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annotate rust/hg-core/src/revlog/mod.rs @ 51117:532e74ad3ff6

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rust: run a clippy pass with the latest stable version Our current version of clippy is older than the latest stable. The newest version has new lints that are moslty good advice, so let's apply them ahead of time. This has the added benefit of reducing the noise for developpers like myself that use clippy as an IDE helper, as well as being more prepared for a future clippy upgrade.
author Rapha?l Gom?s <rgomes@octobus.net>
date Mon, 06 Nov 2023 11:06:08 +0100
parents 12c308c55e53
children 13f58ce70299
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1 // Copyright 2018-2023 Georges Racinet <georges.racinet@octobus.net>
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2 // and Mercurial contributors
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3 //
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4 // This software may be used and distributed according to the terms of the
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5 // GNU General Public License version 2 or any later version.
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6 //! Mercurial concepts for handling revision history
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7
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8 pub mod node;
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9 pub mod nodemap;
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10 mod nodemap_docket;
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11 pub mod path_encode;
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12 pub use node::{FromHexError, Node, NodePrefix};
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13 pub mod changelog;
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14 pub mod filelog;
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15 pub mod index;
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16 pub mod manifest;
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17 pub mod patch;
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18
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19 use std::borrow::Cow;
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20 use std::io::Read;
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21 use std::ops::Deref;
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22 use std::path::Path;
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23
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24 use flate2::read::ZlibDecoder;
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25 use sha1::{Digest, Sha1};
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26 use std::cell::RefCell;
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27 use zstd;
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28
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29 use self::node::{NODE_BYTES_LENGTH, NULL_NODE};
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30 use self::nodemap_docket::NodeMapDocket;
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31 use super::index::Index;
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32 use super::nodemap::{NodeMap, NodeMapError};
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33 use crate::errors::HgError;
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34 use crate::vfs::Vfs;
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35
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36 /// As noted in revlog.c, revision numbers are actually encoded in
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37 /// 4 bytes, and are liberally converted to ints, whence the i32
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38 pub type BaseRevision = i32;
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39
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40 /// Mercurial revision numbers
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41 /// In contrast to the more general [`UncheckedRevision`], these are "checked"
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42 /// in the sense that they should only be used for revisions that are
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43 /// valid for a given index (i.e. in bounds).
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44 #[derive(
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45 Debug,
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46 derive_more::Display,
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47 Clone,
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48 Copy,
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49 Hash,
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50 PartialEq,
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51 Eq,
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52 PartialOrd,
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53 Ord,
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54 )]
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55 pub struct Revision(pub BaseRevision);
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56
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57 impl format_bytes::DisplayBytes for Revision {
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58 fn display_bytes(
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59 &self,
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60 output: &mut dyn std::io::Write,
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61 ) -> std::io::Result<()> {
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62 self.0.display_bytes(output)
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63 }
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64 }
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65
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66 /// Unchecked Mercurial revision numbers.
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67 ///
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68 /// Values of this type have no guarantee of being a valid revision number
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69 /// in any context. Use method `check_revision` to get a valid revision within
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70 /// the appropriate index object.
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71 #[derive(
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72 Debug,
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73 derive_more::Display,
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74 Clone,
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75 Copy,
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76 Hash,
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77 PartialEq,
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78 Eq,
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79 PartialOrd,
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80 Ord,
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81 )]
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82 pub struct UncheckedRevision(pub BaseRevision);
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83
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84 impl format_bytes::DisplayBytes for UncheckedRevision {
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85 fn display_bytes(
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86 &self,
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87 output: &mut dyn std::io::Write,
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88 ) -> std::io::Result<()> {
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89 self.0.display_bytes(output)
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90 }
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91 }
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92
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93 impl From<Revision> for UncheckedRevision {
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94 fn from(value: Revision) -> Self {
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95 Self(value.0)
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96 }
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97 }
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98
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99 impl From<BaseRevision> for UncheckedRevision {
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100 fn from(value: BaseRevision) -> Self {
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101 Self(value)
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102 }
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103 }
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104
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105 /// Marker expressing the absence of a parent
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106 ///
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107 /// Independently of the actual representation, `NULL_REVISION` is guaranteed
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108 /// to be smaller than all existing revisions.
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109 pub const NULL_REVISION: Revision = Revision(-1);
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110
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111 /// Same as `mercurial.node.wdirrev`
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112 ///
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113 /// This is also equal to `i32::max_value()`, but it's better to spell
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114 /// it out explicitely, same as in `mercurial.node`
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115 #[allow(clippy::unreadable_literal)]
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116 pub const WORKING_DIRECTORY_REVISION: UncheckedRevision =
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117 UncheckedRevision(0x7fffffff);
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118
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119 pub const WORKING_DIRECTORY_HEX: &str =
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120 "ffffffffffffffffffffffffffffffffffffffff";
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121
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122 /// The simplest expression of what we need of Mercurial DAGs.
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123 pub trait Graph {
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124 /// Return the two parents of the given `Revision`.
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125 ///
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126 /// Each of the parents can be independently `NULL_REVISION`
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127 fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError>;
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128 }
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129
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130 #[derive(Clone, Debug, PartialEq)]
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131 pub enum GraphError {
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132 ParentOutOfRange(Revision),
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133 }
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134
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135 /// The Mercurial Revlog Index
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136 ///
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137 /// This is currently limited to the minimal interface that is needed for
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138 /// the [`nodemap`](nodemap/index.html) module
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139 pub trait RevlogIndex {
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140 /// Total number of Revisions referenced in this index
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141 fn len(&self) -> usize;
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142
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143 fn is_empty(&self) -> bool {
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144 self.len() == 0
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145 }
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146
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147 /// Return a reference to the Node or `None` for `NULL_REVISION`
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148 fn node(&self, rev: Revision) -> Option<&Node>;
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149
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150 /// Return a [`Revision`] if `rev` is a valid revision number for this
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151 /// index
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152 fn check_revision(&self, rev: UncheckedRevision) -> Option<Revision> {
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153 let rev = rev.0;
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154
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155 if rev == NULL_REVISION.0 || (rev >= 0 && (rev as usize) < self.len())
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156 {
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157 Some(Revision(rev))
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158 } else {
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159 None
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160 }
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161 }
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162 }
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163
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164 const REVISION_FLAG_CENSORED: u16 = 1 << 15;
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165 const REVISION_FLAG_ELLIPSIS: u16 = 1 << 14;
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166 const REVISION_FLAG_EXTSTORED: u16 = 1 << 13;
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167 const REVISION_FLAG_HASCOPIESINFO: u16 = 1 << 12;
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168
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169 // Keep this in sync with REVIDX_KNOWN_FLAGS in
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170 // mercurial/revlogutils/flagutil.py
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171 const REVIDX_KNOWN_FLAGS: u16 = REVISION_FLAG_CENSORED
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172 | REVISION_FLAG_ELLIPSIS
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173 | REVISION_FLAG_EXTSTORED
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174 | REVISION_FLAG_HASCOPIESINFO;
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175
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176 const NULL_REVLOG_ENTRY_FLAGS: u16 = 0;
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177
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178 #[derive(Debug, derive_more::From, derive_more::Display)]
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179 pub enum RevlogError {
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180 InvalidRevision,
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181 /// Working directory is not supported
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182 WDirUnsupported,
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183 /// Found more than one entry whose ID match the requested prefix
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184 AmbiguousPrefix,
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185 #[from]
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186 Other(HgError),
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187 }
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188
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189 impl From<NodeMapError> for RevlogError {
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190 fn from(error: NodeMapError) -> Self {
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191 match error {
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192 NodeMapError::MultipleResults => RevlogError::AmbiguousPrefix,
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193 NodeMapError::RevisionNotInIndex(rev) => RevlogError::corrupted(
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194 format!("nodemap point to revision {} not in index", rev),
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195 ),
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196 }
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197 }
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198 }
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199
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200 fn corrupted<S: AsRef<str>>(context: S) -> HgError {
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201 HgError::corrupted(format!("corrupted revlog, {}", context.as_ref()))
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202 }
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203
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204 impl RevlogError {
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205 fn corrupted<S: AsRef<str>>(context: S) -> Self {
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206 RevlogError::Other(corrupted(context))
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207 }
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208 }
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209
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210 /// Read only implementation of revlog.
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211 pub struct Revlog {
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212 /// When index and data are not interleaved: bytes of the revlog index.
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213 /// When index and data are interleaved: bytes of the revlog index and
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214 /// data.
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215 index: Index,
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216 /// When index and data are not interleaved: bytes of the revlog data
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217 data_bytes: Option<Box<dyn Deref<Target = [u8]> + Send>>,
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218 /// When present on disk: the persistent nodemap for this revlog
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219 nodemap: Option<nodemap::NodeTree>,
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220 }
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221
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222 impl Graph for Revlog {
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223 fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> {
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224 self.index.parents(rev)
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225 }
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226 }
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227
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228 impl Revlog {
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229 /// Open a revlog index file.
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230 ///
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231 /// It will also open the associated data file if index and data are not
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232 /// interleaved.
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233 pub fn open(
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234 store_vfs: &Vfs,
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235 index_path: impl AsRef<Path>,
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236 data_path: Option<&Path>,
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237 use_nodemap: bool,
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238 ) -> Result<Self, HgError> {
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239 Self::open_gen(store_vfs, index_path, data_path, use_nodemap, None)
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240 }
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241
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242 fn open_gen(
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243 store_vfs: &Vfs,
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244 index_path: impl AsRef<Path>,
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245 data_path: Option<&Path>,
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246 use_nodemap: bool,
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247 nodemap_for_test: Option<nodemap::NodeTree>,
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248 ) -> Result<Self, HgError> {
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249 let index_path = index_path.as_ref();
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250 let index = {
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251 match store_vfs.mmap_open_opt(index_path)? {
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252 None => Index::new(Box::<Vec<_>>::default()),
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253 Some(index_mmap) => {
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254 let index = Index::new(Box::new(index_mmap))?;
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255 Ok(index)
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256 }
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257 }
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258 }?;
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259
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260 let default_data_path = index_path.with_extension("d");
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261
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262 // type annotation required
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263 // won't recognize Mmap as Deref<Target = [u8]>
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264 let data_bytes: Option<Box<dyn Deref<Target = [u8]> + Send>> =
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265 if index.is_inline() {
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266 None
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267 } else {
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268 let data_path = data_path.unwrap_or(&default_data_path);
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269 let data_mmap = store_vfs.mmap_open(data_path)?;
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270 Some(Box::new(data_mmap))
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271 };
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272
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273 let nodemap = if index.is_inline() || !use_nodemap {
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274 None
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275 } else {
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276 NodeMapDocket::read_from_file(store_vfs, index_path)?.map(
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277 |(docket, data)| {
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278 nodemap::NodeTree::load_bytes(
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279 Box::new(data),
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280 docket.data_length,
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281 )
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282 },
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283 )
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284 };
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285
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286 let nodemap = nodemap_for_test.or(nodemap);
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287
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288 Ok(Revlog {
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289 index,
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290 data_bytes,
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291 nodemap,
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292 })
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293 }
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294
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295 /// Return number of entries of the `Revlog`.
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296 pub fn len(&self) -> usize {
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297 self.index.len()
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298 }
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299
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300 /// Returns `true` if the `Revlog` has zero `entries`.
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301 pub fn is_empty(&self) -> bool {
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302 self.index.is_empty()
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303 }
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304
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305 /// Returns the node ID for the given revision number, if it exists in this
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306 /// revlog
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307 pub fn node_from_rev(&self, rev: UncheckedRevision) -> Option<&Node> {
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308 if rev == NULL_REVISION.into() {
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309 return Some(&NULL_NODE);
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310 }
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311 let rev = self.index.check_revision(rev)?;
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312 Some(self.index.get_entry(rev)?.hash())
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313 }
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314
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315 /// Return the revision number for the given node ID, if it exists in this
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316 /// revlog
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317 pub fn rev_from_node(
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318 &self,
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319 node: NodePrefix,
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320 ) -> Result<Revision, RevlogError> {
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321 if let Some(nodemap) = &self.nodemap {
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322 nodemap
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323 .find_bin(&self.index, node)?
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324 .ok_or(RevlogError::InvalidRevision)
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325 } else {
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326 self.rev_from_node_no_persistent_nodemap(node)
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327 }
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diff changeset
328 }
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329
50740
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330 /// Same as `rev_from_node`, without using a persistent nodemap
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331 ///
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332 /// This is used as fallback when a persistent nodemap is not present.
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333 /// This happens when the persistent-nodemap experimental feature is not
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diff changeset
334 /// enabled, or for small revlogs.
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335 fn rev_from_node_no_persistent_nodemap(
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diff changeset
336 &self,
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diff changeset
337 node: NodePrefix,
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338 ) -> Result<Revision, RevlogError> {
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339 // Linear scan of the revlog
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340 // TODO: consider building a non-persistent nodemap in memory to
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341 // optimize these cases.
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342 let mut found_by_prefix = None;
50990
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diff changeset
343 for rev in (-1..self.len() as BaseRevision).rev() {
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344 let rev = Revision(rev as BaseRevision);
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diff changeset
345 let candidate_node = if rev == Revision(-1) {
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diff changeset
346 NULL_NODE
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diff changeset
347 } else {
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348 let index_entry =
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diff changeset
349 self.index.get_entry(rev).ok_or_else(|| {
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diff changeset
350 HgError::corrupted(
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diff changeset
351 "revlog references a revision not in the index",
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diff changeset
352 )
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diff changeset
353 })?;
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diff changeset
354 *index_entry.hash()
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diff changeset
355 };
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diff changeset
356 if node == candidate_node {
49937
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diff changeset
357 return Ok(rev);
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358 }
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diff changeset
359 if node.is_prefix_of(&candidate_node) {
49937
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360 if found_by_prefix.is_some() {
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diff changeset
361 return Err(RevlogError::AmbiguousPrefix);
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diff changeset
362 }
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diff changeset
363 found_by_prefix = Some(rev)
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diff changeset
364 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
365 }
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diff changeset
366 found_by_prefix.ok_or(RevlogError::InvalidRevision)
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367 }
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368
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369 /// Returns whether the given revision exists in this revlog.
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370 pub fn has_rev(&self, rev: UncheckedRevision) -> bool {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
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diff changeset
371 self.index.check_revision(rev).is_some()
49937
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372 }
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diff changeset
373
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374 /// Return the full data associated to a revision.
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375 ///
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376 /// All entries required to build the final data out of deltas will be
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
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377 /// retrieved as needed, and the deltas will be applied to the inital
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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378 /// snapshot to rebuild the final data.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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379 pub fn get_rev_data(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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380 &self,
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
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381 rev: UncheckedRevision,
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
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382 ) -> Result<Cow<[u8]>, RevlogError> {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
383 if rev == NULL_REVISION.into() {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
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384 return Ok(Cow::Borrowed(&[]));
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
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385 };
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
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386 self.get_entry(rev)?.data()
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
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387 }
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
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parents: 50973
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388
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
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389 /// [`Self::get_rev_data`] for checked revisions.
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
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390 pub fn get_rev_data_for_checked_rev(
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
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391 &self,
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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392 rev: Revision,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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393 ) -> Result<Cow<[u8]>, RevlogError> {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
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394 if rev == NULL_REVISION {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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395 return Ok(Cow::Borrowed(&[]));
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
396 };
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
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397 self.get_entry_for_checked_rev(rev)?.data()
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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398 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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399
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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400 /// Check the hash of some given data against the recorded hash.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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401 pub fn check_hash(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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402 &self,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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403 p1: Revision,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
404 p2: Revision,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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405 expected: &[u8],
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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406 data: &[u8],
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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407 ) -> bool {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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408 let e1 = self.index.get_entry(p1);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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409 let h1 = match e1 {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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410 Some(ref entry) => entry.hash(),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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411 None => &NULL_NODE,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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412 };
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
413 let e2 = self.index.get_entry(p2);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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414 let h2 = match e2 {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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415 Some(ref entry) => entry.hash(),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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416 None => &NULL_NODE,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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417 };
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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418
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
419 hash(data, h1.as_bytes(), h2.as_bytes()) == expected
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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420 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
421
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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422 /// Build the full data of a revision out its snapshot
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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423 /// and its deltas.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
424 fn build_data_from_deltas(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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425 snapshot: RevlogEntry,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
426 deltas: &[RevlogEntry],
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
427 ) -> Result<Vec<u8>, HgError> {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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428 let snapshot = snapshot.data_chunk()?;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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429 let deltas = deltas
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
430 .iter()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
431 .rev()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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432 .map(RevlogEntry::data_chunk)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
433 .collect::<Result<Vec<_>, _>>()?;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
434 let patches: Vec<_> =
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
435 deltas.iter().map(|d| patch::PatchList::new(d)).collect();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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436 let patch = patch::fold_patch_lists(&patches);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
437 Ok(patch.apply(&snapshot))
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
438 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
439
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
440 /// Return the revlog data.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
441 fn data(&self) -> &[u8] {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
442 match &self.data_bytes {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
443 Some(data_bytes) => data_bytes,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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444 None => panic!(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
445 "forgot to load the data or trying to access inline data"
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
446 ),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
447 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
448 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
449
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
450 pub fn make_null_entry(&self) -> RevlogEntry {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
451 RevlogEntry {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
452 revlog: self,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
453 rev: NULL_REVISION,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
454 bytes: b"",
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
455 compressed_len: 0,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
456 uncompressed_len: 0,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
457 base_rev_or_base_of_delta_chain: None,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
458 p1: NULL_REVISION,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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parents: 47961
diff changeset
459 p2: NULL_REVISION,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
460 flags: NULL_REVLOG_ENTRY_FLAGS,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
461 hash: NULL_NODE,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
462 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
463 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
464
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
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diff changeset
465 fn get_entry_for_checked_rev(
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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diff changeset
466 &self,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
467 rev: Revision,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
468 ) -> Result<RevlogEntry, RevlogError> {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
469 if rev == NULL_REVISION {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
470 return Ok(self.make_null_entry());
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
471 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
472 let index_entry = self
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
473 .index
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
474 .get_entry(rev)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
475 .ok_or(RevlogError::InvalidRevision)?;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
476 let start = index_entry.offset();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
477 let end = start + index_entry.compressed_len() as usize;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
478 let data = if self.index.is_inline() {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
479 self.index.data(start, end)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
480 } else {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
481 &self.data()[start..end]
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
482 };
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
483 let base_rev = self
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
484 .index
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
485 .check_revision(index_entry.base_revision_or_base_of_delta_chain())
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
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diff changeset
486 .ok_or_else(|| {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
487 RevlogError::corrupted(format!(
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
488 "base revision for rev {} is invalid",
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
489 rev
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
490 ))
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
491 })?;
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
492 let p1 =
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
493 self.index.check_revision(index_entry.p1()).ok_or_else(|| {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
494 RevlogError::corrupted(format!(
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
495 "p1 for rev {} is invalid",
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
496 rev
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
497 ))
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
498 })?;
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
499 let p2 =
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
500 self.index.check_revision(index_entry.p2()).ok_or_else(|| {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
501 RevlogError::corrupted(format!(
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
502 "p2 for rev {} is invalid",
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
503 rev
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
504 ))
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
505 })?;
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
506 let entry = RevlogEntry {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
507 revlog: self,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
508 rev,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
509 bytes: data,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
510 compressed_len: index_entry.compressed_len(),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
511 uncompressed_len: index_entry.uncompressed_len(),
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
512 base_rev_or_base_of_delta_chain: if base_rev == rev {
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
513 None
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
514 } else {
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
515 Some(base_rev)
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
516 },
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
517 p1,
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
518 p2,
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
519 flags: index_entry.flags(),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
520 hash: *index_entry.hash(),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
521 };
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
522 Ok(entry)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
523 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
524
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
525 /// Get an entry of the revlog.
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
526 pub fn get_entry(
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
527 &self,
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
528 rev: UncheckedRevision,
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
529 ) -> Result<RevlogEntry, RevlogError> {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
530 if rev == NULL_REVISION.into() {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
531 return Ok(self.make_null_entry());
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
532 }
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
533 let rev = self.index.check_revision(rev).ok_or_else(|| {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
534 RevlogError::corrupted(format!("rev {} is invalid", rev))
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
535 })?;
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
536 self.get_entry_for_checked_rev(rev)
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
537 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
538 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
539
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
540 /// The revlog entry's bytes and the necessary informations to extract
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
541 /// the entry's data.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
542 #[derive(Clone)]
50409
7ef51fff2c4f rust-revlog: explicit naming for `RevlogEntry` lifetime
Georges Racinet <georges.racinet@octobus.net>
parents: 49937
diff changeset
543 pub struct RevlogEntry<'revlog> {
7ef51fff2c4f rust-revlog: explicit naming for `RevlogEntry` lifetime
Georges Racinet <georges.racinet@octobus.net>
parents: 49937
diff changeset
544 revlog: &'revlog Revlog,
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
545 rev: Revision,
50409
7ef51fff2c4f rust-revlog: explicit naming for `RevlogEntry` lifetime
Georges Racinet <georges.racinet@octobus.net>
parents: 49937
diff changeset
546 bytes: &'revlog [u8],
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
547 compressed_len: u32,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
548 uncompressed_len: i32,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
549 base_rev_or_base_of_delta_chain: Option<Revision>,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
550 p1: Revision,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
551 p2: Revision,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
552 flags: u16,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
553 hash: Node,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
554 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
555
50503
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
556 thread_local! {
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
557 // seems fine to [unwrap] here: this can only fail due to memory allocation
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
558 // failing, and it's normal for that to cause panic.
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
559 static ZSTD_DECODER : RefCell<zstd::bulk::Decompressor<'static>> =
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
560 RefCell::new(zstd::bulk::Decompressor::new().ok().unwrap());
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
561 }
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
562
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
563 fn zstd_decompress_to_buffer(
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
564 bytes: &[u8],
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
565 buf: &mut Vec<u8>,
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
566 ) -> Result<usize, std::io::Error> {
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
567 ZSTD_DECODER
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
568 .with(|decoder| decoder.borrow_mut().decompress_to_buffer(bytes, buf))
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
569 }
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
570
50409
7ef51fff2c4f rust-revlog: explicit naming for `RevlogEntry` lifetime
Georges Racinet <georges.racinet@octobus.net>
parents: 49937
diff changeset
571 impl<'revlog> RevlogEntry<'revlog> {
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
572 pub fn revision(&self) -> Revision {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
573 self.rev
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
574 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
575
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
576 pub fn node(&self) -> &Node {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
577 &self.hash
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
578 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
579
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
580 pub fn uncompressed_len(&self) -> Option<u32> {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
581 u32::try_from(self.uncompressed_len).ok()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
582 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
583
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
584 pub fn has_p1(&self) -> bool {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
585 self.p1 != NULL_REVISION
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
586 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
587
50410
c101e7757ed7 rust-revlog: fix lifetime problem for RevlogEntry parent entries accessors
Georges Racinet <georges.racinet@octobus.net>
parents: 50409
diff changeset
588 pub fn p1_entry(
c101e7757ed7 rust-revlog: fix lifetime problem for RevlogEntry parent entries accessors
Georges Racinet <georges.racinet@octobus.net>
parents: 50409
diff changeset
589 &self,
c101e7757ed7 rust-revlog: fix lifetime problem for RevlogEntry parent entries accessors
Georges Racinet <georges.racinet@octobus.net>
parents: 50409
diff changeset
590 ) -> Result<Option<RevlogEntry<'revlog>>, RevlogError> {
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
591 if self.p1 == NULL_REVISION {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
592 Ok(None)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
593 } else {
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
594 Ok(Some(self.revlog.get_entry_for_checked_rev(self.p1)?))
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
595 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
596 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
597
50410
c101e7757ed7 rust-revlog: fix lifetime problem for RevlogEntry parent entries accessors
Georges Racinet <georges.racinet@octobus.net>
parents: 50409
diff changeset
598 pub fn p2_entry(
c101e7757ed7 rust-revlog: fix lifetime problem for RevlogEntry parent entries accessors
Georges Racinet <georges.racinet@octobus.net>
parents: 50409
diff changeset
599 &self,
c101e7757ed7 rust-revlog: fix lifetime problem for RevlogEntry parent entries accessors
Georges Racinet <georges.racinet@octobus.net>
parents: 50409
diff changeset
600 ) -> Result<Option<RevlogEntry<'revlog>>, RevlogError> {
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
601 if self.p2 == NULL_REVISION {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
602 Ok(None)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
603 } else {
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
604 Ok(Some(self.revlog.get_entry_for_checked_rev(self.p2)?))
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
605 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
606 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
607
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
608 pub fn p1(&self) -> Option<Revision> {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
609 if self.p1 == NULL_REVISION {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
610 None
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
611 } else {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
612 Some(self.p1)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
613 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
614 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
615
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
616 pub fn p2(&self) -> Option<Revision> {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
617 if self.p2 == NULL_REVISION {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
618 None
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
619 } else {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
620 Some(self.p2)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
621 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
622 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
623
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
624 pub fn is_censored(&self) -> bool {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
625 (self.flags & REVISION_FLAG_CENSORED) != 0
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
626 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
627
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
628 pub fn has_length_affecting_flag_processor(&self) -> bool {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
629 // Relevant Python code: revlog.size()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
630 // note: ELLIPSIS is known to not change the content
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
631 (self.flags & (REVIDX_KNOWN_FLAGS ^ REVISION_FLAG_ELLIPSIS)) != 0
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
632 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
633
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
634 /// The data for this entry, after resolving deltas if any.
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
635 pub fn rawdata(&self) -> Result<Cow<'revlog, [u8]>, RevlogError> {
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
636 let mut entry = self.clone();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
637 let mut delta_chain = vec![];
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
638
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
639 // The meaning of `base_rev_or_base_of_delta_chain` depends on
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
640 // generaldelta. See the doc on `ENTRY_DELTA_BASE` in
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
641 // `mercurial/revlogutils/constants.py` and the code in
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
642 // [_chaininfo] and in [index_deltachain].
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
643 let uses_generaldelta = self.revlog.index.uses_generaldelta();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
644 while let Some(base_rev) = entry.base_rev_or_base_of_delta_chain {
50973
9929c8a73488 rust-revlog: split logic for `rawdata` to prepare for `UncheckedRevision` use
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50972
diff changeset
645 entry = if uses_generaldelta {
9929c8a73488 rust-revlog: split logic for `rawdata` to prepare for `UncheckedRevision` use
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50972
diff changeset
646 delta_chain.push(entry);
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
647 self.revlog.get_entry_for_checked_rev(base_rev)?
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
648 } else {
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
649 let base_rev = UncheckedRevision(entry.rev.0 - 1);
50973
9929c8a73488 rust-revlog: split logic for `rawdata` to prepare for `UncheckedRevision` use
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50972
diff changeset
650 delta_chain.push(entry);
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
651 self.revlog.get_entry(base_rev)?
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
652 };
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
653 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
654
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
655 let data = if delta_chain.is_empty() {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
656 entry.data_chunk()?
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
657 } else {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
658 Revlog::build_data_from_deltas(entry, &delta_chain)?.into()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
659 };
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
660
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
661 Ok(data)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
662 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
663
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
664 fn check_data(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
665 &self,
50409
7ef51fff2c4f rust-revlog: explicit naming for `RevlogEntry` lifetime
Georges Racinet <georges.racinet@octobus.net>
parents: 49937
diff changeset
666 data: Cow<'revlog, [u8]>,
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
667 ) -> Result<Cow<'revlog, [u8]>, RevlogError> {
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
668 if self.revlog.check_hash(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
669 self.p1,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
670 self.p2,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
671 self.hash.as_bytes(),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
672 &data,
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
673 ) {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
674 Ok(data)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
675 } else {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
676 if (self.flags & REVISION_FLAG_ELLIPSIS) != 0 {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
677 return Err(HgError::unsupported(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
678 "ellipsis revisions are not supported by rhg",
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
679 )
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
680 .into());
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
681 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
682 Err(corrupted(format!(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
683 "hash check failed for revision {}",
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
684 self.rev
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
685 ))
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
686 .into())
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
687 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
688 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
689
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
690 pub fn data(&self) -> Result<Cow<'revlog, [u8]>, RevlogError> {
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
691 let data = self.rawdata()?;
50743
124c44b5cfad rust-revlog: fix RevlogEntry.data() for NULL_REVISION
Georges Racinet <georges.racinet@octobus.net>
parents: 50742
diff changeset
692 if self.rev == NULL_REVISION {
124c44b5cfad rust-revlog: fix RevlogEntry.data() for NULL_REVISION
Georges Racinet <georges.racinet@octobus.net>
parents: 50742
diff changeset
693 return Ok(data);
124c44b5cfad rust-revlog: fix RevlogEntry.data() for NULL_REVISION
Georges Racinet <georges.racinet@octobus.net>
parents: 50742
diff changeset
694 }
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
695 if self.is_censored() {
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
696 return Err(HgError::CensoredNodeError.into());
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
697 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
698 self.check_data(data)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
699 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
700
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
701 /// Extract the data contained in the entry.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
702 /// This may be a delta. (See `is_delta`.)
50409
7ef51fff2c4f rust-revlog: explicit naming for `RevlogEntry` lifetime
Georges Racinet <georges.racinet@octobus.net>
parents: 49937
diff changeset
703 fn data_chunk(&self) -> Result<Cow<'revlog, [u8]>, HgError> {
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
704 if self.bytes.is_empty() {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
705 return Ok(Cow::Borrowed(&[]));
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
706 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
707 match self.bytes[0] {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
708 // Revision data is the entirety of the entry, including this
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
709 // header.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
710 b'\0' => Ok(Cow::Borrowed(self.bytes)),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
711 // Raw revision data follows.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
712 b'u' => Ok(Cow::Borrowed(&self.bytes[1..])),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
713 // zlib (RFC 1950) data.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
714 b'x' => Ok(Cow::Owned(self.uncompressed_zlib_data()?)),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
715 // zstd data.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
716 b'\x28' => Ok(Cow::Owned(self.uncompressed_zstd_data()?)),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
717 // A proper new format should have had a repo/store requirement.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
718 format_type => Err(corrupted(format!(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
719 "unknown compression header '{}'",
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
720 format_type
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
721 ))),
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
722 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
723 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
724
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
725 fn uncompressed_zlib_data(&self) -> Result<Vec<u8>, HgError> {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
726 let mut decoder = ZlibDecoder::new(self.bytes);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
727 if self.is_delta() {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
728 let mut buf = Vec::with_capacity(self.compressed_len as usize);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
729 decoder
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
730 .read_to_end(&mut buf)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
731 .map_err(|e| corrupted(e.to_string()))?;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
732 Ok(buf)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
733 } else {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
734 let cap = self.uncompressed_len.max(0) as usize;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
735 let mut buf = vec![0; cap];
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
736 decoder
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
737 .read_exact(&mut buf)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
738 .map_err(|e| corrupted(e.to_string()))?;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
739 Ok(buf)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
740 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
741 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
742
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
743 fn uncompressed_zstd_data(&self) -> Result<Vec<u8>, HgError> {
50505
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
744 let cap = self.uncompressed_len.max(0) as usize;
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
745 if self.is_delta() {
50505
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
746 // [cap] is usually an over-estimate of the space needed because
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
747 // it's the length of delta-decoded data, but we're interested
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
748 // in the size of the delta.
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
749 // This means we have to [shrink_to_fit] to avoid holding on
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
750 // to a large chunk of memory, but it also means we must have a
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
751 // fallback branch, for the case when the delta is longer than
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
752 // the original data (surprisingly, this does happen in practice)
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
753 let mut buf = Vec::with_capacity(cap);
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
754 match zstd_decompress_to_buffer(self.bytes, &mut buf) {
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
755 Ok(_) => buf.shrink_to_fit(),
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
756 Err(_) => {
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
757 buf.clear();
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
758 zstd::stream::copy_decode(self.bytes, &mut buf)
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
759 .map_err(|e| corrupted(e.to_string()))?;
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
760 }
39ed7b2953bb rust: mostly avoid streaming zstd decompression
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50504
diff changeset
761 };
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
762 Ok(buf)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
763 } else {
50504
d1cab48354bc rust: in zstd decompression, avoid a useless vec initialization
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50503
diff changeset
764 let mut buf = Vec::with_capacity(cap);
50503
74d8a1b03960 rust: speed up zstd decompression by re-using the decompression context
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50410
diff changeset
765 let len = zstd_decompress_to_buffer(self.bytes, &mut buf)
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
766 .map_err(|e| corrupted(e.to_string()))?;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
767 if len != self.uncompressed_len as usize {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
768 Err(corrupted("uncompressed length does not match"))
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
769 } else {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
770 Ok(buf)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
771 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
772 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
773 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
774
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
775 /// Tell if the entry is a snapshot or a delta
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
776 /// (influences on decompression).
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
777 fn is_delta(&self) -> bool {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
778 self.base_rev_or_base_of_delta_chain.is_some()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
779 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
780 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
781
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
782 /// Calculate the hash of a revision given its data and its parents.
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
783 fn hash(
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
784 data: &[u8],
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
785 p1_hash: &[u8],
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
786 p2_hash: &[u8],
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
787 ) -> [u8; NODE_BYTES_LENGTH] {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
788 let mut hasher = Sha1::new();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
789 let (a, b) = (p1_hash, p2_hash);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
790 if a > b {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
791 hasher.update(b);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
792 hasher.update(a);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
793 } else {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
794 hasher.update(a);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
795 hasher.update(b);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
796 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
797 hasher.update(data);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
798 *hasher.finalize().as_ref()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
799 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
800
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
801 #[cfg(test)]
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
802 mod tests {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
803 use super::*;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
804 use crate::index::{IndexEntryBuilder, INDEX_ENTRY_SIZE};
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
805 use itertools::Itertools;
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
806
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
807 #[test]
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
808 fn test_empty() {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
809 let temp = tempfile::tempdir().unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
810 let vfs = Vfs { base: temp.path() };
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
811 std::fs::write(temp.path().join("foo.i"), b"").unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
812 let revlog = Revlog::open(&vfs, "foo.i", None, false).unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
813 assert!(revlog.is_empty());
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
814 assert_eq!(revlog.len(), 0);
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
815 assert!(revlog.get_entry(0.into()).is_err());
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
816 assert!(!revlog.has_rev(0.into()));
50742
3338c6ffdaa3 rust-revlog: using constant in test
Georges Racinet <georges.racinet@octobus.net>
parents: 50741
diff changeset
817 assert_eq!(
3338c6ffdaa3 rust-revlog: using constant in test
Georges Racinet <georges.racinet@octobus.net>
parents: 50741
diff changeset
818 revlog.rev_from_node(NULL_NODE.into()).unwrap(),
3338c6ffdaa3 rust-revlog: using constant in test
Georges Racinet <georges.racinet@octobus.net>
parents: 50741
diff changeset
819 NULL_REVISION
3338c6ffdaa3 rust-revlog: using constant in test
Georges Racinet <georges.racinet@octobus.net>
parents: 50741
diff changeset
820 );
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
821 let null_entry = revlog.get_entry(NULL_REVISION.into()).ok().unwrap();
50743
124c44b5cfad rust-revlog: fix RevlogEntry.data() for NULL_REVISION
Georges Racinet <georges.racinet@octobus.net>
parents: 50742
diff changeset
822 assert_eq!(null_entry.revision(), NULL_REVISION);
124c44b5cfad rust-revlog: fix RevlogEntry.data() for NULL_REVISION
Georges Racinet <georges.racinet@octobus.net>
parents: 50742
diff changeset
823 assert!(null_entry.data().unwrap().is_empty());
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
824 }
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
825
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
826 #[test]
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
827 fn test_inline() {
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
828 let temp = tempfile::tempdir().unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
829 let vfs = Vfs { base: temp.path() };
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
830 let node0 = Node::from_hex("2ed2a3912a0b24502043eae84ee4b279c18b90dd")
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
831 .unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
832 let node1 = Node::from_hex("b004912a8510032a0350a74daa2803dadfb00e12")
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
833 .unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
834 let node2 = Node::from_hex("dd6ad206e907be60927b5a3117b97dffb2590582")
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
835 .unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
836 let entry0_bytes = IndexEntryBuilder::new()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
837 .is_first(true)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
838 .with_version(1)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
839 .with_inline(true)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
840 .with_offset(INDEX_ENTRY_SIZE)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
841 .with_node(node0)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
842 .build();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
843 let entry1_bytes = IndexEntryBuilder::new()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
844 .with_offset(INDEX_ENTRY_SIZE)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
845 .with_node(node1)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
846 .build();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
847 let entry2_bytes = IndexEntryBuilder::new()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
848 .with_offset(INDEX_ENTRY_SIZE)
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
849 .with_p1(Revision(0))
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
850 .with_p2(Revision(1))
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
851 .with_node(node2)
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
852 .build();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
853 let contents = vec![entry0_bytes, entry1_bytes, entry2_bytes]
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
854 .into_iter()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
855 .flatten()
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
856 .collect_vec();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
857 std::fs::write(temp.path().join("foo.i"), contents).unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
858 let revlog = Revlog::open(&vfs, "foo.i", None, false).unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
859
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
860 let entry0 = revlog.get_entry(0.into()).ok().unwrap();
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
861 assert_eq!(entry0.revision(), Revision(0));
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
862 assert_eq!(*entry0.node(), node0);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
863 assert!(!entry0.has_p1());
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
864 assert_eq!(entry0.p1(), None);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
865 assert_eq!(entry0.p2(), None);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
866 let p1_entry = entry0.p1_entry().unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
867 assert!(p1_entry.is_none());
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
868 let p2_entry = entry0.p2_entry().unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
869 assert!(p2_entry.is_none());
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
870
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
871 let entry1 = revlog.get_entry(1.into()).ok().unwrap();
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
872 assert_eq!(entry1.revision(), Revision(1));
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
873 assert_eq!(*entry1.node(), node1);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
874 assert!(!entry1.has_p1());
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
875 assert_eq!(entry1.p1(), None);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
876 assert_eq!(entry1.p2(), None);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
877 let p1_entry = entry1.p1_entry().unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
878 assert!(p1_entry.is_none());
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
879 let p2_entry = entry1.p2_entry().unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
880 assert!(p2_entry.is_none());
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
881
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
882 let entry2 = revlog.get_entry(2.into()).ok().unwrap();
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
883 assert_eq!(entry2.revision(), Revision(2));
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
884 assert_eq!(*entry2.node(), node2);
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
885 assert!(entry2.has_p1());
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
886 assert_eq!(entry2.p1(), Some(Revision(0)));
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
887 assert_eq!(entry2.p2(), Some(Revision(1)));
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
888 let p1_entry = entry2.p1_entry().unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
889 assert!(p1_entry.is_some());
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
890 assert_eq!(p1_entry.unwrap().revision(), Revision(0));
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
891 let p2_entry = entry2.p2_entry().unwrap();
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
892 assert!(p2_entry.is_some());
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
893 assert_eq!(p2_entry.unwrap().revision(), Revision(1));
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
894 }
50741
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
895
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
896 #[test]
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
897 fn test_nodemap() {
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
898 let temp = tempfile::tempdir().unwrap();
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
899 let vfs = Vfs { base: temp.path() };
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
900
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
901 // building a revlog with a forced Node starting with zeros
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
902 // This is a corruption, but it does not preclude using the nodemap
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
903 // if we don't try and access the data
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
904 let node0 = Node::from_hex("00d2a3912a0b24502043eae84ee4b279c18b90dd")
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
905 .unwrap();
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
906 let node1 = Node::from_hex("b004912a8510032a0350a74daa2803dadfb00e12")
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
907 .unwrap();
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
908 let entry0_bytes = IndexEntryBuilder::new()
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
909 .is_first(true)
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
910 .with_version(1)
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
911 .with_inline(true)
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
912 .with_offset(INDEX_ENTRY_SIZE)
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
913 .with_node(node0)
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
914 .build();
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
915 let entry1_bytes = IndexEntryBuilder::new()
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
916 .with_offset(INDEX_ENTRY_SIZE)
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
917 .with_node(node1)
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
918 .build();
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
919 let contents = vec![entry0_bytes, entry1_bytes]
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
920 .into_iter()
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
921 .flatten()
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
922 .collect_vec();
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
923 std::fs::write(temp.path().join("foo.i"), contents).unwrap();
50983
eccf7dc7c91e revlog: make the rust test for node hex prefix resolution exercise the nodemap
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50982
diff changeset
924
eccf7dc7c91e revlog: make the rust test for node hex prefix resolution exercise the nodemap
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50982
diff changeset
925 let mut idx = nodemap::tests::TestNtIndex::new();
50990
12c308c55e53 branching: merge stable into default
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50976 50983
diff changeset
926 idx.insert_node(Revision(0), node0).unwrap();
12c308c55e53 branching: merge stable into default
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50976 50983
diff changeset
927 idx.insert_node(Revision(1), node1).unwrap();
50983
eccf7dc7c91e revlog: make the rust test for node hex prefix resolution exercise the nodemap
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50982
diff changeset
928
eccf7dc7c91e revlog: make the rust test for node hex prefix resolution exercise the nodemap
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50982
diff changeset
929 let revlog =
eccf7dc7c91e revlog: make the rust test for node hex prefix resolution exercise the nodemap
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50982
diff changeset
930 Revlog::open_gen(&vfs, "foo.i", None, true, Some(idx.nt)).unwrap();
50741
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
931
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
932 // accessing the data shows the corruption
50974
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50973
diff changeset
933 revlog.get_entry(0.into()).unwrap().data().unwrap_err();
50741
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
934
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
935 assert_eq!(
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
936 revlog.rev_from_node(NULL_NODE.into()).unwrap(),
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
937 Revision(-1)
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
938 );
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
939 assert_eq!(revlog.rev_from_node(node0.into()).unwrap(), Revision(0));
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
940 assert_eq!(revlog.rev_from_node(node1.into()).unwrap(), Revision(1));
50741
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
941 assert_eq!(
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
942 revlog
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
943 .rev_from_node(NodePrefix::from_hex("000").unwrap())
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
944 .unwrap(),
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
945 Revision(-1)
50741
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
946 );
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
947 assert_eq!(
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
948 revlog
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
949 .rev_from_node(NodePrefix::from_hex("b00").unwrap())
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
950 .unwrap(),
50976
4c5f6e95df84 rust: make `Revision` a newtype
Rapha?l Gom?s <rgomes@octobus.net>
parents: 50975
diff changeset
951 Revision(1)
50741
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
952 );
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
953 // RevlogError does not implement PartialEq
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
954 // (ultimately because io::Error does not)
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
955 match revlog
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
956 .rev_from_node(NodePrefix::from_hex("00").unwrap())
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
957 .expect_err("Expected to give AmbiguousPrefix error")
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
958 {
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
959 RevlogError::AmbiguousPrefix => (),
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
960 e => {
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
961 panic!("Got another error than AmbiguousPrefix: {:?}", e);
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
962 }
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
963 };
bca4037306da rust-revlog: fix incorrect results with NULL_NODE prefixes
Georges Racinet <georges.racinet@octobus.net>
parents: 50740
diff changeset
964 }
49937
750409505286 rust-clippy: merge "revlog" module definition and struct implementation
Rapha?l Gom?s <rgomes@octobus.net>
parents: 47961
diff changeset
965 }