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annotate rust/hg-core/src/dirstate_tree/status.rs @ 49127:f3e8b0b0a8c2

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rust-dirstatemap: add `clear_cached_mtime` helper method This will help remove the `get_or_insert` method, which is dangerous because it does not take the `DirstateMap` counters into account. Differential Revision: https://phab.mercurial-scm.org/D12525
author Rapha?l Gom?s <rgomes@octobus.net>
date Fri, 08 Apr 2022 16:03:39 +0200
parents dd6b67d5c256
children 464747faef14
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 use crate::dirstate::entry::TruncatedTimestamp;
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2 use crate::dirstate::status::IgnoreFnType;
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3 use crate::dirstate::status::StatusPath;
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4 use crate::dirstate_tree::dirstate_map::BorrowedPath;
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5 use crate::dirstate_tree::dirstate_map::ChildNodesRef;
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6 use crate::dirstate_tree::dirstate_map::DirstateMap;
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7 use crate::dirstate_tree::dirstate_map::NodeData;
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8 use crate::dirstate_tree::dirstate_map::NodeRef;
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9 use crate::dirstate_tree::on_disk::DirstateV2ParseError;
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10 use crate::matchers::get_ignore_function;
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11 use crate::matchers::Matcher;
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12 use crate::utils::files::get_bytes_from_os_string;
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13 use crate::utils::files::get_path_from_bytes;
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14 use crate::utils::hg_path::HgPath;
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15 use crate::BadMatch;
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16 use crate::DirstateStatus;
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17 use crate::EntryState;
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18 use crate::HgPathBuf;
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19 use crate::HgPathCow;
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20 use crate::PatternFileWarning;
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21 use crate::StatusError;
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22 use crate::StatusOptions;
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23 use micro_timer::timed;
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24 use rayon::prelude::*;
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25 use sha1::{Digest, Sha1};
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26 use std::borrow::Cow;
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27 use std::io;
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28 use std::path::Path;
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29 use std::path::PathBuf;
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30 use std::sync::Mutex;
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31 use std::time::SystemTime;
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32
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33 /// Returns the status of the working directory compared to its parent
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34 /// changeset.
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35 ///
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36 /// This algorithm is based on traversing the filesystem tree (`fs` in function
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37 /// and variable names) and dirstate tree at the same time. The core of this
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38 /// traversal is the recursive `traverse_fs_directory_and_dirstate` function
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39 /// and its use of `itertools::merge_join_by`. When reaching a path that only
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40 /// exists in one of the two trees, depending on information requested by
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41 /// `options` we may need to traverse the remaining subtree.
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42 #[timed]
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43 pub fn status<'dirstate>(
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44 dmap: &'dirstate mut DirstateMap,
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45 matcher: &(dyn Matcher + Sync),
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46 root_dir: PathBuf,
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47 ignore_files: Vec<PathBuf>,
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48 options: StatusOptions,
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49 ) -> Result<(DirstateStatus<'dirstate>, Vec<PatternFileWarning>), StatusError>
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50 {
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51 // Force the global rayon threadpool to not exceed 16 concurrent threads.
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52 // This is a stop-gap measure until we figure out why using more than 16
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53 // threads makes `status` slower for each additional thread.
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54 // We use `ok()` in case the global threadpool has already been
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55 // instantiated in `rhg` or some other caller.
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56 // TODO find the underlying cause and fix it, then remove this.
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57 rayon::ThreadPoolBuilder::new()
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58 .num_threads(16)
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59 .build_global()
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60 .ok();
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61
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62 let (ignore_fn, warnings, patterns_changed): (IgnoreFnType, _, _) =
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63 if options.list_ignored || options.list_unknown {
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64 let mut hasher = Sha1::new();
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65 let (ignore_fn, warnings) = get_ignore_function(
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66 ignore_files,
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67 &root_dir,
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68 &mut |pattern_bytes| hasher.update(pattern_bytes),
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69 )?;
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70 let new_hash = *hasher.finalize().as_ref();
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71 let changed = new_hash != dmap.ignore_patterns_hash;
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72 dmap.ignore_patterns_hash = new_hash;
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73 (ignore_fn, warnings, Some(changed))
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74 } else {
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75 (Box::new(|&_| true), vec![], None)
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76 };
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77
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78 let filesystem_time_at_status_start =
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79 filesystem_now(&root_dir).ok().map(TruncatedTimestamp::from);
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80
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81 // If the repository is under the current directory, prefer using a
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82 // relative path, so the kernel needs to traverse fewer directory in every
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83 // call to `read_dir` or `symlink_metadata`.
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84 // This is effective in the common case where the current directory is the
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85 // repository root.
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86
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87 // TODO: Better yet would be to use libc functions like `openat` and
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88 // `fstatat` to remove such repeated traversals entirely, but the standard
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89 // library does not provide APIs based on those.
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90 // Maybe with a crate like https://crates.io/crates/openat instead?
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91 let root_dir = if let Some(relative) = std::env::current_dir()
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92 .ok()
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93 .and_then(|cwd| root_dir.strip_prefix(cwd).ok())
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94 {
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95 relative
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96 } else {
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97 &root_dir
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98 };
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99
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100 let outcome = DirstateStatus {
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101 filesystem_time_at_status_start,
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102 ..Default::default()
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103 };
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104 let common = StatusCommon {
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105 dmap,
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106 options,
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107 matcher,
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108 ignore_fn,
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109 outcome: Mutex::new(outcome),
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110 ignore_patterns_have_changed: patterns_changed,
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111 new_cachable_directories: Default::default(),
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112 outated_cached_directories: Default::default(),
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113 filesystem_time_at_status_start,
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114 };
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115 let is_at_repo_root = true;
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116 let hg_path = &BorrowedPath::OnDisk(HgPath::new(""));
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117 let has_ignored_ancestor = false;
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118 let root_cached_mtime = None;
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119 let root_dir_metadata = None;
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120 // If the path we have for the repository root is a symlink, do follow it.
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121 // (As opposed to symlinks within the working directory which are not
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122 // followed, using `std::fs::symlink_metadata`.)
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123 common.traverse_fs_directory_and_dirstate(
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124 has_ignored_ancestor,
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125 dmap.root.as_ref(),
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126 hg_path,
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127 &root_dir,
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128 root_dir_metadata,
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129 root_cached_mtime,
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130 is_at_repo_root,
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131 )?;
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132 let mut outcome = common.outcome.into_inner().unwrap();
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133 let new_cachable = common.new_cachable_directories.into_inner().unwrap();
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134 let outdated = common.outated_cached_directories.into_inner().unwrap();
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135
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136 outcome.dirty = common.ignore_patterns_have_changed == Some(true)
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137 || !outdated.is_empty()
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138 || !new_cachable.is_empty();
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139
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140 // Remove outdated mtimes before adding new mtimes, in case a given
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141 // directory is both
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142 for path in &outdated {
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143 dmap.clear_cached_mtime(path)?;
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144 }
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145 for (path, mtime) in &new_cachable {
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146 let node = dmap.get_or_insert(path)?;
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147 match &node.data {
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148 NodeData::Entry(_) => {} // Don’t overwrite an entry
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149 NodeData::CachedDirectory { .. } | NodeData::None => {
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150 node.data = NodeData::CachedDirectory { mtime: *mtime }
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151 }
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152 }
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153 }
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154
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155 Ok((outcome, warnings))
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156 }
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157
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158 /// Bag of random things needed by various parts of the algorithm. Reduces the
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159 /// number of parameters passed to functions.
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160 struct StatusCommon<'a, 'tree, 'on_disk: 'tree> {
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161 dmap: &'tree DirstateMap<'on_disk>,
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162 options: StatusOptions,
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163 matcher: &'a (dyn Matcher + Sync),
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164 ignore_fn: IgnoreFnType<'a>,
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165 outcome: Mutex<DirstateStatus<'on_disk>>,
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166 new_cachable_directories:
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167 Mutex<Vec<(Cow<'on_disk, HgPath>, TruncatedTimestamp)>>,
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168 outated_cached_directories: Mutex<Vec<Cow<'on_disk, HgPath>>>,
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169
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170 /// Whether ignore files like `.hgignore` have changed since the previous
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171 /// time a `status()` call wrote their hash to the dirstate. `None` means
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172 /// we don’t know as this run doesn’t list either ignored or uknown files
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173 /// and therefore isn’t reading `.hgignore`.
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174 ignore_patterns_have_changed: Option<bool>,
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175
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176 /// The current time at the start of the `status()` algorithm, as measured
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177 /// and possibly truncated by the filesystem.
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178 filesystem_time_at_status_start: Option<TruncatedTimestamp>,
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179 }
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180
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181 enum Outcome {
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182 Modified,
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183 Added,
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184 Removed,
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185 Deleted,
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186 Clean,
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187 Ignored,
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188 Unknown,
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189 Unsure,
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190 }
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191
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192 impl<'a, 'tree, 'on_disk> StatusCommon<'a, 'tree, 'on_disk> {
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193 fn push_outcome(
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194 &self,
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195 which: Outcome,
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196 dirstate_node: &NodeRef<'tree, 'on_disk>,
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197 ) -> Result<(), DirstateV2ParseError> {
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198 let path = dirstate_node
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199 .full_path_borrowed(self.dmap.on_disk)?
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200 .detach_from_tree();
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201 let copy_source = if self.options.list_copies {
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202 dirstate_node
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203 .copy_source_borrowed(self.dmap.on_disk)?
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204 .map(|source| source.detach_from_tree())
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205 } else {
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206 None
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207 };
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208 self.push_outcome_common(which, path, copy_source);
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209 Ok(())
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210 }
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211
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212 fn push_outcome_without_copy_source(
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213 &self,
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214 which: Outcome,
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215 path: &BorrowedPath<'_, 'on_disk>,
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216 ) {
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217 self.push_outcome_common(which, path.detach_from_tree(), None)
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218 }
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219
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220 fn push_outcome_common(
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221 &self,
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222 which: Outcome,
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223 path: HgPathCow<'on_disk>,
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224 copy_source: Option<HgPathCow<'on_disk>>,
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225 ) {
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226 let mut outcome = self.outcome.lock().unwrap();
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227 let vec = match which {
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228 Outcome::Modified => &mut outcome.modified,
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229 Outcome::Added => &mut outcome.added,
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230 Outcome::Removed => &mut outcome.removed,
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231 Outcome::Deleted => &mut outcome.deleted,
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232 Outcome::Clean => &mut outcome.clean,
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233 Outcome::Ignored => &mut outcome.ignored,
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234 Outcome::Unknown => &mut outcome.unknown,
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235 Outcome::Unsure => &mut outcome.unsure,
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236 };
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237 vec.push(StatusPath { path, copy_source });
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238 }
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239
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240 fn read_dir(
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241 &self,
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242 hg_path: &HgPath,
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243 fs_path: &Path,
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244 is_at_repo_root: bool,
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245 ) -> Result<Vec<DirEntry>, ()> {
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246 DirEntry::read_dir(fs_path, is_at_repo_root)
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247 .map_err(|error| self.io_error(error, hg_path))
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248 }
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249
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250 fn io_error(&self, error: std::io::Error, hg_path: &HgPath) {
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251 let errno = error.raw_os_error().expect("expected real OS error");
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252 self.outcome
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253 .lock()
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254 .unwrap()
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255 .bad
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256 .push((hg_path.to_owned().into(), BadMatch::OsError(errno)))
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257 }
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258
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259 fn check_for_outdated_directory_cache(
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260 &self,
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261 dirstate_node: &NodeRef<'tree, 'on_disk>,
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262 ) -> Result<(), DirstateV2ParseError> {
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263 if self.ignore_patterns_have_changed == Some(true)
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264 && dirstate_node.cached_directory_mtime()?.is_some()
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265 {
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266 self.outated_cached_directories.lock().unwrap().push(
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267 dirstate_node
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268 .full_path_borrowed(self.dmap.on_disk)?
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269 .detach_from_tree(),
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270 )
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271 }
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272 Ok(())
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273 }
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274
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275 /// If this returns true, we can get accurate results by only using
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276 /// `symlink_metadata` for child nodes that exist in the dirstate and don’t
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277 /// need to call `read_dir`.
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278 fn can_skip_fs_readdir(
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279 &self,
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280 directory_metadata: Option<&std::fs::Metadata>,
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281 cached_directory_mtime: Option<TruncatedTimestamp>,
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282 ) -> bool {
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283 if !self.options.list_unknown && !self.options.list_ignored {
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284 // All states that we care about listing have corresponding
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285 // dirstate entries.
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286 // This happens for example with `hg status -mard`.
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287 return true;
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288 }
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289 if !self.options.list_ignored
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290 && self.ignore_patterns_have_changed == Some(false)
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291 {
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292 if let Some(cached_mtime) = cached_directory_mtime {
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293 // The dirstate contains a cached mtime for this directory, set
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294 // by a previous run of the `status` algorithm which found this
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295 // directory eligible for `read_dir` caching.
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296 if let Some(meta) = directory_metadata {
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297 if cached_mtime
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298 .likely_equal_to_mtime_of(meta)
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299 .unwrap_or(false)
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300 {
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301 // The mtime of that directory has not changed
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302 // since then, which means that the results of
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303 // `read_dir` should also be unchanged.
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304 return true;
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305 }
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306 }
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307 }
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diff changeset
308 }
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309 false
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310 }
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311
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312 /// Returns whether all child entries of the filesystem directory have a
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313 /// corresponding dirstate node or are ignored.
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diff changeset
314 fn traverse_fs_directory_and_dirstate(
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315 &self,
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diff changeset
316 has_ignored_ancestor: bool,
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diff changeset
317 dirstate_nodes: ChildNodesRef<'tree, 'on_disk>,
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diff changeset
318 directory_hg_path: &BorrowedPath<'tree, 'on_disk>,
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diff changeset
319 directory_fs_path: &Path,
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320 directory_metadata: Option<&std::fs::Metadata>,
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diff changeset
321 cached_directory_mtime: Option<TruncatedTimestamp>,
47113
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diff changeset
322 is_at_repo_root: bool,
47349
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diff changeset
323 ) -> Result<bool, DirstateV2ParseError> {
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diff changeset
324 if self.can_skip_fs_readdir(directory_metadata, cached_directory_mtime)
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diff changeset
325 {
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diff changeset
326 dirstate_nodes
47338
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diff changeset
327 .par_iter()
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diff changeset
328 .map(|dirstate_node| {
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diff changeset
329 let fs_path = directory_fs_path.join(get_path_from_bytes(
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diff changeset
330 dirstate_node.base_name(self.dmap.on_disk)?.as_bytes(),
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diff changeset
331 ));
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diff changeset
332 match std::fs::symlink_metadata(&fs_path) {
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333 Ok(fs_metadata) => self.traverse_fs_and_dirstate(
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diff changeset
334 &fs_path,
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diff changeset
335 &fs_metadata,
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diff changeset
336 dirstate_node,
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diff changeset
337 has_ignored_ancestor,
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diff changeset
338 ),
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diff changeset
339 Err(e) if e.kind() == std::io::ErrorKind::NotFound => {
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diff changeset
340 self.traverse_dirstate_only(dirstate_node)
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341 }
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diff changeset
342 Err(error) => {
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diff changeset
343 let hg_path =
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344 dirstate_node.full_path(self.dmap.on_disk)?;
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diff changeset
345 Ok(self.io_error(error, hg_path))
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346 }
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347 }
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diff changeset
348 })
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diff changeset
349 .collect::<Result<_, _>>()?;
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350
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351 // We don’t know, so conservatively say this isn’t the case
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352 let children_all_have_dirstate_node_or_are_ignored = false;
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353
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354 return Ok(children_all_have_dirstate_node_or_are_ignored);
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355 }
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356
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357 let mut fs_entries = if let Ok(entries) = self.read_dir(
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358 directory_hg_path,
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359 directory_fs_path,
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360 is_at_repo_root,
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361 ) {
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362 entries
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363 } else {
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364 // Treat an unreadable directory (typically because of insufficient
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365 // permissions) like an empty directory. `self.read_dir` has
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366 // already called `self.io_error` so a warning will be emitted.
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367 Vec::new()
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368 };
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369
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370 // `merge_join_by` requires both its input iterators to be sorted:
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371
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372 let dirstate_nodes = dirstate_nodes.sorted();
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373 // `sort_unstable_by_key` doesn’t allow keys borrowing from the value:
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374 // https://github.com/rust-lang/rust/issues/34162
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375 fs_entries.sort_unstable_by(|e1, e2| e1.base_name.cmp(&e2.base_name));
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diff changeset
376
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377 // Propagate here any error that would happen inside the comparison
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378 // callback below
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379 for dirstate_node in &dirstate_nodes {
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380 dirstate_node.base_name(self.dmap.on_disk)?;
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381 }
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382 itertools::merge_join_by(
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383 dirstate_nodes,
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diff changeset
384 &fs_entries,
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385 |dirstate_node, fs_entry| {
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diff changeset
386 // This `unwrap` never panics because we already propagated
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387 // those errors above
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diff changeset
388 dirstate_node
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diff changeset
389 .base_name(self.dmap.on_disk)
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diff changeset
390 .unwrap()
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diff changeset
391 .cmp(&fs_entry.base_name)
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392 },
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393 )
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diff changeset
394 .par_bridge()
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395 .map(|pair| {
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diff changeset
396 use itertools::EitherOrBoth::*;
47475
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397 let has_dirstate_node_or_is_ignored;
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diff changeset
398 match pair {
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399 Both(dirstate_node, fs_entry) => {
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400 self.traverse_fs_and_dirstate(
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diff changeset
401 &fs_entry.full_path,
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
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diff changeset
402 &fs_entry.metadata,
47113
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diff changeset
403 dirstate_node,
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diff changeset
404 has_ignored_ancestor,
47475
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diff changeset
405 )?;
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diff changeset
406 has_dirstate_node_or_is_ignored = true
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diff changeset
407 }
47333
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diff changeset
408 Left(dirstate_node) => {
47475
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diff changeset
409 self.traverse_dirstate_only(dirstate_node)?;
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diff changeset
410 has_dirstate_node_or_is_ignored = true;
47333
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diff changeset
411 }
47475
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diff changeset
412 Right(fs_entry) => {
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diff changeset
413 has_dirstate_node_or_is_ignored = self.traverse_fs_only(
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diff changeset
414 has_ignored_ancestor,
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diff changeset
415 directory_hg_path,
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diff changeset
416 fs_entry,
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diff changeset
417 )
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diff changeset
418 }
47113
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diff changeset
419 }
47475
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diff changeset
420 Ok(has_dirstate_node_or_is_ignored)
47117
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diff changeset
421 })
47475
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diff changeset
422 .try_reduce(|| true, |a, b| Ok(a && b))
47113
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diff changeset
423 }
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Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
424
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
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diff changeset
425 fn traverse_fs_and_dirstate(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
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diff changeset
426 &self,
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
427 fs_path: &Path,
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
428 fs_metadata: &std::fs::Metadata,
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
429 dirstate_node: NodeRef<'tree, 'on_disk>,
47113
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diff changeset
430 has_ignored_ancestor: bool,
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
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diff changeset
431 ) -> Result<(), DirstateV2ParseError> {
47474
c657beacdf2e dirstate-v2: Drop cached read_dir results after .hgignore changes
Simon Sapin <simon.sapin@octobus.net>
parents: 47409
diff changeset
432 self.check_for_outdated_directory_cache(&dirstate_node)?;
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
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diff changeset
433 let hg_path = &dirstate_node.full_path_borrowed(self.dmap.on_disk)?;
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
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diff changeset
434 let file_type = fs_metadata.file_type();
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
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diff changeset
435 let file_or_symlink = file_type.is_file() || file_type.is_symlink();
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
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parents: 47113
diff changeset
436 if !file_or_symlink {
47113
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parents: 47112
diff changeset
437 // If we previously had a file here, it was removed (with
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
438 // `hg rm` or similar) or deleted before it could be
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
439 // replaced by a directory or something else.
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
440 self.mark_removed_or_deleted_if_file(&dirstate_node)?;
47114
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Simon Sapin <simon.sapin@octobus.net>
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diff changeset
441 }
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
442 if file_type.is_dir() {
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
443 if self.options.collect_traversed_dirs {
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
444 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
445 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
446 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
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diff changeset
447 .traversed
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
448 .push(hg_path.detach_from_tree())
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
449 }
47113
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Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
450 let is_ignored = has_ignored_ancestor || (self.ignore_fn)(hg_path);
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
451 let is_at_repo_root = false;
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
452 let children_all_have_dirstate_node_or_are_ignored = self
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
453 .traverse_fs_directory_and_dirstate(
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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parents: 47347
diff changeset
454 is_ignored,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
455 dirstate_node.children(self.dmap.on_disk)?,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
456 hg_path,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
457 fs_path,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
458 Some(fs_metadata),
48193
320de901896a dirstate-v2: Truncate directory mtimes to 31 bits of seconds
Simon Sapin <simon.sapin@octobus.net>
parents: 48192
diff changeset
459 dirstate_node.cached_directory_mtime()?,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
460 is_at_repo_root,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
461 )?;
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
462 self.maybe_save_directory_mtime(
47475
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Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
463 children_all_have_dirstate_node_or_are_ignored,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
464 fs_metadata,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
465 dirstate_node,
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
466 )?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
467 } else {
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
468 if file_or_symlink && self.matcher.matches(hg_path) {
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
469 if let Some(state) = dirstate_node.state()? {
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
470 match state {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
471 EntryState::Added => {
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
472 self.push_outcome(Outcome::Added, &dirstate_node)?
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
473 }
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
474 EntryState::Removed => self
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
475 .push_outcome(Outcome::Removed, &dirstate_node)?,
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
476 EntryState::Merged => self
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
477 .push_outcome(Outcome::Modified, &dirstate_node)?,
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
478 EntryState::Normal => self
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
479 .handle_normal_file(&dirstate_node, fs_metadata)?,
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
480 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
481 } else {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
482 // `node.entry.is_none()` indicates a "directory"
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
483 // node, but the filesystem has a file
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
484 self.mark_unknown_or_ignored(
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
485 has_ignored_ancestor,
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
486 hg_path,
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
487 );
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
488 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
489 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
490
47336
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
491 for child_node in dirstate_node.children(self.dmap.on_disk)?.iter()
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
492 {
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
493 self.traverse_dirstate_only(child_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
494 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
495 }
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
496 Ok(())
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
497 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
498
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
499 fn maybe_save_directory_mtime(
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
500 &self,
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
501 children_all_have_dirstate_node_or_are_ignored: bool,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
502 directory_metadata: &std::fs::Metadata,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
503 dirstate_node: NodeRef<'tree, 'on_disk>,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
504 ) -> Result<(), DirstateV2ParseError> {
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
505 if !children_all_have_dirstate_node_or_are_ignored {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
506 return Ok(());
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
507 }
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
508 // All filesystem directory entries from `read_dir` have a
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
509 // corresponding node in the dirstate, so we can reconstitute the
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
510 // names of those entries without calling `read_dir` again.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
511
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
512 // TODO: use let-else here and below when available:
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
513 // https://github.com/rust-lang/rust/issues/87335
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
514 let status_start = if let Some(status_start) =
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
515 &self.filesystem_time_at_status_start
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
516 {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
517 status_start
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
518 } else {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
519 return Ok(());
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
520 };
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
521
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
522 // Although the Rust standard library’s `SystemTime` type
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
523 // has nanosecond precision, the times reported for a
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
524 // directory’s (or file’s) modified time may have lower
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
525 // resolution based on the filesystem (for example ext3
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
526 // only stores integer seconds), kernel (see
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
527 // https://stackoverflow.com/a/14393315/1162888), etc.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
528 let directory_mtime = if let Ok(option) =
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
529 TruncatedTimestamp::for_reliable_mtime_of(
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
530 directory_metadata,
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
531 status_start,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
532 ) {
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
533 if let Some(directory_mtime) = option {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
534 directory_mtime
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
535 } else {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
536 // The directory was modified too recently,
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
537 // don’t cache its `read_dir` results.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
538 //
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
539 // 1. A change to this directory (direct child was
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
540 // added or removed) cause its mtime to be set
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
541 // (possibly truncated) to `directory_mtime`
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
542 // 2. This `status` algorithm calls `read_dir`
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
543 // 3. An other change is made to the same directory is
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
544 // made so that calling `read_dir` agin would give
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
545 // different results, but soon enough after 1. that
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
546 // the mtime stays the same
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
547 //
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
548 // On a system where the time resolution poor, this
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
549 // scenario is not unlikely if all three steps are caused
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
550 // by the same script.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
551 return Ok(());
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
552 }
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
553 } else {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
554 // OS/libc does not support mtime?
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
555 return Ok(());
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
556 };
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
557 // We’ve observed (through `status_start`) that time has
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
558 // “progressed” since `directory_mtime`, so any further
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
559 // change to this directory is extremely likely to cause a
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
560 // different mtime.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
561 //
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
562 // Having the same mtime again is not entirely impossible
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
563 // since the system clock is not monotonous. It could jump
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
564 // backward to some point before `directory_mtime`, then a
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
565 // directory change could potentially happen during exactly
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
566 // the wrong tick.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
567 //
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
568 // We deem this scenario (unlike the previous one) to be
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
569 // unlikely enough in practice.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
570
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
571 let is_up_to_date =
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
572 if let Some(cached) = dirstate_node.cached_directory_mtime()? {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
573 cached.likely_equal(directory_mtime)
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
574 } else {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
575 false
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
576 };
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
577 if !is_up_to_date {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
578 let hg_path = dirstate_node
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
579 .full_path_borrowed(self.dmap.on_disk)?
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
580 .detach_from_tree();
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
581 self.new_cachable_directories
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
582 .lock()
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
583 .unwrap()
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
584 .push((hg_path, directory_mtime))
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
585 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
586 Ok(())
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
587 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
588
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
589 /// A file with `EntryState::Normal` in the dirstate was found in the
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
590 /// filesystem
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
591 fn handle_normal_file(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
592 &self,
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
593 dirstate_node: &NodeRef<'tree, 'on_disk>,
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
594 fs_metadata: &std::fs::Metadata,
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
595 ) -> Result<(), DirstateV2ParseError> {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
596 // Keep the low 31 bits
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
597 fn truncate_u64(value: u64) -> i32 {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
598 (value & 0x7FFF_FFFF) as i32
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
599 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
600
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
601 let entry = dirstate_node
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
602 .entry()?
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
603 .expect("handle_normal_file called with entry-less node");
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
604 let mode_changed =
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
605 || self.options.check_exec && entry.mode_changed(fs_metadata);
48022
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47475
diff changeset
606 let size = entry.size();
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47475
diff changeset
607 let size_changed = size != truncate_u64(fs_metadata.len());
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47475
diff changeset
608 if size >= 0 && size_changed && fs_metadata.file_type().is_symlink() {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
609 // issue6456: Size returned may be longer due to encryption
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
610 // on EXT-4 fscrypt. TODO maybe only do it on EXT4?
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
611 self.push_outcome(Outcome::Unsure, dirstate_node)?
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
612 } else if dirstate_node.has_copy_source()
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
613 || entry.is_from_other_parent()
48022
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47475
diff changeset
614 || (size >= 0 && (size_changed || mode_changed()))
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
615 {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
616 self.push_outcome(Outcome::Modified, dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
617 } else {
48260
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
618 let mtime_looks_clean;
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
619 if let Some(dirstate_mtime) = entry.truncated_mtime() {
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
620 let fs_mtime = TruncatedTimestamp::for_mtime_of(fs_metadata)
48263
83d0bd45b662 dirstate-v2: actually use sub-second mtime precision
Simon Sapin <simon.sapin@octobus.net>
parents: 48260
diff changeset
621 .expect("OS/libc does not support mtime?");
48391
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
622 // There might be a change in the future if for example the
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
623 // internal clock become off while process run, but this is a
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
624 // case where the issues the user would face
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
625 // would be a lot worse and there is nothing we
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
626 // can really do.
48260
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
627 mtime_looks_clean = fs_mtime.likely_equal(dirstate_mtime)
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
628 } else {
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
629 // No mtime in the dirstate entry
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
630 mtime_looks_clean = false
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
631 };
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
632 if !mtime_looks_clean {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
633 self.push_outcome(Outcome::Unsure, dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
634 } else if self.options.list_clean {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
635 self.push_outcome(Outcome::Clean, dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
636 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
637 }
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
638 Ok(())
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
639 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
640
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
641 /// A node in the dirstate tree has no corresponding filesystem entry
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
642 fn traverse_dirstate_only(
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
643 &self,
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
644 dirstate_node: NodeRef<'tree, 'on_disk>,
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
645 ) -> Result<(), DirstateV2ParseError> {
47474
c657beacdf2e dirstate-v2: Drop cached read_dir results after .hgignore changes
Simon Sapin <simon.sapin@octobus.net>
parents: 47409
diff changeset
646 self.check_for_outdated_directory_cache(&dirstate_node)?;
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
647 self.mark_removed_or_deleted_if_file(&dirstate_node)?;
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
648 dirstate_node
47336
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
649 .children(self.dmap.on_disk)?
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
650 .par_iter()
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
651 .map(|child_node| self.traverse_dirstate_only(child_node))
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
652 .collect()
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
653 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
654
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
655 /// A node in the dirstate tree has no corresponding *file* on the
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
656 /// filesystem
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
657 ///
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
658 /// Does nothing on a "directory" node
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
659 fn mark_removed_or_deleted_if_file(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
660 &self,
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
661 dirstate_node: &NodeRef<'tree, 'on_disk>,
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
662 ) -> Result<(), DirstateV2ParseError> {
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
663 if let Some(state) = dirstate_node.state()? {
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
664 let path = dirstate_node.full_path(self.dmap.on_disk)?;
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
665 if self.matcher.matches(path) {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
666 if let EntryState::Removed = state {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
667 self.push_outcome(Outcome::Removed, dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
668 } else {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
669 self.push_outcome(Outcome::Deleted, &dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
670 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
671 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
672 }
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
673 Ok(())
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
674 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
675
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
676 /// Something in the filesystem has no corresponding dirstate node
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
677 ///
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
678 /// Returns whether that path is ignored
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
679 fn traverse_fs_only(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
680 &self,
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
681 has_ignored_ancestor: bool,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
682 directory_hg_path: &HgPath,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
683 fs_entry: &DirEntry,
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
684 ) -> bool {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
685 let hg_path = directory_hg_path.join(&fs_entry.base_name);
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
686 let file_type = fs_entry.metadata.file_type();
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
687 let file_or_symlink = file_type.is_file() || file_type.is_symlink();
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
688 if file_type.is_dir() {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
689 let is_ignored =
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
690 has_ignored_ancestor || (self.ignore_fn)(&hg_path);
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
691 let traverse_children = if is_ignored {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
692 // Descendants of an ignored directory are all ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
693 self.options.list_ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
694 } else {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
695 // Descendants of an unknown directory may be either unknown or
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
696 // ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
697 self.options.list_unknown || self.options.list_ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
698 };
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
699 if traverse_children {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
700 let is_at_repo_root = false;
47115
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
701 if let Ok(children_fs_entries) = self.read_dir(
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
702 &hg_path,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
703 &fs_entry.full_path,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
704 is_at_repo_root,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
705 ) {
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
706 children_fs_entries.par_iter().for_each(|child_fs_entry| {
47115
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
707 self.traverse_fs_only(
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
708 is_ignored,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
709 &hg_path,
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
710 child_fs_entry,
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
711 );
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
712 })
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
713 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
714 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
715 if self.options.collect_traversed_dirs {
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
716 self.outcome.lock().unwrap().traversed.push(hg_path.into())
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
717 }
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
718 is_ignored
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
719 } else {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
720 if file_or_symlink {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
721 if self.matcher.matches(&hg_path) {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
722 self.mark_unknown_or_ignored(
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
723 has_ignored_ancestor,
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
724 &BorrowedPath::InMemory(&hg_path),
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
725 )
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
726 } else {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
727 // We haven’t computed whether this path is ignored. It
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
728 // might not be, and a future run of status might have a
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
729 // different matcher that matches it. So treat it as not
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
730 // ignored. That is, inhibit readdir caching of the parent
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
731 // directory.
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
732 false
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
733 }
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
734 } else {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
735 // This is neither a directory, a plain file, or a symlink.
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
736 // Treat it like an ignored file.
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
737 true
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
738 }
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
739 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
740 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
741
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
742 /// Returns whether that path is ignored
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
743 fn mark_unknown_or_ignored(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
744 &self,
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
745 has_ignored_ancestor: bool,
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
746 hg_path: &BorrowedPath<'_, 'on_disk>,
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
747 ) -> bool {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
748 let is_ignored = has_ignored_ancestor || (self.ignore_fn)(&hg_path);
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
749 if is_ignored {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
750 if self.options.list_ignored {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
751 self.push_outcome_without_copy_source(
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
752 Outcome::Ignored,
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
753 hg_path,
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
754 )
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
755 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
756 } else {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
757 if self.options.list_unknown {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
758 self.push_outcome_without_copy_source(
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
759 Outcome::Unknown,
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
760 hg_path,
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
761 )
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
762 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
763 }
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
764 is_ignored
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
765 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
766 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
767
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
768 struct DirEntry {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
769 base_name: HgPathBuf,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
770 full_path: PathBuf,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
771 metadata: std::fs::Metadata,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
772 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
773
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
774 impl DirEntry {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
775 /// Returns **unsorted** entries in the given directory, with name and
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
776 /// metadata.
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
777 ///
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
778 /// If a `.hg` sub-directory is encountered:
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
779 ///
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
780 /// * At the repository root, ignore that sub-directory
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
781 /// * Elsewhere, we’re listing the content of a sub-repo. Return an empty
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
782 /// list instead.
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
783 fn read_dir(path: &Path, is_at_repo_root: bool) -> io::Result<Vec<Self>> {
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
784 // `read_dir` returns a "not found" error for the empty path
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
785 let at_cwd = path == Path::new("");
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
786 let read_dir_path = if at_cwd { Path::new(".") } else { path };
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
787 let mut results = Vec::new();
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
788 for entry in read_dir_path.read_dir()? {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
789 let entry = entry?;
48774
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
790 let metadata = match entry.metadata() {
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
791 Ok(v) => v,
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
792 Err(e) => {
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
793 // race with file deletion?
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
794 if e.kind() == std::io::ErrorKind::NotFound {
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
795 continue;
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
796 } else {
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
797 return Err(e);
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
798 }
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
799 }
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
800 };
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
801 let file_name = entry.file_name();
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
802 // FIXME don't do this when cached
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
803 if file_name == ".hg" {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
804 if is_at_repo_root {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
805 // Skip the repo’s own .hg (might be a symlink)
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
806 continue;
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
807 } else if metadata.is_dir() {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
808 // A .hg sub-directory at another location means a subrepo,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
809 // skip it entirely.
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
810 return Ok(Vec::new());
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
811 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
812 }
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
813 let full_path = if at_cwd {
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
814 file_name.clone().into()
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
815 } else {
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
816 entry.path()
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
817 };
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
818 let base_name = get_bytes_from_os_string(file_name).into();
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
819 results.push(DirEntry {
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
820 base_name,
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
821 full_path,
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
822 metadata,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
823 })
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
824 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
825 Ok(results)
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
826 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
827 }
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
828
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
829 /// Return the `mtime` of a temporary file newly-created in the `.hg` directory
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
830 /// of the give repository.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
831 ///
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
832 /// This is similar to `SystemTime::now()`, with the result truncated to the
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
833 /// same time resolution as other files’ modification times. Using `.hg`
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
834 /// instead of the system’s default temporary directory (such as `/tmp`) makes
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
835 /// it more likely the temporary file is in the same disk partition as contents
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
836 /// of the working directory, which can matter since different filesystems may
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
837 /// store timestamps with different resolutions.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
838 ///
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
839 /// This may fail, typically if we lack write permissions. In that case we
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
840 /// should continue the `status()` algoritm anyway and consider the current
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
841 /// date/time to be unknown.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
842 fn filesystem_now(repo_root: &Path) -> Result<SystemTime, io::Error> {
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
843 tempfile::tempfile_in(repo_root.join(".hg"))?
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
844 .metadata()?
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
845 .modified()
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
846 }