Mercurial > public > mercurial-scm > hg-stable

annotate rust/hg-core/src/lib.rs @ 48605:a809f1465a76

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filemerge: set default labels a little earlier By setting the default labels a little earlier, we can rely on them always being set, as far as I can tell. It may actually even be fine to rely on that even if we don't set them earlier, but it makes more sense to me to do it. Differential Revision: https://phab.mercurial-scm.org/D12015
author Martin von Zweigbergk <martinvonz@google.com>
date Thu, 20 Jan 2022 13:43:43 -0800
parents 791f5d5f7a96
children 11c0411bf4e2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // Copyright 2018-2020 Georges Racinet <georges.racinet@octobus.net>
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2 // and Mercurial contributors
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3 //
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4 // This software may be used and distributed according to the terms of the
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5 // GNU General Public License version 2 or any later version.
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6
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7 mod ancestors;
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8 pub mod dagops;
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9 pub mod errors;
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10 pub use ancestors::{AncestorsIterator, MissingAncestors};
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11 pub mod dirstate;
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12 pub mod dirstate_tree;
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13 pub mod discovery;
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14 pub mod exit_codes;
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15 pub mod requirements;
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16 pub mod testing; // unconditionally built, for use from integration tests
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17 pub use dirstate::{
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18 dirs_multiset::{DirsMultiset, DirsMultisetIter},
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19 status::{
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20 BadMatch, BadType, DirstateStatus, HgPathCow, StatusError,
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21 StatusOptions,
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22 },
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23 DirstateEntry, DirstateParents, EntryState,
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24 };
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25 pub mod copy_tracing;
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26 mod filepatterns;
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27 pub mod matchers;
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28 pub mod repo;
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29 pub mod revlog;
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30 pub use revlog::*;
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31 pub mod config;
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32 pub mod lock;
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33 pub mod logging;
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34 pub mod operations;
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35 pub mod revset;
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36 pub mod utils;
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37 pub mod vfs;
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38
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39 use crate::utils::hg_path::{HgPathBuf, HgPathError};
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40 pub use filepatterns::{
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41 parse_pattern_syntax, read_pattern_file, IgnorePattern,
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42 PatternFileWarning, PatternSyntax,
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43 };
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44 use std::collections::HashMap;
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45 use std::fmt;
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46 use twox_hash::RandomXxHashBuilder64;
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47
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48 /// This is a contract between the `micro-timer` crate and us, to expose
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49 /// the `log` crate as `crate::log`.
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50 use log;
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51
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52 pub type LineNumber = usize;
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53
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54 /// Rust's default hasher is too slow because it tries to prevent collision
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55 /// attacks. We are not concerned about those: if an ill-minded person has
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56 /// write access to your repository, you have other issues.
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57 pub type FastHashMap<K, V> = HashMap<K, V, RandomXxHashBuilder64>;
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58
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59 #[derive(Debug, PartialEq)]
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60 pub enum DirstateMapError {
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61 PathNotFound(HgPathBuf),
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62 EmptyPath,
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63 InvalidPath(HgPathError),
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64 }
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65
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66 impl fmt::Display for DirstateMapError {
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67 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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68 match self {
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69 DirstateMapError::PathNotFound(_) => {
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70 f.write_str("expected a value, found none")
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71 }
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72 DirstateMapError::EmptyPath => {
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73 f.write_str("Overflow in dirstate.")
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74 }
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75 DirstateMapError::InvalidPath(path_error) => path_error.fmt(f),
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76 }
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77 }
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78 }
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79
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80 #[derive(Debug, derive_more::From)]
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81 pub enum DirstateError {
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82 Map(DirstateMapError),
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83 Common(errors::HgError),
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84 }
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85
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86 impl fmt::Display for DirstateError {
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87 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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88 match self {
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89 DirstateError::Map(error) => error.fmt(f),
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90 DirstateError::Common(error) => error.fmt(f),
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91 }
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92 }
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93 }
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94
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95 #[derive(Debug, derive_more::From)]
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96 pub enum PatternError {
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97 #[from]
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98 Path(HgPathError),
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99 UnsupportedSyntax(String),
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100 UnsupportedSyntaxInFile(String, String, usize),
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101 TooLong(usize),
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102 #[from]
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103 IO(std::io::Error),
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104 /// Needed a pattern that can be turned into a regex but got one that
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105 /// can't. This should only happen through programmer error.
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106 NonRegexPattern(IgnorePattern),
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107 }
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108
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109 impl fmt::Display for PatternError {
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110 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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111 match self {
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112 PatternError::UnsupportedSyntax(syntax) => {
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113 write!(f, "Unsupported syntax {}", syntax)
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114 }
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115 PatternError::UnsupportedSyntaxInFile(syntax, file_path, line) => {
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116 write!(
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117 f,
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diff changeset
118 "{}:{}: unsupported syntax {}",
d42eea9a0494 rust-filepatterns: improve API and robustness for pattern files parsing
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44329
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119 file_path, line, syntax
d42eea9a0494 rust-filepatterns: improve API and robustness for pattern files parsing
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44329
diff changeset
120 )
d42eea9a0494 rust-filepatterns: improve API and robustness for pattern files parsing
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44329
diff changeset
121 }
d42eea9a0494 rust-filepatterns: improve API and robustness for pattern files parsing
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44329
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122 PatternError::TooLong(size) => {
46512
6c778d20c8c2 rust: replace ToString impls with Display
Simon Sapin <simon.sapin@octobus.net>
parents: 46511
diff changeset
123 write!(f, "matcher pattern is too long ({} bytes)", size)
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d42eea9a0494 rust-filepatterns: improve API and robustness for pattern files parsing
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44329
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124 }
46512
6c778d20c8c2 rust: replace ToString impls with Display
Simon Sapin <simon.sapin@octobus.net>
parents: 46511
diff changeset
125 PatternError::IO(error) => error.fmt(f),
6c778d20c8c2 rust: replace ToString impls with Display
Simon Sapin <simon.sapin@octobus.net>
parents: 46511
diff changeset
126 PatternError::Path(error) => error.fmt(f),
44347
2fe89bec8011 rust-filepatterns: add support for `include` and `subinclude` patterns
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44346
diff changeset
127 PatternError::NonRegexPattern(pattern) => {
46512
6c778d20c8c2 rust: replace ToString impls with Display
Simon Sapin <simon.sapin@octobus.net>
parents: 46511
diff changeset
128 write!(f, "'{:?}' cannot be turned into a regex", pattern)
44347
2fe89bec8011 rust-filepatterns: add support for `include` and `subinclude` patterns
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44346
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129 }
44346
d42eea9a0494 rust-filepatterns: improve API and robustness for pattern files parsing
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parents: 44329
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130 }
42349
e8f3740cc067 rust-filepatterns: add a Rust implementation of pattern-related utils
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42330
diff changeset
131 }
e8f3740cc067 rust-filepatterns: add a Rust implementation of pattern-related utils
Rapha?l Gom?s <rgomes@octobus.net>
parents: 42330
diff changeset
132 }