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annotate rust/hg-core/src/lib.rs @ 46508:776b97179c06

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rust: Remove DirstateParseError and ListDirstateTrackedFilesError Use HgError instead. Differential Revision: https://phab.mercurial-scm.org/D9894
author Simon Sapin <simon.sapin@octobus.net>
date Wed, 27 Jan 2021 14:00:21 +0100
parents 68a15b5a7e58
children 43d63979a75e
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 mod ancestors;
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7 pub mod dagops;
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8 pub mod errors;
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9 pub use ancestors::{AncestorsIterator, LazyAncestors, MissingAncestors};
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10 mod dirstate;
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11 pub mod discovery;
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12 pub mod requirements;
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13 pub mod testing; // unconditionally built, for use from integration tests
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14 pub use dirstate::{
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15 dirs_multiset::{DirsMultiset, DirsMultisetIter},
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16 dirstate_map::DirstateMap,
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17 parsers::{pack_dirstate, parse_dirstate, PARENT_SIZE},
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18 status::{
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19 status, BadMatch, BadType, DirstateStatus, StatusError, StatusOptions,
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20 },
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21 CopyMap, CopyMapIter, DirstateEntry, DirstateParents, EntryState,
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22 StateMap, StateMapIter,
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23 };
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24 pub mod copy_tracing;
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25 mod filepatterns;
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26 pub mod matchers;
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27 pub mod repo;
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28 pub mod revlog;
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29 pub use revlog::*;
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30 pub mod config;
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31 pub mod operations;
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32 pub mod revset;
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33 pub mod utils;
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34
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35 use crate::utils::hg_path::{HgPathBuf, HgPathError};
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36 pub use filepatterns::{
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37 parse_pattern_syntax, read_pattern_file, IgnorePattern,
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38 PatternFileWarning, PatternSyntax,
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39 };
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40 use std::collections::HashMap;
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41 use twox_hash::RandomXxHashBuilder64;
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42
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43 /// This is a contract between the `micro-timer` crate and us, to expose
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44 /// the `log` crate as `crate::log`.
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45 use log;
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46
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47 pub type LineNumber = usize;
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48
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49 /// Rust's default hasher is too slow because it tries to prevent collision
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50 /// attacks. We are not concerned about those: if an ill-minded person has
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51 /// write access to your repository, you have other issues.
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52 pub type FastHashMap<K, V> = HashMap<K, V, RandomXxHashBuilder64>;
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53
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54 #[derive(Debug, PartialEq)]
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55 pub enum DirstateMapError {
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56 PathNotFound(HgPathBuf),
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57 EmptyPath,
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58 InvalidPath(HgPathError),
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59 }
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60
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61 impl ToString for DirstateMapError {
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62 fn to_string(&self) -> String {
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63 match self {
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64 DirstateMapError::PathNotFound(_) => {
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65 "expected a value, found none".to_string()
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66 }
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67 DirstateMapError::EmptyPath => "Overflow in dirstate.".to_string(),
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68 DirstateMapError::InvalidPath(e) => e.to_string(),
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69 }
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70 }
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71 }
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72
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73 #[derive(Debug, derive_more::From)]
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74 pub enum DirstateError {
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75 Map(DirstateMapError),
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76 Common(errors::HgError),
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77 }
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78
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79 #[derive(Debug, derive_more::From)]
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80 pub enum PatternError {
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81 #[from]
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82 Path(HgPathError),
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83 UnsupportedSyntax(String),
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84 UnsupportedSyntaxInFile(String, String, usize),
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85 TooLong(usize),
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86 #[from]
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87 IO(std::io::Error),
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88 /// Needed a pattern that can be turned into a regex but got one that
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89 /// can't. This should only happen through programmer error.
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90 NonRegexPattern(IgnorePattern),
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91 }
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92
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93 impl ToString for PatternError {
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94 fn to_string(&self) -> String {
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95 match self {
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96 PatternError::UnsupportedSyntax(syntax) => {
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97 format!("Unsupported syntax {}", syntax)
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98 }
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99 PatternError::UnsupportedSyntaxInFile(syntax, file_path, line) => {
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100 format!(
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101 "{}:{}: unsupported syntax {}",
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102 file_path, line, syntax
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103 )
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104 }
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105 PatternError::TooLong(size) => {
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106 format!("matcher pattern is too long ({} bytes)", size)
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107 }
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108 PatternError::IO(e) => e.to_string(),
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109 PatternError::Path(e) => e.to_string(),
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110 PatternError::NonRegexPattern(pattern) => {
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111 format!("'{:?}' cannot be turned into a regex", pattern)
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112 }
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113 }
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114 }
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115 }