Mercurial > hg
annotate rust/hg-core/src/dirstate/status.rs @ 46494:d67732a4b58a
branching: merge with stable
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Thu, 11 Feb 2021 20:36:46 -0800 |
parents | 6c778d20c8c2 fb6eca7b8c63 |
children | 3c9ddb1986a9 |
rev | line source |
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1 // status.rs |
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2 // |
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3 // Copyright 2019 Raphaël Gomès <rgomes@octobus.net> |
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4 // |
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5 // This software may be used and distributed according to the terms of the |
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6 // GNU General Public License version 2 or any later version. |
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7 |
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8 //! Rust implementation of dirstate.status (dirstate.py). |
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9 //! It is currently missing a lot of functionality compared to the Python one |
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10 //! and will only be triggered in narrow cases. |
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11 |
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12 #[cfg(feature = "dirstate-tree")] |
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13 use crate::dirstate::dirstate_tree::iter::StatusShortcut; |
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14 #[cfg(not(feature = "dirstate-tree"))] |
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15 use crate::utils::path_auditor::PathAuditor; |
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16 use crate::{ |
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17 dirstate::SIZE_FROM_OTHER_PARENT, |
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18 filepatterns::PatternFileWarning, |
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19 matchers::{get_ignore_function, Matcher, VisitChildrenSet}, |
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20 utils::{ |
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21 files::{find_dirs, HgMetadata}, |
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22 hg_path::{ |
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23 hg_path_to_path_buf, os_string_to_hg_path_buf, HgPath, HgPathBuf, |
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24 HgPathError, |
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25 }, |
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26 }, |
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27 CopyMap, DirstateEntry, DirstateMap, EntryState, FastHashMap, |
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28 PatternError, |
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29 }; |
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30 use lazy_static::lazy_static; |
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31 use micro_timer::timed; |
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32 use rayon::prelude::*; |
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33 use std::{ |
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34 borrow::Cow, |
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35 collections::HashSet, |
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36 fmt, |
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37 fs::{read_dir, DirEntry}, |
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38 io::ErrorKind, |
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39 ops::Deref, |
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40 path::{Path, PathBuf}, |
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41 }; |
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42 |
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43 /// Wrong type of file from a `BadMatch` |
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44 /// Note: a lot of those don't exist on all platforms. |
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45 #[derive(Debug, Copy, Clone)] |
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46 pub enum BadType { |
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47 CharacterDevice, |
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48 BlockDevice, |
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49 FIFO, |
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50 Socket, |
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51 Directory, |
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52 Unknown, |
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53 } |
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54 |
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55 impl fmt::Display for BadType { |
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56 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
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57 f.write_str(match self { |
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58 BadType::CharacterDevice => "character device", |
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59 BadType::BlockDevice => "block device", |
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60 BadType::FIFO => "fifo", |
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61 BadType::Socket => "socket", |
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62 BadType::Directory => "directory", |
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63 BadType::Unknown => "unknown", |
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64 }) |
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65 } |
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66 } |
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67 |
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68 /// Was explicitly matched but cannot be found/accessed |
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69 #[derive(Debug, Copy, Clone)] |
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70 pub enum BadMatch { |
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71 OsError(i32), |
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72 BadType(BadType), |
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73 } |
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74 |
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75 /// Enum used to dispatch new status entries into the right collections. |
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76 /// Is similar to `crate::EntryState`, but represents the transient state of |
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77 /// entries during the lifetime of a command. |
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78 #[derive(Debug, Copy, Clone)] |
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79 pub enum Dispatch { |
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80 Unsure, |
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81 Modified, |
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82 Added, |
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83 Removed, |
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84 Deleted, |
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85 Clean, |
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86 Unknown, |
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87 Ignored, |
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88 /// Empty dispatch, the file is not worth listing |
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89 None, |
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90 /// Was explicitly matched but cannot be found/accessed |
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91 Bad(BadMatch), |
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92 Directory { |
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93 /// True if the directory used to be a file in the dmap so we can say |
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94 /// that it's been removed. |
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95 was_file: bool, |
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96 }, |
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97 } |
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98 |
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99 type IoResult<T> = std::io::Result<T>; |
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100 |
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101 /// `Box<dyn Trait>` is syntactic sugar for `Box<dyn Trait, 'static>`, so add |
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102 /// an explicit lifetime here to not fight `'static` bounds "out of nowhere". |
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103 type IgnoreFnType<'a> = Box<dyn for<'r> Fn(&'r HgPath) -> bool + Sync + 'a>; |
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104 |
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105 /// We have a good mix of owned (from directory traversal) and borrowed (from |
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106 /// the dirstate/explicit) paths, this comes up a lot. |
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107 pub type HgPathCow<'a> = Cow<'a, HgPath>; |
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108 |
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109 /// A path with its computed ``Dispatch`` information |
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110 type DispatchedPath<'a> = (HgPathCow<'a>, Dispatch); |
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111 |
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112 /// The conversion from `HgPath` to a real fs path failed. |
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113 /// `22` is the error code for "Invalid argument" |
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114 const INVALID_PATH_DISPATCH: Dispatch = Dispatch::Bad(BadMatch::OsError(22)); |
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115 |
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116 /// Dates and times that are outside the 31-bit signed range are compared |
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117 /// modulo 2^31. This should prevent hg from behaving badly with very large |
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118 /// files or corrupt dates while still having a high probability of detecting |
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119 /// changes. (issue2608) |
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120 /// TODO I haven't found a way of having `b` be `Into<i32>`, since `From<u64>` |
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121 /// is not defined for `i32`, and there is no `As` trait. This forces the |
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122 /// caller to cast `b` as `i32`. |
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123 fn mod_compare(a: i32, b: i32) -> bool { |
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124 a & i32::max_value() != b & i32::max_value() |
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125 } |
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126 |
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127 /// Return a sorted list containing information about the entries |
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128 /// in the directory. |
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129 /// |
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130 /// * `skip_dot_hg` - Return an empty vec if `path` contains a `.hg` directory |
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131 fn list_directory( |
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132 path: impl AsRef<Path>, |
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133 skip_dot_hg: bool, |
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134 ) -> std::io::Result<Vec<(HgPathBuf, DirEntry)>> { |
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135 let mut results = vec![]; |
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136 let entries = read_dir(path.as_ref())?; |
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137 |
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138 for entry in entries { |
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139 let entry = entry?; |
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140 let filename = os_string_to_hg_path_buf(entry.file_name())?; |
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141 let file_type = entry.file_type()?; |
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142 if skip_dot_hg && filename.as_bytes() == b".hg" && file_type.is_dir() { |
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143 return Ok(vec![]); |
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144 } else { |
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145 results.push((filename, entry)) |
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146 } |
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147 } |
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148 |
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149 results.sort_unstable_by_key(|e| e.0.clone()); |
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150 Ok(results) |
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151 } |
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152 |
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153 /// The file corresponding to the dirstate entry was found on the filesystem. |
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154 fn dispatch_found( |
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155 filename: impl AsRef<HgPath>, |
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156 entry: DirstateEntry, |
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157 metadata: HgMetadata, |
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158 copy_map: &CopyMap, |
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159 options: StatusOptions, |
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160 ) -> Dispatch { |
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161 let DirstateEntry { |
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162 state, |
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163 mode, |
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164 mtime, |
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165 size, |
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166 } = entry; |
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167 |
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168 let HgMetadata { |
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169 st_mode, |
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170 st_size, |
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171 st_mtime, |
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172 .. |
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173 } = metadata; |
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174 |
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175 match state { |
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176 EntryState::Normal => { |
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177 let size_changed = mod_compare(size, st_size as i32); |
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178 let mode_changed = |
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179 (mode ^ st_mode as i32) & 0o100 != 0o000 && options.check_exec; |
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180 let metadata_changed = size >= 0 && (size_changed || mode_changed); |
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181 let other_parent = size == SIZE_FROM_OTHER_PARENT; |
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182 |
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183 if metadata_changed |
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184 || other_parent |
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185 || copy_map.contains_key(filename.as_ref()) |
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186 { |
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187 Dispatch::Modified |
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188 } else if mod_compare(mtime, st_mtime as i32) |
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189 || st_mtime == options.last_normal_time |
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190 { |
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191 // the file may have just been marked as normal and |
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192 // it may have changed in the same second without |
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193 // changing its size. This can happen if we quickly |
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194 // do multiple commits. Force lookup, so we don't |
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195 // miss such a racy file change. |
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196 Dispatch::Unsure |
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197 } else if options.list_clean { |
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198 Dispatch::Clean |
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199 } else { |
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200 Dispatch::None |
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201 } |
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202 } |
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203 EntryState::Merged => Dispatch::Modified, |
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204 EntryState::Added => Dispatch::Added, |
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205 EntryState::Removed => Dispatch::Removed, |
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206 EntryState::Unknown => Dispatch::Unknown, |
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207 } |
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208 } |
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209 |
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210 /// The file corresponding to this Dirstate entry is missing. |
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211 fn dispatch_missing(state: EntryState) -> Dispatch { |
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212 match state { |
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213 // File was removed from the filesystem during commands |
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214 EntryState::Normal | EntryState::Merged | EntryState::Added => { |
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215 Dispatch::Deleted |
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216 } |
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217 // File was removed, everything is normal |
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218 EntryState::Removed => Dispatch::Removed, |
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219 // File is unknown to Mercurial, everything is normal |
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220 EntryState::Unknown => Dispatch::Unknown, |
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221 } |
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222 } |
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223 |
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224 fn dispatch_os_error(e: &std::io::Error) -> Dispatch { |
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225 Dispatch::Bad(BadMatch::OsError( |
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226 e.raw_os_error().expect("expected real OS error"), |
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227 )) |
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228 } |
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229 |
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230 lazy_static! { |
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231 static ref DEFAULT_WORK: HashSet<&'static HgPath> = { |
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232 let mut h = HashSet::new(); |
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233 h.insert(HgPath::new(b"")); |
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234 h |
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235 }; |
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236 } |
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237 |
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238 #[derive(Debug, Copy, Clone)] |
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239 pub struct StatusOptions { |
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240 /// Remember the most recent modification timeslot for status, to make |
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241 /// sure we won't miss future size-preserving file content modifications |
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242 /// that happen within the same timeslot. |
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243 pub last_normal_time: i64, |
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244 /// Whether we are on a filesystem with UNIX-like exec flags |
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245 pub check_exec: bool, |
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246 pub list_clean: bool, |
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247 pub list_unknown: bool, |
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248 pub list_ignored: bool, |
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249 /// Whether to collect traversed dirs for applying a callback later. |
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250 /// Used by `hg purge` for example. |
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251 pub collect_traversed_dirs: bool, |
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252 } |
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253 |
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254 #[derive(Debug)] |
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255 pub struct DirstateStatus<'a> { |
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256 pub modified: Vec<HgPathCow<'a>>, |
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257 pub added: Vec<HgPathCow<'a>>, |
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258 pub removed: Vec<HgPathCow<'a>>, |
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259 pub deleted: Vec<HgPathCow<'a>>, |
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260 pub clean: Vec<HgPathCow<'a>>, |
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261 pub ignored: Vec<HgPathCow<'a>>, |
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262 pub unknown: Vec<HgPathCow<'a>>, |
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263 pub bad: Vec<(HgPathCow<'a>, BadMatch)>, |
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264 /// Only filled if `collect_traversed_dirs` is `true` |
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265 pub traversed: Vec<HgPathBuf>, |
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266 } |
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267 |
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268 #[derive(Debug, derive_more::From)] |
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269 pub enum StatusError { |
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270 /// Generic IO error |
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271 IO(std::io::Error), |
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272 /// An invalid path that cannot be represented in Mercurial was found |
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273 Path(HgPathError), |
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274 /// An invalid "ignore" pattern was found |
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275 Pattern(PatternError), |
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276 } |
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277 |
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278 pub type StatusResult<T> = Result<T, StatusError>; |
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279 |
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280 impl fmt::Display for StatusError { |
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281 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
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282 match self { |
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283 StatusError::IO(error) => error.fmt(f), |
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284 StatusError::Path(error) => error.fmt(f), |
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285 StatusError::Pattern(error) => error.fmt(f), |
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286 } |
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287 } |
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288 } |
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289 |
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290 /// Gives information about which files are changed in the working directory |
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291 /// and how, compared to the revision we're based on |
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292 pub struct Status<'a, M: Matcher + Sync> { |
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293 dmap: &'a DirstateMap, |
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294 pub(crate) matcher: &'a M, |
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295 root_dir: PathBuf, |
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296 pub(crate) options: StatusOptions, |
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297 ignore_fn: IgnoreFnType<'a>, |
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298 } |
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299 |
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300 impl<'a, M> Status<'a, M> |
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301 where |
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302 M: Matcher + Sync, |
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303 { |
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304 pub fn new( |
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305 dmap: &'a DirstateMap, |
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306 matcher: &'a M, |
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307 root_dir: PathBuf, |
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308 ignore_files: Vec<PathBuf>, |
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309 options: StatusOptions, |
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310 ) -> StatusResult<(Self, Vec<PatternFileWarning>)> { |
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311 // Needs to outlive `dir_ignore_fn` since it's captured. |
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312 |
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313 let (ignore_fn, warnings): (IgnoreFnType, _) = |
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314 if options.list_ignored || options.list_unknown { |
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315 get_ignore_function(ignore_files, &root_dir)? |
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316 } else { |
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317 (Box::new(|&_| true), vec![]) |
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318 }; |
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319 |
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320 Ok(( |
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321 Self { |
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322 dmap, |
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323 matcher, |
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324 root_dir, |
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325 options, |
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326 ignore_fn, |
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327 }, |
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328 warnings, |
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329 )) |
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330 } |
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331 |
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332 /// Is the path ignored? |
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333 pub fn is_ignored(&self, path: impl AsRef<HgPath>) -> bool { |
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334 (self.ignore_fn)(path.as_ref()) |
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335 } |
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336 |
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337 /// Is the path or one of its ancestors ignored? |
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338 pub fn dir_ignore(&self, dir: impl AsRef<HgPath>) -> bool { |
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339 // Only involve ignore mechanism if we're listing unknowns or ignored. |
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340 if self.options.list_ignored || self.options.list_unknown { |
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341 if self.is_ignored(&dir) { |
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342 true |
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343 } else { |
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344 for p in find_dirs(dir.as_ref()) { |
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345 if self.is_ignored(p) { |
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346 return true; |
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347 } |
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348 } |
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349 false |
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350 } |
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351 } else { |
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352 true |
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353 } |
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354 } |
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355 |
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356 /// Get stat data about the files explicitly specified by the matcher. |
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357 /// Returns a tuple of the directories that need to be traversed and the |
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358 /// files with their corresponding `Dispatch`. |
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359 /// TODO subrepos |
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360 #[timed] |
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361 pub fn walk_explicit( |
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362 &self, |
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363 traversed_sender: crossbeam_channel::Sender<HgPathBuf>, |
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364 ) -> (Vec<DispatchedPath<'a>>, Vec<DispatchedPath<'a>>) { |
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365 self.matcher |
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366 .file_set() |
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367 .unwrap_or(&DEFAULT_WORK) |
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368 .par_iter() |
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369 .flat_map(|&filename| -> Option<_> { |
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370 // TODO normalization |
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371 let normalized = filename; |
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372 |
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373 let buf = match hg_path_to_path_buf(normalized) { |
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374 Ok(x) => x, |
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375 Err(_) => { |
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376 return Some(( |
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377 Cow::Borrowed(normalized), |
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378 INVALID_PATH_DISPATCH, |
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379 )) |
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380 } |
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381 }; |
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382 let target = self.root_dir.join(buf); |
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383 let st = target.symlink_metadata(); |
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384 let in_dmap = self.dmap.get(normalized); |
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385 match st { |
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386 Ok(meta) => { |
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387 let file_type = meta.file_type(); |
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388 return if file_type.is_file() || file_type.is_symlink() |
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389 { |
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390 if let Some(entry) = in_dmap { |
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391 return Some(( |
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392 Cow::Borrowed(normalized), |
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393 dispatch_found( |
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394 &normalized, |
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395 *entry, |
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396 HgMetadata::from_metadata(meta), |
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397 &self.dmap.copy_map, |
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398 self.options, |
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399 ), |
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400 )); |
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401 } |
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402 Some(( |
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403 Cow::Borrowed(normalized), |
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404 Dispatch::Unknown, |
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405 )) |
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406 } else if file_type.is_dir() { |
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407 if self.options.collect_traversed_dirs { |
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408 traversed_sender |
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409 .send(normalized.to_owned()) |
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410 .expect("receiver should outlive sender"); |
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411 } |
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412 Some(( |
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413 Cow::Borrowed(normalized), |
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414 Dispatch::Directory { |
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415 was_file: in_dmap.is_some(), |
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416 }, |
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417 )) |
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418 } else { |
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419 Some(( |
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420 Cow::Borrowed(normalized), |
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421 Dispatch::Bad(BadMatch::BadType( |
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422 // TODO do more than unknown |
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423 // Support for all `BadType` variant |
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424 // varies greatly between platforms. |
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425 // So far, no tests check the type and |
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426 // this should be good enough for most |
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427 // users. |
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428 BadType::Unknown, |
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429 )), |
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430 )) |
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431 }; |
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432 } |
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433 Err(_) => { |
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434 if let Some(entry) = in_dmap { |
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435 return Some(( |
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436 Cow::Borrowed(normalized), |
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437 dispatch_missing(entry.state), |
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438 )); |
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439 } |
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440 } |
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441 }; |
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442 None |
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443 }) |
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444 .partition(|(_, dispatch)| match dispatch { |
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445 Dispatch::Directory { .. } => true, |
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446 _ => false, |
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447 }) |
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448 } |
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449 |
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450 /// Walk the working directory recursively to look for changes compared to |
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451 /// the current `DirstateMap`. |
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452 /// |
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453 /// This takes a mutable reference to the results to account for the |
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454 /// `extend` in timings |
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455 #[timed] |
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456 pub fn traverse( |
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457 &self, |
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458 path: impl AsRef<HgPath>, |
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459 old_results: &FastHashMap<HgPathCow<'a>, Dispatch>, |
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460 results: &mut Vec<DispatchedPath<'a>>, |
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461 traversed_sender: crossbeam_channel::Sender<HgPathBuf>, |
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462 ) { |
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463 // The traversal is done in parallel, so use a channel to gather |
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464 // entries. `crossbeam_channel::Sender` is `Sync`, while `mpsc::Sender` |
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465 // is not. |
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466 let (files_transmitter, files_receiver) = |
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467 crossbeam_channel::unbounded(); |
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468 |
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469 self.traverse_dir( |
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470 &files_transmitter, |
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471 path, |
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472 &old_results, |
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473 traversed_sender, |
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474 ); |
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475 |
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476 // Disconnect the channel so the receiver stops waiting |
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477 drop(files_transmitter); |
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478 |
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479 let new_results = files_receiver |
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480 .into_iter() |
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481 .par_bridge() |
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482 .map(|(f, d)| (Cow::Owned(f), d)); |
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483 |
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484 results.par_extend(new_results); |
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485 } |
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486 |
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487 /// Dispatch a single entry (file, folder, symlink...) found during |
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488 /// `traverse`. If the entry is a folder that needs to be traversed, it |
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489 /// will be handled in a separate thread. |
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490 fn handle_traversed_entry<'b>( |
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491 &'a self, |
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492 scope: &rayon::Scope<'b>, |
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493 files_sender: &'b crossbeam_channel::Sender<(HgPathBuf, Dispatch)>, |
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494 old_results: &'a FastHashMap<Cow<HgPath>, Dispatch>, |
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495 filename: HgPathBuf, |
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496 dir_entry: DirEntry, |
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497 traversed_sender: crossbeam_channel::Sender<HgPathBuf>, |
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498 ) -> IoResult<()> |
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499 where |
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500 'a: 'b, |
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501 { |
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502 let file_type = dir_entry.file_type()?; |
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503 let entry_option = self.dmap.get(&filename); |
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504 |
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505 if filename.as_bytes() == b".hg" { |
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506 // Could be a directory or a symlink |
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507 return Ok(()); |
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508 } |
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509 |
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510 if file_type.is_dir() { |
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511 self.handle_traversed_dir( |
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512 scope, |
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513 files_sender, |
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514 old_results, |
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515 entry_option, |
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516 filename, |
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517 traversed_sender, |
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518 ); |
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519 } else if file_type.is_file() || file_type.is_symlink() { |
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520 if let Some(entry) = entry_option { |
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521 if self.matcher.matches_everything() |
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522 || self.matcher.matches(&filename) |
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523 { |
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524 let metadata = dir_entry.metadata()?; |
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525 files_sender |
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526 .send(( |
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527 filename.to_owned(), |
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528 dispatch_found( |
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529 &filename, |
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530 *entry, |
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531 HgMetadata::from_metadata(metadata), |
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532 &self.dmap.copy_map, |
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533 self.options, |
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534 ), |
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535 )) |
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536 .unwrap(); |
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537 } |
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538 } else if (self.matcher.matches_everything() |
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539 || self.matcher.matches(&filename)) |
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540 && !self.is_ignored(&filename) |
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541 { |
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542 if (self.options.list_ignored |
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543 || self.matcher.exact_match(&filename)) |
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544 && self.dir_ignore(&filename) |
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545 { |
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546 if self.options.list_ignored { |
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547 files_sender |
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548 .send((filename.to_owned(), Dispatch::Ignored)) |
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549 .unwrap(); |
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550 } |
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551 } else if self.options.list_unknown { |
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552 files_sender |
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553 .send((filename.to_owned(), Dispatch::Unknown)) |
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554 .unwrap(); |
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555 } |
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556 } else if self.is_ignored(&filename) && self.options.list_ignored { |
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557 files_sender |
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558 .send((filename.to_owned(), Dispatch::Ignored)) |
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559 .unwrap(); |
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560 } |
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561 } else if let Some(entry) = entry_option { |
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562 // Used to be a file or a folder, now something else. |
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563 if self.matcher.matches_everything() |
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564 || self.matcher.matches(&filename) |
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565 { |
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566 files_sender |
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567 .send((filename.to_owned(), dispatch_missing(entry.state))) |
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568 .unwrap(); |
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569 } |
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570 } |
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571 |
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572 Ok(()) |
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573 } |
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574 |
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575 /// A directory was found in the filesystem and needs to be traversed |
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576 fn handle_traversed_dir<'b>( |
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577 &'a self, |
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578 scope: &rayon::Scope<'b>, |
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579 files_sender: &'b crossbeam_channel::Sender<(HgPathBuf, Dispatch)>, |
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580 old_results: &'a FastHashMap<Cow<HgPath>, Dispatch>, |
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581 entry_option: Option<&'a DirstateEntry>, |
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582 directory: HgPathBuf, |
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583 traversed_sender: crossbeam_channel::Sender<HgPathBuf>, |
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584 ) where |
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585 'a: 'b, |
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586 { |
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587 scope.spawn(move |_| { |
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588 // Nested `if` until `rust-lang/rust#53668` is stable |
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589 if let Some(entry) = entry_option { |
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590 // Used to be a file, is now a folder |
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591 if self.matcher.matches_everything() |
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592 || self.matcher.matches(&directory) |
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593 { |
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594 files_sender |
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595 .send(( |
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596 directory.to_owned(), |
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597 dispatch_missing(entry.state), |
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598 )) |
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599 .unwrap(); |
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600 } |
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601 } |
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602 // Do we need to traverse it? |
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603 if !self.is_ignored(&directory) || self.options.list_ignored { |
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604 self.traverse_dir( |
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605 files_sender, |
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606 directory, |
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607 &old_results, |
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608 traversed_sender, |
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609 ) |
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610 } |
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611 }); |
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612 } |
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613 |
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614 /// Decides whether the directory needs to be listed, and if so handles the |
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615 /// entries in a separate thread. |
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616 fn traverse_dir( |
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617 &self, |
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618 files_sender: &crossbeam_channel::Sender<(HgPathBuf, Dispatch)>, |
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619 directory: impl AsRef<HgPath>, |
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620 old_results: &FastHashMap<Cow<HgPath>, Dispatch>, |
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621 traversed_sender: crossbeam_channel::Sender<HgPathBuf>, |
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622 ) { |
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623 let directory = directory.as_ref(); |
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624 |
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625 if self.options.collect_traversed_dirs { |
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626 traversed_sender |
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627 .send(directory.to_owned()) |
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628 .expect("receiver should outlive sender"); |
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629 } |
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630 |
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631 let visit_entries = match self.matcher.visit_children_set(directory) { |
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632 VisitChildrenSet::Empty => return, |
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633 VisitChildrenSet::This | VisitChildrenSet::Recursive => None, |
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634 VisitChildrenSet::Set(set) => Some(set), |
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635 }; |
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636 let buf = match hg_path_to_path_buf(directory) { |
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637 Ok(b) => b, |
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638 Err(_) => { |
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639 files_sender |
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640 .send((directory.to_owned(), INVALID_PATH_DISPATCH)) |
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641 .expect("receiver should outlive sender"); |
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642 return; |
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643 } |
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644 }; |
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645 let dir_path = self.root_dir.join(buf); |
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646 |
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647 let skip_dot_hg = !directory.as_bytes().is_empty(); |
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648 let entries = match list_directory(dir_path, skip_dot_hg) { |
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649 Err(e) => { |
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650 files_sender |
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651 .send((directory.to_owned(), dispatch_os_error(&e))) |
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652 .expect("receiver should outlive sender"); |
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653 return; |
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654 } |
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655 Ok(entries) => entries, |
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656 }; |
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657 |
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658 rayon::scope(|scope| { |
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659 for (filename, dir_entry) in entries { |
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660 if let Some(ref set) = visit_entries { |
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661 if !set.contains(filename.deref()) { |
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662 continue; |
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663 } |
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664 } |
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665 // TODO normalize |
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666 let filename = if directory.is_empty() { |
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667 filename.to_owned() |
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668 } else { |
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669 directory.join(&filename) |
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670 }; |
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671 |
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672 if !old_results.contains_key(filename.deref()) { |
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673 match self.handle_traversed_entry( |
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674 scope, |
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675 files_sender, |
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676 old_results, |
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677 filename, |
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678 dir_entry, |
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679 traversed_sender.clone(), |
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680 ) { |
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681 Err(e) => { |
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682 files_sender |
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683 .send(( |
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684 directory.to_owned(), |
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685 dispatch_os_error(&e), |
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686 )) |
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687 .expect("receiver should outlive sender"); |
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688 } |
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689 Ok(_) => {} |
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690 } |
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691 } |
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692 } |
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693 }) |
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694 } |
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695 |
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696 /// Add the files in the dirstate to the results. |
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697 /// |
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698 /// This takes a mutable reference to the results to account for the |
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699 /// `extend` in timings |
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700 #[cfg(feature = "dirstate-tree")] |
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701 #[timed] |
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702 pub fn extend_from_dmap(&self, results: &mut Vec<DispatchedPath<'a>>) { |
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703 results.par_extend( |
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704 self.dmap |
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705 .fs_iter(self.root_dir.clone()) |
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706 .par_bridge() |
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707 .filter(|(path, _)| self.matcher.matches(path)) |
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708 .map(move |(filename, shortcut)| { |
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709 let entry = match shortcut { |
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710 StatusShortcut::Entry(e) => e, |
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711 StatusShortcut::Dispatch(d) => { |
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712 return (Cow::Owned(filename), d) |
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713 } |
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714 }; |
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715 let filename_as_path = match hg_path_to_path_buf(&filename) |
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716 { |
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717 Ok(f) => f, |
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718 Err(_) => { |
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719 return ( |
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720 Cow::Owned(filename), |
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721 INVALID_PATH_DISPATCH, |
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722 ) |
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723 } |
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724 }; |
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725 let meta = self |
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726 .root_dir |
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727 .join(filename_as_path) |
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728 .symlink_metadata(); |
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729 |
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730 match meta { |
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731 Ok(m) |
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732 if !(m.file_type().is_file() |
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733 || m.file_type().is_symlink()) => |
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734 { |
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735 ( |
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736 Cow::Owned(filename), |
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737 dispatch_missing(entry.state), |
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738 ) |
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739 } |
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740 Ok(m) => { |
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741 let dispatch = dispatch_found( |
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742 &filename, |
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743 entry, |
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744 HgMetadata::from_metadata(m), |
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745 &self.dmap.copy_map, |
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746 self.options, |
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747 ); |
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748 (Cow::Owned(filename), dispatch) |
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749 } |
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750 Err(e) |
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751 if e.kind() == ErrorKind::NotFound |
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752 || e.raw_os_error() == Some(20) => |
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753 { |
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754 // Rust does not yet have an `ErrorKind` for |
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755 // `NotADirectory` (errno 20) |
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756 // It happens if the dirstate contains `foo/bar` |
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757 // and foo is not a |
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758 // directory |
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759 ( |
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760 Cow::Owned(filename), |
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761 dispatch_missing(entry.state), |
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762 ) |
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763 } |
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764 Err(e) => { |
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765 (Cow::Owned(filename), dispatch_os_error(&e)) |
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766 } |
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767 } |
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768 }), |
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769 ); |
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770 } |
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771 |
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772 /// Add the files in the dirstate to the results. |
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773 /// |
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774 /// This takes a mutable reference to the results to account for the |
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775 /// `extend` in timings |
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776 #[cfg(not(feature = "dirstate-tree"))] |
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777 #[timed] |
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778 pub fn extend_from_dmap(&self, results: &mut Vec<DispatchedPath<'a>>) { |
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779 results.par_extend( |
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780 self.dmap |
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781 .par_iter() |
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782 .filter(|(path, _)| self.matcher.matches(path)) |
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783 .map(move |(filename, entry)| { |
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784 let filename: &HgPath = filename; |
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785 let filename_as_path = match hg_path_to_path_buf(filename) |
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786 { |
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787 Ok(f) => f, |
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788 Err(_) => { |
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789 return ( |
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790 Cow::Borrowed(filename), |
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791 INVALID_PATH_DISPATCH, |
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792 ) |
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793 } |
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794 }; |
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795 let meta = self |
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796 .root_dir |
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797 .join(filename_as_path) |
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798 .symlink_metadata(); |
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799 match meta { |
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800 Ok(m) |
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801 if !(m.file_type().is_file() |
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802 || m.file_type().is_symlink()) => |
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803 { |
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804 ( |
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805 Cow::Borrowed(filename), |
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806 dispatch_missing(entry.state), |
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807 ) |
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808 } |
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809 Ok(m) => ( |
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810 Cow::Borrowed(filename), |
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811 dispatch_found( |
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812 filename, |
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813 *entry, |
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814 HgMetadata::from_metadata(m), |
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815 &self.dmap.copy_map, |
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816 self.options, |
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817 ), |
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818 ), |
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819 Err(e) |
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820 if e.kind() == ErrorKind::NotFound |
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821 || e.raw_os_error() == Some(20) => |
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822 { |
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823 // Rust does not yet have an `ErrorKind` for |
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824 // `NotADirectory` (errno 20) |
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825 // It happens if the dirstate contains `foo/bar` |
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826 // and foo is not a |
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827 // directory |
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828 ( |
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829 Cow::Borrowed(filename), |
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830 dispatch_missing(entry.state), |
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831 ) |
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832 } |
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833 Err(e) => { |
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834 (Cow::Borrowed(filename), dispatch_os_error(&e)) |
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835 } |
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836 } |
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837 }), |
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838 ); |
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839 } |
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840 |
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841 /// Checks all files that are in the dirstate but were not found during the |
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842 /// working directory traversal. This means that the rest must |
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843 /// be either ignored, under a symlink or under a new nested repo. |
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844 /// |
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845 /// This takes a mutable reference to the results to account for the |
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846 /// `extend` in timings |
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847 #[cfg(not(feature = "dirstate-tree"))] |
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848 #[timed] |
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849 pub fn handle_unknowns(&self, results: &mut Vec<DispatchedPath<'a>>) { |
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850 let to_visit: Vec<(&HgPath, &DirstateEntry)> = |
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851 if results.is_empty() && self.matcher.matches_everything() { |
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852 self.dmap.iter().map(|(f, e)| (f.deref(), e)).collect() |
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853 } else { |
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854 // Only convert to a hashmap if needed. |
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855 let old_results: FastHashMap<_, _> = |
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856 results.iter().cloned().collect(); |
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857 self.dmap |
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858 .iter() |
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859 .filter_map(move |(f, e)| { |
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860 if !old_results.contains_key(f.deref()) |
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861 && self.matcher.matches(f) |
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862 { |
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863 Some((f.deref(), e)) |
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864 } else { |
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865 None |
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866 } |
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867 }) |
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868 .collect() |
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869 }; |
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870 |
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871 let path_auditor = PathAuditor::new(&self.root_dir); |
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872 |
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873 let new_results = to_visit.into_par_iter().filter_map( |
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874 |(filename, entry)| -> Option<_> { |
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875 // Report ignored items in the dmap as long as they are not |
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876 // under a symlink directory. |
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877 if path_auditor.check(filename) { |
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878 // TODO normalize for case-insensitive filesystems |
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879 let buf = match hg_path_to_path_buf(filename) { |
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880 Ok(x) => x, |
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881 Err(_) => { |
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882 return Some(( |
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883 Cow::Owned(filename.to_owned()), |
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884 INVALID_PATH_DISPATCH, |
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885 )); |
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886 } |
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887 }; |
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888 Some(( |
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889 Cow::Owned(filename.to_owned()), |
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890 match self.root_dir.join(&buf).symlink_metadata() { |
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891 // File was just ignored, no links, and exists |
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892 Ok(meta) => { |
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893 let metadata = HgMetadata::from_metadata(meta); |
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894 dispatch_found( |
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895 filename, |
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896 *entry, |
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897 metadata, |
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898 &self.dmap.copy_map, |
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899 self.options, |
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900 ) |
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901 } |
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902 // File doesn't exist |
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903 Err(_) => dispatch_missing(entry.state), |
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904 }, |
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905 )) |
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906 } else { |
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907 // It's either missing or under a symlink directory which |
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908 // we, in this case, report as missing. |
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909 Some(( |
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910 Cow::Owned(filename.to_owned()), |
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911 dispatch_missing(entry.state), |
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912 )) |
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913 } |
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914 }, |
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915 ); |
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916 |
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917 results.par_extend(new_results); |
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918 } |
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919 } |
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920 |
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921 #[timed] |
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922 pub fn build_response<'a>( |
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923 results: impl IntoIterator<Item = DispatchedPath<'a>>, |
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924 traversed: Vec<HgPathBuf>, |
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925 ) -> (Vec<HgPathCow<'a>>, DirstateStatus<'a>) { |
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926 let mut lookup = vec![]; |
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927 let mut modified = vec![]; |
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928 let mut added = vec![]; |
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929 let mut removed = vec![]; |
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930 let mut deleted = vec![]; |
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931 let mut clean = vec![]; |
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932 let mut ignored = vec![]; |
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933 let mut unknown = vec![]; |
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934 let mut bad = vec![]; |
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935 |
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936 for (filename, dispatch) in results.into_iter() { |
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937 match dispatch { |
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938 Dispatch::Unknown => unknown.push(filename), |
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939 Dispatch::Unsure => lookup.push(filename), |
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940 Dispatch::Modified => modified.push(filename), |
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941 Dispatch::Added => added.push(filename), |
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942 Dispatch::Removed => removed.push(filename), |
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943 Dispatch::Deleted => deleted.push(filename), |
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944 Dispatch::Clean => clean.push(filename), |
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945 Dispatch::Ignored => ignored.push(filename), |
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946 Dispatch::None => {} |
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947 Dispatch::Bad(reason) => bad.push((filename, reason)), |
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|
948 Dispatch::Directory { .. } => {} |
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949 } |
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950 } |
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951 |
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|
952 ( |
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953 lookup, |
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|
954 DirstateStatus { |
43271
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955 modified, |
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956 added, |
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957 removed, |
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958 deleted, |
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959 clean, |
44526
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960 ignored, |
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|
961 unknown, |
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962 bad, |
44838
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963 traversed, |
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964 }, |
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965 ) |
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966 } |
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967 |
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968 /// Get the status of files in the working directory. |
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969 /// |
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970 /// This is the current entry-point for `hg-core` and is realistically unusable |
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971 /// outside of a Python context because its arguments need to provide a lot of |
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972 /// information that will not be necessary in the future. |
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973 #[timed] |
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974 pub fn status<'a>( |
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975 dmap: &'a DirstateMap, |
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976 matcher: &'a (impl Matcher + Sync), |
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977 root_dir: PathBuf, |
44597
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978 ignore_files: Vec<PathBuf>, |
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979 options: StatusOptions, |
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980 ) -> StatusResult<( |
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981 (Vec<HgPathCow<'a>>, DirstateStatus<'a>), |
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982 Vec<PatternFileWarning>, |
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983 )> { |
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984 let (status, warnings) = |
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985 Status::new(dmap, matcher, root_dir, ignore_files, options)?; |
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986 |
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|
987 Ok((status.run()?, warnings)) |
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988 } |