annotate rust/hg-core/src/dirstate_tree/status.rs @ 48204:d2f760c2c91c

dirstate-v2: Separate Rust structs for Timestamp and PackedTimestamp PackedTimestamp is now exclusively for dirstate-v2 serialization purpose. It contains unaligned big-endian integers. Timestamp is used everywhere else and contains native Rust integers. Differential Revision: https://phab.mercurial-scm.org/D11632
author Simon Sapin <simon.sapin@octobus.net>
date Tue, 12 Oct 2021 16:20:05 +0200
parents 0cc0c0972164
children 320de901896a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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48204
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1 use crate::dirstate::entry::Timestamp;
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2 use crate::dirstate::status::IgnoreFnType;
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3 use crate::dirstate_tree::dirstate_map::BorrowedPath;
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4 use crate::dirstate_tree::dirstate_map::ChildNodesRef;
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5 use crate::dirstate_tree::dirstate_map::DirstateMap;
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6 use crate::dirstate_tree::dirstate_map::NodeData;
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7 use crate::dirstate_tree::dirstate_map::NodeRef;
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8 use crate::dirstate_tree::on_disk::DirstateV2ParseError;
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9 use crate::matchers::get_ignore_function;
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10 use crate::matchers::Matcher;
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11 use crate::utils::files::get_bytes_from_os_string;
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12 use crate::utils::files::get_path_from_bytes;
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13 use crate::utils::hg_path::HgPath;
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14 use crate::BadMatch;
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15 use crate::DirstateStatus;
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16 use crate::EntryState;
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17 use crate::HgPathBuf;
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18 use crate::PatternFileWarning;
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19 use crate::StatusError;
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20 use crate::StatusOptions;
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21 use micro_timer::timed;
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22 use rayon::prelude::*;
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23 use sha1::{Digest, Sha1};
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24 use std::borrow::Cow;
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25 use std::io;
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26 use std::path::Path;
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27 use std::path::PathBuf;
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28 use std::sync::Mutex;
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29 use std::time::SystemTime;
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30
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31 /// Returns the status of the working directory compared to its parent
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32 /// changeset.
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33 ///
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34 /// This algorithm is based on traversing the filesystem tree (`fs` in function
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35 /// and variable names) and dirstate tree at the same time. The core of this
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36 /// traversal is the recursive `traverse_fs_directory_and_dirstate` function
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37 /// and its use of `itertools::merge_join_by`. When reaching a path that only
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38 /// exists in one of the two trees, depending on information requested by
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39 /// `options` we may need to traverse the remaining subtree.
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40 #[timed]
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41 pub fn status<'tree, 'on_disk: 'tree>(
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42 dmap: &'tree mut DirstateMap<'on_disk>,
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43 matcher: &(dyn Matcher + Sync),
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44 root_dir: PathBuf,
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45 ignore_files: Vec<PathBuf>,
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46 options: StatusOptions,
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47 ) -> Result<(DirstateStatus<'on_disk>, Vec<PatternFileWarning>), StatusError> {
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48 let (ignore_fn, warnings, patterns_changed): (IgnoreFnType, _, _) =
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49 if options.list_ignored || options.list_unknown {
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50 let mut hasher = Sha1::new();
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51 let (ignore_fn, warnings) = get_ignore_function(
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52 ignore_files,
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53 &root_dir,
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54 &mut |pattern_bytes| hasher.update(pattern_bytes),
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55 )?;
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56 let new_hash = *hasher.finalize().as_ref();
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57 let changed = new_hash != dmap.ignore_patterns_hash;
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58 dmap.ignore_patterns_hash = new_hash;
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59 (ignore_fn, warnings, Some(changed))
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60 } else {
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61 (Box::new(|&_| true), vec![], None)
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62 };
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63
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64 let common = StatusCommon {
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65 dmap,
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66 options,
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67 matcher,
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68 ignore_fn,
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69 outcome: Default::default(),
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70 ignore_patterns_have_changed: patterns_changed,
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71 new_cachable_directories: Default::default(),
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72 outated_cached_directories: Default::default(),
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73 filesystem_time_at_status_start: filesystem_now(&root_dir).ok(),
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74 };
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75 let is_at_repo_root = true;
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76 let hg_path = &BorrowedPath::OnDisk(HgPath::new(""));
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77 let has_ignored_ancestor = false;
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78 let root_cached_mtime = None;
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79 let root_dir_metadata = None;
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80 // If the path we have for the repository root is a symlink, do follow it.
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81 // (As opposed to symlinks within the working directory which are not
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82 // followed, using `std::fs::symlink_metadata`.)
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83 common.traverse_fs_directory_and_dirstate(
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84 has_ignored_ancestor,
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85 dmap.root.as_ref(),
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86 hg_path,
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87 &root_dir,
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88 root_dir_metadata,
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89 root_cached_mtime,
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90 is_at_repo_root,
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91 )?;
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92 let mut outcome = common.outcome.into_inner().unwrap();
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93 let new_cachable = common.new_cachable_directories.into_inner().unwrap();
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94 let outdated = common.outated_cached_directories.into_inner().unwrap();
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95
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96 outcome.dirty = common.ignore_patterns_have_changed == Some(true)
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97 || !outdated.is_empty()
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98 || !new_cachable.is_empty();
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99
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100 // Remove outdated mtimes before adding new mtimes, in case a given
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101 // directory is both
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102 for path in &outdated {
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103 let node = dmap.get_or_insert(path)?;
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104 if let NodeData::CachedDirectory { .. } = &node.data {
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105 node.data = NodeData::None
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106 }
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107 }
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108 for (path, mtime) in &new_cachable {
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109 let node = dmap.get_or_insert(path)?;
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110 match &node.data {
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111 NodeData::Entry(_) => {} // Don’t overwrite an entry
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112 NodeData::CachedDirectory { .. } | NodeData::None => {
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113 node.data = NodeData::CachedDirectory { mtime: *mtime }
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114 }
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115 }
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116 }
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117
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118 Ok((outcome, warnings))
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119 }
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120
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121 /// Bag of random things needed by various parts of the algorithm. Reduces the
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122 /// number of parameters passed to functions.
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123 struct StatusCommon<'a, 'tree, 'on_disk: 'tree> {
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124 dmap: &'tree DirstateMap<'on_disk>,
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125 options: StatusOptions,
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126 matcher: &'a (dyn Matcher + Sync),
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127 ignore_fn: IgnoreFnType<'a>,
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128 outcome: Mutex<DirstateStatus<'on_disk>>,
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129 new_cachable_directories: Mutex<Vec<(Cow<'on_disk, HgPath>, Timestamp)>>,
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130 outated_cached_directories: Mutex<Vec<Cow<'on_disk, HgPath>>>,
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131
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132 /// Whether ignore files like `.hgignore` have changed since the previous
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133 /// time a `status()` call wrote their hash to the dirstate. `None` means
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134 /// we don’t know as this run doesn’t list either ignored or uknown files
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135 /// and therefore isn’t reading `.hgignore`.
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136 ignore_patterns_have_changed: Option<bool>,
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137
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138 /// The current time at the start of the `status()` algorithm, as measured
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139 /// and possibly truncated by the filesystem.
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140 filesystem_time_at_status_start: Option<SystemTime>,
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141 }
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142
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143 impl<'a, 'tree, 'on_disk> StatusCommon<'a, 'tree, 'on_disk> {
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144 fn read_dir(
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145 &self,
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146 hg_path: &HgPath,
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147 fs_path: &Path,
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148 is_at_repo_root: bool,
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149 ) -> Result<Vec<DirEntry>, ()> {
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150 DirEntry::read_dir(fs_path, is_at_repo_root)
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151 .map_err(|error| self.io_error(error, hg_path))
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152 }
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153
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154 fn io_error(&self, error: std::io::Error, hg_path: &HgPath) {
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155 let errno = error.raw_os_error().expect("expected real OS error");
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156 self.outcome
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157 .lock()
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158 .unwrap()
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159 .bad
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160 .push((hg_path.to_owned().into(), BadMatch::OsError(errno)))
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161 }
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162
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163 fn check_for_outdated_directory_cache(
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164 &self,
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165 dirstate_node: &NodeRef<'tree, 'on_disk>,
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166 ) -> Result<(), DirstateV2ParseError> {
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167 if self.ignore_patterns_have_changed == Some(true)
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168 && dirstate_node.cached_directory_mtime().is_some()
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169 {
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170 self.outated_cached_directories.lock().unwrap().push(
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171 dirstate_node
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172 .full_path_borrowed(self.dmap.on_disk)?
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173 .detach_from_tree(),
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174 )
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175 }
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176 Ok(())
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177 }
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178
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179 /// If this returns true, we can get accurate results by only using
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180 /// `symlink_metadata` for child nodes that exist in the dirstate and don’t
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181 /// need to call `read_dir`.
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182 fn can_skip_fs_readdir(
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183 &self,
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184 directory_metadata: Option<&std::fs::Metadata>,
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185 cached_directory_mtime: Option<Timestamp>,
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186 ) -> bool {
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187 if !self.options.list_unknown && !self.options.list_ignored {
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188 // All states that we care about listing have corresponding
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189 // dirstate entries.
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190 // This happens for example with `hg status -mard`.
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191 return true;
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192 }
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193 if !self.options.list_ignored
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194 && self.ignore_patterns_have_changed == Some(false)
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195 {
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196 if let Some(cached_mtime) = cached_directory_mtime {
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197 // The dirstate contains a cached mtime for this directory, set
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198 // by a previous run of the `status` algorithm which found this
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199 // directory eligible for `read_dir` caching.
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200 if let Some(meta) = directory_metadata {
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201 if let Ok(current_mtime) = meta.modified() {
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202 let current_mtime = Timestamp::from(current_mtime);
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203 if current_mtime == cached_mtime {
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204 // The mtime of that directory has not changed
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205 // since then, which means that the results of
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206 // `read_dir` should also be unchanged.
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207 return true;
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208 }
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209 }
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210 }
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211 }
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212 }
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213 false
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214 }
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215
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216 /// Returns whether all child entries of the filesystem directory have a
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217 /// corresponding dirstate node or are ignored.
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218 fn traverse_fs_directory_and_dirstate(
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219 &self,
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220 has_ignored_ancestor: bool,
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221 dirstate_nodes: ChildNodesRef<'tree, 'on_disk>,
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222 directory_hg_path: &BorrowedPath<'tree, 'on_disk>,
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223 directory_fs_path: &Path,
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224 directory_metadata: Option<&std::fs::Metadata>,
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225 cached_directory_mtime: Option<Timestamp>,
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226 is_at_repo_root: bool,
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227 ) -> Result<bool, DirstateV2ParseError> {
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228 if self.can_skip_fs_readdir(directory_metadata, cached_directory_mtime)
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229 {
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230 dirstate_nodes
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231 .par_iter()
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232 .map(|dirstate_node| {
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233 let fs_path = directory_fs_path.join(get_path_from_bytes(
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234 dirstate_node.base_name(self.dmap.on_disk)?.as_bytes(),
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235 ));
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236 match std::fs::symlink_metadata(&fs_path) {
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237 Ok(fs_metadata) => self.traverse_fs_and_dirstate(
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238 &fs_path,
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239 &fs_metadata,
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240 dirstate_node,
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241 has_ignored_ancestor,
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242 ),
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243 Err(e) if e.kind() == std::io::ErrorKind::NotFound => {
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244 self.traverse_dirstate_only(dirstate_node)
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245 }
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246 Err(error) => {
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247 let hg_path =
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248 dirstate_node.full_path(self.dmap.on_disk)?;
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249 Ok(self.io_error(error, hg_path))
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250 }
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251 }
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252 })
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253 .collect::<Result<_, _>>()?;
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254
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255 // We don’t know, so conservatively say this isn’t the case
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256 let children_all_have_dirstate_node_or_are_ignored = false;
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257
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258 return Ok(children_all_have_dirstate_node_or_are_ignored);
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259 }
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260
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261 let mut fs_entries = if let Ok(entries) = self.read_dir(
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262 directory_hg_path,
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263 directory_fs_path,
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264 is_at_repo_root,
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265 ) {
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266 entries
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267 } else {
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268 // Treat an unreadable directory (typically because of insufficient
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269 // permissions) like an empty directory. `self.read_dir` has
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270 // already called `self.io_error` so a warning will be emitted.
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271 Vec::new()
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272 };
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273
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274 // `merge_join_by` requires both its input iterators to be sorted:
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275
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276 let dirstate_nodes = dirstate_nodes.sorted();
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277 // `sort_unstable_by_key` doesn’t allow keys borrowing from the value:
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278 // https://github.com/rust-lang/rust/issues/34162
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279 fs_entries.sort_unstable_by(|e1, e2| e1.base_name.cmp(&e2.base_name));
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280
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281 // Propagate here any error that would happen inside the comparison
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282 // callback below
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283 for dirstate_node in &dirstate_nodes {
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284 dirstate_node.base_name(self.dmap.on_disk)?;
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285 }
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286 itertools::merge_join_by(
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287 dirstate_nodes,
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288 &fs_entries,
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289 |dirstate_node, fs_entry| {
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290 // This `unwrap` never panics because we already propagated
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291 // those errors above
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292 dirstate_node
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293 .base_name(self.dmap.on_disk)
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294 .unwrap()
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295 .cmp(&fs_entry.base_name)
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296 },
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297 )
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298 .par_bridge()
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299 .map(|pair| {
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300 use itertools::EitherOrBoth::*;
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301 let has_dirstate_node_or_is_ignored;
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302 match pair {
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303 Both(dirstate_node, fs_entry) => {
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304 self.traverse_fs_and_dirstate(
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305 &fs_entry.full_path,
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306 &fs_entry.metadata,
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307 dirstate_node,
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308 has_ignored_ancestor,
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309 )?;
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310 has_dirstate_node_or_is_ignored = true
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311 }
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312 Left(dirstate_node) => {
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313 self.traverse_dirstate_only(dirstate_node)?;
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314 has_dirstate_node_or_is_ignored = true;
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315 }
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316 Right(fs_entry) => {
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317 has_dirstate_node_or_is_ignored = self.traverse_fs_only(
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318 has_ignored_ancestor,
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319 directory_hg_path,
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320 fs_entry,
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321 )
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322 }
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323 }
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324 Ok(has_dirstate_node_or_is_ignored)
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325 })
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326 .try_reduce(|| true, |a, b| Ok(a && b))
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327 }
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328
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329 fn traverse_fs_and_dirstate(
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330 &self,
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331 fs_path: &Path,
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332 fs_metadata: &std::fs::Metadata,
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333 dirstate_node: NodeRef<'tree, 'on_disk>,
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334 has_ignored_ancestor: bool,
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335 ) -> Result<(), DirstateV2ParseError> {
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336 self.check_for_outdated_directory_cache(&dirstate_node)?;
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337 let hg_path = &dirstate_node.full_path_borrowed(self.dmap.on_disk)?;
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338 let file_type = fs_metadata.file_type();
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339 let file_or_symlink = file_type.is_file() || file_type.is_symlink();
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340 if !file_or_symlink {
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341 // If we previously had a file here, it was removed (with
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342 // `hg rm` or similar) or deleted before it could be
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aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
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343 // replaced by a directory or something else.
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344 self.mark_removed_or_deleted_if_file(
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73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
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diff changeset
345 &hg_path,
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346 dirstate_node.state()?,
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diff changeset
347 );
47128
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348 }
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diff changeset
349 if file_type.is_dir() {
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diff changeset
350 if self.options.collect_traversed_dirs {
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diff changeset
351 self.outcome
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352 .lock()
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353 .unwrap()
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354 .traversed
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355 .push(hg_path.detach_from_tree())
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356 }
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357 let is_ignored = has_ignored_ancestor || (self.ignore_fn)(hg_path);
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358 let is_at_repo_root = false;
47480
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359 let children_all_have_dirstate_node_or_are_ignored = self
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360 .traverse_fs_directory_and_dirstate(
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361 is_ignored,
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362 dirstate_node.children(self.dmap.on_disk)?,
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363 hg_path,
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364 fs_path,
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diff changeset
365 Some(fs_metadata),
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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366 dirstate_node.cached_directory_mtime(),
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diff changeset
367 is_at_repo_root,
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diff changeset
368 )?;
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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diff changeset
369 self.maybe_save_directory_mtime(
47480
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diff changeset
370 children_all_have_dirstate_node_or_are_ignored,
47355
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diff changeset
371 fs_metadata,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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diff changeset
372 dirstate_node,
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
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diff changeset
373 )?
47127
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374 } else {
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375 if file_or_symlink && self.matcher.matches(hg_path) {
47343
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diff changeset
376 if let Some(state) = dirstate_node.state()? {
47341
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
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diff changeset
377 match state {
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diff changeset
378 EntryState::Added => self
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diff changeset
379 .outcome
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diff changeset
380 .lock()
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diff changeset
381 .unwrap()
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diff changeset
382 .added
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diff changeset
383 .push(hg_path.detach_from_tree()),
47131
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diff changeset
384 EntryState::Removed => self
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diff changeset
385 .outcome
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diff changeset
386 .lock()
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diff changeset
387 .unwrap()
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diff changeset
388 .removed
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
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diff changeset
389 .push(hg_path.detach_from_tree()),
47131
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diff changeset
390 EntryState::Merged => self
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diff changeset
391 .outcome
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
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diff changeset
392 .lock()
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
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diff changeset
393 .unwrap()
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
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diff changeset
394 .modified
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
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diff changeset
395 .push(hg_path.detach_from_tree()),
47346
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
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diff changeset
396 EntryState::Normal => self
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
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diff changeset
397 .handle_normal_file(&dirstate_node, fs_metadata)?,
47127
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diff changeset
398 }
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Simon Sapin <simon.sapin@octobus.net>
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diff changeset
399 } else {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
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diff changeset
400 // `node.entry.is_none()` indicates a "directory"
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
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diff changeset
401 // node, but the filesystem has a file
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
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parents: 47479
diff changeset
402 self.mark_unknown_or_ignored(
94e38822d395 status: Extend read_dir caching to directories with ignored files
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diff changeset
403 has_ignored_ancestor,
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
404 hg_path,
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
405 );
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
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diff changeset
406 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
407 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
408
47344
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47343
diff changeset
409 for child_node in dirstate_node.children(self.dmap.on_disk)?.iter()
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47343
diff changeset
410 {
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
411 self.traverse_dirstate_only(child_node)?
47127
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
412 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
413 }
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
414 Ok(())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
415 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
416
47355
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
417 fn maybe_save_directory_mtime(
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
418 &self,
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
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diff changeset
419 children_all_have_dirstate_node_or_are_ignored: bool,
47355
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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parents: 47353
diff changeset
420 directory_metadata: &std::fs::Metadata,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
421 dirstate_node: NodeRef<'tree, 'on_disk>,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
422 ) -> Result<(), DirstateV2ParseError> {
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
423 if children_all_have_dirstate_node_or_are_ignored {
47355
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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parents: 47353
diff changeset
424 // All filesystem directory entries from `read_dir` have a
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
425 // corresponding node in the dirstate, so we can reconstitute the
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
426 // names of those entries without calling `read_dir` again.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
427 if let (Some(status_start), Ok(directory_mtime)) = (
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
428 &self.filesystem_time_at_status_start,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
429 directory_metadata.modified(),
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
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diff changeset
430 ) {
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
431 // Although the Rust standard library’s `SystemTime` type
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
432 // has nanosecond precision, the times reported for a
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
433 // directory’s (or file’s) modified time may have lower
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
434 // resolution based on the filesystem (for example ext3
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
435 // only stores integer seconds), kernel (see
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
436 // https://stackoverflow.com/a/14393315/1162888), etc.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
437 if &directory_mtime >= status_start {
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
438 // The directory was modified too recently, don’t cache its
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
439 // `read_dir` results.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
440 //
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
441 // A timeline like this is possible:
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
442 //
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
443 // 1. A change to this directory (direct child was
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
444 // added or removed) cause its mtime to be set
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
445 // (possibly truncated) to `directory_mtime`
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
446 // 2. This `status` algorithm calls `read_dir`
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
447 // 3. An other change is made to the same directory is
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
448 // made so that calling `read_dir` agin would give
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
449 // different results, but soon enough after 1. that
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
450 // the mtime stays the same
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
451 //
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
452 // On a system where the time resolution poor, this
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
453 // scenario is not unlikely if all three steps are caused
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
454 // by the same script.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
455 } else {
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
456 // We’ve observed (through `status_start`) that time has
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
457 // “progressed” since `directory_mtime`, so any further
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
458 // change to this directory is extremely likely to cause a
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
459 // different mtime.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
460 //
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
461 // Having the same mtime again is not entirely impossible
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
462 // since the system clock is not monotonous. It could jump
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
463 // backward to some point before `directory_mtime`, then a
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
464 // directory change could potentially happen during exactly
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
465 // the wrong tick.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
466 //
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
467 // We deem this scenario (unlike the previous one) to be
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
468 // unlikely enough in practice.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
469 let timestamp = directory_mtime.into();
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
470 let cached = dirstate_node.cached_directory_mtime();
48204
d2f760c2c91c dirstate-v2: Separate Rust structs for Timestamp and PackedTimestamp
Simon Sapin <simon.sapin@octobus.net>
parents: 48202
diff changeset
471 if cached != Some(timestamp) {
47355
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
472 let hg_path = dirstate_node
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
473 .full_path_borrowed(self.dmap.on_disk)?
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
474 .detach_from_tree();
47415
0ef8231e413f dirstate-v2: Store a hash of ignore patterns (.hgignore)
Simon Sapin <simon.sapin@octobus.net>
parents: 47356
diff changeset
475 self.new_cachable_directories
47355
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
476 .lock()
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
477 .unwrap()
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
478 .push((hg_path, timestamp))
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
479 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
480 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
481 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
482 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
483 Ok(())
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
484 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
485
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
486 /// A file with `EntryState::Normal` in the dirstate was found in the
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
487 /// filesystem
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
488 fn handle_normal_file(
47131
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47129
diff changeset
489 &self,
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
490 dirstate_node: &NodeRef<'tree, 'on_disk>,
47346
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47344
diff changeset
491 fs_metadata: &std::fs::Metadata,
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
492 ) -> Result<(), DirstateV2ParseError> {
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
493 // Keep the low 31 bits
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
494 fn truncate_u64(value: u64) -> i32 {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
495 (value & 0x7FFF_FFFF) as i32
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
496 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
497 fn truncate_i64(value: i64) -> i32 {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
498 (value & 0x7FFF_FFFF) as i32
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
499 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
500
47341
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47339
diff changeset
501 let entry = dirstate_node
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
502 .entry()?
47341
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47339
diff changeset
503 .expect("handle_normal_file called with entry-less node");
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
504 let hg_path = &dirstate_node.full_path_borrowed(self.dmap.on_disk)?;
47346
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47344
diff changeset
505 let mode_changed =
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47344
diff changeset
506 || self.options.check_exec && entry.mode_changed(fs_metadata);
48044
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47480
diff changeset
507 let size = entry.size();
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47480
diff changeset
508 let size_changed = size != truncate_u64(fs_metadata.len());
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47480
diff changeset
509 if size >= 0 && size_changed && fs_metadata.file_type().is_symlink() {
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
510 // issue6456: Size returned may be longer due to encryption
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
511 // on EXT-4 fscrypt. TODO maybe only do it on EXT4?
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
512 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
513 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
514 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
515 .unsure
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
516 .push(hg_path.detach_from_tree())
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
517 } else if dirstate_node.has_copy_source()
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
518 || entry.is_from_other_parent()
48044
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47480
diff changeset
519 || (size >= 0 && (size_changed || mode_changed()))
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
520 {
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
521 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
522 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
523 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
524 .modified
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
525 .push(hg_path.detach_from_tree())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
526 } else {
47346
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47344
diff changeset
527 let mtime = mtime_seconds(fs_metadata);
48044
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47480
diff changeset
528 if truncate_i64(mtime) != entry.mtime()
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
529 || mtime == self.options.last_normal_time
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
530 {
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
531 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
532 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
533 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
534 .unsure
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
535 .push(hg_path.detach_from_tree())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
536 } else if self.options.list_clean {
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
537 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
538 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
539 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
540 .clean
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
541 .push(hg_path.detach_from_tree())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
542 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
543 }
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
544 Ok(())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
545 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
546
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
547 /// A node in the dirstate tree has no corresponding filesystem entry
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
548 fn traverse_dirstate_only(
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
549 &self,
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
550 dirstate_node: NodeRef<'tree, 'on_disk>,
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
551 ) -> Result<(), DirstateV2ParseError> {
47479
c657beacdf2e dirstate-v2: Drop cached read_dir results after .hgignore changes
Simon Sapin <simon.sapin@octobus.net>
parents: 47415
diff changeset
552 self.check_for_outdated_directory_cache(&dirstate_node)?;
47341
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47339
diff changeset
553 self.mark_removed_or_deleted_if_file(
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
554 &dirstate_node.full_path_borrowed(self.dmap.on_disk)?,
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
555 dirstate_node.state()?,
47341
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47339
diff changeset
556 );
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47339
diff changeset
557 dirstate_node
47344
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47343
diff changeset
558 .children(self.dmap.on_disk)?
47341
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47339
diff changeset
559 .par_iter()
47343
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
560 .map(|child_node| self.traverse_dirstate_only(child_node))
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47341
diff changeset
561 .collect()
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
562 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
563
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
564 /// A node in the dirstate tree has no corresponding *file* on the
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
565 /// filesystem
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
566 ///
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
567 /// Does nothing on a "directory" node
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
568 fn mark_removed_or_deleted_if_file(
47131
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47129
diff changeset
569 &self,
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
570 hg_path: &BorrowedPath<'tree, 'on_disk>,
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
571 dirstate_node_state: Option<EntryState>,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
572 ) {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
573 if let Some(state) = dirstate_node_state {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
574 if self.matcher.matches(hg_path) {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
575 if let EntryState::Removed = state {
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
576 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
577 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
578 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
579 .removed
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
580 .push(hg_path.detach_from_tree())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
581 } else {
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
582 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
583 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
584 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
585 .deleted
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
586 .push(hg_path.detach_from_tree())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
587 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
588 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
589 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
590 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
591
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
592 /// Something in the filesystem has no corresponding dirstate node
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
593 ///
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
594 /// Returns whether that path is ignored
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
595 fn traverse_fs_only(
47131
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47129
diff changeset
596 &self,
47127
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
597 has_ignored_ancestor: bool,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
598 directory_hg_path: &HgPath,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
599 fs_entry: &DirEntry,
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
600 ) -> bool {
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
601 let hg_path = directory_hg_path.join(&fs_entry.base_name);
47128
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47127
diff changeset
602 let file_type = fs_entry.metadata.file_type();
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47127
diff changeset
603 let file_or_symlink = file_type.is_file() || file_type.is_symlink();
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47127
diff changeset
604 if file_type.is_dir() {
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
605 let is_ignored =
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
606 has_ignored_ancestor || (self.ignore_fn)(&hg_path);
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
607 let traverse_children = if is_ignored {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
608 // Descendants of an ignored directory are all ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
609 self.options.list_ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
610 } else {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
611 // Descendants of an unknown directory may be either unknown or
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
612 // ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
613 self.options.list_unknown || self.options.list_ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
614 };
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
615 if traverse_children {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
616 let is_at_repo_root = false;
47129
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47128
diff changeset
617 if let Ok(children_fs_entries) = self.read_dir(
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47128
diff changeset
618 &hg_path,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47128
diff changeset
619 &fs_entry.full_path,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47128
diff changeset
620 is_at_repo_root,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47128
diff changeset
621 ) {
47131
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47129
diff changeset
622 children_fs_entries.par_iter().for_each(|child_fs_entry| {
47129
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47128
diff changeset
623 self.traverse_fs_only(
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47128
diff changeset
624 is_ignored,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47128
diff changeset
625 &hg_path,
47131
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47129
diff changeset
626 child_fs_entry,
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
627 );
47131
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47129
diff changeset
628 })
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
629 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
630 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
631 if self.options.collect_traversed_dirs {
47131
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47129
diff changeset
632 self.outcome.lock().unwrap().traversed.push(hg_path.into())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
633 }
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
634 is_ignored
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
635 } else {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
636 if file_or_symlink {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
637 if self.matcher.matches(&hg_path) {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
638 self.mark_unknown_or_ignored(
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
639 has_ignored_ancestor,
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
640 &BorrowedPath::InMemory(&hg_path),
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
641 )
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
642 } else {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
643 // We haven’t computed whether this path is ignored. It
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
644 // might not be, and a future run of status might have a
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
645 // different matcher that matches it. So treat it as not
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
646 // ignored. That is, inhibit readdir caching of the parent
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
647 // directory.
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
648 false
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
649 }
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
650 } else {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
651 // This is neither a directory, a plain file, or a symlink.
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
652 // Treat it like an ignored file.
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
653 true
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
654 }
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
655 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
656 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
657
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
658 /// Returns whether that path is ignored
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
659 fn mark_unknown_or_ignored(
47131
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47129
diff changeset
660 &self,
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
661 has_ignored_ancestor: bool,
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
662 hg_path: &BorrowedPath<'_, 'on_disk>,
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
663 ) -> bool {
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
664 let is_ignored = has_ignored_ancestor || (self.ignore_fn)(&hg_path);
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
665 if is_ignored {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
666 if self.options.list_ignored {
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
667 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
668 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
669 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
670 .ignored
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
671 .push(hg_path.detach_from_tree())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
672 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
673 } else {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
674 if self.options.list_unknown {
47353
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
675 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
676 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
677 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
678 .unknown
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47352
diff changeset
679 .push(hg_path.detach_from_tree())
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
680 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
681 }
47480
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47479
diff changeset
682 is_ignored
47127
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
683 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
684 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
685
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
686 #[cfg(unix)] // TODO
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
687 fn mtime_seconds(metadata: &std::fs::Metadata) -> i64 {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
688 // Going through `Metadata::modified()` would be portable, but would take
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
689 // care to construct a `SystemTime` value with sub-second precision just
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
690 // for us to throw that away here.
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
691 use std::os::unix::fs::MetadataExt;
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
692 metadata.mtime()
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
693 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
694
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
695 struct DirEntry {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
696 base_name: HgPathBuf,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
697 full_path: PathBuf,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
698 metadata: std::fs::Metadata,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
699 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
700
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
701 impl DirEntry {
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702 /// Returns **unsorted** entries in the given directory, with name and
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Simon Sapin <simon.sapin@octobus.net>
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703 /// metadata.
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704 ///
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705 /// If a `.hg` sub-directory is encountered:
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Simon Sapin <simon.sapin@octobus.net>
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706 ///
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parents: 47126
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707 /// * At the repository root, ignore that sub-directory
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708 /// * Elsewhere, we’re listing the content of a sub-repo. Return an empty
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
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709 /// list instead.
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Simon Sapin <simon.sapin@octobus.net>
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710 fn read_dir(path: &Path, is_at_repo_root: bool) -> io::Result<Vec<Self>> {
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Simon Sapin <simon.sapin@octobus.net>
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711 let mut results = Vec::new();
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
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712 for entry in path.read_dir()? {
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Simon Sapin <simon.sapin@octobus.net>
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713 let entry = entry?;
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
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714 let metadata = entry.metadata()?;
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
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715 let name = get_bytes_from_os_string(entry.file_name());
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
716 // FIXME don't do this when cached
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parents: 47126
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717 if name == b".hg" {
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parents: 47126
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718 if is_at_repo_root {
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parents: 47126
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719 // Skip the repo’s own .hg (might be a symlink)
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720 continue;
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Simon Sapin <simon.sapin@octobus.net>
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721 } else if metadata.is_dir() {
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
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722 // A .hg sub-directory at another location means a subrepo,
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
diff changeset
723 // skip it entirely.
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Simon Sapin <simon.sapin@octobus.net>
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diff changeset
724 return Ok(Vec::new());
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parents: 47126
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725 }
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
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726 }
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Simon Sapin <simon.sapin@octobus.net>
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727 results.push(DirEntry {
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
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728 base_name: name.into(),
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729 full_path: entry.path(),
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730 metadata,
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Simon Sapin <simon.sapin@octobus.net>
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731 })
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Simon Sapin <simon.sapin@octobus.net>
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732 }
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Simon Sapin <simon.sapin@octobus.net>
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733 Ok(results)
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
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734 }
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Simon Sapin <simon.sapin@octobus.net>
parents: 47126
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735 }
47355
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
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736
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
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737 /// Return the `mtime` of a temporary file newly-created in the `.hg` directory
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
738 /// of the give repository.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
739 ///
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
740 /// This is similar to `SystemTime::now()`, with the result truncated to the
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
741 /// same time resolution as other files’ modification times. Using `.hg`
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
742 /// instead of the system’s default temporary directory (such as `/tmp`) makes
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
743 /// it more likely the temporary file is in the same disk partition as contents
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
744 /// of the working directory, which can matter since different filesystems may
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
745 /// store timestamps with different resolutions.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
746 ///
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
747 /// This may fail, typically if we lack write permissions. In that case we
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
748 /// should continue the `status()` algoritm anyway and consider the current
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
749 /// date/time to be unknown.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
750 fn filesystem_now(repo_root: &Path) -> Result<SystemTime, io::Error> {
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
751 tempfile::tempfile_in(repo_root.join(".hg"))?
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47353
diff changeset
752 .metadata()?
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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parents: 47353
diff changeset
753 .modified()
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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parents: 47353
diff changeset
754 }