annotate rust/hg-core/src/dirstate_tree/status.rs @ 51700:7f0cb9ee0534

Backout accidental publication of a large range of revisions I accidentally published 25e7f9dcad0f::bd1483fd7088, this is the inverse.
author Raphaël Gomès <rgomes@octobus.net>
date Tue, 23 Jul 2024 10:02:46 +0200
parents 771598067be2
children 3876d4c6c79e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 use crate::dirstate::entry::TruncatedTimestamp;
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2 use crate::dirstate::status::IgnoreFnType;
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3 use crate::dirstate::status::StatusPath;
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4 use crate::dirstate_tree::dirstate_map::BorrowedPath;
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5 use crate::dirstate_tree::dirstate_map::ChildNodesRef;
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6 use crate::dirstate_tree::dirstate_map::DirstateMap;
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7 use crate::dirstate_tree::dirstate_map::DirstateVersion;
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8 use crate::dirstate_tree::dirstate_map::NodeRef;
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9 use crate::dirstate_tree::on_disk::DirstateV2ParseError;
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10 use crate::matchers::get_ignore_function;
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11 use crate::matchers::{Matcher, VisitChildrenSet};
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12 use crate::utils::files::get_bytes_from_os_string;
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13 use crate::utils::files::get_bytes_from_path;
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14 use crate::utils::files::get_path_from_bytes;
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15 use crate::utils::hg_path::hg_path_to_path_buf;
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16 use crate::utils::hg_path::HgPath;
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17 use crate::BadMatch;
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18 use crate::BadType;
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19 use crate::DirstateStatus;
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20 use crate::HgPathCow;
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21 use crate::PatternFileWarning;
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22 use crate::StatusError;
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23 use crate::StatusOptions;
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24 use once_cell::sync::OnceCell;
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25 use rayon::prelude::*;
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26 use sha1::{Digest, Sha1};
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27 use std::borrow::Cow;
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28 use std::io;
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29 use std::os::unix::prelude::FileTypeExt;
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30 use std::path::Path;
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31 use std::path::PathBuf;
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32 use std::sync::Mutex;
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33 use std::time::SystemTime;
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34
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35 /// Returns the status of the working directory compared to its parent
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36 /// changeset.
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37 ///
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38 /// This algorithm is based on traversing the filesystem tree (`fs` in function
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39 /// and variable names) and dirstate tree at the same time. The core of this
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40 /// traversal is the recursive `traverse_fs_directory_and_dirstate` function
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41 /// and its use of `itertools::merge_join_by`. When reaching a path that only
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42 /// exists in one of the two trees, depending on information requested by
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43 /// `options` we may need to traverse the remaining subtree.
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44 #[logging_timer::time("trace")]
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45 pub fn status<'dirstate>(
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46 dmap: &'dirstate mut DirstateMap,
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47 matcher: &(dyn Matcher + Sync),
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48 root_dir: PathBuf,
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49 ignore_files: Vec<PathBuf>,
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50 options: StatusOptions,
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51 ) -> Result<(DirstateStatus<'dirstate>, Vec<PatternFileWarning>), StatusError>
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52 {
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53 // Also cap for a Python caller of this function, but don't complain if
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54 // the global threadpool has already been set since this code path is also
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55 // being used by `rhg`, which calls this early.
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56 let _ = crate::utils::cap_default_rayon_threads();
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57
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58 let (ignore_fn, warnings, patterns_changed): (IgnoreFnType, _, _) =
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59 if options.list_ignored || options.list_unknown {
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60 let (ignore_fn, warnings, changed) = match dmap.dirstate_version {
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61 DirstateVersion::V1 => {
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62 let (ignore_fn, warnings) = get_ignore_function(
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63 ignore_files,
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64 &root_dir,
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65 &mut |_source, _pattern_bytes| {},
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66 )?;
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67 (ignore_fn, warnings, None)
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68 }
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69 DirstateVersion::V2 => {
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70 let mut hasher = Sha1::new();
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71 let (ignore_fn, warnings) = get_ignore_function(
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72 ignore_files,
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73 &root_dir,
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74 &mut |source, pattern_bytes| {
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75 // If inside the repo, use the relative version to
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76 // make it deterministic inside tests.
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77 // The performance hit should be negligible.
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78 let source = source
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79 .strip_prefix(&root_dir)
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80 .unwrap_or(source);
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81 let source = get_bytes_from_path(source);
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82
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83 let mut subhasher = Sha1::new();
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84 subhasher.update(pattern_bytes);
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85 let patterns_hash = subhasher.finalize();
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86
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87 hasher.update(source);
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88 hasher.update(b" ");
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89 hasher.update(patterns_hash);
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90 hasher.update(b"\n");
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91 },
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92 )?;
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93 let new_hash = *hasher.finalize().as_ref();
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94 let changed = new_hash != dmap.ignore_patterns_hash;
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95 dmap.ignore_patterns_hash = new_hash;
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96 (ignore_fn, warnings, Some(changed))
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97 }
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98 };
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99 (ignore_fn, warnings, changed)
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100 } else {
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101 (Box::new(|&_| true), vec![], None)
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102 };
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103
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104 let filesystem_time_at_status_start =
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105 filesystem_now(&root_dir).ok().map(TruncatedTimestamp::from);
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106
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107 // If the repository is under the current directory, prefer using a
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108 // relative path, so the kernel needs to traverse fewer directory in every
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109 // call to `read_dir` or `symlink_metadata`.
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110 // This is effective in the common case where the current directory is the
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111 // repository root.
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112
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113 // TODO: Better yet would be to use libc functions like `openat` and
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114 // `fstatat` to remove such repeated traversals entirely, but the standard
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115 // library does not provide APIs based on those.
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116 // Maybe with a crate like https://crates.io/crates/openat instead?
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117 let root_dir = if let Some(relative) = std::env::current_dir()
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118 .ok()
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119 .and_then(|cwd| root_dir.strip_prefix(cwd).ok())
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120 {
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121 relative
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122 } else {
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123 &root_dir
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124 };
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125
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126 let outcome = DirstateStatus {
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127 filesystem_time_at_status_start,
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128 ..Default::default()
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129 };
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130 let common = StatusCommon {
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131 dmap,
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132 options,
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133 matcher,
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134 ignore_fn,
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135 outcome: Mutex::new(outcome),
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136 ignore_patterns_have_changed: patterns_changed,
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137 new_cacheable_directories: Default::default(),
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138 outdated_cached_directories: Default::default(),
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139 filesystem_time_at_status_start,
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140 };
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141 let is_at_repo_root = true;
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142 let hg_path = &BorrowedPath::OnDisk(HgPath::new(""));
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143 let has_ignored_ancestor = HasIgnoredAncestor::create(None, hg_path);
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144 let root_cached_mtime = None;
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145 // If the path we have for the repository root is a symlink, do follow it.
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146 // (As opposed to symlinks within the working directory which are not
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147 // followed, using `std::fs::symlink_metadata`.)
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148 common.traverse_fs_directory_and_dirstate(
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149 &has_ignored_ancestor,
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150 dmap.root.as_ref(),
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151 hg_path,
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152 &DirEntry {
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153 hg_path: Cow::Borrowed(HgPath::new(b"")),
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154 fs_path: Cow::Borrowed(root_dir),
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155 symlink_metadata: None,
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156 file_type: FakeFileType::Directory,
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157 },
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158 root_cached_mtime,
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159 is_at_repo_root,
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160 )?;
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161 if let Some(file_set) = common.matcher.file_set() {
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162 for file in file_set {
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163 if !file.is_empty() && !dmap.has_node(file)? {
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164 let path = hg_path_to_path_buf(file)?;
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165 if let io::Result::Err(error) =
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166 root_dir.join(path).symlink_metadata()
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167 {
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168 common.io_error(error, file)
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169 }
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170 }
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171 }
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172 }
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173 let mut outcome = common.outcome.into_inner().unwrap();
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174 let new_cacheable = common.new_cacheable_directories.into_inner().unwrap();
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175 let outdated = common.outdated_cached_directories.into_inner().unwrap();
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176
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177 outcome.dirty = common.ignore_patterns_have_changed == Some(true)
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178 || !outdated.is_empty()
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179 || (!new_cacheable.is_empty()
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180 && dmap.dirstate_version == DirstateVersion::V2);
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181
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182 // Remove outdated mtimes before adding new mtimes, in case a given
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183 // directory is both
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184 for path in &outdated {
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185 dmap.clear_cached_mtime(path)?;
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186 }
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187 for (path, mtime) in &new_cacheable {
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188 dmap.set_cached_mtime(path, *mtime)?;
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189 }
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190
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191 Ok((outcome, warnings))
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192 }
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193
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194 /// Bag of random things needed by various parts of the algorithm. Reduces the
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195 /// number of parameters passed to functions.
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196 struct StatusCommon<'a, 'tree, 'on_disk: 'tree> {
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197 dmap: &'tree DirstateMap<'on_disk>,
47113
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198 options: StatusOptions,
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199 matcher: &'a (dyn Matcher + Sync),
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200 ignore_fn: IgnoreFnType<'a>,
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201 outcome: Mutex<DirstateStatus<'on_disk>>,
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202 /// New timestamps of directories to be used for caching their readdirs
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203 new_cacheable_directories:
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204 Mutex<Vec<(Cow<'on_disk, HgPath>, TruncatedTimestamp)>>,
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205 /// Used to invalidate the readdir cache of directories
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206 outdated_cached_directories: Mutex<Vec<Cow<'on_disk, HgPath>>>,
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207
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208 /// Whether ignore files like `.hgignore` have changed since the previous
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209 /// time a `status()` call wrote their hash to the dirstate. `None` means
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210 /// we don’t know as this run doesn’t list either ignored or uknown files
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211 /// and therefore isn’t reading `.hgignore`.
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212 ignore_patterns_have_changed: Option<bool>,
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213
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214 /// The current time at the start of the `status()` algorithm, as measured
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215 /// and possibly truncated by the filesystem.
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diff changeset
216 filesystem_time_at_status_start: Option<TruncatedTimestamp>,
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217 }
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218
48454
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diff changeset
219 enum Outcome {
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220 Modified,
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221 Added,
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222 Removed,
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223 Deleted,
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224 Clean,
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225 Ignored,
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226 Unknown,
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227 Unsure,
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228 }
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229
49520
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230 /// Lazy computation of whether a given path has a hgignored
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231 /// ancestor.
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diff changeset
232 struct HasIgnoredAncestor<'a> {
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233 /// `path` and `parent` constitute the inputs to the computation,
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234 /// `cache` stores the outcome.
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235 path: &'a HgPath,
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236 parent: Option<&'a HasIgnoredAncestor<'a>>,
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237 cache: OnceCell<bool>,
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238 }
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239
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240 impl<'a> HasIgnoredAncestor<'a> {
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241 fn create(
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242 parent: Option<&'a HasIgnoredAncestor<'a>>,
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243 path: &'a HgPath,
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244 ) -> HasIgnoredAncestor<'a> {
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245 Self {
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246 path,
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247 parent,
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248 cache: OnceCell::new(),
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249 }
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250 }
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251
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252 fn force(&self, ignore_fn: &IgnoreFnType<'_>) -> bool {
49520
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253 match self.parent {
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254 None => false,
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255 Some(parent) => {
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256 *(self.cache.get_or_init(|| {
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257 parent.force(ignore_fn) || ignore_fn(self.path)
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258 }))
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259 }
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260 }
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261 }
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262 }
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263
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264 impl<'a, 'tree, 'on_disk> StatusCommon<'a, 'tree, 'on_disk> {
48454
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265 fn push_outcome(
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266 &self,
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267 which: Outcome,
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268 dirstate_node: &NodeRef<'tree, 'on_disk>,
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269 ) -> Result<(), DirstateV2ParseError> {
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270 let path = dirstate_node
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271 .full_path_borrowed(self.dmap.on_disk)?
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272 .detach_from_tree();
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273 let copy_source = if self.options.list_copies {
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274 dirstate_node
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275 .copy_source_borrowed(self.dmap.on_disk)?
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276 .map(|source| source.detach_from_tree())
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277 } else {
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278 None
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279 };
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280 self.push_outcome_common(which, path, copy_source);
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281 Ok(())
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282 }
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283
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284 fn push_outcome_without_copy_source(
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285 &self,
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286 which: Outcome,
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287 path: &BorrowedPath<'_, 'on_disk>,
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288 ) {
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289 self.push_outcome_common(which, path.detach_from_tree(), None)
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290 }
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291
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diff changeset
292 fn push_outcome_common(
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293 &self,
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diff changeset
294 which: Outcome,
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295 path: HgPathCow<'on_disk>,
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296 copy_source: Option<HgPathCow<'on_disk>>,
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297 ) {
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298 let mut outcome = self.outcome.lock().unwrap();
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299 let vec = match which {
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300 Outcome::Modified => &mut outcome.modified,
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301 Outcome::Added => &mut outcome.added,
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diff changeset
302 Outcome::Removed => &mut outcome.removed,
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303 Outcome::Deleted => &mut outcome.deleted,
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304 Outcome::Clean => &mut outcome.clean,
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305 Outcome::Ignored => &mut outcome.ignored,
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306 Outcome::Unknown => &mut outcome.unknown,
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diff changeset
307 Outcome::Unsure => &mut outcome.unsure,
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308 };
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diff changeset
309 vec.push(StatusPath { path, copy_source });
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310 }
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diff changeset
311
47115
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diff changeset
312 fn read_dir(
47117
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diff changeset
313 &self,
47115
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diff changeset
314 hg_path: &HgPath,
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diff changeset
315 fs_path: &Path,
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diff changeset
316 is_at_repo_root: bool,
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diff changeset
317 ) -> Result<Vec<DirEntry>, ()> {
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
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diff changeset
318 DirEntry::read_dir(fs_path, is_at_repo_root)
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diff changeset
319 .map_err(|error| self.io_error(error, hg_path))
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diff changeset
320 }
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diff changeset
321
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diff changeset
322 fn io_error(&self, error: std::io::Error, hg_path: &HgPath) {
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diff changeset
323 let errno = error.raw_os_error().expect("expected real OS error");
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diff changeset
324 self.outcome
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diff changeset
325 .lock()
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diff changeset
326 .unwrap()
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diff changeset
327 .bad
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diff changeset
328 .push((hg_path.to_owned().into(), BadMatch::OsError(errno)))
47115
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diff changeset
329 }
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diff changeset
330
47474
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diff changeset
331 fn check_for_outdated_directory_cache(
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diff changeset
332 &self,
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diff changeset
333 dirstate_node: &NodeRef<'tree, 'on_disk>,
49555
8ee3889bab92 rust-status: save new dircache even if just invalidated
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diff changeset
334 ) -> Result<bool, DirstateV2ParseError> {
47474
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diff changeset
335 if self.ignore_patterns_have_changed == Some(true)
48193
320de901896a dirstate-v2: Truncate directory mtimes to 31 bits of seconds
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parents: 48192
diff changeset
336 && dirstate_node.cached_directory_mtime()?.is_some()
47474
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diff changeset
337 {
49554
ecf9788cd9c4 rust-status: fix typos and add docstrings to dircache related fields
Raphaël Gomès <rgomes@octobus.net>
parents: 49520
diff changeset
338 self.outdated_cached_directories.lock().unwrap().push(
47474
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diff changeset
339 dirstate_node
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diff changeset
340 .full_path_borrowed(self.dmap.on_disk)?
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diff changeset
341 .detach_from_tree(),
49555
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diff changeset
342 );
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diff changeset
343 return Ok(true);
47474
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diff changeset
344 }
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diff changeset
345 Ok(false)
47474
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diff changeset
346 }
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diff changeset
347
47349
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diff changeset
348 /// If this returns true, we can get accurate results by only using
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diff changeset
349 /// `symlink_metadata` for child nodes that exist in the dirstate and don’t
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diff changeset
350 /// need to call `read_dir`.
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diff changeset
351 fn can_skip_fs_readdir(
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diff changeset
352 &self,
49568
da48f170d203 rust-status: query fs traversal metadata lazily
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parents: 49567
diff changeset
353 directory_entry: &DirEntry,
48193
320de901896a dirstate-v2: Truncate directory mtimes to 31 bits of seconds
Simon Sapin <simon.sapin@octobus.net>
parents: 48192
diff changeset
354 cached_directory_mtime: Option<TruncatedTimestamp>,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
355 ) -> bool {
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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parents: 47347
diff changeset
356 if !self.options.list_unknown && !self.options.list_ignored {
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
357 // All states that we care about listing have corresponding
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
358 // dirstate entries.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
359 // This happens for example with `hg status -mard`.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
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parents: 47347
diff changeset
360 return true;
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
361 }
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
362 if !self.options.list_ignored
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
363 && self.ignore_patterns_have_changed == Some(false)
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
364 {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
365 if let Some(cached_mtime) = cached_directory_mtime {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
366 // The dirstate contains a cached mtime for this directory, set
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
367 // by a previous run of the `status` algorithm which found this
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
368 // directory eligible for `read_dir` caching.
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
369 if let Ok(meta) = directory_entry.symlink_metadata() {
48218
15dedc0c5c35 status: Extract TruncatedTimestamp from fs::Metadata without SystemTime
Simon Sapin <simon.sapin@octobus.net>
parents: 48193
diff changeset
370 if cached_mtime
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
371 .likely_equal_to_mtime_of(&meta)
48218
15dedc0c5c35 status: Extract TruncatedTimestamp from fs::Metadata without SystemTime
Simon Sapin <simon.sapin@octobus.net>
parents: 48193
diff changeset
372 .unwrap_or(false)
15dedc0c5c35 status: Extract TruncatedTimestamp from fs::Metadata without SystemTime
Simon Sapin <simon.sapin@octobus.net>
parents: 48193
diff changeset
373 {
15dedc0c5c35 status: Extract TruncatedTimestamp from fs::Metadata without SystemTime
Simon Sapin <simon.sapin@octobus.net>
parents: 48193
diff changeset
374 // The mtime of that directory has not changed
15dedc0c5c35 status: Extract TruncatedTimestamp from fs::Metadata without SystemTime
Simon Sapin <simon.sapin@octobus.net>
parents: 48193
diff changeset
375 // since then, which means that the results of
15dedc0c5c35 status: Extract TruncatedTimestamp from fs::Metadata without SystemTime
Simon Sapin <simon.sapin@octobus.net>
parents: 48193
diff changeset
376 // `read_dir` should also be unchanged.
15dedc0c5c35 status: Extract TruncatedTimestamp from fs::Metadata without SystemTime
Simon Sapin <simon.sapin@octobus.net>
parents: 48193
diff changeset
377 return true;
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
378 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
379 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
380 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
381 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
382 false
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
383 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
384
50864
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
385 fn should_visit(set: &VisitChildrenSet, basename: &HgPath) -> bool {
76387f79befe rust-status: only visit parts of the tree requested by the matcher
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parents: 50863
diff changeset
386 match set {
76387f79befe rust-status: only visit parts of the tree requested by the matcher
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parents: 50863
diff changeset
387 VisitChildrenSet::This | VisitChildrenSet::Recursive => true,
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
388 VisitChildrenSet::Empty => false,
76387f79befe rust-status: only visit parts of the tree requested by the matcher
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parents: 50863
diff changeset
389 VisitChildrenSet::Set(children_to_visit) => {
76387f79befe rust-status: only visit parts of the tree requested by the matcher
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parents: 50863
diff changeset
390 children_to_visit.contains(basename)
76387f79befe rust-status: only visit parts of the tree requested by the matcher
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parents: 50863
diff changeset
391 }
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
392 }
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
393 }
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
394
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
395 /// Returns whether all child entries of the filesystem directory have a
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
396 /// corresponding dirstate node or are ignored.
49520
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
397 fn traverse_fs_directory_and_dirstate<'ancestor>(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
398 &self,
49520
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
399 has_ignored_ancestor: &'ancestor HasIgnoredAncestor<'ancestor>,
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
400 dirstate_nodes: ChildNodesRef<'tree, 'on_disk>,
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
401 directory_hg_path: &BorrowedPath<'tree, 'on_disk>,
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
402 directory_entry: &DirEntry,
48193
320de901896a dirstate-v2: Truncate directory mtimes to 31 bits of seconds
Simon Sapin <simon.sapin@octobus.net>
parents: 48192
diff changeset
403 cached_directory_mtime: Option<TruncatedTimestamp>,
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
404 is_at_repo_root: bool,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
405 ) -> Result<bool, DirstateV2ParseError> {
50864
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
406 let children_set = self.matcher.visit_children_set(directory_hg_path);
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
407 if let VisitChildrenSet::Empty = children_set {
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
408 return Ok(false);
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
409 }
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
410 if self.can_skip_fs_readdir(directory_entry, cached_directory_mtime) {
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
411 dirstate_nodes
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
412 .par_iter()
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
413 .map(|dirstate_node| {
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
414 let fs_path = &directory_entry.fs_path;
50864
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
415 let basename =
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
416 dirstate_node.base_name(self.dmap.on_disk)?.as_bytes();
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
417 let fs_path = fs_path.join(get_path_from_bytes(basename));
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
418 if !Self::should_visit(
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
419 &children_set,
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
420 HgPath::new(basename),
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
421 ) {
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
422 return Ok(());
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
423 }
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
424 match std::fs::symlink_metadata(&fs_path) {
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
425 Ok(fs_metadata) => {
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
426 let file_type = fs_metadata.file_type().into();
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
427 let entry = DirEntry {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
428 hg_path: Cow::Borrowed(
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
429 dirstate_node
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
430 .full_path(self.dmap.on_disk)?,
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
431 ),
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
432 fs_path: Cow::Borrowed(&fs_path),
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
433 symlink_metadata: Some(fs_metadata),
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
434 file_type,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
435 };
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
436 self.traverse_fs_and_dirstate(
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
437 &entry,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
438 dirstate_node,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
439 has_ignored_ancestor,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
440 )
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
441 }
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
442 Err(e) if e.kind() == std::io::ErrorKind::NotFound => {
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
443 self.traverse_dirstate_only(dirstate_node)
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
444 }
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
445 Err(error) => {
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
446 let hg_path =
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
447 dirstate_node.full_path(self.dmap.on_disk)?;
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
448 self.io_error(error, hg_path);
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
449 Ok(())
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
450 }
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
451 }
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
452 })
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
453 .collect::<Result<_, _>>()?;
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
454
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
455 // We don’t know, so conservatively say this isn’t the case
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
456 let children_all_have_dirstate_node_or_are_ignored = false;
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
457
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
458 return Ok(children_all_have_dirstate_node_or_are_ignored);
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
459 }
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
460
50294
bae51b50a5cf dirstate-v2: fix an incorrect handling of readdir errors
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49930
diff changeset
461 let readdir_succeeded;
47115
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
462 let mut fs_entries = if let Ok(entries) = self.read_dir(
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
463 directory_hg_path,
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
464 &directory_entry.fs_path,
47115
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
465 is_at_repo_root,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
466 ) {
50294
bae51b50a5cf dirstate-v2: fix an incorrect handling of readdir errors
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49930
diff changeset
467 readdir_succeeded = true;
47115
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
468 entries
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
469 } else {
47346
5e12b6bfdd3e dirstate-tree: Fix status algorithm with unreadable directory
Simon Sapin <simon.sapin@octobus.net>
parents: 47338
diff changeset
470 // Treat an unreadable directory (typically because of insufficient
5e12b6bfdd3e dirstate-tree: Fix status algorithm with unreadable directory
Simon Sapin <simon.sapin@octobus.net>
parents: 47338
diff changeset
471 // permissions) like an empty directory. `self.read_dir` has
5e12b6bfdd3e dirstate-tree: Fix status algorithm with unreadable directory
Simon Sapin <simon.sapin@octobus.net>
parents: 47338
diff changeset
472 // already called `self.io_error` so a warning will be emitted.
50294
bae51b50a5cf dirstate-v2: fix an incorrect handling of readdir errors
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49930
diff changeset
473 // We still need to remember that there was an error so that we
bae51b50a5cf dirstate-v2: fix an incorrect handling of readdir errors
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49930
diff changeset
474 // know not to cache this result.
bae51b50a5cf dirstate-v2: fix an incorrect handling of readdir errors
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49930
diff changeset
475 readdir_succeeded = false;
47346
5e12b6bfdd3e dirstate-tree: Fix status algorithm with unreadable directory
Simon Sapin <simon.sapin@octobus.net>
parents: 47338
diff changeset
476 Vec::new()
47115
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
477 };
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
478
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
479 // `merge_join_by` requires both its input iterators to be sorted:
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
480
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
481 let dirstate_nodes = dirstate_nodes.sorted();
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
482 // `sort_unstable_by_key` doesn’t allow keys borrowing from the value:
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
483 // https://github.com/rust-lang/rust/issues/34162
49567
6b32d39e9a67 rust-status: make `DirEntry` attributes clearer
Raphaël Gomès <rgomes@octobus.net>
parents: 49520
diff changeset
484 fs_entries.sort_unstable_by(|e1, e2| e1.hg_path.cmp(&e2.hg_path));
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
485
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
486 // Propagate here any error that would happen inside the comparison
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
487 // callback below
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
488 for dirstate_node in &dirstate_nodes {
47336
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
489 dirstate_node.base_name(self.dmap.on_disk)?;
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
490 }
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
491 itertools::merge_join_by(
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
492 dirstate_nodes,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
493 &fs_entries,
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
494 |dirstate_node, fs_entry| {
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
495 // This `unwrap` never panics because we already propagated
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
496 // those errors above
47336
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
497 dirstate_node
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
498 .base_name(self.dmap.on_disk)
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
499 .unwrap()
49567
6b32d39e9a67 rust-status: make `DirEntry` attributes clearer
Raphaël Gomès <rgomes@octobus.net>
parents: 49520
diff changeset
500 .cmp(&fs_entry.hg_path)
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
501 },
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
502 )
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
503 .par_bridge()
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
504 .map(|pair| {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
505 use itertools::EitherOrBoth::*;
50864
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
506 let basename = match &pair {
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
507 Left(dirstate_node) | Both(dirstate_node, _) => HgPath::new(
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
508 dirstate_node.base_name(self.dmap.on_disk)?.as_bytes(),
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
509 ),
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
510 Right(fs_entry) => &fs_entry.hg_path,
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
511 };
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
512 if !Self::should_visit(&children_set, basename) {
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
513 return Ok(false);
76387f79befe rust-status: only visit parts of the tree requested by the matcher
Spencer Baugh <sbaugh@janestreet.com>
parents: 50863
diff changeset
514 }
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
515 let has_dirstate_node_or_is_ignored = match pair {
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
516 Both(dirstate_node, fs_entry) => {
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
517 self.traverse_fs_and_dirstate(
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
518 fs_entry,
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
519 dirstate_node,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
520 has_ignored_ancestor,
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
521 )?;
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
522 true
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
523 }
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
524 Left(dirstate_node) => {
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
525 self.traverse_dirstate_only(dirstate_node)?;
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
526 true
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
527 }
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
528 Right(fs_entry) => self.traverse_fs_only(
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
529 has_ignored_ancestor.force(&self.ignore_fn),
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
530 directory_hg_path,
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
531 fs_entry,
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
532 ),
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
533 };
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
534 Ok(has_dirstate_node_or_is_ignored)
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
535 })
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
536 .try_reduce(|| true, |a, b| Ok(a && b))
50294
bae51b50a5cf dirstate-v2: fix an incorrect handling of readdir errors
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49930
diff changeset
537 .map(|res| res && readdir_succeeded)
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
538 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
539
49520
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
540 fn traverse_fs_and_dirstate<'ancestor>(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
541 &self,
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
542 fs_entry: &DirEntry,
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
543 dirstate_node: NodeRef<'tree, 'on_disk>,
49520
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
544 has_ignored_ancestor: &'ancestor HasIgnoredAncestor<'ancestor>,
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
545 ) -> Result<(), DirstateV2ParseError> {
49555
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
546 let outdated_dircache =
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
547 self.check_for_outdated_directory_cache(&dirstate_node)?;
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
548 let hg_path = &dirstate_node.full_path_borrowed(self.dmap.on_disk)?;
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
549 let file_or_symlink = fs_entry.is_file() || fs_entry.is_symlink();
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
550 if !file_or_symlink {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
551 // If we previously had a file here, it was removed (with
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
552 // `hg rm` or similar) or deleted before it could be
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
553 // replaced by a directory or something else.
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
554 self.mark_removed_or_deleted_if_file(&dirstate_node)?;
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
555 }
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
556 if let Some(bad_type) = fs_entry.is_bad() {
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
557 if self.matcher.exact_match(hg_path) {
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
558 let path = dirstate_node.full_path(self.dmap.on_disk)?;
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
559 self.outcome.lock().unwrap().bad.push((
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
560 path.to_owned().into(),
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
561 BadMatch::BadType(bad_type),
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
562 ))
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
563 }
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
564 }
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
565 if fs_entry.is_dir() {
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
566 if self.options.collect_traversed_dirs {
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
567 self.outcome
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
568 .lock()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
569 .unwrap()
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
570 .traversed
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
571 .push(hg_path.detach_from_tree())
47114
aeb03758f37a dirstate-tree: Ignore FIFOs etc. in the status algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47113
diff changeset
572 }
49520
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
573 let is_ignored = HasIgnoredAncestor::create(
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
574 Some(has_ignored_ancestor),
49520
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
575 hg_path,
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
576 );
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
577 let is_at_repo_root = false;
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
578 let children_all_have_dirstate_node_or_are_ignored = self
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
579 .traverse_fs_directory_and_dirstate(
49520
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
580 &is_ignored,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
581 dirstate_node.children(self.dmap.on_disk)?,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
582 hg_path,
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
583 fs_entry,
48193
320de901896a dirstate-v2: Truncate directory mtimes to 31 bits of seconds
Simon Sapin <simon.sapin@octobus.net>
parents: 48192
diff changeset
584 dirstate_node.cached_directory_mtime()?,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
585 is_at_repo_root,
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
586 )?;
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
587 self.maybe_save_directory_mtime(
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
588 children_all_have_dirstate_node_or_are_ignored,
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
589 fs_entry,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
590 dirstate_node,
49555
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
591 outdated_dircache,
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
592 )?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
593 } else {
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
594 if file_or_symlink && self.matcher.matches(hg_path) {
49142
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
595 if let Some(entry) = dirstate_node.entry()? {
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
596 if !entry.any_tracked() {
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
597 // Forward-compat if we start tracking unknown/ignored
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
598 // files for caching reasons
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
599 self.mark_unknown_or_ignored(
49520
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
600 has_ignored_ancestor.force(&self.ignore_fn),
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
601 hg_path,
49142
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
602 );
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
603 }
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
604 if entry.added() {
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
605 self.push_outcome(Outcome::Added, &dirstate_node)?;
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
606 } else if entry.removed() {
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
607 self.push_outcome(Outcome::Removed, &dirstate_node)?;
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
608 } else if entry.modified() {
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
609 self.push_outcome(Outcome::Modified, &dirstate_node)?;
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
610 } else {
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
611 self.handle_normal_file(&dirstate_node, fs_entry)?;
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
612 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
613 } else {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
614 // `node.entry.is_none()` indicates a "directory"
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
615 // node, but the filesystem has a file
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
616 self.mark_unknown_or_ignored(
49520
eb02decdf0ab dirstate-v2: skip evaluation of hgignore regex on cached directories
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49423
diff changeset
617 has_ignored_ancestor.force(&self.ignore_fn),
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
618 hg_path,
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
619 );
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
620 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
621 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
622
47336
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
623 for child_node in dirstate_node.children(self.dmap.on_disk)?.iter()
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
624 {
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
625 self.traverse_dirstate_only(child_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
626 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
627 }
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
628 Ok(())
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
629 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
630
49555
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
631 /// Save directory mtime if applicable.
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
632 ///
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
633 /// `outdated_directory_cache` is `true` if we've just invalidated the
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
634 /// cache for this directory in `check_for_outdated_directory_cache`,
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
635 /// which forces the update.
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
636 fn maybe_save_directory_mtime(
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
637 &self,
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
638 children_all_have_dirstate_node_or_are_ignored: bool,
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
639 directory_entry: &DirEntry,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
640 dirstate_node: NodeRef<'tree, 'on_disk>,
49555
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
641 outdated_directory_cache: bool,
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
642 ) -> Result<(), DirstateV2ParseError> {
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
643 if !children_all_have_dirstate_node_or_are_ignored {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
644 return Ok(());
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
645 }
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
646 // All filesystem directory entries from `read_dir` have a
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
647 // corresponding node in the dirstate, so we can reconstitute the
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
648 // names of those entries without calling `read_dir` again.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
649
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
650 // TODO: use let-else here and below when available:
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
651 // https://github.com/rust-lang/rust/issues/87335
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
652 let status_start = if let Some(status_start) =
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
653 &self.filesystem_time_at_status_start
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
654 {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
655 status_start
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
656 } else {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
657 return Ok(());
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
658 };
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
659
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
660 // Although the Rust standard library’s `SystemTime` type
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
661 // has nanosecond precision, the times reported for a
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
662 // directory’s (or file’s) modified time may have lower
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
663 // resolution based on the filesystem (for example ext3
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
664 // only stores integer seconds), kernel (see
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
665 // https://stackoverflow.com/a/14393315/1162888), etc.
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
666 let metadata = match directory_entry.symlink_metadata() {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
667 Ok(meta) => meta,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
668 Err(_) => return Ok(()),
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
669 };
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
670
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
671 let directory_mtime = match TruncatedTimestamp::for_reliable_mtime_of(
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
672 &metadata,
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
673 status_start,
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
674 ) {
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
675 Ok(Some(directory_mtime)) => directory_mtime,
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
676 Ok(None) => {
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
677 // The directory was modified too recently,
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
678 // don’t cache its `read_dir` results.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
679 //
51700
7f0cb9ee0534 Backout accidental publication of a large range of revisions
Raphaël Gomès <rgomes@octobus.net>
parents: 51692
diff changeset
680 // 1. A change to this directory (direct child was
7f0cb9ee0534 Backout accidental publication of a large range of revisions
Raphaël Gomès <rgomes@octobus.net>
parents: 51692
diff changeset
681 // added or removed) cause its mtime to be set
7f0cb9ee0534 Backout accidental publication of a large range of revisions
Raphaël Gomès <rgomes@octobus.net>
parents: 51692
diff changeset
682 // (possibly truncated) to `directory_mtime`
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
683 // 2. This `status` algorithm calls `read_dir`
51700
7f0cb9ee0534 Backout accidental publication of a large range of revisions
Raphaël Gomès <rgomes@octobus.net>
parents: 51692
diff changeset
684 // 3. An other change is made to the same directory is
7f0cb9ee0534 Backout accidental publication of a large range of revisions
Raphaël Gomès <rgomes@octobus.net>
parents: 51692
diff changeset
685 // made so that calling `read_dir` agin would give
7f0cb9ee0534 Backout accidental publication of a large range of revisions
Raphaël Gomès <rgomes@octobus.net>
parents: 51692
diff changeset
686 // different results, but soon enough after 1. that
7f0cb9ee0534 Backout accidental publication of a large range of revisions
Raphaël Gomès <rgomes@octobus.net>
parents: 51692
diff changeset
687 // the mtime stays the same
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
688 //
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
689 // On a system where the time resolution poor, this
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
690 // scenario is not unlikely if all three steps are caused
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
691 // by the same script.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
692 return Ok(());
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
693 }
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
694 Err(_) => {
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
695 // OS/libc does not support mtime?
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
696 return Ok(());
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
697 }
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
698 };
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
699 // We’ve observed (through `status_start`) that time has
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
700 // “progressed” since `directory_mtime`, so any further
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
701 // change to this directory is extremely likely to cause a
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
702 // different mtime.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
703 //
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
704 // Having the same mtime again is not entirely impossible
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
705 // since the system clock is not monotonous. It could jump
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
706 // backward to some point before `directory_mtime`, then a
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
707 // directory change could potentially happen during exactly
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
708 // the wrong tick.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
709 //
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
710 // We deem this scenario (unlike the previous one) to be
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
711 // unlikely enough in practice.
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
712
49555
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
713 let is_up_to_date = if let Some(cached) =
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
714 dirstate_node.cached_directory_mtime()?
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
715 {
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
716 !outdated_directory_cache && cached.likely_equal(directory_mtime)
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
717 } else {
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
718 false
8ee3889bab92 rust-status: save new dircache even if just invalidated
Raphaël Gomès <rgomes@octobus.net>
parents: 49554
diff changeset
719 };
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
720 if !is_up_to_date {
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
721 let hg_path = dirstate_node
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
722 .full_path_borrowed(self.dmap.on_disk)?
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
723 .detach_from_tree();
49554
ecf9788cd9c4 rust-status: fix typos and add docstrings to dircache related fields
Raphaël Gomès <rgomes@octobus.net>
parents: 49520
diff changeset
724 self.new_cacheable_directories
48501
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
725 .lock()
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
726 .unwrap()
4afb9627dc77 dirstate-v2: Apply SECOND_AMBIGUOUS to directory mtimes too
Simon Sapin <simon.sapin@octobus.net>
parents: 48454
diff changeset
727 .push((hg_path, directory_mtime))
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
728 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
729 Ok(())
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
730 }
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
731
49142
c4ccd0346f5c rust-status: stop using `state()` in the dispatch logic
Raphaël Gomès <rgomes@octobus.net>
parents: 49141
diff changeset
732 /// A file that is clean in the dirstate was found in the filesystem
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
733 fn handle_normal_file(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
734 &self,
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
735 dirstate_node: &NodeRef<'tree, 'on_disk>,
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
736 fs_entry: &DirEntry,
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
737 ) -> Result<(), DirstateV2ParseError> {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
738 // Keep the low 31 bits
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
739 fn truncate_u64(value: u64) -> i32 {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
740 (value & 0x7FFF_FFFF) as i32
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
741 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
742
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
743 let fs_metadata = match fs_entry.symlink_metadata() {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
744 Ok(meta) => meta,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
745 Err(_) => return Ok(()),
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
746 };
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
747
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
748 let entry = dirstate_node
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
749 .entry()?
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
750 .expect("handle_normal_file called with entry-less node");
47338
f27f2afb15da dirstate-tree: Skip readdir() in `hg status -mard`
Simon Sapin <simon.sapin@octobus.net>
parents: 47336
diff changeset
751 let mode_changed =
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
752 || self.options.check_exec && entry.mode_changed(&fs_metadata);
48022
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47475
diff changeset
753 let size = entry.size();
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47475
diff changeset
754 let size_changed = size != truncate_u64(fs_metadata.len());
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47475
diff changeset
755 if size >= 0 && size_changed && fs_metadata.file_type().is_symlink() {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
756 // issue6456: Size returned may be longer due to encryption
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
757 // on EXT-4 fscrypt. TODO maybe only do it on EXT4?
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
758 self.push_outcome(Outcome::Unsure, dirstate_node)?
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
759 } else if dirstate_node.has_copy_source()
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
760 || entry.is_from_other_parent()
48022
f2a9db29cb2d rust: Make the fields of DirstateEntry private
Simon Sapin <simon.sapin@octobus.net>
parents: 47475
diff changeset
761 || (size >= 0 && (size_changed || mode_changed()))
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
762 {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
763 self.push_outcome(Outcome::Modified, dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
764 } else {
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
765 let mtime_looks_clean = if let Some(dirstate_mtime) =
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
766 entry.truncated_mtime()
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
767 {
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
768 let fs_mtime = TruncatedTimestamp::for_mtime_of(&fs_metadata)
48263
83d0bd45b662 dirstate-v2: actually use sub-second mtime precision
Simon Sapin <simon.sapin@octobus.net>
parents: 48260
diff changeset
769 .expect("OS/libc does not support mtime?");
48391
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
770 // There might be a change in the future if for example the
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
771 // internal clock become off while process run, but this is a
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
772 // case where the issues the user would face
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
773 // would be a lot worse and there is nothing we
b80e5e75d51e dirstate: remove `lastnormaltime` mechanism
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48263
diff changeset
774 // can really do.
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
775 fs_mtime.likely_equal(dirstate_mtime)
48260
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
776 } else {
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
777 // No mtime in the dirstate entry
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
778 false
48260
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
779 };
269ff8978086 dirstate: store mtimes with nanosecond precision in memory
Simon Sapin <simon.sapin@octobus.net>
parents: 48257
diff changeset
780 if !mtime_looks_clean {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
781 self.push_outcome(Outcome::Unsure, dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
782 } else if self.options.list_clean {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
783 self.push_outcome(Outcome::Clean, dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
784 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
785 }
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
786 Ok(())
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
787 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
788
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
789 /// A node in the dirstate tree has no corresponding filesystem entry
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
790 fn traverse_dirstate_only(
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
791 &self,
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
792 dirstate_node: NodeRef<'tree, 'on_disk>,
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
793 ) -> Result<(), DirstateV2ParseError> {
47474
c657beacdf2e dirstate-v2: Drop cached read_dir results after .hgignore changes
Simon Sapin <simon.sapin@octobus.net>
parents: 47409
diff changeset
794 self.check_for_outdated_directory_cache(&dirstate_node)?;
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
795 self.mark_removed_or_deleted_if_file(&dirstate_node)?;
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
796 dirstate_node
47336
8d0260d0dbc9 dirstate-v2: Make the dirstate bytes buffer available in more places
Simon Sapin <simon.sapin@octobus.net>
parents: 47335
diff changeset
797 .children(self.dmap.on_disk)?
47333
69530e5d4fe5 dirstate-tree: Add `NodeRef` and `ChildNodesRef` enums
Simon Sapin <simon.sapin@octobus.net>
parents: 47331
diff changeset
798 .par_iter()
47335
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
799 .map(|child_node| self.traverse_dirstate_only(child_node))
ed1583a845d2 dirstate-v2: Make more APIs fallible, returning Result
Simon Sapin <simon.sapin@octobus.net>
parents: 47333
diff changeset
800 .collect()
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
801 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
802
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
803 /// A node in the dirstate tree has no corresponding *file* on the
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
804 /// filesystem
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
805 ///
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
806 /// Does nothing on a "directory" node
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
807 fn mark_removed_or_deleted_if_file(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
808 &self,
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
809 dirstate_node: &NodeRef<'tree, 'on_disk>,
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
810 ) -> Result<(), DirstateV2ParseError> {
49141
126d253eb274 rust-status: stop using `state()` in `handle_normal_file`
Raphaël Gomès <rgomes@octobus.net>
parents: 49128
diff changeset
811 if let Some(entry) = dirstate_node.entry()? {
126d253eb274 rust-status: stop using `state()` in `handle_normal_file`
Raphaël Gomès <rgomes@octobus.net>
parents: 49128
diff changeset
812 if !entry.any_tracked() {
126d253eb274 rust-status: stop using `state()` in `handle_normal_file`
Raphaël Gomès <rgomes@octobus.net>
parents: 49128
diff changeset
813 // Future-compat for when we start storing ignored and unknown
126d253eb274 rust-status: stop using `state()` in `handle_normal_file`
Raphaël Gomès <rgomes@octobus.net>
parents: 49128
diff changeset
814 // files for caching reasons
126d253eb274 rust-status: stop using `state()` in `handle_normal_file`
Raphaël Gomès <rgomes@octobus.net>
parents: 49128
diff changeset
815 return Ok(());
126d253eb274 rust-status: stop using `state()` in `handle_normal_file`
Raphaël Gomès <rgomes@octobus.net>
parents: 49128
diff changeset
816 }
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
817 let path = dirstate_node.full_path(self.dmap.on_disk)?;
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
818 if self.matcher.matches(path) {
49141
126d253eb274 rust-status: stop using `state()` in `handle_normal_file`
Raphaël Gomès <rgomes@octobus.net>
parents: 49128
diff changeset
819 if entry.removed() {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
820 self.push_outcome(Outcome::Removed, dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
821 } else {
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
822 self.push_outcome(Outcome::Deleted, dirstate_node)?
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
823 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
824 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
825 }
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
826 Ok(())
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
827 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
828
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
829 /// Something in the filesystem has no corresponding dirstate node
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
830 ///
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
831 /// Returns whether that path is ignored
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
832 fn traverse_fs_only(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
833 &self,
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
834 has_ignored_ancestor: bool,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
835 directory_hg_path: &HgPath,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
836 fs_entry: &DirEntry,
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
837 ) -> bool {
49567
6b32d39e9a67 rust-status: make `DirEntry` attributes clearer
Raphaël Gomès <rgomes@octobus.net>
parents: 49520
diff changeset
838 let hg_path = directory_hg_path.join(&fs_entry.hg_path);
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
839 let file_or_symlink = fs_entry.is_file() || fs_entry.is_symlink();
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
840 if fs_entry.is_dir() {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
841 let is_ignored =
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
842 has_ignored_ancestor || (self.ignore_fn)(&hg_path);
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
843 let traverse_children = if is_ignored {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
844 // Descendants of an ignored directory are all ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
845 self.options.list_ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
846 } else {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
847 // Descendants of an unknown directory may be either unknown or
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
848 // ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
849 self.options.list_unknown || self.options.list_ignored
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
850 };
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
851 if traverse_children {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
852 let is_at_repo_root = false;
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
853 if let Ok(children_fs_entries) =
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
854 self.read_dir(&hg_path, &fs_entry.fs_path, is_at_repo_root)
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
855 {
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
856 children_fs_entries.par_iter().for_each(|child_fs_entry| {
47115
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
857 self.traverse_fs_only(
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
858 is_ignored,
1b4f0f819f92 dirstate-tree: Handle I/O errors in status
Simon Sapin <simon.sapin@octobus.net>
parents: 47114
diff changeset
859 &hg_path,
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
860 child_fs_entry,
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
861 );
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
862 })
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
863 }
49423
7e5377bdb66e rust-status: ignored directories are now correctly only listed if opted into
Raphaël Gomès <rgomes@octobus.net>
parents: 49365
diff changeset
864 if self.options.collect_traversed_dirs {
7e5377bdb66e rust-status: ignored directories are now correctly only listed if opted into
Raphaël Gomès <rgomes@octobus.net>
parents: 49365
diff changeset
865 self.outcome.lock().unwrap().traversed.push(hg_path.into())
7e5377bdb66e rust-status: ignored directories are now correctly only listed if opted into
Raphaël Gomès <rgomes@octobus.net>
parents: 49365
diff changeset
866 }
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
867 }
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
868 is_ignored
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
869 } else if file_or_symlink {
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
870 if self.matcher.matches(&hg_path) {
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
871 self.mark_unknown_or_ignored(
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
872 has_ignored_ancestor,
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
873 &BorrowedPath::InMemory(&hg_path),
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
874 )
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
875 } else {
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
876 // We haven’t computed whether this path is ignored. It
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
877 // might not be, and a future run of status might have a
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
878 // different matcher that matches it. So treat it as not
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
879 // ignored. That is, inhibit readdir caching of the parent
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
880 // directory.
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
881 false
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
882 }
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
883 } else {
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
884 // This is neither a directory, a plain file, or a symlink.
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
885 // Treat it like an ignored file.
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
886 true
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
887 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
888 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
889
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
890 /// Returns whether that path is ignored
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
891 fn mark_unknown_or_ignored(
47117
60d852ae7e7b dirstate-tree: Paralellize the status algorithm with Rayon
Simon Sapin <simon.sapin@octobus.net>
parents: 47115
diff changeset
892 &self,
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
893 has_ignored_ancestor: bool,
47347
73ddcedeaadf dirstate-tree: Change status() results to not borrow DirstateMap
Simon Sapin <simon.sapin@octobus.net>
parents: 47346
diff changeset
894 hg_path: &BorrowedPath<'_, 'on_disk>,
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
895 ) -> bool {
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
896 let is_ignored = has_ignored_ancestor || (self.ignore_fn)(hg_path);
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
897 if is_ignored {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
898 if self.options.list_ignored {
48454
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
899 self.push_outcome_without_copy_source(
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
900 Outcome::Ignored,
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
901 hg_path,
473af5cbc209 rhg: Add support for `rhg status --copies`
Simon Sapin <simon.sapin@octobus.net>
parents: 48422
diff changeset
902 )
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
903 }
49930
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
904 } else if self.options.list_unknown {
e98fd81bb151 rust-clippy: fix most warnings in `hg-core`
Raphaël Gomès <rgomes@octobus.net>
parents: 49913
diff changeset
905 self.push_outcome_without_copy_source(Outcome::Unknown, hg_path)
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
906 }
47475
94e38822d395 status: Extend read_dir caching to directories with ignored files
Simon Sapin <simon.sapin@octobus.net>
parents: 47474
diff changeset
907 is_ignored
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
908 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
909 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
910
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
911 /// Since [`std::fs::FileType`] cannot be built directly, we emulate what we
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
912 /// care about.
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
913 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
914 enum FakeFileType {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
915 File,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
916 Directory,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
917 Symlink,
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
918 BadType(BadType),
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
919 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
920
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
921 impl From<std::fs::FileType> for FakeFileType {
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
922 fn from(f: std::fs::FileType) -> Self {
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
923 if f.is_dir() {
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
924 Self::Directory
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
925 } else if f.is_file() {
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
926 Self::File
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
927 } else if f.is_symlink() {
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
928 Self::Symlink
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
929 } else if f.is_fifo() {
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
930 Self::BadType(BadType::FIFO)
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
931 } else if f.is_block_device() {
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
932 Self::BadType(BadType::BlockDevice)
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
933 } else if f.is_char_device() {
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
934 Self::BadType(BadType::CharacterDevice)
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
935 } else if f.is_socket() {
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
936 Self::BadType(BadType::Socket)
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
937 } else {
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
938 Self::BadType(BadType::Unknown)
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
939 }
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
940 }
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
941 }
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
942
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
943 struct DirEntry<'a> {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
944 /// Path as stored in the dirstate, or just the filename for optimization.
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
945 hg_path: HgPathCow<'a>,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
946 /// Filesystem path
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
947 fs_path: Cow<'a, Path>,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
948 /// Lazily computed
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
949 symlink_metadata: Option<std::fs::Metadata>,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
950 /// Already computed for ergonomics.
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
951 file_type: FakeFileType,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
952 }
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
953
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
954 impl<'a> DirEntry<'a> {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
955 /// Returns **unsorted** entries in the given directory, with name,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
956 /// metadata and file type.
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
957 ///
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
958 /// If a `.hg` sub-directory is encountered:
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
959 ///
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
960 /// * At the repository root, ignore that sub-directory
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
961 /// * Elsewhere, we’re listing the content of a sub-repo. Return an empty
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
962 /// list instead.
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
963 fn read_dir(path: &Path, is_at_repo_root: bool) -> io::Result<Vec<Self>> {
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
964 // `read_dir` returns a "not found" error for the empty path
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
965 let at_cwd = path == Path::new("");
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
966 let read_dir_path = if at_cwd { Path::new(".") } else { path };
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
967 let mut results = Vec::new();
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
968 for entry in read_dir_path.read_dir()? {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
969 let entry = entry?;
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
970 let file_type = match entry.file_type() {
48774
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
971 Ok(v) => v,
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
972 Err(e) => {
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
973 // race with file deletion?
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
974 if e.kind() == std::io::ErrorKind::NotFound {
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
975 continue;
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
976 } else {
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
977 return Err(e);
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
978 }
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
979 }
dcec16e799dd status: fix hg status race against file deletion
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 48263
diff changeset
980 };
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
981 let file_name = entry.file_name();
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
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diff changeset
982 // FIXME don't do this when cached
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
983 if file_name == ".hg" {
47113
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Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
984 if is_at_repo_root {
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
985 // Skip the repo’s own .hg (might be a symlink)
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
986 continue;
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
987 } else if file_type.is_dir() {
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
988 // A .hg sub-directory at another location means a subrepo,
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
989 // skip it entirely.
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
990 return Ok(Vec::new());
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
991 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
992 }
48745
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
993 let full_path = if at_cwd {
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
994 file_name.clone().into()
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
995 } else {
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
996 entry.path()
94e36b230990 status: prefer relative paths in Rust code
Simon Sapin <simon.sapin@octobus.net>
parents: 48501
diff changeset
997 };
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
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diff changeset
998 let filename =
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
999 Cow::Owned(get_bytes_from_os_string(file_name).into());
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
1000 let file_type = FakeFileType::from(file_type);
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
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parents: 47112
diff changeset
1001 results.push(DirEntry {
49568
da48f170d203 rust-status: query fs traversal metadata lazily
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parents: 49567
diff changeset
1002 hg_path: filename,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1003 fs_path: Cow::Owned(full_path.to_path_buf()),
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Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1004 symlink_metadata: None,
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1005 file_type,
47113
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diff changeset
1006 })
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
1007 }
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
1008 Ok(results)
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
1009 }
49568
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1010
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1011 fn symlink_metadata(&self) -> Result<std::fs::Metadata, std::io::Error> {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1012 match &self.symlink_metadata {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1013 Some(meta) => Ok(meta.clone()),
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1014 None => std::fs::symlink_metadata(&self.fs_path),
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1015 }
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1016 }
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1017
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1018 fn is_dir(&self) -> bool {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1019 self.file_type == FakeFileType::Directory
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1020 }
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1021
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1022 fn is_file(&self) -> bool {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1023 self.file_type == FakeFileType::File
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1024 }
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1025
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1026 fn is_symlink(&self) -> bool {
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1027 self.file_type == FakeFileType::Symlink
da48f170d203 rust-status: query fs traversal metadata lazily
Raphaël Gomès <rgomes@octobus.net>
parents: 49567
diff changeset
1028 }
50862
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
1029
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
1030 fn is_bad(&self) -> Option<BadType> {
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
1031 match self.file_type {
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
1032 FakeFileType::BadType(ty) => Some(ty),
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
1033 _ => None,
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
1034 }
5efccea9cf38 rust-status: explicitly track bad file types
Spencer Baugh <sbaugh@janestreet.com>
parents: 50321
diff changeset
1035 }
47113
be579775c2d9 dirstate-tree: Add the new `status()` algorithm
Simon Sapin <simon.sapin@octobus.net>
parents: 47112
diff changeset
1036 }
47349
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1037
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1038 /// Return the `mtime` of a temporary file newly-created in the `.hg` directory
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1039 /// of the give repository.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1040 ///
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1041 /// This is similar to `SystemTime::now()`, with the result truncated to the
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1042 /// same time resolution as other files’ modification times. Using `.hg`
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1043 /// instead of the system’s default temporary directory (such as `/tmp`) makes
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1044 /// it more likely the temporary file is in the same disk partition as contents
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1045 /// of the working directory, which can matter since different filesystems may
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1046 /// store timestamps with different resolutions.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1047 ///
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1048 /// This may fail, typically if we lack write permissions. In that case we
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1049 /// should continue the `status()` algoritm anyway and consider the current
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1050 /// date/time to be unknown.
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1051 fn filesystem_now(repo_root: &Path) -> Result<SystemTime, io::Error> {
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1052 tempfile::tempfile_in(repo_root.join(".hg"))?
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1053 .metadata()?
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1054 .modified()
7138c863d0a1 dirstate-v2: Skip readdir in status based on directory mtime
Simon Sapin <simon.sapin@octobus.net>
parents: 47347
diff changeset
1055 }