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@@ -1,901 +1,903 b'' | |||||
1 | use crate::dirstate::entry::TruncatedTimestamp; |
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1 | use crate::dirstate::entry::TruncatedTimestamp; | |
2 | use crate::dirstate::status::IgnoreFnType; |
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2 | use crate::dirstate::status::IgnoreFnType; | |
3 | use crate::dirstate::status::StatusPath; |
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3 | use crate::dirstate::status::StatusPath; | |
4 | use crate::dirstate_tree::dirstate_map::BorrowedPath; |
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4 | use crate::dirstate_tree::dirstate_map::BorrowedPath; | |
5 | use crate::dirstate_tree::dirstate_map::ChildNodesRef; |
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5 | use crate::dirstate_tree::dirstate_map::ChildNodesRef; | |
6 | use crate::dirstate_tree::dirstate_map::DirstateMap; |
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6 | use crate::dirstate_tree::dirstate_map::DirstateMap; | |
7 | use crate::dirstate_tree::dirstate_map::DirstateVersion; |
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7 | use crate::dirstate_tree::dirstate_map::DirstateVersion; | |
8 | use crate::dirstate_tree::dirstate_map::NodeRef; |
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8 | use crate::dirstate_tree::dirstate_map::NodeRef; | |
9 | use crate::dirstate_tree::on_disk::DirstateV2ParseError; |
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9 | use crate::dirstate_tree::on_disk::DirstateV2ParseError; | |
10 | use crate::matchers::get_ignore_function; |
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10 | use crate::matchers::get_ignore_function; | |
11 | use crate::matchers::Matcher; |
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11 | use crate::matchers::Matcher; | |
12 | use crate::utils::files::get_bytes_from_os_string; |
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12 | use crate::utils::files::get_bytes_from_os_string; | |
13 | use crate::utils::files::get_path_from_bytes; |
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13 | use crate::utils::files::get_path_from_bytes; | |
14 | use crate::utils::hg_path::HgPath; |
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14 | use crate::utils::hg_path::HgPath; | |
15 | use crate::BadMatch; |
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15 | use crate::BadMatch; | |
16 | use crate::DirstateStatus; |
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16 | use crate::DirstateStatus; | |
17 | use crate::HgPathBuf; |
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17 | use crate::HgPathBuf; | |
18 | use crate::HgPathCow; |
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18 | use crate::HgPathCow; | |
19 | use crate::PatternFileWarning; |
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19 | use crate::PatternFileWarning; | |
20 | use crate::StatusError; |
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20 | use crate::StatusError; | |
21 | use crate::StatusOptions; |
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21 | use crate::StatusOptions; | |
22 | use micro_timer::timed; |
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22 | use micro_timer::timed; | |
23 | use once_cell::sync::OnceCell; |
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23 | use once_cell::sync::OnceCell; | |
24 | use rayon::prelude::*; |
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24 | use rayon::prelude::*; | |
25 | use sha1::{Digest, Sha1}; |
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25 | use sha1::{Digest, Sha1}; | |
26 | use std::borrow::Cow; |
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26 | use std::borrow::Cow; | |
27 | use std::io; |
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27 | use std::io; | |
28 | use std::path::Path; |
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28 | use std::path::Path; | |
29 | use std::path::PathBuf; |
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29 | use std::path::PathBuf; | |
30 | use std::sync::Mutex; |
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30 | use std::sync::Mutex; | |
31 | use std::time::SystemTime; |
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31 | use std::time::SystemTime; | |
32 |
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32 | |||
33 | /// Returns the status of the working directory compared to its parent |
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33 | /// Returns the status of the working directory compared to its parent | |
34 | /// changeset. |
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34 | /// changeset. | |
35 | /// |
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35 | /// | |
36 | /// This algorithm is based on traversing the filesystem tree (`fs` in function |
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36 | /// This algorithm is based on traversing the filesystem tree (`fs` in function | |
37 | /// and variable names) and dirstate tree at the same time. The core of this |
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37 | /// and variable names) and dirstate tree at the same time. The core of this | |
38 | /// traversal is the recursive `traverse_fs_directory_and_dirstate` function |
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38 | /// traversal is the recursive `traverse_fs_directory_and_dirstate` function | |
39 | /// and its use of `itertools::merge_join_by`. When reaching a path that only |
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39 | /// and its use of `itertools::merge_join_by`. When reaching a path that only | |
40 | /// exists in one of the two trees, depending on information requested by |
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40 | /// exists in one of the two trees, depending on information requested by | |
41 | /// `options` we may need to traverse the remaining subtree. |
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41 | /// `options` we may need to traverse the remaining subtree. | |
42 | #[timed] |
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42 | #[timed] | |
43 | pub fn status<'dirstate>( |
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43 | pub fn status<'dirstate>( | |
44 | dmap: &'dirstate mut DirstateMap, |
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44 | dmap: &'dirstate mut DirstateMap, | |
45 | matcher: &(dyn Matcher + Sync), |
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45 | matcher: &(dyn Matcher + Sync), | |
46 | root_dir: PathBuf, |
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46 | root_dir: PathBuf, | |
47 | ignore_files: Vec<PathBuf>, |
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47 | ignore_files: Vec<PathBuf>, | |
48 | options: StatusOptions, |
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48 | options: StatusOptions, | |
49 | ) -> Result<(DirstateStatus<'dirstate>, Vec<PatternFileWarning>), StatusError> |
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49 | ) -> Result<(DirstateStatus<'dirstate>, Vec<PatternFileWarning>), StatusError> | |
50 | { |
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50 | { | |
51 | // Force the global rayon threadpool to not exceed 16 concurrent threads. |
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51 | // Force the global rayon threadpool to not exceed 16 concurrent threads. | |
52 | // This is a stop-gap measure until we figure out why using more than 16 |
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52 | // This is a stop-gap measure until we figure out why using more than 16 | |
53 | // threads makes `status` slower for each additional thread. |
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53 | // threads makes `status` slower for each additional thread. | |
54 | // We use `ok()` in case the global threadpool has already been |
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54 | // We use `ok()` in case the global threadpool has already been | |
55 | // instantiated in `rhg` or some other caller. |
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55 | // instantiated in `rhg` or some other caller. | |
56 | // TODO find the underlying cause and fix it, then remove this. |
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56 | // TODO find the underlying cause and fix it, then remove this. | |
57 | rayon::ThreadPoolBuilder::new() |
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57 | rayon::ThreadPoolBuilder::new() | |
58 | .num_threads(16) |
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58 | .num_threads(16) | |
59 | .build_global() |
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59 | .build_global() | |
60 | .ok(); |
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60 | .ok(); | |
61 |
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61 | |||
62 | let (ignore_fn, warnings, patterns_changed): (IgnoreFnType, _, _) = |
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62 | let (ignore_fn, warnings, patterns_changed): (IgnoreFnType, _, _) = | |
63 | if options.list_ignored || options.list_unknown { |
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63 | if options.list_ignored || options.list_unknown { | |
64 | let (ignore_fn, warnings, changed) = match dmap.dirstate_version { |
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64 | let (ignore_fn, warnings, changed) = match dmap.dirstate_version { | |
65 | DirstateVersion::V1 => { |
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65 | DirstateVersion::V1 => { | |
66 | let (ignore_fn, warnings) = get_ignore_function( |
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66 | let (ignore_fn, warnings) = get_ignore_function( | |
67 | ignore_files, |
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67 | ignore_files, | |
68 | &root_dir, |
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68 | &root_dir, | |
69 | &mut |_pattern_bytes| {}, |
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69 | &mut |_pattern_bytes| {}, | |
70 | )?; |
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70 | )?; | |
71 | (ignore_fn, warnings, None) |
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71 | (ignore_fn, warnings, None) | |
72 | } |
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72 | } | |
73 | DirstateVersion::V2 => { |
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73 | DirstateVersion::V2 => { | |
74 | let mut hasher = Sha1::new(); |
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74 | let mut hasher = Sha1::new(); | |
75 | let (ignore_fn, warnings) = get_ignore_function( |
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75 | let (ignore_fn, warnings) = get_ignore_function( | |
76 | ignore_files, |
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76 | ignore_files, | |
77 | &root_dir, |
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77 | &root_dir, | |
78 | &mut |pattern_bytes| hasher.update(pattern_bytes), |
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78 | &mut |pattern_bytes| hasher.update(pattern_bytes), | |
79 | )?; |
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79 | )?; | |
80 | let new_hash = *hasher.finalize().as_ref(); |
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80 | let new_hash = *hasher.finalize().as_ref(); | |
81 | let changed = new_hash != dmap.ignore_patterns_hash; |
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81 | let changed = new_hash != dmap.ignore_patterns_hash; | |
82 | dmap.ignore_patterns_hash = new_hash; |
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82 | dmap.ignore_patterns_hash = new_hash; | |
83 | (ignore_fn, warnings, Some(changed)) |
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83 | (ignore_fn, warnings, Some(changed)) | |
84 | } |
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84 | } | |
85 | }; |
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85 | }; | |
86 | (ignore_fn, warnings, changed) |
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86 | (ignore_fn, warnings, changed) | |
87 | } else { |
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87 | } else { | |
88 | (Box::new(|&_| true), vec![], None) |
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88 | (Box::new(|&_| true), vec![], None) | |
89 | }; |
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89 | }; | |
90 |
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90 | |||
91 | let filesystem_time_at_status_start = |
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91 | let filesystem_time_at_status_start = | |
92 | filesystem_now(&root_dir).ok().map(TruncatedTimestamp::from); |
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92 | filesystem_now(&root_dir).ok().map(TruncatedTimestamp::from); | |
93 |
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93 | |||
94 | // If the repository is under the current directory, prefer using a |
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94 | // If the repository is under the current directory, prefer using a | |
95 | // relative path, so the kernel needs to traverse fewer directory in every |
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95 | // relative path, so the kernel needs to traverse fewer directory in every | |
96 | // call to `read_dir` or `symlink_metadata`. |
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96 | // call to `read_dir` or `symlink_metadata`. | |
97 | // This is effective in the common case where the current directory is the |
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97 | // This is effective in the common case where the current directory is the | |
98 | // repository root. |
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98 | // repository root. | |
99 |
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99 | |||
100 | // TODO: Better yet would be to use libc functions like `openat` and |
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100 | // TODO: Better yet would be to use libc functions like `openat` and | |
101 | // `fstatat` to remove such repeated traversals entirely, but the standard |
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101 | // `fstatat` to remove such repeated traversals entirely, but the standard | |
102 | // library does not provide APIs based on those. |
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102 | // library does not provide APIs based on those. | |
103 | // Maybe with a crate like https://crates.io/crates/openat instead? |
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103 | // Maybe with a crate like https://crates.io/crates/openat instead? | |
104 | let root_dir = if let Some(relative) = std::env::current_dir() |
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104 | let root_dir = if let Some(relative) = std::env::current_dir() | |
105 | .ok() |
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105 | .ok() | |
106 | .and_then(|cwd| root_dir.strip_prefix(cwd).ok()) |
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106 | .and_then(|cwd| root_dir.strip_prefix(cwd).ok()) | |
107 | { |
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107 | { | |
108 | relative |
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108 | relative | |
109 | } else { |
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109 | } else { | |
110 | &root_dir |
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110 | &root_dir | |
111 | }; |
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111 | }; | |
112 |
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112 | |||
113 | let outcome = DirstateStatus { |
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113 | let outcome = DirstateStatus { | |
114 | filesystem_time_at_status_start, |
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114 | filesystem_time_at_status_start, | |
115 | ..Default::default() |
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115 | ..Default::default() | |
116 | }; |
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116 | }; | |
117 | let common = StatusCommon { |
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117 | let common = StatusCommon { | |
118 | dmap, |
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118 | dmap, | |
119 | options, |
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119 | options, | |
120 | matcher, |
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120 | matcher, | |
121 | ignore_fn, |
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121 | ignore_fn, | |
122 | outcome: Mutex::new(outcome), |
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122 | outcome: Mutex::new(outcome), | |
123 | ignore_patterns_have_changed: patterns_changed, |
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123 | ignore_patterns_have_changed: patterns_changed, | |
124 | new_cachable_directories: Default::default(), |
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124 | new_cacheable_directories: Default::default(), | |
125 | outated_cached_directories: Default::default(), |
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125 | outdated_cached_directories: Default::default(), | |
126 | filesystem_time_at_status_start, |
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126 | filesystem_time_at_status_start, | |
127 | }; |
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127 | }; | |
128 | let is_at_repo_root = true; |
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128 | let is_at_repo_root = true; | |
129 | let hg_path = &BorrowedPath::OnDisk(HgPath::new("")); |
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129 | let hg_path = &BorrowedPath::OnDisk(HgPath::new("")); | |
130 | let has_ignored_ancestor = HasIgnoredAncestor::create(None, hg_path); |
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130 | let has_ignored_ancestor = HasIgnoredAncestor::create(None, hg_path); | |
131 | let root_cached_mtime = None; |
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131 | let root_cached_mtime = None; | |
132 | let root_dir_metadata = None; |
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132 | let root_dir_metadata = None; | |
133 | // If the path we have for the repository root is a symlink, do follow it. |
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133 | // If the path we have for the repository root is a symlink, do follow it. | |
134 | // (As opposed to symlinks within the working directory which are not |
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134 | // (As opposed to symlinks within the working directory which are not | |
135 | // followed, using `std::fs::symlink_metadata`.) |
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135 | // followed, using `std::fs::symlink_metadata`.) | |
136 | common.traverse_fs_directory_and_dirstate( |
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136 | common.traverse_fs_directory_and_dirstate( | |
137 | &has_ignored_ancestor, |
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137 | &has_ignored_ancestor, | |
138 | dmap.root.as_ref(), |
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138 | dmap.root.as_ref(), | |
139 | hg_path, |
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139 | hg_path, | |
140 | &root_dir, |
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140 | &root_dir, | |
141 | root_dir_metadata, |
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141 | root_dir_metadata, | |
142 | root_cached_mtime, |
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142 | root_cached_mtime, | |
143 | is_at_repo_root, |
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143 | is_at_repo_root, | |
144 | )?; |
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144 | )?; | |
145 | let mut outcome = common.outcome.into_inner().unwrap(); |
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145 | let mut outcome = common.outcome.into_inner().unwrap(); | |
146 | let new_cachable = common.new_cachable_directories.into_inner().unwrap(); |
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146 | let new_cacheable = common.new_cacheable_directories.into_inner().unwrap(); | |
147 | let outdated = common.outated_cached_directories.into_inner().unwrap(); |
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147 | let outdated = common.outdated_cached_directories.into_inner().unwrap(); | |
148 |
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148 | |||
149 | outcome.dirty = common.ignore_patterns_have_changed == Some(true) |
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149 | outcome.dirty = common.ignore_patterns_have_changed == Some(true) | |
150 | || !outdated.is_empty() |
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150 | || !outdated.is_empty() | |
151 | || (!new_cachable.is_empty() |
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151 | || (!new_cacheable.is_empty() | |
152 | && dmap.dirstate_version == DirstateVersion::V2); |
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152 | && dmap.dirstate_version == DirstateVersion::V2); | |
153 |
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153 | |||
154 | // Remove outdated mtimes before adding new mtimes, in case a given |
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154 | // Remove outdated mtimes before adding new mtimes, in case a given | |
155 | // directory is both |
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155 | // directory is both | |
156 | for path in &outdated { |
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156 | for path in &outdated { | |
157 | dmap.clear_cached_mtime(path)?; |
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157 | dmap.clear_cached_mtime(path)?; | |
158 | } |
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158 | } | |
159 | for (path, mtime) in &new_cachable { |
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159 | for (path, mtime) in &new_cacheable { | |
160 | dmap.set_cached_mtime(path, *mtime)?; |
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160 | dmap.set_cached_mtime(path, *mtime)?; | |
161 | } |
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161 | } | |
162 |
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162 | |||
163 | Ok((outcome, warnings)) |
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163 | Ok((outcome, warnings)) | |
164 | } |
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164 | } | |
165 |
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165 | |||
166 | /// Bag of random things needed by various parts of the algorithm. Reduces the |
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166 | /// Bag of random things needed by various parts of the algorithm. Reduces the | |
167 | /// number of parameters passed to functions. |
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167 | /// number of parameters passed to functions. | |
168 | struct StatusCommon<'a, 'tree, 'on_disk: 'tree> { |
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168 | struct StatusCommon<'a, 'tree, 'on_disk: 'tree> { | |
169 | dmap: &'tree DirstateMap<'on_disk>, |
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169 | dmap: &'tree DirstateMap<'on_disk>, | |
170 | options: StatusOptions, |
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170 | options: StatusOptions, | |
171 | matcher: &'a (dyn Matcher + Sync), |
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171 | matcher: &'a (dyn Matcher + Sync), | |
172 | ignore_fn: IgnoreFnType<'a>, |
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172 | ignore_fn: IgnoreFnType<'a>, | |
173 | outcome: Mutex<DirstateStatus<'on_disk>>, |
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173 | outcome: Mutex<DirstateStatus<'on_disk>>, | |
174 | new_cachable_directories: |
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174 | /// New timestamps of directories to be used for caching their readdirs | |
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175 | new_cacheable_directories: | |||
175 | Mutex<Vec<(Cow<'on_disk, HgPath>, TruncatedTimestamp)>>, |
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176 | Mutex<Vec<(Cow<'on_disk, HgPath>, TruncatedTimestamp)>>, | |
176 | outated_cached_directories: Mutex<Vec<Cow<'on_disk, HgPath>>>, |
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177 | /// Used to invalidate the readdir cache of directories | |
|
178 | outdated_cached_directories: Mutex<Vec<Cow<'on_disk, HgPath>>>, | |||
177 |
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179 | |||
178 | /// Whether ignore files like `.hgignore` have changed since the previous |
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180 | /// Whether ignore files like `.hgignore` have changed since the previous | |
179 | /// time a `status()` call wrote their hash to the dirstate. `None` means |
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181 | /// time a `status()` call wrote their hash to the dirstate. `None` means | |
180 | /// we don’t know as this run doesn’t list either ignored or uknown files |
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182 | /// we don’t know as this run doesn’t list either ignored or uknown files | |
181 | /// and therefore isn’t reading `.hgignore`. |
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183 | /// and therefore isn’t reading `.hgignore`. | |
182 | ignore_patterns_have_changed: Option<bool>, |
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184 | ignore_patterns_have_changed: Option<bool>, | |
183 |
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185 | |||
184 | /// The current time at the start of the `status()` algorithm, as measured |
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186 | /// The current time at the start of the `status()` algorithm, as measured | |
185 | /// and possibly truncated by the filesystem. |
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187 | /// and possibly truncated by the filesystem. | |
186 | filesystem_time_at_status_start: Option<TruncatedTimestamp>, |
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188 | filesystem_time_at_status_start: Option<TruncatedTimestamp>, | |
187 | } |
|
189 | } | |
188 |
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190 | |||
189 | enum Outcome { |
|
191 | enum Outcome { | |
190 | Modified, |
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192 | Modified, | |
191 | Added, |
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193 | Added, | |
192 | Removed, |
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194 | Removed, | |
193 | Deleted, |
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195 | Deleted, | |
194 | Clean, |
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196 | Clean, | |
195 | Ignored, |
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197 | Ignored, | |
196 | Unknown, |
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198 | Unknown, | |
197 | Unsure, |
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199 | Unsure, | |
198 | } |
|
200 | } | |
199 |
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201 | |||
200 | /// Lazy computation of whether a given path has a hgignored |
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202 | /// Lazy computation of whether a given path has a hgignored | |
201 | /// ancestor. |
|
203 | /// ancestor. | |
202 | struct HasIgnoredAncestor<'a> { |
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204 | struct HasIgnoredAncestor<'a> { | |
203 | /// `path` and `parent` constitute the inputs to the computation, |
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205 | /// `path` and `parent` constitute the inputs to the computation, | |
204 | /// `cache` stores the outcome. |
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206 | /// `cache` stores the outcome. | |
205 | path: &'a HgPath, |
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207 | path: &'a HgPath, | |
206 | parent: Option<&'a HasIgnoredAncestor<'a>>, |
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208 | parent: Option<&'a HasIgnoredAncestor<'a>>, | |
207 | cache: OnceCell<bool>, |
|
209 | cache: OnceCell<bool>, | |
208 | } |
|
210 | } | |
209 |
|
211 | |||
210 | impl<'a> HasIgnoredAncestor<'a> { |
|
212 | impl<'a> HasIgnoredAncestor<'a> { | |
211 | fn create( |
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213 | fn create( | |
212 | parent: Option<&'a HasIgnoredAncestor<'a>>, |
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214 | parent: Option<&'a HasIgnoredAncestor<'a>>, | |
213 | path: &'a HgPath, |
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215 | path: &'a HgPath, | |
214 | ) -> HasIgnoredAncestor<'a> { |
|
216 | ) -> HasIgnoredAncestor<'a> { | |
215 | Self { |
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217 | Self { | |
216 | path, |
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218 | path, | |
217 | parent, |
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219 | parent, | |
218 | cache: OnceCell::new(), |
|
220 | cache: OnceCell::new(), | |
219 | } |
|
221 | } | |
220 | } |
|
222 | } | |
221 |
|
223 | |||
222 | fn force<'b>(&self, ignore_fn: &IgnoreFnType<'b>) -> bool { |
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224 | fn force<'b>(&self, ignore_fn: &IgnoreFnType<'b>) -> bool { | |
223 | match self.parent { |
|
225 | match self.parent { | |
224 | None => false, |
|
226 | None => false, | |
225 | Some(parent) => { |
|
227 | Some(parent) => { | |
226 | *(parent.cache.get_or_init(|| { |
|
228 | *(parent.cache.get_or_init(|| { | |
227 | parent.force(ignore_fn) || ignore_fn(&self.path) |
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229 | parent.force(ignore_fn) || ignore_fn(&self.path) | |
228 | })) |
|
230 | })) | |
229 | } |
|
231 | } | |
230 | } |
|
232 | } | |
231 | } |
|
233 | } | |
232 | } |
|
234 | } | |
233 |
|
235 | |||
234 | impl<'a, 'tree, 'on_disk> StatusCommon<'a, 'tree, 'on_disk> { |
|
236 | impl<'a, 'tree, 'on_disk> StatusCommon<'a, 'tree, 'on_disk> { | |
235 | fn push_outcome( |
|
237 | fn push_outcome( | |
236 | &self, |
|
238 | &self, | |
237 | which: Outcome, |
|
239 | which: Outcome, | |
238 | dirstate_node: &NodeRef<'tree, 'on_disk>, |
|
240 | dirstate_node: &NodeRef<'tree, 'on_disk>, | |
239 | ) -> Result<(), DirstateV2ParseError> { |
|
241 | ) -> Result<(), DirstateV2ParseError> { | |
240 | let path = dirstate_node |
|
242 | let path = dirstate_node | |
241 | .full_path_borrowed(self.dmap.on_disk)? |
|
243 | .full_path_borrowed(self.dmap.on_disk)? | |
242 | .detach_from_tree(); |
|
244 | .detach_from_tree(); | |
243 | let copy_source = if self.options.list_copies { |
|
245 | let copy_source = if self.options.list_copies { | |
244 | dirstate_node |
|
246 | dirstate_node | |
245 | .copy_source_borrowed(self.dmap.on_disk)? |
|
247 | .copy_source_borrowed(self.dmap.on_disk)? | |
246 | .map(|source| source.detach_from_tree()) |
|
248 | .map(|source| source.detach_from_tree()) | |
247 | } else { |
|
249 | } else { | |
248 | None |
|
250 | None | |
249 | }; |
|
251 | }; | |
250 | self.push_outcome_common(which, path, copy_source); |
|
252 | self.push_outcome_common(which, path, copy_source); | |
251 | Ok(()) |
|
253 | Ok(()) | |
252 | } |
|
254 | } | |
253 |
|
255 | |||
254 | fn push_outcome_without_copy_source( |
|
256 | fn push_outcome_without_copy_source( | |
255 | &self, |
|
257 | &self, | |
256 | which: Outcome, |
|
258 | which: Outcome, | |
257 | path: &BorrowedPath<'_, 'on_disk>, |
|
259 | path: &BorrowedPath<'_, 'on_disk>, | |
258 | ) { |
|
260 | ) { | |
259 | self.push_outcome_common(which, path.detach_from_tree(), None) |
|
261 | self.push_outcome_common(which, path.detach_from_tree(), None) | |
260 | } |
|
262 | } | |
261 |
|
263 | |||
262 | fn push_outcome_common( |
|
264 | fn push_outcome_common( | |
263 | &self, |
|
265 | &self, | |
264 | which: Outcome, |
|
266 | which: Outcome, | |
265 | path: HgPathCow<'on_disk>, |
|
267 | path: HgPathCow<'on_disk>, | |
266 | copy_source: Option<HgPathCow<'on_disk>>, |
|
268 | copy_source: Option<HgPathCow<'on_disk>>, | |
267 | ) { |
|
269 | ) { | |
268 | let mut outcome = self.outcome.lock().unwrap(); |
|
270 | let mut outcome = self.outcome.lock().unwrap(); | |
269 | let vec = match which { |
|
271 | let vec = match which { | |
270 | Outcome::Modified => &mut outcome.modified, |
|
272 | Outcome::Modified => &mut outcome.modified, | |
271 | Outcome::Added => &mut outcome.added, |
|
273 | Outcome::Added => &mut outcome.added, | |
272 | Outcome::Removed => &mut outcome.removed, |
|
274 | Outcome::Removed => &mut outcome.removed, | |
273 | Outcome::Deleted => &mut outcome.deleted, |
|
275 | Outcome::Deleted => &mut outcome.deleted, | |
274 | Outcome::Clean => &mut outcome.clean, |
|
276 | Outcome::Clean => &mut outcome.clean, | |
275 | Outcome::Ignored => &mut outcome.ignored, |
|
277 | Outcome::Ignored => &mut outcome.ignored, | |
276 | Outcome::Unknown => &mut outcome.unknown, |
|
278 | Outcome::Unknown => &mut outcome.unknown, | |
277 | Outcome::Unsure => &mut outcome.unsure, |
|
279 | Outcome::Unsure => &mut outcome.unsure, | |
278 | }; |
|
280 | }; | |
279 | vec.push(StatusPath { path, copy_source }); |
|
281 | vec.push(StatusPath { path, copy_source }); | |
280 | } |
|
282 | } | |
281 |
|
283 | |||
282 | fn read_dir( |
|
284 | fn read_dir( | |
283 | &self, |
|
285 | &self, | |
284 | hg_path: &HgPath, |
|
286 | hg_path: &HgPath, | |
285 | fs_path: &Path, |
|
287 | fs_path: &Path, | |
286 | is_at_repo_root: bool, |
|
288 | is_at_repo_root: bool, | |
287 | ) -> Result<Vec<DirEntry>, ()> { |
|
289 | ) -> Result<Vec<DirEntry>, ()> { | |
288 | DirEntry::read_dir(fs_path, is_at_repo_root) |
|
290 | DirEntry::read_dir(fs_path, is_at_repo_root) | |
289 | .map_err(|error| self.io_error(error, hg_path)) |
|
291 | .map_err(|error| self.io_error(error, hg_path)) | |
290 | } |
|
292 | } | |
291 |
|
293 | |||
292 | fn io_error(&self, error: std::io::Error, hg_path: &HgPath) { |
|
294 | fn io_error(&self, error: std::io::Error, hg_path: &HgPath) { | |
293 | let errno = error.raw_os_error().expect("expected real OS error"); |
|
295 | let errno = error.raw_os_error().expect("expected real OS error"); | |
294 | self.outcome |
|
296 | self.outcome | |
295 | .lock() |
|
297 | .lock() | |
296 | .unwrap() |
|
298 | .unwrap() | |
297 | .bad |
|
299 | .bad | |
298 | .push((hg_path.to_owned().into(), BadMatch::OsError(errno))) |
|
300 | .push((hg_path.to_owned().into(), BadMatch::OsError(errno))) | |
299 | } |
|
301 | } | |
300 |
|
302 | |||
301 | fn check_for_outdated_directory_cache( |
|
303 | fn check_for_outdated_directory_cache( | |
302 | &self, |
|
304 | &self, | |
303 | dirstate_node: &NodeRef<'tree, 'on_disk>, |
|
305 | dirstate_node: &NodeRef<'tree, 'on_disk>, | |
304 | ) -> Result<(), DirstateV2ParseError> { |
|
306 | ) -> Result<(), DirstateV2ParseError> { | |
305 | if self.ignore_patterns_have_changed == Some(true) |
|
307 | if self.ignore_patterns_have_changed == Some(true) | |
306 | && dirstate_node.cached_directory_mtime()?.is_some() |
|
308 | && dirstate_node.cached_directory_mtime()?.is_some() | |
307 | { |
|
309 | { | |
308 | self.outated_cached_directories.lock().unwrap().push( |
|
310 | self.outdated_cached_directories.lock().unwrap().push( | |
309 | dirstate_node |
|
311 | dirstate_node | |
310 | .full_path_borrowed(self.dmap.on_disk)? |
|
312 | .full_path_borrowed(self.dmap.on_disk)? | |
311 | .detach_from_tree(), |
|
313 | .detach_from_tree(), | |
312 | ) |
|
314 | ) | |
313 | } |
|
315 | } | |
314 | Ok(()) |
|
316 | Ok(()) | |
315 | } |
|
317 | } | |
316 |
|
318 | |||
317 | /// If this returns true, we can get accurate results by only using |
|
319 | /// If this returns true, we can get accurate results by only using | |
318 | /// `symlink_metadata` for child nodes that exist in the dirstate and don’t |
|
320 | /// `symlink_metadata` for child nodes that exist in the dirstate and don’t | |
319 | /// need to call `read_dir`. |
|
321 | /// need to call `read_dir`. | |
320 | fn can_skip_fs_readdir( |
|
322 | fn can_skip_fs_readdir( | |
321 | &self, |
|
323 | &self, | |
322 | directory_metadata: Option<&std::fs::Metadata>, |
|
324 | directory_metadata: Option<&std::fs::Metadata>, | |
323 | cached_directory_mtime: Option<TruncatedTimestamp>, |
|
325 | cached_directory_mtime: Option<TruncatedTimestamp>, | |
324 | ) -> bool { |
|
326 | ) -> bool { | |
325 | if !self.options.list_unknown && !self.options.list_ignored { |
|
327 | if !self.options.list_unknown && !self.options.list_ignored { | |
326 | // All states that we care about listing have corresponding |
|
328 | // All states that we care about listing have corresponding | |
327 | // dirstate entries. |
|
329 | // dirstate entries. | |
328 | // This happens for example with `hg status -mard`. |
|
330 | // This happens for example with `hg status -mard`. | |
329 | return true; |
|
331 | return true; | |
330 | } |
|
332 | } | |
331 | if !self.options.list_ignored |
|
333 | if !self.options.list_ignored | |
332 | && self.ignore_patterns_have_changed == Some(false) |
|
334 | && self.ignore_patterns_have_changed == Some(false) | |
333 | { |
|
335 | { | |
334 | if let Some(cached_mtime) = cached_directory_mtime { |
|
336 | if let Some(cached_mtime) = cached_directory_mtime { | |
335 | // The dirstate contains a cached mtime for this directory, set |
|
337 | // The dirstate contains a cached mtime for this directory, set | |
336 | // by a previous run of the `status` algorithm which found this |
|
338 | // by a previous run of the `status` algorithm which found this | |
337 | // directory eligible for `read_dir` caching. |
|
339 | // directory eligible for `read_dir` caching. | |
338 | if let Some(meta) = directory_metadata { |
|
340 | if let Some(meta) = directory_metadata { | |
339 | if cached_mtime |
|
341 | if cached_mtime | |
340 | .likely_equal_to_mtime_of(meta) |
|
342 | .likely_equal_to_mtime_of(meta) | |
341 | .unwrap_or(false) |
|
343 | .unwrap_or(false) | |
342 | { |
|
344 | { | |
343 | // The mtime of that directory has not changed |
|
345 | // The mtime of that directory has not changed | |
344 | // since then, which means that the results of |
|
346 | // since then, which means that the results of | |
345 | // `read_dir` should also be unchanged. |
|
347 | // `read_dir` should also be unchanged. | |
346 | return true; |
|
348 | return true; | |
347 | } |
|
349 | } | |
348 | } |
|
350 | } | |
349 | } |
|
351 | } | |
350 | } |
|
352 | } | |
351 | false |
|
353 | false | |
352 | } |
|
354 | } | |
353 |
|
355 | |||
354 | /// Returns whether all child entries of the filesystem directory have a |
|
356 | /// Returns whether all child entries of the filesystem directory have a | |
355 | /// corresponding dirstate node or are ignored. |
|
357 | /// corresponding dirstate node or are ignored. | |
356 | fn traverse_fs_directory_and_dirstate<'ancestor>( |
|
358 | fn traverse_fs_directory_and_dirstate<'ancestor>( | |
357 | &self, |
|
359 | &self, | |
358 | has_ignored_ancestor: &'ancestor HasIgnoredAncestor<'ancestor>, |
|
360 | has_ignored_ancestor: &'ancestor HasIgnoredAncestor<'ancestor>, | |
359 | dirstate_nodes: ChildNodesRef<'tree, 'on_disk>, |
|
361 | dirstate_nodes: ChildNodesRef<'tree, 'on_disk>, | |
360 | directory_hg_path: &BorrowedPath<'tree, 'on_disk>, |
|
362 | directory_hg_path: &BorrowedPath<'tree, 'on_disk>, | |
361 | directory_fs_path: &Path, |
|
363 | directory_fs_path: &Path, | |
362 | directory_metadata: Option<&std::fs::Metadata>, |
|
364 | directory_metadata: Option<&std::fs::Metadata>, | |
363 | cached_directory_mtime: Option<TruncatedTimestamp>, |
|
365 | cached_directory_mtime: Option<TruncatedTimestamp>, | |
364 | is_at_repo_root: bool, |
|
366 | is_at_repo_root: bool, | |
365 | ) -> Result<bool, DirstateV2ParseError> { |
|
367 | ) -> Result<bool, DirstateV2ParseError> { | |
366 | if self.can_skip_fs_readdir(directory_metadata, cached_directory_mtime) |
|
368 | if self.can_skip_fs_readdir(directory_metadata, cached_directory_mtime) | |
367 | { |
|
369 | { | |
368 | dirstate_nodes |
|
370 | dirstate_nodes | |
369 | .par_iter() |
|
371 | .par_iter() | |
370 | .map(|dirstate_node| { |
|
372 | .map(|dirstate_node| { | |
371 | let fs_path = directory_fs_path.join(get_path_from_bytes( |
|
373 | let fs_path = directory_fs_path.join(get_path_from_bytes( | |
372 | dirstate_node.base_name(self.dmap.on_disk)?.as_bytes(), |
|
374 | dirstate_node.base_name(self.dmap.on_disk)?.as_bytes(), | |
373 | )); |
|
375 | )); | |
374 | match std::fs::symlink_metadata(&fs_path) { |
|
376 | match std::fs::symlink_metadata(&fs_path) { | |
375 | Ok(fs_metadata) => self.traverse_fs_and_dirstate( |
|
377 | Ok(fs_metadata) => self.traverse_fs_and_dirstate( | |
376 | &fs_path, |
|
378 | &fs_path, | |
377 | &fs_metadata, |
|
379 | &fs_metadata, | |
378 | dirstate_node, |
|
380 | dirstate_node, | |
379 | has_ignored_ancestor, |
|
381 | has_ignored_ancestor, | |
380 | ), |
|
382 | ), | |
381 | Err(e) if e.kind() == std::io::ErrorKind::NotFound => { |
|
383 | Err(e) if e.kind() == std::io::ErrorKind::NotFound => { | |
382 | self.traverse_dirstate_only(dirstate_node) |
|
384 | self.traverse_dirstate_only(dirstate_node) | |
383 | } |
|
385 | } | |
384 | Err(error) => { |
|
386 | Err(error) => { | |
385 | let hg_path = |
|
387 | let hg_path = | |
386 | dirstate_node.full_path(self.dmap.on_disk)?; |
|
388 | dirstate_node.full_path(self.dmap.on_disk)?; | |
387 | Ok(self.io_error(error, hg_path)) |
|
389 | Ok(self.io_error(error, hg_path)) | |
388 | } |
|
390 | } | |
389 | } |
|
391 | } | |
390 | }) |
|
392 | }) | |
391 | .collect::<Result<_, _>>()?; |
|
393 | .collect::<Result<_, _>>()?; | |
392 |
|
394 | |||
393 | // We don’t know, so conservatively say this isn’t the case |
|
395 | // We don’t know, so conservatively say this isn’t the case | |
394 | let children_all_have_dirstate_node_or_are_ignored = false; |
|
396 | let children_all_have_dirstate_node_or_are_ignored = false; | |
395 |
|
397 | |||
396 | return Ok(children_all_have_dirstate_node_or_are_ignored); |
|
398 | return Ok(children_all_have_dirstate_node_or_are_ignored); | |
397 | } |
|
399 | } | |
398 |
|
400 | |||
399 | let mut fs_entries = if let Ok(entries) = self.read_dir( |
|
401 | let mut fs_entries = if let Ok(entries) = self.read_dir( | |
400 | directory_hg_path, |
|
402 | directory_hg_path, | |
401 | directory_fs_path, |
|
403 | directory_fs_path, | |
402 | is_at_repo_root, |
|
404 | is_at_repo_root, | |
403 | ) { |
|
405 | ) { | |
404 | entries |
|
406 | entries | |
405 | } else { |
|
407 | } else { | |
406 | // Treat an unreadable directory (typically because of insufficient |
|
408 | // Treat an unreadable directory (typically because of insufficient | |
407 | // permissions) like an empty directory. `self.read_dir` has |
|
409 | // permissions) like an empty directory. `self.read_dir` has | |
408 | // already called `self.io_error` so a warning will be emitted. |
|
410 | // already called `self.io_error` so a warning will be emitted. | |
409 | Vec::new() |
|
411 | Vec::new() | |
410 | }; |
|
412 | }; | |
411 |
|
413 | |||
412 | // `merge_join_by` requires both its input iterators to be sorted: |
|
414 | // `merge_join_by` requires both its input iterators to be sorted: | |
413 |
|
415 | |||
414 | let dirstate_nodes = dirstate_nodes.sorted(); |
|
416 | let dirstate_nodes = dirstate_nodes.sorted(); | |
415 | // `sort_unstable_by_key` doesn’t allow keys borrowing from the value: |
|
417 | // `sort_unstable_by_key` doesn’t allow keys borrowing from the value: | |
416 | // https://github.com/rust-lang/rust/issues/34162 |
|
418 | // https://github.com/rust-lang/rust/issues/34162 | |
417 | fs_entries.sort_unstable_by(|e1, e2| e1.base_name.cmp(&e2.base_name)); |
|
419 | fs_entries.sort_unstable_by(|e1, e2| e1.base_name.cmp(&e2.base_name)); | |
418 |
|
420 | |||
419 | // Propagate here any error that would happen inside the comparison |
|
421 | // Propagate here any error that would happen inside the comparison | |
420 | // callback below |
|
422 | // callback below | |
421 | for dirstate_node in &dirstate_nodes { |
|
423 | for dirstate_node in &dirstate_nodes { | |
422 | dirstate_node.base_name(self.dmap.on_disk)?; |
|
424 | dirstate_node.base_name(self.dmap.on_disk)?; | |
423 | } |
|
425 | } | |
424 | itertools::merge_join_by( |
|
426 | itertools::merge_join_by( | |
425 | dirstate_nodes, |
|
427 | dirstate_nodes, | |
426 | &fs_entries, |
|
428 | &fs_entries, | |
427 | |dirstate_node, fs_entry| { |
|
429 | |dirstate_node, fs_entry| { | |
428 | // This `unwrap` never panics because we already propagated |
|
430 | // This `unwrap` never panics because we already propagated | |
429 | // those errors above |
|
431 | // those errors above | |
430 | dirstate_node |
|
432 | dirstate_node | |
431 | .base_name(self.dmap.on_disk) |
|
433 | .base_name(self.dmap.on_disk) | |
432 | .unwrap() |
|
434 | .unwrap() | |
433 | .cmp(&fs_entry.base_name) |
|
435 | .cmp(&fs_entry.base_name) | |
434 | }, |
|
436 | }, | |
435 | ) |
|
437 | ) | |
436 | .par_bridge() |
|
438 | .par_bridge() | |
437 | .map(|pair| { |
|
439 | .map(|pair| { | |
438 | use itertools::EitherOrBoth::*; |
|
440 | use itertools::EitherOrBoth::*; | |
439 | let has_dirstate_node_or_is_ignored; |
|
441 | let has_dirstate_node_or_is_ignored; | |
440 | match pair { |
|
442 | match pair { | |
441 | Both(dirstate_node, fs_entry) => { |
|
443 | Both(dirstate_node, fs_entry) => { | |
442 | self.traverse_fs_and_dirstate( |
|
444 | self.traverse_fs_and_dirstate( | |
443 | &fs_entry.full_path, |
|
445 | &fs_entry.full_path, | |
444 | &fs_entry.metadata, |
|
446 | &fs_entry.metadata, | |
445 | dirstate_node, |
|
447 | dirstate_node, | |
446 | has_ignored_ancestor, |
|
448 | has_ignored_ancestor, | |
447 | )?; |
|
449 | )?; | |
448 | has_dirstate_node_or_is_ignored = true |
|
450 | has_dirstate_node_or_is_ignored = true | |
449 | } |
|
451 | } | |
450 | Left(dirstate_node) => { |
|
452 | Left(dirstate_node) => { | |
451 | self.traverse_dirstate_only(dirstate_node)?; |
|
453 | self.traverse_dirstate_only(dirstate_node)?; | |
452 | has_dirstate_node_or_is_ignored = true; |
|
454 | has_dirstate_node_or_is_ignored = true; | |
453 | } |
|
455 | } | |
454 | Right(fs_entry) => { |
|
456 | Right(fs_entry) => { | |
455 | has_dirstate_node_or_is_ignored = self.traverse_fs_only( |
|
457 | has_dirstate_node_or_is_ignored = self.traverse_fs_only( | |
456 | has_ignored_ancestor.force(&self.ignore_fn), |
|
458 | has_ignored_ancestor.force(&self.ignore_fn), | |
457 | directory_hg_path, |
|
459 | directory_hg_path, | |
458 | fs_entry, |
|
460 | fs_entry, | |
459 | ) |
|
461 | ) | |
460 | } |
|
462 | } | |
461 | } |
|
463 | } | |
462 | Ok(has_dirstate_node_or_is_ignored) |
|
464 | Ok(has_dirstate_node_or_is_ignored) | |
463 | }) |
|
465 | }) | |
464 | .try_reduce(|| true, |a, b| Ok(a && b)) |
|
466 | .try_reduce(|| true, |a, b| Ok(a && b)) | |
465 | } |
|
467 | } | |
466 |
|
468 | |||
467 | fn traverse_fs_and_dirstate<'ancestor>( |
|
469 | fn traverse_fs_and_dirstate<'ancestor>( | |
468 | &self, |
|
470 | &self, | |
469 | fs_path: &Path, |
|
471 | fs_path: &Path, | |
470 | fs_metadata: &std::fs::Metadata, |
|
472 | fs_metadata: &std::fs::Metadata, | |
471 | dirstate_node: NodeRef<'tree, 'on_disk>, |
|
473 | dirstate_node: NodeRef<'tree, 'on_disk>, | |
472 | has_ignored_ancestor: &'ancestor HasIgnoredAncestor<'ancestor>, |
|
474 | has_ignored_ancestor: &'ancestor HasIgnoredAncestor<'ancestor>, | |
473 | ) -> Result<(), DirstateV2ParseError> { |
|
475 | ) -> Result<(), DirstateV2ParseError> { | |
474 | self.check_for_outdated_directory_cache(&dirstate_node)?; |
|
476 | self.check_for_outdated_directory_cache(&dirstate_node)?; | |
475 | let hg_path = &dirstate_node.full_path_borrowed(self.dmap.on_disk)?; |
|
477 | let hg_path = &dirstate_node.full_path_borrowed(self.dmap.on_disk)?; | |
476 | let file_type = fs_metadata.file_type(); |
|
478 | let file_type = fs_metadata.file_type(); | |
477 | let file_or_symlink = file_type.is_file() || file_type.is_symlink(); |
|
479 | let file_or_symlink = file_type.is_file() || file_type.is_symlink(); | |
478 | if !file_or_symlink { |
|
480 | if !file_or_symlink { | |
479 | // If we previously had a file here, it was removed (with |
|
481 | // If we previously had a file here, it was removed (with | |
480 | // `hg rm` or similar) or deleted before it could be |
|
482 | // `hg rm` or similar) or deleted before it could be | |
481 | // replaced by a directory or something else. |
|
483 | // replaced by a directory or something else. | |
482 | self.mark_removed_or_deleted_if_file(&dirstate_node)?; |
|
484 | self.mark_removed_or_deleted_if_file(&dirstate_node)?; | |
483 | } |
|
485 | } | |
484 | if file_type.is_dir() { |
|
486 | if file_type.is_dir() { | |
485 | if self.options.collect_traversed_dirs { |
|
487 | if self.options.collect_traversed_dirs { | |
486 | self.outcome |
|
488 | self.outcome | |
487 | .lock() |
|
489 | .lock() | |
488 | .unwrap() |
|
490 | .unwrap() | |
489 | .traversed |
|
491 | .traversed | |
490 | .push(hg_path.detach_from_tree()) |
|
492 | .push(hg_path.detach_from_tree()) | |
491 | } |
|
493 | } | |
492 | let is_ignored = HasIgnoredAncestor::create( |
|
494 | let is_ignored = HasIgnoredAncestor::create( | |
493 | Some(&has_ignored_ancestor), |
|
495 | Some(&has_ignored_ancestor), | |
494 | hg_path, |
|
496 | hg_path, | |
495 | ); |
|
497 | ); | |
496 | let is_at_repo_root = false; |
|
498 | let is_at_repo_root = false; | |
497 | let children_all_have_dirstate_node_or_are_ignored = self |
|
499 | let children_all_have_dirstate_node_or_are_ignored = self | |
498 | .traverse_fs_directory_and_dirstate( |
|
500 | .traverse_fs_directory_and_dirstate( | |
499 | &is_ignored, |
|
501 | &is_ignored, | |
500 | dirstate_node.children(self.dmap.on_disk)?, |
|
502 | dirstate_node.children(self.dmap.on_disk)?, | |
501 | hg_path, |
|
503 | hg_path, | |
502 | fs_path, |
|
504 | fs_path, | |
503 | Some(fs_metadata), |
|
505 | Some(fs_metadata), | |
504 | dirstate_node.cached_directory_mtime()?, |
|
506 | dirstate_node.cached_directory_mtime()?, | |
505 | is_at_repo_root, |
|
507 | is_at_repo_root, | |
506 | )?; |
|
508 | )?; | |
507 | self.maybe_save_directory_mtime( |
|
509 | self.maybe_save_directory_mtime( | |
508 | children_all_have_dirstate_node_or_are_ignored, |
|
510 | children_all_have_dirstate_node_or_are_ignored, | |
509 | fs_metadata, |
|
511 | fs_metadata, | |
510 | dirstate_node, |
|
512 | dirstate_node, | |
511 | )? |
|
513 | )? | |
512 | } else { |
|
514 | } else { | |
513 | if file_or_symlink && self.matcher.matches(&hg_path) { |
|
515 | if file_or_symlink && self.matcher.matches(&hg_path) { | |
514 | if let Some(entry) = dirstate_node.entry()? { |
|
516 | if let Some(entry) = dirstate_node.entry()? { | |
515 | if !entry.any_tracked() { |
|
517 | if !entry.any_tracked() { | |
516 | // Forward-compat if we start tracking unknown/ignored |
|
518 | // Forward-compat if we start tracking unknown/ignored | |
517 | // files for caching reasons |
|
519 | // files for caching reasons | |
518 | self.mark_unknown_or_ignored( |
|
520 | self.mark_unknown_or_ignored( | |
519 | has_ignored_ancestor.force(&self.ignore_fn), |
|
521 | has_ignored_ancestor.force(&self.ignore_fn), | |
520 | &hg_path, |
|
522 | &hg_path, | |
521 | ); |
|
523 | ); | |
522 | } |
|
524 | } | |
523 | if entry.added() { |
|
525 | if entry.added() { | |
524 | self.push_outcome(Outcome::Added, &dirstate_node)?; |
|
526 | self.push_outcome(Outcome::Added, &dirstate_node)?; | |
525 | } else if entry.removed() { |
|
527 | } else if entry.removed() { | |
526 | self.push_outcome(Outcome::Removed, &dirstate_node)?; |
|
528 | self.push_outcome(Outcome::Removed, &dirstate_node)?; | |
527 | } else if entry.modified() { |
|
529 | } else if entry.modified() { | |
528 | self.push_outcome(Outcome::Modified, &dirstate_node)?; |
|
530 | self.push_outcome(Outcome::Modified, &dirstate_node)?; | |
529 | } else { |
|
531 | } else { | |
530 | self.handle_normal_file(&dirstate_node, fs_metadata)?; |
|
532 | self.handle_normal_file(&dirstate_node, fs_metadata)?; | |
531 | } |
|
533 | } | |
532 | } else { |
|
534 | } else { | |
533 | // `node.entry.is_none()` indicates a "directory" |
|
535 | // `node.entry.is_none()` indicates a "directory" | |
534 | // node, but the filesystem has a file |
|
536 | // node, but the filesystem has a file | |
535 | self.mark_unknown_or_ignored( |
|
537 | self.mark_unknown_or_ignored( | |
536 | has_ignored_ancestor.force(&self.ignore_fn), |
|
538 | has_ignored_ancestor.force(&self.ignore_fn), | |
537 | hg_path, |
|
539 | hg_path, | |
538 | ); |
|
540 | ); | |
539 | } |
|
541 | } | |
540 | } |
|
542 | } | |
541 |
|
543 | |||
542 | for child_node in dirstate_node.children(self.dmap.on_disk)?.iter() |
|
544 | for child_node in dirstate_node.children(self.dmap.on_disk)?.iter() | |
543 | { |
|
545 | { | |
544 | self.traverse_dirstate_only(child_node)? |
|
546 | self.traverse_dirstate_only(child_node)? | |
545 | } |
|
547 | } | |
546 | } |
|
548 | } | |
547 | Ok(()) |
|
549 | Ok(()) | |
548 | } |
|
550 | } | |
549 |
|
551 | |||
550 | fn maybe_save_directory_mtime( |
|
552 | fn maybe_save_directory_mtime( | |
551 | &self, |
|
553 | &self, | |
552 | children_all_have_dirstate_node_or_are_ignored: bool, |
|
554 | children_all_have_dirstate_node_or_are_ignored: bool, | |
553 | directory_metadata: &std::fs::Metadata, |
|
555 | directory_metadata: &std::fs::Metadata, | |
554 | dirstate_node: NodeRef<'tree, 'on_disk>, |
|
556 | dirstate_node: NodeRef<'tree, 'on_disk>, | |
555 | ) -> Result<(), DirstateV2ParseError> { |
|
557 | ) -> Result<(), DirstateV2ParseError> { | |
556 | if !children_all_have_dirstate_node_or_are_ignored { |
|
558 | if !children_all_have_dirstate_node_or_are_ignored { | |
557 | return Ok(()); |
|
559 | return Ok(()); | |
558 | } |
|
560 | } | |
559 | // All filesystem directory entries from `read_dir` have a |
|
561 | // All filesystem directory entries from `read_dir` have a | |
560 | // corresponding node in the dirstate, so we can reconstitute the |
|
562 | // corresponding node in the dirstate, so we can reconstitute the | |
561 | // names of those entries without calling `read_dir` again. |
|
563 | // names of those entries without calling `read_dir` again. | |
562 |
|
564 | |||
563 | // TODO: use let-else here and below when available: |
|
565 | // TODO: use let-else here and below when available: | |
564 | // https://github.com/rust-lang/rust/issues/87335 |
|
566 | // https://github.com/rust-lang/rust/issues/87335 | |
565 | let status_start = if let Some(status_start) = |
|
567 | let status_start = if let Some(status_start) = | |
566 | &self.filesystem_time_at_status_start |
|
568 | &self.filesystem_time_at_status_start | |
567 | { |
|
569 | { | |
568 | status_start |
|
570 | status_start | |
569 | } else { |
|
571 | } else { | |
570 | return Ok(()); |
|
572 | return Ok(()); | |
571 | }; |
|
573 | }; | |
572 |
|
574 | |||
573 | // Although the Rust standard library’s `SystemTime` type |
|
575 | // Although the Rust standard library’s `SystemTime` type | |
574 | // has nanosecond precision, the times reported for a |
|
576 | // has nanosecond precision, the times reported for a | |
575 | // directory’s (or file’s) modified time may have lower |
|
577 | // directory’s (or file’s) modified time may have lower | |
576 | // resolution based on the filesystem (for example ext3 |
|
578 | // resolution based on the filesystem (for example ext3 | |
577 | // only stores integer seconds), kernel (see |
|
579 | // only stores integer seconds), kernel (see | |
578 | // https://stackoverflow.com/a/14393315/1162888), etc. |
|
580 | // https://stackoverflow.com/a/14393315/1162888), etc. | |
579 | let directory_mtime = if let Ok(option) = |
|
581 | let directory_mtime = if let Ok(option) = | |
580 | TruncatedTimestamp::for_reliable_mtime_of( |
|
582 | TruncatedTimestamp::for_reliable_mtime_of( | |
581 | directory_metadata, |
|
583 | directory_metadata, | |
582 | status_start, |
|
584 | status_start, | |
583 | ) { |
|
585 | ) { | |
584 | if let Some(directory_mtime) = option { |
|
586 | if let Some(directory_mtime) = option { | |
585 | directory_mtime |
|
587 | directory_mtime | |
586 | } else { |
|
588 | } else { | |
587 | // The directory was modified too recently, |
|
589 | // The directory was modified too recently, | |
588 | // don’t cache its `read_dir` results. |
|
590 | // don’t cache its `read_dir` results. | |
589 | // |
|
591 | // | |
590 | // 1. A change to this directory (direct child was |
|
592 | // 1. A change to this directory (direct child was | |
591 | // added or removed) cause its mtime to be set |
|
593 | // added or removed) cause its mtime to be set | |
592 | // (possibly truncated) to `directory_mtime` |
|
594 | // (possibly truncated) to `directory_mtime` | |
593 | // 2. This `status` algorithm calls `read_dir` |
|
595 | // 2. This `status` algorithm calls `read_dir` | |
594 | // 3. An other change is made to the same directory is |
|
596 | // 3. An other change is made to the same directory is | |
595 | // made so that calling `read_dir` agin would give |
|
597 | // made so that calling `read_dir` agin would give | |
596 | // different results, but soon enough after 1. that |
|
598 | // different results, but soon enough after 1. that | |
597 | // the mtime stays the same |
|
599 | // the mtime stays the same | |
598 | // |
|
600 | // | |
599 | // On a system where the time resolution poor, this |
|
601 | // On a system where the time resolution poor, this | |
600 | // scenario is not unlikely if all three steps are caused |
|
602 | // scenario is not unlikely if all three steps are caused | |
601 | // by the same script. |
|
603 | // by the same script. | |
602 | return Ok(()); |
|
604 | return Ok(()); | |
603 | } |
|
605 | } | |
604 | } else { |
|
606 | } else { | |
605 | // OS/libc does not support mtime? |
|
607 | // OS/libc does not support mtime? | |
606 | return Ok(()); |
|
608 | return Ok(()); | |
607 | }; |
|
609 | }; | |
608 | // We’ve observed (through `status_start`) that time has |
|
610 | // We’ve observed (through `status_start`) that time has | |
609 | // “progressed” since `directory_mtime`, so any further |
|
611 | // “progressed” since `directory_mtime`, so any further | |
610 | // change to this directory is extremely likely to cause a |
|
612 | // change to this directory is extremely likely to cause a | |
611 | // different mtime. |
|
613 | // different mtime. | |
612 | // |
|
614 | // | |
613 | // Having the same mtime again is not entirely impossible |
|
615 | // Having the same mtime again is not entirely impossible | |
614 | // since the system clock is not monotonous. It could jump |
|
616 | // since the system clock is not monotonous. It could jump | |
615 | // backward to some point before `directory_mtime`, then a |
|
617 | // backward to some point before `directory_mtime`, then a | |
616 | // directory change could potentially happen during exactly |
|
618 | // directory change could potentially happen during exactly | |
617 | // the wrong tick. |
|
619 | // the wrong tick. | |
618 | // |
|
620 | // | |
619 | // We deem this scenario (unlike the previous one) to be |
|
621 | // We deem this scenario (unlike the previous one) to be | |
620 | // unlikely enough in practice. |
|
622 | // unlikely enough in practice. | |
621 |
|
623 | |||
622 | let is_up_to_date = |
|
624 | let is_up_to_date = | |
623 | if let Some(cached) = dirstate_node.cached_directory_mtime()? { |
|
625 | if let Some(cached) = dirstate_node.cached_directory_mtime()? { | |
624 | cached.likely_equal(directory_mtime) |
|
626 | cached.likely_equal(directory_mtime) | |
625 | } else { |
|
627 | } else { | |
626 | false |
|
628 | false | |
627 | }; |
|
629 | }; | |
628 | if !is_up_to_date { |
|
630 | if !is_up_to_date { | |
629 | let hg_path = dirstate_node |
|
631 | let hg_path = dirstate_node | |
630 | .full_path_borrowed(self.dmap.on_disk)? |
|
632 | .full_path_borrowed(self.dmap.on_disk)? | |
631 | .detach_from_tree(); |
|
633 | .detach_from_tree(); | |
632 | self.new_cachable_directories |
|
634 | self.new_cacheable_directories | |
633 | .lock() |
|
635 | .lock() | |
634 | .unwrap() |
|
636 | .unwrap() | |
635 | .push((hg_path, directory_mtime)) |
|
637 | .push((hg_path, directory_mtime)) | |
636 | } |
|
638 | } | |
637 | Ok(()) |
|
639 | Ok(()) | |
638 | } |
|
640 | } | |
639 |
|
641 | |||
640 | /// A file that is clean in the dirstate was found in the filesystem |
|
642 | /// A file that is clean in the dirstate was found in the filesystem | |
641 | fn handle_normal_file( |
|
643 | fn handle_normal_file( | |
642 | &self, |
|
644 | &self, | |
643 | dirstate_node: &NodeRef<'tree, 'on_disk>, |
|
645 | dirstate_node: &NodeRef<'tree, 'on_disk>, | |
644 | fs_metadata: &std::fs::Metadata, |
|
646 | fs_metadata: &std::fs::Metadata, | |
645 | ) -> Result<(), DirstateV2ParseError> { |
|
647 | ) -> Result<(), DirstateV2ParseError> { | |
646 | // Keep the low 31 bits |
|
648 | // Keep the low 31 bits | |
647 | fn truncate_u64(value: u64) -> i32 { |
|
649 | fn truncate_u64(value: u64) -> i32 { | |
648 | (value & 0x7FFF_FFFF) as i32 |
|
650 | (value & 0x7FFF_FFFF) as i32 | |
649 | } |
|
651 | } | |
650 |
|
652 | |||
651 | let entry = dirstate_node |
|
653 | let entry = dirstate_node | |
652 | .entry()? |
|
654 | .entry()? | |
653 | .expect("handle_normal_file called with entry-less node"); |
|
655 | .expect("handle_normal_file called with entry-less node"); | |
654 | let mode_changed = |
|
656 | let mode_changed = | |
655 | || self.options.check_exec && entry.mode_changed(fs_metadata); |
|
657 | || self.options.check_exec && entry.mode_changed(fs_metadata); | |
656 | let size = entry.size(); |
|
658 | let size = entry.size(); | |
657 | let size_changed = size != truncate_u64(fs_metadata.len()); |
|
659 | let size_changed = size != truncate_u64(fs_metadata.len()); | |
658 | if size >= 0 && size_changed && fs_metadata.file_type().is_symlink() { |
|
660 | if size >= 0 && size_changed && fs_metadata.file_type().is_symlink() { | |
659 | // issue6456: Size returned may be longer due to encryption |
|
661 | // issue6456: Size returned may be longer due to encryption | |
660 | // on EXT-4 fscrypt. TODO maybe only do it on EXT4? |
|
662 | // on EXT-4 fscrypt. TODO maybe only do it on EXT4? | |
661 | self.push_outcome(Outcome::Unsure, dirstate_node)? |
|
663 | self.push_outcome(Outcome::Unsure, dirstate_node)? | |
662 | } else if dirstate_node.has_copy_source() |
|
664 | } else if dirstate_node.has_copy_source() | |
663 | || entry.is_from_other_parent() |
|
665 | || entry.is_from_other_parent() | |
664 | || (size >= 0 && (size_changed || mode_changed())) |
|
666 | || (size >= 0 && (size_changed || mode_changed())) | |
665 | { |
|
667 | { | |
666 | self.push_outcome(Outcome::Modified, dirstate_node)? |
|
668 | self.push_outcome(Outcome::Modified, dirstate_node)? | |
667 | } else { |
|
669 | } else { | |
668 | let mtime_looks_clean; |
|
670 | let mtime_looks_clean; | |
669 | if let Some(dirstate_mtime) = entry.truncated_mtime() { |
|
671 | if let Some(dirstate_mtime) = entry.truncated_mtime() { | |
670 | let fs_mtime = TruncatedTimestamp::for_mtime_of(fs_metadata) |
|
672 | let fs_mtime = TruncatedTimestamp::for_mtime_of(fs_metadata) | |
671 | .expect("OS/libc does not support mtime?"); |
|
673 | .expect("OS/libc does not support mtime?"); | |
672 | // There might be a change in the future if for example the |
|
674 | // There might be a change in the future if for example the | |
673 | // internal clock become off while process run, but this is a |
|
675 | // internal clock become off while process run, but this is a | |
674 | // case where the issues the user would face |
|
676 | // case where the issues the user would face | |
675 | // would be a lot worse and there is nothing we |
|
677 | // would be a lot worse and there is nothing we | |
676 | // can really do. |
|
678 | // can really do. | |
677 | mtime_looks_clean = fs_mtime.likely_equal(dirstate_mtime) |
|
679 | mtime_looks_clean = fs_mtime.likely_equal(dirstate_mtime) | |
678 | } else { |
|
680 | } else { | |
679 | // No mtime in the dirstate entry |
|
681 | // No mtime in the dirstate entry | |
680 | mtime_looks_clean = false |
|
682 | mtime_looks_clean = false | |
681 | }; |
|
683 | }; | |
682 | if !mtime_looks_clean { |
|
684 | if !mtime_looks_clean { | |
683 | self.push_outcome(Outcome::Unsure, dirstate_node)? |
|
685 | self.push_outcome(Outcome::Unsure, dirstate_node)? | |
684 | } else if self.options.list_clean { |
|
686 | } else if self.options.list_clean { | |
685 | self.push_outcome(Outcome::Clean, dirstate_node)? |
|
687 | self.push_outcome(Outcome::Clean, dirstate_node)? | |
686 | } |
|
688 | } | |
687 | } |
|
689 | } | |
688 | Ok(()) |
|
690 | Ok(()) | |
689 | } |
|
691 | } | |
690 |
|
692 | |||
691 | /// A node in the dirstate tree has no corresponding filesystem entry |
|
693 | /// A node in the dirstate tree has no corresponding filesystem entry | |
692 | fn traverse_dirstate_only( |
|
694 | fn traverse_dirstate_only( | |
693 | &self, |
|
695 | &self, | |
694 | dirstate_node: NodeRef<'tree, 'on_disk>, |
|
696 | dirstate_node: NodeRef<'tree, 'on_disk>, | |
695 | ) -> Result<(), DirstateV2ParseError> { |
|
697 | ) -> Result<(), DirstateV2ParseError> { | |
696 | self.check_for_outdated_directory_cache(&dirstate_node)?; |
|
698 | self.check_for_outdated_directory_cache(&dirstate_node)?; | |
697 | self.mark_removed_or_deleted_if_file(&dirstate_node)?; |
|
699 | self.mark_removed_or_deleted_if_file(&dirstate_node)?; | |
698 | dirstate_node |
|
700 | dirstate_node | |
699 | .children(self.dmap.on_disk)? |
|
701 | .children(self.dmap.on_disk)? | |
700 | .par_iter() |
|
702 | .par_iter() | |
701 | .map(|child_node| self.traverse_dirstate_only(child_node)) |
|
703 | .map(|child_node| self.traverse_dirstate_only(child_node)) | |
702 | .collect() |
|
704 | .collect() | |
703 | } |
|
705 | } | |
704 |
|
706 | |||
705 | /// A node in the dirstate tree has no corresponding *file* on the |
|
707 | /// A node in the dirstate tree has no corresponding *file* on the | |
706 | /// filesystem |
|
708 | /// filesystem | |
707 | /// |
|
709 | /// | |
708 | /// Does nothing on a "directory" node |
|
710 | /// Does nothing on a "directory" node | |
709 | fn mark_removed_or_deleted_if_file( |
|
711 | fn mark_removed_or_deleted_if_file( | |
710 | &self, |
|
712 | &self, | |
711 | dirstate_node: &NodeRef<'tree, 'on_disk>, |
|
713 | dirstate_node: &NodeRef<'tree, 'on_disk>, | |
712 | ) -> Result<(), DirstateV2ParseError> { |
|
714 | ) -> Result<(), DirstateV2ParseError> { | |
713 | if let Some(entry) = dirstate_node.entry()? { |
|
715 | if let Some(entry) = dirstate_node.entry()? { | |
714 | if !entry.any_tracked() { |
|
716 | if !entry.any_tracked() { | |
715 | // Future-compat for when we start storing ignored and unknown |
|
717 | // Future-compat for when we start storing ignored and unknown | |
716 | // files for caching reasons |
|
718 | // files for caching reasons | |
717 | return Ok(()); |
|
719 | return Ok(()); | |
718 | } |
|
720 | } | |
719 | let path = dirstate_node.full_path(self.dmap.on_disk)?; |
|
721 | let path = dirstate_node.full_path(self.dmap.on_disk)?; | |
720 | if self.matcher.matches(path) { |
|
722 | if self.matcher.matches(path) { | |
721 | if entry.removed() { |
|
723 | if entry.removed() { | |
722 | self.push_outcome(Outcome::Removed, dirstate_node)? |
|
724 | self.push_outcome(Outcome::Removed, dirstate_node)? | |
723 | } else { |
|
725 | } else { | |
724 | self.push_outcome(Outcome::Deleted, &dirstate_node)? |
|
726 | self.push_outcome(Outcome::Deleted, &dirstate_node)? | |
725 | } |
|
727 | } | |
726 | } |
|
728 | } | |
727 | } |
|
729 | } | |
728 | Ok(()) |
|
730 | Ok(()) | |
729 | } |
|
731 | } | |
730 |
|
732 | |||
731 | /// Something in the filesystem has no corresponding dirstate node |
|
733 | /// Something in the filesystem has no corresponding dirstate node | |
732 | /// |
|
734 | /// | |
733 | /// Returns whether that path is ignored |
|
735 | /// Returns whether that path is ignored | |
734 | fn traverse_fs_only( |
|
736 | fn traverse_fs_only( | |
735 | &self, |
|
737 | &self, | |
736 | has_ignored_ancestor: bool, |
|
738 | has_ignored_ancestor: bool, | |
737 | directory_hg_path: &HgPath, |
|
739 | directory_hg_path: &HgPath, | |
738 | fs_entry: &DirEntry, |
|
740 | fs_entry: &DirEntry, | |
739 | ) -> bool { |
|
741 | ) -> bool { | |
740 | let hg_path = directory_hg_path.join(&fs_entry.base_name); |
|
742 | let hg_path = directory_hg_path.join(&fs_entry.base_name); | |
741 | let file_type = fs_entry.metadata.file_type(); |
|
743 | let file_type = fs_entry.metadata.file_type(); | |
742 | let file_or_symlink = file_type.is_file() || file_type.is_symlink(); |
|
744 | let file_or_symlink = file_type.is_file() || file_type.is_symlink(); | |
743 | if file_type.is_dir() { |
|
745 | if file_type.is_dir() { | |
744 | let is_ignored = |
|
746 | let is_ignored = | |
745 | has_ignored_ancestor || (self.ignore_fn)(&hg_path); |
|
747 | has_ignored_ancestor || (self.ignore_fn)(&hg_path); | |
746 | let traverse_children = if is_ignored { |
|
748 | let traverse_children = if is_ignored { | |
747 | // Descendants of an ignored directory are all ignored |
|
749 | // Descendants of an ignored directory are all ignored | |
748 | self.options.list_ignored |
|
750 | self.options.list_ignored | |
749 | } else { |
|
751 | } else { | |
750 | // Descendants of an unknown directory may be either unknown or |
|
752 | // Descendants of an unknown directory may be either unknown or | |
751 | // ignored |
|
753 | // ignored | |
752 | self.options.list_unknown || self.options.list_ignored |
|
754 | self.options.list_unknown || self.options.list_ignored | |
753 | }; |
|
755 | }; | |
754 | if traverse_children { |
|
756 | if traverse_children { | |
755 | let is_at_repo_root = false; |
|
757 | let is_at_repo_root = false; | |
756 | if let Ok(children_fs_entries) = self.read_dir( |
|
758 | if let Ok(children_fs_entries) = self.read_dir( | |
757 | &hg_path, |
|
759 | &hg_path, | |
758 | &fs_entry.full_path, |
|
760 | &fs_entry.full_path, | |
759 | is_at_repo_root, |
|
761 | is_at_repo_root, | |
760 | ) { |
|
762 | ) { | |
761 | children_fs_entries.par_iter().for_each(|child_fs_entry| { |
|
763 | children_fs_entries.par_iter().for_each(|child_fs_entry| { | |
762 | self.traverse_fs_only( |
|
764 | self.traverse_fs_only( | |
763 | is_ignored, |
|
765 | is_ignored, | |
764 | &hg_path, |
|
766 | &hg_path, | |
765 | child_fs_entry, |
|
767 | child_fs_entry, | |
766 | ); |
|
768 | ); | |
767 | }) |
|
769 | }) | |
768 | } |
|
770 | } | |
769 | if self.options.collect_traversed_dirs { |
|
771 | if self.options.collect_traversed_dirs { | |
770 | self.outcome.lock().unwrap().traversed.push(hg_path.into()) |
|
772 | self.outcome.lock().unwrap().traversed.push(hg_path.into()) | |
771 | } |
|
773 | } | |
772 | } |
|
774 | } | |
773 | is_ignored |
|
775 | is_ignored | |
774 | } else { |
|
776 | } else { | |
775 | if file_or_symlink { |
|
777 | if file_or_symlink { | |
776 | if self.matcher.matches(&hg_path) { |
|
778 | if self.matcher.matches(&hg_path) { | |
777 | self.mark_unknown_or_ignored( |
|
779 | self.mark_unknown_or_ignored( | |
778 | has_ignored_ancestor, |
|
780 | has_ignored_ancestor, | |
779 | &BorrowedPath::InMemory(&hg_path), |
|
781 | &BorrowedPath::InMemory(&hg_path), | |
780 | ) |
|
782 | ) | |
781 | } else { |
|
783 | } else { | |
782 | // We haven’t computed whether this path is ignored. It |
|
784 | // We haven’t computed whether this path is ignored. It | |
783 | // might not be, and a future run of status might have a |
|
785 | // might not be, and a future run of status might have a | |
784 | // different matcher that matches it. So treat it as not |
|
786 | // different matcher that matches it. So treat it as not | |
785 | // ignored. That is, inhibit readdir caching of the parent |
|
787 | // ignored. That is, inhibit readdir caching of the parent | |
786 | // directory. |
|
788 | // directory. | |
787 | false |
|
789 | false | |
788 | } |
|
790 | } | |
789 | } else { |
|
791 | } else { | |
790 | // This is neither a directory, a plain file, or a symlink. |
|
792 | // This is neither a directory, a plain file, or a symlink. | |
791 | // Treat it like an ignored file. |
|
793 | // Treat it like an ignored file. | |
792 | true |
|
794 | true | |
793 | } |
|
795 | } | |
794 | } |
|
796 | } | |
795 | } |
|
797 | } | |
796 |
|
798 | |||
797 | /// Returns whether that path is ignored |
|
799 | /// Returns whether that path is ignored | |
798 | fn mark_unknown_or_ignored( |
|
800 | fn mark_unknown_or_ignored( | |
799 | &self, |
|
801 | &self, | |
800 | has_ignored_ancestor: bool, |
|
802 | has_ignored_ancestor: bool, | |
801 | hg_path: &BorrowedPath<'_, 'on_disk>, |
|
803 | hg_path: &BorrowedPath<'_, 'on_disk>, | |
802 | ) -> bool { |
|
804 | ) -> bool { | |
803 | let is_ignored = has_ignored_ancestor || (self.ignore_fn)(&hg_path); |
|
805 | let is_ignored = has_ignored_ancestor || (self.ignore_fn)(&hg_path); | |
804 | if is_ignored { |
|
806 | if is_ignored { | |
805 | if self.options.list_ignored { |
|
807 | if self.options.list_ignored { | |
806 | self.push_outcome_without_copy_source( |
|
808 | self.push_outcome_without_copy_source( | |
807 | Outcome::Ignored, |
|
809 | Outcome::Ignored, | |
808 | hg_path, |
|
810 | hg_path, | |
809 | ) |
|
811 | ) | |
810 | } |
|
812 | } | |
811 | } else { |
|
813 | } else { | |
812 | if self.options.list_unknown { |
|
814 | if self.options.list_unknown { | |
813 | self.push_outcome_without_copy_source( |
|
815 | self.push_outcome_without_copy_source( | |
814 | Outcome::Unknown, |
|
816 | Outcome::Unknown, | |
815 | hg_path, |
|
817 | hg_path, | |
816 | ) |
|
818 | ) | |
817 | } |
|
819 | } | |
818 | } |
|
820 | } | |
819 | is_ignored |
|
821 | is_ignored | |
820 | } |
|
822 | } | |
821 | } |
|
823 | } | |
822 |
|
824 | |||
823 | struct DirEntry { |
|
825 | struct DirEntry { | |
824 | base_name: HgPathBuf, |
|
826 | base_name: HgPathBuf, | |
825 | full_path: PathBuf, |
|
827 | full_path: PathBuf, | |
826 | metadata: std::fs::Metadata, |
|
828 | metadata: std::fs::Metadata, | |
827 | } |
|
829 | } | |
828 |
|
830 | |||
829 | impl DirEntry { |
|
831 | impl DirEntry { | |
830 | /// Returns **unsorted** entries in the given directory, with name and |
|
832 | /// Returns **unsorted** entries in the given directory, with name and | |
831 | /// metadata. |
|
833 | /// metadata. | |
832 | /// |
|
834 | /// | |
833 | /// If a `.hg` sub-directory is encountered: |
|
835 | /// If a `.hg` sub-directory is encountered: | |
834 | /// |
|
836 | /// | |
835 | /// * At the repository root, ignore that sub-directory |
|
837 | /// * At the repository root, ignore that sub-directory | |
836 | /// * Elsewhere, we’re listing the content of a sub-repo. Return an empty |
|
838 | /// * Elsewhere, we’re listing the content of a sub-repo. Return an empty | |
837 | /// list instead. |
|
839 | /// list instead. | |
838 | fn read_dir(path: &Path, is_at_repo_root: bool) -> io::Result<Vec<Self>> { |
|
840 | fn read_dir(path: &Path, is_at_repo_root: bool) -> io::Result<Vec<Self>> { | |
839 | // `read_dir` returns a "not found" error for the empty path |
|
841 | // `read_dir` returns a "not found" error for the empty path | |
840 | let at_cwd = path == Path::new(""); |
|
842 | let at_cwd = path == Path::new(""); | |
841 | let read_dir_path = if at_cwd { Path::new(".") } else { path }; |
|
843 | let read_dir_path = if at_cwd { Path::new(".") } else { path }; | |
842 | let mut results = Vec::new(); |
|
844 | let mut results = Vec::new(); | |
843 | for entry in read_dir_path.read_dir()? { |
|
845 | for entry in read_dir_path.read_dir()? { | |
844 | let entry = entry?; |
|
846 | let entry = entry?; | |
845 | let metadata = match entry.metadata() { |
|
847 | let metadata = match entry.metadata() { | |
846 | Ok(v) => v, |
|
848 | Ok(v) => v, | |
847 | Err(e) => { |
|
849 | Err(e) => { | |
848 | // race with file deletion? |
|
850 | // race with file deletion? | |
849 | if e.kind() == std::io::ErrorKind::NotFound { |
|
851 | if e.kind() == std::io::ErrorKind::NotFound { | |
850 | continue; |
|
852 | continue; | |
851 | } else { |
|
853 | } else { | |
852 | return Err(e); |
|
854 | return Err(e); | |
853 | } |
|
855 | } | |
854 | } |
|
856 | } | |
855 | }; |
|
857 | }; | |
856 | let file_name = entry.file_name(); |
|
858 | let file_name = entry.file_name(); | |
857 | // FIXME don't do this when cached |
|
859 | // FIXME don't do this when cached | |
858 | if file_name == ".hg" { |
|
860 | if file_name == ".hg" { | |
859 | if is_at_repo_root { |
|
861 | if is_at_repo_root { | |
860 | // Skip the repo’s own .hg (might be a symlink) |
|
862 | // Skip the repo’s own .hg (might be a symlink) | |
861 | continue; |
|
863 | continue; | |
862 | } else if metadata.is_dir() { |
|
864 | } else if metadata.is_dir() { | |
863 | // A .hg sub-directory at another location means a subrepo, |
|
865 | // A .hg sub-directory at another location means a subrepo, | |
864 | // skip it entirely. |
|
866 | // skip it entirely. | |
865 | return Ok(Vec::new()); |
|
867 | return Ok(Vec::new()); | |
866 | } |
|
868 | } | |
867 | } |
|
869 | } | |
868 | let full_path = if at_cwd { |
|
870 | let full_path = if at_cwd { | |
869 | file_name.clone().into() |
|
871 | file_name.clone().into() | |
870 | } else { |
|
872 | } else { | |
871 | entry.path() |
|
873 | entry.path() | |
872 | }; |
|
874 | }; | |
873 | let base_name = get_bytes_from_os_string(file_name).into(); |
|
875 | let base_name = get_bytes_from_os_string(file_name).into(); | |
874 | results.push(DirEntry { |
|
876 | results.push(DirEntry { | |
875 | base_name, |
|
877 | base_name, | |
876 | full_path, |
|
878 | full_path, | |
877 | metadata, |
|
879 | metadata, | |
878 | }) |
|
880 | }) | |
879 | } |
|
881 | } | |
880 | Ok(results) |
|
882 | Ok(results) | |
881 | } |
|
883 | } | |
882 | } |
|
884 | } | |
883 |
|
885 | |||
884 | /// Return the `mtime` of a temporary file newly-created in the `.hg` directory |
|
886 | /// Return the `mtime` of a temporary file newly-created in the `.hg` directory | |
885 | /// of the give repository. |
|
887 | /// of the give repository. | |
886 | /// |
|
888 | /// | |
887 | /// This is similar to `SystemTime::now()`, with the result truncated to the |
|
889 | /// This is similar to `SystemTime::now()`, with the result truncated to the | |
888 | /// same time resolution as other files’ modification times. Using `.hg` |
|
890 | /// same time resolution as other files’ modification times. Using `.hg` | |
889 | /// instead of the system’s default temporary directory (such as `/tmp`) makes |
|
891 | /// instead of the system’s default temporary directory (such as `/tmp`) makes | |
890 | /// it more likely the temporary file is in the same disk partition as contents |
|
892 | /// it more likely the temporary file is in the same disk partition as contents | |
891 | /// of the working directory, which can matter since different filesystems may |
|
893 | /// of the working directory, which can matter since different filesystems may | |
892 | /// store timestamps with different resolutions. |
|
894 | /// store timestamps with different resolutions. | |
893 | /// |
|
895 | /// | |
894 | /// This may fail, typically if we lack write permissions. In that case we |
|
896 | /// This may fail, typically if we lack write permissions. In that case we | |
895 | /// should continue the `status()` algoritm anyway and consider the current |
|
897 | /// should continue the `status()` algoritm anyway and consider the current | |
896 | /// date/time to be unknown. |
|
898 | /// date/time to be unknown. | |
897 | fn filesystem_now(repo_root: &Path) -> Result<SystemTime, io::Error> { |
|
899 | fn filesystem_now(repo_root: &Path) -> Result<SystemTime, io::Error> { | |
898 | tempfile::tempfile_in(repo_root.join(".hg"))? |
|
900 | tempfile::tempfile_in(repo_root.join(".hg"))? | |
899 | .metadata()? |
|
901 | .metadata()? | |
900 | .modified() |
|
902 | .modified() | |
901 | } |
|
903 | } |
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