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annotate rust/hg-core/src/dirstate_tree/dispatch.rs @ 47385:f6bb181c75f8

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rust: Parse "subinclude"d files along the way, not later When parsing a `.hgignore` file and encountering an `include:` line, the included file is parsed recursively right then in a depth-first fashion. With `subinclude:` however included files were parsed (recursively) much later. This changes it to be expanded during parsing, like `.hgignore`. The motivation for this is an upcoming changeset that needs to detect changes in which files are ignored or not. The plan is to hash all ignore files while they are being read, and store that hash in the dirstate (in v2 format). In order to allow a potential alternative implementations to read that format, the algorithm to compute that hash must be documented. Having a well-defined depth-first ordering for the tree of (sub-)included files makes that easier. Differential Revision: https://phab.mercurial-scm.org/D10834
author Simon Sapin <simon.sapin@octobus.net>
date Wed, 02 Jun 2021 18:03:43 +0200
parents 3b9914b28133
children eb416759af7e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 use std::path::PathBuf;
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2
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3 use crate::dirstate::parsers::Timestamp;
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4 use crate::dirstate_tree::on_disk::DirstateV2ParseError;
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5 use crate::matchers::Matcher;
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6 use crate::utils::hg_path::{HgPath, HgPathBuf};
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7 use crate::CopyMapIter;
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8 use crate::DirstateEntry;
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9 use crate::DirstateError;
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10 use crate::DirstateMap;
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11 use crate::DirstateParents;
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12 use crate::DirstateStatus;
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13 use crate::EntryState;
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14 use crate::PatternFileWarning;
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15 use crate::StateMapIter;
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16 use crate::StatusError;
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17 use crate::StatusOptions;
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18
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19 pub trait DirstateMapMethods {
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20 fn clear(&mut self);
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22 fn add_file(
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23 &mut self,
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24 filename: &HgPath,
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25 old_state: EntryState,
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26 entry: DirstateEntry,
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27 ) -> Result<(), DirstateError>;
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29 fn remove_file(
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30 &mut self,
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31 filename: &HgPath,
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32 old_state: EntryState,
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33 size: i32,
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34 ) -> Result<(), DirstateError>;
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36 fn drop_file(
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37 &mut self,
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38 filename: &HgPath,
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39 old_state: EntryState,
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40 ) -> Result<bool, DirstateError>;
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42 fn clear_ambiguous_times(
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43 &mut self,
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44 filenames: Vec<HgPathBuf>,
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45 now: i32,
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46 ) -> Result<(), DirstateV2ParseError>;
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47
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48 fn non_normal_entries_contains(
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49 &mut self,
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50 key: &HgPath,
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51 ) -> Result<bool, DirstateV2ParseError>;
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52
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53 fn non_normal_entries_remove(&mut self, key: &HgPath);
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55 fn non_normal_or_other_parent_paths(
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56 &mut self,
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57 ) -> Box<dyn Iterator<Item = Result<&HgPath, DirstateV2ParseError>> + '_>;
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59 fn set_non_normal_other_parent_entries(&mut self, force: bool);
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61 fn iter_non_normal_paths(
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62 &mut self,
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63 ) -> Box<
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64 dyn Iterator<Item = Result<&HgPath, DirstateV2ParseError>> + Send + '_,
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65 >;
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66
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67 fn iter_non_normal_paths_panic(
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68 &self,
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69 ) -> Box<
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70 dyn Iterator<Item = Result<&HgPath, DirstateV2ParseError>> + Send + '_,
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71 >;
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72
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73 fn iter_other_parent_paths(
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74 &mut self,
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75 ) -> Box<
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76 dyn Iterator<Item = Result<&HgPath, DirstateV2ParseError>> + Send + '_,
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77 >;
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78
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79 fn has_tracked_dir(
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80 &mut self,
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81 directory: &HgPath,
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82 ) -> Result<bool, DirstateError>;
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83
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84 fn has_dir(&mut self, directory: &HgPath) -> Result<bool, DirstateError>;
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86 fn pack_v1(
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87 &mut self,
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88 parents: DirstateParents,
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89 now: Timestamp,
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90 ) -> Result<Vec<u8>, DirstateError>;
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91
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92 fn pack_v2(
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93 &mut self,
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94 parents: DirstateParents,
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95 now: Timestamp,
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96 ) -> Result<Vec<u8>, DirstateError>;
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97
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98 fn set_all_dirs(&mut self) -> Result<(), DirstateError>;
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99
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100 fn set_dirs(&mut self) -> Result<(), DirstateError>;
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101
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102 fn status<'a>(
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103 &'a mut self,
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104 matcher: &'a (dyn Matcher + Sync),
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105 root_dir: PathBuf,
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106 ignore_files: Vec<PathBuf>,
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107 options: StatusOptions,
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108 ) -> Result<(DirstateStatus<'a>, Vec<PatternFileWarning>), StatusError>;
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110 fn copy_map_len(&self) -> usize;
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112 fn copy_map_iter(&self) -> CopyMapIter<'_>;
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113
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114 fn copy_map_contains_key(
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115 &self,
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116 key: &HgPath,
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117 ) -> Result<bool, DirstateV2ParseError>;
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118
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119 fn copy_map_get(
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120 &self,
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121 key: &HgPath,
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122 ) -> Result<Option<&HgPath>, DirstateV2ParseError>;
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123
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124 fn copy_map_remove(
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125 &mut self,
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126 key: &HgPath,
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127 ) -> Result<Option<HgPathBuf>, DirstateV2ParseError>;
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128
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129 fn copy_map_insert(
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130 &mut self,
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131 key: HgPathBuf,
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132 value: HgPathBuf,
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133 ) -> Result<Option<HgPathBuf>, DirstateV2ParseError>;
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134
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135 fn len(&self) -> usize;
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136
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137 fn contains_key(&self, key: &HgPath)
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138 -> Result<bool, DirstateV2ParseError>;
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139
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140 fn get(
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141 &self,
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142 key: &HgPath,
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143 ) -> Result<Option<DirstateEntry>, DirstateV2ParseError>;
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144
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145 fn iter(&self) -> StateMapIter<'_>;
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146
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147 fn iter_directories(
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148 &self,
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149 ) -> Box<
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150 dyn Iterator<
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151 Item = Result<
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152 (&HgPath, Option<Timestamp>),
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153 DirstateV2ParseError,
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154 >,
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155 > + Send
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156 + '_,
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157 >;
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158 }
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159
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160 impl DirstateMapMethods for DirstateMap {
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161 fn clear(&mut self) {
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162 self.clear()
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163 }
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164
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165 fn add_file(
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166 &mut self,
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167 filename: &HgPath,
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168 old_state: EntryState,
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169 entry: DirstateEntry,
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170 ) -> Result<(), DirstateError> {
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171 self.add_file(filename, old_state, entry)
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172 }
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173
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174 fn remove_file(
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175 &mut self,
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176 filename: &HgPath,
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177 old_state: EntryState,
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178 size: i32,
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179 ) -> Result<(), DirstateError> {
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180 self.remove_file(filename, old_state, size)
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181 }
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182
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183 fn drop_file(
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184 &mut self,
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185 filename: &HgPath,
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186 old_state: EntryState,
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187 ) -> Result<bool, DirstateError> {
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188 self.drop_file(filename, old_state)
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189 }
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190
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191 fn clear_ambiguous_times(
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192 &mut self,
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193 filenames: Vec<HgPathBuf>,
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194 now: i32,
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195 ) -> Result<(), DirstateV2ParseError> {
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196 Ok(self.clear_ambiguous_times(filenames, now))
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197 }
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198
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199 fn non_normal_entries_contains(
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200 &mut self,
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201 key: &HgPath,
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202 ) -> Result<bool, DirstateV2ParseError> {
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203 let (non_normal, _other_parent) =
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204 self.get_non_normal_other_parent_entries();
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205 Ok(non_normal.contains(key))
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206 }
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207
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208 fn non_normal_entries_remove(&mut self, key: &HgPath) {
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209 self.non_normal_entries_remove(key)
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210 }
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211
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212 fn non_normal_or_other_parent_paths(
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213 &mut self,
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214 ) -> Box<dyn Iterator<Item = Result<&HgPath, DirstateV2ParseError>> + '_>
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215 {
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216 let (non_normal, other_parent) =
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217 self.get_non_normal_other_parent_entries();
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218 Box::new(non_normal.union(other_parent).map(|p| Ok(&**p)))
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219 }
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220
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221 fn set_non_normal_other_parent_entries(&mut self, force: bool) {
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222 self.set_non_normal_other_parent_entries(force)
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223 }
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224
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225 fn iter_non_normal_paths(
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226 &mut self,
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227 ) -> Box<
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228 dyn Iterator<Item = Result<&HgPath, DirstateV2ParseError>> + Send + '_,
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229 > {
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230 let (non_normal, _other_parent) =
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231 self.get_non_normal_other_parent_entries();
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232 Box::new(non_normal.iter().map(|p| Ok(&**p)))
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233 }
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234
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235 fn iter_non_normal_paths_panic(
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236 &self,
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237 ) -> Box<
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238 dyn Iterator<Item = Result<&HgPath, DirstateV2ParseError>> + Send + '_,
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239 > {
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240 let (non_normal, _other_parent) =
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241 self.get_non_normal_other_parent_entries_panic();
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242 Box::new(non_normal.iter().map(|p| Ok(&**p)))
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243 }
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244
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245 fn iter_other_parent_paths(
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246 &mut self,
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247 ) -> Box<
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248 dyn Iterator<Item = Result<&HgPath, DirstateV2ParseError>> + Send + '_,
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249 > {
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250 let (_non_normal, other_parent) =
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251 self.get_non_normal_other_parent_entries();
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252 Box::new(other_parent.iter().map(|p| Ok(&**p)))
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253 }
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254
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255 fn has_tracked_dir(
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256 &mut self,
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257 directory: &HgPath,
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258 ) -> Result<bool, DirstateError> {
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259 self.has_tracked_dir(directory)
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260 }
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261
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262 fn has_dir(&mut self, directory: &HgPath) -> Result<bool, DirstateError> {
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263 self.has_dir(directory)
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264 }
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265
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266 fn pack_v1(
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267 &mut self,
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268 parents: DirstateParents,
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269 now: Timestamp,
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270 ) -> Result<Vec<u8>, DirstateError> {
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271 self.pack(parents, now)
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272 }
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273
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274 fn pack_v2(
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275 &mut self,
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276 _parents: DirstateParents,
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277 _now: Timestamp,
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278 ) -> Result<Vec<u8>, DirstateError> {
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279 panic!(
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280 "should have used dirstate_tree::DirstateMap to use the v2 format"
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281 )
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282 }
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283
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284 fn set_all_dirs(&mut self) -> Result<(), DirstateError> {
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285 self.set_all_dirs()
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286 }
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287
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288 fn set_dirs(&mut self) -> Result<(), DirstateError> {
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289 self.set_dirs()
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290 }
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291
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292 fn status<'a>(
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293 &'a mut self,
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294 matcher: &'a (dyn Matcher + Sync),
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295 root_dir: PathBuf,
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296 ignore_files: Vec<PathBuf>,
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297 options: StatusOptions,
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298 ) -> Result<(DirstateStatus<'a>, Vec<PatternFileWarning>), StatusError>
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299 {
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300 crate::status(self, matcher, root_dir, ignore_files, options)
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301 }
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302
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303 fn copy_map_len(&self) -> usize {
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304 self.copy_map.len()
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305 }
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306
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307 fn copy_map_iter(&self) -> CopyMapIter<'_> {
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308 Box::new(
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309 self.copy_map
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310 .iter()
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311 .map(|(key, value)| Ok((&**key, &**value))),
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312 )
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313 }
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314
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315 fn copy_map_contains_key(
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316 &self,
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317 key: &HgPath,
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318 ) -> Result<bool, DirstateV2ParseError> {
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319 Ok(self.copy_map.contains_key(key))
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320 }
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321
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322 fn copy_map_get(
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323 &self,
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324 key: &HgPath,
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325 ) -> Result<Option<&HgPath>, DirstateV2ParseError> {
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326 Ok(self.copy_map.get(key).map(|p| &**p))
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327 }
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328
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329 fn copy_map_remove(
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330 &mut self,
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331 key: &HgPath,
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332 ) -> Result<Option<HgPathBuf>, DirstateV2ParseError> {
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333 Ok(self.copy_map.remove(key))
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334 }
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335
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336 fn copy_map_insert(
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337 &mut self,
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338 key: HgPathBuf,
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339 value: HgPathBuf,
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340 ) -> Result<Option<HgPathBuf>, DirstateV2ParseError> {
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341 Ok(self.copy_map.insert(key, value))
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342 }
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343
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344 fn len(&self) -> usize {
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345 (&**self).len()
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346 }
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347
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348 fn contains_key(
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349 &self,
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350 key: &HgPath,
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351 ) -> Result<bool, DirstateV2ParseError> {
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352 Ok((&**self).contains_key(key))
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353 }
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354
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355 fn get(
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356 &self,
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357 key: &HgPath,
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358 ) -> Result<Option<DirstateEntry>, DirstateV2ParseError> {
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359 Ok((&**self).get(key).cloned())
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360 }
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361
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362 fn iter(&self) -> StateMapIter<'_> {
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363 Box::new((&**self).iter().map(|(key, value)| Ok((&**key, *value))))
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364 }
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365
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366 fn iter_directories(
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367 &self,
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368 ) -> Box<
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369 dyn Iterator<
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370 Item = Result<
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371 (&HgPath, Option<Timestamp>),
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372 DirstateV2ParseError,
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373 >,
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374 > + Send
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375 + '_,
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376 > {
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377 Box::new(std::iter::empty())
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378 }
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379 }