annotate rust/hg-core/src/dirstate/entry.rs @ 48194:1000db4a71f1

dirstate-v2: Store unsigned integers inside DirstateEntry The negative marker values are not used anymore. Differential Revision: https://phab.mercurial-scm.org/D11634
author Simon Sapin <simon.sapin@octobus.net>
date Mon, 11 Oct 2021 18:37:21 +0200
parents 320de901896a
children 15dedc0c5c35
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1 use crate::dirstate_tree::on_disk::DirstateV2ParseError;
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2 use crate::errors::HgError;
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3 use bitflags::bitflags;
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4 use std::convert::TryFrom;
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5 use std::time::{SystemTime, UNIX_EPOCH};
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6
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7 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
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8 pub enum EntryState {
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9 Normal,
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10 Added,
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11 Removed,
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12 Merged,
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13 }
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14
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15 /// The C implementation uses all signed types. This will be an issue
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16 /// either when 4GB+ source files are commonplace or in 2038, whichever
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17 /// comes first.
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18 #[derive(Debug, PartialEq, Copy, Clone)]
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19 pub struct DirstateEntry {
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20 pub(crate) flags: Flags,
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21 mode_size: Option<(u32, u32)>,
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22 mtime: Option<u32>,
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23 }
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24
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25 bitflags! {
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26 pub(crate) struct Flags: u8 {
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27 const WDIR_TRACKED = 1 << 0;
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28 const P1_TRACKED = 1 << 1;
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29 const P2_INFO = 1 << 2;
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30 }
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31 }
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32
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33 /// A Unix timestamp with nanoseconds precision
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34 #[derive(Copy, Clone)]
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35 pub struct TruncatedTimestamp {
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36 truncated_seconds: u32,
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37 /// Always in the `0 .. 1_000_000_000` range.
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38 nanoseconds: u32,
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39 }
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40
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41 impl TruncatedTimestamp {
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42 /// Constructs from a timestamp potentially outside of the supported range,
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43 /// and truncate the seconds components to its lower 31 bits.
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44 ///
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45 /// Panics if the nanoseconds components is not in the expected range.
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46 pub fn new_truncate(seconds: i64, nanoseconds: u32) -> Self {
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47 assert!(nanoseconds < NSEC_PER_SEC);
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48 Self {
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49 truncated_seconds: seconds as u32 & RANGE_MASK_31BIT,
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50 nanoseconds,
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51 }
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52 }
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53
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54 /// Construct from components. Returns an error if they are not in the
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55 /// expcted range.
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56 pub fn from_already_truncated(
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57 truncated_seconds: u32,
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58 nanoseconds: u32,
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59 ) -> Result<Self, DirstateV2ParseError> {
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60 if truncated_seconds & !RANGE_MASK_31BIT == 0
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61 && nanoseconds < NSEC_PER_SEC
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62 {
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63 Ok(Self {
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64 truncated_seconds,
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65 nanoseconds,
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66 })
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67 } else {
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68 Err(DirstateV2ParseError)
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69 }
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70 }
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71
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72 /// The lower 31 bits of the number of seconds since the epoch.
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73 pub fn truncated_seconds(&self) -> u32 {
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74 self.truncated_seconds
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75 }
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76
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77 /// The sub-second component of this timestamp, in nanoseconds.
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78 /// Always in the `0 .. 1_000_000_000` range.
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79 ///
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80 /// This timestamp is after `(seconds, 0)` by this many nanoseconds.
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81 pub fn nanoseconds(&self) -> u32 {
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82 self.nanoseconds
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83 }
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84
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85 /// Returns whether two timestamps are equal modulo 2**31 seconds.
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86 ///
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87 /// If this returns `true`, the original values converted from `SystemTime`
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88 /// or given to `new_truncate` were very likely equal. A false positive is
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89 /// possible if they were exactly a multiple of 2**31 seconds apart (around
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90 /// 68 years). This is deemed very unlikely to happen by chance, especially
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91 /// on filesystems that support sub-second precision.
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92 ///
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93 /// If someone is manipulating the modification times of some files to
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94 /// intentionally make `hg status` return incorrect results, not truncating
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95 /// wouldn’t help much since they can set exactly the expected timestamp.
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96 pub fn very_likely_equal(&self, other: &Self) -> bool {
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97 self.truncated_seconds == other.truncated_seconds
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98 && self.nanoseconds == other.nanoseconds
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99 }
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100 }
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101
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102 impl From<SystemTime> for TruncatedTimestamp {
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103 fn from(system_time: SystemTime) -> Self {
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104 // On Unix, `SystemTime` is a wrapper for the `timespec` C struct:
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105 // https://www.gnu.org/software/libc/manual/html_node/Time-Types.html#index-struct-timespec
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106 // We want to effectively access its fields, but the Rust standard
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107 // library does not expose them. The best we can do is:
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108 let seconds;
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109 let nanoseconds;
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110 match system_time.duration_since(UNIX_EPOCH) {
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111 Ok(duration) => {
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112 seconds = duration.as_secs() as i64;
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113 nanoseconds = duration.subsec_nanos();
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114 }
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115 Err(error) => {
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116 // `system_time` is before `UNIX_EPOCH`.
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117 // We need to undo this algorithm:
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118 // https://github.com/rust-lang/rust/blob/6bed1f0bc3cc50c10aab26d5f94b16a00776b8a5/library/std/src/sys/unix/time.rs#L40-L41
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119 let negative = error.duration();
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120 let negative_secs = negative.as_secs() as i64;
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121 let negative_nanos = negative.subsec_nanos();
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122 if negative_nanos == 0 {
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123 seconds = -negative_secs;
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124 nanoseconds = 0;
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125 } else {
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126 // For example if `system_time` was 4.3 seconds before
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127 // the Unix epoch we get a Duration that represents
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128 // `(-4, -0.3)` but we want `(-5, +0.7)`:
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129 seconds = -1 - negative_secs;
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130 nanoseconds = NSEC_PER_SEC - negative_nanos;
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131 }
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132 }
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133 };
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134 Self::new_truncate(seconds, nanoseconds)
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135 }
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136 }
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137
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138 const NSEC_PER_SEC: u32 = 1_000_000_000;
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139 const RANGE_MASK_31BIT: u32 = 0x7FFF_FFFF;
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140
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141 pub const MTIME_UNSET: i32 = -1;
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142
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143 /// A `DirstateEntry` with a size of `-2` means that it was merged from the
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144 /// other parent. This allows revert to pick the right status back during a
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145 /// merge.
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146 pub const SIZE_FROM_OTHER_PARENT: i32 = -2;
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147 /// A special value used for internal representation of special case in
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148 /// dirstate v1 format.
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149 pub const SIZE_NON_NORMAL: i32 = -1;
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150
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151 impl DirstateEntry {
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152 pub fn from_v2_data(
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153 wdir_tracked: bool,
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154 p1_tracked: bool,
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155 p2_info: bool,
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156 mode_size: Option<(u32, u32)>,
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157 mtime: Option<u32>,
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158 ) -> Self {
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159 if let Some((mode, size)) = mode_size {
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160 // TODO: return an error for out of range values?
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161 assert!(mode & !RANGE_MASK_31BIT == 0);
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162 assert!(size & !RANGE_MASK_31BIT == 0);
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163 }
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164 if let Some(mtime) = mtime {
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165 assert!(mtime & !RANGE_MASK_31BIT == 0);
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166 }
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167 let mut flags = Flags::empty();
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168 flags.set(Flags::WDIR_TRACKED, wdir_tracked);
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169 flags.set(Flags::P1_TRACKED, p1_tracked);
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170 flags.set(Flags::P2_INFO, p2_info);
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171 Self {
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172 flags,
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173 mode_size,
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174 mtime,
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175 }
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176 }
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177
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178 pub fn from_v1_data(
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179 state: EntryState,
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180 mode: i32,
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181 size: i32,
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182 mtime: i32,
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183 ) -> Self {
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184 match state {
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185 EntryState::Normal => {
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186 if size == SIZE_FROM_OTHER_PARENT {
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187 Self {
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188 // might be missing P1_TRACKED
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189 flags: Flags::WDIR_TRACKED | Flags::P2_INFO,
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190 mode_size: None,
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191 mtime: None,
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192 }
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193 } else if size == SIZE_NON_NORMAL {
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194 Self {
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195 flags: Flags::WDIR_TRACKED | Flags::P1_TRACKED,
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196 mode_size: None,
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197 mtime: None,
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198 }
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199 } else if mtime == MTIME_UNSET {
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200 // TODO: return an error for negative values?
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201 let mode = u32::try_from(mode).unwrap();
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202 let size = u32::try_from(size).unwrap();
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203 Self {
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204 flags: Flags::WDIR_TRACKED | Flags::P1_TRACKED,
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205 mode_size: Some((mode, size)),
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206 mtime: None,
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207 }
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208 } else {
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209 // TODO: return an error for negative values?
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210 let mode = u32::try_from(mode).unwrap();
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211 let size = u32::try_from(size).unwrap();
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212 let mtime = u32::try_from(mtime).unwrap();
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213 Self {
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214 flags: Flags::WDIR_TRACKED | Flags::P1_TRACKED,
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215 mode_size: Some((mode, size)),
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216 mtime: Some(mtime),
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217 }
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218 }
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219 }
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220 EntryState::Added => Self {
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221 flags: Flags::WDIR_TRACKED,
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222 mode_size: None,
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223 mtime: None,
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224 },
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225 EntryState::Removed => Self {
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226 flags: if size == SIZE_NON_NORMAL {
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227 Flags::P1_TRACKED | Flags::P2_INFO
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228 } else if size == SIZE_FROM_OTHER_PARENT {
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229 // We don’t know if P1_TRACKED should be set (file history)
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230 Flags::P2_INFO
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231 } else {
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232 Flags::P1_TRACKED
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233 },
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234 mode_size: None,
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235 mtime: None,
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236 },
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237 EntryState::Merged => Self {
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238 flags: Flags::WDIR_TRACKED
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239 | Flags::P1_TRACKED // might not be true because of rename ?
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240 | Flags::P2_INFO, // might not be true because of rename ?
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241 mode_size: None,
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242 mtime: None,
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243 },
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244 }
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245 }
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246
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247 /// Creates a new entry in "removed" state.
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248 ///
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249 /// `size` is expected to be zero, `SIZE_NON_NORMAL`, or
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250 /// `SIZE_FROM_OTHER_PARENT`
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251 pub fn new_removed(size: i32) -> Self {
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252 Self::from_v1_data(EntryState::Removed, 0, size, 0)
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253 }
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254
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255 pub fn tracked(&self) -> bool {
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256 self.flags.contains(Flags::WDIR_TRACKED)
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257 }
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258
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259 pub fn p1_tracked(&self) -> bool {
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260 self.flags.contains(Flags::P1_TRACKED)
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261 }
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262
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263 fn in_either_parent(&self) -> bool {
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264 self.flags.intersects(Flags::P1_TRACKED | Flags::P2_INFO)
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265 }
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266
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267 pub fn removed(&self) -> bool {
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268 self.in_either_parent() && !self.flags.contains(Flags::WDIR_TRACKED)
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269 }
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270
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271 pub fn p2_info(&self) -> bool {
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272 self.flags.contains(Flags::WDIR_TRACKED | Flags::P2_INFO)
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273 }
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274
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275 pub fn added(&self) -> bool {
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276 self.flags.contains(Flags::WDIR_TRACKED) && !self.in_either_parent()
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277 }
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278
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279 pub fn maybe_clean(&self) -> bool {
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280 if !self.flags.contains(Flags::WDIR_TRACKED) {
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281 false
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282 } else if !self.flags.contains(Flags::P1_TRACKED) {
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283 false
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284 } else if self.flags.contains(Flags::P2_INFO) {
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285 false
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286 } else {
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287 true
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288 }
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289 }
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290
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291 pub fn any_tracked(&self) -> bool {
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292 self.flags.intersects(
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293 Flags::WDIR_TRACKED | Flags::P1_TRACKED | Flags::P2_INFO,
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294 )
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295 }
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296
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297 /// Returns `(wdir_tracked, p1_tracked, p2_info, mode_size, mtime)`
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298 pub(crate) fn v2_data(
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299 &self,
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300 ) -> (bool, bool, bool, Option<(u32, u32)>, Option<u32>) {
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301 if !self.any_tracked() {
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302 // TODO: return an Option instead?
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303 panic!("Accessing v1_state of an untracked DirstateEntry")
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304 }
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305 let wdir_tracked = self.flags.contains(Flags::WDIR_TRACKED);
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306 let p1_tracked = self.flags.contains(Flags::P1_TRACKED);
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307 let p2_info = self.flags.contains(Flags::P2_INFO);
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308 let mode_size = self.mode_size;
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309 let mtime = self.mtime;
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310 (wdir_tracked, p1_tracked, p2_info, mode_size, mtime)
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311 }
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312
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313 fn v1_state(&self) -> EntryState {
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314 if !self.any_tracked() {
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315 // TODO: return an Option instead?
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316 panic!("Accessing v1_state of an untracked DirstateEntry")
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317 }
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318 if self.removed() {
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319 EntryState::Removed
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320 } else if self
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321 .flags
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322 .contains(Flags::WDIR_TRACKED | Flags::P1_TRACKED | Flags::P2_INFO)
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323 {
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324 EntryState::Merged
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325 } else if self.added() {
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326 EntryState::Added
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327 } else {
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328 EntryState::Normal
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329 }
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330 }
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331
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332 fn v1_mode(&self) -> i32 {
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333 if let Some((mode, _size)) = self.mode_size {
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334 i32::try_from(mode).unwrap()
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335 } else {
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336 0
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337 }
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338 }
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339
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340 fn v1_size(&self) -> i32 {
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341 if !self.any_tracked() {
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342 // TODO: return an Option instead?
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343 panic!("Accessing v1_size of an untracked DirstateEntry")
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344 }
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345 if self.removed()
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346 && self.flags.contains(Flags::P1_TRACKED | Flags::P2_INFO)
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347 {
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348 SIZE_NON_NORMAL
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349 } else if self.flags.contains(Flags::P2_INFO) {
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350 SIZE_FROM_OTHER_PARENT
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351 } else if self.removed() {
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352 0
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353 } else if self.added() {
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354 SIZE_NON_NORMAL
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355 } else if let Some((_mode, size)) = self.mode_size {
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356 i32::try_from(size).unwrap()
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357 } else {
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358 SIZE_NON_NORMAL
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359 }
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360 }
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361
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362 fn v1_mtime(&self) -> i32 {
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363 if !self.any_tracked() {
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364 // TODO: return an Option instead?
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365 panic!("Accessing v1_mtime of an untracked DirstateEntry")
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366 }
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367 if self.removed() {
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368 0
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369 } else if self.flags.contains(Flags::P2_INFO) {
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370 MTIME_UNSET
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371 } else if !self.flags.contains(Flags::P1_TRACKED) {
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372 MTIME_UNSET
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373 } else if let Some(mtime) = self.mtime {
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374 i32::try_from(mtime).unwrap()
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375 } else {
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376 MTIME_UNSET
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377 }
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378 }
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379
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380 // TODO: return `Option<EntryState>`? None when `!self.any_tracked`
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381 pub fn state(&self) -> EntryState {
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382 self.v1_state()
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383 }
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384
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385 // TODO: return Option?
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386 pub fn mode(&self) -> i32 {
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387 self.v1_mode()
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388 }
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389
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390 // TODO: return Option?
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391 pub fn size(&self) -> i32 {
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392 self.v1_size()
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393 }
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394
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395 // TODO: return Option?
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396 pub fn mtime(&self) -> i32 {
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397 self.v1_mtime()
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398 }
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399
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400 pub fn drop_merge_data(&mut self) {
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401 if self.flags.contains(Flags::P2_INFO) {
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402 self.flags.remove(Flags::P2_INFO);
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403 self.mode_size = None;
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404 self.mtime = None;
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405 }
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406 }
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diff changeset
407
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diff changeset
408 pub fn set_possibly_dirty(&mut self) {
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409 self.mtime = None
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410 }
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diff changeset
411
48194
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diff changeset
412 pub fn set_clean(&mut self, mode: u32, size: u32, mtime: u32) {
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diff changeset
413 let size = size & RANGE_MASK_31BIT;
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diff changeset
414 let mtime = mtime & RANGE_MASK_31BIT;
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415 self.flags.insert(Flags::WDIR_TRACKED | Flags::P1_TRACKED);
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416 self.mode_size = Some((mode, size));
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diff changeset
417 self.mtime = Some(mtime);
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418 }
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419
3e69bef2031a rust: Add Python bindings for DirstateEntry as rustext.dirstate.DirstateItem
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diff changeset
420 pub fn set_tracked(&mut self) {
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421 self.flags.insert(Flags::WDIR_TRACKED);
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422 // `set_tracked` is replacing various `normallookup` call. So we mark
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diff changeset
423 // the files as needing lookup
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diff changeset
424 //
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diff changeset
425 // Consider dropping this in the future in favor of something less
38488d488ec1 dirstate-item: change the internal storage and constructor value
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diff changeset
426 // broad.
38488d488ec1 dirstate-item: change the internal storage and constructor value
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diff changeset
427 self.mtime = None;
48043
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diff changeset
428 }
3e69bef2031a rust: Add Python bindings for DirstateEntry as rustext.dirstate.DirstateItem
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diff changeset
429
3e69bef2031a rust: Add Python bindings for DirstateEntry as rustext.dirstate.DirstateItem
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diff changeset
430 pub fn set_untracked(&mut self) {
3e69bef2031a rust: Add Python bindings for DirstateEntry as rustext.dirstate.DirstateItem
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diff changeset
431 self.flags.remove(Flags::WDIR_TRACKED);
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diff changeset
432 self.mode_size = None;
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diff changeset
433 self.mtime = None;
48043
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diff changeset
434 }
3e69bef2031a rust: Add Python bindings for DirstateEntry as rustext.dirstate.DirstateItem
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diff changeset
435
48022
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diff changeset
436 /// Returns `(state, mode, size, mtime)` for the puprose of serialization
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diff changeset
437 /// in the dirstate-v1 format.
f2a9db29cb2d rust: Make the fields of DirstateEntry private
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diff changeset
438 ///
f2a9db29cb2d rust: Make the fields of DirstateEntry private
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diff changeset
439 /// This includes marker values such as `mtime == -1`. In the future we may
f2a9db29cb2d rust: Make the fields of DirstateEntry private
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diff changeset
440 /// want to not represent these cases that way in memory, but serialization
f2a9db29cb2d rust: Make the fields of DirstateEntry private
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diff changeset
441 /// will need to keep the same format.
f2a9db29cb2d rust: Make the fields of DirstateEntry private
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diff changeset
442 pub fn v1_data(&self) -> (u8, i32, i32, i32) {
48138
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diff changeset
443 (
38488d488ec1 dirstate-item: change the internal storage and constructor value
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diff changeset
444 self.v1_state().into(),
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diff changeset
445 self.v1_mode(),
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diff changeset
446 self.v1_size(),
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diff changeset
447 self.v1_mtime(),
38488d488ec1 dirstate-item: change the internal storage and constructor value
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diff changeset
448 )
48022
f2a9db29cb2d rust: Make the fields of DirstateEntry private
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449 }
f2a9db29cb2d rust: Make the fields of DirstateEntry private
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diff changeset
450
48061
060cd909439f dirstate: drop all logic around the "non-normal" sets
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48051
diff changeset
451 pub(crate) fn is_from_other_parent(&self) -> bool {
48042
008959fcbfb2 rust: Align DirstateEntry internals with Python/C DirstateItem
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diff changeset
452 self.state() == EntryState::Normal
008959fcbfb2 rust: Align DirstateEntry internals with Python/C DirstateItem
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diff changeset
453 && self.size() == SIZE_FROM_OTHER_PARENT
48018
08efe5945d2b rust: Move DirstateEntry to its own module
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diff changeset
454 }
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
455
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
456 // TODO: other platforms
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
457 #[cfg(unix)]
08efe5945d2b rust: Move DirstateEntry to its own module
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diff changeset
458 pub fn mode_changed(
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
459 &self,
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
460 filesystem_metadata: &std::fs::Metadata,
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
461 ) -> bool {
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
462 use std::os::unix::fs::MetadataExt;
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
463 const EXEC_BIT_MASK: u32 = 0o100;
48042
008959fcbfb2 rust: Align DirstateEntry internals with Python/C DirstateItem
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diff changeset
464 let dirstate_exec_bit = (self.mode() as u32) & EXEC_BIT_MASK;
48018
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
465 let fs_exec_bit = filesystem_metadata.mode() & EXEC_BIT_MASK;
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
466 dirstate_exec_bit != fs_exec_bit
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
467 }
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Simon Sapin <simon.sapin@octobus.net>
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468
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469 /// Returns a `(state, mode, size, mtime)` tuple as for
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470 /// `DirstateMapMethods::debug_iter`.
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471 pub fn debug_tuple(&self) -> (u8, i32, i32, i32) {
48138
38488d488ec1 dirstate-item: change the internal storage and constructor value
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48134
diff changeset
472 (self.state().into(), self.mode(), self.size(), self.mtime())
48018
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473 }
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474
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Simon Sapin <simon.sapin@octobus.net>
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475 pub fn mtime_is_ambiguous(&self, now: i32) -> bool {
48042
008959fcbfb2 rust: Align DirstateEntry internals with Python/C DirstateItem
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parents: 48026
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476 self.state() == EntryState::Normal && self.mtime() == now
48018
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477 }
08efe5945d2b rust: Move DirstateEntry to its own module
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478
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479 pub fn clear_ambiguous_mtime(&mut self, now: i32) -> bool {
08efe5945d2b rust: Move DirstateEntry to its own module
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480 let ambiguous = self.mtime_is_ambiguous(now);
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481 if ambiguous {
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482 // The file was last modified "simultaneously" with the current
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483 // write to dirstate (i.e. within the same second for file-
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484 // systems with a granularity of 1 sec). This commonly happens
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485 // for at least a couple of files on 'update'.
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486 // The user could change the file without changing its size
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487 // within the same second. Invalidate the file's mtime in
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488 // dirstate, forcing future 'status' calls to compare the
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489 // contents of the file if the size is the same. This prevents
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490 // mistakenly treating such files as clean.
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parents: 48134
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491 self.set_possibly_dirty()
48018
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492 }
08efe5945d2b rust: Move DirstateEntry to its own module
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493 ambiguous
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494 }
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
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495 }
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parents:
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496
08efe5945d2b rust: Move DirstateEntry to its own module
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497 impl EntryState {
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498 pub fn is_tracked(self) -> bool {
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499 use EntryState::*;
08efe5945d2b rust: Move DirstateEntry to its own module
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500 match self {
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501 Normal | Added | Merged => true,
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1b2ee68e85f9 rust: Remove EntryState::Unknown
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diff changeset
502 Removed => false,
48018
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503 }
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
504 }
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
505 }
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
506
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
507 impl TryFrom<u8> for EntryState {
08efe5945d2b rust: Move DirstateEntry to its own module
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diff changeset
508 type Error = HgError;
08efe5945d2b rust: Move DirstateEntry to its own module
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diff changeset
509
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
510 fn try_from(value: u8) -> Result<Self, Self::Error> {
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diff changeset
511 match value {
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
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512 b'n' => Ok(EntryState::Normal),
08efe5945d2b rust: Move DirstateEntry to its own module
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513 b'a' => Ok(EntryState::Added),
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diff changeset
514 b'r' => Ok(EntryState::Removed),
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diff changeset
515 b'm' => Ok(EntryState::Merged),
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
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516 _ => Err(HgError::CorruptedRepository(format!(
08efe5945d2b rust: Move DirstateEntry to its own module
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diff changeset
517 "Incorrect dirstate entry state {}",
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
518 value
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
519 ))),
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
520 }
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
521 }
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
522 }
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
523
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
524 impl Into<u8> for EntryState {
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
525 fn into(self) -> u8 {
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
526 match self {
08efe5945d2b rust: Move DirstateEntry to its own module
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parents:
diff changeset
527 EntryState::Normal => b'n',
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
528 EntryState::Added => b'a',
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
529 EntryState::Removed => b'r',
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
530 EntryState::Merged => b'm',
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
531 }
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
532 }
08efe5945d2b rust: Move DirstateEntry to its own module
Simon Sapin <simon.sapin@octobus.net>
parents:
diff changeset
533 }