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annotate rust/hg-core/src/utils/files.rs @ 47779:cf5f8da2244c stable

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rhg: Propagate permission errors when finding a repository The Rust standard library has a `Path::is_dir` method that returns false for any I/O error (such as a permission error), not just "No such file or directory". Instead add an `is_dir` function that returns false for non-directories and for "No such file or directory" errors, but propagates other I/O errors. Differential Revision: https://phab.mercurial-scm.org/D11230
author Simon Sapin <simon.sapin@octobus.net>
date Thu, 29 Jul 2021 12:22:25 +0200
parents be579775c2d9
children 789475ef2b22
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // files.rs
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2 //
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3 // Copyright 2019
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4 // Raphaël Gomès <rgomes@octobus.net>,
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5 // Yuya Nishihara <yuya@tcha.org>
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6 //
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7 // This software may be used and distributed according to the terms of the
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8 // GNU General Public License version 2 or any later version.
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9
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10 //! Functions for fiddling with files.
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11
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12 use crate::utils::{
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13 hg_path::{path_to_hg_path_buf, HgPath, HgPathBuf, HgPathError},
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14 path_auditor::PathAuditor,
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15 replace_slice,
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16 };
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17 use lazy_static::lazy_static;
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18 use same_file::is_same_file;
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19 use std::borrow::{Cow, ToOwned};
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20 use std::ffi::{OsStr, OsString};
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21 use std::fs::Metadata;
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22 use std::iter::FusedIterator;
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23 use std::ops::Deref;
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24 use std::path::{Path, PathBuf};
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25
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26 pub fn get_os_str_from_bytes(bytes: &[u8]) -> &OsStr {
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27 let os_str;
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28 #[cfg(unix)]
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29 {
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30 use std::os::unix::ffi::OsStrExt;
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31 os_str = std::ffi::OsStr::from_bytes(bytes);
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32 }
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33 // TODO Handle other platforms
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34 // TODO: convert from WTF8 to Windows MBCS (ANSI encoding).
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35 // Perhaps, the return type would have to be Result<PathBuf>.
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36 os_str
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37 }
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38
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39 pub fn get_path_from_bytes(bytes: &[u8]) -> &Path {
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40 Path::new(get_os_str_from_bytes(bytes))
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41 }
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42
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43 // TODO: need to convert from WTF8 to MBCS bytes on Windows.
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44 // that's why Vec<u8> is returned.
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45 #[cfg(unix)]
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46 pub fn get_bytes_from_path(path: impl AsRef<Path>) -> Vec<u8> {
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47 get_bytes_from_os_str(path.as_ref())
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48 }
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49
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50 #[cfg(unix)]
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51 pub fn get_bytes_from_os_str(str: impl AsRef<OsStr>) -> Vec<u8> {
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52 use std::os::unix::ffi::OsStrExt;
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53 str.as_ref().as_bytes().to_vec()
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54 }
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55
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56 #[cfg(unix)]
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57 pub fn get_bytes_from_os_string(str: OsString) -> Vec<u8> {
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58 use std::os::unix::ffi::OsStringExt;
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59 str.into_vec()
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60 }
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61
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62 /// An iterator over repository path yielding itself and its ancestors.
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63 #[derive(Copy, Clone, Debug)]
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64 pub struct Ancestors<'a> {
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65 next: Option<&'a HgPath>,
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66 }
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67
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68 impl<'a> Iterator for Ancestors<'a> {
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69 type Item = &'a HgPath;
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70
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71 fn next(&mut self) -> Option<Self::Item> {
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72 let next = self.next;
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73 self.next = match self.next {
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74 Some(s) if s.is_empty() => None,
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75 Some(s) => {
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76 let p = s.bytes().rposition(|c| *c == b'/').unwrap_or(0);
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77 Some(HgPath::new(&s.as_bytes()[..p]))
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78 }
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79 None => None,
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80 };
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81 next
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82 }
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83 }
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84
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85 impl<'a> FusedIterator for Ancestors<'a> {}
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86
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87 /// An iterator over repository path yielding itself and its ancestors.
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88 #[derive(Copy, Clone, Debug)]
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89 pub(crate) struct AncestorsWithBase<'a> {
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90 next: Option<(&'a HgPath, &'a HgPath)>,
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91 }
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92
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93 impl<'a> Iterator for AncestorsWithBase<'a> {
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94 type Item = (&'a HgPath, &'a HgPath);
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95
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96 fn next(&mut self) -> Option<Self::Item> {
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97 let next = self.next;
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98 self.next = match self.next {
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99 Some((s, _)) if s.is_empty() => None,
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100 Some((s, _)) => Some(s.split_filename()),
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101 None => None,
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102 };
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103 next
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104 }
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105 }
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106
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107 impl<'a> FusedIterator for AncestorsWithBase<'a> {}
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108
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109 /// Returns an iterator yielding ancestor directories of the given repository
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110 /// path.
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111 ///
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112 /// The path is separated by '/', and must not start with '/'.
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113 ///
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114 /// The path itself isn't included unless it is b"" (meaning the root
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115 /// directory.)
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116 pub fn find_dirs(path: &HgPath) -> Ancestors {
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117 let mut dirs = Ancestors { next: Some(path) };
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118 if !path.is_empty() {
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119 dirs.next(); // skip itself
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120 }
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121 dirs
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122 }
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123
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124 /// Returns an iterator yielding ancestor directories of the given repository
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125 /// path.
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126 ///
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127 /// The path is separated by '/', and must not start with '/'.
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128 ///
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129 /// The path itself isn't included unless it is b"" (meaning the root
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130 /// directory.)
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131 pub(crate) fn find_dirs_with_base(path: &HgPath) -> AncestorsWithBase {
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132 let mut dirs = AncestorsWithBase {
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133 next: Some((path, HgPath::new(b""))),
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134 };
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135 if !path.is_empty() {
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136 dirs.next(); // skip itself
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137 }
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138 dirs
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139 }
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140
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141 /// TODO more than ASCII?
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142 pub fn normalize_case(path: &HgPath) -> HgPathBuf {
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143 #[cfg(windows)] // NTFS compares via upper()
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144 return path.to_ascii_uppercase();
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145 #[cfg(unix)]
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146 path.to_ascii_lowercase()
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147 }
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148
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149 lazy_static! {
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150 static ref IGNORED_CHARS: Vec<Vec<u8>> = {
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151 [
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152 0x200c, 0x200d, 0x200e, 0x200f, 0x202a, 0x202b, 0x202c, 0x202d,
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153 0x202e, 0x206a, 0x206b, 0x206c, 0x206d, 0x206e, 0x206f, 0xfeff,
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154 ]
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155 .iter()
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156 .map(|code| {
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157 std::char::from_u32(*code)
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158 .unwrap()
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159 .encode_utf8(&mut [0; 3])
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160 .bytes()
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161 .collect()
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162 })
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163 .collect()
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164 };
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165 }
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166
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167 fn hfs_ignore_clean(bytes: &[u8]) -> Vec<u8> {
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168 let mut buf = bytes.to_owned();
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169 let needs_escaping = bytes.iter().any(|b| *b == b'\xe2' || *b == b'\xef');
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170 if needs_escaping {
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171 for forbidden in IGNORED_CHARS.iter() {
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172 replace_slice(&mut buf, forbidden, &[])
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173 }
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174 buf
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175 } else {
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176 buf
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177 }
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178 }
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179
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180 pub fn lower_clean(bytes: &[u8]) -> Vec<u8> {
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181 hfs_ignore_clean(&bytes.to_ascii_lowercase())
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182 }
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183
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184 #[derive(Eq, PartialEq, Ord, PartialOrd, Copy, Clone)]
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185 pub struct HgMetadata {
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186 pub st_dev: u64,
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187 pub st_mode: u32,
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188 pub st_nlink: u64,
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189 pub st_size: u64,
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190 pub st_mtime: i64,
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191 pub st_ctime: i64,
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192 }
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193
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194 // TODO support other plaforms
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195 #[cfg(unix)]
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196 impl HgMetadata {
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197 pub fn from_metadata(metadata: Metadata) -> Self {
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198 use std::os::unix::fs::MetadataExt;
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199 Self {
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200 st_dev: metadata.dev(),
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201 st_mode: metadata.mode(),
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202 st_nlink: metadata.nlink(),
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203 st_size: metadata.size(),
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204 st_mtime: metadata.mtime(),
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205 st_ctime: metadata.ctime(),
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206 }
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207 }
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208
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209 pub fn is_symlink(&self) -> bool {
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210 // This is way too manual, but `HgMetadata` will go away in the
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211 // near-future dirstate rewrite anyway.
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212 self.st_mode & 0170000 == 0120000
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213 }
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214 }
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215
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216 /// Returns the canonical path of `name`, given `cwd` and `root`
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217 pub fn canonical_path(
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218 root: impl AsRef<Path>,
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219 cwd: impl AsRef<Path>,
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220 name: impl AsRef<Path>,
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221 ) -> Result<PathBuf, HgPathError> {
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222 // TODO add missing normalization for other platforms
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223 let root = root.as_ref();
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224 let cwd = cwd.as_ref();
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225 let name = name.as_ref();
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226
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227 let name = if !name.is_absolute() {
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228 root.join(&cwd).join(&name)
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229 } else {
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230 name.to_owned()
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231 };
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232 let auditor = PathAuditor::new(&root);
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233 if name != root && name.starts_with(&root) {
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234 let name = name.strip_prefix(&root).unwrap();
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235 auditor.audit_path(path_to_hg_path_buf(name)?)?;
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236 Ok(name.to_owned())
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237 } else if name == root {
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238 Ok("".into())
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239 } else {
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240 // Determine whether `name' is in the hierarchy at or beneath `root',
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241 // by iterating name=name.parent() until it returns `None` (can't
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242 // check name == '/', because that doesn't work on windows).
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243 let mut name = name.deref();
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244 let original_name = name.to_owned();
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245 loop {
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246 let same = is_same_file(&name, &root).unwrap_or(false);
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247 if same {
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248 if name == original_name {
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249 // `name` was actually the same as root (maybe a symlink)
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250 return Ok("".into());
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251 }
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252 // `name` is a symlink to root, so `original_name` is under
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253 // root
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254 let rel_path = original_name.strip_prefix(&name).unwrap();
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255 auditor.audit_path(path_to_hg_path_buf(&rel_path)?)?;
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256 return Ok(rel_path.to_owned());
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257 }
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258 name = match name.parent() {
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259 None => break,
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260 Some(p) => p,
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261 };
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262 }
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263 // TODO hint to the user about using --cwd
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264 // Bubble up the responsibility to Python for now
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265 Err(HgPathError::NotUnderRoot {
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266 path: original_name.to_owned(),
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267 root: root.to_owned(),
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268 })
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269 }
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270 }
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271
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272 /// Returns the representation of the path relative to the current working
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273 /// directory for display purposes.
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274 ///
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275 /// `cwd` is a `HgPath`, so it is considered relative to the root directory
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276 /// of the repository.
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277 ///
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278 /// # Examples
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279 ///
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280 /// ```
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281 /// use hg::utils::hg_path::HgPath;
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282 /// use hg::utils::files::relativize_path;
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283 /// use std::borrow::Cow;
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284 ///
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285 /// let file = HgPath::new(b"nested/file");
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286 /// let cwd = HgPath::new(b"");
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287 /// assert_eq!(relativize_path(file, cwd), Cow::Borrowed(b"nested/file"));
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288 ///
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289 /// let cwd = HgPath::new(b"nested");
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290 /// assert_eq!(relativize_path(file, cwd), Cow::Borrowed(b"file"));
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291 ///
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292 /// let cwd = HgPath::new(b"other");
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293 /// assert_eq!(relativize_path(file, cwd), Cow::Borrowed(b"../nested/file"));
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294 /// ```
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295 pub fn relativize_path(path: &HgPath, cwd: impl AsRef<HgPath>) -> Cow<[u8]> {
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296 if cwd.as_ref().is_empty() {
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297 Cow::Borrowed(path.as_bytes())
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298 } else {
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299 // This is not all accurate as to how large `res` will actually be, but
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300 // profiling `rhg files` on a large-ish repo shows it’s better than
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301 // starting from a zero-capacity `Vec` and letting `extend` reallocate
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302 // repeatedly.
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303 let guesstimate = path.as_bytes().len();
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304
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305 let mut res: Vec<u8> = Vec::with_capacity(guesstimate);
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306 let mut path_iter = path.as_bytes().split(|b| *b == b'/').peekable();
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307 let mut cwd_iter =
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308 cwd.as_ref().as_bytes().split(|b| *b == b'/').peekable();
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309 loop {
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310 match (path_iter.peek(), cwd_iter.peek()) {
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311 (Some(a), Some(b)) if a == b => (),
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312 _ => break,
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313 }
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314 path_iter.next();
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315 cwd_iter.next();
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316 }
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317 let mut need_sep = false;
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318 for _ in cwd_iter {
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319 if need_sep {
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320 res.extend(b"/")
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321 } else {
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322 need_sep = true
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323 };
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324 res.extend(b"..");
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325 }
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326 for c in path_iter {
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327 if need_sep {
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328 res.extend(b"/")
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329 } else {
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330 need_sep = true
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331 };
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332 res.extend(c);
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333 }
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334 Cow::Owned(res)
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335 }
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336 }
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337
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338 #[cfg(test)]
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339 mod tests {
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340 use super::*;
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341 use pretty_assertions::assert_eq;
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342
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343 #[test]
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344 fn find_dirs_some() {
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345 let mut dirs = super::find_dirs(HgPath::new(b"foo/bar/baz"));
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346 assert_eq!(dirs.next(), Some(HgPath::new(b"foo/bar")));
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347 assert_eq!(dirs.next(), Some(HgPath::new(b"foo")));
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348 assert_eq!(dirs.next(), Some(HgPath::new(b"")));
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349 assert_eq!(dirs.next(), None);
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350 assert_eq!(dirs.next(), None);
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351 }
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352
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353 #[test]
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354 fn find_dirs_empty() {
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355 // looks weird, but mercurial.pathutil.finddirs(b"") yields b""
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356 let mut dirs = super::find_dirs(HgPath::new(b""));
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357 assert_eq!(dirs.next(), Some(HgPath::new(b"")));
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358 assert_eq!(dirs.next(), None);
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359 assert_eq!(dirs.next(), None);
cad3dde7a573 rust-dirstate: add helper to iterate ancestor paths
Yuya Nishihara <yuya@tcha.org>
parents: 42499
diff changeset
360 }
44314
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
361
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
362 #[test]
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
363 fn test_find_dirs_with_base_some() {
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
364 let mut dirs = super::find_dirs_with_base(HgPath::new(b"foo/bar/baz"));
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
365 assert_eq!(
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
366 dirs.next(),
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
367 Some((HgPath::new(b"foo/bar"), HgPath::new(b"baz")))
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
368 );
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
369 assert_eq!(
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
370 dirs.next(),
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
371 Some((HgPath::new(b"foo"), HgPath::new(b"bar")))
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
372 );
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
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373 assert_eq!(dirs.next(), Some((HgPath::new(b""), HgPath::new(b"foo"))));
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
374 assert_eq!(dirs.next(), None);
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
375 assert_eq!(dirs.next(), None);
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
376 }
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
377
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
378 #[test]
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
379 fn test_find_dirs_with_base_empty() {
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
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parents: 44312
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380 let mut dirs = super::find_dirs_with_base(HgPath::new(b""));
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
381 assert_eq!(dirs.next(), Some((HgPath::new(b""), HgPath::new(b""))));
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
382 assert_eq!(dirs.next(), None);
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
383 assert_eq!(dirs.next(), None);
0e9ac3968b56 rust-dirs-multiset: add `DirsChildrenMultiset`
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44312
diff changeset
384 }
44345
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
385
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
386 #[test]
4caac36c66bc rust-utils: add util for canonical path
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parents: 44314
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387 fn test_canonical_path() {
4caac36c66bc rust-utils: add util for canonical path
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parents: 44314
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388 let root = Path::new("/repo");
4caac36c66bc rust-utils: add util for canonical path
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parents: 44314
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389 let cwd = Path::new("/dir");
4caac36c66bc rust-utils: add util for canonical path
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parents: 44314
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390 let name = Path::new("filename");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
391 assert_eq!(
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
392 canonical_path(root, cwd, name),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
393 Err(HgPathError::NotUnderRoot {
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
394 path: PathBuf::from("/dir/filename"),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
395 root: root.to_path_buf()
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
396 })
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
397 );
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
398
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
399 let root = Path::new("/repo");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
400 let cwd = Path::new("/");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
401 let name = Path::new("filename");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
402 assert_eq!(
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
403 canonical_path(root, cwd, name),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
404 Err(HgPathError::NotUnderRoot {
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
405 path: PathBuf::from("/filename"),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
406 root: root.to_path_buf()
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
407 })
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
408 );
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
409
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
410 let root = Path::new("/repo");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
411 let cwd = Path::new("/");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
412 let name = Path::new("repo/filename");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
413 assert_eq!(
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
414 canonical_path(root, cwd, name),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
415 Ok(PathBuf::from("filename"))
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
416 );
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
417
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
418 let root = Path::new("/repo");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
419 let cwd = Path::new("/repo");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
420 let name = Path::new("filename");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
421 assert_eq!(
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
422 canonical_path(root, cwd, name),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
423 Ok(PathBuf::from("filename"))
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
424 );
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
425
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
426 let root = Path::new("/repo");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
427 let cwd = Path::new("/repo/subdir");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
428 let name = Path::new("filename");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
429 assert_eq!(
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
430 canonical_path(root, cwd, name),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
431 Ok(PathBuf::from("subdir/filename"))
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
432 );
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
433 }
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
434
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
435 #[test]
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
436 fn test_canonical_path_not_rooted() {
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
437 use std::fs::create_dir;
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
438 use tempfile::tempdir;
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
439
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
440 let base_dir = tempdir().unwrap();
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
441 let base_dir_path = base_dir.path();
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
442 let beneath_repo = base_dir_path.join("a");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
443 let root = base_dir_path.join("a/b");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
444 let out_of_repo = base_dir_path.join("c");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
445 let under_repo_symlink = out_of_repo.join("d");
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
446
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
447 create_dir(&beneath_repo).unwrap();
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
448 create_dir(&root).unwrap();
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
449
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
450 // TODO make portable
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
451 std::os::unix::fs::symlink(&root, &out_of_repo).unwrap();
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
452
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
453 assert_eq!(
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
454 canonical_path(&root, Path::new(""), out_of_repo),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
455 Ok(PathBuf::from(""))
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
456 );
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
457 assert_eq!(
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
458 canonical_path(&root, Path::new(""), &beneath_repo),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
459 Err(HgPathError::NotUnderRoot {
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
460 path: beneath_repo.to_owned(),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
461 root: root.to_owned()
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
462 })
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
463 );
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
464 assert_eq!(
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
465 canonical_path(&root, Path::new(""), &under_repo_symlink),
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
466 Ok(PathBuf::from("d"))
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
467 );
4caac36c66bc rust-utils: add util for canonical path
Rapha?l Gom?s <rgomes@octobus.net>
parents: 44314
diff changeset
468 }
42586
cad3dde7a573 rust-dirstate: add helper to iterate ancestor paths
Yuya Nishihara <yuya@tcha.org>
parents: 42499
diff changeset
469 }