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annotate rust/rhg/src/commands/files.rs @ 45543:2f8227a12592

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rhg: add `--revision` argument to `rhg files` Add the option to list the tracked files of a revision given its number or full node id. Benched on a clone of moz-central where tip is 1671467:81deaa1a68ebb28db0490954034ab38ab269409d files -r 81deaa1a68ebb28db0490954034ab38ab269409d > out.txt hg 0m1.633s rhg 0m0.157s files -r 81deaa1a68ebb28db0490954034ab38ab269409d > /dev/null hg 0m0.415s rhg 0m0.143s Differential Revision: https://phab.mercurial-scm.org/D9015
author Antoine Cezar <antoine.cezar@octobus.net>
date Wed, 09 Sep 2020 14:53:15 +0200
parents 72b7d58d6e35
children 2ad2745e0be9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 use crate::commands::Command;
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2 use crate::error::{CommandError, CommandErrorKind};
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3 use crate::ui::utf8_to_local;
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4 use crate::ui::Ui;
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5 use hg::operations::FindRoot;
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6 use hg::operations::{
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7 ListDirstateTrackedFiles, ListDirstateTrackedFilesError,
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8 ListDirstateTrackedFilesErrorKind,
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9 };
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10 use hg::operations::{
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11 ListRevTrackedFiles, ListRevTrackedFilesError,
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12 ListRevTrackedFilesErrorKind,
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13 };
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14 use hg::utils::files::{get_bytes_from_path, relativize_path};
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15 use hg::utils::hg_path::{HgPath, HgPathBuf};
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16 use std::path::PathBuf;
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17
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18 pub const HELP_TEXT: &str = "
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19 List tracked files.
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20
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21 Returns 0 on success.
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22 ";
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23
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24 pub struct FilesCommand<'a> {
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25 rev: Option<&'a str>,
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26 }
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27
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28 impl<'a> FilesCommand<'a> {
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29 pub fn new(rev: Option<&'a str>) -> Self {
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30 FilesCommand { rev }
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31 }
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32
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33 fn display_files(
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34 &self,
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35 ui: &Ui,
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36 root: &PathBuf,
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37 files: impl IntoIterator<Item = &'a HgPath>,
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38 ) -> Result<(), CommandError> {
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39 let cwd = std::env::current_dir()
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40 .or_else(|e| Err(CommandErrorKind::CurrentDirNotFound(e)))?;
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41 let rooted_cwd = cwd
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42 .strip_prefix(&root)
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43 .expect("cwd was already checked within the repository");
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44 let rooted_cwd = HgPathBuf::from(get_bytes_from_path(rooted_cwd));
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45
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46 let mut stdout = ui.stdout_buffer();
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47
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48 for file in files {
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49 stdout.write_all(relativize_path(file, &rooted_cwd).as_ref())?;
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50 stdout.write_all(b"\n")?;
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51 }
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52 stdout.flush()?;
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53 Ok(())
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54 }
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55 }
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56
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57 impl<'a> Command for FilesCommand<'a> {
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58 fn run(&self, ui: &Ui) -> Result<(), CommandError> {
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59 let root = FindRoot::new().run()?;
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60 if let Some(rev) = self.rev {
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61 let mut operation = ListRevTrackedFiles::new(&root, rev)
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62 .map_err(|e| map_rev_error(rev, e))?;
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63 let files = operation.run().map_err(|e| map_rev_error(rev, e))?;
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64 self.display_files(ui, &root, files)
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65 } else {
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66 let mut operation = ListDirstateTrackedFiles::new(&root)
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67 .map_err(map_dirstate_error)?;
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68 let files = operation.run().map_err(map_dirstate_error)?;
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69 self.display_files(ui, &root, files)
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70 }
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71 }
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72 }
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73
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74 /// Convert `ListRevTrackedFilesErrorKind` to `CommandError`
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75 fn map_rev_error(rev: &str, err: ListRevTrackedFilesError) -> CommandError {
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76 CommandError {
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77 kind: match err.kind {
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78 ListRevTrackedFilesErrorKind::IoError(err) => {
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79 CommandErrorKind::Abort(Some(
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80 utf8_to_local(&format!("abort: {}\n", err)).into(),
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81 ))
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82 }
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83 ListRevTrackedFilesErrorKind::InvalidRevision => {
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84 CommandErrorKind::Abort(Some(
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85 utf8_to_local(&format!(
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86 "abort: invalid revision identifier{}\n",
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87 rev
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88 ))
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89 .into(),
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90 ))
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91 }
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92 ListRevTrackedFilesErrorKind::UnsuportedRevlogVersion(version) => {
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93 CommandErrorKind::Abort(Some(
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94 utf8_to_local(&format!(
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95 "abort: unsupported revlog version {}\n",
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96 version
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97 ))
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98 .into(),
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99 ))
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100 }
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101 ListRevTrackedFilesErrorKind::CorruptedRevlog => {
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102 CommandErrorKind::Abort(Some(
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103 "abort: corrupted revlog\n".into(),
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104 ))
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105 }
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106 ListRevTrackedFilesErrorKind::UnknowRevlogDataFormat(format) => {
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107 CommandErrorKind::Abort(Some(
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108 utf8_to_local(&format!(
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109 "abort: unknow revlog dataformat {:?}\n",
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110 format
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111 ))
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112 .into(),
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113 ))
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114 }
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115 },
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116 }
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117 }
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118
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119 /// Convert `ListDirstateTrackedFilesError` to `CommandError`
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120 fn map_dirstate_error(err: ListDirstateTrackedFilesError) -> CommandError {
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121 CommandError {
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122 kind: match err.kind {
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123 ListDirstateTrackedFilesErrorKind::IoError(err) => {
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124 CommandErrorKind::Abort(Some(
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125 utf8_to_local(&format!("abort: {}\n", err)).into(),
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126 ))
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127 }
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128 ListDirstateTrackedFilesErrorKind::ParseError(_) => {
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129 CommandErrorKind::Abort(Some(
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130 // TODO find a better error message
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131 b"abort: parse error\n".to_vec(),
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132 ))
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133 }
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134 },
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135 }
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136 }