Mercurial > hg
annotate rust/rhg/src/main.rs @ 45537:2f8227a12592
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> |
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date | Wed, 09 Sep 2020 14:53:15 +0200 |
parents | b1cea0dc9db0 |
children | 33ded2d3f4fc |
rev | line source |
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1 extern crate log; |
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2 use clap::App; |
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3 use clap::AppSettings; |
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4 use clap::Arg; |
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5 use clap::ArgGroup; |
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6 use clap::ArgMatches; |
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7 use clap::SubCommand; |
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8 use hg::operations::DebugDataKind; |
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9 use std::convert::TryFrom; |
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10 |
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11 mod commands; |
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12 mod error; |
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14 mod ui; |
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15 use commands::Command; |
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16 use error::CommandError; |
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18 fn main() { | |
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19 env_logger::init(); |
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20 let app = App::new("rhg") |
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21 .setting(AppSettings::AllowInvalidUtf8) |
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22 .setting(AppSettings::SubcommandRequired) |
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23 .setting(AppSettings::VersionlessSubcommands) |
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24 .version("0.0.1") |
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25 .subcommand( |
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26 SubCommand::with_name("root").about(commands::root::HELP_TEXT), |
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27 ) |
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28 .subcommand( |
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29 SubCommand::with_name("files") |
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30 .arg( |
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31 Arg::with_name("rev") |
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32 .help("search the repository as it is in REV") |
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33 .short("-r") |
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34 .long("--revision") |
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35 .value_name("REV") |
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36 .takes_value(true), |
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37 ) |
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38 .about(commands::files::HELP_TEXT), |
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39 ) |
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40 .subcommand( |
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41 SubCommand::with_name("debugdata") |
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42 .about(commands::debugdata::HELP_TEXT) |
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43 .arg( |
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44 Arg::with_name("changelog") |
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45 .help("open changelog") |
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46 .short("-c") |
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47 .long("--changelog"), |
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48 ) |
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49 .arg( |
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50 Arg::with_name("manifest") |
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51 .help("open manifest") |
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52 .short("-m") |
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53 .long("--manifest"), |
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54 ) |
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55 .group( |
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56 ArgGroup::with_name("") |
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57 .args(&["changelog", "manifest"]) |
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58 .required(true), |
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59 ) |
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60 .arg( |
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61 Arg::with_name("rev") |
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62 .help("revision") |
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63 .required(true) |
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64 .value_name("REV"), |
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65 ), |
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66 ); |
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67 |
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68 let matches = app.clone().get_matches_safe().unwrap_or_else(|err| { |
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69 let _ = ui::Ui::new().writeln_stderr_str(&err.message); |
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70 std::process::exit(exitcode::UNIMPLEMENTED_COMMAND) |
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71 }); |
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72 |
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73 let ui = ui::Ui::new(); |
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74 |
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75 let command_result = match_subcommand(matches, &ui); |
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76 |
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77 match command_result { |
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78 Ok(_) => std::process::exit(exitcode::OK), |
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79 Err(e) => { |
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80 let message = e.get_error_message_bytes(); |
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81 if let Some(msg) = message { |
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82 match ui.write_stderr(&msg) { |
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83 Ok(_) => (), |
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84 Err(_) => std::process::exit(exitcode::ABORT), |
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85 }; |
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86 }; |
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87 e.exit() |
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88 } |
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89 } |
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91 |
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92 fn match_subcommand( |
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93 matches: ArgMatches, |
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94 ui: &ui::Ui, |
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95 ) -> Result<(), CommandError> { |
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96 match matches.subcommand() { |
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97 ("root", _) => commands::root::RootCommand::new().run(&ui), |
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98 ("files", Some(matches)) => { |
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99 commands::files::FilesCommand::try_from(matches)?.run(&ui) |
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100 } |
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101 ("debugdata", Some(matches)) => { |
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102 commands::debugdata::DebugDataCommand::try_from(matches)?.run(&ui) |
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103 } |
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104 _ => unreachable!(), // Because of AppSettings::SubcommandRequired, |
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105 } |
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106 } |
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107 |
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108 impl<'a> TryFrom<&'a ArgMatches<'_>> for commands::files::FilesCommand<'a> { |
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109 type Error = CommandError; |
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110 |
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111 fn try_from(args: &'a ArgMatches) -> Result<Self, Self::Error> { |
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112 let rev = args.value_of("rev"); |
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113 Ok(commands::files::FilesCommand::new(rev)) |
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114 } |
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115 } |
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116 |
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117 impl<'a> TryFrom<&'a ArgMatches<'_>> |
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118 for commands::debugdata::DebugDataCommand<'a> |
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119 { |
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120 type Error = CommandError; |
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121 |
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122 fn try_from(args: &'a ArgMatches) -> Result<Self, Self::Error> { |
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123 let rev = args |
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124 .value_of("rev") |
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125 .expect("rev should be a required argument"); |
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126 let kind = match ( |
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127 args.is_present("changelog"), |
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128 args.is_present("manifest"), |
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129 ) { |
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130 (true, false) => DebugDataKind::Changelog, |
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131 (false, true) => DebugDataKind::Manifest, |
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132 (true, true) => { |
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133 unreachable!("Should not happen since options are exclusive") |
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134 } |
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135 (false, false) => { |
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136 unreachable!("Should not happen since options are required") |
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137 } |
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138 }; |
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139 Ok(commands::debugdata::DebugDataCommand::new(rev, kind)) |
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140 } |
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141 } |