author | Simon Sapin <simon.sapin@octobus.net> |
Mon, 08 Feb 2021 20:33:04 +0100 | |
changeset 46500 | 184e46550dc8 |
parent 46484 | a6e4e4650bac |
child 46501 | 1ecaf09d9964 |
permissions | -rw-r--r-- |
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1 |
extern crate log; |
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2 |
use clap::App; |
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use clap::AppSettings; |
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use clap::Arg; |
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use clap::ArgGroup; |
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use clap::ArgMatches; |
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use clap::SubCommand; |
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use format_bytes::format_bytes; |
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9 |
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mod commands; |
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mod error; |
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mod exitcode; |
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mod ui; |
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use error::CommandError; |
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16 |
fn main() { |
|
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17 |
env_logger::init(); |
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18 |
let app = App::new("rhg") |
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19 |
.setting(AppSettings::AllowInvalidUtf8) |
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20 |
.setting(AppSettings::SubcommandRequired) |
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21 |
.setting(AppSettings::VersionlessSubcommands) |
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22 |
.version("0.0.1") |
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23 |
.subcommand( |
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SubCommand::with_name("root").about(commands::root::HELP_TEXT), |
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25 |
) |
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.subcommand( |
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SubCommand::with_name("files") |
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.arg( |
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Arg::with_name("rev") |
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.help("search the repository as it is in REV") |
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31 |
.short("-r") |
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32 |
.long("--revision") |
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.value_name("REV") |
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.takes_value(true), |
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35 |
) |
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.about(commands::files::HELP_TEXT), |
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37 |
) |
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38 |
.subcommand( |
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SubCommand::with_name("cat") |
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40 |
.arg( |
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41 |
Arg::with_name("rev") |
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.help("search the repository as it is in REV") |
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43 |
.short("-r") |
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.long("--revision") |
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.value_name("REV") |
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.takes_value(true), |
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47 |
) |
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.arg( |
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clap::Arg::with_name("files") |
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.required(true) |
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.multiple(true) |
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.empty_values(false) |
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.value_name("FILE") |
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.help("Activity to start: activity@category"), |
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55 |
) |
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.about(commands::cat::HELP_TEXT), |
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57 |
) |
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.subcommand( |
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SubCommand::with_name("debugdata") |
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.about(commands::debugdata::HELP_TEXT) |
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61 |
.arg( |
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62 |
Arg::with_name("changelog") |
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63 |
.help("open changelog") |
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64 |
.short("-c") |
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65 |
.long("--changelog"), |
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66 |
) |
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67 |
.arg( |
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68 |
Arg::with_name("manifest") |
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69 |
.help("open manifest") |
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70 |
.short("-m") |
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71 |
.long("--manifest"), |
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72 |
) |
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73 |
.group( |
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74 |
ArgGroup::with_name("") |
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75 |
.args(&["changelog", "manifest"]) |
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76 |
.required(true), |
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77 |
) |
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78 |
.arg( |
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79 |
Arg::with_name("rev") |
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80 |
.help("revision") |
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81 |
.required(true) |
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82 |
.value_name("REV"), |
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83 |
), |
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84 |
) |
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85 |
.subcommand( |
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86 |
SubCommand::with_name("debugrequirements") |
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87 |
.about(commands::debugrequirements::HELP_TEXT), |
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88 |
); |
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89 |
|
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90 |
let matches = app.clone().get_matches_safe().unwrap_or_else(|err| { |
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let _ = ui::Ui::new().writeln_stderr_str(&err.message); |
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92 |
std::process::exit(exitcode::UNIMPLEMENTED) |
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93 |
}); |
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94 |
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let ui = ui::Ui::new(); |
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96 |
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97 |
let command_result = match_subcommand(matches, &ui); |
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98 |
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99 |
let exit_code = match command_result { |
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100 |
Ok(_) => exitcode::OK, |
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101 |
|
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102 |
// Exit with a specific code and no error message to let a potential |
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103 |
// wrapper script fallback to Python-based Mercurial. |
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104 |
Err(CommandError::Unimplemented) => exitcode::UNIMPLEMENTED, |
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105 |
|
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106 |
Err(CommandError::Abort { message }) => { |
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107 |
if !message.is_empty() { |
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108 |
// Ignore errors when writing to stderr, we’re already exiting |
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109 |
// with failure code so there’s not much more we can do. |
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110 |
let _ = |
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111 |
ui.write_stderr(&format_bytes!(b"abort: {}\n", message)); |
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112 |
} |
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113 |
exitcode::ABORT |
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114 |
} |
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115 |
}; |
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116 |
std::process::exit(exit_code) |
44981 | 117 |
} |
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118 |
|
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119 |
fn match_subcommand( |
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120 |
matches: ArgMatches, |
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121 |
ui: &ui::Ui, |
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122 |
) -> Result<(), CommandError> { |
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123 |
let config = hg::config::Config::load()?; |
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124 |
|
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125 |
match matches.subcommand() { |
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126 |
("root", Some(matches)) => commands::root::run(ui, &config, matches), |
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127 |
("files", Some(matches)) => commands::files::run(ui, &config, matches), |
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128 |
("cat", Some(matches)) => commands::cat::run(ui, &config, matches), |
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129 |
("debugdata", Some(matches)) => { |
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130 |
commands::debugdata::run(ui, &config, matches) |
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131 |
} |
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132 |
("debugrequirements", Some(matches)) => { |
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133 |
commands::debugrequirements::run(ui, &config, matches) |
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134 |
} |
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135 |
_ => unreachable!(), // Because of AppSettings::SubcommandRequired, |
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136 |
} |
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137 |
} |