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annotate rust/rhg/src/error.rs @ 46244:fb69b51b4daa

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ci: avoid a global before_script definition This removes the implicit assumption that all jobs are test runs. Differential Revision: https://phab.mercurial-scm.org/D9723
author Dan Villiom Podlaski Christiansen <danchr@gmail.com>
date Mon, 11 Jan 2021 15:16:36 +0100
parents fada33872b5b
children 3e2d539d0d1a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 use crate::exitcode;
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2 use crate::ui::UiError;
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3 use format_bytes::format_bytes;
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4 use hg::operations::{FindRootError, FindRootErrorKind};
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5 use hg::requirements::RequirementsError;
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6 use hg::utils::files::get_bytes_from_path;
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7 use std::convert::From;
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8 use std::path::PathBuf;
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9
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10 /// The kind of command error
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11 #[derive(Debug)]
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12 pub enum CommandErrorKind {
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13 /// The root of the repository cannot be found
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14 RootNotFound(PathBuf),
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15 /// The current directory cannot be found
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16 CurrentDirNotFound(std::io::Error),
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17 /// `.hg/requires`
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18 RequirementsError(RequirementsError),
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19 /// The standard output stream cannot be written to
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20 StdoutError,
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21 /// The standard error stream cannot be written to
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22 StderrError,
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23 /// The command aborted
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24 Abort(Option<Vec<u8>>),
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25 /// A mercurial capability as not been implemented.
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26 Unimplemented,
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27 }
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28
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29 impl CommandErrorKind {
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30 pub fn get_exit_code(&self) -> exitcode::ExitCode {
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31 match self {
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32 CommandErrorKind::RootNotFound(_) => exitcode::ABORT,
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33 CommandErrorKind::CurrentDirNotFound(_) => exitcode::ABORT,
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34 CommandErrorKind::RequirementsError(
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35 RequirementsError::Unsupported { .. },
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36 ) => exitcode::UNIMPLEMENTED_COMMAND,
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37 CommandErrorKind::RequirementsError(_) => exitcode::ABORT,
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38 CommandErrorKind::StdoutError => exitcode::ABORT,
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39 CommandErrorKind::StderrError => exitcode::ABORT,
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40 CommandErrorKind::Abort(_) => exitcode::ABORT,
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41 CommandErrorKind::Unimplemented => exitcode::UNIMPLEMENTED_COMMAND,
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42 }
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43 }
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44
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45 /// Return the message corresponding to the error kind if any
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46 pub fn get_error_message_bytes(&self) -> Option<Vec<u8>> {
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47 match self {
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48 CommandErrorKind::RootNotFound(path) => {
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49 let bytes = get_bytes_from_path(path);
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50 Some(format_bytes!(
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51 b"abort: no repository found in '{}' (.hg not found)!\n",
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52 bytes.as_slice()
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53 ))
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54 }
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55 CommandErrorKind::CurrentDirNotFound(e) => Some(format_bytes!(
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56 b"abort: error getting current working directory: {}\n",
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57 e.to_string().as_bytes(),
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58 )),
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59 CommandErrorKind::RequirementsError(
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60 RequirementsError::Corrupted,
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61 ) => Some(
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62 "abort: .hg/requires is corrupted\n".as_bytes().to_owned(),
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63 ),
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64 CommandErrorKind::Abort(message) => message.to_owned(),
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65 _ => None,
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66 }
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67 }
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68 }
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69
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70 /// The error type for the Command trait
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71 #[derive(Debug)]
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72 pub struct CommandError {
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73 pub kind: CommandErrorKind,
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74 }
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75
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76 impl CommandError {
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77 /// Exist the process with the corresponding exit code.
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78 pub fn exit(&self) {
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79 std::process::exit(self.kind.get_exit_code())
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80 }
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81
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82 /// Return the message corresponding to the command error if any
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83 pub fn get_error_message_bytes(&self) -> Option<Vec<u8>> {
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84 self.kind.get_error_message_bytes()
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85 }
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86 }
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87
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88 impl From<CommandErrorKind> for CommandError {
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89 fn from(kind: CommandErrorKind) -> Self {
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90 CommandError { kind }
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91 }
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92 }
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93
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94 impl From<UiError> for CommandError {
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95 fn from(error: UiError) -> Self {
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96 CommandError {
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97 kind: match error {
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98 UiError::StdoutError(_) => CommandErrorKind::StdoutError,
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99 UiError::StderrError(_) => CommandErrorKind::StderrError,
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100 },
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101 }
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102 }
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103 }
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104
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105 impl From<FindRootError> for CommandError {
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106 fn from(err: FindRootError) -> Self {
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107 match err.kind {
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108 FindRootErrorKind::RootNotFound(path) => CommandError {
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109 kind: CommandErrorKind::RootNotFound(path),
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110 },
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111 FindRootErrorKind::GetCurrentDirError(e) => CommandError {
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112 kind: CommandErrorKind::CurrentDirNotFound(e),
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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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Simon Sapin <simon-commits@exyr.org>
parents: 45923
diff changeset
118 impl From<RequirementsError> for CommandError {
a2eda1ff22aa requirements: move loading to hg-core and add parsing
Simon Sapin <simon-commits@exyr.org>
parents: 45923
diff changeset
119 fn from(err: RequirementsError) -> Self {
a2eda1ff22aa requirements: move loading to hg-core and add parsing
Simon Sapin <simon-commits@exyr.org>
parents: 45923
diff changeset
120 CommandError {
a2eda1ff22aa requirements: move loading to hg-core and add parsing
Simon Sapin <simon-commits@exyr.org>
parents: 45923
diff changeset
121 kind: CommandErrorKind::RequirementsError(err),
a2eda1ff22aa requirements: move loading to hg-core and add parsing
Simon Sapin <simon-commits@exyr.org>
parents: 45923
diff changeset
122 }
a2eda1ff22aa requirements: move loading to hg-core and add parsing
Simon Sapin <simon-commits@exyr.org>
parents: 45923
diff changeset
123 }
a2eda1ff22aa requirements: move loading to hg-core and add parsing
Simon Sapin <simon-commits@exyr.org>
parents: 45923
diff changeset
124 }