Mercurial > hg
view rust/rhg/src/error.rs @ 46387:c41ac8985fe4
perf: test the formatting of a command help
Since we are about to addd ':' in command name I want this covered.
Differential Revision: https://phab.mercurial-scm.org/D9871
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 25 Jan 2021 23:13:01 +0100 |
parents | fada33872b5b |
children | 3e2d539d0d1a |
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use crate::exitcode; use crate::ui::UiError; use format_bytes::format_bytes; use hg::operations::{FindRootError, FindRootErrorKind}; use hg::requirements::RequirementsError; use hg::utils::files::get_bytes_from_path; use std::convert::From; use std::path::PathBuf; /// The kind of command error #[derive(Debug)] pub enum CommandErrorKind { /// The root of the repository cannot be found RootNotFound(PathBuf), /// The current directory cannot be found CurrentDirNotFound(std::io::Error), /// `.hg/requires` RequirementsError(RequirementsError), /// The standard output stream cannot be written to StdoutError, /// The standard error stream cannot be written to StderrError, /// The command aborted Abort(Option<Vec<u8>>), /// A mercurial capability as not been implemented. Unimplemented, } impl CommandErrorKind { pub fn get_exit_code(&self) -> exitcode::ExitCode { match self { CommandErrorKind::RootNotFound(_) => exitcode::ABORT, CommandErrorKind::CurrentDirNotFound(_) => exitcode::ABORT, CommandErrorKind::RequirementsError( RequirementsError::Unsupported { .. }, ) => exitcode::UNIMPLEMENTED_COMMAND, CommandErrorKind::RequirementsError(_) => exitcode::ABORT, CommandErrorKind::StdoutError => exitcode::ABORT, CommandErrorKind::StderrError => exitcode::ABORT, CommandErrorKind::Abort(_) => exitcode::ABORT, CommandErrorKind::Unimplemented => exitcode::UNIMPLEMENTED_COMMAND, } } /// Return the message corresponding to the error kind if any pub fn get_error_message_bytes(&self) -> Option<Vec<u8>> { match self { CommandErrorKind::RootNotFound(path) => { let bytes = get_bytes_from_path(path); Some(format_bytes!( b"abort: no repository found in '{}' (.hg not found)!\n", bytes.as_slice() )) } CommandErrorKind::CurrentDirNotFound(e) => Some(format_bytes!( b"abort: error getting current working directory: {}\n", e.to_string().as_bytes(), )), CommandErrorKind::RequirementsError( RequirementsError::Corrupted, ) => Some( "abort: .hg/requires is corrupted\n".as_bytes().to_owned(), ), CommandErrorKind::Abort(message) => message.to_owned(), _ => None, } } } /// The error type for the Command trait #[derive(Debug)] pub struct CommandError { pub kind: CommandErrorKind, } impl CommandError { /// Exist the process with the corresponding exit code. pub fn exit(&self) { std::process::exit(self.kind.get_exit_code()) } /// Return the message corresponding to the command error if any pub fn get_error_message_bytes(&self) -> Option<Vec<u8>> { self.kind.get_error_message_bytes() } } impl From<CommandErrorKind> for CommandError { fn from(kind: CommandErrorKind) -> Self { CommandError { kind } } } impl From<UiError> for CommandError { fn from(error: UiError) -> Self { CommandError { kind: match error { UiError::StdoutError(_) => CommandErrorKind::StdoutError, UiError::StderrError(_) => CommandErrorKind::StderrError, }, } } } impl From<FindRootError> for CommandError { fn from(err: FindRootError) -> Self { match err.kind { FindRootErrorKind::RootNotFound(path) => CommandError { kind: CommandErrorKind::RootNotFound(path), }, FindRootErrorKind::GetCurrentDirError(e) => CommandError { kind: CommandErrorKind::CurrentDirNotFound(e), }, } } } impl From<RequirementsError> for CommandError { fn from(err: RequirementsError) -> Self { CommandError { kind: CommandErrorKind::RequirementsError(err), } } }