Mercurial > hg
view rust/rhg/src/commands/debugdata.rs @ 50427:98fc949bec14
rhg: support `status --print0`
This seems very easy to support, and useful because it makes it possible
to parse the [hg status] output even if the user creates files
with '\n' characters by accident.
author | Arseniy Alekseyev <aalekseyev@janestreet.com> |
---|---|
date | Thu, 06 Apr 2023 11:41:51 +0100 |
parents | c15b415d1bff |
children | 532e74ad3ff6 |
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use crate::error::CommandError; use clap::Arg; use clap::ArgGroup; use hg::operations::{debug_data, DebugDataKind}; pub const HELP_TEXT: &str = " Dump the contents of a data file revision "; pub fn args() -> clap::Command { clap::command!("debugdata") .arg( Arg::new("changelog") .help("open changelog") .short('c') .action(clap::ArgAction::SetTrue), ) .arg( Arg::new("manifest") .help("open manifest") .short('m') .action(clap::ArgAction::SetTrue), ) .group( ArgGroup::new("revlog") .args(&["changelog", "manifest"]) .required(true), ) .arg( Arg::new("rev") .help("revision") .required(true) .value_name("REV"), ) .about(HELP_TEXT) } #[logging_timer::time("trace")] pub fn run(invocation: &crate::CliInvocation) -> Result<(), CommandError> { let args = invocation.subcommand_args; let rev = args .get_one::<String>("rev") .expect("rev should be a required argument"); let kind = match ( args.get_one::<bool>("changelog").unwrap(), args.get_one::<bool>("manifest").unwrap(), ) { (true, false) => DebugDataKind::Changelog, (false, true) => DebugDataKind::Manifest, (true, true) => { unreachable!("Should not happen since options are exclusive") } (false, false) => { unreachable!("Should not happen since options are required") } }; let repo = invocation.repo?; if repo.has_narrow() { return Err(CommandError::unsupported( "support for ellipsis nodes is missing and repo has narrow enabled", )); } let data = debug_data(repo, rev, kind).map_err(|e| (e, rev.as_ref()))?; let mut stdout = invocation.ui.stdout_buffer(); stdout.write_all(&data)?; stdout.flush()?; Ok(()) }