##// END OF EJS Templates
rhg: Group values passed to every sub-command into a struct...
rhg: Group values passed to every sub-command into a struct The set of which values this is is evidently not stable yet, so this will make changes easier. Also it is growing, and the function signatures are getting out hand. Differential Revision: https://phab.mercurial-scm.org/D10003

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r47334:80840b65 default
r47334:80840b65 default
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cat.rs
66 lines | 2.1 KiB | application/rls-services+xml | RustLexer
use crate::error::CommandError;
use clap::Arg;
use hg::operations::cat;
use hg::repo::Repo;
use hg::utils::hg_path::HgPathBuf;
use micro_timer::timed;
use std::convert::TryFrom;
pub const HELP_TEXT: &str = "
Output the current or given revision of files
";
pub fn args() -> clap::App<'static, 'static> {
clap::SubCommand::with_name("cat")
.arg(
Arg::with_name("rev")
.help("search the repository as it is in REV")
.short("-r")
.long("--revision")
.value_name("REV")
.takes_value(true),
)
.arg(
clap::Arg::with_name("files")
.required(true)
.multiple(true)
.empty_values(false)
.value_name("FILE")
.help("Activity to start: activity@category"),
)
.about(HELP_TEXT)
}
#[timed]
pub fn run(invocation: &crate::CliInvocation) -> Result<(), CommandError> {
let rev = invocation.subcommand_args.value_of("rev");
let file_args = match invocation.subcommand_args.values_of("files") {
Some(files) => files.collect(),
None => vec![],
};
let repo = Repo::find(invocation.non_repo_config, invocation.repo_path)?;
let cwd = hg::utils::current_dir()?;
let mut files = vec![];
for file in file_args.iter() {
// TODO: actually normalize `..` path segments etc?
let normalized = cwd.join(&file);
let stripped = normalized
.strip_prefix(&repo.working_directory_path())
// TODO: error message for path arguments outside of the repo
.map_err(|_| CommandError::abort(""))?;
let hg_file = HgPathBuf::try_from(stripped.to_path_buf())
.map_err(|e| CommandError::abort(e.to_string()))?;
files.push(hg_file);
}
match rev {
Some(rev) => {
let data = cat(&repo, rev, &files).map_err(|e| (e, rev))?;
invocation.ui.write_stdout(&data)?;
Ok(())
}
None => Err(CommandError::Unimplemented.into()),
}
}