annotate rust/rhg/src/commands/files.rs @ 48397:c12ed33558cb

rhg: Add support for `rhg status -n` The `RHG_STATUS=1` bit added here can be removed when `unset RHG_STATUS` near the top of the file is removed. Differential Revision: https://phab.mercurial-scm.org/D11815
author Simon Sapin <simon.sapin@octobus.net>
date Fri, 26 Nov 2021 15:59:09 +0100
parents 10c32e1b892a
children 005ae1a343f8
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1 use crate::error::CommandError;
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2 use crate::ui::Ui;
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3 use crate::ui::UiError;
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4 use crate::utils::path_utils::relativize_paths;
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5 use clap::Arg;
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6 use hg::errors::HgError;
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7 use hg::operations::list_rev_tracked_files;
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8 use hg::operations::Dirstate;
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9 use hg::repo::Repo;
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10 use hg::utils::hg_path::HgPath;
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11 use std::borrow::Cow;
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13 pub const HELP_TEXT: &str = "
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14 List tracked files.
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15
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16 Returns 0 on success.
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17 ";
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18
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19 pub fn args() -> clap::App<'static, 'static> {
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20 clap::SubCommand::with_name("files")
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21 .arg(
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22 Arg::with_name("rev")
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23 .help("search the repository as it is in REV")
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24 .short("-r")
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25 .long("--revision")
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26 .value_name("REV")
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27 .takes_value(true),
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28 )
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29 .about(HELP_TEXT)
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30 }
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31
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32 pub fn run(invocation: &crate::CliInvocation) -> Result<(), CommandError> {
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33 let relative = invocation.config.get(b"ui", b"relative-paths");
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34 if relative.is_some() {
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35 return Err(CommandError::unsupported(
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36 "non-default ui.relative-paths",
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37 ));
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38 }
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39
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40 let rev = invocation.subcommand_args.value_of("rev");
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41
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42 let repo = invocation.repo?;
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43 if let Some(rev) = rev {
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44 let files = list_rev_tracked_files(repo, rev).map_err(|e| (e, rev))?;
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45 display_files(invocation.ui, repo, files.iter())
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46 } else {
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47 let distate = Dirstate::new(repo)?;
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48 let files = distate.tracked_files()?;
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49 display_files(invocation.ui, repo, files.into_iter().map(Ok))
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50 }
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51 }
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52
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53 fn display_files<'a>(
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54 ui: &Ui,
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55 repo: &Repo,
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56 files: impl IntoIterator<Item = Result<&'a HgPath, HgError>>,
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57 ) -> Result<(), CommandError> {
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58 let mut stdout = ui.stdout_buffer();
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59 let mut any = false;
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60
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61 relativize_paths(repo, files, |path: Cow<[u8]>| -> Result<(), UiError> {
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62 any = true;
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63 stdout.write_all(path.as_ref())?;
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64 stdout.write_all(b"\n")
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65 })?;
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66 stdout.flush()?;
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67 if any {
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68 Ok(())
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69 } else {
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70 Err(CommandError::Unsuccessful)
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71 }
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72 }