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annotate rust/rhg/src/commands/debugignorerhg.rs @ 48355:6d4daf51283c

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rhg: implement the debugignorerhg subcommand This can be used to inspect the generated pattern, but also to benchmark the time it takes to parse hgignore. Differential Revision: https://phab.mercurial-scm.org/D11722
author Arseniy Alekseyev <aalekseyev@janestreet.com>
date Mon, 29 Nov 2021 14:07:47 +0000
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children 363923bd51cd
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1 use crate::error::CommandError;
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2 use clap::SubCommand;
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3 use hg;
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4 use hg::matchers::get_ignore_matcher;
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5 use hg::StatusError;
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6 use log::warn;
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7
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8 pub const HELP_TEXT: &str = "
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9 Show effective hgignore patterns used by rhg.
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10
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11 This is a pure Rust version of `hg debugignore`.
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12
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13 Some options might be missing, check the list below.
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14 ";
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15
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16 pub fn args() -> clap::App<'static, 'static> {
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17 SubCommand::with_name("debugignorerhg").about(HELP_TEXT)
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18 }
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19
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20 pub fn run(invocation: &crate::CliInvocation) -> Result<(), CommandError> {
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21 let repo = invocation.repo?;
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22
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23 let ignore_file = repo.working_directory_vfs().join(".hgignore"); // TODO hardcoded
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24
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25 let (ignore_matcher, warnings) = get_ignore_matcher(
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26 vec![ignore_file],
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27 &repo.working_directory_path().to_owned(),
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28 &mut |_pattern_bytes| (),
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29 )
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30 .map_err(|e| StatusError::from(e))?;
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31
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32 if !warnings.is_empty() {
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33 warn!("Pattern warnings: {:?}", &warnings);
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34 }
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35
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36 let patterns = ignore_matcher.debug_get_patterns();
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37 invocation.ui.write_stdout(patterns)?;
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38 invocation.ui.write_stdout(b"\n")?;
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39 Ok(())
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40 }