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annotate rust/rhg/src/commands/config.rs @ 46505:a25033eb43b5

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rhg: add limited support for the `config` sub-command Only with one argument and no flag. This is mostly for testing. Differential Revision: https://phab.mercurial-scm.org/D9972
author Simon Sapin <simon.sapin@octobus.net>
date Mon, 08 Feb 2021 23:41:58 +0100
parents rust/rhg/src/commands/root.rs@d8730ff51d5a
children 80840b651721
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 use crate::error::CommandError;
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2 use crate::ui::Ui;
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3 use clap::Arg;
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4 use clap::ArgMatches;
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5 use format_bytes::format_bytes;
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6 use hg::config::Config;
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7 use hg::errors::HgError;
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8 use hg::repo::Repo;
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9 use hg::utils::SliceExt;
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10 use std::path::Path;
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11
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12 pub const HELP_TEXT: &str = "
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13 With one argument of the form section.name, print just the value of that config item.
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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 clap::SubCommand::with_name("config")
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18 .arg(
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19 Arg::with_name("name")
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20 .help("the section.name to print")
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21 .value_name("NAME")
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22 .required(true)
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23 .takes_value(true),
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24 )
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25 .about(HELP_TEXT)
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26 }
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27
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28 pub fn run(
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29 ui: &Ui,
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30 config: &Config,
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31 repo_path: Option<&Path>,
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32 args: &ArgMatches,
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33 ) -> Result<(), CommandError> {
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34 let opt_repo = Repo::find_optional(config, repo_path)?;
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35 let config = if let Some(repo) = &opt_repo {
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36 repo.config()
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37 } else {
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38 config
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39 };
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40
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41 let (section, name) = args
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42 .value_of("name")
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43 .expect("missing required CLI argument")
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44 .as_bytes()
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45 .split_2(b'.')
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46 .ok_or_else(|| HgError::abort(""))?;
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47
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48 let value = config.get(section, name).unwrap_or(b"");
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49
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50 ui.write_stdout(&format_bytes!(b"{}\n", value))?;
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51 Ok(())
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52 }