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annotate rust/rhg/src/commands/debugrequirements.rs @ 46500:184e46550dc8

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rhg: replace command structs with functions The `Command` trait was not used in any generic context, and the struct where nothing more than holders for values parsed from CLI arguments to be available to a `run` method. Differential Revision: https://phab.mercurial-scm.org/D9967
author Simon Sapin <simon.sapin@octobus.net>
date Mon, 08 Feb 2021 20:33:04 +0100
parents a6e4e4650bac
children 1ecaf09d9964
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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a2eda1ff22aa requirements: move loading to hg-core and add parsing
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1 use crate::error::CommandError;
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ead435aa5294 rhg: add a `debugrequirements` subcommand
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2 use crate::ui::Ui;
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3 use clap::ArgMatches;
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a6e4e4650bac rhg: Parse system and user configuration at program start
Simon Sapin <simon.sapin@octobus.net>
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4 use hg::config::Config;
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8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction
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5 use hg::repo::Repo;
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6
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7 pub const HELP_TEXT: &str = "
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8 Print the current repo requirements.
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9 ";
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10
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11 pub fn run(
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12 ui: &Ui,
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13 config: &Config,
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14 _args: &ArgMatches,
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15 ) -> Result<(), CommandError> {
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16 let repo = Repo::find(config)?;
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17 let mut output = String::new();
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18 let mut requirements: Vec<_> = repo.requirements().iter().collect();
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19 requirements.sort();
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20 for req in requirements {
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21 output.push_str(req);
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22 output.push('\n');
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23 }
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24 ui.write_stdout(output.as_bytes())?;
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25 Ok(())
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26 }