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annotate rust/rhg/src/commands/debugrequirements.rs @ 46484:a6e4e4650bac

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rhg: Parse system and user configuration at program start ? and pass it around up to `Repo::find` Differential Revision: https://phab.mercurial-scm.org/D9962
author Simon Sapin <simon.sapin@octobus.net>
date Thu, 04 Feb 2021 13:17:55 +0100
parents d03b0601e0eb
children 184e46550dc8
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1 use crate::commands::Command;
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2 use crate::error::CommandError;
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3 use crate::ui::Ui;
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4 use hg::config::Config;
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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 struct DebugRequirementsCommand {}
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12
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13 impl DebugRequirementsCommand {
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14 pub fn new() -> Self {
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15 DebugRequirementsCommand {}
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16 }
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17 }
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18
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19 impl Command for DebugRequirementsCommand {
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20 fn run(&self, ui: &Ui, config: &Config) -> Result<(), CommandError> {
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21 let repo = Repo::find(config)?;
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22 let mut output = String::new();
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23 let mut requirements: Vec<_> = repo.requirements().iter().collect();
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24 requirements.sort();
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25 for req in requirements {
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26 output.push_str(req);
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27 output.push('\n');
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28 }
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29 ui.write_stdout(output.as_bytes())?;
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30 Ok(())
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31 }
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32 }