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annotate rust/rhg/src/commands/files.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 1dcd9c9975ed
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::operations::list_rev_tracked_files;
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6 use hg::operations::Dirstate;
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7 use hg::repo::Repo;
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8 use hg::utils::files::{get_bytes_from_path, relativize_path};
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9 use hg::utils::hg_path::{HgPath, HgPathBuf};
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10
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11 pub const HELP_TEXT: &str = "
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12 List tracked files.
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13
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14 Returns 0 on success.
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15 ";
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16
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17 pub struct FilesCommand<'a> {
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18 rev: Option<&'a str>,
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19 }
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20
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21 impl<'a> FilesCommand<'a> {
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22 pub fn new(rev: Option<&'a str>) -> Self {
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23 FilesCommand { rev }
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24 }
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25
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26 fn display_files(
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27 &self,
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28 ui: &Ui,
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29 repo: &Repo,
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30 files: impl IntoIterator<Item = &'a HgPath>,
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31 ) -> Result<(), CommandError> {
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32 let cwd = hg::utils::current_dir()?;
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33 let rooted_cwd = cwd
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34 .strip_prefix(repo.working_directory_path())
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35 .expect("cwd was already checked within the repository");
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36 let rooted_cwd = HgPathBuf::from(get_bytes_from_path(rooted_cwd));
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37
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38 let mut stdout = ui.stdout_buffer();
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39
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40 for file in files {
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41 stdout.write_all(relativize_path(file, &rooted_cwd).as_ref())?;
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42 stdout.write_all(b"\n")?;
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43 }
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44 stdout.flush()?;
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45 Ok(())
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46 }
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47 }
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48
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49 impl<'a> Command for FilesCommand<'a> {
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50 fn run(&self, ui: &Ui, config: &Config) -> Result<(), CommandError> {
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51 let repo = Repo::find(config)?;
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52 if let Some(rev) = self.rev {
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53 let files =
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54 list_rev_tracked_files(&repo, rev).map_err(|e| (e, rev))?;
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55 self.display_files(ui, &repo, files.iter())
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56 } else {
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57 let distate = Dirstate::new(&repo)?;
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58 let files = distate.tracked_files()?;
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59 self.display_files(ui, &repo, files)
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60 }
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61 }
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62 }