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annotate rust/hg-core/src/operations/dirstate_status.rs @ 47350:04d1f17f49e7

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dirstate-v2: Write .hg/dirstate back to disk on directory cache changes Differential Revision: https://phab.mercurial-scm.org/D10827
author Simon Sapin <simon.sapin@octobus.net>
date Mon, 31 May 2021 18:35:44 +0200
parents 73ddcedeaadf
children
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1 // dirstate_status.rs
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2 //
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3 // Copyright 2019, Raphaël Gomès <rgomes@octobus.net>
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4 //
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5 // This software may be used and distributed according to the terms of the
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6 // GNU General Public License version 2 or any later version.
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7
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8 use crate::dirstate::status::{build_response, Dispatch, Status};
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9 use crate::matchers::Matcher;
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10 use crate::{DirstateStatus, StatusError};
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11
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12 impl<'a, M: ?Sized + Matcher + Sync> Status<'a, M> {
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13 pub(crate) fn run(&self) -> Result<DirstateStatus<'a>, StatusError> {
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14 let (traversed_sender, traversed_receiver) =
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15 crossbeam_channel::unbounded();
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16
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17 // Step 1: check the files explicitly mentioned by the user
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18 let (work, mut results) = self.walk_explicit(traversed_sender.clone());
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19
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20 if !work.is_empty() {
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21 // Hashmaps are quite a bit slower to build than vecs, so only
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22 // build it if needed.
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23 let old_results = results.iter().cloned().collect();
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24
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25 // Step 2: recursively check the working directory for changes if
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26 // needed
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27 for (dir, dispatch) in work {
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28 match dispatch {
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29 Dispatch::Directory { was_file } => {
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30 if was_file {
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31 results.push((dir.to_owned(), Dispatch::Removed));
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32 }
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33 if self.options.list_ignored
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34 || self.options.list_unknown
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35 && !self.dir_ignore(&dir)
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36 {
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37 self.traverse(
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38 &dir,
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39 &old_results,
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40 &mut results,
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41 traversed_sender.clone(),
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42 );
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43 }
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44 }
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45 _ => {
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46 unreachable!("There can only be directories in `work`")
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47 }
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48 }
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49 }
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50 }
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51
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52 if !self.matcher.is_exact() {
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53 if self.options.list_unknown {
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54 self.handle_unknowns(&mut results);
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55 } else {
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56 // TODO this is incorrect, see issue6335
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57 // This requires a fix in both Python and Rust that can happen
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58 // with other pending changes to `status`.
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59 self.extend_from_dmap(&mut results);
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60 }
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61 }
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62
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63 drop(traversed_sender);
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64 let traversed = traversed_receiver
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65 .into_iter()
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66 .map(std::borrow::Cow::Owned)
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67 .collect();
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68
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69 Ok(build_response(results, traversed))
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70 }
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71 }