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annotate rust/rhg/src/commands/files.rs @ 45449:ed95ccc94333

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rhg: pass `ui` to `Command` `run` Allow implementation of `From<clap::ArgMatches> for Command` Differential Revision: https://phab.mercurial-scm.org/D8954
author Antoine Cezar <antoine.cezar@octobus.net>
date Tue, 04 Aug 2020 16:11:23 +0200
parents 1b3197047f5c
children 72b7d58d6e35
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 use crate::commands::Command;
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2 use crate::error::{CommandError, CommandErrorKind};
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3 use crate::ui::Ui;
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4 use hg::operations::{ListTrackedFiles, ListTrackedFilesErrorKind};
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5 use hg::utils::files::{get_bytes_from_path, relativize_path};
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6 use hg::utils::hg_path::HgPathBuf;
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7
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8 pub const HELP_TEXT: &str = "
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9 List tracked files.
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10
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11 Returns 0 on success.
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12 ";
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13
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14 pub struct FilesCommand {}
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15
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16 impl FilesCommand {
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17 pub fn new() -> Self {
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18 FilesCommand {}
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19 }
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20 }
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21
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22 impl Command for FilesCommand {
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23 fn run(&self, ui: &Ui) -> Result<(), CommandError> {
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24 let operation_builder = ListTrackedFiles::new()?;
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25 let operation = operation_builder.load().map_err(|err| {
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26 CommandErrorKind::Abort(Some(
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27 [b"abort: ", err.to_string().as_bytes(), b"\n"]
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28 .concat()
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29 .to_vec(),
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30 ))
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31 })?;
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32 let files = operation.run().map_err(|err| match err.kind {
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33 ListTrackedFilesErrorKind::ParseError(_) => {
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34 CommandErrorKind::Abort(Some(
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35 // TODO find a better error message
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36 b"abort: parse error\n".to_vec(),
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37 ))
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38 }
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39 })?;
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40
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41 let cwd = std::env::current_dir()
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42 .or_else(|e| Err(CommandErrorKind::CurrentDirNotFound(e)))?;
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43 let rooted_cwd = cwd
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44 .strip_prefix(operation_builder.get_root())
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45 .expect("cwd was already checked within the repository");
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46 let rooted_cwd = HgPathBuf::from(get_bytes_from_path(rooted_cwd));
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47
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48 let mut stdout = ui.stdout_buffer();
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49
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50 for file in files {
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51 stdout.write_all(relativize_path(file, &rooted_cwd).as_ref())?;
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52 stdout.write_all(b"\n")?;
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53 }
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54 stdout.flush()?;
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55
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56 Ok(())
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57 }
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58 }