author | Simon Sapin <simon.sapin@octobus.net> |
Tue, 26 Jan 2021 19:07:24 +0100 | |
changeset 46434 | 3e2d539d0d1a |
parent 46433 | 4b381dbbf8b7 |
child 46435 | 2e2033081274 |
permissions | -rw-r--r-- |
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// list_tracked_files.rs |
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// |
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// Copyright 2020 Antoine Cezar <antoine.cezar@octobus.net> |
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// |
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// This software may be used and distributed according to the terms of the |
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// GNU General Public License version 2 or any later version. |
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use crate::dirstate::parsers::parse_dirstate; |
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use crate::repo::Repo; |
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use crate::revlog::changelog::Changelog; |
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use crate::revlog::manifest::{Manifest, ManifestEntry}; |
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use crate::revlog::node::Node; |
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use crate::revlog::revlog::RevlogError; |
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use crate::utils::hg_path::HgPath; |
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use crate::{DirstateParseError, EntryState}; |
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use rayon::prelude::*; |
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use std::convert::From; |
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/// Error type for `Dirstate` methods |
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#[derive(Debug)] |
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pub enum ListDirstateTrackedFilesError { |
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/// Error when reading the `dirstate` file |
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IoError(std::io::Error), |
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/// Error when parsing the `dirstate` file |
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ParseError(DirstateParseError), |
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} |
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|
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impl From<std::io::Error> for ListDirstateTrackedFilesError { |
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fn from(err: std::io::Error) -> Self { |
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ListDirstateTrackedFilesError::IoError(err) |
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} |
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} |
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/// List files under Mercurial control in the working directory |
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/// by reading the dirstate |
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pub struct Dirstate { |
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/// The `dirstate` content. |
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content: Vec<u8>, |
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} |
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impl Dirstate { |
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pub fn new(repo: &Repo) -> Result<Self, ListDirstateTrackedFilesError> { |
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let content = repo.hg_vfs().read("dirstate")?; |
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Ok(Self { content }) |
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} |
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pub fn tracked_files( |
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&self, |
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) -> Result<Vec<&HgPath>, ListDirstateTrackedFilesError> { |
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let (_, entries, _) = parse_dirstate(&self.content) |
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.map_err(ListDirstateTrackedFilesError::ParseError)?; |
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let mut files: Vec<&HgPath> = entries |
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.into_iter() |
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.filter_map(|(path, entry)| match entry.state { |
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EntryState::Removed => None, |
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_ => Some(path), |
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}) |
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.collect(); |
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files.par_sort_unstable(); |
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Ok(files) |
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} |
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} |
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/// Error type `list_rev_tracked_files` |
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#[derive(Debug)] |
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pub enum ListRevTrackedFilesError { |
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/// Error when reading a `revlog` file. |
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IoError(std::io::Error), |
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/// The revision has not been found. |
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InvalidRevision, |
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/// Found more than one revision whose ID match the requested prefix |
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AmbiguousPrefix, |
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/// A `revlog` file is corrupted. |
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CorruptedRevlog, |
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/// The `revlog` format version is not supported. |
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UnsuportedRevlogVersion(u16), |
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/// The `revlog` data format is not supported. |
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UnknowRevlogDataFormat(u8), |
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} |
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impl From<RevlogError> for ListRevTrackedFilesError { |
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fn from(err: RevlogError) -> Self { |
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match err { |
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RevlogError::IoError(err) => { |
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ListRevTrackedFilesError::IoError(err) |
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} |
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RevlogError::UnsuportedVersion(version) => { |
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ListRevTrackedFilesError::UnsuportedRevlogVersion(version) |
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} |
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RevlogError::InvalidRevision => { |
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ListRevTrackedFilesError::InvalidRevision |
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} |
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RevlogError::AmbiguousPrefix => { |
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ListRevTrackedFilesError::AmbiguousPrefix |
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} |
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RevlogError::Corrupted => { |
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ListRevTrackedFilesError::CorruptedRevlog |
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} |
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RevlogError::UnknowDataFormat(format) => { |
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ListRevTrackedFilesError::UnknowRevlogDataFormat(format) |
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101 |
} |
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102 |
} |
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103 |
} |
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104 |
} |
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105 |
|
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106 |
/// List files under Mercurial control at a given revision. |
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107 |
pub fn list_rev_tracked_files( |
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108 |
repo: &Repo, |
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109 |
revset: &str, |
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110 |
) -> Result<FilesForRev, ListRevTrackedFilesError> { |
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let rev = crate::revset::resolve_single(revset, repo)?; |
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112 |
let changelog = Changelog::open(repo)?; |
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113 |
let manifest = Manifest::open(repo)?; |
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114 |
let changelog_entry = changelog.get_rev(rev)?; |
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let manifest_node = Node::from_hex(&changelog_entry.manifest_node()?) |
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.or(Err(ListRevTrackedFilesError::CorruptedRevlog))?; |
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let manifest_entry = manifest.get_node(manifest_node.into())?; |
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118 |
Ok(FilesForRev(manifest_entry)) |
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119 |
} |
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120 |
|
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121 |
pub struct FilesForRev(ManifestEntry); |
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122 |
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123 |
impl FilesForRev { |
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124 |
pub fn iter(&self) -> impl Iterator<Item = &HgPath> { |
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self.0.files() |
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126 |
} |
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127 |
} |