author | Simon Sapin <simon.sapin@octobus.net> |
Mon, 27 Sep 2021 12:09:15 +0200 | |
changeset 48068 | bf8837e3d7ce |
parent 48026 | 1b2ee68e85f9 |
child 48260 | 269ff8978086 |
permissions | -rw-r--r-- |
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// status.rs |
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// |
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// Copyright 2019 Raphaël Gomès <rgomes@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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//! Rust implementation of dirstate.status (dirstate.py). |
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//! It is currently missing a lot of functionality compared to the Python one |
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//! and will only be triggered in narrow cases. |
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use crate::dirstate_tree::on_disk::DirstateV2ParseError; |
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use crate::{ |
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utils::hg_path::{HgPath, HgPathError}, |
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PatternError, |
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}; |
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use std::{borrow::Cow, fmt}; |
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/// Wrong type of file from a `BadMatch` |
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/// Note: a lot of those don't exist on all platforms. |
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#[derive(Debug, Copy, Clone)] |
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pub enum BadType { |
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CharacterDevice, |
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BlockDevice, |
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FIFO, |
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Socket, |
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Directory, |
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Unknown, |
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} |
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impl fmt::Display for BadType { |
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
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f.write_str(match self { |
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BadType::CharacterDevice => "character device", |
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BadType::BlockDevice => "block device", |
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BadType::FIFO => "fifo", |
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BadType::Socket => "socket", |
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BadType::Directory => "directory", |
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BadType::Unknown => "unknown", |
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}) |
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} |
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} |
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/// Was explicitly matched but cannot be found/accessed |
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#[derive(Debug, Copy, Clone)] |
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pub enum BadMatch { |
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OsError(i32), |
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BadType(BadType), |
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} |
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/// `Box<dyn Trait>` is syntactic sugar for `Box<dyn Trait + 'static>`, so add |
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/// an explicit lifetime here to not fight `'static` bounds "out of nowhere". |
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pub type IgnoreFnType<'a> = |
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Box<dyn for<'r> Fn(&'r HgPath) -> bool + Sync + 'a>; |
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/// We have a good mix of owned (from directory traversal) and borrowed (from |
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/// the dirstate/explicit) paths, this comes up a lot. |
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pub type HgPathCow<'a> = Cow<'a, HgPath>; |
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#[derive(Debug, Copy, Clone)] |
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pub struct StatusOptions { |
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/// Remember the most recent modification timeslot for status, to make |
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/// sure we won't miss future size-preserving file content modifications |
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/// that happen within the same timeslot. |
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pub last_normal_time: i64, |
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/// Whether we are on a filesystem with UNIX-like exec flags |
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pub check_exec: bool, |
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pub list_clean: bool, |
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pub list_unknown: bool, |
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pub list_ignored: bool, |
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/// Whether to collect traversed dirs for applying a callback later. |
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/// Used by `hg purge` for example. |
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pub collect_traversed_dirs: bool, |
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} |
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#[derive(Debug, Default)] |
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pub struct DirstateStatus<'a> { |
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/// Tracked files whose contents have changed since the parent revision |
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pub modified: Vec<HgPathCow<'a>>, |
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/// Newly-tracked files that were not present in the parent |
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pub added: Vec<HgPathCow<'a>>, |
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/// Previously-tracked files that have been (re)moved with an hg command |
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pub removed: Vec<HgPathCow<'a>>, |
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/// (Still) tracked files that are missing, (re)moved with an non-hg |
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/// command |
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pub deleted: Vec<HgPathCow<'a>>, |
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/// Tracked files that are up to date with the parent. |
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/// Only pupulated if `StatusOptions::list_clean` is true. |
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pub clean: Vec<HgPathCow<'a>>, |
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/// Files in the working directory that are ignored with `.hgignore`. |
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/// Only pupulated if `StatusOptions::list_ignored` is true. |
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pub ignored: Vec<HgPathCow<'a>>, |
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/// Files in the working directory that are neither tracked nor ignored. |
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/// Only pupulated if `StatusOptions::list_unknown` is true. |
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pub unknown: Vec<HgPathCow<'a>>, |
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104 |
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/// Was explicitly matched but cannot be found/accessed |
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pub bad: Vec<(HgPathCow<'a>, BadMatch)>, |
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/// Either clean or modified, but we can’t tell from filesystem metadata |
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/// alone. The file contents need to be read and compared with that in |
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/// the parent. |
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pub unsure: Vec<HgPathCow<'a>>, |
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/// Only filled if `collect_traversed_dirs` is `true` |
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pub traversed: Vec<HgPathCow<'a>>, |
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/// Whether `status()` made changed to the `DirstateMap` that should be |
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/// written back to disk |
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pub dirty: bool, |
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} |
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#[derive(Debug, derive_more::From)] |
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pub enum StatusError { |
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/// Generic IO error |
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IO(std::io::Error), |
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/// An invalid path that cannot be represented in Mercurial was found |
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Path(HgPathError), |
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/// An invalid "ignore" pattern was found |
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Pattern(PatternError), |
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/// Corrupted dirstate |
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DirstateV2ParseError(DirstateV2ParseError), |
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131 |
} |
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pub type StatusResult<T> = Result<T, StatusError>; |
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impl fmt::Display for StatusError { |
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
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match self { |
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StatusError::IO(error) => error.fmt(f), |
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StatusError::Path(error) => error.fmt(f), |
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StatusError::Pattern(error) => error.fmt(f), |
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StatusError::DirstateV2ParseError(_) => { |
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f.write_str("dirstate-v2 parse error") |
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} |
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144 |
} |
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} |
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146 |
} |