rust/hg-core/src/dirstate.rs
changeset 42749 7ceded4419a3
parent 42748 7cae6bc29ff9
child 42753 fce6dc93a510
equal deleted inserted replaced
42748:7cae6bc29ff9 42749:7ceded4419a3
     3 // Copyright 2019 Raphaël Gomès <rgomes@octobus.net>
     3 // Copyright 2019 Raphaël Gomès <rgomes@octobus.net>
     4 //
     4 //
     5 // This software may be used and distributed according to the terms of the
     5 // This software may be used and distributed according to the terms of the
     6 // GNU General Public License version 2 or any later version.
     6 // GNU General Public License version 2 or any later version.
     7 
     7 
       
     8 use crate::DirstateParseError;
     8 use std::collections::HashMap;
     9 use std::collections::HashMap;
       
    10 use std::convert::TryFrom;
     9 
    11 
    10 pub mod dirs_multiset;
    12 pub mod dirs_multiset;
    11 pub mod parsers;
    13 pub mod parsers;
    12 
    14 
    13 #[derive(Debug, PartialEq, Clone)]
    15 #[derive(Debug, PartialEq, Clone)]
    19 /// The C implementation uses all signed types. This will be an issue
    21 /// The C implementation uses all signed types. This will be an issue
    20 /// either when 4GB+ source files are commonplace or in 2038, whichever
    22 /// either when 4GB+ source files are commonplace or in 2038, whichever
    21 /// comes first.
    23 /// comes first.
    22 #[derive(Debug, PartialEq, Copy, Clone)]
    24 #[derive(Debug, PartialEq, Copy, Clone)]
    23 pub struct DirstateEntry {
    25 pub struct DirstateEntry {
    24     pub state: i8,
    26     pub state: EntryState,
    25     pub mode: i32,
    27     pub mode: i32,
    26     pub mtime: i32,
    28     pub mtime: i32,
    27     pub size: i32,
    29     pub size: i32,
    28 }
    30 }
    29 
    31 
    34 /// iterable (manifest)
    36 /// iterable (manifest)
    35 pub enum DirsIterable<'a> {
    37 pub enum DirsIterable<'a> {
    36     Dirstate(&'a HashMap<Vec<u8>, DirstateEntry>),
    38     Dirstate(&'a HashMap<Vec<u8>, DirstateEntry>),
    37     Manifest(&'a Vec<Vec<u8>>),
    39     Manifest(&'a Vec<Vec<u8>>),
    38 }
    40 }
       
    41 
       
    42 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
       
    43 pub enum EntryState {
       
    44     Normal,
       
    45     Added,
       
    46     Removed,
       
    47     Merged,
       
    48     Unknown,
       
    49 }
       
    50 
       
    51 impl TryFrom<u8> for EntryState {
       
    52     type Error = DirstateParseError;
       
    53 
       
    54     fn try_from(value: u8) -> Result<Self, Self::Error> {
       
    55         match value {
       
    56             b'n' => Ok(EntryState::Normal),
       
    57             b'a' => Ok(EntryState::Added),
       
    58             b'r' => Ok(EntryState::Removed),
       
    59             b'm' => Ok(EntryState::Merged),
       
    60             b'?' => Ok(EntryState::Unknown),
       
    61             _ => Err(DirstateParseError::CorruptedEntry(format!(
       
    62                 "Incorrect entry state {}",
       
    63                 value
       
    64             ))),
       
    65         }
       
    66     }
       
    67 }
       
    68 
       
    69 impl Into<u8> for EntryState {
       
    70     fn into(self) -> u8 {
       
    71         match self {
       
    72             EntryState::Normal => b'n',
       
    73             EntryState::Added => b'a',
       
    74             EntryState::Removed => b'r',
       
    75             EntryState::Merged => b'm',
       
    76             EntryState::Unknown => b'?',
       
    77         }
       
    78     }
       
    79 }