exa/src/feature/git.rs
Ben S dc6599b1b3 Turn File into simply a data source
And move all the rendering, ansi_term, colourful stuff into the output modules, which is the only place they should be used!
2015-05-11 23:28:01 +01:00

76 lines
3.2 KiB
Rust

use std::path::{Path, PathBuf};
use git2;
use file;
/// Container of Git statuses for all the files in this folder's Git repository.
pub struct Git {
statuses: Vec<(PathBuf, git2::Status)>,
}
impl Git {
/// Discover a Git repository on or above this directory, scanning it for
/// the files' statuses if one is found.
pub fn scan(path: &Path) -> Result<Git, git2::Error> {
let repo = try!(git2::Repository::discover(path));
let workdir = match repo.workdir() {
Some(w) => w,
None => return Ok(Git { statuses: vec![] }), // bare repo
};
let statuses = try!(repo.statuses(None)).iter()
.map(|e| (workdir.join(Path::new(e.path().unwrap())), e.status()))
.collect();
Ok(Git { statuses: statuses })
}
/// Get the status for the file at the given path, if present.
pub fn status(&self, path: &Path) -> file::Git {
let status = self.statuses.iter()
.find(|p| p.0.as_path() == path);
match status {
Some(&(_, s)) => file::Git { staged: index_status(s), unstaged: working_tree_status(s) },
None => file::Git { staged: file::GitStatus::NotModified, unstaged: file::GitStatus::NotModified }
}
}
/// Get the combined status for all the files whose paths begin with the
/// path that gets passed in. This is used for getting the status of
/// directories, which don't really have an 'official' status.
pub fn dir_status(&self, dir: &Path) -> file::Git {
let s = self.statuses.iter()
.filter(|p| p.0.starts_with(dir))
.fold(git2::Status::empty(), |a, b| a | b.1);
file::Git { staged: index_status(s), unstaged: working_tree_status(s) }
}
}
/// The character to display if the file has been modified, but not staged.
fn working_tree_status(status: git2::Status) -> file::GitStatus {
match status {
s if s.contains(git2::STATUS_WT_NEW) => file::GitStatus::New,
s if s.contains(git2::STATUS_WT_MODIFIED) => file::GitStatus::Modified,
s if s.contains(git2::STATUS_WT_DELETED) => file::GitStatus::Deleted,
s if s.contains(git2::STATUS_WT_RENAMED) => file::GitStatus::Renamed,
s if s.contains(git2::STATUS_WT_TYPECHANGE) => file::GitStatus::TypeChange,
_ => file::GitStatus::NotModified,
}
}
/// The character to display if the file has been modified, and the change
/// has been staged.
fn index_status(status: git2::Status) -> file::GitStatus {
match status {
s if s.contains(git2::STATUS_INDEX_NEW) => file::GitStatus::New,
s if s.contains(git2::STATUS_INDEX_MODIFIED) => file::GitStatus::Modified,
s if s.contains(git2::STATUS_INDEX_DELETED) => file::GitStatus::Deleted,
s if s.contains(git2::STATUS_INDEX_RENAMED) => file::GitStatus::Renamed,
s if s.contains(git2::STATUS_INDEX_TYPECHANGE) => file::GitStatus::TypeChange,
_ => file::GitStatus::NotModified,
}
}