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use thiserror;
use std::fs;
use std::io::Write;
use std::path::Path;
#[derive(Debug, thiserror::Error)]
pub enum Error {
#[error("git error")]
Git(#[from] git2::Error),
#[error(transparent)]
Io(#[from] std::io::Error),
}
/// Mirror a repository.
///
/// Works like:
///
/// ```shell
/// git clone --mirror URL
/// ```
pub fn mirror<P: AsRef<Path>>(
url: &str,
path: P,
description: &str,
) -> Result<(), Error> {
let repo = git2::Repository::init_opts(
path,
&git2::RepositoryInitOptions::new()
.bare(true)
.description(description),
)?;
let remote_name = "origin";
let mut remote = repo.remote_with_fetch(
remote_name,
url,
"+refs/*:refs/*",
)?;
let mut config = repo.config()?;
config.set_bool(
&format!("remote.{}.mirror", remote_name),
true,
)?;
let refspecs: [&str; 0] = [];
remote.fetch(&refspecs, None, None)?;
Ok(())
}
/// Update remotes.
///
/// Works like:
///
/// ```shell
/// git remote update
/// ```
pub fn update<P: AsRef<Path>>(
path: P,
) -> Result<(), Error> {
let repo = git2::Repository::open_bare(path)?;
for remote_opt in &repo.remotes()? {
if let Some(remote_name) = remote_opt {
let mut remote = repo.find_remote(remote_name)?;
let mut fetch_options = git2::FetchOptions::new();
fetch_options
.prune(git2::FetchPrune::On)
.download_tags(git2::AutotagOption::All);
let refspecs: [&str; 0] = [];
remote.fetch(&refspecs, Some(&mut fetch_options), None)?;
}
}
Ok(())
}
/// Update the repository's description file.
pub fn update_description<P: AsRef<Path>>(
repo_path: P,
description: &str,
) -> Result<(), Error> {
let description_path = repo_path.as_ref().join("description");
let mut file = fs::OpenOptions::new()
.write(true)
.truncate(true)
.open(description_path)?;
if description.is_empty() {
file.set_len(0)?;
} else {
writeln!(file, "{}", description)?;
}
Ok(())
}
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