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// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Utils for working with version control repositories. Just git right now.
use std::{io, os, run, str};
use std::run::{ProcessOutput, ProcessOptions, Process};
use version::*;
/// For a local git repo
pub fn git_clone(source: &Path, target: &Path, v: &Version) {
assert!(os::path_is_dir(source));
assert!(is_git_dir(source));
if !os::path_exists(target) {
debug!("Running: git clone %s %s", source.to_str(), target.to_str());
let outp = run::process_output("git", [~"clone", source.to_str(), target.to_str()]);
if outp.status != 0 {
io::println(str::from_bytes_owned(outp.output.clone()));
io::println(str::from_bytes_owned(outp.error));
fail!("Couldn't `git clone` %s", source.to_str());
}
else {
match v {
&ExactRevision(ref s) => {
debug!("`Running: git --work-tree=%s --git-dir=%s checkout %s",
*s, target.to_str(), target.push(".git").to_str());
let outp = run::process_output("git",
[fmt!("--work-tree=%s", target.to_str()),
fmt!("--git-dir=%s", target.push(".git").to_str()),
~"checkout", fmt!("%s", *s)]);
if outp.status != 0 {
io::println(str::from_bytes_owned(outp.output.clone()));
io::println(str::from_bytes_owned(outp.error));
fail!("Couldn't `git checkout %s` in %s",
*s, target.to_str());
}
}
_ => ()
}
}
}
else {
// Check that no version was specified. There's no reason to not handle the
// case where a version was requested, but I haven't implemented it.
assert!(*v == NoVersion);
debug!("Running: git --work-tree=%s --git-dir=%s pull --no-edit %s",
target.to_str(), target.push(".git").to_str(), source.to_str());
let outp = run::process_output("git", [fmt!("--work-tree=%s", target.to_str()),
fmt!("--git-dir=%s", target.push(".git").to_str()),
~"pull", ~"--no-edit", source.to_str()]);
assert!(outp.status == 0);
}
}
/// Source can be either a URL or a local file path.
/// true if successful
pub fn git_clone_general(source: &str, target: &Path, v: &Version) -> bool {
let outp = run::process_output("git", [~"clone", source.to_str(), target.to_str()]);
if outp.status != 0 {
debug!(str::from_bytes_owned(outp.output.clone()));
debug!(str::from_bytes_owned(outp.error));
false
}
else {
match v {
&ExactRevision(ref s) | &Tagged(ref s) => {
let outp = process_output_in_cwd("git", [~"checkout", fmt!("%s", *s)],
target);
if outp.status != 0 {
debug!(str::from_bytes_owned(outp.output.clone()));
debug!(str::from_bytes_owned(outp.error));
false
}
else {
true
}
}
_ => true
}
}
}
fn process_output_in_cwd(prog: &str, args: &[~str], cwd: &Path) -> ProcessOutput {
let mut prog = Process::new(prog, args, ProcessOptions{ dir: Some(cwd)
,..ProcessOptions::new()});
prog.finish_with_output()
}
pub fn is_git_dir(p: &Path) -> bool {
os::path_is_dir(&p.push(".git"))
}
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