Greg Edelston 12ad396f67 info: Parallelize repo info to improve performance
For a large checkout like chromiumos or android, `repo info` takes a
really long time! On my machine it took ~6 minutes. On a randomly
selected ChromiumOS cq-orchestrator build it took 4.1 minutes:
https://ci.chromium.org/b/8682060180498819729. This adds up to a lot of
wasted runtime for both humans and bots.

The problem is that `repo info` was single-threaded, which causes poor
performance when the checkout has 1000+ projects. We already have a
pattern for parallelization; let's use it.

BUG=None
TEST=Manually run, ensure no diff

Change-Id: I6b82b9495eb2a0e602a142dd3a16f09217871e1b
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/581921
Tested-by: Greg Edelston <gredelston@google.com>
Commit-Queue: Greg Edelston <gredelston@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2026-05-12 09:59:07 -07:00
2026-01-06 11:32:42 -08:00
2025-04-23 08:33:37 -07:00
2021-11-15 01:39:36 +00:00
2020-02-13 04:49:55 +00:00
2026-03-18 12:01:37 -07:00
2026-05-08 07:46:00 -07:00
2024-12-03 22:27:56 +00:00
2023-08-22 18:32:22 +00:00
2025-08-21 11:04:41 -07:00
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2019-12-02 04:23:31 +00:00
2025-04-01 20:59:10 -07:00
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2025-08-21 11:04:41 -07:00

repo

Repo is a tool built on top of Git. Repo helps manage many Git repositories, does the uploads to revision control systems, and automates parts of the development workflow. Repo is not meant to replace Git, only to make it easier to work with Git. The repo command is an executable Python script that you can put anywhere in your path.

Contact

Please use the repo-discuss mailing list or issue tracker for questions.

You can file a new bug report under the "repo" component.

Please do not e-mail individual developers for support. They do not have the bandwidth for it, and often times questions have already been asked on repo-discuss or bugs posted to the issue tracker. So please search those sites first.

Install

Many distros include repo, so you might be able to install from there.

# Debian/Ubuntu.
$ sudo apt-get install repo

# Gentoo.
$ sudo emerge dev-vcs/repo

You can install it manually as well as it's a single script.

$ mkdir -p ~/.bin
$ PATH="${HOME}/.bin:${PATH}"
$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/.bin/repo
$ chmod a+rx ~/.bin/repo

Shell Completion

Repo includes completion scripts for Bash and Zsh.

Bash

To enable completion in Bash, source completion.bash in your ~/.bashrc:

source /path/to/git-repo/completion.bash

Zsh

To enable completion in Zsh, you can either:

  1. Copy or symlink completion.zsh to a file named _repo in a directory in your $fpath:

    mkdir -p ~/.zsh/completion
    # You can copy the file:
    cp /path/to/git-repo/completion.zsh ~/.zsh/completion/_repo
    # Or symlink it:
    ln -s /path/to/git-repo/completion.zsh ~/.zsh/completion/_repo
    

    Then add that directory to your fpath in ~/.zshrc before compinit:

    fpath=(~/.zsh/completion $fpath)
    autoload -Uz compinit
    compinit
    
  2. Or source the file directly and call compdef in your ~/.zshrc:

    source /path/to/git-repo/completion.zsh
    compdef _repo repo
    
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