| commit | cd4db8fd7f037c88374a166c11d5b2e8e7425f68 | [log] [tgz] |
|---|---|---|
| author | Alex Ovsienko <[email protected]> | Wed Dec 10 17:45:57 2025 |
| committer | LUCI CQ <[email protected]> | Wed Dec 10 17:45:57 2025 |
| tree | 6ac3facfce82befebabb7b532dee4c7eee86ac9e | |
| parent | ecbf89e1da46853986070273dd13cf067f698b0a [diff] |
Add coverage library to vpython3 so that we can have better insight in how we stand wrt our test coverage in depot_tools. Bug: b/459690822 Change-Id: I17d67e0530755fa9c07bbc4dabf6d81b6a6a6964 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/7244730 Auto-Submit: Alex Ovsienko <[email protected]> Reviewed-by: Yiwei Zhang <[email protected]> Commit-Queue: Alex Ovsienko <[email protected]>
Tools for Chromium development. Requires Python 3.8+.
gsutil: Python 3.9–3.13 required.
The most important tools are:
fetch: A gclient wrapper to checkout a project. Use fetch --help for more details.gclient: A meta-checkout tool. Think repo or git submodules, except that it support OS-specific rules, e.g. do not checkout Windows only dependencies when checking out for Android. Use gclient help for more details and README.gclient.md.git cl: A code review tool to interact with Rietveld or Gerrit. Use git cl help for more details and README.git-cl.md.roll-dep: A gclient dependency management tool to submit a dep roll, updating a dependency to a newer revision.There are a lot of git utilities included.
Also, includes shell script/batch file for tools required to build chromium, e.g.
gn: a meta-build system that generates build files for Ninjaautoninja: a wrapper for siso and ninja.siso: a build tool that aims to significantly speed up Chromium's build.ninja: a small build system with a focus on speed. deprecated by Siso.These shell script/batch file runs python script with python-bin/python3 that find binaries in chromium checkout, and run with proper setup/check. To use these wrappers, you need to initialize/bootstrap depot_tools (using gclient, update_depot_tools or ensure_bootstrap).
See set-up documentation.
depot_tools is also available in
chromium's third_party/depot_tools: propagated by autoroller.
on builder: infra_internal/recipe_bundles/chrome-internal.googlesource.com/chrome/tools/build bundles depot_tools. propagated by build_internal recipe roller
These depot_tools would not be initialized/bootstrapped (i.e. no python-bin/python3 binary available), so the build tool wrapper won't work, unless it is explicitly initialized by ensure_bootstrap. Or, directly call the python script instead of using the shell script/batch file.
depot_tools updates itself automatically when running gclient tool. To disable auto update, set the environment variable DEPOT_TOOLS_UPDATE=0 or run ./update_depot_tools_toggle.py --disable.
To update package manually, run update_depot_tools.bat on Windows, or ./update_depot_tools on Linux or Mac.
Running gclient will install python3 binary.
To contribute change for review:
git new-branch <somename> # Hack git add . git commit -a -m "Fixes goat teleporting" # find reviewers git cl owners git log -- <yourfiles> # Request a review. git cl upload -r [email protected],[email protected] --send-mail # Edit change description if needed. git cl desc # If change is approved, flag it to be committed. git cl set-commit # If change needs more work. git rebase-update ... git cl upload -t "Fixes goat teleporter destination to be Australia"
See also open bugs, open reviews, forum or report problems.
Until 2018, our cpplint.py was a copy of the upstream version at https://github.com/google/styleguide/tree/gh-pages/cpplint. Unfortunately, that repository is not maintained any more. If you want to update cpplint.py in depot_tools, just upload a patch to do so. We will figure out a long-term strategy via issue https://crbug.com/916550.