The post_build_ninja_summary.py script, which autoninja automatically runs if NINJA_SUMMARIZE_BUILD=1 is set, summarizes build time by file extension. This is a good default summary but it can be handy to create additional output categories. This change allows using fn_match style wildcards to create additional categories which will then be summarized. For instance: python post_build_ninja_summary.py -C out/Def -s prec*.obj;blink*.obj In addition the chromium_step_types environment variable can be set so that when autoninja runs this script there will be additional summary categories. This has been used most recently when measuring the cost of creating and using blink precompiled header files. Bug: 1061326 Change-Id: I080b4ddd06d045a2351220e202cd9eec111bf00e Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2093145 Auto-Submit: Bruce Dawson <brucedawson@chromium.org> Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org> Commit-Queue: Bruce Dawson <brucedawson@chromium.org> |
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README.md
depot_tools
Tools for working with Chromium development. It requires python 2.7.
Tools
The most important tools are:
fetch
: Agclient
wrapper to checkout a project. Usefetch --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. Usegclient help
for more details and README.gclient.md.git cl
: A code review tool to interact with Rietveld or Gerrit. Usegit 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.
Updating
depot_tools
updates itself automatically when running gclient
tool. To
disable auto update, set the environment variable DEPOT_TOOLS_UPDATE=0
.
To update package manually, run update_depot_tools.bat
on Windows,
or ./update_depot_tools
on Linux or Mac.
On Windows only, running gclient
will install git
and python
.
Contributing
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 reviewer1@chromium.org,reviewer2@chromium.org --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.
cpplint.py
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.
Note that the cpplint.py
here is also used by the Tricium
analyzer,
so if the cpplint.py here changes, we should also update the copy used there.