commit | c9b0acaf0a11eee6b0152c51d9633758ad8c662c | [log] [tgz] |
---|---|---|
author | Shinichiro Hamaji <shinichiro.hamaji@gmail.com> | Fri Jul 31 16:47:56 2015 +0900 |
committer | Shinichiro Hamaji <shinichiro.hamaji@gmail.com> | Tue Aug 04 16:06:41 2015 +0900 |
tree | 006837ec89343f00666c0bc9fc5bedacb96e220e | |
parent | 39970310a89b06bc59c5d35e82bbb3c12109ed31 [diff] |
[C++] Re-generate ninja file when a file is added/removed With this change, we store the results of file list related commands in .kati_stamp. If one of them has been changed, we re-generate ninja file. Currently, this check is slow. We need to check the timestamp of directories first like what we are doing for $(wildcard).
kati is an experimental GNU make clone. The main goal of this tool is to speed-up incremental build of Android.
Currently, kati does not offer a faster build by itself. It instead converts your Makefile to a ninja file.
Set up kati:
% cd ~/src % git clone https://github.com/google/kati % cd kati % make
Build Android:
% cd <android-directory> % source build/envsetup.sh % lunch <your-choice> % ~/src/kati/m2n --kati_stats # Use --goma if you are a Googler. % ./ninja.sh
You need ninja in your $PATH.
% ./ninja.sh -t clean
Note ./ninja.sh passes all parameters to ninja.
For example, the following is equivalent to “make cts”:
% ./ninja.sh cts
Or, if you know the path you want, you can do:
% ./ninja.sh out/host/linux-x86/bin/adb
% ~/src/kati/m2n -j10 % ./ninja.sh
Or
% ./ninja.sh -j10
Note the latter kills the parallelism of goma.