[webkit-dev] Proposal: Make Ninja the default build-system for build-webkit --chromium

[Nico Weber]

On Sat, Jan 12, 2013 at 9:49 PM, Nico Weber <thakis at chromium.org> wrote:
> On Tue, Dec 11, 2012 at 3:43 PM, Eric Seidel <eric at webkit.org> wrote:
>> Nevermind.  After further discussion with Nico, this can't work yet.
>>
>> Ninja is currently configured to use a non-webkitty "out" build
>> directory, which is undoubtably going to confus some scripts/bots.
>>
>> We'll try this again at a later time.  Apologies for the noise.
>
> If you build WebKit/chromium on Linux (i.e. Chromium/Linux and
> Chromium/Android), you're now using ninja. The Chromium Linux Release
> and Chromium Android Release build bots seem to be working fine.
>
> Admire the exciting build output:
> http://build.webkit.org/builders/Chromium%20Linux%20Release/builds/65467/steps/compile-webkit/logs/stdio
>
> Let us know if anything is not working for you.
>
> (If you must use make, you can pass --no-ninja to update-webkit, and
> build-webkit will use make again. If you do this, please let me know
> why.)

Chromium/Mac webkit builds now uses ninja by default too. The bot's
build output is now a little more concise:
http://build.webkit.org/builders/Chromium%20Mac%20Release/builds/53889/steps/compile-webkit/logs/stdio

On my laptop, full builds are 10% faster and empty builds (the minimum
time you need to wait for a build) are 30x as fast.

If you still need xcodebuild, you can pass --no-ninja to
update-webkit. Please let us know if and why you do this.

Nico

ps: Switching Chromium/Windows is blocked on http://crbug.com/169945,
so it probably won't happen soon.