more gyp cleanup before The Big Switchover

Some final cleanups leading up to The Official Switch to Gyp:

1. Create a single public skia.gyp file that all outside projects (Chrome, Android, etc.) should depend on from now on.  I haven't yet created targets suitable for those projects to use, but this is where we should add them.
2. Make gyp generate its Makefiles within out/ directory, rather than polluting directories under source control.
3. Modify trunk/Makefile to automatically run gyp_skia and then call the generated Makefile, to ease developer transition.

[Stephen White, 2011-06-06 23:37:05]

http://codereview.appspot.com/4580043/diff/1/gyp_skia
File gyp_skia (right):

http://codereview.appspot.com/4580043/diff/1/gyp_skia#newcode78
gyp_skia:78: args.extend(['--depth', '.'])
I think this will mean you can only run gyp_skia from the same directory as the
script, no?

[bungeman, 2011-06-07 13:21:00]

Other than keeping around the deprecated files (all.gyp and gyp/gyp_skia) the
rest LGTM.

http://codereview.appspot.com/4580043/diff/1/gyp/all.gyp
File gyp/all.gyp (right):

http://codereview.appspot.com/4580043/diff/1/gyp/all.gyp#newcode16
gyp/all.gyp:16: #
Do we really need to keep this?

http://codereview.appspot.com/4580043/diff/1/gyp/gyp_skia
File gyp/gyp_skia (right):

http://codereview.appspot.com/4580043/diff/1/gyp/gyp_skia#newcode29
gyp/gyp_skia:29: #
I can see keeping the old makefile, since it's been used in the past, but do we
need to keep this file? Is anyone already depending on this?

[epoger, 2011-06-07 14:16:27]

On 2011/06/06 23:37:05, Stephen White wrote:
> http://codereview.appspot.com/4580043/diff/1/gyp_skia
> File gyp_skia (right):
> 
> http://codereview.appspot.com/4580043/diff/1/gyp_skia#newcode78
> gyp_skia:78: args.extend(['--depth', '.'])
> I think this will mean you can only run gyp_skia from the same directory as
the
> script, no?

I must admit to being mystified by gyp's depth argument, so thanks for asking. 
But I have confirmed that this script can be run from within the trunk/gyp/
subdir.  (It still generates its output in trunk/out)

[epoger, 2011-06-07 14:22:43]

Thanks, guys.  I made a couple of further improvements to the toplevel Makefile;
please let me know if those look OK too.

[epoger, 2011-06-07 14:23:29]

On 2011/06/07 13:21:00, bungeman wrote:
> Other than keeping around the deprecated files (all.gyp and gyp/gyp_skia) the
> rest LGTM.
> 
> http://codereview.appspot.com/4580043/diff/1/gyp/all.gyp
> File gyp/all.gyp (right):
> 
> http://codereview.appspot.com/4580043/diff/1/gyp/all.gyp#newcode16
> gyp/all.gyp:16: #
> Do we really need to keep this?
> 
> http://codereview.appspot.com/4580043/diff/1/gyp/gyp_skia
> File gyp/gyp_skia (right):
> 
> http://codereview.appspot.com/4580043/diff/1/gyp/gyp_skia#newcode29
> gyp/gyp_skia:29: #
> I can see keeping the old makefile, since it's been used in the past, but do
we
> need to keep this file? Is anyone already depending on this?

Ben and I discussed this... I will indeed blow those old files away within the
next day or two.

[epoger, 2011-06-07 14:49:14]

committed as r1526