Make list_files.py and list_dart_files.py return absolute paths for GN

Make list_files.py and list_dart_files.py return absolute paths for GN

This makes doing an SDK build in the Fuchsia tree easier.

The previous attempt at this change failed in gyp builds targeting xcode.
They failed because input lists for actions of the same target (e.g. the
actions for dartanalyzer) are merged and de-duped when the lists contain
relative paths, but merged and *not* de-duped when the lists contain
absolute paths. gyp rejects xcode files that it generated itself
when they contain duplicate entries.

This CL works around that bug, by using absolute paths in the GN build
and keeping relative paths in the gyp build.

R=rmacnak@google.com

Committed: https://github.com/dart-lang/sdk/commit/ccfafee0239068d5c98017ae5e14ccef29c835c4

[zra, 2016-12-13 05:40:02]

Description was changed from

==========
Make list_files.py and list_dart_files.py return absolute paths for GN

This makes doing an SDK build in the Fuchsia tree easier
==========

to

==========
Make list_files.py and list_dart_files.py return absolute paths for GN

This makes doing an SDK build in the Fuchsia tree easier.

The previous attempt at this change failed in gyp builds targeting xcode.
They failed because input lists for actions of the same target (e.g. the
actions for dartanalyzer) are merged and de-duped when the lists contain
relative paths, but merged and *not* de-duped when the lists contain
absolute paths. (wft?)

This CL works around that bug, by using absolute paths in the GN build
and keeping relative paths in the gyp build.
==========

[zra, 2016-12-13 05:42:06]

Description was changed from

==========
Make list_files.py and list_dart_files.py return absolute paths for GN

This makes doing an SDK build in the Fuchsia tree easier.

The previous attempt at this change failed in gyp builds targeting xcode.
They failed because input lists for actions of the same target (e.g. the
actions for dartanalyzer) are merged and de-duped when the lists contain
relative paths, but merged and *not* de-duped when the lists contain
absolute paths. (wft?)

This CL works around that bug, by using absolute paths in the GN build
and keeping relative paths in the gyp build.
==========

to

==========
Make list_files.py and list_dart_files.py return absolute paths for GN

This makes doing an SDK build in the Fuchsia tree easier.

The previous attempt at this change failed in gyp builds targeting xcode.
They failed because input lists for actions of the same target (e.g. the
actions for dartanalyzer) are merged and de-duped when the lists contain
relative paths, but merged and *not* de-duped when the lists contain
absolute paths. gyp rejects xcode files that it generated itself
when they contain duplicate entries.

This CL works around that bug, by using absolute paths in the GN build
and keeping relative paths in the gyp build.
==========

[zra, 2016-12-13 05:42:46]

zra@google.com changed reviewers:
+ johnmccutchan@google.com, rmacnak@google.com

[rmacnak, 2016-12-13 17:27:30]

lgtm

[zra, 2016-12-13 18:01:31]

Description was changed from

==========
Make list_files.py and list_dart_files.py return absolute paths for GN

This makes doing an SDK build in the Fuchsia tree easier.

The previous attempt at this change failed in gyp builds targeting xcode.
They failed because input lists for actions of the same target (e.g. the
actions for dartanalyzer) are merged and de-duped when the lists contain
relative paths, but merged and *not* de-duped when the lists contain
absolute paths. gyp rejects xcode files that it generated itself
when they contain duplicate entries.

This CL works around that bug, by using absolute paths in the GN build
and keeping relative paths in the gyp build.
==========

to

==========
Make list_files.py and list_dart_files.py return absolute paths for GN

This makes doing an SDK build in the Fuchsia tree easier.

The previous attempt at this change failed in gyp builds targeting xcode.
They failed because input lists for actions of the same target (e.g. the
actions for dartanalyzer) are merged and de-duped when the lists contain
relative paths, but merged and *not* de-duped when the lists contain
absolute paths. gyp rejects xcode files that it generated itself
when they contain duplicate entries.

This CL works around that bug, by using absolute paths in the GN build
and keeping relative paths in the gyp build.

R=rmacnak@google.com

Committed:
https://github.com/dart-lang/sdk/commit/ccfafee0239068d5c98017ae5e14ccef29c835c4
==========

[zra, 2016-12-13 18:01:32]

Committed patchset #2 (id:20001) manually as
ccfafee0239068d5c98017ae5e14ccef29c835c4 (presubmit successful).