dart-sdk/build/dart
Zach Anderson f60d32167f [gn] Deprecate copy_trees()
Part of https://github.com/flutter/flutter/issues/144430

Previously, this code did backflips to accomplish two goals
1. Collect the paths of all files that would be copied from one place to another after applying regex filters so that they could be listed as the "inputs" to a GN action.
2. Arrange so that the python script doing the above would only be invoked once during GN to reduce the cost of calling out to python.

However, this is exactly the use-case for the "depfile" parameter to a GN action. Instead of running the script during GN to populate the "inputs" list, when we run the copy_tree.py script, we can instead ask it to generate a depfile to collect all the input files that were actually copied after applying the regex filter. Using that, we don't have to run the python script at all during GN.

TEST=it builds

Change-Id: I41a251ce4659119cdc3997bb2d6fc7ee0831bb6d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/356481
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
2024-03-08 20:47:47 +00:00
..
copy_tree.gni [gn] Deprecate copy_trees() 2024-03-08 20:47:47 +00:00
dart_action.gni [gn] Clean up some vestiges of building in the Fuchsia tree 2024-03-05 15:02:49 +00:00