tree 2b9cacff44c276627a439fbbe9ef90f4c8347f17
parent 18df6af86191edab1e47c84d56e608da414d446b
author David 'Digit' Turner <digit@google.com> 1639590199 +0100
committer Commit Bot <commit-bot@chromium.org> 1639743738 +0000

build/gen.py: Fix regen command arguments generation.

The 'regen' rule embedded in the build.ninja generated by the
script was missing critical arguments like --use-lto, which caused
incremental rebuilds to alter the build configuration, leading
to surprises (especially when measuring performance!).

This fixes the issue by ensuring that any command-line argument
is properly re-created in the regen's command, with proper
shell quoting.

+ Upgrade from optparse to argparse Python module.
+ Remove obsolete imports

Bug: None
Change-Id: I8e3a995c0a9c6c46ceeb7878cd1db04674ef02cd
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/12640
Reviewed-by: Brett Wilson <brettw@chromium.org>
Commit-Queue: David Turner <digit@google.com>