tree ce8bad75466fa08f0b7c134be165a1785c696f8b
parent 64d35867ca0a1088f13de8f4ccaf1a5687d7f1ce
author Shezan Baig <sbaig1@bloomberg.net> 1767592034 -0500
committer GN LUCI <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1767606319 -0800

win: Use relative path for python in ninja files if possible

On Windows, `BuildSettings::python_path` returns the absolute path to
the script executable, even if it is within the root directory.  This
makes the ninja files non-portable because they include the absolute
path on the machine where `gn` was run.

This commit makes it such that if python is within the root directory,
we will use a relative path to it from the build directory when
generating the ninja rules.

This will allow us to setup siso rules to execute python scripts on
remote machines for Windows.

Note that we need to resolve the python path back to an absolute path when executing scripts within GN.

Change-Id: I1a1c2895efd868fb4cc6c9b8e2c61167bfe59211
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/20240
Reviewed-by: Takuto Ikuta <tikuta@google.com>
Commit-Queue: David Turner <digit@google.com>
Reviewed-by: David Turner <digit@google.com>