tree ea099590a3901f0bd404191184c0e61cee227852
parent ab638bd7cbb9ac8468bf2fbe60c74ed4706a14a7
author Andrew Grieve <agrieve@google.com> 1740428201 -0500
committer GN LUCI <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1740430576 -0800

Adds a path_exists() function

Useful for conditionally depending on deps, conditionally importing a
.gni, or setting default declare_args() values.

Bug: chromium:397994249
Change-Id: I61ba0b3e370502511ebdc5e2a07786fe389824b8
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/18200
Reviewed-by: Dirk Pranke <dpranke@google.com>
Commit-Queue: Andrew Grieve <agrieve@google.com>