tree c836838c2a5d344648589cb1e3eb8fbd4fa61f96
parent 666912b6551e692c657569850f1a76e9bde062f6
author Takuto Ikuta <tikuta@google.com> 1785407439 +0900
committer gn-scoped@luci-project-accounts.iam.gserviceaccount.com <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1785418392 -0700

Support source-relative paths for script_executable

This is derived from
https://crrev.com/c/8160801/comment/bfc1cbdb_33949900/

Support source-relative paths starting with "//" for script_executable
in the dotfile (.gn) and via the --script-executable command line flag.

When specified with "//", the path is resolved relative to the source
root and subsequently converted into a build-dir-relative path in
BuildSettings::SetPythonPath. This avoids hardcoding relative paths from
the build directory.

Bug: 537680330
Change-Id: I64392fd11f021ec093d6aa3f9a3eb63d0c7223fd
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/24500
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@google.com>