west: sign/rimage: use env var SOF_SRC_DIR for SOF source dir

After removal of SOF from manifest, if rimage is in path,
the build would fail because the gen-uuid-reg.py cannot be
found anymore. So add a way to specify where the SOF source
is, so the signing script can find gen-uuid-reg.py. This would
allow building and signing without the SOF manifest.

Signed-off-by: Daniel Leung <[email protected]>

Author: dcpleung

scripts/west_commands/sign.py

@@ -554,11 +554,14 @@ def sign(self, command, build_dir, build_conf, formats):
         if not args.quiet:
             command.inf('Signing with tool {}'.format(tool_path))
 
-        try:
-            sof_proj = command.manifest.get_projects(['sof'], allow_paths=False)
-            sof_src_dir = pathlib.Path(sof_proj[0].abspath)
-        except ValueError: # sof is the manifest
-            sof_src_dir = pathlib.Path(manifest.manifest_path()).parent
+        if os.getenv("SOF_SRC_DIR"):
+            sof_src_dir = pathlib.Path(os.getenv("SOF_SRC_DIR"))
+        else:
+            try:
+                sof_proj = command.manifest.get_projects(['sof'], allow_paths=False)
+                sof_src_dir = pathlib.Path(sof_proj[0].abspath)
+            except ValueError: # sof is the manifest
+                sof_src_dir = pathlib.Path(manifest.manifest_path()).parent
 
         self.sof_src_dir = sof_src_dir