action: Allow the user to set the west manifest import flag

In some cases, when using checked out trees to construct the manifest
objects, it is important for users to be able to select which projects
are imported, because they may have import statements in their manifests
that they may want to honour or not.
This commit allows the action user to select between
import all projects (the default), none or only the projects in the
self: section of the manifest.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>

Author: carlescufi

action.py

@@ -48,9 +48,12 @@ def cmd2str(cmd):
 
     return " ".join(shlex.quote(word) for word in cmd)
 
-# Taken from Zephyr's check_compliance script
-
+def str2import_flag(import_flag):
+    flags = {'all': ImportFlag.DEFAULT, 'none': ImportFlag.IGNORE,
+             'self': ImportFlag.IGNORE_PROJECTS}
+    return flags[import_flag]
 
+# Taken from Zephyr's check_compliance script
 def git(*args, cwd=None):
     # Helper for running a Git command. Returns the rstrip()ed stdout output.
     # Called like git("diff"). Exits with SystemError (raised by sys.exit()) on
@@ -238,7 +241,7 @@ def _get_manifests_from_gh(token, gh_repo, mpath, new_mfile, base_sha):
 
     return (old_manifest, new_manifest)
 
-def _get_manifests_from_tree(mpath, gh_pr, checkout, base_sha):
+def _get_manifests_from_tree(mpath, gh_pr, checkout, base_sha, import_flag):
     # Check if current tree is at the right location
 
     mfile = (Path(checkout) / Path(mpath)).resolve()
@@ -253,7 +256,7 @@ def manifest_at_rev(sha):
             # Use --quiet to avoid Git writing a warning about a commit left
             # behind in stderr
             git('checkout', '--quiet', '--detach', sha, cwd=checkout)
-        return Manifest.from_file(mfile)
+        return Manifest.from_file(mfile, import_flags=import_flag)
 
     old_manifest = manifest_at_rev(base_sha)
     new_manifest = manifest_at_rev(gh_pr.head.sha)
@@ -337,6 +340,10 @@ def main():
                         required=False,
                         help='Use a checked-out tree to parse the manifests.')
 
+    parser.add_argument('--west-import-flag', action='store',
+                        required=False, choices=['all', 'none', 'self'],
+                        help='Use a checked-out tree to parse the manifests.')
+
     parser.add_argument('--check-impostor-commits', action='store',
                         required=False,
                         help='Check for impostor commits.')
@@ -366,6 +373,7 @@ def main():
 
     message = args.message if args.message != 'none' else None
     checkout = args.checkout_path if args.checkout_path != 'none' else None
+    import_flag = str2import_flag(args.west_import_flag or 'all')
     use_tree = args.use_tree_checkout != 'false'
     check_impostor = args.check_impostor_commits != 'false'
     labels = [x.strip() for x in args.labels.split(',')] \
@@ -414,7 +422,8 @@ def main():
     if use_tree:
         (old_manifest, new_manifest) = _get_manifests_from_tree(mpath,
                                                                 gh_pr, checkout,
-                                                                base_sha)
+                                                                base_sha,
+                                                                import_flag)
     else:
         (old_manifest, new_manifest) = _get_manifests_from_gh(token, gh_repo,
                                                               mpath, new_mfile,

action.yml

@@ -18,6 +18,11 @@ inputs:
     description: 'If true, comparison will be made on Git tree checkouts'
     default: 'false'
     required: false
+  west-import-flag:
+    description: 'West import flag to use when parsing the checked out manifest. 
+                  Choices are all, none, self'
+    default: 'all'
+    required: false
   check-impostor-commits:
     description: 'If true, a check for impostor commits will be performed'
     default: 'false'
@@ -62,6 +67,7 @@ runs:
            -l "${{ inputs.labels }}" --label-prefix "${{ inputs.label-prefix }}" \
            --dnm-labels "${{ inputs.dnm-labels }}"  -v "${{ inputs.verbosity-level }}" \
            --use-tree-checkout "${{ inputs.use-tree-checkout }}" \
+           --west-import-flag "${{ inputs.west-import-flag }}" \
            --check-impostor-commits "${{ inputs.check-impostor-commits }}"
       shell: bash
       env: