Initial commit

poky/meta/lib/bblayers/setupwriters/oe-setup-layers.py

@@ -0,0 +1,52 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+import logging
+import os
+import json
+import stat
+
+logger = logging.getLogger('bitbake-layers')
+
+def plugin_init(plugins):
+    return OeSetupLayersWriter()
+
+class OeSetupLayersWriter():
+
+    def __str__(self):
+        return "oe-setup-layers"
+
+    def _write_python(self, input, output):
+        with open(input) as f:
+            script = f.read()
+        with open(output, 'w') as f:
+            f.write(script)
+        st = os.stat(output)
+        os.chmod(output, st.st_mode | stat.S_IEXEC | stat.S_IXGRP | stat.S_IXOTH)
+
+    def _write_json(self, repos, output):
+        with open(output, 'w') as f:
+            json.dump(repos, f, sort_keys=True, indent=4)
+
+    def do_write(self, parent, args):
+        """ Writes out a python script and a json config that replicate the directory structure and revisions of the layers in a current build. """
+        if not os.path.exists(args.destdir):
+            os.makedirs(args.destdir)
+        repos = parent.make_repo_config(args.destdir)
+        json = {"version":"1.0","sources":repos}
+        if not repos:
+            raise Exception("Could not determine layer sources")
+        output = args.output_prefix or "setup-layers"
+        output = os.path.join(os.path.abspath(args.destdir),output)
+        self._write_json(json, output + ".json")
+        logger.info('Created {}.json'.format(output))
+        if not args.json_only:
+            self._write_python(os.path.join(os.path.dirname(__file__),'../../../../scripts/oe-setup-layers'), output)
+        logger.info('Created {}'.format(output))
+
+    def register_arguments(self, parser):
+        parser.add_argument('--json-only', action='store_true',
+            help='When using the oe-setup-layers writer, write only the layer configuruation in json format. Otherwise, also a copy of scripts/oe-setup-layers (from oe-core or poky) is provided, which is a self contained python script that fetches all the needed layers and sets them to correct revisions using the data from the json.')