Import of the watch repository from Pebble

platform/robert/boot/waftools/gitinfo.py

@@ -0,0 +1,48 @@
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import re
+
+import waflib.Context
+import waflib.Logs
+
+
+def get_git_revision(ctx):
+    try:
+        tag = ctx.cmd_and_log(['git', 'describe'], quiet=waflib.Context.BOTH).strip()
+        commit = ctx.cmd_and_log(['git', 'rev-parse', '--short', 'HEAD'],
+                                 quiet=waflib.Context.BOTH).strip()
+        timestamp = ctx.cmd_and_log(['git', 'log', '-1', '--format=%ct', 'HEAD'],
+                                    quiet=waflib.Context.BOTH).strip()
+    except Exception:
+        waflib.Logs.warn('get_git_version: unable to determine git revision')
+        tag, commit, timestamp = ("?", "?", "1")
+    # Validate that git tag follows the required form:
+    # See https://github.com/pebble/tintin/wiki/Firmware,-PRF-&-Bootloader-Versions
+    # Note: version_regex.groups() returns sequence ('0', '0', '0', 'suffix'):
+    version_regex = re.search("^v(\d+)(?:\.(\d+))?(?:\.(\d+))?(?:(?:-)(.+))?$", tag)
+    if version_regex:
+        # Get version numbers from version_regex.groups() sequence and replace None values with 0
+        # e.g. v2-beta11 => ('2', None, None, 'beta11') => ('2', '0', '0')
+        version = [x if x else '0' for x in version_regex.groups()[:3]]
+    else:
+        waflib.Logs.warn('get_git_revision: Invalid git tag! '
+                         'Must follow this form: `v0[.0[.0]][-suffix]`')
+        version = ['0', '0', '0', 'unknown']
+    return {'TAG': tag,
+            'COMMIT': commit,
+            'TIMESTAMP': timestamp,
+            'MAJOR_VERSION': version[0],
+            'MINOR_VERSION': version[1],
+            'PATCH_VERSION': version[2]}