Fix generate_tag

.github/scripts/generate_tag.py

@@ -20,20 +20,38 @@
 
 sys.path.insert(0, os.getcwd())
 
-import ioplace_parser  # noqa: E402
-
 print("Getting tags…")
 
 latest_tag = None
 latest_tag_commit = None
 tags = [pair[1] for pair in gh.ioplace_parser.tags]
 
-tag_exists = ioplace_parser.__version__ in tags
+
+def __get_version():
+    import re
+
+    rx = re.compile(r"version\s*=\s*\"([^\"]+)\"")
+    __oldir__ = os.path.dirname(
+        os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+    )
+    pyproject_path = os.path.join(__oldir__, "pyproject.toml")
+    try:
+        match = rx.search(open(pyproject_path, encoding="utf8").read())
+        assert match is not None, "FATAL: version not found in pyproject.toml"
+        return match[1]
+    except FileNotFoundError:
+        print("Warning: Failed to find OpenLane version.", file=sys.stderr)
+        return "UNKNOWN"
+
+
+version = __get_version()
+
+tag_exists = version in tags
 
 if tag_exists:
     print("Tag already exists. Leaving NEW_TAG unaltered.")
 else:
-    new_tag = ioplace_parser.__version__
+    new_tag = version
 
     print("Found new tag %s." % new_tag)
     gh.export_env("NEW_TAG", new_tag)