Initial commit

scripts/prepare_changelog.py

@@ -0,0 +1,39 @@
+from datetime import datetime
+from pathlib import Path
+
+from my_package.version import VERSION
+
+
+def main():
+    changelog = Path("CHANGELOG.md")
+
+    with changelog.open() as f:
+        lines = f.readlines()
+
+    insert_index: int = -1
+    for i in range(len(lines)):
+        line = lines[i]
+        if line.startswith("## Unreleased"):
+            insert_index = i + 1
+        elif line.startswith(f"## [v{VERSION}]"):
+            print("CHANGELOG already up-to-date")
+            return
+        elif line.startswith("## [v"):
+            break
+
+    if insert_index < 0:
+        raise RuntimeError("Couldn't find 'Unreleased' section")
+
+    lines.insert(insert_index, "\n")
+    lines.insert(
+        insert_index + 1,
+        f"## [v{VERSION}](https://github.com/allenai/python-package-template/releases/tag/v{VERSION}) - "
+        f"{datetime.now().strftime('%Y-%m-%d')}\n",
+    )
+
+    with changelog.open("w") as f:
+        f.writelines(lines)
+
+
+if __name__ == "__main__":
+    main()