diff --git a/requirements.txt b/requirements.txt
index ab5ca72e8..891663cbb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+polib==1.2.0
pomerge==0.1.4
potodo==0.23.1
powrap==1.0.2
diff --git a/scripts/commit.sh b/scripts/commit.sh
index 86c6d8f12..06f265534 100755
--- a/scripts/commit.sh
+++ b/scripts/commit.sh
@@ -5,7 +5,8 @@
set -eu
-cd $(dirname $0)/../cpython/Doc/locales/${PYDOC_LANGUAGE}/LC_MESSAGES
+rootdir=$(realpath $(dirname $0))
+cd $rootdir/../cpython/Doc/locales/${PYDOC_LANGUAGE}/LC_MESSAGES
extra_files=".tx/config stats.json potodo.md"
@@ -41,4 +42,7 @@ fi
set -u
# Commit only if there is any cached file
-git diff-index --cached --quiet HEAD || { git add -v $extra_files; git commit -vm "Update translations"; }
+if ! git diff-index --cached --quiet HEAD; then
+ git add -v $extra_files
+ git commit -vm "$($rootdir/generate_commit_msg.py)"
+fi
diff --git a/scripts/generate_commit_msg.py b/scripts/generate_commit_msg.py
new file mode 100755
index 000000000..16b0b2a20
--- /dev/null
+++ b/scripts/generate_commit_msg.py
@@ -0,0 +1,89 @@
+#!/usr/bin/env python
+"""
+Generate a commit message
+Parses staged files and generates a commit message with Last-Translator's as
+co-authors.
+Based on Stan Ulbrych's implementation for Python Doc' Polish team
+"""
+
+import argparse
+import contextlib
+import os
+from subprocess import run, CalledProcessError
+from pathlib import Path
+
+from polib import pofile, POFile
+
+
+def generate_commit_msg():
+ translators: set[str] = set()
+
+ result = run(
+ ["git", "diff", "--cached", "--name-only", "--diff-filter=ACM"],
+ capture_output=True,
+ text=True,
+ check=True,
+ )
+ staged = [
+ filename for filename in result.stdout.splitlines() if filename.endswith(".po")
+ ]
+
+ for file in staged:
+ staged_file = run(
+ ["git", "show", f":{file}"], capture_output=True, text=True, check=True
+ ).stdout
+ try:
+ old_file = run(
+ ["git", "show", f"HEAD:{file}"],
+ capture_output=True,
+ text=True,
+ check=True,
+ ).stdout
+ except CalledProcessError:
+ old_file = ""
+
+ new_po = pofile(staged_file)
+ old_po = pofile(old_file) if old_file else POFile()
+ old_entries = {entry.msgid: entry.msgstr for entry in old_po}
+
+ for entry in new_po:
+ if entry.msgstr and (
+ entry.msgid not in old_entries
+ or old_entries[entry.msgid] != entry.msgstr
+ ):
+ translator = new_po.metadata.get("Last-Translator")
+ translator = translator.split(",")[0].strip()
+ if translator:
+ translators.add(f"Co-Authored-By: {translator}")
+ break
+
+ print("Update translation\n\n" + "\n".join(translators))
+
+
+# contextlib implemented chdir since Python 3.11
+@contextlib.contextmanager
+def chdir(path: Path):
+ """Temporarily change the working directory."""
+ original_dir = Path.cwd()
+ os.chdir(path)
+ try:
+ yield
+ finally:
+ os.chdir(original_dir)
+
+
+if __name__ == "__main__":
+ parser = argparse.ArgumentParser(
+ description="Generate commit message with translators as co-authors."
+ )
+ parser.add_argument(
+ "path",
+ type=Path,
+ nargs='?',
+ default=".",
+ help="Path to the Git repository (default: current directory)",
+ )
+ args = parser.parse_args()
+
+ with chdir(args.path):
+ generate_commit_msg()
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