From 75ba3b8614920ab13cc6be144f04051a806558a1 Mon Sep 17 00:00:00 2001
From: Rodja Trappe <rodja@zauberzeug.com>
Date: Fri, 3 Nov 2023 15:56:18 +0100
Subject: [PATCH] helper script to build release notes

---
 fetch_milestone.py | 54 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100755 fetch_milestone.py

diff --git a/fetch_milestone.py b/fetch_milestone.py
new file mode 100755
index 000000000..9808679e5
--- /dev/null
+++ b/fetch_milestone.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+import argparse
+import re
+import sys
+
+import requests
+
+BASE_URL = 'https://api.github.com/repos/zauberzeug/rosys'
+
+parser = argparse.ArgumentParser(description='Fetch the content of a milestone from a GitHub repo.')
+parser.add_argument('milestone_title', help='Title of the milestone to fetch.')
+args = parser.parse_args()
+milestone_title: str = args.milestone_title
+
+milestones = requests.get(f'{BASE_URL}/milestones', timeout=5).json()
+matching_milestones = [milestone for milestone in milestones if milestone['title'] == milestone_title]
+if not matching_milestones:
+    print(f'Milestone "{milestone_title}" not found!')
+    sys.exit(1)
+milestone_number = matching_milestones[0]['number']
+
+issues = requests.get(f'{BASE_URL}/issues?milestone={milestone_number}&state=all', timeout=5).json()
+notes = {
+    'New features and enhancements': [],
+    'Bugfixes': [],
+    'Documentation': [],
+    'Others': [],
+}
+for issue in issues:
+    title: str = issue['title']
+    user: str = issue['user']['login']
+    body: str = issue['body']
+    labels: list[str] = [label['name'] for label in issue['labels']]
+    number_patterns = [r'#(\d+)', r'https://github.com/zauberzeug/rosys/(?:issues|discussions|pulls)/(\d+)']
+    numbers = [issue['number']] + [int(match) for pattern in number_patterns for match in re.findall(pattern, body)]
+    numbers_str = ', '.join(f'#{number}' for number in sorted(numbers))
+    note = f'{title.strip()} ({numbers_str} by @{user})'
+    if 'bug' in labels:
+        notes['Bugfixes'].append(note)
+    elif 'enhancement' in labels:
+        notes['New features and enhancements'].append(note)
+    elif 'documentation' in labels:
+        notes['Documentation'].append(note)
+    else:
+        notes['Others'].append(note)
+
+for title, notes in notes.items():
+    if not notes:
+        continue
+    print(f'### {title}')
+    print()
+    for note in notes:
+        print(f'- {note}')
+    print()