From 5e3b27de6c1875252d2becd7df6f041d130d2505 Mon Sep 17 00:00:00 2001
From: Chris Markiewicz <effigies@gmail.com>
Date: Tue, 3 Sep 2024 16:59:16 -0400
Subject: [PATCH] Add changelog script

---
 tools/make_changelog.py | 94 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100755 tools/make_changelog.py

diff --git a/tools/make_changelog.py b/tools/make_changelog.py
new file mode 100755
index 0000000000..127cf41495
--- /dev/null
+++ b/tools/make_changelog.py
@@ -0,0 +1,94 @@
+#!/usr/bin/env -S uv run
+# /// script
+# requires-python = ">=3.11"
+# dependencies = [
+#   "httpx",
+# ]
+# ///
+
+# How to use this script:
+# 1. Go to https://github.com/bids-standard/bids-specification/releases/new and
+#    generate a new changelog. Do not release. Paste the contents into `auto-changelog.txt`.
+# 2. Generate a GitHub token at https://github.com/settings/tokens with `public_repo` scope.
+#    Set the `GITHUB_TOKEN` environment variable to the token.
+# 3. Run this script with `uv run`, `pipx run`, `pip run` or similar. Or run with Python,
+#    but you will need to install httpx into your environment.
+#
+# This will output to stdout the PRs that are not excluded from the changelog.
+#
+# Future versions could modify the changelog file in place, but this is the limit of my
+# interest for now.
+
+import asyncio
+import os
+import re
+import sys
+from pathlib import Path
+
+import httpx
+
+GITHUB_TOKEN = os.getenv("GITHUB_TOKEN")
+REPO_OWNER = "bids-standard"
+REPO_NAME = "bids-specification"
+
+if not GITHUB_TOKEN:
+    raise ValueError("Please set the GITHUB_TOKEN environment variable")
+
+auto_changelog = Path("auto-changelog.txt")
+
+if not auto_changelog.exists():
+    raise FileNotFoundError("auto-changelog.txt not found")
+
+pr_numbers = reversed(
+    [line.split("/")[-1] for line in auto_changelog.read_text().splitlines()]
+)
+
+headers = {
+    "Authorization": f"Bearer {GITHUB_TOKEN}",
+    "X-GitHub-Api-Version": "2022-11-28",
+    "Accept": "application/vnd.github.v3+json",
+}
+
+
+async def get_pr_details(client, pr_number):
+    url = f"https://api.github.com/repos/{REPO_OWNER}/{REPO_NAME}/pulls/{pr_number}"
+
+    response = await client.get(url)
+
+    if response.status_code == 200:
+        pr_data = response.json()
+        labels = [label["name"] for label in pr_data.get("labels", [])]
+
+        if "exclude-from-changelog" not in labels:
+            return (
+                pr_data.get("title"),
+                pr_data.get("html_url"),
+                pr_data["user"]["login"],
+                pr_data["user"]["html_url"],
+            )
+    else:
+        print(
+            f"Failed to fetch PR #{pr_number}: {response.status_code}", file=sys.stderr
+        )
+    return (None, None, None, None)
+
+
+async def main():
+    cat = re.compile(r"^\[[^\]]+\]")
+    async with httpx.AsyncClient(headers=headers) as client:
+        pr_summaries = {}
+        for pr_number in pr_numbers:
+            title, pr_url, username, user_url = await get_pr_details(client, pr_number)
+            if title:
+                category = cat.match(title).group()
+                pr_summaries.setdefault(category, []).append(
+                    f"- {title} [{pr_number}]({pr_url}) ([{username}]({user_url}))"
+                )
+
+    for category in sorted(pr_summaries):
+        for pr_summary in pr_summaries[category]:
+            print(pr_summary)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())