Generate changelog script + update changelog for v1.16.1

CHANGELOG.md

@@ -1,4 +1,7 @@
 # Changelog
+## v1.16.1
+- Include exception properties in failure details when orchestration throws directly by Naiyuan Tian ([#482](https://github.com/microsoft/durabletask-dotnet/pull/482))
+- Set low priority for scheduled runs by Daniel Castro ([#477](https://github.com/microsoft/durabletask-dotnet/pull/477))
 
 ## v1.16.0
 - Include Exception Properties at FailureDetails by nytian in([#474](https://github.com/microsoft/durabletask-dotnet/pull/474))

generate_changelog.py

@@ -0,0 +1,64 @@
+import subprocess
+import re
+import argparse
+
+def get_git_log(tag):
+    # try to find previous tag; fall back to the second-latest tag if needed
+    try:
+        prev_tag = subprocess.check_output(
+            "git tag --sort=-creatordate", shell=True, text=True
+        ).strip().split("\n")
+        # take the tag immediately before the given one
+        if tag in prev_tag:
+            idx = prev_tag.index(tag)
+            previous = prev_tag[idx + 1] if idx + 1 < len(prev_tag) else None
+        else:
+            previous = prev_tag[1] if len(prev_tag) > 1 else None
+    except Exception:
+        previous = None
+
+    format_str = "%h||%s||%an"
+    if previous:
+        cmd = f'git log {previous}..{tag} --pretty=format:"{format_str}"'
+    else:
+        # fallback: just commits reachable from tag
+        cmd = f'git log {tag} --pretty=format:"{format_str}" -n 50'
+
+    print(f"[DEBUG] Running: {cmd}")
+    output = subprocess.check_output(cmd, shell=True, text=True, encoding="utf-8", errors="ignore")
+    return [line.strip() for line in output.split("\n") if line.strip()]
+
+def extract_pr_info(message):
+    pr_match = re.search(r"(?:#|PR\s*)(\d+)", message)
+    pr_number = pr_match.group(1) if pr_match else None
+    # Strip out PR refs and noise
+    clean = re.sub(r"\(?#\d+\)?|Merge pull request.*|from.*|PR\s*\d+", "", message)
+    clean = clean.strip().capitalize()
+    return clean, pr_number
+
+def generate_changelog(tag):
+    lines = get_git_log(tag)
+    if not lines:
+        return f"## {tag}\n*(No commits found in range)*"
+
+    entries = []
+    for line in lines:
+        parts = line.split("||")
+        if len(parts) < 3:
+            continue
+        _, message, author = parts
+        title, pr_number = extract_pr_info(message)
+        if not title:
+            continue
+        pr_link = f"https://github.com/microsoft/durabletask-dotnet/pull/{pr_number}" if pr_number else ""
+        entries.append(f"- {title} by {author} ({f'[#'+pr_number+']('+pr_link+')' if pr_number else ''})")
+
+    return f"## {tag}\n" + "\n".join(entries)
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Generate changelog from git commits.")
+    parser.add_argument("--tag", required=True, help="Git tag to generate changelog for.")
+    args = parser.parse_args()
+
+    print("# Changelog\n")
+    print(generate_changelog(args.tag))