github.py

import json
import subprocess
from functools import cmp_to_key

from version import version_greater


# リポジトリから最新のStable/Preリリースを取得する
def get_latest_releases(repo: str, require_mpp: bool = False) -> dict:
    print(f"  -> Fetching release history for {repo}...")
    cmd = ["gh", "api", f"repos/{repo}/releases?per_page=30"]
    try:
        result = subprocess.run(cmd, capture_output=True, text=True, check=True)
        releases = json.loads(result.stdout)
    except Exception as e:
        print(f"  -> [WARNING] Failed to fetch releases for {repo}: {e}")
        return {"stable": None, "pre": None}

    valid_stable = []
    valid_pre = []

    for r in releases:
        tag = r.get("tag_name")
        is_pre = r.get("prerelease", False)

        if require_mpp:
            has_mpp = any(a.get("name", "").endswith(".mpp") for a in r.get("assets", []))
            if not has_mpp: continue

        if is_pre:
            valid_pre.append(tag)
        else:
            valid_stable.append(tag)

    def cmp_versions(v1, v2):
        if v1 == v2: return 0
        return 1 if version_greater(v1, v2) else -1

    if valid_stable:
        valid_stable.sort(key=cmp_to_key(cmp_versions), reverse=True)
    if valid_pre:
        valid_pre.sort(key=cmp_to_key(cmp_versions), reverse=True)

    return {
        "stable": valid_stable[0] if valid_stable else None,
        "pre": valid_pre[0] if valid_pre else None
    }


# GitHubリリースを作成または更新する
def publish_github_release(tag_name: str, files: list, message: str, title: str, is_prerelease: bool):
    release_type = "Pre-release" if is_prerelease else "Stable release"
    print(f"  -> Publishing {release_type}: {tag_name}...")
    check_cmd = ["gh", "release", "view", tag_name]
    res = subprocess.run(check_cmd, capture_output=True)

    if res.returncode == 0:
        print("  -> Release already exists. Uploading assets to the existing release...")
        subprocess.run(["gh", "release", "upload", tag_name] + files + ["--clobber"], check=True)
    else:
        print("  -> Creating new release...")
        cmd_create = ["gh", "release", "create", tag_name] + files + ["-t", title, "-n", message]
        if is_prerelease: cmd_create.append("--prerelease")
        try:
            subprocess.run(cmd_create, check=True)
        except subprocess.CalledProcessError:
            print("  -> Release creation failed (race condition). Falling back to upload...")
            subprocess.run(["gh", "release", "upload", tag_name] + files + ["--clobber"], check=True)