FDroid automation in pipeline.

update_fdroid_index.py

@@ -0,0 +1,170 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import glob
+import hashlib
+import datetime
+import os
+import re
+import shutil
+import subprocess
+import sys
+import tempfile
+from typing import Optional
+
+APK_URL = "https://releases.grayjay.app/app-universal-release.apk"
+
+FDROID_REPO_SSH = "git@gitlab.futo.org:fdroid/repo-v2.git"
+FDROID_INDEX_PATH = "apps/Grayjay/index.yml"
+UNIVERSAL_APK_GLOB = "app/build/outputs/apk/stable/release/*universal*.apk"
+
+GIT_USER_NAME = "koen"
+GIT_USER_EMAIL = "koen@futo.org"
+
+class Fatal(Exception):
+    pass
+
+def run(cmd: list[str], *, cwd: Optional[str] = None) -> str:
+    p = subprocess.run(cmd, cwd=cwd, check=False, text=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+    if p.returncode != 0:
+        raise Fatal(f"Command failed ({p.returncode}): {' '.join(cmd)}\n{p.stdout}")
+    return p.stdout.strip()
+
+def sha256_of_file(path: str) -> str:
+    h = hashlib.sha256()
+    with open(path, "rb") as f:
+        for chunk in iter(lambda: f.read(1024 * 1024), b""):
+            h.update(chunk)
+    return h.hexdigest()
+
+def pick_universal_apk() -> str:
+    matches = sorted(glob.glob(UNIVERSAL_APK_GLOB))
+    if not matches:
+        raise Fatal(f"No universal APK found via glob: {UNIVERSAL_APK_GLOB}")
+
+    for m in matches:
+        base = os.path.basename(m)
+        if "app-stable-universal" in base:
+            return m
+
+    return matches[-1]
+
+def get_release_date_today() -> str:
+    return datetime.datetime.now(datetime.timezone.utc).date().isoformat()
+
+def get_version_code_from_tag() -> int:
+    tag = os.environ.get("CI_COMMIT_TAG", "").strip()
+    if not tag:
+        tag = run(["git", "describe", "--tags"]).strip()
+
+    m = re.search(r"(\d+)", tag)
+    if not m:
+        raise Fatal(f"Could not parse an integer versionCode from tag '{tag}'")
+
+    return int(m.group(1))
+
+def update_index_yml(path: str, sha256sum: str, date_str: str, version_code: int) -> None:
+    with open(path, "r", encoding="utf-8") as f:
+        lines = f.readlines()
+
+    url_line_idx = None
+    url_line_indent = ""
+    for i, line in enumerate(lines):
+        stripped = line.lstrip()
+        if stripped.startswith("- url:") and APK_URL in stripped:
+            url_line_idx = i
+            url_line_indent = line[: len(line) - len(stripped)]
+            break
+    if url_line_idx is None:
+        raise Fatal(f"Did not find an apk entry with url {APK_URL} in {path}")
+
+    def is_url_line_same_level(s: str) -> bool:
+        st = s.lstrip()
+        indent = s[: len(s) - len(st)]
+        return st.startswith("- url:") and indent == url_line_indent
+
+    end = len(lines)
+    for j in range(url_line_idx + 1, len(lines)):
+        if is_url_line_same_level(lines[j]):
+            end = j
+            break
+
+    child_indent = url_line_indent + "  "
+    found_sha = found_date = found_vc = False
+
+    for j in range(url_line_idx + 1, end):
+        st = lines[j].lstrip()
+        indent = lines[j][: len(lines[j]) - len(st)]
+        if st.startswith("sha256sum:"):
+            lines[j] = f"{indent}sha256sum: {sha256sum}\n"
+            found_sha = True
+        elif st.startswith("date:"):
+            lines[j] = f"{indent}date: {date_str}\n"
+            found_date = True
+        elif st.startswith("version-code:"):
+            lines[j] = f"{indent}version-code: {version_code}\n"
+            found_vc = True
+
+    insert_pos = url_line_idx + 1
+    to_insert: list[str] = []
+    if not found_sha:
+        to_insert.append(f"{child_indent}sha256sum: {sha256sum}\n")
+    if not found_date:
+        to_insert.append(f"{child_indent}date: {date_str}\n")
+    if not found_vc:
+        to_insert.append(f"{child_indent}version-code: {version_code}\n")
+    if to_insert:
+        lines[insert_pos:insert_pos] = to_insert
+
+    with open(path, "w", encoding="utf-8") as f:
+        f.writelines(lines)
+
+
+def main() -> int:
+    version_code = get_version_code_from_tag()
+    date_str = get_release_date_today()
+    
+    apk_path = pick_universal_apk()
+    print(f"Computing sha256 for {apk_path} ...")
+    sha = sha256_of_file(apk_path)
+    print(f"sha256: {sha}")
+    print(f"date: {date_str}")
+    print(f"version-code: {version_code}")
+
+    tmpdir = tempfile.mkdtemp(prefix="fdroid-repo-")
+    try:
+        print(f"Cloning {FDROID_REPO_SSH} ...")
+        run(["git", "clone", "--depth", "1", FDROID_REPO_SSH, tmpdir])
+
+        run(["git", "config", "user.name", GIT_USER_NAME], cwd=tmpdir)
+        run(["git", "config", "user.email", GIT_USER_EMAIL], cwd=tmpdir)
+
+        index_path = os.path.join(tmpdir, FDROID_INDEX_PATH)
+        if not os.path.exists(index_path):
+            raise Fatal(f"Missing {FDROID_INDEX_PATH} in repo-v2")
+
+        update_index_yml(index_path, sha, date_str, version_code)
+
+        run(["git", "add", FDROID_INDEX_PATH], cwd=tmpdir)
+
+        diff_rc = subprocess.run(["git", "diff", "--cached", "--quiet"], cwd=tmpdir).returncode
+        if diff_rc == 0:
+            print("No changes to commit.")
+            return 0
+
+        msg = f"Grayjay: update sha/date/version-code to {version_code} ({date_str})"
+        run(["git", "commit", "-m", msg], cwd=tmpdir)
+        run(["git", "push"], cwd=tmpdir)
+
+        print("Pushed update to fdroid/repo-v2.")
+        return 0
+    finally:
+        shutil.rmtree(tmpdir, ignore_errors=True)
+
+
+if __name__ == "__main__":
+    try:
+        raise SystemExit(main())
+    except Fatal as e:
+        print(f"ERROR: {e}", file=sys.stderr)
+        raise SystemExit(2)