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#!/usr/bin/env python3
import re
import os
import logging
import subprocess
import requests
# Configure logging
logging.basicConfig(
format='%(asctime)s - %(levelname)s - %(message)s', level=logging.INFO,
datefmt='%Y-%m-%d %H:%M:%S')
def get_commit(version_url):
"""Fetches the git hash from the Chromium ffmpeg submodule URL using requests.
Args:
version_url: The URL of the Chromium ffmpeg submodule for a specific version.
Returns:
The git commit hash found in the submodule URL, or None if not found.
"""
try:
# Use requests.get to fetch the URL content
response = requests.get(version_url)
response.raise_for_status() # Raise exception for non-200 status codes
# Search for commit hash within the 'gitlink-detail' class (adapt if needed)
match = re.search(
r'<div class="gitlink-detail">Submodule link to (.*?) of', response.text)
if match:
return match.group(1)
else:
return None
except requests.exceptions.RequestException as e:
logging.error(f"Error: Failed to fetch URL {version_url} - {e}")
return None
def archive_ffmpeg(version, commit_hash):
"""Archives the Chromium ffmpeg repository at the specified commit hash.
Args:
version: The Chromium major version (e.g. 123).
commit_hash: The git commit hash of the desired ffmpeg revision.
"""
# Base directory for ffmpeg checkout (configurable)
ffmpeg_dir = os.getenv("FFMPEG_TEMP_DIR", "/tmp/ffmpeg")
# Archive filename with version substitution
archive_name = f"/tmp/ffmpeg-chromium-{version}.tar.xz"
repo_uri = "https://chromium.googlesource.com/chromium/third_party/ffmpeg"
# Check if ffmpeg directory already exists
if os.path.exists(ffmpeg_dir):
# Verify remote URL matches expected repository
try:
output = subprocess.run(
["git", "remote", "-v"], cwd=ffmpeg_dir, capture_output=True, check=True).stdout.decode()
if not re.search(repo_uri, output, re.MULTILINE):
logging.error(
f"Existing ffmpeg directory {ffmpeg_dir} points to a different remote. Please remove and re-clone.")
exit(1)
except subprocess.CalledProcessError as e:
logging.error(f"Error verifying remote URL: {e}")
exit(1)
# Update existing repository
try:
subprocess.run(["git", "pull"], cwd=ffmpeg_dir, check=True)
except subprocess.CalledProcessError as e:
logging.error(f"Error updating ffmpeg repository: {e}")
exit(1)
else:
# Clone the Chromium ffmpeg repository
try:
subprocess.run(
["git", "clone", repo_uri, ffmpeg_dir], check=True)
except subprocess.CalledProcessError as e:
logging.error(f"Error cloning ffmpeg repository: {e}")
exit(1)
# Archive the ffmpeg directory with prefix and specific commit hash
try:
logging.info(
f"Archiving ffmpeg-chromium@{commit_hash}, this may take a moment...")
subprocess.run(["git", "archive", "--format=tar.xz", "-o", archive_name,
f"--prefix=ffmpeg-chromium-{version}/", commit_hash], cwd=ffmpeg_dir, check=True)
logging.info(
f"ffmpeg-chromium@{commit_hash} archived to {archive_name}")
except subprocess.CalledProcessError as e:
logging.error(f"Error archiving ffmpeg: {e}")
def copy_and_update_ebuild(version, commit_hash):
"""Copies the latest ffmpeg-chromium.ebuild and updates the COMMIT variable.
Args:
version: The Chromium version (e.g., 124).
commit_hash: The git commit hash of the desired ffmpeg revision.
"""
# Target directory for ffmpeg-chromium ebuilds (configurable)
ebuild_dir = os.getenv("FFMPEG_EBUILD_DIR",
"/var/db/repos/gentoo/media-video/ffmpeg-chromium")
# Destination ebuild filename with version substitution
dest_ebuild = f"ffmpeg-chromium-{version}.ebuild"
# Find the highest version ebuild file
highest_version = None
for filename in os.listdir(ebuild_dir):
match = re.match(r"ffmpeg-chromium-(\d+)\.ebuild", filename)
if match:
current_version = int(match.group(1))
if highest_version is None or current_version > highest_version:
highest_version = current_version
highest_ebuild = os.path.join(ebuild_dir, filename)
# Check if a higher version ebuild exists
if highest_version:
# Copy the highest version ebuild
try:
subprocess.run(["cp", highest_ebuild,
os.path.join(ebuild_dir, dest_ebuild)],
check=True,)
except subprocess.CalledProcessError as e:
logging.error(f"Error copying ebuild file: {e}")
exit(1)
logging.info(
f"Copied ffmpeg-chromium-{highest_version}.ebuild to {dest_ebuild}"
)
# Update the COMMIT variable in the copied ebuild
with open(os.path.join(ebuild_dir, dest_ebuild), "r+") as f:
lines = f.readlines()
for i, line in enumerate(lines):
if line.startswith("COMMIT="):
lines[i] = f"COMMIT={commit_hash}\n"
f.seek(0)
f.writelines(lines)
logging.info(
f"Updated COMMIT variable in {dest_ebuild} to {commit_hash}")
break
else:
logging.info(
f"No existing ffmpeg-chromium ebuilds found in {ebuild_dir}")
def main():
"""Main function to handle user input and script execution."""
version_regex = r"^\d+\.\d+(?:\.\d+(?:\.\d+)?)?$" # Validate version format
while True:
version = input("Enter Chromium version (e.g., 123.0.4567.890): ")
if re.match(version_regex, version):
break
else:
print(
"Invalid version format. Please enter a version like X.Y.Z.W (e.g., 123.0.4567.890)")
version_url = f"https://chromium.googlesource.com/chromium/src.git/+/refs/tags/{version}/third_party/ffmpeg"
commit_hash = get_commit(version_url)
if commit_hash:
logging.info(
f"Chromium version {version} uses ffmpeg commit {commit_hash}")
major_version = version.split(".")[0]
archive_ffmpeg(major_version, commit_hash)
copy_and_update_ebuild(major_version, commit_hash)
else:
logging.error(
f"Failed to retrieve commit hash for Chromium version {version}")
if __name__ == "__main__":
main()
|
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