update-moz-central-vendoring.py

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#!/usr/bin/env python3

# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this

# file, You can obtain one at https://mozilla.org/MPL/2.0/.

import argparse

import pathlib

import re

import subprocess

import sys

APP_SERVICES_DEPENDENCY_RE = re.compile(

    r'([\w-]+).*{\s*git\s*=\s*"https://github.com/mozilla/application-services"'

APP_SERVICES_ROOT = pathlib.Path(__file__).parent.parent

def main():

    args = parse_args()

    moz_central_root = pathlib.Path(args.moz_central_dir)

    app_services_rev = get_app_services_rev()

    update_cargo_toml(moz_central_root / "Cargo.toml", app_services_rev)

    run_process(["./mach", "vendor", "rust"], cwd=moz_central_root)

    run_process(["./mach", "uniffi", "generate"], cwd=moz_central_root)

    print("The vendoring was successful")

    print(

        " - If you saw a warning saying `There are 2 different versions of crate X`, then "

        "follow the listed steps to resolve that issue"

    print(" - Run `./mach cargo vet` to manually vet any new dependencies")

    print(" - Commit any changes and submit a phabricator patch")

    print()

    print(

        "Details here: https://github.com/mozilla/application-services/blob/main/docs/howtos/vendoring-into-mozilla-central.md"

def run_process(command, cwd):

    result = subprocess.run(command, cwd=cwd, check=False)

    if result.returncode != 0:

        print("Vendoring failed, please see above errors", file=sys.stderr)

        sys.exit(1)

def parse_args():

    parser = argparse.ArgumentParser()

    parser.add_argument("moz_central_dir")

    return parser.parse_args()

def get_app_services_rev():

    return subprocess.check_output(

        ["git", "rev-parse", "HEAD"],

        encoding="utf-8",

        cwd=APP_SERVICES_ROOT,

    ).strip()

def update_cargo_toml(cargo_toml_path, app_services_rev):

    print(f"Updating application-services revision to {app_services_rev}")

    with open(cargo_toml_path) as f:

        lines = f.readlines()

        for i in range(len(lines)):

            line = lines[i]

            m = APP_SERVICES_DEPENDENCY_RE.match(line)

            if m:

                crate = m.group(1)

                lines[i] = (

                    f'{crate} = {{ git = "https://github.com/mozilla/application-services", rev = "{app_services_rev}" }}\n'

    with open(cargo_toml_path, "w") as f:

        f.write("".join(lines))

if __name__ == "__main__":

    main()