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* Issue https://github.com/mozilla-mobile/fenix/issues/14855 - Port L10N uplift script from AC, author grisha * Issue https://github.com/mozilla-mobile/fenix/issues/14855 - Additional usage note for l10n-uplift
102 lines
4.3 KiB
Python
Executable File
102 lines
4.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# Purpose: uplift (via cherry-picking) any missing commits from an l10n bot
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# from 'MAIN_BRANCH' to a specified release branch.
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#
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# Usage examples: (append --verbose to print out detailed information)
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# Dry-run (says what will happen, doesn't do any work): ./l10n-uplift.py releases/48.0
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# Uplift, actually perform the work: ./l10n-uplift.py releases/48.0 --uplift
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# Process multiple branches at once: ./l10n-uplift.py releases/48.0 releases/44.0 --uplift --verbose
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# Note: there can often be conflicts between cherry-picks, to catch duplication errors, build after conflict resolution: ./gradlew assembleDebug
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import subprocess
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import argparse
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# TODO don't forget to change this once we switch to 'main' or whatever other name.
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MAIN_BRANCH="master"
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L10N_AUTHOR="release+l10n-automation-bot@mozilla.com"
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def run_cmd_checked(*args, **kwargs):
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"""Run a command, throwing an exception if it exits with non-zero status."""
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kwargs["check"] = True
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kwargs["capture_output"] = True
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# beware! only run this script with inputs from a trusted, non-external source
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kwargs["shell"] = True
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try:
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return subprocess.run(*args, **kwargs).stdout.decode()
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except subprocess.CalledProcessError as err:
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print(err.stderr)
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raise err
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def uplift_commits(branch, verbose, uplift):
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print(f"\nProcessing l10n commits for '{branch}'...")
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# if necessary, this will setup 'branch' to track its upstream equivalent
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run_cmd_checked([f"git checkout {branch}"])
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# get l10n commits which happened on MAIN_BRANCH since 'branch' split off
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commits_since_split = run_cmd_checked([f"git rev-list {branch}..{MAIN_BRANCH} --author={L10N_AUTHOR}"]).split()
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# order commits by oldest-first, e.g. how we'd cherry pick them
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commits_since_split.reverse()
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print(f"Since '{branch}' split off '{MAIN_BRANCH}', there were {len(commits_since_split)} commit(s) from {L10N_AUTHOR}.")
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if verbose:
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print(f"\nHashes of those commits on '{MAIN_BRANCH}' are: {commits_since_split}\n")
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# look for 'cherry picked' commits, and get the original commit hash from the commit message (as left by 'cherry-pick -x')
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commits_already_uplifted = run_cmd_checked([f"git rev-list {MAIN_BRANCH}..{branch} --author={L10N_AUTHOR} --grep=\"cherry picked\" --pretty=%b | grep cherry | cut -d' ' -f5 | cut -c 1-40"]).split()
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commits_already_uplifted.reverse()
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print(f"Of those, {len(commits_already_uplifted)} commit(s) already uplifted.")
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if verbose:
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print(f"Hashes of commits already uplifted to '{branch}': {commits_already_uplifted}\n")
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commits_to_uplift = [commit for commit in commits_since_split if commit not in commits_already_uplifted]
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print(f"Need to uplift {len(commits_to_uplift)} commit(s).")
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if verbose:
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print(f"Hashes of commits to uplift from '{MAIN_BRANCH}' to '{branch}': {commits_to_uplift}\n")
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if len(commits_to_uplift) == 0:
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print("Nothing to uplift.")
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return
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if uplift:
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print(f"Uplifting (for real)...")
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else:
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print(f"Uplifting (dry-run)...")
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run_cmd_checked([f"git checkout {branch}"])
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for commit in commits_to_uplift:
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if verbose:
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print(f"Cherry picking {commit} from '{MAIN_BRANCH}' to '{branch}'")
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if uplift:
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run_cmd_checked([f"git cherry-pick {commit} -x"])
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if uplift:
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print(f"Uplifted {len(commits_to_uplift)} commits from '{MAIN_BRANCH}' to '{branch}'")
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parser = argparse.ArgumentParser(description=f"Uplift l10n commits from {MAIN_BRANCH} to specified branches")
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parser.add_argument(
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'branches', nargs='+', type=str,
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help='target branches, e.g. specific release branches')
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parser.add_argument(
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'--verbose', default=False, action='store_true',
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help='print out commit hashes and other detailed information'
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)
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parser.add_argument(
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'--uplift', default=False, action='store_true',
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help='uplift l10n commits missing from specified branches (if not specified, dry-run is performed)'
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)
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args = parser.parse_args()
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# remember the current branch, so that we can return to it once we're done.
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current_branch = run_cmd_checked(["git rev-parse --abbrev-ref HEAD"])
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try:
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for branch in args.branches:
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uplift_commits(branch, args.verbose, args.uplift)
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finally:
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# go back to the branch we were on before 'uplift_for_branches' ran
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run_cmd_checked([f"git checkout {current_branch}"])
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