gstreamer/scripts/move_mrs_to_monorepo.py

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#!/usr/bin/env python3
from urllib.parse import urlparse
from contextlib import contextmanager
import os
import re
import sys
try:
import gitlab
except ModuleNotFoundError:
print("========================================================================", file=sys.stderr)
print("ERROR: Install python-gitlab with `python3 -m pip install python-gitlab python-dateutil`", file=sys.stderr)
print("========================================================================", file=sys.stderr)
sys.exit(1)
try:
from dateutil import parser as dateparse
except ModuleNotFoundError:
print("========================================================================", file=sys.stderr)
print("ERROR: Install dateutil with `python3 -m pip install dateutil`", file=sys.stderr)
print("========================================================================", file=sys.stderr)
sys.exit(1)
import argparse
import requests
import subprocess
ROOT_DIR = os.path.realpath(os.path.join(os.path.dirname(__file__), ".."))
URL = "https://gitlab.freedesktop.org/"
SIGN_IN_URL = URL + 'sign_in'
LOGIN_URL = URL + 'users/sign_in'
LOGIN_URL_LDAP = URL + '/users/auth/ldapmain/callback'
MONOREPO_REMOTE_NAME = 'origin'
NAMESPACE = "gstreamer"
MONOREPO_NAME = 'gstreamer'
MONOREPO_REMOTE = URL + f'{NAMESPACE}/{MONOREPO_NAME}'
MONOREPO_BRANCH = 'main'
PING_SIGN = '@'
MOVING_NAMESPACE = NAMESPACE
PARSER = argparse.ArgumentParser(
description="Move merge request from old GStreamer module to the new"
"GStreamer 'monorepo'.\n"
" All your pending merge requests from all GStreamer modules will"
" be moved the the mono repository."
)
PARSER.add_argument("--skip-branch", action="store", nargs="*",
help="Ignore MRs for branches which match those names.", dest="skipped_branches")
PARSER.add_argument("--skip-on-failure", action="store_true", default=False)
PARSER.add_argument("--dry-run", "-n", action="store_true", default=False)
PARSER.add_argument("--use-branch-if-exists",
action="store_true", default=False)
PARSER.add_argument("--list-mrs-only", action="store_true", default=False)
PARSER.add_argument(
"-c",
"--config-file",
action="append",
dest='config_files',
help="Configuration file to use. Can be used multiple times.",
required=False,
)
PARSER.add_argument(
"-g",
"--gitlab",
help=(
"Which configuration section should "
"be used. If not defined, the default selection "
"will be used."
),
required=False,
)
PARSER.add_argument(
"-m",
"--module",
help="GStreamer module to move MRs for. All if none specified. Can be used multiple times.",
dest='modules',
action="append",
required=False,
)
PARSER.add_argument(
"-mr",
"--mr-url",
default=None,
type=str,
help=(
"URL of the MR to work on."
),
required=False,
)
GST_PROJECTS = [
'gstreamer',
'gst-plugins-base',
'gst-plugins-good',
'gst-plugins-bad',
'gst-plugins-ugly',
'gst-libav',
'gst-rtsp-server',
'gstreamer-vaapi',
'gstreamer-sharp',
'gst-python',
'gst-omx',
'gst-editing-services',
'gst-devtools',
'gst-docs',
'gst-examples',
'gst-build',
'gst-ci',
]
GST_PROJECTS_ID = {
'gstreamer': 1357,
'gst-rtsp-server': 1362,
'gstreamer-vaapi': 1359,
'gstreamer-sharp': 1358,
'gst-python': 1355,
'gst-plugins-ugly': 1354,
'gst-plugins-good': 1353,
'gst-plugins-base': 1352,
'gst-plugins-bad': 1351,
'gst-omx': 1350,
'gst-libav': 1349,
'gst-integration-testsuites': 1348,
'gst-examples': 1347,
'gst-editing-services': 1346,
'gst-docs': 1345,
'gst-devtools': 1344,
'gst-ci': 1343,
'gst-build': 1342,
}
# We do not want to deal with LFS
os.environ["GIT_LFS_SKIP_SMUDGE"] = "1"
log_depth = [] # type: T.List[str]
@contextmanager
def nested(name=''):
global log_depth
log_depth.append(name)
try:
yield
finally:
log_depth.pop()
def bold(text: str):
return f"\033[1m{text}\033[0m"
def green(text: str):
return f"\033[1;32m{text}\033[0m"
def red(text: str):
return f"\033[1;31m{text}\033[0m"
def yellow(text: str):
return f"\033[1;33m{text}\033[0m"
def fprint(msg, nested=True):
if log_depth:
prepend = log_depth[-1] + ' | ' if nested else ''
else:
prepend = ''
print(prepend + msg, end="")
sys.stdout.flush()
class GstMRMover:
def __init__(self):
self.modules = []
self.gitlab = None
self.config_files = []
self.gl = None
self.mr = None
self.mr_url = None
self.all_projects = []
self.skipped_branches = []
self.git_rename_limit = None
self.skip_on_failure = None
self.dry_run = False
def connect(self):
fprint("Logging into gitlab...")
if self.gitlab:
gl = gitlab.Gitlab.from_config(self.gitlab, self.config_files)
fprint(f"{green(' OK')}\n", nested=False)
return gl
gitlab_api_token = os.environ.get('GITLAB_API_TOKEN')
if gitlab_api_token:
gl = gitlab.Gitlab(URL, private_token=gitlab_api_token)
fprint(f"{green(' OK')}\n", nested=False)
return gl
session = requests.Session()
sign_in_page = session.get(SIGN_IN_URL).content.decode()
for line in sign_in_page.split('\n'):
m = re.search('name="authenticity_token" value="([^"]+)"', line)
if m:
break
token = None
if m:
token = m.group(1)
if not token:
fprint(f"{red('Unable to find the authenticity token')}\n")
sys.exit(1)
for data, url in [
({'user[login]': 'login_or_email',
'user[password]': 'SECRET',
'authenticity_token': token}, LOGIN_URL),
({'username': 'login_or_email',
'password': 'SECRET',
'authenticity_token': token}, LOGIN_URL_LDAP)]:
r = session.post(url, data=data)
if r.status_code != 200:
continue
try:
gl = gitlab.Gitlab(URL, api_version=4, session=session)
gl.auth()
except gitlab.exceptions.GitlabAuthenticationError as e:
continue
return gl
sys.exit(bold(f"{red('FAILED')}.\n\nPlease go to:\n\n"
' https://gitlab.freedesktop.org/-/profile/personal_access_tokens\n\n'
f'and generate a token {bold("with read/write access to all but the registry")},'
' then set it in the "GITLAB_API_TOKEN" environment variable:"'
f'\n\n $ GITLAB_API_TOKEN=<your token> {" ".join(sys.argv)}\n'))
def git(self, *args, can_fail=False, interaction_message=None, call=False, revert_operation=None):
cwd = ROOT_DIR
retry = True
while retry:
retry = False
try:
if not call:
try:
return subprocess.check_output(["git"] + list(args), cwd=cwd,
stdin=subprocess.DEVNULL,
stderr=subprocess.STDOUT).decode()
except subprocess.CalledProcessError:
if not can_fail:
fprint(
f"\n\n{bold(red('ERROR'))}: `git {' '.join(args)}` failed" + "\n", nested=False)
raise
else:
subprocess.call(["git"] + list(args), cwd=cwd)
return "All good"
except Exception as e:
if interaction_message:
if self.skip_on_failure:
return "SKIP"
output = getattr(e, "output", b"")
if output is not None:
out = output.decode()
else:
out = "????"
fprint(f"\n```"
f"\n{out}\n"
f"Entering a shell in {cwd} to fix:\n\n"
f" {bold(interaction_message)}\n\n"
f"You should then exit with the following codes:\n\n"
f" - {bold('`exit 0`')}: once you have fixed the problem and we can keep moving the merge request\n"
f" - {bold('`exit 1`')}: {bold('retry')}: once you have let the repo in a state where the operation should be to retried\n"
f" - {bold('`exit 2`')}: to skip that merge request\n"
f" - {bold('`exit 3`')}: stop the script and abandon moving your MRs\n"
"\n```\n", nested=False)
try:
if os.name == 'nt':
shell = os.environ.get(
"COMSPEC", r"C:\WINDOWS\system32\cmd.exe")
else:
shell = os.environ.get(
"SHELL", os.path.realpath("/bin/sh"))
subprocess.check_call(shell, cwd=cwd)
except subprocess.CalledProcessError as e:
if e.returncode == 1:
retry = True
continue
elif e.returncode == 2:
if revert_operation:
self.git(*revert_operation, can_fail=True)
return "SKIP"
elif e.returncode == 3:
if revert_operation:
self.git(*revert_operation, can_fail=True)
sys.exit(3)
except Exception:
# Result of subshell does not really matter
pass
return "User fixed it"
if can_fail:
return "Failed but we do not care"
raise e
def cleanup_args(self):
if self.mr_url:
self.modules.append(GST_PROJECTS[0])
(namespace, module, _, _, mr) = os.path.normpath(urlparse(self.mr_url).path).split('/')[1:]
self.modules.append(module)
self.mr = int(mr)
elif not self.modules:
if self.mr:
sys.exit(f"{red(f'Merge request #{self.mr} specified without module')}\n\n"
f"{bold(' -> Use `--module` to specify which module the MR is from.')}")
self.modules = GST_PROJECTS
else:
VALID_PROJECTS = GST_PROJECTS[1:]
for m in self.modules:
if m not in VALID_PROJECTS:
projects = '\n- '.join(VALID_PROJECTS)
sys.exit(
f"{red(f'Unknown module {m}')}\nModules are:\n- {projects}")
if self.mr and len(self.modules) > 1:
sys.exit(f"{red(f'Merge request #{self.mr} specified but several modules where specified')}\n\n"
f"{bold(' -> Use `--module` only once to specify an merge request.')}")
self.modules.append(GST_PROJECTS[0])
def run(self):
self.cleanup_args()
self.gl = self.connect()
self.gl.auth()
# Skip pre-commit hooks when migrating. Some users may have a
# different version of gnu indent and that can lead to cherry-pick
# failing.
os.environ["GST_DISABLE_PRE_COMMIT_HOOKS"] = "1"
try:
prevbranch = self.git(
"rev-parse", "--abbrev-ref", "HEAD", can_fail=True).strip()
except Exception:
fprint(bold(yellow("Not on a branch?\n")), indent=False)
prevbranch = None
try:
self.setup_repo()
from_projects, to_project = self.fetch_projects()
with nested(' '):
self.move_mrs(from_projects, to_project)
finally:
if self.git_rename_limit is not None:
self.git("config", "merge.renameLimit",
str(self.git_rename_limit))
if prevbranch:
fprint(f'Back to {prevbranch}\n')
self.git("checkout", prevbranch)
def fetch_projects(self):
fprint("Fetching projects... ")
self.all_projects = [proj for proj in self.gl.projects.list(
membership=1, all=True) if proj.name in self.modules]
try:
self.user_project, = [p for p in self.all_projects
if p.namespace['path'] == self.gl.user.username
and p.name == MONOREPO_NAME]
except ValueError:
fprint(
f"{red(f'ERROR')}\n\nCould not find repository {self.gl.user.name}/{MONOREPO_NAME}")
fprint(f"{red(f'Got to https://gitlab.freedesktop.org/gstreamer/gstreamer/ and create a fork so we can move your Merge requests.')}")
sys.exit(1)
fprint(f"{green(' OK')}\n", nested=False)
from_projects = []
user_projects_name = [proj.name for proj in self.all_projects if proj.namespace['path']
== self.gl.user.username and proj.name in GST_PROJECTS]
for project, id in GST_PROJECTS_ID.items():
if project not in user_projects_name or project == 'gstreamer':
continue
projects = [p for p in self.all_projects if p.id == id]
if not projects:
upstream_project = self.gl.projects.get(id)
else:
upstream_project, = projects
assert project
from_projects.append(upstream_project)
fprint(f"\nMoving MRs from:\n")
fprint(f"----------------\n")
for p in from_projects:
fprint(f" - {bold(p.path_with_namespace)}\n")
to_project = self.gl.projects.get(GST_PROJECTS_ID['gstreamer'])
fprint(f"To: {bold(to_project.path_with_namespace)}\n\n")
return from_projects, to_project
def recreate_mr(self, project, to_project, mr):
branch = f"{project.name}-{mr.source_branch}"
if not self.create_branch_for_mr(branch, project, mr):
return None
description = f"**Copied from {URL}/{project.path_with_namespace}/-/merge_requests/{mr.iid}**\n\n{mr.description}"
title = mr.title
if ':' not in mr.title:
title = f"{project.name}: {mr.title}"
new_mr_dict = {
'source_branch': branch,
'allow_collaboration': True,
'remove_source_branch': True,
'target_project_id': to_project.id,
'target_branch': MONOREPO_BRANCH,
'title': title,
'labels': mr.labels,
'description': description,
}
try:
fprint(f"-> Recreating MR '{bold(mr.title)}'...")
if self.dry_run:
fprint(f"\nDry info:\n{new_mr_dict}\n")
else:
new_mr = self.user_project.mergerequests.create(new_mr_dict)
fprint(f"{green(' OK')}\n", nested=False)
except gitlab.exceptions.GitlabCreateError as e:
fprint(f"{yellow('SKIPPED')} (An MR already exists)\n", nested=False)
return None
fprint(f"-> Adding discussings from MR '{mr.title}'...")
if self.dry_run:
fprint(f"{green(' OK')}\n", nested=False)
return None
new_mr_url = f"{URL}/{to_project.path_with_namespace}/-/merge_requests/{new_mr.iid}"
for issue in mr.closes_issues():
obj = {'body': f'Fixing MR moved to: {new_mr_url}'}
issue.discussions.create(obj)
mr_url = f"{URL}/{project.path_with_namespace}/-/merge_requests/{mr.iid}"
for discussion in mr.discussions.list():
# FIXME notes = [n for n in discussion.attributes['notes'] if n['type'] is not None]
notes = [n for n in discussion.attributes['notes']]
if not notes:
continue
new_discussion = None
for note in notes:
note = discussion.notes.get(note['id'])
note_url = f"{mr_url}#note_{note.id}"
when = dateparse.parse(
note.created_at).strftime('on %d, %b %Y')
body = f"**{note.author['name']} - {PING_SIGN}{note.author['username']} wrote [here]({note_url})** {when}:\n\n"
body += '\n'.join([line for line in note.body.split('\n')])
obj = {
'body': body,
'type': note.type,
'resolvable': note.resolvable,
}
if new_discussion:
new_discussion.notes.create(obj)
else:
new_discussion = new_mr.discussions.create(obj)
if not note.resolvable or note.resolved:
new_discussion.resolved = True
new_discussion.save()
fprint(f"{green(' OK')}\n", nested=False)
print(f"New MR available at: {bold(new_mr_url)}\n")
return new_mr
def push_branch(self, branch):
fprint(
f"-> Pushing branch {branch} to remote {self.gl.user.username}...")
if self.git("push", "--no-verify", self.gl.user.username, branch,
interaction_message=f"pushing {branch} to {self.gl.user.username} with:\n "
f" `$git push {self.gl.user.username} {branch}`") == "SKIP":
fprint(yellow("'SKIPPED' (couldn't push)"), nested=False)
return False
fprint(f"{green(' OK')}\n", nested=False)
return True
def create_branch_for_mr(self, branch, project, mr):
remote_name = project.name + '-' + self.gl.user.username
remote_branch = f"{MONOREPO_REMOTE_NAME}/{MONOREPO_BRANCH}"
if self.use_branch_if_exists:
try:
self.git("checkout", branch)
self.git("show", remote_branch + "..", call=True)
if self.dry_run:
fprint("Dry run... not creating MR")
return True
cont = input('\n Create MR [y/n]? ')
if cont.strip().lower() != 'y':
fprint("Cancelled")
return False
return self.push_branch(branch)
except subprocess.CalledProcessError as e:
pass
self.git("remote", "add", remote_name,
f"{URL}{self.gl.user.username}/{project.name}.git", can_fail=True)
self.git("fetch", remote_name)
if self.git("checkout", remote_branch, "-b", branch,
interaction_message=f"checking out branch with `git checkout {remote_branch} -b {branch}`") == "SKIP":
fprint(
bold(f"{red('SKIPPED')} (couldn't checkout)\n"), nested=False)
return False
# unset upstream to avoid to push to main (ie push.default = tracking)
self.git("branch", branch, "--unset-upstream")
for commit in reversed([c for c in mr.commits()]):
if self.git("cherry-pick", commit.id,
interaction_message=f"cherry-picking {commit.id} onto {branch} with:\n "
f" `$ git cherry-pick {commit.id}`",
revert_operation=["cherry-pick", "--abort"]) == "SKIP":
fprint(
f"{yellow('SKIPPED')} (couldn't cherry-pick).", nested=False)
return False
self.git("show", remote_branch + "..", call=True)
if self.dry_run:
fprint("Dry run... not creating MR\n")
return True
cont = input('\n Create MR [y/n]? ')
if cont.strip().lower() != 'y':
fprint(f"{red('Cancelled')}\n", nested=False)
return False
return self.push_branch(branch)
def move_mrs(self, from_projects, to_project):
failed_mrs = []
found_mr = None
for from_project in from_projects:
with nested(f'{bold(from_project.path_with_namespace)}'):
fprint(f'Fetching mrs')
mrs = [mr for mr in from_project.mergerequests.list(
all=True, author_id=self.gl.user.id) if mr.author['username'] == self.gl.user.username and mr.state == "opened"]
if not mrs:
fprint(f"{yellow(' None')}\n", nested=False)
continue
fprint(f"{green(' DONE')}\n", nested=False)
for mr in mrs:
if self.mr:
if self.mr != mr.iid:
continue
found_mr = True
fprint(
f'Moving {mr.source_branch} "{mr.title}": {URL}{from_project.path_with_namespace}/merge_requests/{mr.iid}... ')
if mr.source_branch in self.skipped_branches:
print(f"{yellow('SKIPPED')} (blacklisted branch)")
failed_mrs.append(
f"{URL}{from_project.path_with_namespace}/merge_requests/{mr.iid}")
continue
if self.list_mrs_only:
fprint("\n"f"List only: {yellow('SKIPPED')}\n")
continue
with nested(f'{bold(from_project.path_with_namespace)}: {mr.iid}'):
new_mr = self.recreate_mr(from_project, to_project, mr)
if not new_mr:
if not self.dry_run:
failed_mrs.append(
f"{URL}{from_project.path_with_namespace}/merge_requests/{mr.iid}")
else:
fprint(f"{green(' OK')}\n", nested=False)
self.close_mr(from_project, to_project, mr, new_mr)
fprint(
f"\n{yellow('DONE')} with {from_project.path_with_namespace}\n\n", nested=False)
if self.mr and not found_mr:
sys.exit(
bold(red(f"\n==> Couldn't find MR {self.mr} in {self.modules[0]}\n")))
for mr in failed_mrs:
fprint(f"Didn't move MR: {mr}\n")
def close_mr(self, project, to_project, mr, new_mr):
if new_mr:
new_mr_url = f"{URL}/{to_project.path_with_namespace}/-/merge_requests/{new_mr.iid}"
else:
new_mr_url = None
mr_url = f"{URL}/{project.path_with_namespace}/-/merge_requests/{mr.iid}"
cont = input(f'\n Close old MR {mr_url} "{bold(mr.title)}" ? [y/n]')
if cont.strip().lower() != 'y':
fprint(f"{yellow('Not closing old MR')}\n")
else:
obj = None
if new_mr_url:
obj = {'body': f"Moved to: {new_mr_url}"}
else:
ret = input(
f"Write a comment to add while closing MR {mr.iid} '{bold(mr.title)}':\n\n").strip()
if ret:
obj = {'body': ret}
if self.dry_run:
fprint(f"{bold('Dry run, not closing')}\n", nested=False)
else:
if obj:
mr.discussions.create(obj)
mr.state_event = 'close'
mr.save()
fprint(
f'Old MR {mr_url} "{bold(mr.title)}" {yellow("CLOSED")}\n')
def setup_repo(self):
fprint(f"Setting up '{bold(ROOT_DIR)}'...")
try:
out = self.git("status", "--porcelain")
if out:
fprint("\n" + red('Git repository is not clean:')
+ "\n```\n" + out + "\n```\n")
sys.exit(1)
except Exception as e:
exit(
f"Git repository{ROOT_DIR} is not clean. Clean it up before running {sys.argv[0]}\n ({e})")
self.git('remote', 'add', MONOREPO_REMOTE_NAME,
MONOREPO_REMOTE, can_fail=True)
self.git('fetch', MONOREPO_REMOTE_NAME)
self.git('remote', 'add', self.gl.user.username,
f"git@gitlab.freedesktop.org:{self.gl.user.username}/gstreamer.git", can_fail=True)
self.git('fetch', self.gl.user.username,
interaction_message=f"Setup your fork of {URL}gstreamer/gstreamer as remote called {self.gl.user.username}")
fprint(f"{green(' OK')}\n", nested=False)
try:
git_rename_limit = int(self.git("config", "merge.renameLimit"))
except subprocess.CalledProcessError:
git_rename_limit = 0
if int(git_rename_limit) < 999999:
self.git_rename_limit = git_rename_limit
fprint(
"-> Setting git rename limit to 999999 so we can properly cherry-pick between repos\n")
self.git("config", "merge.renameLimit", "999999")
def main():
mover = GstMRMover()
PARSER.parse_args(namespace=mover)
mover.run()
if __name__ == '__main__':
main()