coherence-check-repositories.py
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	#!/usr/bin/env python3


	import sys
	import json


	# -------------------------------------------------------------
	# Application container
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	app = {
	"base_url": "https://<phabricator>",
	"issues": {},
	}


	# -------------------------------------------------------------
	# Analyze Phabricator repositories metadata
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	def analyze_repository(repository):
	id = repository["id"]
	settings_url = f"{app['base_url']}/diffusion/edit/{id}/page/basics/"
	call_sign = repository["fields"]["callsign"]
	short_name = repository["fields"]["shortName"]
	issues = []

	if repository["fields"]["defaultBranch"] == "master":
	issues.append(
	("defaultBranch-master",
	"Has still a master branch. Rename it to main."))

	if not short_name:
	issues.append(
	("shortName-missing",
	f"Short name is missing. Add one here: {settings_url}"))

	if not contains_github_url(repository):
	issues.append(
	("github-missing", "Repository should be mirrored to GitHub"))
	else:
	if short_name:
	github_name = get_github_repository_name(repository)
	if short_name != github_name:
	issues.append(
	("github-invalidName",
	f"Repository is called {short_name} on Phabricator but {github_name} on GitHub."))

	url_id, has_valid_io = check_github_io(repository)
	if not has_valid_io:
	url_url = f"{app['base_url']}/diffusion/{call_sign}/uri/edit/{url_id}/"
	issues.append(
	("github-io-mirror",
	f"GitHub URL isn't configured as a mirror. Edit here: {url_url}"))

	if issues:
	app["issues"][repository["fields"]["callsign"]] = issues


	def analyze_repositories(repositories):
	guess_phabricator_config(repositories)

	for repository in repositories:
	analyze_repository(repository)

	print_issues()


	def guess_phabricator_config(repositories):
	url = guess_phabricator_url(repositories[0])
	if url:
	app["base_url"] = url


	def guess_phabricator_url(repository):
	for uri in repository["attachments"]["uris"]["uris"]:
	if "<base-uri>" in uri["fields"]["uri"]["normalized"]:
	url = uri["fields"]["uri"]["effective"]
	pos_start = url.find("://")
	pos_end = url.find("/diffusion/")
	return "https" + url[pos_start:pos_end]


	def contains_github_url(repository):
	for uri in repository["attachments"]["uris"]["uris"]:
	if 'github.com/' in uri["fields"]["uri"]["normalized"]:
	return True


	def get_github_repository_name(repository):
	for uri in repository["attachments"]["uris"]["uris"]:
	url = uri["fields"]["uri"]["normalized"]
	if 'github.com/' in url:
	# Normalized URL is github.com/<account>/<repo>, take last part
	return url.split("/")[-1]


	def check_github_io(repository):
	for uri in repository["attachments"]["uris"]["uris"]:
	if 'github.com/' in uri["fields"]["uri"]["normalized"]:
	return uri["id"], uri["fields"]["io"]["effective"] == "mirror"


	def print_issues():
	for repository, issues in app["issues"].items():
	print(f"r{repository}")
	for issue in issues:
	print(f"\t[{issue[0]}] {issue[1]}")
	print()


	# -------------------------------------------------------------
	# Application entry point
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


	def run(repositories_path):
	repositories = json.load(open(repositories_path))
	analyze_repositories(repositories["result"]["data"])


	if __name__ == "__main__":
	try:
	repositories_path = sys.argv[1]
	except IndexError:
	print("Usage:", sys.argv[0],
	"<repositories API response file>", file=sys.stderr)
	sys.exit(2)

	run(repositories_path)

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