gstreamer/gitlab/build_manifest.py

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#!/usr/bin/env python3
import argparse
import os
import sys
import subprocess
import urllib.error
import urllib.parse
import urllib.request
import json
from typing import Dict, Tuple, List
# from pprint import pprint
if sys.version_info < (3, 6):
raise SystemExit('Need Python 3.6 or newer')
GSTREAMER_MODULES: List[str] = [
'orc',
'cerbero',
'gst-build',
'gstreamer',
'gst-plugins-base',
'gst-plugins-good',
'gst-plugins-bad',
'gst-plugins-ugly',
'gst-libav',
'gst-devtools',
'gst-docs',
'gst-editing-services',
'gst-omx',
'gst-python',
'gst-rtsp-server',
'gstreamer-sharp',
'gstreamer-vaapi',
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'gst-integration-testsuites',
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'gst-examples',
]
MANIFEST_TEMPLATE: str = """<?xml version="1.0" encoding="UTF-8"?>
<manifest>
<remote fetch="{}" name="user"/>
<remote fetch="https://gitlab.freedesktop.org/gstreamer/" name="origin"/>
{}
</manifest>"""
CERBERO_DEPS_LOGS_TARGETS = (
('cross-ios', 'universal'),
('cross-windows-mingw', 'x86'),
('cross-windows-mingw', 'x86_64'),
('cross-android', 'universal'),
('fedora', 'x86_64'),
('macos', 'x86_64'),
('windows-msvc', 'x86_64'),
)
# Disallow git prompting for a username/password
os.environ['GIT_TERMINAL_PROMPT'] = '0'
def git(*args, repository_path='.'):
return subprocess.check_output(["git"] + list(args), cwd=repository_path).decode()
def get_cerbero_last_build_info (branch : str):
# Fetch the deps log for all (distro, arch) targets
all_commits = {}
for distro, arch in CERBERO_DEPS_LOGS_TARGETS:
url = f'https://artifacts.gstreamer-foundation.net/cerbero-deps/{branch}/{distro}/{arch}/cerbero-deps.log'
print(f'Fetching {url}')
try:
req = urllib.request.Request(url)
resp = urllib.request.urlopen(req);
deps = json.loads(resp.read())
except urllib.error.URLError as e:
print(f'WARNING: Failed to GET {url}: {e!s}')
continue
for dep in deps:
commit = dep['commit']
if commit not in all_commits:
all_commits[commit] = []
all_commits[commit].append((distro, arch))
# Fetch the cerbero commit that has the most number of caches
best_commit = None
newest_commit = None
max_caches = 0
total_caches = len(CERBERO_DEPS_LOGS_TARGETS)
for commit, targets in all_commits.items():
if newest_commit is None:
newest_commit = commit
have_caches = len(targets)
# If this commit has caches for all targets, just use it
if have_caches == total_caches:
best_commit = commit
break
# Else, try to find the commit with the most caches
if have_caches > max_caches:
max_caches = have_caches
best_commit = commit
if newest_commit is None:
print('WARNING: No deps logs were found, will build from scratch')
if best_commit != newest_commit:
print(f'WARNING: Cache is not up-to-date for commit {newest_commit}, using commit {best_commit} instead')
return best_commit
def get_branch_info(module: str, namespace: str, branch: str) -> Tuple[str, str]:
try:
res = git('ls-remote', f'https://gitlab.freedesktop.org/{namespace}/{module}.git', branch)
except subprocess.CalledProcessError:
return None, None
if not res:
return None, None
# Special case cerbero to avoid cache misses
if module == 'cerbero':
sha = get_cerbero_last_build_info(branch)
if sha is not None:
return sha, sha
lines = res.split('\n')
for line in lines:
if line.endswith('/' + branch):
try:
sha, refname = line.split('\t')
except ValueError:
continue
return refname.strip(), sha
return None, None
def find_repository_sha(module: str, branchname: str) -> Tuple[str, str, str]:
namespace: str = os.environ["CI_PROJECT_NAMESPACE"]
ups_branch: str = os.getenv('GST_UPSTREAM_BRANCH', default='master')
if module == "orc":
ups_branch = os.getenv('ORC_UPSTREAM_BRANCH', default='master')
if module == os.environ['CI_PROJECT_NAME']:
return 'user', branchname, os.environ['CI_COMMIT_SHA']
if branchname != ups_branch:
remote_refname, sha = get_branch_info(module, namespace, branchname)
if sha is not None:
return 'user', remote_refname, sha
# Check upstream project for a branch
remote_refname, sha = get_branch_info(module, 'gstreamer', ups_branch)
if sha is not None:
return 'origin', remote_refname, sha
# This should never occur given the upstream fallback above
print(f"Could not find anything for {module}:{branchname}")
print("If something reaches that point, please file a bug")
print("https://gitlab.freedesktop.org/gstreamer/gst-ci/issues")
assert False
# --- Unit tests --- #
# Basically, pytest will happily let a test mutate a variable, and then run
# the next tests one the same environment without reset the vars.
def preserve_ci_vars(func):
"""Preserve the original CI Variable values"""
def wrapper():
try:
url = os.environ["CI_PROJECT_URL"]
user = os.environ["CI_PROJECT_NAMESPACE"]
except KeyError:
url = "invalid"
user = ""
private = os.getenv("READ_PROJECTS_TOKEN", default=None)
if not private:
os.environ["READ_PROJECTS_TOKEN"] = "FOO"
func()
os.environ["CI_PROJECT_URL"] = url
os.environ["CI_PROJECT_NAMESPACE"] = user
if private:
os.environ["READ_PROJECTS_TOKEN"] = private
# if it was set after
elif os.getenv("READ_PROJECTS_TOKEN", default=None):
del os.environ["READ_PROJECTS_TOKEN"]
return wrapper
@preserve_ci_vars
def test_find_repository_sha():
os.environ["CI_PROJECT_NAME"] = "some-random-project"
os.environ["CI_PROJECT_URL"] = "https://gitlab.freedesktop.org/gstreamer/gst-plugins-good"
os.environ["CI_PROJECT_NAMESPACE"] = "alatiera"
os.environ["GST_UPSTREAM_BRANCH"] = "master"
del os.environ["READ_PROJECTS_TOKEN"]
# This should find the repository in the user namespace
remote, refname, git_ref = find_repository_sha("gst-plugins-good", "1.2")
assert remote == "user"
assert git_ref == "08ab260b8a39791e7e62c95f4b64fd5b69959325"
assert refname == "refs/heads/1.2"
# This should fallback to upstream master branch since no matching branch was found
remote, refname, git_ref = find_repository_sha("gst-plugins-good", "totally-valid-branch-name")
assert remote == "origin"
assert refname == "refs/heads/master"
os.environ["CI_PROJECT_NAME"] = "the_project"
os.environ["CI_COMMIT_SHA"] = "MySha"
remote, refname, git_ref = find_repository_sha("the_project", "whatever")
assert remote == "user"
assert git_ref == "MySha"
assert refname == "whatever"
@preserve_ci_vars
def test_get_project_branch():
os.environ["CI_PROJECT_NAME"] = "some-random-project"
os.environ["CI_COMMIT_SHA"] = "dwbuiw"
os.environ["CI_PROJECT_URL"] = "https://gitlab.freedesktop.org/gstreamer/gst-plugins-good"
os.environ["CI_PROJECT_NAMESPACE"] = "nowaythisnamespaceexists_"
del os.environ["READ_PROJECTS_TOKEN"]
os.environ['GST_UPSTREAM_BRANCH'] = '1.12'
remote, refname, twelve = find_repository_sha('gst-plugins-good', '1.12')
assert twelve is not None
assert remote == 'origin'
assert refname == "refs/heads/1.12"
os.environ['GST_UPSTREAM_BRANCH'] = '1.14'
remote, refname, fourteen = find_repository_sha('gst-plugins-good', '1.14')
assert fourteen is not None
assert remote == 'origin'
assert refname == "refs/heads/1.14"
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("--self-update", action="store_true", default=False)
parser.add_argument(dest="output", default='manifest.xml', nargs='?')
options = parser.parse_args()
current_branch: str = os.environ['CI_COMMIT_REF_NAME']
user_remote_url: str = os.path.dirname(os.environ['CI_PROJECT_URL'])
if not user_remote_url.endswith('/'):
user_remote_url += '/'
if options.self_update:
remote, remote_refname, sha = find_repository_sha("gst-ci", current_branch)
if remote == 'user':
remote = user_remote_url + 'gst-ci'
else:
remote = "https://gitlab.freedesktop.org/gstreamer/gst-ci"
git('fetch', remote, remote_refname)
git('checkout', '--detach', sha)
sys.exit(0)
projects: str = ''
for module in GSTREAMER_MODULES:
print(f"Checking {module}:", end=' ')
remote, refname, revision = find_repository_sha(module, current_branch)
print(f"remote '{remote}', refname: '{refname}', revision: '{revision}'")
projects += f" <project path=\"{module}\" name=\"{module}.git\" remote=\"{remote}\" revision=\"{revision}\" refname=\"{refname}\" />\n"
with open(options.output, mode='w') as manifest:
print(MANIFEST_TEMPLATE.format(user_remote_url, projects), file=manifest)