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# Copyright (c) 2025, 2026, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# The Universal Permissive License (UPL), Version 1.0
#
# Subject to the condition set forth below, permission is hereby granted to any
# person obtaining a copy of this software, associated documentation and/or
# data (collectively the "Software"), free of charge and under any and all
# copyright rights in the Software, and any and all patent rights owned or
# freely licensable by each licensor hereunder covering either (i) the
# unmodified Software as contributed to or provided by such licensor, or (ii)
# the Larger Works (as defined below), to deal in both
#
# (a) the Software, and
#
# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
# one is included with the Software each a "Larger Work" to which the Software
# is contributed by such licensors),
#
# without restriction, including without limitation the rights to copy, create
# derivative works of, display, perform, and distribute the Software and make,
# use, sell, offer for sale, import, export, have made, and have sold the
# Software and the Larger Work(s), and to sublicense the foregoing rights on
# either these or other terms.
#
# This license is subject to the following condition:
#
# The above copyright notice and either this complete permission notice or at a
# minimum a reference to the UPL must be included in all copies or substantial
# portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#!/usr/bin/env python3
import argparse
import fnmatch
import json
import os
import re
import shlex
import subprocess
import sys
from dataclasses import dataclass
from functools import cached_property, total_ordering
from typing import Any
DEFAULT_ENV = {
"CI": "true",
"PYTHONIOENCODING": "utf-8",
"GITHUB_CI": "true"
}
# If any of these terms are in the job json, they do not run in public
# infrastructure
JOB_EXCLUSION_TERMS = (
"enterprise",
"corporate-compliance",
# Jobs failing in GitHub Actions:buffer overflow, out of memory
"python-svm-unittest",
"cpython-gate",
"darwin",
)
DOWNLOADS_LINKS = {
"GRADLE_JAVA_HOME": "https://download.oracle.com/java/{major_version}/latest/jdk-{major_version}_{os}-{arch_short}_bin{ext}",
"ECLIPSE": "https://www.eclipse.org/downloads/download.php?file=/eclipse/downloads/drops4/R-4.26-202211231800/eclipse-SDK-4.26-linux-gtk-x86_64.tar.gz"
}
# Github Runners OSS
OSS = {
"ubuntu-latest": ["linux", "amd64"],
"ubuntu-24.04-arm": ["linux", "aarch64"],
"windows-latest": ["windows", "amd64"]
}
# Override unavailable Python versions for some OS/Arch / job name combinations
PYTHON_VERSIONS = {
"ubuntu-24.04-arm": "3.12.8",
"ubuntu-latest": "3.12.8",
"style-gate": "3.8.12",
"style-ecj-gate": "3.8.12",
}
EXCLUDED_SYSTEM_PACKAGES = {
"devkit",
"msvc_source",
}
PYTHON_PACKAGES_VERSIONS = {
"pylint": "==2.4",
"astroid": "==2.4"
}
@dataclass
class Artifact:
name: str
pattern: str
@total_ordering
class Job:
def __init__(self, job: dict[str, Any]):
self.job = job
@cached_property
def runs_on(self) -> str:
capabilities = self.job.get("capabilities", [])
for os, caps in OSS.items():
if all(required in capabilities for required in caps): return os
return "ubuntu-latest"
@cached_property
def name(self) -> str:
return self.job["name"]
@cached_property
def targets(self) -> list[str]:
return self.job.get("targets", [])
@cached_property
def env(self) -> dict[str, str]:
environment = self.job.get("environment", {}) | DEFAULT_ENV
if self.runs_on == "windows-latest":
def _to_windows_env_format(s: str) -> str:
# Replace ${VAR} and $VAR with %VAR%
s = re.sub(r"\$\{([A-Za-z_][A-Za-z0-9_]*)\}", r"%\1%", s)
s = re.sub(r"\$([A-Za-z_][A-Za-z0-9_]*)", r"%\1%", s)
return s
environment = {k: _to_windows_env_format(v) for k, v in environment.items()}
return environment
@cached_property
def mx_version(self) -> str | None:
for k, v in self.job.get("packages", {}).items():
if k == "mx":
return v.strip("=<>~")
@cached_property
def python_version(self) -> str | None:
python_version = None
for k, v in self.job.get("packages", {}).items():
if k == "python3":
python_version = v.strip("=<>~")
for k, v in self.job.get("downloads", {}).items():
if k == "PYTHON3_HOME":
python_version = v.get("version", python_version)
if "MX_PYTHON" in self.env:
del self.env["MX_PYTHON"]
if "MX_PYTHON_VERSION" in self.env:
del self.env["MX_PYTHON_VERSION"]
for key, version in PYTHON_VERSIONS.items():
if self.runs_on == key or key in self.name:
python_version = version
return python_version
@cached_property
def system_packages(self) -> list[str]:
# TODO: support more packages
system_packages = []
for k, _ in self.job.get("packages", {}).items():
if k in ["mx", "python3"]:
continue
if k.startswith("pip:"):
continue
elif k.startswith("00:") or k.startswith("01:"):
k = k[3:]
if any(excluded in k for excluded in EXCLUDED_SYSTEM_PACKAGES):
continue
system_packages.append(f"'{k}'" if self.runs_on != "windows-latest" else f"{k}")
return system_packages
@cached_property
def python_packages(self) -> list[str]:
python_packages = [f"{key}{value}" for key, value in PYTHON_PACKAGES_VERSIONS.items()]
for k, v in self.job.get("packages", {}).items():
if k.startswith("pip:"):
key = k[4:]
if key in PYTHON_PACKAGES_VERSIONS: continue
python_packages.append(f"{key}{v}")
return [f"'{pkg}'" if self.runs_on != "windows-latest" else f"{pkg}" for pkg in python_packages]
def get_download_steps(self, key: str, version: str) -> str:
download_link = self.get_download_link(key, version)
filename = download_link.split('/')[-1]
if self.runs_on == "windows-latest":
return (f"""
Invoke-WebRequest -Uri {download_link} -OutFile {filename}
Expand-Archive -Path {filename} -DestinationPath .
$dirname = (Get-ChildItem -Directory | Select-Object -First 1).Name
Add-Content $env:GITHUB_ENV "{key}=$(Resolve-Path $dirname)"
""")
return (f"wget -q '{download_link}' -O {filename} && "
f"dirname=$(tar -tzf {filename} | head -1 | cut -f1 -d '/') && "
f"tar -xzf {filename} && "
f'echo {key}=$(realpath "$dirname") >> $GITHUB_ENV')
def get_download_link(self, key: str, version: str) -> str:
os, arch = OSS[self.runs_on]
major_version = version.split(".")[0]
extension = ".tar.gz" if not os == "windows" else ".zip"
os = os if os != "darwin" else "macos"
arch_short = {"amd64": "x64", "aarch64": "aarch64"}[arch]
vars = {
"major_version": major_version,
"os": os,
"arch": arch,
"arch_short": arch_short,
"ext": extension,
}
return DOWNLOADS_LINKS[key].format(**vars)
@cached_property
def downloads(self) -> list[str]:
downloads = []
for k, download_info in self.job.get("downloads", {}).items():
if k in DOWNLOADS_LINKS and download_info["version"]:
downloads.append(self.get_download_steps(k, download_info["version"]))
return downloads
@staticmethod
def common_glob(strings: list[str]) -> str:
assert strings
if len(strings) == 1:
return strings[0]
prefix = strings[0]
for s in strings[1:]:
i = 0
while i < len(prefix) and i < len(s) and prefix[i] == s[i]:
i += 1
prefix = prefix[:i]
if not prefix:
break
suffix = strings[0][len(prefix):]
for s in strings[1:]:
i = 1
while i <= len(suffix) and i <= len(s) and suffix[-i] == s[-i]:
i += 1
if i == 1:
suffix = ""
break
suffix = suffix[-(i-1):]
return f"{prefix}*{suffix}"
@cached_property
def upload_artifact(self) -> Artifact | None:
if artifacts := self.job.get("publishArtifacts", []):
assert len(artifacts) == 1
dir = artifacts[0].get("dir", ".")
patterns = artifacts[0].get("patterns", ["*"])
return Artifact(
artifacts[0]["name"],
" ".join([os.path.normpath(os.path.join(dir, p)) for p in patterns])
)
return None
@cached_property
def download_artifact(self) -> Artifact | None:
if artifacts := self.job.get("requireArtifacts", []):
pattern = self.common_glob([a["name"] for a in artifacts])
return Artifact(pattern, os.path.normpath(artifacts[0].get("dir", ".")))
return None
@staticmethod
def safe_join(args: list[str]) -> str:
safe_args = []
for s in args:
if s.startswith("$(") and s.endswith(")"):
safe_args.append(s)
else:
safe_args.append(shlex.quote(s))
return " ".join(safe_args)
@staticmethod
def flatten_command(args: list[str | list[str]]) -> list[str]:
flattened_args = []
for s in args:
if isinstance(s, list):
flattened_args.append(f"$( {shlex.join(s)} )")
else:
out = re.sub(r"\$\{([A-Z0-9_]+)\}", r"$\1", s).replace("'", "")
flattened_args.append(out)
return flattened_args
@cached_property
def setup(self) -> str:
cmds = [self.flatten_command(step) for step in self.job.get("setup", [])]
return "\n".join(self.safe_join(s) for s in cmds)
@cached_property
def run(self) -> str:
cmds = [self.flatten_command(step) for step in self.job.get("run", [])]
return "\n".join(self.safe_join(s) for s in cmds)
@cached_property
def logs(self) -> str:
return "\n".join(os.path.normpath(p) for p in self.job.get("logs", []))
def to_dict(self):
"""
This is the interchange with the YAML file defining the Github jobs, so here
is where we must match the strings and expectations of the Github workflow.
"""
return {
"name": self.name,
"mx_version": self.mx_version,
"os": self.runs_on,
"fetch_depth": 0 if "--tags style" in self.run else 1,
"python_version": self.python_version,
"setup_steps": self.setup,
"run_steps": self.run,
"python_packages": " ".join(self.python_packages),
"system_packages": " ".join(self.system_packages),
"provide_artifact": [self.upload_artifact.name, self.upload_artifact.pattern] if self.upload_artifact else None,
"require_artifact": [self.download_artifact.name, self.download_artifact.pattern] if self.download_artifact else None,
"logs": self.logs.replace("../", "${{ env.PARENT_DIRECTORY }}/"),
"env": self.env,
"downloads_steps": "\n".join(self.downloads),
}
def __str__(self):
return str(self.to_dict())
def __eq__(self, other):
if isinstance(other, Job):
return self.to_dict() == other.to_dict()
return NotImplemented
def __gt__(self, other):
if isinstance(other, Job):
if self.job.get("runAfter") == other.name:
return True
if self.download_artifact and not other.download_artifact:
return True
if self.download_artifact and other.upload_artifact:
if fnmatch.fnmatch(other.upload_artifact.name, self.download_artifact.name):
return True
if not self.upload_artifact:
return True
return False
return NotImplemented
def get_tagged_jobs(buildspec, target, filter=None, artifact_mode="all"):
jobs = [Job({"name": target}).to_dict()]
for job in sorted([Job(build) for build in buildspec.get("builds", [])]):
if not any(t for t in job.targets if t in [target]):
if "weekly" in job.targets and target == "tier1": pass
else:
continue
if filter and not re.match(filter, job.name):
continue
if [x for x in JOB_EXCLUSION_TERMS if x in str(job)]:
continue
if artifact_mode == "providers" and not job.upload_artifact:
continue
if artifact_mode == "non-providers" and job.upload_artifact:
continue
jobs.append(job.to_dict())
return jobs
def main(jsonnet_bin, ci_jsonnet, target, filter=None, artifact_mode="all", indent=False):
result = subprocess.check_output([jsonnet_bin, ci_jsonnet], text=True)
buildspec = json.loads(result)
tagged_jobs = get_tagged_jobs(buildspec, target, filter=filter, artifact_mode=artifact_mode)
matrix = tagged_jobs
print(json.dumps(matrix, indent=2 if indent else None))
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Generate GitHub CI matrix from Jsonnet buildspec.")
parser.add_argument("jsonnet_bin", help="Path to jsonnet binary")
parser.add_argument("ci_jsonnet", help="Path to ci.jsonnet spec")
parser.add_argument("target", help="Target name (e.g., tier1)")
parser.add_argument("filter", nargs="?", default=None, help="Regex filter for job names (optional)")
parser.add_argument(
"--artifact-mode",
choices=["all", "providers", "non-providers"],
default="all",
help="Select all jobs, only artifact providers, or only jobs that do not publish artifacts.",
)
parser.add_argument('--indent', action='store_true', help='Indent output JSON')
args = parser.parse_args()
main(
jsonnet_bin=args.jsonnet_bin,
ci_jsonnet=args.ci_jsonnet,
target=args.target,
filter=args.filter,
artifact_mode=args.artifact_mode,
indent=args.indent or sys.stdout.isatty(),
)
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