File: trigger-post-merge.py

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#!/usr/bin/env python3
#
# This file is part of the GROMACS molecular simulation package.
#
# Copyright 2022- The GROMACS Authors
# and the project initiators Erik Lindahl, Berk Hess and David van der Spoel.
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"""Script to dispatch a post-merge-acceptance pipeline.

Submits a new post-merge pipeline for the specified branch, useful for
testing issues that only arise in those jobs.

Requires the `python_gitlab <https://python-gitlab.readthedocs.io/en/stable/index.html>`__
package for Python access to the GitLab API.

Author:
    * Paul Bauer <paul.bauer.q@gmail.com>
"""

import argparse
import warnings

try:
    import gitlab
except ImportError:
    warnings.warn(
        "This tool requires the `gitlab` package. Try `pip install python-gitlab`."
    )
    gitlab = None


def submit_gitlab_pipeline(
    auth_token,
    pipeline_type="POST_MERGE_ACCEPTANCE",
    branch="main",
    regtest_branch="main",
    regtest_commit="FETCH_HEAD",
):
    """Submit a post merge pipeline to GitLab server.

    The pipeline is by default created for main, but can be run for any branch.

    Needs access to gitlab python API. For this, someone running the script needs
    to have installed the python library (pip install python-gitlab) and created
    a personal access token that grants access to the GROMACS project
    (https://docs.gitlab.com/ee/user/profile/personal_access_tokens.html).

    Throws if the authentication process, or the submission of the pipeline fails.
    """
    gl = gitlab.Gitlab("https://gitlab.com", private_token=auth_token)
    # The project ID for GROMACS is hardcoded here
    project_id = 17679574
    project = gl.projects.get(project_id)

    print("Going to start pipeline with following arguments")
    print(r"Run for = ", branch)
    print(r"Type = ", pipeline_type)
    print(r"Regression tests from: ", regtest_branch)
    print(r"Regressiontests commit: ", regtest_commit)

    return project.pipelines.create(
        {
            "ref": branch,
            "variables": [
                {"key": pipeline_type, "value": "true"},
                {"key": "REGRESSIONTESTBRANCH", "value": regtest_branch},
                {"key": "REGRESSIONTESTCOMMIT", "value": regtest_commit},
            ],
        }
    )


parser = argparse.ArgumentParser(
    description="Options for manually submitting pipelines."
)

parser.add_argument(
    "--type",
    type=str,
    default="POST_MERGE_ACCEPTANCE",
    help='What kind of pipeline to run (default is "POST_MERGE_ACCEPTANCE")',
)

parser.add_argument(
    "--token",
    type=str,
    required=True,
    help="GitLab access token needed to launch pipelines",
)

parser.add_argument(
    "--branch",
    type=str,
    default="main",
    help='Branch to run pipeline for (default "main")',
)

parser.add_argument(
    "--regtest-branch",
    type=str,
    default="",
    help="Regressiontest branch to use to for running regression tests (default none, which means fall back to main)",
)

parser.add_argument(
    "--regtest-commit",
    type=str,
    default="",
    help="Commit to use instead of the regtest-branch tip for running tests (default empty)",
)

if __name__ == "__main__":
    args = parser.parse_args()
    submit_gitlab_pipeline(
        args.token, args.type, args.branch, args.regtest_branch, args.regtest_commit
    )