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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements.  See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership.  The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License.  You may obtain a copy of the License at
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#
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#   http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied.  See the License for the
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# specific language governing permissions and limitations
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# under the License.
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import argparse
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import hashlib
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import os
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import subprocess
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from datetime import datetime
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XVFB_PRE_CMD = "xvfb-run --auto-servernum --server-args='-screen 0, 1024x768x24' "
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REPO = os.getenv("GITHUB_REPOSITORY") or "apache/superset"
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GITHUB_EVENT_NAME = os.getenv("GITHUB_REPOSITORY") or "push"
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CYPRESS_RECORD_KEY = os.getenv("CYPRESS_RECORD_KEY") or ""
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def compute_hash(file_path: str) -> str:
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    return hashlib.md5(file_path.encode()).hexdigest()
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def compute_group_index(hash_value: str, num_groups: int) -> int:
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    return int(hash_value, 16) % num_groups
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def generate_build_id() -> str:
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    now = datetime.now()
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    rounded_minute = now.minute - (now.minute % 20)
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    rounded_time = now.replace(minute=rounded_minute, second=0, microsecond=0)
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    return (os.getenv("GITHUB_SHA") or "DUMMY")[:8] + rounded_time.strftime(
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        "%Y%m%d%H%M"
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    )
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def get_cypress_cmd(
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    spec_list: list[str], _filter: str, group: str, use_dashboard: bool
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) -> str:
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    cypress_cmd = "./node_modules/.bin/cypress run"
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    os.environ["TERM"] = "xterm"
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    os.environ["ELECTRON_DISABLE_GPU"] = "true"
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    build_id = generate_build_id()
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    browser = os.getenv("CYPRESS_BROWSER", "chrome")
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    if use_dashboard:
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        # Run using cypress.io service
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        spec: str = "cypress/e2e/*/**/*"
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        cmd = (
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            f"{XVFB_PRE_CMD} "
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            f'{cypress_cmd} --spec "{spec}" --browser {browser} '
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            f"--record --group {group} --tag {REPO},{GITHUB_EVENT_NAME} "
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            f"--parallel --ci-build-id {build_id}"
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        )
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    else:
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        # Run local, but split the execution
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        os.environ.pop("CYPRESS_RECORD_KEY", None)
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        spec_list_str = ",".join(sorted(spec_list))
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        if _filter:
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            spec_list_str = ",".join(sorted([s for s in spec_list if _filter in s]))
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        cmd = (
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            f"{XVFB_PRE_CMD} "
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            f"{cypress_cmd} --browser {browser} "
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            f'--spec "{spec_list_str}" '
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        )
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    return cmd
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def main() -> None:
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    parser = argparse.ArgumentParser(
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        description="Generate Cypress commands based on test file hash"
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    )
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    parser.add_argument(
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        "--use-dashboard",
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        action="store_true",
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        help="Use Cypress Dashboard for parallelization",
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    )
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    parser.add_argument(
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        "--parallelism", type=int, default=10, help="Number of parallel groups"
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    )
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    parser.add_argument(
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        "--parallelism-id", type=int, required=True, help="ID of the parallelism group"
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    )
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    parser.add_argument(
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        "--filter", type=str, required=False, default=None, help="filter to test"
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    )
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    parser.add_argument("--group", type=str, default="Default", help="Group name")
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    parser.add_argument(
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        "--dry-run",
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        action="store_true",
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        help="Print the command instead of executing it",
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    )
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    args = parser.parse_args()
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    script_dir = os.path.dirname(os.path.abspath(__file__))
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    cypress_base_path = "superset-frontend/cypress-base/"
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    cypress_base_full_path = os.path.join(script_dir, "../", cypress_base_path)
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    cypress_tests_path = os.path.join(cypress_base_full_path, "cypress/e2e")
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    test_files = []
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    for root, _, files in os.walk(cypress_tests_path):
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        for file in files:
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            if file.endswith("test.ts") or file.endswith("test.js"):
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                test_files.append(
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                    os.path.join(root, file).replace(cypress_base_full_path, "")
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                )
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    # Initialize groups
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    groups: dict[int, list[str]] = {i: [] for i in range(args.parallelism)}
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    # Sort test files to ensure deterministic distribution
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    sorted_test_files = sorted(test_files)
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    # Distribute test files in a round-robin manner
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    for index, test_file in enumerate(sorted_test_files):
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        group_index = index % args.parallelism
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        groups[group_index].append(test_file)
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    group_id = args.parallelism_id
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    spec_list = groups[group_id]
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    cmd = get_cypress_cmd(spec_list, args.filter, args.group, args.use_dashboard)
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    print(f"RUN: {cmd}")
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    if not args.dry_run:
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        subprocess.run(cmd, shell=True, check=True, stdout=None, stderr=None)
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if __name__ == "__main__":
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    main()
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