bump-version.py

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#  the Apache License, Version 2.0 (the "License"); you may
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# 	http://www.apache.org/licenses/LICENSE-2.0
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"""Command line tool which changes the branch to be
ready to build and test the given Elastic stack version.
"""

import re
import sys
from pathlib import Path

SOURCE_DIR = Path(__file__).absolute().parent.parent


def find_and_replace(path, pattern, replace):
    # Does a find and replace within a file path and complains
    # if the given pattern isn't found in the file.
    with open(path) as f:
        old_data = f.read()

    if re.search(pattern, old_data, flags=re.MULTILINE) is None:
        print(f"Didn't find the pattern {pattern!r} in {path!s}")
        exit(1)

    new_data = re.sub(pattern, replace, old_data, flags=re.MULTILINE)
    with open(path, "w") as f:
        f.truncate()
        f.write(new_data)


def main():
    if len(sys.argv) != 2:
        print("usage: utils/bump-version.py [stack version]")
        exit(1)

    stack_version = sys.argv[1]
    try:
        python_version = re.search(r"^([0-9][0-9\.]*[0-9]+)", stack_version).group(1)
    except AttributeError:
        print(f"Couldn't match the given stack version {stack_version!r}")
        exit(1)

    # Pad the version value with .0 until there
    # we have the major, minor, and patch.
    for _ in range(3):
        if len(python_version.split(".")) >= 3:
            break
        python_version += ".0"

    find_and_replace(
        path=SOURCE_DIR / "elasticsearch/_version.py",
        pattern=r"__versionstr__ = \"[0-9]+[0-9\.]*[0-9](?:\+dev)?\"",
        replace=f'__versionstr__ = "{python_version}"',
    )

    # These values should always be the 'major.minor-SNAPSHOT'
    major_minor_version = ".".join(python_version.split(".")[:2])
    find_and_replace(
        path=SOURCE_DIR / ".buildkite/pipeline.yml",
        pattern=r'STACK_VERSION:\s+"[0-9]+[0-9\.]*[0-9](?:\-SNAPSHOT)?"',
        replace=f'STACK_VERSION: "{major_minor_version}.0-SNAPSHOT"',
    )


if __name__ == "__main__":
    main()