CVS/cli.py at main · Bowqua/CVS · GitHub

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import argparse
from commands import init, add, commit, log, reset, checkout, branch, tag


def main():
    parser = argparse.ArgumentParser(
        prog="cvs.py", description="CLI for a version control utility"
    )

    subparsers = parser.add_subparsers(
        dest="command", help="Available commands", required=True
    )

    # init command
    subparsers.add_parser("init", help="Initialize a repository")

    # add command
    add_parser = subparsers.add_parser("add", help="Add a file to the staging area")
    add_parser.add_argument("file", help="Path to the file to add to staging area")

    # commit command
    commit_parser = subparsers.add_parser(
        "commit", help="Commit changes to the repository"
    )
    commit_parser.add_argument(
        "-m", "--message", required=True, help="The commit message"
    )

    # log command
    subparsers.add_parser("log", help="Show the commit history")

    # reset command
    reset_parser = subparsers.add_parser(
        "reset", help="Reset the current HEAD to a specified state"
    )
    reset_parser.add_argument("commit_hash", help="The hash of the commit to reset to")

    # checkout command
    checkout_parser = subparsers.add_parser(
        "checkout", help="Switch working directory to the given commit"
    )
    checkout_parser.add_argument(
        "commit_hash", help="The hash of the commit to checkout"
    )

    # branch commands
    branch_parser = subparsers.add_parser("branch", help="Branch operations")
    branch_parser.add_argument("name", nargs="?", default=None, help="Branch name")
    branch_parser.add_argument(
        "-d", "--delete", action="store_true", help="Delete the given branch"
    )

    # tag commands
    tag_parser = subparsers.add_parser("tag", help="Tag operations")
    tag_parser.add_argument("name", nargs="?", default=None, help="Tag name")
    tag_parser.add_argument(
        "-d", "--delete", action="store_true", help="Delete the given tag"
    )
    tag_parser.add_argument(
        "-c",
        "--commit",
        dest="commit_hash",
        default=None,
        help="Commit hash to tag (defaults to HEAD)",
    )
    tag_parser.add_argument(
        "-m",
        "--message",
        dest="message",
        default=None,
        help="Tag message (creates annotated tag)",
    )

    merge_parser = subparsers.add_parser(
        "merge",
        help="Merge another branch into the current branch (manual conflict resolution)",
    )
    merge_parser.add_argument("name", type=str, help="The name of the branch to merge")

    args = parser.parse_args()

    if args.command == "init":
        init.run()
    elif args.command == "add":
        add.run(args.file)
    elif args.command == "commit":
        commit.run(args.message)
    elif args.command == "log":
        log.run()
    elif args.command == "reset":
        reset.run(args.commit_hash)
    elif args.command == "checkout":
        checkout.run(args.commit_hash)
    elif args.command == "branch":
        branch.run(args.name, args.delete)
    elif args.command == "tag":
        tag.run(args.name, args.delete, args.commit_hash, args.message)
    elif args.command == "merge":
        branch.merge(args.name)