removes excess indentation from clipboard text on macos

dedent_text.py

#!/usr/bin/python3

import shutil
import subprocess
import textwrap


def check_commands():
    """Ensure `pbcopy` and `pbpaste` are available."""
    if not all(map(shutil.which, ("pbcopy", "pbpaste"))):
        raise SystemExit("could not find pbcopy/pbpaste. are you on a mac?")
    return True


def load_clipboard():
    """Read the clipboard contents."""
    try:
        p = subprocess.run(["pbpaste"], stdout=subprocess.PIPE, text=True, check=True)
        return p.stdout
    except subprocess.CalledProcessError:
        raise SystemExit("error: failed to read from clipboard")


def to_clipboard(text):
    """Write text to the clipboard."""
    try:
        p = subprocess.run(["pbcopy"], input=text, text=True, check=True)
        return p.returncode == 0
    except subprocess.CalledProcessError:
        raise SystemExit("error: failed to write to clipboard")


def dedent_clipboard():
    """Dedent the clipboard contents."""
    text = load_clipboard()
    if text:
        dedented = textwrap.dedent(text).strip()
        if dedented == text:  # no dedenting needed, don't write to clipboard
            return True
        return to_clipboard(dedented)


if __name__ == "__main__":
    check_commands()
    dedent_clipboard()