dotfiles/hm/scripts/music_remove_dashes

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#!/usr/bin/env nix-shell
#! nix-shell -i python3 --pure
#! nix-shell -p python3
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"""
Small script to convert music files in the form:
$(tracknumber) - $(title).$(ext)
to the form
$(tracknumber) $(title).$(ext)
(note the absence of dash)
"""
import os
import re
def main() -> None:
"""
Function that executes the script.
"""
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for root, _, files in os.walk("."):
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for filename in files:
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match = re.match(r"^(\d+) - (.+)$", filename)
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if not match:
continue
new_filename = f"{match[1]} {match[2]}"
old_path = os.path.join(root, filename)
new_path = os.path.join(root, new_filename)
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print(old_path, "->", new_path)
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os.rename(old_path, new_path)
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if __name__ == "__main__":
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main()