46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
"""Merge three versions of a file: mine, base, and theirs.
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A trivial version of git merge-file (https://git-scm.com/docs/git-merge-file).
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Run it with:
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uv run --directory reconcile-python \
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python ../examples/merge_file.py my.txt base.txt their.txt [output.txt]
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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from reconcile_text import reconcile
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def main() -> None:
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args = sys.argv[1:]
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if len(args) < 3 or len(args) > 4:
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print("Usage: merge_file.py <mine> <base> <theirs> [output]", file=sys.stderr)
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sys.exit(1)
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# Disable universal newline translation to preserve the original line endings.
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with Path(args[0]).open(newline="") as file:
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mine = file.read()
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with Path(args[1]).open(newline="") as file:
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base = file.read()
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with Path(args[2]).open(newline="") as file:
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theirs = file.read()
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result = reconcile(base, mine, theirs)
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if len(args) == 4:
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with Path(args[3]).open("w", newline="") as file:
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file.write(result["text"])
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else:
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reconfigure = getattr(sys.stdout, "reconfigure", None)
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if reconfigure is not None:
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reconfigure(newline="")
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print(result["text"], end="")
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if __name__ == "__main__":
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main()
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