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Fix copy_file_if_changed src permissions copied too (#3161)
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@ -1,4 +1,5 @@
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import codecs
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from contextlib import suppress
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import logging
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import os
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@ -233,8 +234,20 @@ def copy_file_if_changed(src: os.PathLike, dst: os.PathLike) -> None:
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return
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mkdir_p(os.path.dirname(dst))
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try:
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shutil.copy(src, dst)
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shutil.copyfile(src, dst)
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except OSError as err:
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if isinstance(err, PermissionError):
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# Older esphome versions copied over the src file permissions too.
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# So when the dst file had 444 permissions, the dst file would have those
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# too and subsequent writes would fail
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# -> delete file (it would be overwritten anyway), and try again
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# if that fails, use normal error handler
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with suppress(OSError):
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os.unlink(dst)
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shutil.copyfile(src, dst)
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return
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from esphome.core import EsphomeError
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raise EsphomeError(f"Error copying file {src} to {dst}: {err}") from err
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