12 lines
332 B
Text
12 lines
332 B
Text
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#!/usr/bin/env sh
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: \
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&& f="${1?missing filename}" && shift \
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&& for e in "$@" \
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;do : \
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&& cp "$f" "$f.bak" && sed -i -e "$e" "$f" \
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&& { diff -q "$f" "$f.bak" >/dev/null; [ $? = 1 ] ;} \
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|| { printf >&2 '\033[91mfailed to apply sed:\033[m\n%s\n' "$e"; exit 1 ;} \
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&& rm "$f.bak" || exit \
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;done \
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;
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