36 lines
565 B
Bash
Executable file
36 lines
565 B
Bash
Executable file
#!/bin/rc
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rfork e
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if(! ~ $#* 1){
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echo 'usage: patch/undo patch-name' >[1=2]
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exit usage
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}
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if(! test -d /n/sources/patch){
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rfork n
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9fs sources
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}
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if(! test -d /n/sources/patch/$1){
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echo 'no such patch' /n/sources/patch/$1 >[1=2]
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exit nopatch
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}
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d=$1
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builtin cd /n/sources/patch/$1 || exit nopatch
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if(! patch/okay .){
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echo 'bad patch: '$status >[1=2]
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exit badpatch
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}
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fn xxx {
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if(cmp $2.new $1){
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echo cp /n/sources/patch/$d/$2.backup $1
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cp $2.backup $1
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}
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if not
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echo $1 has changed since patch was applied! >[1=2]
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}
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cat files | sed 's/^/xxx /' |rc
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