80 lines
1.3 KiB
Text
80 lines
1.3 KiB
Text
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#!/bin/rc
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rfork e
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if(! ~ $#* 1){
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echo 'usage: patch/apply 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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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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if(! echo >.tmp || ! rm .tmp){
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echo no write permission >[1=2]
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exit 'no write permission'
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}
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echo -n merge... >[1=2]
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fn xxx {
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if(! test -f $1)
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cp $2 $2.new
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if not
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ape/diff3 -m $1 $2.orig $2 >$2.new
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if(grep -s '^<<<<' $2.new){
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echo conflicts merging $1';' see `{pwd}^/$2.new >[1=2]
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touch failed
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}
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}
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rm -f failed
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cat files | sed 's/^/xxx /' | rc
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if(test -f failed){
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echo exiting without changes >[1=2]
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exit failed
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}
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echo -n backup... >[1=2]
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fn xxx {
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# echo cp $1 $2.backup
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cp $1 $2.backup
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}
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cat files | sed 's/^/xxx /' |rc
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echo -n copy... >[1=2]
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fn xxx {
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# echo cp $2.new $1
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cp $2.new $1 || touch failed
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}
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cat files | sed 's/^/xxx /' | rc
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fn xxx {
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# echo cp $2.backup $1
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cp $2.backup $1
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}
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if(test -f failed){
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echo copying failed, restoring backups >[1=2]
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cat files | sed 's/^/xxx /' | rc
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exit failed
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}
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echo >[1=2]
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echo to update sources: >[1=2]
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cat files | awk '{print " update " $1 }' >[1=2]
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