plan9fox/sys/src/cmd/git/revert

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#!/bin/rc
rfork en
. /sys/lib/git/common.rc
gitup
flagfmt='c:query query' args='file ...'
eval `''{aux/getflags $*} || exec aux/usage
commit=$gitfs/HEAD
if(~ $#query 1)
commit=`{git/query -p $query}
files=`$nl{cleanname -d $gitrel $*}
for(f in `$nl{cd $commit/tree/ && walk -f $files}){
mkdir -p `{basename -d $f}
if(cp -x -- $commit/tree/$f $f)
walk -eq $f > .git/index9/tracked/$f
if not
echo -n > .git/index9/tracked/$f
}
exit ''