ref: e969575d2e55eec89d3a2765b974e023123d8fa5
dir: /sys/src/cmd/git/diff/
#!/bin/rc
rfork ne
. /sys/lib/git/common.rc
gitup
flagfmt='c:commit branch, s:summarize'; args='[file ...]'
eval `''{aux/getflags $*} || exec aux/usage
if(~ $#commit 0)
commit=HEAD
files=()
if(! ~ $#* 0)
files=`{cleanname -d $gitrel $*}
branch=`{git/query -p $commit}
if(~ $summarize 1){
git/walk -fMAR -b $commit $files
exit
}
showed=()
mntgen /mnt/scratch
bind $branch/tree/ /mnt/scratch/a
bind . /mnt/scratch/b
for(f in `$nl{git/walk -c -fRMA -b $commit $files}){
if(~ $#showed 0){
echo diff `{git/query $commit} uncommitted
showed=1
}
cd /mnt/scratch
a=a/$f
b=b/$f
if(! test -f a/$f)
a=/dev/null
if(! test -f b/$f)
b=/dev/null
diff -u $a $b
}
exit ''