git: 9front

ref: ea344d4512a08ee0cd09735fe3a57ca44dc4b2b1
dir: /sys/src/cmd/git/diff/

View raw version 
#!/bin/rc
rfork ne
. /sys/lib/git/common.rc

gitup

flagfmt='c:commit branch, s:summarize, u:uncommitted'; args='[file ...]'
eval `''{aux/getflags $*} || exec aux/usage

if(~ $#commit 0){
	commit=HEAD
	cparam=()
}

files=()
filt=MAR
if(~ $#uncommitted 1)
	filt=MARU
if(! ~ $#* 0)
	files=`{cleanname -d $gitrel $*}

branch=`{git/query -p $commit}
if(~ $summarize 1 || ~ $uncommitted 1){
	git/walk -f$filt $cparam $files
	exit
}

showed=()
mntgen /mnt/scratch
bind $branch/tree/ /mnt/scratch/a
bind . /mnt/scratch/b
for(f in `$nl{git/walk -c -f$filt $cparam $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 ''