Re: [PATCH v2 3/4] introduce new format for git stash create

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On 01/30, Junio C Hamano wrote:
> Thomas Gummerer <t.gummerer@xxxxxxxxx> writes:
> 
> >  create_stash () {
> > -	stash_msg="$1"
> > -	untracked="$2"
> > +	stash_msg=
> > +	untracked=
> > +	new_style=
> > ...
> > +	while test $# != 0
> > +	do
> > +		case "$1" in
> > +		-m|--message)
> > +			shift
> > +			stash_msg="$1"
> 
> 	${1?"-m needs an argument"}
> 
> to error check "git stash create -m<Enter>"?
> 
> > +	if test -z "$new_style"
> > +	then
> > +		stash_msg="$*"
> > +	fi
> 
> This breaks external users who do "git stash create" in the old
> fashioned way, I think, but can be easily fixed with something like:
> 
> 		stash_msg=$1 untracked=$2
> 
> If the existing tests did not catch this, I guess there is a
> coverage gap we may want to fill.  Perhaps add a new test to 3903
> that runs "git stash create message untracked" and makes sure it
> still works?

No I don't think this breaks.  It was never possible to add an
untracked argument to git stash create.  The difference is in a part
of this patch that is snipped out in your reply:

@@ -697,7 +739,7 @@ clear)
        ;;
 create)
        shift
-       create_stash "$*" && echo "$w_commit"
+       create_stash "$@" && echo "$w_commit"
        ;;
 store)
        shift

If I understand this piece correctly (I'm not very proficient in
shell, but my testing seems to agree with me), previously we used $*,
which transformed all arguments to git stash create into one argument
in create_stash.  This needed to change to $@, as otherwise we can't
pull the arguments apart for the new calling style.  The two argument
version of create_stash was only used internally in the save_stash
function.

> > diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh
> > index 0171b824c9..34e9610bb6 100755
> > --- a/t/t3903-stash.sh
> > +++ b/t/t3903-stash.sh
> > @@ -784,4 +784,22 @@ test_expect_success 'push -m shows right message' '
> >  	test_cmp expect actual
> >  '
> >  
> > +test_expect_success 'deprecated version of stash create stores correct message' '
> > +	>foo &&
> > +	git add foo &&
> > +	STASH_ID=$(git stash create "create test message") &&
> > +	echo "On master: create test message" >expect &&
> > +	git show --pretty=%s ${STASH_ID} | head -n1 >actual &&
> > +	test_cmp expect actual
> > +'
> > +
> > +test_expect_success 'new style stash create stores correct message' '
> > +	>foo &&
> > +	git add foo &&
> > +	STASH_ID=$(git stash create -m "create test message new style") &&
> > +	echo "On master: create test message new style" >expect &&
> > +	git show --pretty=%s ${STASH_ID} | head -n1 >actual &&
> > +	test_cmp expect actual
> > +'
> > +
> >  test_done

-- 
Thomas



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