git/t/t4027-diff-submodule.sh
Junio C Hamano 2b459b483c diff: make sure work tree side is shown as 0{40} when different
Ping Yin noticed that "git diff-index --raw" shows 0{40} when work tree
has submodule difference, but "git diff --raw" didn't correctly do so.

There was a mistake in the diffcore_skip_stat_unmatch() that was meant to
clean up the stat-only difference for running diff between the index and
work tree and diff between the tree and the work tree, to cause it re-read
from the submodule repository HEAD.  When ce_stat_match() says work tree
is different, we should always say 0{40} on the work tree side.

This patch fixes the issue, and adds tests.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-02 01:08:34 -08:00

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#!/bin/sh
test_description='difference in submodules'
. ./test-lib.sh
. ../diff-lib.sh
_z40=0000000000000000000000000000000000000000
test_expect_success setup '
test_tick &&
test_create_repo sub &&
(
cd sub &&
echo hello >world &&
git add world &&
git commit -m submodule
) &&
test_tick &&
echo frotz >nitfol &&
git add nitfol sub &&
git commit -m superproject &&
(
cd sub &&
echo goodbye >world &&
git add world &&
git commit -m "submodule #2"
) &&
set x $(
cd sub &&
git rev-list HEAD
) &&
echo ":160000 160000 $3 $_z40 M sub" >expect
'
test_expect_success 'git diff --raw HEAD' '
git diff --raw --abbrev=40 HEAD >actual &&
diff -u expect actual
'
test_expect_success 'git diff-index --raw HEAD' '
git diff-index --raw HEAD >actual.index &&
diff -u expect actual.index
'
test_expect_success 'git diff-files --raw' '
git diff-files --raw >actual.files &&
diff -u expect actual.files
'
test_done