test_description='Two way merge with read-tree -m $H $M
-This test tries two-way merge (aka fast forward with carry forward).
+This test tries two-way merge (aka fast-forward with carry forward).
There is the head (called H) and another commit (called M), which is
simply ahead of H. The index and the work tree contains a state that
yomin - not in H nor M
'
. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-read-tree.sh
read_tree_twoway () {
git read-tree -m "$1" "$2" && git ls-files --stage
}
-_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
-_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
compare_change () {
sed -n >current \
-e '/^--- /d; /^+++ /d; /^@@ /d;' \
}
cat >bozbar-old <<\EOF
-This is a sample file used in two-way fast forward merge
+This is a sample file used in two-way fast-forward merge
tests. Its second line ends with a magic word bozbar
which will be modified by the merged head to gnusto.
It has some extra lines so that external tools can
test_expect_success \
'4 - carry forward local addition.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
git update-index --add yomin &&
read_tree_twoway $treeH $treeM &&
- git ls-files --stage >4.out || return 1
- git diff --no-index M.out 4.out >4diff.out
+ git ls-files --stage >4.out &&
+ test_must_fail git diff --no-index M.out 4.out >4diff.out &&
compare_change 4diff.out expected &&
check_cache_at yomin clean'
test_expect_success \
'5 - carry forward local addition.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo yomin >yomin &&
git update-index --add yomin &&
echo yomin yomin >yomin &&
read_tree_twoway $treeH $treeM &&
- git ls-files --stage >5.out || return 1
- git diff --no-index M.out 5.out >5diff.out
+ git ls-files --stage >5.out &&
+ test_must_fail git diff --no-index M.out 5.out >5diff.out &&
compare_change 5diff.out expected &&
check_cache_at yomin dirty'
test_expect_success \
'6 - local addition already has the same.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
git update-index --add frotz &&
read_tree_twoway $treeH $treeM &&
test_expect_success \
'7 - local addition already has the same.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo frotz >frotz &&
git update-index --add frotz &&
test_expect_success \
'8 - conflicting addition.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo frotz frotz >frotz &&
git update-index --add frotz &&
test_expect_success \
'9 - conflicting addition.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo frotz frotz >frotz &&
git update-index --add frotz &&
test_expect_success \
'10 - path removed.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo rezrov >rezrov &&
git update-index --add rezrov &&
test_expect_success \
'11 - dirty path removed.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo rezrov >rezrov &&
git update-index --add rezrov &&
test_expect_success \
'12 - unmatching local changes being removed.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo rezrov rezrov >rezrov &&
git update-index --add rezrov &&
test_expect_success \
'13 - unmatching local changes being removed.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo rezrov rezrov >rezrov &&
git update-index --add rezrov &&
test_expect_success \
'14 - unchanged in two heads.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo nitfol nitfol >nitfol &&
git update-index --add nitfol &&
read_tree_twoway $treeH $treeM &&
- git ls-files --stage >14.out || return 1
- git diff --no-index M.out 14.out >14diff.out
+ git ls-files --stage >14.out &&
+ test_must_fail git diff --no-index M.out 14.out >14diff.out &&
compare_change 14diff.out expected &&
check_cache_at nitfol clean'
test_expect_success \
'15 - unchanged in two heads.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo nitfol nitfol >nitfol &&
git update-index --add nitfol &&
echo nitfol nitfol nitfol >nitfol &&
read_tree_twoway $treeH $treeM &&
- git ls-files --stage >15.out || return 1
- git diff --no-index M.out 15.out >15diff.out
+ git ls-files --stage >15.out &&
+ test_must_fail git diff --no-index M.out 15.out >15diff.out &&
compare_change 15diff.out expected &&
check_cache_at nitfol dirty'
test_expect_success \
'16 - conflicting local change.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo bozbar bozbar >bozbar &&
git update-index --add bozbar &&
test_expect_success \
'17 - conflicting local change.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
echo bozbar bozbar >bozbar &&
git update-index --add bozbar &&
test_expect_success \
'18 - local change already having a good result.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
cat bozbar-new >bozbar &&
git update-index --add bozbar &&
test_expect_success \
'19 - local change already having a good result, further modified.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
cat bozbar-new >bozbar &&
git update-index --add bozbar &&
test_expect_success \
'20 - no local change, use new tree.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
cat bozbar-old >bozbar &&
git update-index --add bozbar &&
test_expect_success \
'21 - no local change, dirty cache.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
cat bozbar-old >bozbar &&
git update-index --add bozbar &&
echo gnusto gnusto >bozbar &&
if read_tree_twoway $treeH $treeM; then false; else :; fi'
-# This fails with straight two-way fast forward.
+# This fails with straight two-way fast-forward.
test_expect_success \
'22 - local change cache updated.' \
'rm -f .git/index &&
- git read-tree $treeH &&
+ read_tree_must_succeed $treeH &&
git checkout-index -u -f -q -a &&
sed -e "s/such as/SUCH AS/" bozbar-old >bozbar &&
git update-index --add bozbar &&
test_expect_success \
'a/b (untracked) vs a, plus c/d case test.' \
- '! git read-tree -u -m "$treeH" "$treeM" &&
+ 'read_tree_u_must_fail -u -m "$treeH" "$treeM" &&
git ls-files --stage &&
test -f a/b'
git ls-files --stage >treeM.out &&
rm -f a &&
- mkdir a
+ mkdir a &&
: >a/b &&
git update-index --add --remove a a/b &&
treeH=`git write-tree` &&
test_expect_success \
'a/b vs a, plus c/d case test.' \
- 'git read-tree -u -m "$treeH" "$treeM" &&
+ 'read_tree_u_must_succeed -u -m "$treeH" "$treeM" &&
git ls-files --stage | tee >treeMcheck.out &&
test_cmp treeM.out treeMcheck.out'
+test_expect_success '-m references the correct modified tree' '
+ echo >file-a &&
+ echo >file-b &&
+ git add file-a file-b &&
+ git commit -a -m "test for correct modified tree" &&
+ git branch initial-mod &&
+ echo b >file-b &&
+ git commit -a -m "B" &&
+ echo a >file-a &&
+ git add file-a &&
+ git ls-tree $(git write-tree) file-a >expect &&
+ read_tree_must_succeed -m HEAD initial-mod &&
+ git ls-tree $(git write-tree) file-a >actual &&
+ test_cmp expect actual
+'
+
test_done