mirror of
https://github.com/git/git.git
synced 2024-11-14 13:13:01 +01:00
ea5070c91f
The option can be used to check if read-tree with the same set of other options like "-m" and "-u" would succeed without actually changing either the index or the working tree. The relevant tests in the t10?? range were extended to do a read-tree -n before the real read-tree to make sure neither the index nor any local files were changed with -n and the same exit code as without -n is returned. The helper functions added for that purpose reside in the new t/lib-read-tree.sh file. The only exception is #13 in t1004 ("unlinking an un-unlink-able symlink"). As this is an issue of wrong directory permissions it is not detected with -n. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
410 lines
12 KiB
Bash
Executable file
410 lines
12 KiB
Bash
Executable file
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2005 Junio C Hamano
|
|
#
|
|
|
|
test_description='Two way merge with read-tree -m $H $M
|
|
|
|
This test tries two-way merge (aka fast-forward with carry forward).
|
|
|
|
There is the head (called H) and another commit (called M), which is
|
|
simply ahead of H. The index and the work tree contains a state that
|
|
is derived from H, but may also have local changes. This test checks
|
|
all the combinations described in the two-tree merge "carry forward"
|
|
rules, found in <Documentation/git read-tree.txt>.
|
|
|
|
In the test, these paths are used:
|
|
bozbar - in H, stays in M, modified from bozbar to gnusto
|
|
frotz - not in H added in M
|
|
nitfol - in H, stays in M unmodified
|
|
rezrov - in H, deleted in M
|
|
yomin - not in H nor M
|
|
'
|
|
. ./test-lib.sh
|
|
. "$TEST_DIRECTORY"/lib-read-tree.sh
|
|
|
|
read_tree_twoway () {
|
|
git read-tree -m "$1" "$2" && git ls-files --stage
|
|
}
|
|
|
|
compare_change () {
|
|
sed -n >current \
|
|
-e '/^--- /d; /^+++ /d; /^@@ /d;' \
|
|
-e 's/^\([-+][0-7][0-7][0-7][0-7][0-7][0-7]\) '"$_x40"' /\1 X /p' \
|
|
"$1"
|
|
test_cmp expected current
|
|
}
|
|
|
|
check_cache_at () {
|
|
clean_if_empty=`git diff-files -- "$1"`
|
|
case "$clean_if_empty" in
|
|
'') echo "$1: clean" ;;
|
|
?*) echo "$1: dirty" ;;
|
|
esac
|
|
case "$2,$clean_if_empty" in
|
|
clean,) : ;;
|
|
clean,?*) false ;;
|
|
dirty,) false ;;
|
|
dirty,?*) : ;;
|
|
esac
|
|
}
|
|
|
|
cat >bozbar-old <<\EOF
|
|
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
|
|
successfully merge independent changes made to later
|
|
lines (such as this one), avoiding line conflicts.
|
|
EOF
|
|
|
|
sed -e 's/bozbar/gnusto (earlier bozbar)/' bozbar-old >bozbar-new
|
|
|
|
test_expect_success \
|
|
setup \
|
|
'echo frotz >frotz &&
|
|
echo nitfol >nitfol &&
|
|
cat bozbar-old >bozbar &&
|
|
echo rezrov >rezrov &&
|
|
echo yomin >yomin &&
|
|
git update-index --add nitfol bozbar rezrov &&
|
|
treeH=`git write-tree` &&
|
|
echo treeH $treeH &&
|
|
git ls-tree $treeH &&
|
|
|
|
cat bozbar-new >bozbar &&
|
|
git update-index --add frotz bozbar --force-remove rezrov &&
|
|
git ls-files --stage >M.out &&
|
|
treeM=`git write-tree` &&
|
|
echo treeM $treeM &&
|
|
git ls-tree $treeM &&
|
|
git diff-tree $treeH $treeM'
|
|
|
|
test_expect_success \
|
|
'1, 2, 3 - no carry forward' \
|
|
'rm -f .git/index &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git ls-files --stage >1-3.out &&
|
|
test_cmp M.out 1-3.out &&
|
|
check_cache_at bozbar dirty &&
|
|
check_cache_at frotz dirty &&
|
|
check_cache_at nitfol dirty'
|
|
|
|
echo '+100644 X 0 yomin' >expected
|
|
|
|
test_expect_success \
|
|
'4 - carry forward local addition.' \
|
|
'rm -f .git/index &&
|
|
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 &&
|
|
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 &&
|
|
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 &&
|
|
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 &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
git update-index --add frotz &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git ls-files --stage >6.out &&
|
|
test_cmp M.out 6.out &&
|
|
check_cache_at frotz clean'
|
|
|
|
test_expect_success \
|
|
'7 - local addition already has the same.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
echo frotz >frotz &&
|
|
git update-index --add frotz &&
|
|
echo frotz frotz >frotz &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git ls-files --stage >7.out &&
|
|
test_cmp M.out 7.out &&
|
|
check_cache_at frotz dirty'
|
|
|
|
test_expect_success \
|
|
'8 - conflicting addition.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
echo frotz frotz >frotz &&
|
|
git update-index --add frotz &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
test_expect_success \
|
|
'9 - conflicting addition.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
echo frotz frotz >frotz &&
|
|
git update-index --add frotz &&
|
|
echo frotz >frotz &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
test_expect_success \
|
|
'10 - path removed.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
echo rezrov >rezrov &&
|
|
git update-index --add rezrov &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git ls-files --stage >10.out &&
|
|
test_cmp M.out 10.out'
|
|
|
|
test_expect_success \
|
|
'11 - dirty path removed.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
echo rezrov >rezrov &&
|
|
git update-index --add rezrov &&
|
|
echo rezrov rezrov >rezrov &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
test_expect_success \
|
|
'12 - unmatching local changes being removed.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
echo rezrov rezrov >rezrov &&
|
|
git update-index --add rezrov &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
test_expect_success \
|
|
'13 - unmatching local changes being removed.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
echo rezrov rezrov >rezrov &&
|
|
git update-index --add rezrov &&
|
|
echo rezrov >rezrov &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
cat >expected <<EOF
|
|
-100644 X 0 nitfol
|
|
+100644 X 0 nitfol
|
|
EOF
|
|
|
|
test_expect_success \
|
|
'14 - unchanged in two heads.' \
|
|
'rm -f .git/index &&
|
|
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 &&
|
|
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 &&
|
|
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 &&
|
|
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 &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
echo bozbar bozbar >bozbar &&
|
|
git update-index --add bozbar &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
test_expect_success \
|
|
'17 - conflicting local change.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
echo bozbar bozbar >bozbar &&
|
|
git update-index --add bozbar &&
|
|
echo bozbar bozbar bozbar >bozbar &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
test_expect_success \
|
|
'18 - local change already having a good result.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
cat bozbar-new >bozbar &&
|
|
git update-index --add bozbar &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git ls-files --stage >18.out &&
|
|
test_cmp M.out 18.out &&
|
|
check_cache_at bozbar clean'
|
|
|
|
test_expect_success \
|
|
'19 - local change already having a good result, further modified.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
cat bozbar-new >bozbar &&
|
|
git update-index --add bozbar &&
|
|
echo gnusto gnusto >bozbar &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git ls-files --stage >19.out &&
|
|
test_cmp M.out 19.out &&
|
|
check_cache_at bozbar dirty'
|
|
|
|
test_expect_success \
|
|
'20 - no local change, use new tree.' \
|
|
'rm -f .git/index &&
|
|
read_tree_must_succeed $treeH &&
|
|
git checkout-index -u -f -q -a &&
|
|
cat bozbar-old >bozbar &&
|
|
git update-index --add bozbar &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git ls-files --stage >20.out &&
|
|
test_cmp M.out 20.out &&
|
|
check_cache_at bozbar dirty'
|
|
|
|
test_expect_success \
|
|
'21 - no local change, dirty cache.' \
|
|
'rm -f .git/index &&
|
|
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.
|
|
test_expect_success \
|
|
'22 - local change cache updated.' \
|
|
'rm -f .git/index &&
|
|
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 &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
# Also make sure we did not break DF vs DF/DF case.
|
|
test_expect_success \
|
|
'DF vs DF/DF case setup.' \
|
|
'rm -f .git/index &&
|
|
echo DF >DF &&
|
|
git update-index --add DF &&
|
|
treeDF=`git write-tree` &&
|
|
echo treeDF $treeDF &&
|
|
git ls-tree $treeDF &&
|
|
|
|
rm -f DF &&
|
|
mkdir DF &&
|
|
echo DF/DF >DF/DF &&
|
|
git update-index --add --remove DF DF/DF &&
|
|
treeDFDF=`git write-tree` &&
|
|
echo treeDFDF $treeDFDF &&
|
|
git ls-tree $treeDFDF &&
|
|
git ls-files --stage >DFDF.out'
|
|
|
|
test_expect_success \
|
|
'DF vs DF/DF case test.' \
|
|
'rm -f .git/index &&
|
|
rm -fr DF &&
|
|
echo DF >DF &&
|
|
git update-index --add DF &&
|
|
read_tree_twoway $treeDF $treeDFDF &&
|
|
git ls-files --stage >DFDFcheck.out &&
|
|
test_cmp DFDF.out DFDFcheck.out &&
|
|
check_cache_at DF/DF dirty &&
|
|
:'
|
|
|
|
test_expect_success \
|
|
'a/b (untracked) vs a case setup.' \
|
|
'rm -f .git/index &&
|
|
: >a &&
|
|
git update-index --add a &&
|
|
treeM=`git write-tree` &&
|
|
echo treeM $treeM &&
|
|
git ls-tree $treeM &&
|
|
git ls-files --stage >treeM.out &&
|
|
|
|
rm -f a &&
|
|
git update-index --remove a &&
|
|
mkdir a &&
|
|
: >a/b &&
|
|
treeH=`git write-tree` &&
|
|
echo treeH $treeH &&
|
|
git ls-tree $treeH'
|
|
|
|
test_expect_success \
|
|
'a/b (untracked) vs a, plus c/d case test.' \
|
|
'read_tree_u_must_fail -u -m "$treeH" "$treeM" &&
|
|
git ls-files --stage &&
|
|
test -f a/b'
|
|
|
|
test_expect_success \
|
|
'a/b vs a, plus c/d case setup.' \
|
|
'rm -f .git/index &&
|
|
rm -fr a &&
|
|
: >a &&
|
|
mkdir c &&
|
|
: >c/d &&
|
|
git update-index --add a c/d &&
|
|
treeM=`git write-tree` &&
|
|
echo treeM $treeM &&
|
|
git ls-tree $treeM &&
|
|
git ls-files --stage >treeM.out &&
|
|
|
|
rm -f a &&
|
|
mkdir a &&
|
|
: >a/b &&
|
|
git update-index --add --remove a a/b &&
|
|
treeH=`git write-tree` &&
|
|
echo treeH $treeH &&
|
|
git ls-tree $treeH'
|
|
|
|
test_expect_success \
|
|
'a/b vs a, plus c/d case test.' \
|
|
'read_tree_u_must_succeed -u -m "$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
|