b155725dae
An earlier change to optimize directory-file conflict check
broke what "read-tree --emu23" expects. This is fixed by this
commit.
(1) Introduces an explicit flag to tell add_cache_entry() not to
check for conflicts and use it when reading an existing tree
into an empty stage --- by definition this case can never
introduce such conflicts.
(2) Makes read-cache.c:has_file_name() and read-cache.c:has_dir_name()
aware of the cache stages, and flag conflict only with paths
in the same stage.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
423 lines
13 KiB
Bash
423 lines
13 KiB
Bash
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2005 Junio C Hamano
|
|
#
|
|
|
|
test_description='Two way merge with read-tree --emu23 $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-rev-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
|
|
|
|
read_tree_twoway () {
|
|
git-read-tree --emu23 "$1" "$2" &&
|
|
git-ls-files --stage &&
|
|
git-merge-cache git-merge-one-file-script -a &&
|
|
git-ls-files --stage
|
|
}
|
|
|
|
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
|
|
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
|
|
compare_change () {
|
|
sed -n >current \
|
|
-e '/^--- /d; /^+++ /d; /^@@ /d;' \
|
|
-e 's/^\([-+][0-7][0-7][0-7][0-7][0-7][0-7]\) '"$_x40"' /\1 X /p' \
|
|
"$1"
|
|
diff -u 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
|
|
}
|
|
|
|
check_stages () {
|
|
cat >expected_stages
|
|
git-ls-files --stage | sed -e "s/ $_x40 / X /" >current_stages
|
|
diff -u expected_stages current_stages
|
|
}
|
|
|
|
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-cache --add nitfol bozbar rezrov &&
|
|
treeH=`git-write-tree` &&
|
|
echo treeH $treeH &&
|
|
git-ls-tree $treeH &&
|
|
|
|
cat bozbar-new >bozbar &&
|
|
git-update-cache --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'
|
|
|
|
# "read-tree -m H I+H M" but I is empty so this is "read-tree -m H H M".
|
|
#
|
|
# bozbar [O && A && B && O==A && O!=B (#14) ==> B] take M by read-tree
|
|
# frotz [!O && !A && B (#2) ==> B] take M by read-tree
|
|
# nitfol [O && A && B && O==A && O==B (#15) ==> B] take M by read-tree
|
|
# rezrov [O && A && !B && O==A (#10) ==> no merge] removed by script
|
|
#
|
|
# Earlier one did not have #2ALT so taking M was done by the script,
|
|
# which also updated the work tree and making frotz clean. With #2ALT,
|
|
# this is resolved by read-tree itself and the path is left dirty
|
|
# because we are not testing "read-tree -u --emu23".
|
|
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 &&
|
|
diff -u M.out 1-3.out &&
|
|
check_cache_at bozbar dirty &&
|
|
check_cache_at frotz dirty && # same as pure 2-way again.
|
|
check_cache_at nitfol dirty'
|
|
|
|
echo '+100644 X 0 yomin' >expected
|
|
|
|
test_expect_success \
|
|
'4 - carry forward local addition.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
git-update-cache --add yomin &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >4.out || exit
|
|
diff -u M.out 4.out >4diff.out
|
|
compare_change 4diff.out expected &&
|
|
check_cache_at yomin clean'
|
|
|
|
# "read-tree -m H I+H M" where !H && !M; so (I+H) not being up-to-date
|
|
# should not matter. Thanks to #3ALT, this is now possible.
|
|
test_expect_success \
|
|
'5 - carry forward local addition.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo yomin >yomin &&
|
|
git-update-cache --add yomin &&
|
|
echo yomin yomin >yomin &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >5.out || exit
|
|
diff -u M.out 5.out >5diff.out
|
|
compare_change 5diff.out expected &&
|
|
check_cache_at yomin dirty'
|
|
|
|
# "read-tree -m H I+H M" where !H && M && (I+H) == M, so this should
|
|
# succeed (even the entry is clean), now thanks to #5ALT.
|
|
test_expect_success \
|
|
'6 - local addition already has the same.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
git-update-cache --add frotz &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >6.out &&
|
|
diff -u M.out 6.out &&
|
|
check_cache_at frotz clean'
|
|
|
|
# Exactly the same pattern as above but with dirty cache. This also
|
|
# should succeed, now thanks to #5ALT.
|
|
test_expect_success \
|
|
'7 - local addition already has the same.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo frotz >frotz &&
|
|
git-update-cache --add frotz &&
|
|
echo frotz frotz >frotz &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >7.out &&
|
|
diff -u M.out 7.out &&
|
|
check_cache_at frotz dirty'
|
|
|
|
test_expect_success \
|
|
'8 - conflicting addition.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo frotz frotz >frotz &&
|
|
git-update-cache --add frotz &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
test_expect_success \
|
|
'9 - conflicting addition.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo frotz frotz >frotz &&
|
|
git-update-cache --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 &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo rezrov >rezrov &&
|
|
git-update-cache --add rezrov &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >10.out &&
|
|
diff -u M.out 10.out'
|
|
|
|
test_expect_success \
|
|
'11 - dirty path removed.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo rezrov >rezrov &&
|
|
git-update-cache --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 &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo rezrov rezrov >rezrov &&
|
|
git-update-cache --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 &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo rezrov rezrov >rezrov &&
|
|
git-update-cache --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 &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo nitfol nitfol >nitfol &&
|
|
git-update-cache --add nitfol &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >14.out || exit
|
|
diff -u 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 &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo nitfol nitfol >nitfol &&
|
|
git-update-cache --add nitfol &&
|
|
echo nitfol nitfol nitfol >nitfol &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >15.out || exit
|
|
diff -u M.out 15.out >15diff.out
|
|
compare_change 15diff.out expected &&
|
|
check_cache_at nitfol dirty'
|
|
|
|
# This is different from straight 2-way merge in that it leaves
|
|
# three stages of bozbar in the index file without failing, so
|
|
# the user can run git-diff-stages to examine the situation.
|
|
# With #2ALT, frotz is resolved internally.
|
|
test_expect_success \
|
|
'16 - conflicting local change.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo bozbar bozbar >bozbar &&
|
|
git-update-cache --add bozbar &&
|
|
git-read-tree --emu23 $treeH $treeM &&
|
|
check_stages' <<\EOF
|
|
100644 X 1 bozbar
|
|
100644 X 2 bozbar
|
|
100644 X 3 bozbar
|
|
100644 X 0 frotz
|
|
100644 X 0 nitfol
|
|
100644 X 1 rezrov
|
|
100644 X 2 rezrov
|
|
EOF
|
|
|
|
test_expect_success \
|
|
'17 - conflicting local change.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
echo bozbar bozbar >bozbar &&
|
|
git-update-cache --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 &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
cat bozbar-new >bozbar &&
|
|
git-update-cache --add bozbar &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >18.out &&
|
|
diff -u 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 &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
cat bozbar-new >bozbar &&
|
|
git-update-cache --add bozbar &&
|
|
echo gnusto gnusto >bozbar &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >19.out &&
|
|
diff -u M.out 19.out &&
|
|
check_cache_at bozbar dirty'
|
|
|
|
test_expect_success \
|
|
'20 - no local change, use new tree.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
cat bozbar-old >bozbar &&
|
|
git-update-cache --add bozbar &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >20.out &&
|
|
diff -u M.out 20.out &&
|
|
check_cache_at bozbar dirty'
|
|
|
|
test_expect_success \
|
|
'21 - no local change, dirty cache.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
cat bozbar-old >bozbar &&
|
|
git-update-cache --add bozbar &&
|
|
echo gnusto gnusto >bozbar &&
|
|
if read_tree_twoway $treeH $treeM; then false; else :; fi'
|
|
|
|
echo '-100644 X 0 bozbar
|
|
+100644 X 0 bozbar' >expected
|
|
|
|
# This fails with straight two-way fast forward, but emu23
|
|
# can merge them.
|
|
test_expect_success \
|
|
'22 - local change cache updated.' \
|
|
'rm -f .git/index &&
|
|
git-read-tree $treeH &&
|
|
git-checkout-cache -u -f -q -a &&
|
|
sed -e "s/such as/SUCH AS/" bozbar-old >bozbar &&
|
|
git-update-cache --add bozbar &&
|
|
read_tree_twoway $treeH $treeM &&
|
|
git-ls-files --stage >22.out || exit
|
|
diff -u M.out 22.out >22diff.out
|
|
compare_change 22diff.out &&
|
|
check_cache_at bozbar clean'
|
|
|
|
# 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-cache --add DF &&
|
|
treeDF=`git-write-tree` &&
|
|
echo treeDF $treeDF &&
|
|
git-ls-tree $treeDF &&
|
|
git-ls-files --stage >DF.out
|
|
|
|
rm -f DF &&
|
|
mkdir DF &&
|
|
echo DF/DF >DF/DF &&
|
|
git-update-cache --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 (#1)' \
|
|
'rm -f .git/index &&
|
|
rm -fr DF &&
|
|
echo DF >DF &&
|
|
git-update-cache --add DF &&
|
|
read_tree_twoway $treeDF $treeDFDF &&
|
|
git-ls-files --stage >DFDFcheck.out &&
|
|
diff -u DFDF.out DFDFcheck.out &&
|
|
check_cache_at DF/DF clean && # different from pure 2-way
|
|
:'
|
|
|
|
# The other way around
|
|
test_expect_success \
|
|
'DF vs DF/DF case test (#2)' \
|
|
'rm -f .git/index &&
|
|
rm -fr DF &&
|
|
mkdir DF &&
|
|
echo DF/DF >DF/DF &&
|
|
git-update-cache --add DF/DF &&
|
|
read_tree_twoway $treeDFDF $treeDF &&
|
|
git-ls-files --stage >DFDFcheck.out &&
|
|
diff -u DF.out DFDFcheck.out &&
|
|
check_cache_at DF clean && # different from pure 2-way
|
|
:'
|
|
|
|
# Emu23 can grok I having more than H. Make sure we did not
|
|
# botch the conflict tests (fixed).
|
|
test_expect_success \
|
|
'DF vs DF/DF case test (#3).' \
|
|
'rm -f .git/index &&
|
|
rm -fr DF &&
|
|
mkdir DF &&
|
|
echo DF/DF >DF/DF &&
|
|
git-update-cache --add DF/DF &&
|
|
# This should fail because I and H have a conflict
|
|
# at DF.
|
|
if git-read-tree --emu23 $treeDF $treeDFDF
|
|
then false
|
|
else true
|
|
fi'
|
|
|
|
test_done
|