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git/t/t6022-merge-rename.sh
Elijah Newren 52304ecddf t6022: Add paired rename+D/F conflict: (two/file, one/file) -> (one, two)
An interesting testcase is having two files each in their own subdirectory
getting renamed to the toplevel at the directory pathname of the other.
Questions arise as to whether the order of operations matters and whether
the directories can correctly get out of the way and make room for the
new files.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29 17:32:36 -07:00

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#!/bin/sh
test_description='Merge-recursive merging renames'
. ./test-lib.sh
modify () {
sed -e "$1" <"$2" >"$2.x" &&
mv "$2.x" "$2"
}
test_expect_success setup \
'
cat >A <<\EOF &&
a aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
b bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
c cccccccccccccccccccccccccccccccccccccccccccccccc
d dddddddddddddddddddddddddddddddddddddddddddddddd
e eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
f ffffffffffffffffffffffffffffffffffffffffffffffff
g gggggggggggggggggggggggggggggggggggggggggggggggg
h hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
i iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
j jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
k kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
l llllllllllllllllllllllllllllllllllllllllllllllll
m mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
n nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
o oooooooooooooooooooooooooooooooooooooooooooooooo
EOF
cat >M <<\EOF &&
A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
B BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
D DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
E EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
F FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
G GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
H HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
J JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ
K KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK
L LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
M MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
N NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
O OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
EOF
git add A M &&
git commit -m "initial has A and M" &&
git branch white &&
git branch red &&
git branch blue &&
git branch yellow &&
git branch change &&
git branch change+rename &&
sed -e "/^g /s/.*/g : master changes a line/" <A >A+ &&
mv A+ A &&
git commit -a -m "master updates A" &&
git checkout yellow &&
rm -f M &&
git commit -a -m "yellow removes M" &&
git checkout white &&
sed -e "/^g /s/.*/g : white changes a line/" <A >B &&
sed -e "/^G /s/.*/G : colored branch changes a line/" <M >N &&
rm -f A M &&
git update-index --add --remove A B M N &&
git commit -m "white renames A->B, M->N" &&
git checkout red &&
sed -e "/^g /s/.*/g : red changes a line/" <A >B &&
sed -e "/^G /s/.*/G : colored branch changes a line/" <M >N &&
rm -f A M &&
git update-index --add --remove A B M N &&
git commit -m "red renames A->B, M->N" &&
git checkout blue &&
sed -e "/^g /s/.*/g : blue changes a line/" <A >C &&
sed -e "/^G /s/.*/G : colored branch changes a line/" <M >N &&
rm -f A M &&
git update-index --add --remove A C M N &&
git commit -m "blue renames A->C, M->N" &&
git checkout change &&
sed -e "/^g /s/.*/g : changed line/" <A >A+ &&
mv A+ A &&
git commit -q -a -m "changed" &&
git checkout change+rename &&
sed -e "/^g /s/.*/g : changed line/" <A >B &&
rm A &&
git update-index --add B &&
git commit -q -a -m "changed and renamed" &&
git checkout master'
test_expect_success 'pull renaming branch into unrenaming one' \
'
git show-branch
git pull . white && {
echo "BAD: should have conflicted"
return 1
}
git ls-files -s
test "$(git ls-files -u B | wc -l)" -eq 3 || {
echo "BAD: should have left stages for B"
return 1
}
test "$(git ls-files -s N | wc -l)" -eq 1 || {
echo "BAD: should have merged N"
return 1
}
sed -ne "/^g/{
p
q
}" B | grep master || {
echo "BAD: should have listed our change first"
return 1
}
test "$(git diff white N | wc -l)" -eq 0 || {
echo "BAD: should have taken colored branch"
return 1
}
'
test_expect_success 'pull renaming branch into another renaming one' \
'
rm -f B
git reset --hard
git checkout red
git pull . white && {
echo "BAD: should have conflicted"
return 1
}
test "$(git ls-files -u B | wc -l)" -eq 3 || {
echo "BAD: should have left stages"
return 1
}
test "$(git ls-files -s N | wc -l)" -eq 1 || {
echo "BAD: should have merged N"
return 1
}
sed -ne "/^g/{
p
q
}" B | grep red || {
echo "BAD: should have listed our change first"
return 1
}
test "$(git diff white N | wc -l)" -eq 0 || {
echo "BAD: should have taken colored branch"
return 1
}
'
test_expect_success 'pull unrenaming branch into renaming one' \
'
git reset --hard
git show-branch
git pull . master && {
echo "BAD: should have conflicted"
return 1
}
test "$(git ls-files -u B | wc -l)" -eq 3 || {
echo "BAD: should have left stages"
return 1
}
test "$(git ls-files -s N | wc -l)" -eq 1 || {
echo "BAD: should have merged N"
return 1
}
sed -ne "/^g/{
p
q
}" B | grep red || {
echo "BAD: should have listed our change first"
return 1
}
test "$(git diff white N | wc -l)" -eq 0 || {
echo "BAD: should have taken colored branch"
return 1
}
'
test_expect_success 'pull conflicting renames' \
'
git reset --hard
git show-branch
git pull . blue && {
echo "BAD: should have conflicted"
return 1
}
test "$(git ls-files -u A | wc -l)" -eq 1 || {
echo "BAD: should have left a stage"
return 1
}
test "$(git ls-files -u B | wc -l)" -eq 1 || {
echo "BAD: should have left a stage"
return 1
}
test "$(git ls-files -u C | wc -l)" -eq 1 || {
echo "BAD: should have left a stage"
return 1
}
test "$(git ls-files -s N | wc -l)" -eq 1 || {
echo "BAD: should have merged N"
return 1
}
sed -ne "/^g/{
p
q
}" B | grep red || {
echo "BAD: should have listed our change first"
return 1
}
test "$(git diff white N | wc -l)" -eq 0 || {
echo "BAD: should have taken colored branch"
return 1
}
'
test_expect_success 'interference with untracked working tree file' '
git reset --hard
git show-branch
echo >A this file should not matter
git pull . white && {
echo "BAD: should have conflicted"
return 1
}
test -f A || {
echo "BAD: should have left A intact"
return 1
}
'
test_expect_success 'interference with untracked working tree file' '
git reset --hard
git checkout white
git show-branch
rm -f A
echo >A this file should not matter
git pull . red && {
echo "BAD: should have conflicted"
return 1
}
test -f A || {
echo "BAD: should have left A intact"
return 1
}
'
test_expect_success 'interference with untracked working tree file' '
git reset --hard
rm -f A M
git checkout -f master
git tag -f anchor
git show-branch
git pull . yellow || {
echo "BAD: should have cleanly merged"
return 1
}
test -f M && {
echo "BAD: should have removed M"
return 1
}
git reset --hard anchor
'
test_expect_success 'updated working tree file should prevent the merge' '
git reset --hard
rm -f A M
git checkout -f master
git tag -f anchor
git show-branch
echo >>M one line addition
cat M >M.saved
git pull . yellow && {
echo "BAD: should have complained"
return 1
}
test_cmp M M.saved || {
echo "BAD: should have left M intact"
return 1
}
rm -f M.saved
'
test_expect_success 'updated working tree file should prevent the merge' '
git reset --hard
rm -f A M
git checkout -f master
git tag -f anchor
git show-branch
echo >>M one line addition
cat M >M.saved
git update-index M
git pull . yellow && {
echo "BAD: should have complained"
return 1
}
test_cmp M M.saved || {
echo "BAD: should have left M intact"
return 1
}
rm -f M.saved
'
test_expect_success 'interference with untracked working tree file' '
git reset --hard
rm -f A M
git checkout -f yellow
git tag -f anchor
git show-branch
echo >M this file should not matter
git pull . master || {
echo "BAD: should have cleanly merged"
return 1
}
test -f M || {
echo "BAD: should have left M intact"
return 1
}
git ls-files -s | grep M && {
echo "BAD: M must be untracked in the result"
return 1
}
git reset --hard anchor
'
test_expect_success 'merge of identical changes in a renamed file' '
rm -f A M N
git reset --hard &&
git checkout change+rename &&
GIT_MERGE_VERBOSITY=3 git merge change | grep "^Skipped B" &&
git reset --hard HEAD^ &&
git checkout change &&
GIT_MERGE_VERBOSITY=3 git merge change+rename | grep "^Skipped B"
'
test_expect_success 'setup for rename + d/f conflicts' '
git reset --hard &&
git checkout --orphan dir-in-way &&
git rm -rf . &&
mkdir sub &&
mkdir dir &&
printf "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n" >sub/file &&
echo foo >dir/file-in-the-way &&
git add -A &&
git commit -m "Common commmit" &&
echo 11 >>sub/file &&
echo more >>dir/file-in-the-way &&
git add -u &&
git commit -m "Commit to merge, with dir in the way" &&
git checkout -b dir-not-in-way &&
git reset --soft HEAD^ &&
git rm -rf dir &&
git commit -m "Commit to merge, with dir removed" -- dir sub/file &&
git checkout -b renamed-file-has-no-conflicts dir-in-way~1 &&
git rm -rf dir &&
git rm sub/file &&
printf "1\n2\n3\n4\n5555\n6\n7\n8\n9\n10\n" >dir &&
git add dir &&
git commit -m "Independent change" &&
git checkout -b renamed-file-has-conflicts dir-in-way~1 &&
git rm -rf dir &&
git mv sub/file dir &&
echo 12 >>dir &&
git add dir &&
git commit -m "Conflicting change"
'
printf "1\n2\n3\n4\n5555\n6\n7\n8\n9\n10\n11\n" >expected
test_expect_success 'Rename+D/F conflict; renamed file merges + dir not in way' '
git reset --hard &&
git checkout -q renamed-file-has-no-conflicts^0 &&
git merge --strategy=recursive dir-not-in-way &&
git diff --quiet &&
test -f dir &&
test_cmp expected dir
'
test_expect_failure 'Rename+D/F conflict; renamed file merges but dir in way' '
git reset --hard &&
rm -rf dir~* &&
git checkout -q renamed-file-has-no-conflicts^0 &&
test_must_fail git merge --strategy=recursive dir-in-way >output &&
grep "CONFLICT (delete/modify): dir/file-in-the-way" output &&
grep "Auto-merging dir" output &&
grep "Adding as dir~HEAD instead" output &&
test 2 = "$(git ls-files -u | wc -l)" &&
test 2 = "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
test_must_fail git diff --quiet &&
test_must_fail git diff --cached --quiet &&
test -f dir/file-in-the-way &&
test -f dir~HEAD &&
test_cmp expected dir~HEAD
'
test_expect_failure 'Same as previous, but merged other way' '
git reset --hard &&
rm -rf dir~* &&
git checkout -q dir-in-way^0 &&
test_must_fail git merge --strategy=recursive renamed-file-has-no-conflicts >output 2>errors &&
! grep "error: refusing to lose untracked file at" errors &&
grep "CONFLICT (delete/modify): dir/file-in-the-way" output &&
grep "Auto-merging dir" output &&
grep "Adding as dir~renamed-file-has-no-conflicts instead" output &&
test 2 = "$(git ls-files -u | wc -l)" &&
test 2 = "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
test_must_fail git diff --quiet &&
test_must_fail git diff --cached --quiet &&
test -f dir/file-in-the-way &&
test -f dir~renamed-file-has-no-conflicts &&
test_cmp expected dir~renamed-file-has-no-conflicts
'
cat >expected <<\EOF &&
1
2
3
4
5
6
7
8
9
10
<<<<<<< HEAD
12
=======
11
>>>>>>> dir-not-in-way
EOF
test_expect_failure 'Rename+D/F conflict; renamed file cannot merge, dir not in way' '
git reset --hard &&
rm -rf dir~* &&
git checkout -q renamed-file-has-conflicts^0 &&
test_must_fail git merge --strategy=recursive dir-not-in-way &&
test 3 = "$(git ls-files -u | wc -l)" &&
test 3 = "$(git ls-files -u dir | wc -l)" &&
test_must_fail git diff --quiet &&
test_must_fail git diff --cached --quiet &&
test -f dir &&
test_cmp expected dir
'
test_expect_failure 'Rename+D/F conflict; renamed file cannot merge and dir in the way' '
modify s/dir-not-in-way/dir-in-way/ expected &&
git reset --hard &&
rm -rf dir~* &&
git checkout -q renamed-file-has-conflicts^0 &&
test_must_fail git merge --strategy=recursive dir-in-way &&
test 5 = "$(git ls-files -u | wc -l)" &&
test 3 = "$(git ls-files -u dir | grep -v file-in-the-way | wc -l)" &&
test 2 = "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
test_must_fail git diff --quiet &&
test_must_fail git diff --cached --quiet &&
test -f dir/file-in-the-way &&
test -f dir~HEAD &&
test_cmp expected dir~HEAD
'
cat >expected <<\EOF &&
1
2
3
4
5
6
7
8
9
10
<<<<<<< HEAD
11
=======
12
>>>>>>> renamed-file-has-conflicts
EOF
test_expect_failure 'Same as previous, but merged other way' '
git reset --hard &&
rm -rf dir~* &&
git checkout -q dir-in-way^0 &&
test_must_fail git merge --strategy=recursive renamed-file-has-conflicts &&
test 5 = "$(git ls-files -u | wc -l)" &&
test 3 = "$(git ls-files -u dir | grep -v file-in-the-way | wc -l)" &&
test 2 = "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
test_must_fail git diff --quiet &&
test_must_fail git diff --cached --quiet &&
test -f dir/file-in-the-way &&
test -f dir~renamed-file-has-conflicts &&
test_cmp expected dir~renamed-file-has-conflicts
'
test_expect_success 'setup both rename source and destination involved in D/F conflict' '
git reset --hard &&
git checkout --orphan rename-dest &&
git rm -rf . &&
git clean -fdqx &&
mkdir one &&
echo stuff >one/file &&
git add -A &&
git commit -m "Common commmit" &&
git mv one/file destdir &&
git commit -m "Renamed to destdir" &&
git checkout -b source-conflict HEAD~1 &&
git rm -rf one &&
mkdir destdir &&
touch one destdir/foo &&
git add -A &&
git commit -m "Conflicts in the way"
'
test_expect_failure 'both rename source and destination involved in D/F conflict' '
git reset --hard &&
rm -rf dir~* &&
git checkout -q rename-dest^0 &&
test_must_fail git merge --strategy=recursive source-conflict &&
test 1 = "$(git ls-files -u | wc -l)" &&
test_must_fail git diff --quiet &&
test -f destdir/foo &&
test -f one &&
test -f destdir~HEAD &&
test "stuff" = "$(cat destdir~HEAD)"
'
test_expect_success 'setup pair rename to parent of other (D/F conflicts)' '
git reset --hard &&
git checkout --orphan rename-two &&
git rm -rf . &&
git clean -fdqx &&
mkdir one &&
mkdir two &&
echo stuff >one/file &&
echo other >two/file &&
git add -A &&
git commit -m "Common commmit" &&
git rm -rf one &&
git mv two/file one &&
git commit -m "Rename two/file -> one" &&
git checkout -b rename-one HEAD~1 &&
git rm -rf two &&
git mv one/file two &&
rm -r one &&
git commit -m "Rename one/file -> two"
'
test_expect_failure 'pair rename to parent of other (D/F conflicts) w/ untracked dir' '
git checkout -q rename-one^0 &&
mkdir one &&
test_must_fail git merge --strategy=recursive rename-two &&
test 2 = "$(git ls-files -u | wc -l)" &&
test 1 = "$(git ls-files -u one | wc -l)" &&
test 1 = "$(git ls-files -u two | wc -l)" &&
test_must_fail git diff --quiet &&
test 4 = $(find . | grep -v .git | wc -l) &&
test -d one &&
test -f one~rename-two &&
test -f two &&
test "other" = $(cat one~rename-two) &&
test "stuff" = $(cat two)
'
test_expect_success 'pair rename to parent of other (D/F conflicts) w/ clean start' '
git reset --hard &&
git clean -fdqx &&
test_must_fail git merge --strategy=recursive rename-two &&
test 2 = "$(git ls-files -u | wc -l)" &&
test 1 = "$(git ls-files -u one | wc -l)" &&
test 1 = "$(git ls-files -u two | wc -l)" &&
test_must_fail git diff --quiet &&
test 3 = $(find . | grep -v .git | wc -l) &&
test -f one &&
test -f two &&
test "other" = $(cat one) &&
test "stuff" = $(cat two)
'
test_done