![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
index b66544b76d545a396ef068438f3980b3f544efdd..9d8584e957a26cadda2f04d38d27fd0c4b97ae29 100755 (executable)
--- a/t/t6022-merge-rename.sh
+++ b/t/t6022-merge-rename.sh
test_description='Merge-recursive merging renames'
. ./test-lib.sh
+modify () {
+ sed -e "$1" <"$2" >"$2.x" &&
+ mv "$2.x" "$2"
+}
+
test_expect_success setup \
'
cat >A <<\EOF &&
test_expect_success 'pull renaming branch into unrenaming one' \
'
- git show-branch
- git pull . white && {
- echo "BAD: should have conflicted"
- return 1
- }
- git ls-files -s
- test "$(git ls-files -u B | wc -l)" -eq 3 || {
- echo "BAD: should have left stages for B"
- return 1
- }
- test "$(git ls-files -s N | wc -l)" -eq 1 || {
- echo "BAD: should have merged N"
- return 1
- }
+ git show-branch &&
+ test_expect_code 1 git pull . white &&
+ git ls-files -s &&
+ git ls-files -u B >b.stages &&
+ test_line_count = 3 b.stages &&
+ git ls-files -s N >n.stages &&
+ test_line_count = 1 n.stages &&
sed -ne "/^g/{
p
q
- }" B | grep master || {
- echo "BAD: should have listed our change first"
- return 1
- }
- test "$(git diff white N | wc -l)" -eq 0 || {
- echo "BAD: should have taken colored branch"
- return 1
- }
+ }" B | grep master &&
+ git diff --exit-code white N
'
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
- }
+ rm -f B &&
+ git reset --hard &&
+ git checkout red &&
+ test_expect_code 1 git pull . white &&
+ git ls-files -u B >b.stages &&
+ test_line_count = 3 b.stages &&
+ git ls-files -s N >n.stages &&
+ test_line_count = 1 n.stages &&
sed -ne "/^g/{
p
q
- }" B | grep red || {
- echo "BAD: should have listed our change first"
- return 1
- }
- test "$(git diff white N | wc -l)" -eq 0 || {
- echo "BAD: should have taken colored branch"
- return 1
- }
+ }" B | grep red &&
+ git diff --exit-code white N
'
test_expect_success 'pull unrenaming branch into renaming one' \
'
- git reset --hard
- git show-branch
- git pull . master && {
- echo "BAD: should have conflicted"
- return 1
- }
- test "$(git ls-files -u B | wc -l)" -eq 3 || {
- echo "BAD: should have left stages"
- return 1
- }
- test "$(git ls-files -s N | wc -l)" -eq 1 || {
- echo "BAD: should have merged N"
- return 1
- }
+ git reset --hard &&
+ git show-branch &&
+ test_expect_code 1 git pull . master &&
+ git ls-files -u B >b.stages &&
+ test_line_count = 3 b.stages &&
+ git ls-files -s N >n.stages &&
+ test_line_count = 1 n.stages &&
sed -ne "/^g/{
p
q
- }" B | grep red || {
- echo "BAD: should have listed our change first"
- return 1
- }
- test "$(git diff white N | wc -l)" -eq 0 || {
- echo "BAD: should have taken colored branch"
- return 1
- }
+ }" B | grep red &&
+ git diff --exit-code white N
'
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
- }
+ git reset --hard &&
+ git show-branch &&
+ test_expect_code 1 git pull . blue &&
+ git ls-files -u A >a.stages &&
+ test_line_count = 1 a.stages &&
+ git ls-files -u B >b.stages &&
+ test_line_count = 1 b.stages &&
+ git ls-files -u C >c.stages &&
+ test_line_count = 1 c.stages &&
+ git ls-files -s N >n.stages &&
+ test_line_count = 1 n.stages &&
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
- }
+ }" B | grep red &&
+ git diff --exit-code white N
'
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
- }
+ git reset --hard &&
+ git show-branch &&
+ echo >A this file should not matter &&
+ test_expect_code 1 git pull . white &&
+ test_path_is_file A
'
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
- }
+ git reset --hard &&
+ git checkout white &&
+ git show-branch &&
+ rm -f A &&
+ echo >A this file should not matter &&
+ test_expect_code 1 git pull . red &&
+ test_path_is_file A
'
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 &&
+ rm -f A M &&
+ git checkout -f master &&
+ git tag -f anchor &&
+ git show-branch &&
+ git pull . yellow &&
+ test_path_is_missing M &&
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
- }
+ 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 &&
+ test_expect_code 128 git pull . yellow &&
+ test_cmp M M.saved &&
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
- }
+ 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 &&
+ test_expect_code 128 git pull . yellow &&
+ test_cmp M M.saved &&
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 &&
+ 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 &&
+ test_path_is_file M &&
+ ! {
+ git ls-files -s |
+ grep M
+ } &&
git reset --hard anchor
'
test_expect_success 'merge of identical changes in a renamed file' '
- rm -f A M N
+ rm -f A M N &&
git reset --hard &&
git checkout change+rename &&
GIT_MERGE_VERBOSITY=3 git merge change | grep "^Skipped B" &&
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 . &&
+ git clean -fdqx &&
+
+ 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_success '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 (modify/delete): dir/file-in-the-way" output &&
+ grep "Auto-merging dir" output &&
+ grep "Adding as dir~HEAD instead" output &&
+
+ test 3 -eq "$(git ls-files -u | wc -l)" &&
+ test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+ test_must_fail git diff --cached --quiet &&
+
+ test -f dir/file-in-the-way &&
+ test -f dir~HEAD &&
+ test_cmp expected dir~HEAD
+'
+
+test_expect_success 'Same as previous, but merged other way' '
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q dir-in-way^0 &&
+ test_must_fail git merge --strategy=recursive renamed-file-has-no-conflicts >output 2>errors &&
+
+ ! grep "error: refusing to lose untracked file at" errors &&
+ grep "CONFLICT (modify/delete): dir/file-in-the-way" output &&
+ grep "Auto-merging dir" output &&
+ grep "Adding as dir~renamed-file-has-no-conflicts instead" output &&
+
+ test 3 -eq "$(git ls-files -u | wc -l)" &&
+ test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+ test_must_fail git diff --cached --quiet &&
+
+ test -f dir/file-in-the-way &&
+ test -f dir~renamed-file-has-no-conflicts &&
+ test_cmp expected dir~renamed-file-has-no-conflicts
+'
+
+cat >expected <<\EOF &&
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+<<<<<<< HEAD:dir
+12
+=======
+11
+>>>>>>> dir-not-in-way:sub/file
+EOF
+
+test_expect_success 'Rename+D/F conflict; renamed file cannot merge, dir not in way' '
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q renamed-file-has-conflicts^0 &&
+ test_must_fail git merge --strategy=recursive dir-not-in-way &&
+
+ test 3 -eq "$(git ls-files -u | wc -l)" &&
+ test 3 -eq "$(git ls-files -u dir | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+ test_must_fail git diff --cached --quiet &&
+
+ test -f dir &&
+ test_cmp expected dir
+'
+
+test_expect_success 'Rename+D/F conflict; renamed file cannot merge and dir in the way' '
+ modify s/dir-not-in-way/dir-in-way/ expected &&
+
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q renamed-file-has-conflicts^0 &&
+ test_must_fail git merge --strategy=recursive dir-in-way &&
+
+ test 5 -eq "$(git ls-files -u | wc -l)" &&
+ test 3 -eq "$(git ls-files -u dir | grep -v file-in-the-way | wc -l)" &&
+ test 2 -eq "$(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:sub/file
+11
+=======
+12
+>>>>>>> renamed-file-has-conflicts:dir
+EOF
+
+test_expect_success '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 -eq "$(git ls-files -u | wc -l)" &&
+ test 3 -eq "$(git ls-files -u dir | grep -v file-in-the-way | wc -l)" &&
+ test 2 -eq "$(git ls-files -u dir/file-in-the-way | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+ test_must_fail git diff --cached --quiet &&
+
+ test -f dir/file-in-the-way &&
+ test -f dir~renamed-file-has-conflicts &&
+ test_cmp expected dir~renamed-file-has-conflicts
+'
+
+test_expect_success 'setup both rename source and destination involved in D/F conflict' '
+ git reset --hard &&
+ git checkout --orphan rename-dest &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ mkdir one &&
+ echo stuff >one/file &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ git mv one/file destdir &&
+ git commit -m "Renamed to destdir" &&
+
+ git checkout -b source-conflict HEAD~1 &&
+ git rm -rf one &&
+ mkdir destdir &&
+ touch one destdir/foo &&
+ git add -A &&
+ git commit -m "Conflicts in the way"
+'
+
+test_expect_success 'both rename source and destination involved in D/F conflict' '
+ git reset --hard &&
+ rm -rf dir~* &&
+ git checkout -q rename-dest^0 &&
+ test_must_fail git merge --strategy=recursive source-conflict &&
+
+ test 1 -eq "$(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" = "$(cat destdir~HEAD)"
+'
+
+test_expect_success 'setup pair rename to parent of other (D/F conflicts)' '
+ git reset --hard &&
+ git checkout --orphan rename-two &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ mkdir one &&
+ mkdir two &&
+ echo stuff >one/file &&
+ echo other >two/file &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ git rm -rf one &&
+ git mv two/file one &&
+ git commit -m "Rename two/file -> one" &&
+
+ git checkout -b rename-one HEAD~1 &&
+ git rm -rf two &&
+ git mv one/file two &&
+ rm -r one &&
+ git commit -m "Rename one/file -> two"
+'
+
+test_expect_success 'pair rename to parent of other (D/F conflicts) w/ untracked dir' '
+ git checkout -q rename-one^0 &&
+ mkdir one &&
+ test_must_fail git merge --strategy=recursive rename-two &&
+
+ test 2 -eq "$(git ls-files -u | wc -l)" &&
+ test 1 -eq "$(git ls-files -u one | wc -l)" &&
+ test 1 -eq "$(git ls-files -u two | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+
+ test 4 -eq $(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" = $(cat two)
+'
+
+test_expect_success 'pair rename to parent of other (D/F conflicts) w/ clean start' '
+ git reset --hard &&
+ git clean -fdqx &&
+ test_must_fail git merge --strategy=recursive rename-two &&
+
+ test 2 -eq "$(git ls-files -u | wc -l)" &&
+ test 1 -eq "$(git ls-files -u one | wc -l)" &&
+ test 1 -eq "$(git ls-files -u two | wc -l)" &&
+
+ test_must_fail git diff --quiet &&
+
+ test 3 -eq $(find . | grep -v .git | wc -l) &&
+
+ test -f one &&
+ test -f two &&
+ test "other" = $(cat one) &&
+ test "stuff" = $(cat two)
+'
+
+test_expect_success 'setup rename of one file to two, with directories in the way' '
+ git reset --hard &&
+ git checkout --orphan first-rename &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ echo stuff >original &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ mkdir two &&
+ >two/file &&
+ git add two/file &&
+ git mv original one &&
+ git commit -m "Put two/file in the way, rename to one" &&
+
+ git checkout -b second-rename HEAD~1 &&
+ mkdir one &&
+ >one/file &&
+ git add one/file &&
+ git mv original two &&
+ git commit -m "Put one/file in the way, rename to two"
+'
+
+test_expect_success 'check handling of differently renamed file with D/F conflicts' '
+ git checkout -q first-rename^0 &&
+ test_must_fail git merge --strategy=recursive second-rename &&
+
+ test 5 -eq "$(git ls-files -s | wc -l)" &&
+ test 3 -eq "$(git ls-files -u | wc -l)" &&
+ test 1 -eq "$(git ls-files -u one | wc -l)" &&
+ test 1 -eq "$(git ls-files -u two | wc -l)" &&
+ test 1 -eq "$(git ls-files -u original | wc -l)" &&
+ test 2 -eq "$(git ls-files -o | wc -l)" &&
+
+ test -f one/file &&
+ test -f two/file &&
+ test -f one~HEAD &&
+ test -f two~second-rename &&
+ ! test -f original
+'
+
+test_expect_success 'setup rename one file to two; directories moving out of the way' '
+ git reset --hard &&
+ git checkout --orphan first-rename-redo &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ echo stuff >original &&
+ mkdir one two &&
+ touch one/file two/file &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ git rm -rf one &&
+ git mv original one &&
+ git commit -m "Rename to one" &&
+
+ git checkout -b second-rename-redo HEAD~1 &&
+ git rm -rf two &&
+ git mv original two &&
+ git commit -m "Rename to two"
+'
+
+test_expect_success 'check handling of differently renamed file with D/F conflicts' '
+ git checkout -q first-rename-redo^0 &&
+ test_must_fail git merge --strategy=recursive second-rename-redo &&
+
+ test 3 -eq "$(git ls-files -u | wc -l)" &&
+ test 1 -eq "$(git ls-files -u one | wc -l)" &&
+ test 1 -eq "$(git ls-files -u two | wc -l)" &&
+ test 1 -eq "$(git ls-files -u original | wc -l)" &&
+ test 0 -eq "$(git ls-files -o | wc -l)" &&
+
+ test -f one &&
+ test -f two &&
+ ! test -f original
+'
+
+test_expect_success 'setup avoid unnecessary update, normal rename' '
+ git reset --hard &&
+ git checkout --orphan avoid-unnecessary-update-1 &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ printf "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n" >original &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ git mv original rename &&
+ echo 11 >>rename &&
+ git add -u &&
+ git commit -m "Renamed and modified" &&
+
+ git checkout -b merge-branch-1 HEAD~1 &&
+ echo "random content" >random-file &&
+ git add -A &&
+ git commit -m "Random, unrelated changes"
+'
+
+test_expect_success 'avoid unnecessary update, normal rename' '
+ git checkout -q avoid-unnecessary-update-1^0 &&
+ test-chmtime =1000000000 rename &&
+ test-chmtime -v +0 rename >expect &&
+ git merge merge-branch-1 &&
+ test-chmtime -v +0 rename >actual &&
+ test_cmp expect actual # "rename" should have stayed intact
+'
+
+test_expect_success 'setup to test avoiding unnecessary update, with D/F conflict' '
+ git reset --hard &&
+ git checkout --orphan avoid-unnecessary-update-2 &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ mkdir df &&
+ printf "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n" >df/file &&
+ git add -A &&
+ git commit -m "Common commmit" &&
+
+ git mv df/file temp &&
+ rm -rf df &&
+ git mv temp df &&
+ echo 11 >>df &&
+ git add -u &&
+ git commit -m "Renamed and modified" &&
+
+ git checkout -b merge-branch-2 HEAD~1 &&
+ >unrelated-change &&
+ git add unrelated-change &&
+ git commit -m "Only unrelated changes"
+'
+
+test_expect_success 'avoid unnecessary update, with D/F conflict' '
+ git checkout -q avoid-unnecessary-update-2^0 &&
+ test-chmtime =1000000000 df &&
+ test-chmtime -v +0 df >expect &&
+ git merge merge-branch-2 &&
+ test-chmtime -v +0 df >actual &&
+ test_cmp expect actual # "df" should have stayed intact
+'
+
+test_expect_success 'setup avoid unnecessary update, dir->(file,nothing)' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ >irrelevant &&
+ mkdir df &&
+ >df/file &&
+ git add -A &&
+ git commit -mA &&
+
+ git checkout -b side
+ git rm -rf df &&
+ git commit -mB &&
+
+ git checkout master &&
+ git rm -rf df &&
+ echo bla >df &&
+ git add -A &&
+ git commit -m "Add a newfile"
+'
+
+test_expect_success 'avoid unnecessary update, dir->(file,nothing)' '
+ git checkout -q master^0 &&
+ test-chmtime =1000000000 df &&
+ test-chmtime -v +0 df >expect &&
+ git merge side &&
+ test-chmtime -v +0 df >actual &&
+ test_cmp expect actual # "df" should have stayed intact
+'
+
+test_expect_success 'setup avoid unnecessary update, modify/delete' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ >irrelevant &&
+ >file &&
+ git add -A &&
+ git commit -mA &&
+
+ git checkout -b side
+ git rm -f file &&
+ git commit -m "Delete file" &&
+
+ git checkout master &&
+ echo bla >file &&
+ git add -A &&
+ git commit -m "Modify file"
+'
+
+test_expect_success 'avoid unnecessary update, modify/delete' '
+ git checkout -q master^0 &&
+ test-chmtime =1000000000 file &&
+ test-chmtime -v +0 file >expect &&
+ test_must_fail git merge side &&
+ test-chmtime -v +0 file >actual &&
+ test_cmp expect actual # "file" should have stayed intact
+'
+
+test_expect_success 'setup avoid unnecessary update, rename/add-dest' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ printf "1\n2\n3\n4\n5\n6\n7\n8\n" >file &&
+ git add -A &&
+ git commit -mA &&
+
+ git checkout -b side
+ cp file newfile &&
+ git add -A &&
+ git commit -m "Add file copy" &&
+
+ git checkout master &&
+ git mv file newfile &&
+ git commit -m "Rename file"
+'
+
+test_expect_success 'avoid unnecessary update, rename/add-dest' '
+ git checkout -q master^0 &&
+ test-chmtime =1000000000 newfile &&
+ test-chmtime -v +0 newfile >expect &&
+ git merge side &&
+ test-chmtime -v +0 newfile >actual &&
+ test_cmp expect actual # "file" should have stayed intact
+'
+
+test_expect_success 'setup merge of rename + small change' '
+ git reset --hard &&
+ git checkout --orphan rename-plus-small-change &&
+ git rm -rf . &&
+ git clean -fdqx &&
+
+ echo ORIGINAL >file &&
+ git add file &&
+
+ test_tick &&
+ git commit -m Initial &&
+ git checkout -b rename_branch &&
+ git mv file renamed_file &&
+ git commit -m Rename &&
+ git checkout rename-plus-small-change &&
+ echo NEW-VERSION >file &&
+ git commit -a -m Reformat
+'
+
+test_expect_success 'merge rename + small change' '
+ git merge rename_branch &&
+
+ test 1 -eq $(git ls-files -s | wc -l) &&
+ test 0 -eq $(git ls-files -o | wc -l) &&
+ test $(git rev-parse HEAD:renamed_file) = $(git rev-parse HEAD~1:file)
+'
+
+test_expect_success 'setup for use of extended merge markers' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ printf "1\n2\n3\n4\n5\n6\n7\n8\n" >original_file &&
+ git add original_file &&
+ git commit -mA &&
+
+ git checkout -b rename &&
+ echo 9 >>original_file &&
+ git add original_file &&
+ git mv original_file renamed_file &&
+ git commit -mB &&
+
+ git checkout master &&
+ echo 8.5 >>original_file &&
+ git add original_file &&
+ git commit -mC
+'
+
+cat >expected <<\EOF &&
+1
+2
+3
+4
+5
+6
+7
+8
+<<<<<<< HEAD:renamed_file
+9
+=======
+8.5
+>>>>>>> master^0:original_file
+EOF
+
+test_expect_success 'merge master into rename has correct extended markers' '
+ git checkout rename^0 &&
+ test_must_fail git merge -s recursive master^0 &&
+ test_cmp expected renamed_file
+'
+
+cat >expected <<\EOF &&
+1
+2
+3
+4
+5
+6
+7
+8
+<<<<<<< HEAD:original_file
+8.5
+=======
+9
+>>>>>>> rename^0:renamed_file
+EOF
+
+test_expect_success 'merge rename into master has correct extended markers' '
+ git reset --hard &&
+ git checkout master^0 &&
+ test_must_fail git merge -s recursive rename^0 &&
+ test_cmp expected renamed_file
+'
+
+test_expect_success 'setup spurious "refusing to lose untracked" message' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ > irrelevant_file &&
+ printf "1\n2\n3\n4\n5\n6\n7\n8\n" >original_file &&
+ git add irrelevant_file original_file &&
+ git commit -mA &&
+
+ git checkout -b rename &&
+ git mv original_file renamed_file &&
+ git commit -mB &&
+
+ git checkout master &&
+ git rm original_file &&
+ git commit -mC
+'
+
+test_expect_success 'no spurious "refusing to lose untracked" message' '
+ git checkout master^0 &&
+ test_must_fail git merge rename^0 2>errors.txt &&
+ ! grep "refusing to lose untracked file" errors.txt
+'
+
test_done