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Diffstat (limited to 't/t4301-merge-tree-write-tree.sh')
| -rwxr-xr-x | t/t4301-merge-tree-write-tree.sh | 863 |
1 files changed, 863 insertions, 0 deletions
diff --git a/t/t4301-merge-tree-write-tree.sh b/t/t4301-merge-tree-write-tree.sh new file mode 100755 index 0000000..cac8559 --- /dev/null +++ b/t/t4301-merge-tree-write-tree.sh @@ -0,0 +1,863 @@ +#!/bin/sh + +test_description='git merge-tree --write-tree' + +. ./test-lib.sh + +# This test is ort-specific +if test "$GIT_TEST_MERGE_ALGORITHM" != "ort" +then + skip_all="GIT_TEST_MERGE_ALGORITHM != ort" + test_done +fi + +test_expect_success setup ' + test_write_lines 1 2 3 4 5 >numbers && + echo hello >greeting && + echo foo >whatever && + git add numbers greeting whatever && + test_tick && + git commit -m initial && + + git branch side1 && + git branch side2 && + git branch side3 && + + git checkout side1 && + test_write_lines 1 2 3 4 5 6 >numbers && + echo hi >greeting && + echo bar >whatever && + git add numbers greeting whatever && + test_tick && + git commit -m modify-stuff && + + git checkout side2 && + test_write_lines 0 1 2 3 4 5 >numbers && + echo yo >greeting && + git rm whatever && + mkdir whatever && + >whatever/empty && + git add numbers greeting whatever/empty && + test_tick && + git commit -m other-modifications && + + git checkout side3 && + git mv numbers sequence && + test_tick && + git commit -m rename-numbers && + + git switch --orphan unrelated && + >something-else && + git add something-else && + test_tick && + git commit -m first-commit +' + +test_expect_success 'Clean merge' ' + TREE_OID=$(git merge-tree --write-tree side1 side3) && + q_to_tab <<-EOF >expect && + 100644 blob $(git rev-parse side1:greeting)Qgreeting + 100644 blob $(git rev-parse side1:numbers)Qsequence + 100644 blob $(git rev-parse side1:whatever)Qwhatever + EOF + + git ls-tree $TREE_OID >actual && + test_cmp expect actual +' + +test_expect_success 'Content merge and a few conflicts' ' + git checkout side1^0 && + test_must_fail git merge side2 && + expected_tree=$(git rev-parse AUTO_MERGE) && + + # We will redo the merge, while we are still in a conflicted state! + git ls-files -u >conflicted-file-info && + test_when_finished "git reset --hard" && + + test_expect_code 1 git merge-tree --write-tree side1 side2 >RESULT && + actual_tree=$(head -n 1 RESULT) && + + # Due to differences of e.g. "HEAD" vs "side1", the results will not + # exactly match. Dig into individual files. + + # Numbers should have three-way merged cleanly + test_write_lines 0 1 2 3 4 5 6 >expect && + git show ${actual_tree}:numbers >actual && + test_cmp expect actual && + + # whatever and whatever~<branch> should have same HASHES + git rev-parse ${expected_tree}:whatever ${expected_tree}:whatever~HEAD >expect && + git rev-parse ${actual_tree}:whatever ${actual_tree}:whatever~side1 >actual && + test_cmp expect actual && + + # greeting should have a merge conflict + git show ${expected_tree}:greeting >tmp && + sed -e s/HEAD/side1/ tmp >expect && + git show ${actual_tree}:greeting >actual && + test_cmp expect actual +' + +test_expect_success 'Barf on misspelled option, with exit code other than 0 or 1' ' + # Mis-spell with single "s" instead of double "s" + test_expect_code 129 git merge-tree --write-tree --mesages FOOBAR side1 side2 2>expect && + + grep "error: unknown option.*mesages" expect +' + +test_expect_success 'Barf on too many arguments' ' + test_expect_code 129 git merge-tree --write-tree side1 side2 invalid 2>expect && + + grep "^usage: git merge-tree" expect +' + +anonymize_hash() { + sed -e "s/[0-9a-f]\{40,\}/HASH/g" "$@" +} + +test_expect_success 'test conflict notices and such' ' + test_expect_code 1 git merge-tree --write-tree --name-only side1 side2 >out && + anonymize_hash out >actual && + + # Expected results: + # "greeting" should merge with conflicts + # "numbers" should merge cleanly + # "whatever" has *both* a modify/delete and a file/directory conflict + cat <<-EOF >expect && + HASH + greeting + whatever~side1 + + Auto-merging greeting + CONFLICT (content): Merge conflict in greeting + Auto-merging numbers + CONFLICT (file/directory): directory in the way of whatever from side1; moving it to whatever~side1 instead. + CONFLICT (modify/delete): whatever~side1 deleted in side2 and modified in side1. Version side1 of whatever~side1 left in tree. + EOF + + test_cmp expect actual +' + +# directory rename + content conflict +# Commit O: foo, olddir/{a,b,c} +# Commit A: modify foo, newdir/{a,b,c} +# Commit B: modify foo differently & rename foo -> olddir/bar +# Expected: CONFLICT(content) for for newdir/bar (not olddir/bar or foo) + +test_expect_success 'directory rename + content conflict' ' + # Setup + git init dir-rename-and-content && + ( + cd dir-rename-and-content && + test_write_lines 1 2 3 4 5 >foo && + mkdir olddir && + for i in a b c; do echo $i >olddir/$i || exit 1; done && + git add foo olddir && + git commit -m "original" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 6 >foo && + git add foo && + git mv olddir newdir && + git commit -m "Modify foo, rename olddir to newdir" && + + git checkout B && + test_write_lines 1 2 3 4 5 six >foo && + git add foo && + git mv foo olddir/bar && + git commit -m "Modify foo & rename foo -> olddir/bar" + ) && + # Testing + ( + cd dir-rename-and-content && + + test_expect_code 1 \ + git merge-tree -z A^0 B^0 >out && + echo >>out && + anonymize_hash out >actual && + q_to_tab <<-\EOF | lf_to_nul >expect && + HASH + 100644 HASH 1Qnewdir/bar + 100644 HASH 2Qnewdir/bar + 100644 HASH 3Qnewdir/bar + EOF + + q_to_nul <<-EOF >>expect && + Q2Qnewdir/barQolddir/barQCONFLICT (directory rename suggested)QCONFLICT (file location): foo renamed to olddir/bar in B^0, inside a directory that was renamed in A^0, suggesting it should perhaps be moved to newdir/bar. + Q1Qnewdir/barQAuto-mergingQAuto-merging newdir/bar + Q1Qnewdir/barQCONFLICT (contents)QCONFLICT (content): Merge conflict in newdir/bar + Q + EOF + test_cmp expect actual + ) +' + +# rename/delete + modify/delete handling +# Commit O: foo +# Commit A: modify foo + rename to bar +# Commit B: delete foo +# Expected: CONFLICT(rename/delete) + CONFLICT(modify/delete) + +test_expect_success 'rename/delete handling' ' + # Setup + git init rename-delete && + ( + cd rename-delete && + test_write_lines 1 2 3 4 5 >foo && + git add foo && + git commit -m "original" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 6 >foo && + git add foo && + git mv foo bar && + git commit -m "Modify foo, rename to bar" && + + git checkout B && + git rm foo && + git commit -m "remove foo" + ) && + # Testing + ( + cd rename-delete && + + test_expect_code 1 \ + git merge-tree -z A^0 B^0 >out && + echo >>out && + anonymize_hash out >actual && + q_to_tab <<-\EOF | lf_to_nul >expect && + HASH + 100644 HASH 1Qbar + 100644 HASH 2Qbar + EOF + + q_to_nul <<-EOF >>expect && + Q2QbarQfooQCONFLICT (rename/delete)QCONFLICT (rename/delete): foo renamed to bar in A^0, but deleted in B^0. + Q1QbarQCONFLICT (modify/delete)QCONFLICT (modify/delete): bar deleted in B^0 and modified in A^0. Version A^0 of bar left in tree. + Q + EOF + test_cmp expect actual + ) +' + +# rename/add handling +# Commit O: foo +# Commit A: modify foo, add different bar +# Commit B: modify & rename foo->bar +# Expected: CONFLICT(add/add) [via rename collide] for bar + +test_expect_success 'rename/add handling' ' + # Setup + git init rename-add && + ( + cd rename-add && + test_write_lines original 1 2 3 4 5 >foo && + git add foo && + git commit -m "original" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 >foo && + echo "different file" >bar && + git add foo bar && + git commit -m "Modify foo, add bar" && + + git checkout B && + test_write_lines original 1 2 3 4 5 6 >foo && + git add foo && + git mv foo bar && + git commit -m "rename foo to bar" + ) && + # Testing + ( + cd rename-add && + + test_expect_code 1 \ + git merge-tree -z A^0 B^0 >out && + echo >>out && + + # + # First, check that the bar that appears at stage 3 does not + # correspond to an individual blob anywhere in history + # + hash=$(cat out | tr "\0" "\n" | head -n 3 | grep 3.bar | cut -f 2 -d " ") && + git rev-list --objects --all >all_blobs && + ! grep $hash all_blobs && + + # + # Second, check anonymized hash output against expectation + # + anonymize_hash out >actual && + q_to_tab <<-\EOF | lf_to_nul >expect && + HASH + 100644 HASH 2Qbar + 100644 HASH 3Qbar + EOF + + q_to_nul <<-EOF >>expect && + Q1QbarQAuto-mergingQAuto-merging bar + Q1QbarQCONFLICT (contents)QCONFLICT (add/add): Merge conflict in bar + Q1QfooQAuto-mergingQAuto-merging foo + Q + EOF + test_cmp expect actual + ) +' + +# rename/add, where add is a mode conflict +# Commit O: foo +# Commit A: modify foo, add symlink bar +# Commit B: modify & rename foo->bar +# Expected: CONFLICT(distinct modes) for bar + +test_expect_success SYMLINKS 'rename/add, where add is a mode conflict' ' + # Setup + git init rename-add-symlink && + ( + cd rename-add-symlink && + test_write_lines original 1 2 3 4 5 >foo && + git add foo && + git commit -m "original" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 >foo && + ln -s foo bar && + git add foo bar && + git commit -m "Modify foo, add symlink bar" && + + git checkout B && + test_write_lines original 1 2 3 4 5 6 >foo && + git add foo && + git mv foo bar && + git commit -m "rename foo to bar" + ) && + # Testing + ( + cd rename-add-symlink && + + test_expect_code 1 \ + git merge-tree -z A^0 B^0 >out && + echo >>out && + + # + # First, check that the bar that appears at stage 3 does not + # correspond to an individual blob anywhere in history + # + hash=$(cat out | tr "\0" "\n" | head -n 3 | grep 3.bar | cut -f 2 -d " ") && + git rev-list --objects --all >all_blobs && + ! grep $hash all_blobs && + + # + # Second, check anonymized hash output against expectation + # + anonymize_hash out >actual && + q_to_tab <<-\EOF | lf_to_nul >expect && + HASH + 120000 HASH 2Qbar + 100644 HASH 3Qbar~B^0 + EOF + + q_to_nul <<-EOF >>expect && + Q2QbarQbar~B^0QCONFLICT (distinct modes)QCONFLICT (distinct types): bar had different types on each side; renamed one of them so each can be recorded somewhere. + Q1QfooQAuto-mergingQAuto-merging foo + Q + EOF + test_cmp expect actual + ) +' + +# rename/rename(1to2) + content conflict handling +# Commit O: foo +# Commit A: modify foo & rename to bar +# Commit B: modify foo & rename to baz +# Expected: CONFLICT(rename/rename) + +test_expect_success 'rename/rename + content conflict' ' + # Setup + git init rr-plus-content && + ( + cd rr-plus-content && + test_write_lines 1 2 3 4 5 >foo && + git add foo && + git commit -m "original" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 six >foo && + git add foo && + git mv foo bar && + git commit -m "Modify foo + rename to bar" && + + git checkout B && + test_write_lines 1 2 3 4 5 6 >foo && + git add foo && + git mv foo baz && + git commit -m "Modify foo + rename to baz" + ) && + # Testing + ( + cd rr-plus-content && + + test_expect_code 1 \ + git merge-tree -z A^0 B^0 >out && + echo >>out && + anonymize_hash out >actual && + q_to_tab <<-\EOF | lf_to_nul >expect && + HASH + 100644 HASH 2Qbar + 100644 HASH 3Qbaz + 100644 HASH 1Qfoo + EOF + + q_to_nul <<-EOF >>expect && + Q1QfooQAuto-mergingQAuto-merging foo + Q3QfooQbarQbazQCONFLICT (rename/rename)QCONFLICT (rename/rename): foo renamed to bar in A^0 and to baz in B^0. + Q + EOF + test_cmp expect actual + ) +' + +# rename/add/delete +# Commit O: foo +# Commit A: rm foo, add different bar +# Commit B: rename foo->bar +# Expected: CONFLICT (rename/delete), CONFLICT(add/add) [via rename collide] +# for bar + +test_expect_success 'rename/add/delete conflict' ' + # Setup + git init rad && + ( + cd rad && + echo "original file" >foo && + git add foo && + git commit -m "original" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm foo && + echo "different file" >bar && + git add bar && + git commit -m "Remove foo, add bar" && + + git checkout B && + git mv foo bar && + git commit -m "rename foo to bar" + ) && + # Testing + ( + cd rad && + + test_expect_code 1 \ + git merge-tree -z B^0 A^0 >out && + echo >>out && + anonymize_hash out >actual && + + q_to_tab <<-\EOF | lf_to_nul >expect && + HASH + 100644 HASH 2Qbar + 100644 HASH 3Qbar + + EOF + + q_to_nul <<-EOF >>expect && + 2QbarQfooQCONFLICT (rename/delete)QCONFLICT (rename/delete): foo renamed to bar in B^0, but deleted in A^0. + Q1QbarQAuto-mergingQAuto-merging bar + Q1QbarQCONFLICT (contents)QCONFLICT (add/add): Merge conflict in bar + Q + EOF + test_cmp expect actual + ) +' + +# rename/rename(2to1)/delete/delete +# Commit O: foo, bar +# Commit A: rename foo->baz, rm bar +# Commit B: rename bar->baz, rm foo +# Expected: 2x CONFLICT (rename/delete), CONFLICT (add/add) via colliding +# renames for baz + +test_expect_success 'rename/rename(2to1)/delete/delete conflict' ' + # Setup + git init rrdd && + ( + cd rrdd && + echo foo >foo && + echo bar >bar && + git add foo bar && + git commit -m O && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv foo baz && + git rm bar && + git commit -m "Rename foo, remove bar" && + + git checkout B && + git mv bar baz && + git rm foo && + git commit -m "Rename bar, remove foo" + ) && + # Testing + ( + cd rrdd && + + test_expect_code 1 \ + git merge-tree -z A^0 B^0 >out && + echo >>out && + anonymize_hash out >actual && + + q_to_tab <<-\EOF | lf_to_nul >expect && + HASH + 100644 HASH 2Qbaz + 100644 HASH 3Qbaz + + EOF + + q_to_nul <<-EOF >>expect && + 2QbazQbarQCONFLICT (rename/delete)QCONFLICT (rename/delete): bar renamed to baz in B^0, but deleted in A^0. + Q2QbazQfooQCONFLICT (rename/delete)QCONFLICT (rename/delete): foo renamed to baz in A^0, but deleted in B^0. + Q1QbazQAuto-mergingQAuto-merging baz + Q1QbazQCONFLICT (contents)QCONFLICT (add/add): Merge conflict in baz + Q + EOF + test_cmp expect actual + ) +' + +# mod6: chains of rename/rename(1to2) + add/add via colliding renames +# Commit O: one, three, five +# Commit A: one->two, three->four, five->six +# Commit B: one->six, three->two, five->four +# Expected: three CONFLICT(rename/rename) messages + three CONFLICT(add/add) +# messages; each path in two of the multi-way merged contents +# found in two, four, six + +test_expect_success 'mod6: chains of rename/rename(1to2) and add/add via colliding renames' ' + # Setup + git init mod6 && + ( + cd mod6 && + test_seq 11 19 >one && + test_seq 31 39 >three && + test_seq 51 59 >five && + git add . && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_seq 10 19 >one && + echo 40 >>three && + git add one three && + git mv one two && + git mv three four && + git mv five six && + test_tick && + git commit -m "A" && + + git checkout B && + echo 20 >>one && + echo forty >>three && + echo 60 >>five && + git add one three five && + git mv one six && + git mv three two && + git mv five four && + test_tick && + git commit -m "B" + ) && + # Testing + ( + cd mod6 && + + test_expect_code 1 \ + git merge-tree -z A^0 B^0 >out && + echo >>out && + + # + # First, check that some of the hashes that appear as stage + # conflict entries do not appear as individual blobs anywhere + # in history. + # + hash1=$(cat out | tr "\0" "\n" | head | grep 2.four | cut -f 2 -d " ") && + hash2=$(cat out | tr "\0" "\n" | head | grep 3.two | cut -f 2 -d " ") && + git rev-list --objects --all >all_blobs && + ! grep $hash1 all_blobs && + ! grep $hash2 all_blobs && + + # + # Now compare anonymized hash output with expectation + # + anonymize_hash out >actual && + q_to_tab <<-\EOF | lf_to_nul >expect && + HASH + 100644 HASH 1Qfive + 100644 HASH 2Qfour + 100644 HASH 3Qfour + 100644 HASH 1Qone + 100644 HASH 2Qsix + 100644 HASH 3Qsix + 100644 HASH 1Qthree + 100644 HASH 2Qtwo + 100644 HASH 3Qtwo + + EOF + + q_to_nul <<-EOF >>expect && + 3QfiveQsixQfourQCONFLICT (rename/rename)QCONFLICT (rename/rename): five renamed to six in A^0 and to four in B^0. + Q1QfourQAuto-mergingQAuto-merging four + Q1QfourQCONFLICT (contents)QCONFLICT (add/add): Merge conflict in four + Q1QoneQAuto-mergingQAuto-merging one + Q3QoneQtwoQsixQCONFLICT (rename/rename)QCONFLICT (rename/rename): one renamed to two in A^0 and to six in B^0. + Q1QsixQAuto-mergingQAuto-merging six + Q1QsixQCONFLICT (contents)QCONFLICT (add/add): Merge conflict in six + Q1QthreeQAuto-mergingQAuto-merging three + Q3QthreeQfourQtwoQCONFLICT (rename/rename)QCONFLICT (rename/rename): three renamed to four in A^0 and to two in B^0. + Q1QtwoQAuto-mergingQAuto-merging two + Q1QtwoQCONFLICT (contents)QCONFLICT (add/add): Merge conflict in two + Q + EOF + test_cmp expect actual + ) +' + +# directory rename + rename/delete + modify/delete + directory/file conflict +# Commit O: foo, olddir/{a,b,c} +# Commit A: delete foo, rename olddir/ -> newdir/, add newdir/bar/file +# Commit B: modify foo & rename foo -> olddir/bar +# Expected: CONFLICT(content) for for newdir/bar (not olddir/bar or foo) + +test_expect_success 'directory rename + rename/delete + modify/delete + directory/file conflict' ' + # Setup + git init 4-stacked-conflict && + ( + cd 4-stacked-conflict && + test_write_lines 1 2 3 4 5 >foo && + mkdir olddir && + for i in a b c; do echo $i >olddir/$i || exit 1; done && + git add foo olddir && + git commit -m "original" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm foo && + git mv olddir newdir && + mkdir newdir/bar && + >newdir/bar/file && + git add newdir/bar/file && + git commit -m "rm foo, olddir/ -> newdir/, + newdir/bar/file" && + + git checkout B && + test_write_lines 1 2 3 4 5 6 >foo && + git add foo && + git mv foo olddir/bar && + git commit -m "Modify foo & rename foo -> olddir/bar" + ) && + # Testing + ( + cd 4-stacked-conflict && + + test_expect_code 1 \ + git merge-tree -z A^0 B^0 >out && + echo >>out && + anonymize_hash out >actual && + + q_to_tab <<-\EOF | lf_to_nul >expect && + HASH + 100644 HASH 1Qnewdir/bar~B^0 + 100644 HASH 3Qnewdir/bar~B^0 + EOF + + q_to_nul <<-EOF >>expect && + Q2Qnewdir/barQolddir/barQCONFLICT (directory rename suggested)QCONFLICT (file location): foo renamed to olddir/bar in B^0, inside a directory that was renamed in A^0, suggesting it should perhaps be moved to newdir/bar. + Q2Qnewdir/barQfooQCONFLICT (rename/delete)QCONFLICT (rename/delete): foo renamed to newdir/bar in B^0, but deleted in A^0. + Q2Qnewdir/bar~B^0Qnewdir/barQCONFLICT (file/directory)QCONFLICT (file/directory): directory in the way of newdir/bar from B^0; moving it to newdir/bar~B^0 instead. + Q1Qnewdir/bar~B^0QCONFLICT (modify/delete)QCONFLICT (modify/delete): newdir/bar~B^0 deleted in A^0 and modified in B^0. Version B^0 of newdir/bar~B^0 left in tree. + Q + EOF + test_cmp expect actual + ) +' + +for opt in $(git merge-tree --git-completion-helper-all) +do + if test $opt = "--trivial-merge" || test $opt = "--write-tree" + then + continue + fi + + test_expect_success "usage: --trivial-merge is incompatible with $opt" ' + test_expect_code 128 git merge-tree --trivial-merge $opt side1 side2 side3 + ' +done + +test_expect_success 'Just the conflicted files without the messages' ' + test_expect_code 1 git merge-tree --write-tree --no-messages --name-only side1 side2 >out && + anonymize_hash out >actual && + + test_write_lines HASH greeting whatever~side1 >expect && + + test_cmp expect actual +' + +test_expect_success 'Check conflicted oids and modes without messages' ' + test_expect_code 1 git merge-tree --write-tree --no-messages side1 side2 >out && + anonymize_hash out >actual && + + # Compare the basic output format + q_to_tab >expect <<-\EOF && + HASH + 100644 HASH 1Qgreeting + 100644 HASH 2Qgreeting + 100644 HASH 3Qgreeting + 100644 HASH 1Qwhatever~side1 + 100644 HASH 2Qwhatever~side1 + EOF + + test_cmp expect actual && + + # Check the actual hashes against the `ls-files -u` output too + tail -n +2 out | sed -e s/side1/HEAD/ >actual && + test_cmp conflicted-file-info actual +' + +test_expect_success 'NUL terminated conflicted file "lines"' ' + git checkout -b tweak1 side1 && + test_write_lines zero 1 2 3 4 5 6 >numbers && + git add numbers && + git mv numbers "Αυτά μου φαίνονται κινέζικα" && + git commit -m "Renamed numbers" && + + test_expect_code 1 git merge-tree --write-tree -z tweak1 side2 >out && + echo >>out && + anonymize_hash out >actual && + + # Expected results: + # "greeting" should merge with conflicts + # "whatever" has *both* a modify/delete and a file/directory conflict + # "Αυτά μου φαίνονται κινέζικα" should have a conflict + echo HASH | lf_to_nul >expect && + + q_to_tab <<-EOF | lf_to_nul >>expect && + 100644 HASH 1Qgreeting + 100644 HASH 2Qgreeting + 100644 HASH 3Qgreeting + 100644 HASH 1Qwhatever~tweak1 + 100644 HASH 2Qwhatever~tweak1 + 100644 HASH 1QΑυτά μου φαίνονται κινέζικα + 100644 HASH 2QΑυτά μου φαίνονται κινέζικα + 100644 HASH 3QΑυτά μου φαίνονται κινέζικα + + EOF + + q_to_nul <<-EOF >>expect && + 1QgreetingQAuto-mergingQAuto-merging greeting + Q1QgreetingQCONFLICT (contents)QCONFLICT (content): Merge conflict in greeting + Q2Qwhatever~tweak1QwhateverQCONFLICT (file/directory)QCONFLICT (file/directory): directory in the way of whatever from tweak1; moving it to whatever~tweak1 instead. + Q1Qwhatever~tweak1QCONFLICT (modify/delete)QCONFLICT (modify/delete): whatever~tweak1 deleted in side2 and modified in tweak1. Version tweak1 of whatever~tweak1 left in tree. + Q1QΑυτά μου φαίνονται κινέζικαQAuto-mergingQAuto-merging Αυτά μου φαίνονται κινέζικα + Q1QΑυτά μου φαίνονται κινέζικαQCONFLICT (contents)QCONFLICT (content): Merge conflict in Αυτά μου φαίνονται κινέζικα + Q + EOF + + test_cmp expect actual +' + +test_expect_success 'error out by default for unrelated histories' ' + test_expect_code 128 git merge-tree --write-tree side1 unrelated 2>error && + + grep "refusing to merge unrelated histories" error +' + +test_expect_success 'can override merge of unrelated histories' ' + git merge-tree --write-tree --allow-unrelated-histories side1 unrelated >tree && + TREE=$(cat tree) && + + git rev-parse side1:numbers side1:greeting side1:whatever unrelated:something-else >expect && + git rev-parse $TREE:numbers $TREE:greeting $TREE:whatever $TREE:something-else >actual && + + test_cmp expect actual +' + +test_expect_success SANITY 'merge-ort fails gracefully in a read-only repository' ' + git init --bare read-only && + git push read-only side1 side2 side3 && + test_when_finished "chmod -R u+w read-only" && + chmod -R a-w read-only && + test_must_fail git -C read-only merge-tree side1 side3 && + test_must_fail git -C read-only merge-tree side1 side2 +' + +test_expect_success '--stdin with both a successful and a conflicted merge' ' + printf "side1 side3\nside1 side2" | git merge-tree --stdin >actual && + + git checkout side1^0 && + git merge side3 && + + printf "1\0" >expect && + git rev-parse HEAD^{tree} | lf_to_nul >>expect && + printf "\0" >>expect && + + git checkout side1^0 && + test_must_fail git merge side2 && + sed s/HEAD/side1/ greeting >tmp && + mv tmp greeting && + git add -u && + git mv whatever~HEAD whatever~side1 && + + printf "0\0" >>expect && + git write-tree | lf_to_nul >>expect && + + cat <<-EOF | q_to_tab | lf_to_nul >>expect && + 100644 $(git rev-parse side1~1:greeting) 1Qgreeting + 100644 $(git rev-parse side1:greeting) 2Qgreeting + 100644 $(git rev-parse side2:greeting) 3Qgreeting + 100644 $(git rev-parse side1~1:whatever) 1Qwhatever~side1 + 100644 $(git rev-parse side1:whatever) 2Qwhatever~side1 + EOF + + q_to_nul <<-EOF >>expect && + Q1QgreetingQAuto-mergingQAuto-merging greeting + Q1QgreetingQCONFLICT (contents)QCONFLICT (content): Merge conflict in greeting + Q1QnumbersQAuto-mergingQAuto-merging numbers + Q2Qwhatever~side1QwhateverQCONFLICT (file/directory)QCONFLICT (file/directory): directory in the way of whatever from side1; moving it to whatever~side1 instead. + Q1Qwhatever~side1QCONFLICT (modify/delete)QCONFLICT (modify/delete): whatever~side1 deleted in side2 and modified in side1. Version side1 of whatever~side1 left in tree. + EOF + + printf "\0\0" >>expect && + + test_cmp expect actual +' + +test_done |