зеркало из https://github.com/microsoft/git.git
579 строки
13 KiB
Bash
Executable File
579 строки
13 KiB
Bash
Executable File
#!/bin/sh
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test_description="recursive merge corner cases w/ renames but not criss-crosses"
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# t6036 has corner cases that involve both criss-cross merges and renames
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. ./test-lib.sh
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test_expect_success 'setup rename/delete + untracked file' '
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echo "A pretty inscription" >ring &&
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git add ring &&
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test_tick &&
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git commit -m beginning &&
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git branch people &&
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git checkout -b rename-the-ring &&
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git mv ring one-ring-to-rule-them-all &&
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test_tick &&
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git commit -m fullname &&
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git checkout people &&
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git rm ring &&
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echo gollum >owner &&
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git add owner &&
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test_tick &&
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git commit -m track-people-instead-of-objects &&
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echo "Myyy PRECIOUSSS" >ring
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'
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test_expect_success "Does git preserve Gollum's precious artifact?" '
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test_must_fail git merge -s recursive rename-the-ring &&
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# Make sure git did not delete an untracked file
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test -f ring
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'
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# Testcase setup for rename/modify/add-source:
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# Commit A: new file: a
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# Commit B: modify a slightly
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# Commit C: rename a->b, add completely different a
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#
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# We should be able to merge B & C cleanly
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test_expect_success 'setup rename/modify/add-source conflict' '
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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printf "1\n2\n3\n4\n5\n6\n7\n" >a &&
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git add a &&
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git commit -m A &&
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git tag A &&
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git checkout -b B A &&
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echo 8 >>a &&
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git add a &&
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git commit -m B &&
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git checkout -b C A &&
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git mv a b &&
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echo something completely different >a &&
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git add a &&
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git commit -m C
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'
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test_expect_failure 'rename/modify/add-source conflict resolvable' '
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git checkout B^0 &&
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git merge -s recursive C^0 &&
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test $(git rev-parse B:a) = $(git rev-parse b) &&
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test $(git rev-parse C:a) = $(git rev-parse a)
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'
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test_expect_success 'setup resolvable conflict missed if rename missed' '
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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printf "1\n2\n3\n4\n5\n" >a &&
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echo foo >b &&
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git add a b &&
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git commit -m A &&
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git tag A &&
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git checkout -b B A &&
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git mv a c &&
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echo "Completely different content" >a &&
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git add a &&
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git commit -m B &&
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git checkout -b C A &&
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echo 6 >>a &&
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git add a &&
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git commit -m C
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'
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test_expect_failure 'conflict caused if rename not detected' '
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git checkout -q C^0 &&
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git merge -s recursive B^0 &&
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test 3 -eq $(git ls-files -s | wc -l) &&
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test 0 -eq $(git ls-files -u | wc -l) &&
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test 0 -eq $(git ls-files -o | wc -l) &&
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test 6 -eq $(wc -l < c) &&
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test $(git rev-parse HEAD:a) = $(git rev-parse B:a) &&
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test $(git rev-parse HEAD:b) = $(git rev-parse A:b)
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'
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test_expect_success 'setup conflict resolved wrong if rename missed' '
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git reset --hard &&
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git clean -f &&
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git checkout -b D A &&
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echo 7 >>a &&
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git add a &&
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git mv a c &&
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echo "Completely different content" >a &&
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git add a &&
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git commit -m D &&
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git checkout -b E A &&
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git rm a &&
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echo "Completely different content" >>a &&
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git add a &&
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git commit -m E
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'
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test_expect_failure 'missed conflict if rename not detected' '
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git checkout -q E^0 &&
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test_must_fail git merge -s recursive D^0
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'
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# Tests for undetected rename/add-source causing a file to erroneously be
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# deleted (and for mishandled rename/rename(1to1) causing the same issue).
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#
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# This test uses a rename/rename(1to1)+add-source conflict (1to1 means the
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# same file is renamed on both sides to the same thing; it should trigger
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# the 1to2 logic, which it would do if the add-source didn't cause issues
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# for git's rename detection):
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# Commit A: new file: a
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# Commit B: rename a->b
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# Commit C: rename a->b, add unrelated a
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test_expect_success 'setup undetected rename/add-source causes data loss' '
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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printf "1\n2\n3\n4\n5\n" >a &&
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git add a &&
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git commit -m A &&
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git tag A &&
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git checkout -b B A &&
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git mv a b &&
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git commit -m B &&
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git checkout -b C A &&
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git mv a b &&
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echo foobar >a &&
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git add a &&
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git commit -m C
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'
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test_expect_failure 'detect rename/add-source and preserve all data' '
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git checkout B^0 &&
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git merge -s recursive C^0 &&
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test 2 -eq $(git ls-files -s | wc -l) &&
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test 2 -eq $(git ls-files -u | wc -l) &&
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test 0 -eq $(git ls-files -o | wc -l) &&
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test -f a &&
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test -f b &&
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test $(git rev-parse HEAD:b) = $(git rev-parse A:a) &&
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test $(git rev-parse HEAD:a) = $(git rev-parse C:a)
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'
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test_expect_failure 'detect rename/add-source and preserve all data, merge other way' '
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git checkout C^0 &&
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git merge -s recursive B^0 &&
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test 2 -eq $(git ls-files -s | wc -l) &&
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test 2 -eq $(git ls-files -u | wc -l) &&
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test 0 -eq $(git ls-files -o | wc -l) &&
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test -f a &&
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test -f b &&
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test $(git rev-parse HEAD:b) = $(git rev-parse A:a) &&
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test $(git rev-parse HEAD:a) = $(git rev-parse C:a)
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'
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test_expect_success 'setup content merge + rename/directory conflict' '
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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printf "1\n2\n3\n4\n5\n6\n" >file &&
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git add file &&
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test_tick &&
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git commit -m base &&
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git tag base &&
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git checkout -b right &&
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echo 7 >>file &&
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mkdir newfile &&
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echo junk >newfile/realfile &&
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git add file newfile/realfile &&
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test_tick &&
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git commit -m right &&
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git checkout -b left-conflict base &&
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echo 8 >>file &&
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git add file &&
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git mv file newfile &&
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test_tick &&
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git commit -m left &&
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git checkout -b left-clean base &&
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echo 0 >newfile &&
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cat file >>newfile &&
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git add newfile &&
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git rm file &&
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test_tick &&
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git commit -m left
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'
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test_expect_success 'rename/directory conflict + clean content merge' '
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git reset --hard &&
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git reset --hard &&
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git clean -fdqx &&
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git checkout left-clean^0 &&
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test_must_fail git merge -s recursive right^0 &&
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test 2 -eq $(git ls-files -s | wc -l) &&
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test 1 -eq $(git ls-files -u | wc -l) &&
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test 1 -eq $(git ls-files -o | wc -l) &&
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echo 0 >expect &&
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git cat-file -p base:file >>expect &&
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echo 7 >>expect &&
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test_cmp expect newfile~HEAD &&
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test $(git rev-parse :2:newfile) = $(git hash-object expect) &&
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test -f newfile/realfile &&
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test -f newfile~HEAD
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'
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test_expect_success 'rename/directory conflict + content merge conflict' '
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git reset --hard &&
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git reset --hard &&
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git clean -fdqx &&
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git checkout left-conflict^0 &&
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test_must_fail git merge -s recursive right^0 &&
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test 4 -eq $(git ls-files -s | wc -l) &&
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test 3 -eq $(git ls-files -u | wc -l) &&
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test 1 -eq $(git ls-files -o | wc -l) &&
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git cat-file -p left-conflict:newfile >left &&
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git cat-file -p base:file >base &&
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git cat-file -p right:file >right &&
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test_must_fail git merge-file \
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-L "HEAD:newfile" \
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-L "" \
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-L "right^0:file" \
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left base right &&
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test_cmp left newfile~HEAD &&
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test $(git rev-parse :1:newfile) = $(git rev-parse base:file) &&
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test $(git rev-parse :2:newfile) = $(git rev-parse left-conflict:newfile) &&
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test $(git rev-parse :3:newfile) = $(git rev-parse right:file) &&
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test -f newfile/realfile &&
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test -f newfile~HEAD
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'
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test_expect_success 'setup content merge + rename/directory conflict w/ disappearing dir' '
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git reset --hard &&
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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mkdir sub &&
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printf "1\n2\n3\n4\n5\n6\n" >sub/file &&
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git add sub/file &&
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test_tick &&
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git commit -m base &&
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git tag base &&
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git checkout -b right &&
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echo 7 >>sub/file &&
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git add sub/file &&
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test_tick &&
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git commit -m right &&
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git checkout -b left base &&
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echo 0 >newfile &&
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cat sub/file >>newfile &&
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git rm sub/file &&
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mv newfile sub &&
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git add sub &&
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test_tick &&
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git commit -m left
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'
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test_expect_success 'disappearing dir in rename/directory conflict handled' '
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git reset --hard &&
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git clean -fdqx &&
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git checkout left^0 &&
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git merge -s recursive right^0 &&
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test 1 -eq $(git ls-files -s | wc -l) &&
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test 0 -eq $(git ls-files -u | wc -l) &&
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test 0 -eq $(git ls-files -o | wc -l) &&
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echo 0 >expect &&
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git cat-file -p base:sub/file >>expect &&
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echo 7 >>expect &&
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test_cmp expect sub &&
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test -f sub
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'
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# Test for all kinds of things that can go wrong with rename/rename (2to1):
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# Commit A: new files: a & b
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# Commit B: rename a->c, modify b
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# Commit C: rename b->c, modify a
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#
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# Merging of B & C should NOT be clean. Questions:
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# * Both a & b should be removed by the merge; are they?
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# * The two c's should contain modifications to a & b; do they?
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# * The index should contain two files, both for c; does it?
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# * The working copy should have two files, both of form c~<unique>; does it?
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# * Nothing else should be present. Is anything?
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test_expect_success 'setup rename/rename (2to1) + modify/modify' '
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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printf "1\n2\n3\n4\n5\n" >a &&
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printf "5\n4\n3\n2\n1\n" >b &&
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git add a b &&
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git commit -m A &&
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git tag A &&
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git checkout -b B A &&
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git mv a c &&
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echo 0 >>b &&
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git add b &&
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git commit -m B &&
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git checkout -b C A &&
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git mv b c &&
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echo 6 >>a &&
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git add a &&
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git commit -m C
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'
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test_expect_success 'handle rename/rename (2to1) conflict correctly' '
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git checkout B^0 &&
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test_must_fail git merge -s recursive C^0 >out &&
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grep "CONFLICT (rename/rename)" out &&
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test 2 -eq $(git ls-files -s | wc -l) &&
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test 2 -eq $(git ls-files -u | wc -l) &&
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test 2 -eq $(git ls-files -u c | wc -l) &&
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test 3 -eq $(git ls-files -o | wc -l) &&
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test ! -f a &&
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test ! -f b &&
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test -f c~HEAD &&
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test -f c~C^0 &&
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test $(git hash-object c~HEAD) = $(git rev-parse C:a) &&
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test $(git hash-object c~C^0) = $(git rev-parse B:b)
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'
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# Testcase setup for simple rename/rename (1to2) conflict:
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# Commit A: new file: a
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# Commit B: rename a->b
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# Commit C: rename a->c
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test_expect_success 'setup simple rename/rename (1to2) conflict' '
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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echo stuff >a &&
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git add a &&
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test_tick &&
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git commit -m A &&
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git tag A &&
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git checkout -b B A &&
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git mv a b &&
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test_tick &&
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git commit -m B &&
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git checkout -b C A &&
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git mv a c &&
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test_tick &&
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git commit -m C
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'
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test_expect_success 'merge has correct working tree contents' '
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git checkout C^0 &&
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test_must_fail git merge -s recursive B^0 &&
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test 3 -eq $(git ls-files -s | wc -l) &&
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test 3 -eq $(git ls-files -u | wc -l) &&
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test 0 -eq $(git ls-files -o | wc -l) &&
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test $(git rev-parse :1:a) = $(git rev-parse A:a) &&
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test $(git rev-parse :3:b) = $(git rev-parse A:a) &&
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test $(git rev-parse :2:c) = $(git rev-parse A:a) &&
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test ! -f a &&
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test $(git hash-object b) = $(git rev-parse A:a) &&
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test $(git hash-object c) = $(git rev-parse A:a)
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'
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# Testcase setup for rename/rename(1to2)/add-source conflict:
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# Commit A: new file: a
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# Commit B: rename a->b
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# Commit C: rename a->c, add completely different a
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#
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# Merging of B & C should NOT be clean; there's a rename/rename conflict
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test_expect_success 'setup rename/rename(1to2)/add-source conflict' '
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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printf "1\n2\n3\n4\n5\n6\n7\n" >a &&
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git add a &&
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git commit -m A &&
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git tag A &&
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git checkout -b B A &&
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git mv a b &&
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git commit -m B &&
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git checkout -b C A &&
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git mv a c &&
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echo something completely different >a &&
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git add a &&
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git commit -m C
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'
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test_expect_failure 'detect conflict with rename/rename(1to2)/add-source merge' '
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git checkout B^0 &&
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test_must_fail git merge -s recursive C^0 &&
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test 4 -eq $(git ls-files -s | wc -l) &&
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test 0 -eq $(git ls-files -o | wc -l) &&
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test $(git rev-parse 3:a) = $(git rev-parse C:a) &&
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test $(git rev-parse 1:a) = $(git rev-parse A:a) &&
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test $(git rev-parse 2:b) = $(git rev-parse B:b) &&
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test $(git rev-parse 3:c) = $(git rev-parse C:c) &&
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test -f a &&
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test -f b &&
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test -f c
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'
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test_expect_success 'setup rename/rename(1to2)/add-source resolvable conflict' '
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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>a &&
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git add a &&
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test_tick &&
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git commit -m base &&
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git tag A &&
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git checkout -b B A &&
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git mv a b &&
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test_tick &&
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git commit -m one &&
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git checkout -b C A &&
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git mv a b &&
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echo important-info >a &&
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git add a &&
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test_tick &&
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git commit -m two
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'
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test_expect_failure 'rename/rename/add-source still tracks new a file' '
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git checkout C^0 &&
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git merge -s recursive B^0 &&
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test 2 -eq $(git ls-files -s | wc -l) &&
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test 0 -eq $(git ls-files -o | wc -l) &&
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test $(git rev-parse HEAD:a) = $(git rev-parse C:a) &&
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test $(git rev-parse HEAD:b) = $(git rev-parse A:a)
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'
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test_expect_success 'setup rename/rename(1to2)/add-dest conflict' '
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git rm -rf . &&
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git clean -fdqx &&
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rm -rf .git &&
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git init &&
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echo stuff >a &&
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git add a &&
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test_tick &&
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git commit -m base &&
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git tag A &&
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git checkout -b B A &&
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git mv a b &&
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echo precious-data >c &&
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git add c &&
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test_tick &&
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git commit -m one &&
|
|
|
|
git checkout -b C A &&
|
|
git mv a c &&
|
|
echo important-info >b &&
|
|
git add b &&
|
|
test_tick &&
|
|
git commit -m two
|
|
'
|
|
|
|
test_expect_success 'rename/rename/add-dest merge still knows about conflicting file versions' '
|
|
git checkout C^0 &&
|
|
test_must_fail git merge -s recursive B^0 &&
|
|
|
|
test 5 -eq $(git ls-files -s | wc -l) &&
|
|
test 2 -eq $(git ls-files -u b | wc -l) &&
|
|
test 2 -eq $(git ls-files -u c | wc -l) &&
|
|
test 4 -eq $(git ls-files -o | wc -l) &&
|
|
|
|
test $(git rev-parse :1:a) = $(git rev-parse A:a) &&
|
|
test $(git rev-parse :2:b) = $(git rev-parse C:b) &&
|
|
test $(git rev-parse :3:b) = $(git rev-parse B:b) &&
|
|
test $(git rev-parse :2:c) = $(git rev-parse C:c) &&
|
|
test $(git rev-parse :3:c) = $(git rev-parse B:c) &&
|
|
|
|
test $(git hash-object c~HEAD) = $(git rev-parse C:c) &&
|
|
test $(git hash-object c~B\^0) = $(git rev-parse B:c) &&
|
|
test $(git hash-object b~HEAD) = $(git rev-parse C:b) &&
|
|
test $(git hash-object b~B\^0) = $(git rev-parse B:b) &&
|
|
|
|
test ! -f b &&
|
|
test ! -f c
|
|
'
|
|
|
|
test_done
|