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696 lines
15 KiB
696 lines
15 KiB
#!/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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test_create_repo rename-delete-untracked && |
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( |
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cd rename-delete-untracked && |
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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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' |
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test_expect_success "Does git preserve Gollum's precious artifact?" ' |
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( |
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cd rename-delete-untracked && |
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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_path_is_file ring |
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) |
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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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test_create_repo rename-modify-add-source && |
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( |
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cd rename-modify-add-source && |
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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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' |
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test_expect_failure 'rename/modify/add-source conflict resolvable' ' |
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( |
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cd rename-modify-add-source && |
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git checkout B^0 && |
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git merge -s recursive C^0 && |
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git rev-parse >expect \ |
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B:a C:a && |
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git rev-parse >actual \ |
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b c && |
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test_cmp expect actual |
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) |
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' |
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test_expect_success 'setup resolvable conflict missed if rename missed' ' |
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test_create_repo break-detection-1 && |
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( |
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cd break-detection-1 && |
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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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' |
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test_expect_failure 'conflict caused if rename not detected' ' |
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( |
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cd break-detection-1 && |
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git checkout -q C^0 && |
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git merge -s recursive B^0 && |
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git ls-files -s >out && |
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test_line_count = 3 out && |
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git ls-files -u >out && |
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test_line_count = 0 out && |
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git ls-files -o >out && |
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test_line_count = 1 out && |
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test_line_count = 6 c && |
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git rev-parse >expect \ |
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B:a A:b && |
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git rev-parse >actual \ |
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:0:a :0:b && |
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test_cmp expect actual |
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) |
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' |
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test_expect_success 'setup conflict resolved wrong if rename missed' ' |
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test_create_repo break-detection-2 && |
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( |
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cd break-detection-2 && |
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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 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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' |
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test_expect_failure 'missed conflict if rename not detected' ' |
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( |
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cd break-detection-2 && |
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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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' |
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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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test_create_repo break-detection-3 && |
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( |
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cd break-detection-3 && |
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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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' |
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test_expect_failure 'detect rename/add-source and preserve all data' ' |
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( |
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cd break-detection-3 && |
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git checkout B^0 && |
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git merge -s recursive C^0 && |
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git ls-files -s >out && |
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test_line_count = 2 out && |
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git ls-files -u >out && |
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test_line_count = 2 out && |
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git ls-files -o >out && |
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test_line_count = 1 out && |
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test_path_is_file a && |
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test_path_is_file b && |
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git rev-parse >expect \ |
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A:a C:a && |
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git rev-parse >actual \ |
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:0:b :0:a && |
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test_cmp expect actual |
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) |
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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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( |
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cd break-detection-3 && |
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git checkout C^0 && |
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git merge -s recursive B^0 && |
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git ls-files -s >out && |
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test_line_count = 2 out && |
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git ls-files -u >out && |
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test_line_count = 2 out && |
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git ls-files -o >out && |
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test_line_count = 1 out && |
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test_path_is_file a && |
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test_path_is_file b && |
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git rev-parse >expect \ |
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A:a C:a && |
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git rev-parse >actual \ |
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:0:b :0:a && |
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test_cmp expect actual |
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) |
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' |
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test_expect_success 'setup content merge + rename/directory conflict' ' |
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test_create_repo rename-directory-1 && |
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( |
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cd rename-directory-1 && |
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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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' |
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test_expect_success 'rename/directory conflict + clean content merge' ' |
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( |
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cd rename-directory-1 && |
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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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git ls-files -s >out && |
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test_line_count = 2 out && |
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git ls-files -u >out && |
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test_line_count = 1 out && |
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git ls-files -o >out && |
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test_line_count = 2 out && |
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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_path_is_file newfile/realfile && |
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test_path_is_file newfile~HEAD |
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) |
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' |
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test_expect_success 'rename/directory conflict + content merge conflict' ' |
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( |
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cd rename-directory-1 && |
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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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git ls-files -s >out && |
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test_line_count = 4 out && |
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git ls-files -u >out && |
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test_line_count = 3 out && |
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git ls-files -o >out && |
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test_line_count = 2 out && |
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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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git rev-parse >expect \ |
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base:file left-conflict:newfile right:file && |
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git rev-parse >actual \ |
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:1:newfile :2:newfile :3:newfile && |
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test_cmp expect actual |
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test_path_is_file newfile/realfile && |
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test_path_is_file newfile~HEAD |
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) |
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' |
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test_expect_success 'setup content merge + rename/directory conflict w/ disappearing dir' ' |
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test_create_repo rename-directory-2 && |
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( |
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cd rename-directory-2 && |
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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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' |
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test_expect_success 'disappearing dir in rename/directory conflict handled' ' |
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( |
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cd rename-directory-2 && |
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git checkout left^0 && |
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git merge -s recursive right^0 && |
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git ls-files -s >out && |
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test_line_count = 1 out && |
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git ls-files -u >out && |
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test_line_count = 0 out && |
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git ls-files -o >out && |
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test_line_count = 1 out && |
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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_path_is_file sub |
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) |
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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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test_create_repo rename-rename-2to1 && |
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( |
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cd rename-rename-2to1 && |
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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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' |
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test_expect_success 'handle rename/rename (2to1) conflict correctly' ' |
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( |
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cd rename-rename-2to1 && |
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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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test_i18ngrep "CONFLICT (rename/rename)" out && |
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git ls-files -s >out && |
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test_line_count = 2 out && |
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git ls-files -u >out && |
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test_line_count = 2 out && |
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git ls-files -u c >out && |
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test_line_count = 2 out && |
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git ls-files -o >out && |
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test_line_count = 3 out && |
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test_path_is_missing a && |
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test_path_is_missing b && |
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test_path_is_file c~HEAD && |
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test_path_is_file c~C^0 && |
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git rev-parse >expect \ |
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C:a B:b && |
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git hash-object >actual \ |
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c~HEAD c~C^0 && |
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test_cmp expect actual |
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) |
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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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test_create_repo rename-rename-1to2 && |
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( |
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cd rename-rename-1to2 && |
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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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' |
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test_expect_success 'merge has correct working tree contents' ' |
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( |
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cd rename-rename-1to2 && |
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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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git ls-files -s >out && |
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test_line_count = 3 out && |
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git ls-files -u >out && |
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test_line_count = 3 out && |
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git ls-files -o >out && |
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test_line_count = 1 out && |
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test_path_is_missing a && |
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git rev-parse >expect \ |
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A:a A:a A:a \ |
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A:a A:a && |
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git rev-parse >actual \ |
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:1:a :3:b :2:c && |
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git hash-object >>actual \ |
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b c && |
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test_cmp expect actual |
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) |
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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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test_create_repo rename-rename-1to2-add-source-1 && |
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( |
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cd rename-rename-1to2-add-source-1 && |
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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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' |
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test_expect_failure 'detect conflict with rename/rename(1to2)/add-source merge' ' |
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( |
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cd rename-rename-1to2-add-source-1 && |
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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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git ls-files -s >out && |
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test_line_count = 4 out && |
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git ls-files -o >out && |
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test_line_count = 1 out && |
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git rev-parse >expect \ |
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C:a A:a B:b C:C && |
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git rev-parse >actual \ |
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:3:a :1:a :2:b :3:c && |
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test_cmp expect actual |
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test_path_is_file a && |
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test_path_is_file b && |
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test_path_is_file c |
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) |
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' |
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test_expect_success 'setup rename/rename(1to2)/add-source resolvable conflict' ' |
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test_create_repo rename-rename-1to2-add-source-2 && |
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( |
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cd rename-rename-1to2-add-source-2 && |
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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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' |
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test_expect_failure 'rename/rename/add-source still tracks new a file' ' |
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( |
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cd rename-rename-1to2-add-source-2 && |
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git checkout C^0 && |
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git merge -s recursive B^0 && |
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git ls-files -s >out && |
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test_line_count = 2 out && |
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git ls-files -o >out && |
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test_line_count = 1 out && |
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git rev-parse >expect \ |
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C:a A:a && |
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git rev-parse >actual \ |
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:0:a :0:b && |
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test_cmp expect actual |
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) |
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' |
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test_expect_success 'setup rename/rename(1to2)/add-dest conflict' ' |
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test_create_repo rename-rename-1to2-add-dest && |
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( |
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cd rename-rename-1to2-add-dest && |
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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 && |
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git checkout -b C A && |
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git mv a c && |
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echo important-info >b && |
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git add b && |
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test_tick && |
|
git commit -m two |
|
) |
|
' |
|
|
|
test_expect_success 'rename/rename/add-dest merge still knows about conflicting file versions' ' |
|
( |
|
cd rename-rename-1to2-add-dest && |
|
|
|
git checkout C^0 && |
|
test_must_fail git merge -s recursive B^0 && |
|
|
|
git ls-files -s >out && |
|
test_line_count = 5 out && |
|
git ls-files -u b >out && |
|
test_line_count = 2 out && |
|
git ls-files -u c >out && |
|
test_line_count = 2 out && |
|
git ls-files -o >out && |
|
test_line_count = 5 out && |
|
|
|
git rev-parse >expect \ |
|
A:a C:b B:b C:c B:c && |
|
git rev-parse >actual \ |
|
:1:a :2:b :3:b :2:c :3:c && |
|
test_cmp expect actual |
|
|
|
git rev-parse >expect \ |
|
C:c B:c C:b B:b && |
|
git hash-object >actual \ |
|
c~HEAD c~B\^0 b~HEAD b~B\^0 && |
|
test_cmp expect actual |
|
|
|
test_path_is_missing b && |
|
test_path_is_missing c |
|
) |
|
' |
|
|
|
test_done
|
|
|