#!/bin/sh test_description="recursive merge corner cases w/ renames but not criss-crosses" # t6036 has corner cases that involve both criss-cross merges and renames . ./test-lib.sh test_expect_success 'setup rename/delete + untracked file' ' echo "A pretty inscription" >ring && git add ring && test_tick && git commit -m beginning && git branch people && git checkout -b rename-the-ring && git mv ring one-ring-to-rule-them-all && test_tick && git commit -m fullname && git checkout people && git rm ring && echo gollum >owner && git add owner && test_tick && git commit -m track-people-instead-of-objects && echo "Myyy PRECIOUSSS" >ring ' test_expect_success "Does git preserve Gollum's precious artifact?" ' test_must_fail git merge -s recursive rename-the-ring && # Make sure git did not delete an untracked file test -f ring ' # Testcase setup for rename/modify/add-source: # Commit A: new file: a # Commit B: modify a slightly # Commit C: rename a->b, add completely different a # # We should be able to merge B & C cleanly test_expect_success 'setup rename/modify/add-source conflict' ' git rm -rf . && git clean -fdqx && rm -rf .git && git init && printf "1\n2\n3\n4\n5\n6\n7\n" >a && git add a && git commit -m A && git tag A && git checkout -b B A && echo 8 >>a && git add a && git commit -m B && git checkout -b C A && git mv a b && echo something completely different >a && git add a && git commit -m C ' test_expect_failure 'rename/modify/add-source conflict resolvable' ' git checkout B^0 && git merge -s recursive C^0 && test $(git rev-parse B:a) = $(git rev-parse b) && test $(git rev-parse C:a) = $(git rev-parse a) ' test_expect_success 'setup resolvable conflict missed if rename missed' ' git rm -rf . && git clean -fdqx && rm -rf .git && git init && printf "1\n2\n3\n4\n5\n" >a && echo foo >b && git add a b && git commit -m A && git tag A && git checkout -b B A && git mv a c && echo "Completely different content" >a && git add a && git commit -m B && git checkout -b C A && echo 6 >>a && git add a && git commit -m C ' test_expect_failure 'conflict caused if rename not detected' ' git checkout -q C^0 && git merge -s recursive B^0 && test 3 -eq $(git ls-files -s | wc -l) && test 0 -eq $(git ls-files -u | wc -l) && test 0 -eq $(git ls-files -o | wc -l) && test_line_count = 6 c && test $(git rev-parse HEAD:a) = $(git rev-parse B:a) && test $(git rev-parse HEAD:b) = $(git rev-parse A:b) ' test_expect_success 'setup conflict resolved wrong if rename missed' ' git reset --hard && git clean -f && git checkout -b D A && echo 7 >>a && git add a && git mv a c && echo "Completely different content" >a && git add a && git commit -m D && git checkout -b E A && git rm a && echo "Completely different content" >>a && git add a && git commit -m E ' test_expect_failure 'missed conflict if rename not detected' ' git checkout -q E^0 && test_must_fail git merge -s recursive D^0 ' # Tests for undetected rename/add-source causing a file to erroneously be # deleted (and for mishandled rename/rename(1to1) causing the same issue). # # This test uses a rename/rename(1to1)+add-source conflict (1to1 means the # same file is renamed on both sides to the same thing; it should trigger # the 1to2 logic, which it would do if the add-source didn't cause issues # for git's rename detection): # Commit A: new file: a # Commit B: rename a->b # Commit C: rename a->b, add unrelated a test_expect_success 'setup undetected rename/add-source causes data loss' ' git rm -rf . && git clean -fdqx && rm -rf .git && git init && printf "1\n2\n3\n4\n5\n" >a && git add a && git commit -m A && git tag A && git checkout -b B A && git mv a b && git commit -m B && git checkout -b C A && git mv a b && echo foobar >a && git add a && git commit -m C ' test_expect_failure 'detect rename/add-source and preserve all data' ' git checkout B^0 && git merge -s recursive C^0 && test 2 -eq $(git ls-files -s | wc -l) && test 2 -eq $(git ls-files -u | wc -l) && test 0 -eq $(git ls-files -o | wc -l) && test -f a && test -f b && test $(git rev-parse HEAD:b) = $(git rev-parse A:a) && test $(git rev-parse HEAD:a) = $(git rev-parse C:a) ' test_expect_failure 'detect rename/add-source and preserve all data, merge other way' ' git checkout C^0 && git merge -s recursive B^0 && test 2 -eq $(git ls-files -s | wc -l) && test 2 -eq $(git ls-files -u | wc -l) && test 0 -eq $(git ls-files -o | wc -l) && test -f a && test -f b && test $(git rev-parse HEAD:b) = $(git rev-parse A:a) && test $(git rev-parse HEAD:a) = $(git rev-parse C:a) ' test_expect_success 'setup content merge + rename/directory conflict' ' git rm -rf . && git clean -fdqx && rm -rf .git && git init && printf "1\n2\n3\n4\n5\n6\n" >file && git add file && test_tick && git commit -m base && git tag base && git checkout -b right && echo 7 >>file && mkdir newfile && echo junk >newfile/realfile && git add file newfile/realfile && test_tick && git commit -m right && git checkout -b left-conflict base && echo 8 >>file && git add file && git mv file newfile && test_tick && git commit -m left && git checkout -b left-clean base && echo 0 >newfile && cat file >>newfile && git add newfile && git rm file && test_tick && git commit -m left ' test_expect_success 'rename/directory conflict + clean content merge' ' git reset --hard && git reset --hard && git clean -fdqx && git checkout left-clean^0 && test_must_fail git merge -s recursive right^0 && test 2 -eq $(git ls-files -s | wc -l) && test 1 -eq $(git ls-files -u | wc -l) && test 1 -eq $(git ls-files -o | wc -l) && echo 0 >expect && git cat-file -p base:file >>expect && echo 7 >>expect && test_cmp expect newfile~HEAD && test $(git rev-parse :2:newfile) = $(git hash-object expect) && test -f newfile/realfile && test -f newfile~HEAD ' test_expect_success 'rename/directory conflict + content merge conflict' ' git reset --hard && git reset --hard && git clean -fdqx && git checkout left-conflict^0 && test_must_fail git merge -s recursive right^0 && test 4 -eq $(git ls-files -s | wc -l) && test 3 -eq $(git ls-files -u | wc -l) && test 1 -eq $(git ls-files -o | wc -l) && git cat-file -p left-conflict:newfile >left && git cat-file -p base:file >base && git cat-file -p right:file >right && test_must_fail git merge-file \ -L "HEAD:newfile" \ -L "" \ -L "right^0:file" \ left base right && test_cmp left newfile~HEAD && test $(git rev-parse :1:newfile) = $(git rev-parse base:file) && test $(git rev-parse :2:newfile) = $(git rev-parse left-conflict:newfile) && test $(git rev-parse :3:newfile) = $(git rev-parse right:file) && test -f newfile/realfile && test -f newfile~HEAD ' test_expect_success 'setup content merge + rename/directory conflict w/ disappearing dir' ' git reset --hard && git rm -rf . && git clean -fdqx && rm -rf .git && git init && mkdir sub && printf "1\n2\n3\n4\n5\n6\n" >sub/file && git add sub/file && test_tick && git commit -m base && git tag base && git checkout -b right && echo 7 >>sub/file && git add sub/file && test_tick && git commit -m right && git checkout -b left base && echo 0 >newfile && cat sub/file >>newfile && git rm sub/file && mv newfile sub && git add sub && test_tick && git commit -m left ' test_expect_success 'disappearing dir in rename/directory conflict handled' ' git reset --hard && git clean -fdqx && git checkout left^0 && git merge -s recursive right^0 && test 1 -eq $(git ls-files -s | wc -l) && test 0 -eq $(git ls-files -u | wc -l) && test 0 -eq $(git ls-files -o | wc -l) && echo 0 >expect && git cat-file -p base:sub/file >>expect && echo 7 >>expect && test_cmp expect sub && test -f sub ' # Test for all kinds of things that can go wrong with rename/rename (2to1): # Commit A: new files: a & b # Commit B: rename a->c, modify b # Commit C: rename b->c, modify a # # Merging of B & C should NOT be clean. Questions: # * Both a & b should be removed by the merge; are they? # * The two c's should contain modifications to a & b; do they? # * The index should contain two files, both for c; does it? # * The working copy should have two files, both of form c~; does it? # * Nothing else should be present. Is anything? test_expect_success 'setup rename/rename (2to1) + modify/modify' ' git rm -rf . && git clean -fdqx && rm -rf .git && git init && printf "1\n2\n3\n4\n5\n" >a && printf "5\n4\n3\n2\n1\n" >b && git add a b && git commit -m A && git tag A && git checkout -b B A && git mv a c && echo 0 >>b && git add b && git commit -m B && git checkout -b C A && git mv b c && echo 6 >>a && git add a && git commit -m C ' test_expect_success 'handle rename/rename (2to1) conflict correctly' ' git checkout B^0 && test_must_fail git merge -s recursive C^0 >out && test_i18ngrep "CONFLICT (rename/rename)" out && test 2 -eq $(git ls-files -s | wc -l) && test 2 -eq $(git ls-files -u | wc -l) && test 2 -eq $(git ls-files -u c | wc -l) && test 3 -eq $(git ls-files -o | wc -l) && test ! -f a && test ! -f b && test -f c~HEAD && test -f c~C^0 && test $(git hash-object c~HEAD) = $(git rev-parse C:a) && test $(git hash-object c~C^0) = $(git rev-parse B:b) ' # Testcase setup for simple rename/rename (1to2) conflict: # Commit A: new file: a # Commit B: rename a->b # Commit C: rename a->c test_expect_success 'setup simple rename/rename (1to2) conflict' ' git rm -rf . && git clean -fdqx && rm -rf .git && git init && echo stuff >a && git add a && test_tick && git commit -m A && git tag A && git checkout -b B A && git mv a b && test_tick && git commit -m B && git checkout -b C A && git mv a c && test_tick && git commit -m C ' test_expect_success 'merge has correct working tree contents' ' git checkout C^0 && test_must_fail git merge -s recursive B^0 && test 3 -eq $(git ls-files -s | wc -l) && test 3 -eq $(git ls-files -u | wc -l) && test 0 -eq $(git ls-files -o | wc -l) && test $(git rev-parse :1:a) = $(git rev-parse A:a) && test $(git rev-parse :3:b) = $(git rev-parse A:a) && test $(git rev-parse :2:c) = $(git rev-parse A:a) && test ! -f a && test $(git hash-object b) = $(git rev-parse A:a) && test $(git hash-object c) = $(git rev-parse A:a) ' # Testcase setup for rename/rename(1to2)/add-source conflict: # Commit A: new file: a # Commit B: rename a->b # Commit C: rename a->c, add completely different a # # Merging of B & C should NOT be clean; there's a rename/rename conflict test_expect_success 'setup rename/rename(1to2)/add-source conflict' ' git rm -rf . && git clean -fdqx && rm -rf .git && git init && printf "1\n2\n3\n4\n5\n6\n7\n" >a && git add a && git commit -m A && git tag A && git checkout -b B A && git mv a b && git commit -m B && git checkout -b C A && git mv a c && echo something completely different >a && git add a && git commit -m C ' test_expect_failure 'detect conflict with rename/rename(1to2)/add-source merge' ' git checkout B^0 && test_must_fail git merge -s recursive C^0 && test 4 -eq $(git ls-files -s | wc -l) && test 0 -eq $(git ls-files -o | wc -l) && test $(git rev-parse 3:a) = $(git rev-parse C:a) && test $(git rev-parse 1:a) = $(git rev-parse A:a) && test $(git rev-parse 2:b) = $(git rev-parse B:b) && test $(git rev-parse 3:c) = $(git rev-parse C:c) && test -f a && test -f b && test -f c ' test_expect_success 'setup rename/rename(1to2)/add-source resolvable conflict' ' git rm -rf . && git clean -fdqx && rm -rf .git && git init && >a && git add a && test_tick && git commit -m base && git tag A && git checkout -b B A && git mv a b && test_tick && git commit -m one && git checkout -b C A && git mv a b && echo important-info >a && git add a && test_tick && git commit -m two ' test_expect_failure 'rename/rename/add-source still tracks new a file' ' git checkout C^0 && git merge -s recursive B^0 && test 2 -eq $(git ls-files -s | wc -l) && test 0 -eq $(git ls-files -o | wc -l) && test $(git rev-parse HEAD:a) = $(git rev-parse C:a) && test $(git rev-parse HEAD:b) = $(git rev-parse A:a) ' test_expect_success 'setup rename/rename(1to2)/add-dest conflict' ' git rm -rf . && git clean -fdqx && rm -rf .git && git init && echo stuff >a && git add a && test_tick && git commit -m base && git tag A && git checkout -b B A && git mv a b && echo precious-data >c && git add c && test_tick && 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