| #!/bin/sh |
| |
| test_description='merge-recursive rename options |
| |
| Test rename detection by examining rename/delete conflicts. |
| |
| * (HEAD -> rename) rename |
| | * (main) delete |
| |/ |
| * base |
| |
| git diff --name-status base main |
| D 0-old |
| D 1-old |
| D 2-old |
| D 3-old |
| |
| git diff --name-status -M01 base rename |
| R025 0-old 0-new |
| R050 1-old 1-new |
| R075 2-old 2-new |
| R100 3-old 3-new |
| |
| Actual similarity indices are parsed from diff output. We rely on the fact that |
| they are rounded down (see, e.g., Documentation/diff-generate-patch.txt, which |
| mentions this in a different context). |
| ' |
| |
| GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main |
| export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME |
| |
| . ./test-lib.sh |
| |
| get_expected_stages () { |
| git checkout rename -- $1-new && |
| git ls-files --stage $1-new >expected-stages-undetected-$1 && |
| sed "s/ 0 / 2 /" <expected-stages-undetected-$1 \ |
| >expected-stages-detected-$1 && |
| git read-tree -u --reset HEAD |
| } |
| |
| rename_detected () { |
| git ls-files --stage $1-old $1-new >stages-actual-$1 && |
| test_cmp expected-stages-detected-$1 stages-actual-$1 |
| } |
| |
| rename_undetected () { |
| git ls-files --stage $1-old $1-new >stages-actual-$1 && |
| test_cmp expected-stages-undetected-$1 stages-actual-$1 |
| } |
| |
| check_common () { |
| git ls-files --stage >stages-actual && |
| test_line_count = 4 stages-actual |
| } |
| |
| check_threshold_0 () { |
| check_common && |
| rename_detected 0 && |
| rename_detected 1 && |
| rename_detected 2 && |
| rename_detected 3 |
| } |
| |
| check_threshold_1 () { |
| check_common && |
| rename_undetected 0 && |
| rename_detected 1 && |
| rename_detected 2 && |
| rename_detected 3 |
| } |
| |
| check_threshold_2 () { |
| check_common && |
| rename_undetected 0 && |
| rename_undetected 1 && |
| rename_detected 2 && |
| rename_detected 3 |
| } |
| |
| check_exact_renames () { |
| check_common && |
| rename_undetected 0 && |
| rename_undetected 1 && |
| rename_undetected 2 && |
| rename_detected 3 |
| } |
| |
| check_no_renames () { |
| check_common && |
| rename_undetected 0 && |
| rename_undetected 1 && |
| rename_undetected 2 && |
| rename_undetected 3 |
| } |
| |
| test_expect_success 'setup repo' ' |
| cat <<-\EOF >3-old && |
| 33a |
| 33b |
| 33c |
| 33d |
| EOF |
| sed s/33/22/ <3-old >2-old && |
| sed s/33/11/ <3-old >1-old && |
| sed s/33/00/ <3-old >0-old && |
| git add [0-3]-old && |
| git commit -m base && |
| git rm [0-3]-old && |
| git commit -m delete && |
| git checkout -b rename HEAD^ && |
| cp 3-old 3-new && |
| sed 1,1s/./x/ <2-old >2-new && |
| sed 1,2s/./x/ <1-old >1-new && |
| sed 1,3s/./x/ <0-old >0-new && |
| git add [0-3]-new && |
| git rm [0-3]-old && |
| git commit -m rename && |
| get_expected_stages 0 && |
| get_expected_stages 1 && |
| get_expected_stages 2 && |
| get_expected_stages 3 && |
| check_50="false" && |
| tail="HEAD^ -- HEAD main" |
| ' |
| |
| test_expect_success 'setup thresholds' ' |
| git diff --name-status -M01 HEAD^ HEAD >diff-output && |
| test_debug "cat diff-output" && |
| test_line_count = 4 diff-output && |
| grep "R[0-9][0-9][0-9] \([0-3]\)-old \1-new" diff-output \ |
| >grep-output && |
| test_cmp diff-output grep-output && |
| th0=$(sed -n "s/R\(...\) 0-old 0-new/\1/p" <diff-output) && |
| th1=$(sed -n "s/R\(...\) 1-old 1-new/\1/p" <diff-output) && |
| th2=$(sed -n "s/R\(...\) 2-old 2-new/\1/p" <diff-output) && |
| th3=$(sed -n "s/R\(...\) 3-old 3-new/\1/p" <diff-output) && |
| test "$th0" -lt "$th1" && |
| test "$th1" -lt "$th2" && |
| test "$th2" -lt "$th3" && |
| test "$th3" = 100 && |
| if test 50 -le "$th0" |
| then |
| check_50=check_threshold_0 |
| elif test 50 -le "$th1" |
| then |
| check_50=check_threshold_1 |
| elif test 50 -le "$th2" |
| then |
| check_50=check_threshold_2 |
| fi && |
| th0="$th0%" && |
| th1="$th1%" && |
| th2="$th2%" && |
| th3="$th3%" |
| ' |
| |
| test_expect_success 'assumption for tests: rename detection with diff' ' |
| git diff --name-status -M$th0 --diff-filter=R HEAD^ HEAD \ |
| >diff-output-0 && |
| git diff --name-status -M$th1 --diff-filter=R HEAD^ HEAD \ |
| >diff-output-1 && |
| git diff --name-status -M$th2 --diff-filter=R HEAD^ HEAD \ |
| >diff-output-2 && |
| git diff --name-status -M100% --diff-filter=R HEAD^ HEAD \ |
| >diff-output-3 && |
| test_line_count = 4 diff-output-0 && |
| test_line_count = 3 diff-output-1 && |
| test_line_count = 2 diff-output-2 && |
| test_line_count = 1 diff-output-3 |
| ' |
| |
| test_expect_success 'default similarity threshold is 50%' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive $tail && |
| $check_50 |
| ' |
| |
| test_expect_success 'low rename threshold' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --find-renames=$th0 $tail && |
| check_threshold_0 |
| ' |
| |
| test_expect_success 'medium rename threshold' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --find-renames=$th1 $tail && |
| check_threshold_1 |
| ' |
| |
| test_expect_success 'high rename threshold' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --find-renames=$th2 $tail && |
| check_threshold_2 |
| ' |
| |
| test_expect_success 'exact renames only' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --find-renames=100% $tail && |
| check_exact_renames |
| ' |
| |
| test_expect_success 'rename threshold is truncated' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --find-renames=200% $tail && |
| check_exact_renames |
| ' |
| |
| test_expect_success 'disabled rename detection' ' |
| git read-tree --reset -u HEAD && |
| git merge-recursive --no-renames $tail && |
| check_no_renames |
| ' |
| |
| test_expect_success 'last wins in --find-renames=<m> --find-renames=<n>' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive \ |
| --find-renames=$th0 --find-renames=$th2 $tail && |
| check_threshold_2 |
| ' |
| |
| test_expect_success '--find-renames resets threshold' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive \ |
| --find-renames=$th0 --find-renames $tail && |
| $check_50 |
| ' |
| |
| test_expect_success 'last wins in --no-renames --find-renames' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --no-renames --find-renames $tail && |
| $check_50 |
| ' |
| |
| test_expect_success 'last wins in --find-renames --no-renames' ' |
| git read-tree --reset -u HEAD && |
| git merge-recursive --find-renames --no-renames $tail && |
| check_no_renames |
| ' |
| |
| test_expect_success 'assumption for further tests: trivial merge succeeds' ' |
| git read-tree --reset -u HEAD && |
| git merge-recursive HEAD -- HEAD HEAD && |
| git diff --quiet --cached && |
| git merge-recursive --find-renames=$th0 HEAD -- HEAD HEAD && |
| git diff --quiet --cached && |
| git merge-recursive --find-renames=$th2 HEAD -- HEAD HEAD && |
| git diff --quiet --cached && |
| git merge-recursive --find-renames=100% HEAD -- HEAD HEAD && |
| git diff --quiet --cached && |
| git merge-recursive --no-renames HEAD -- HEAD HEAD && |
| git diff --quiet --cached |
| ' |
| |
| test_expect_success '--find-renames rejects negative argument' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --find-renames=-25 \ |
| HEAD -- HEAD HEAD && |
| git diff --quiet --cached |
| ' |
| |
| test_expect_success '--find-renames rejects non-numbers' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --find-renames=0xf \ |
| HEAD -- HEAD HEAD && |
| git diff --quiet --cached |
| ' |
| |
| test_expect_success 'rename-threshold=<n> is a synonym for find-renames=<n>' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --rename-threshold=$th0 $tail && |
| check_threshold_0 |
| ' |
| |
| test_expect_success 'last wins in --no-renames --rename-threshold=<n>' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --no-renames --rename-threshold=$th0 $tail && |
| check_threshold_0 |
| ' |
| |
| test_expect_success 'last wins in --rename-threshold=<n> --no-renames' ' |
| git read-tree --reset -u HEAD && |
| git merge-recursive --rename-threshold=$th0 --no-renames $tail && |
| check_no_renames |
| ' |
| |
| test_expect_success '--rename-threshold=<n> rejects negative argument' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --rename-threshold=-25 \ |
| HEAD -- HEAD HEAD && |
| git diff --quiet --cached |
| ' |
| |
| test_expect_success '--rename-threshold=<n> rejects non-numbers' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive --rename-threshold=0xf \ |
| HEAD -- HEAD HEAD && |
| git diff --quiet --cached |
| ' |
| |
| test_expect_success 'last wins in --rename-threshold=<m> --find-renames=<n>' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive \ |
| --rename-threshold=$th0 --find-renames=$th2 $tail && |
| check_threshold_2 |
| ' |
| |
| test_expect_success 'last wins in --find-renames=<m> --rename-threshold=<n>' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git merge-recursive \ |
| --find-renames=$th2 --rename-threshold=$th0 $tail && |
| check_threshold_0 |
| ' |
| |
| test_expect_success 'merge.renames disables rename detection' ' |
| git read-tree --reset -u HEAD && |
| git -c merge.renames=false merge-recursive $tail && |
| check_no_renames |
| ' |
| |
| test_expect_success 'merge.renames defaults to diff.renames' ' |
| git read-tree --reset -u HEAD && |
| git -c diff.renames=false merge-recursive $tail && |
| check_no_renames |
| ' |
| |
| test_expect_success 'merge.renames overrides diff.renames' ' |
| git read-tree --reset -u HEAD && |
| test_must_fail git -c diff.renames=false -c merge.renames=true merge-recursive $tail && |
| $check_50 |
| ' |
| |
| test_done |
