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67360b75c6
Commit 95433eeed9 ("diff: add ability to insert additional headers for
paths", 2022-02-02) introduced the possibility of additional headers.
Because there could be conflicts with no content differences (e.g. a
modify/delete conflict resolved in favor of taking the modified file
as-is), that commit also modified the diff_queue_is_empty() and
diff_flush_patch() logic to ensure these headers were included even if
there was no associated content diff.
However, the added logic was a bit inconsistent between these two
functions. diff_queue_is_empty() overlooked the fact that the
additional headers strmap could be non-NULL and empty, which would cause
it to display commits that should have been filtered out.
Fix the diff_queue_is_empty() logic to also account for
additional_path_headers being empty.
Reported-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
320 lines
8.9 KiB
Bash
Executable file
320 lines
8.9 KiB
Bash
Executable file
#!/bin/sh
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test_description='remerge-diff handling'
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. ./test-lib.sh
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# This test is ort-specific
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if test "${GIT_TEST_MERGE_ALGORITHM}" != ort
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then
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skip_all="GIT_TEST_MERGE_ALGORITHM != ort"
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test_done
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fi
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test_expect_success 'setup basic merges' '
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test_write_lines 1 2 3 4 5 6 7 8 9 >numbers &&
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git add numbers &&
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git commit -m base &&
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git branch feature_a &&
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git branch feature_b &&
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git branch feature_c &&
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git branch ab_resolution &&
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git branch bc_resolution &&
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git checkout feature_a &&
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test_write_lines 1 2 three 4 5 6 7 eight 9 >numbers &&
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git commit -a -m change_a &&
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git checkout feature_b &&
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test_write_lines 1 2 tres 4 5 6 7 8 9 >numbers &&
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git commit -a -m change_b &&
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git checkout feature_c &&
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test_write_lines 1 2 3 4 5 6 7 8 9 10 >numbers &&
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git commit -a -m change_c &&
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git checkout bc_resolution &&
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git merge --ff-only feature_b &&
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# no conflict
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git merge feature_c &&
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git checkout ab_resolution &&
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git merge --ff-only feature_a &&
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# conflicts!
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test_must_fail git merge feature_b &&
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# Resolve conflict...and make another change elsewhere
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test_write_lines 1 2 drei 4 5 6 7 acht 9 >numbers &&
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git add numbers &&
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git merge --continue
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'
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test_expect_success 'remerge-diff on a clean merge' '
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git log -1 --oneline bc_resolution >expect &&
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git show --oneline --remerge-diff bc_resolution >actual &&
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test_cmp expect actual
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'
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test_expect_success 'remerge-diff on a clean merge with a filter' '
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git show --oneline --remerge-diff --diff-filter=U bc_resolution >actual &&
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test_must_be_empty actual
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'
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test_expect_success 'remerge-diff with both a resolved conflict and an unrelated change' '
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git log -1 --oneline ab_resolution >tmp &&
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cat <<-EOF >>tmp &&
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diff --git a/numbers b/numbers
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remerge CONFLICT (content): Merge conflict in numbers
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index a1fb731..6875544 100644
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--- a/numbers
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+++ b/numbers
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@@ -1,13 +1,9 @@
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1
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2
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-<<<<<<< b0ed5cb (change_a)
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-three
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-=======
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-tres
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->>>>>>> 6cd3f82 (change_b)
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+drei
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4
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5
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6
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7
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-eight
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+acht
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9
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EOF
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# Hashes above are sha1; rip them out so test works with sha256
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >expect &&
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git show --oneline --remerge-diff ab_resolution >tmp &&
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >actual &&
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test_cmp expect actual
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'
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test_expect_success 'pickaxe still includes additional headers for relevant changes' '
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# reuses "expect" from the previous testcase
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git log --oneline --remerge-diff -Sacht ab_resolution >tmp &&
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >actual &&
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test_cmp expect actual
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'
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test_expect_success 'can filter out additional headers with pickaxe' '
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git show --remerge-diff --submodule=log --find-object=HEAD ab_resolution >actual &&
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test_must_be_empty actual &&
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git show --remerge-diff -S"not present" --all >actual &&
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test_must_be_empty actual
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'
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test_expect_success 'setup non-content conflicts' '
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git switch --orphan base &&
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test_write_lines 1 2 3 4 5 6 7 8 9 >numbers &&
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test_write_lines a b c d e f g h i >letters &&
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test_write_lines in the way >content &&
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git add numbers letters content &&
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git commit -m base &&
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git branch side1 &&
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git branch side2 &&
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git checkout side1 &&
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test_write_lines 1 2 three 4 5 6 7 8 9 >numbers &&
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git mv letters letters_side1 &&
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git mv content file_or_directory &&
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git add numbers &&
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git commit -m side1 &&
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git checkout side2 &&
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git rm numbers &&
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git mv letters letters_side2 &&
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mkdir file_or_directory &&
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echo hello >file_or_directory/world &&
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git add file_or_directory/world &&
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git commit -m side2 &&
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git checkout -b resolution side1 &&
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test_must_fail git merge side2 &&
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test_write_lines 1 2 three 4 5 6 7 8 9 >numbers &&
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git add numbers &&
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git add letters_side1 &&
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git rm letters &&
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git rm letters_side2 &&
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git add file_or_directory~HEAD &&
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git mv file_or_directory~HEAD wanted_content &&
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git commit -m resolved
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'
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test_expect_success 'remerge-diff with non-content conflicts' '
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git log -1 --oneline resolution >tmp &&
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cat <<-EOF >>tmp &&
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diff --git a/file_or_directory~HASH (side1) b/wanted_content
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similarity index 100%
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rename from file_or_directory~HASH (side1)
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rename to wanted_content
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remerge CONFLICT (file/directory): directory in the way of file_or_directory from HASH (side1); moving it to file_or_directory~HASH (side1) instead.
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diff --git a/letters b/letters
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remerge CONFLICT (rename/rename): letters renamed to letters_side1 in HASH (side1) and to letters_side2 in HASH (side2).
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diff --git a/letters_side2 b/letters_side2
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deleted file mode 100644
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index b236ae5..0000000
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--- a/letters_side2
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+++ /dev/null
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@@ -1,9 +0,0 @@
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-a
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-b
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-c
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-d
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-e
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-f
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-g
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-h
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-i
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diff --git a/numbers b/numbers
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remerge CONFLICT (modify/delete): numbers deleted in HASH (side2) and modified in HASH (side1). Version HASH (side1) of numbers left in tree.
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EOF
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# We still have some sha1 hashes above; rip them out so test works
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# with sha256
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >expect &&
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git show --oneline --remerge-diff resolution >tmp &&
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >actual &&
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test_cmp expect actual
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'
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test_expect_success 'remerge-diff w/ diff-filter=U: all conflict headers, no diff content' '
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git log -1 --oneline resolution >tmp &&
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cat <<-EOF >>tmp &&
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diff --git a/file_or_directory~HASH (side1) b/file_or_directory~HASH (side1)
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remerge CONFLICT (file/directory): directory in the way of file_or_directory from HASH (side1); moving it to file_or_directory~HASH (side1) instead.
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diff --git a/letters b/letters
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remerge CONFLICT (rename/rename): letters renamed to letters_side1 in HASH (side1) and to letters_side2 in HASH (side2).
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diff --git a/numbers b/numbers
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remerge CONFLICT (modify/delete): numbers deleted in HASH (side2) and modified in HASH (side1). Version HASH (side1) of numbers left in tree.
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EOF
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# We still have some sha1 hashes above; rip them out so test works
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# with sha256
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >expect &&
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git show --oneline --remerge-diff --diff-filter=U resolution >tmp &&
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >actual &&
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test_cmp expect actual
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'
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test_expect_success 'submodule formatting ignores additional headers' '
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# Reuses "expect" from last testcase
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git show --oneline --remerge-diff --diff-filter=U --submodule=log >tmp &&
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >actual &&
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test_cmp expect actual
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'
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test_expect_success 'remerge-diff w/ diff-filter=R: relevant file + conflict header' '
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git log -1 --oneline resolution >tmp &&
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cat <<-EOF >>tmp &&
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diff --git a/file_or_directory~HASH (side1) b/wanted_content
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similarity index 100%
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rename from file_or_directory~HASH (side1)
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rename to wanted_content
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remerge CONFLICT (file/directory): directory in the way of file_or_directory from HASH (side1); moving it to file_or_directory~HASH (side1) instead.
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EOF
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# We still have some sha1 hashes above; rip them out so test works
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# with sha256
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >expect &&
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git show --oneline --remerge-diff --diff-filter=R resolution >tmp &&
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >actual &&
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test_cmp expect actual
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'
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test_expect_success 'remerge-diff w/ pathspec: limits to relevant file including conflict header' '
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git log -1 --oneline resolution >tmp &&
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cat <<-EOF >>tmp &&
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diff --git a/letters b/letters
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remerge CONFLICT (rename/rename): letters renamed to letters_side1 in HASH (side1) and to letters_side2 in HASH (side2).
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diff --git a/letters_side2 b/letters_side2
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deleted file mode 100644
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index b236ae5..0000000
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--- a/letters_side2
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+++ /dev/null
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@@ -1,9 +0,0 @@
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-a
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-b
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-c
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-d
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-e
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-f
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-g
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-h
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-i
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EOF
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# We still have some sha1 hashes above; rip them out so test works
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# with sha256
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >expect &&
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git show --oneline --remerge-diff resolution -- "letters*" >tmp &&
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >actual &&
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test_cmp expect actual
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'
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test_expect_success 'setup non-content conflicts' '
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git switch --orphan newbase &&
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test_write_lines 1 2 3 4 5 6 7 8 9 >numbers &&
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git add numbers &&
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git commit -m base &&
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git branch newside1 &&
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git branch newside2 &&
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git checkout newside1 &&
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test_write_lines 1 2 three 4 5 6 7 8 9 >numbers &&
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git add numbers &&
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git commit -m side1 &&
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git checkout newside2 &&
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test_write_lines 1 2 drei 4 5 6 7 8 9 >numbers &&
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git add numbers &&
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git commit -m side2 &&
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git checkout -b newresolution newside1 &&
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test_must_fail git merge newside2 &&
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git checkout --theirs numbers &&
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git add -u numbers &&
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git commit -m resolved
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'
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test_expect_success 'remerge-diff turns off history simplification' '
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git log -1 --oneline newresolution >tmp &&
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cat <<-EOF >>tmp &&
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diff --git a/numbers b/numbers
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remerge CONFLICT (content): Merge conflict in numbers
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index 070e9e7..5335e78 100644
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--- a/numbers
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+++ b/numbers
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@@ -1,10 +1,6 @@
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1
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2
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-<<<<<<< 96f1e45 (side1)
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-three
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-=======
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drei
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->>>>>>> 4fd522f (side2)
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4
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5
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6
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EOF
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# We still have some sha1 hashes above; rip them out so test works
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# with sha256
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >expect &&
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git show --oneline --remerge-diff newresolution -- numbers >tmp &&
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sed -e "s/[0-9a-f]\{7,\}/HASH/g" tmp >actual &&
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test_cmp expect actual
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'
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test_done
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