#!/bin/sh
#
# Copyright (c) 2007 Johannes E. Schindelin
#

test_description='Test commit notes'

. ./test-lib.sh

write_script fake_editor <<\EOF
echo "$MSG" >"$1"
echo "$MSG" >&2
EOF
GIT_EDITOR=./fake_editor
export GIT_EDITOR

indent="    "

test_expect_success 'cannot annotate non-existing HEAD' '
        test_must_fail env MSG=3 git notes add
'

test_expect_success 'setup' '
        test_commit 1st &&
        test_commit 2nd
'

test_expect_success 'need valid notes ref' '
        test_must_fail env MSG=1 GIT_NOTES_REF=/ git notes show &&
        test_must_fail env MSG=2 GIT_NOTES_REF=/ git notes show
'

test_expect_success 'refusing to add notes in refs/heads/' '
        test_must_fail env MSG=1 GIT_NOTES_REF=refs/heads/bogus git notes add
'

test_expect_success 'refusing to edit notes in refs/remotes/' '
        test_must_fail env MSG=1 GIT_NOTES_REF=refs/heads/bogus git notes edit
'

# 1 indicates caught gracefully by die, 128 means git-show barked
test_expect_success 'handle empty notes gracefully' '
        test_expect_code 1 git notes show
'

test_expect_success 'show non-existent notes entry with %N' '
        test_write_lines A B >expect &&
        git show -s --format="A%n%NB" >actual &&
        test_cmp expect actual
'

test_expect_success 'create notes' '
        MSG=b4 git notes add &&
        test_path_is_missing .git/NOTES_EDITMSG &&
        git ls-tree -r refs/notes/commits >actual &&
        test_line_count = 1 actual &&
        test "b4" = "$(git notes show)" &&
        git show HEAD^ &&
        test_must_fail git notes show HEAD^
'

test_expect_success 'show notes entry with %N' '
        test_write_lines A b4 B >expect &&
        git show -s --format="A%n%NB" >actual &&
        test_cmp expect actual
'

test_expect_success 'create reflog entry' '
        cat <<-EOF >expect &&
                a1d8fa6 refs/notes/commits@{0}: notes: Notes added by '\''git notes add'\''
        EOF
        git reflog show refs/notes/commits >actual &&
        test_cmp expect actual
'

test_expect_success 'edit existing notes' '
        MSG=b3 git notes edit &&
        test_path_is_missing .git/NOTES_EDITMSG &&
        git ls-tree -r refs/notes/commits >actual &&
        test_line_count = 1 actual &&
        test "b3" = "$(git notes show)" &&
        git show HEAD^ &&
        test_must_fail git notes show HEAD^
'

test_expect_success 'cannot "git notes add -m" where notes already exists' '
        test_must_fail git notes add -m "b2" &&
        test_path_is_missing .git/NOTES_EDITMSG &&
        git ls-tree -r refs/notes/commits >actual &&
        test_line_count = 1 actual &&
        test "b3" = "$(git notes show)" &&
        git show HEAD^ &&
        test_must_fail git notes show HEAD^
'

test_expect_success 'can overwrite existing note with "git notes add -f -m"' '
        git notes add -f -m "b1" &&
        test_path_is_missing .git/NOTES_EDITMSG &&
        git ls-tree -r refs/notes/commits >actual &&
        test_line_count = 1 actual &&
        test "b1" = "$(git notes show)" &&
        git show HEAD^ &&
        test_must_fail git notes show HEAD^
'

test_expect_success 'add w/no options on existing note morphs into edit' '
        MSG=b2 git notes add &&
        test_path_is_missing .git/NOTES_EDITMSG &&
        git ls-tree -r refs/notes/commits >actual &&
        test_line_count = 1 actual &&
        test "b2" = "$(git notes show)" &&
        git show HEAD^ &&
        test_must_fail git notes show HEAD^
'

test_expect_success 'can overwrite existing note with "git notes add -f"' '
        MSG=b1 git notes add -f &&
        test_path_is_missing .git/NOTES_EDITMSG &&
        git ls-tree -r refs/notes/commits >actual &&
        test_line_count = 1 actual &&
        test "b1" = "$(git notes show)" &&
        git show HEAD^ &&
        test_must_fail git notes show HEAD^
'

test_expect_success 'show notes' '
        cat >expect <<-EOF &&
                commit 7a4ca6ee52a974a66cbaa78e33214535dff1d691
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:14:13 2005 -0700

                ${indent}2nd

                Notes:
                ${indent}b1
        EOF
        ! (git cat-file commit HEAD | grep b1) &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'show multi-line notes' '
        test_commit 3rd &&
        MSG="b3${LF}c3c3c3c3${LF}d3d3d3" git notes add &&
        cat >expect-multiline <<-EOF &&
                commit d07d62e5208f22eb5695e7eb47667dc8b9860290
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:15:13 2005 -0700

                ${indent}3rd

                Notes:
                ${indent}b3
                ${indent}c3c3c3c3
                ${indent}d3d3d3

        EOF
        cat expect >>expect-multiline &&
        git log -2 >actual &&
        test_cmp expect-multiline actual
'

test_expect_success 'show -F notes' '
        test_commit 4th &&
        echo "xyzzy" >note5 &&
        git notes add -F note5 &&
        cat >expect-F <<-EOF &&
                commit 0f7aa3ec6325aeb88b910453bb3eb37c49d75c11
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:16:13 2005 -0700

                ${indent}4th

                Notes:
                ${indent}xyzzy

        EOF
        cat expect-multiline >>expect-F &&
        git log -3 >actual &&
        test_cmp expect-F actual
'

test_expect_success 'Re-adding -F notes without -f fails' '
        echo "zyxxy" >note5 &&
        test_must_fail git notes add -F note5 &&
        git log -3 >actual &&
        test_cmp expect-F actual
'

test_expect_success 'git log --pretty=raw does not show notes' '
        cat >expect <<-EOF &&
                commit 0f7aa3ec6325aeb88b910453bb3eb37c49d75c11
                tree 05ac65288c4c4b3b709a020ae94b2ece2f2201ae
                parent d07d62e5208f22eb5695e7eb47667dc8b9860290
                author A U Thor <author@example.com> 1112912173 -0700
                committer C O Mitter <committer@example.com> 1112912173 -0700

                ${indent}4th
        EOF
        git log -1 --pretty=raw >actual &&
        test_cmp expect actual
'

test_expect_success 'git log --show-notes' '
        cat >>expect <<-EOF &&

        Notes:
        ${indent}xyzzy
        EOF
        git log -1 --pretty=raw --show-notes >actual &&
        test_cmp expect actual
'

test_expect_success 'git log --no-notes' '
        git log -1 --no-notes >actual &&
        ! grep xyzzy actual
'

test_expect_success 'git format-patch does not show notes' '
        git format-patch -1 --stdout >actual &&
        ! grep xyzzy actual
'

test_expect_success 'git format-patch --show-notes does show notes' '
        git format-patch --show-notes -1 --stdout >actual &&
        grep xyzzy actual
'

for pretty in \
        "" --pretty --pretty=raw --pretty=short --pretty=medium \
        --pretty=full --pretty=fuller --pretty=format:%s --oneline
do
        case "$pretty" in
        "") p= not= negate="" ;;
        ?*) p="$pretty" not=" not" negate="!" ;;
        esac
        test_expect_success "git show $pretty does$not show notes" '
                git show $p >actual &&
                eval "$negate grep xyzzy actual"
        '
done

test_expect_success 'setup alternate notes ref' '
        git notes --ref=alternate add -m alternate
'

test_expect_success 'git log --notes shows default notes' '
        git log -1 --notes >actual &&
        grep xyzzy actual &&
        ! grep alternate actual
'

test_expect_success 'git log --notes=X shows only X' '
        git log -1 --notes=alternate >actual &&
        ! grep xyzzy actual &&
        grep alternate actual
'

test_expect_success 'git log --notes --notes=X shows both' '
        git log -1 --notes --notes=alternate >actual &&
        grep xyzzy actual &&
        grep alternate actual
'

test_expect_success 'git log --no-notes resets default state' '
        git log -1 --notes --notes=alternate \
                --no-notes --notes=alternate \
                >actual &&
        ! grep xyzzy actual &&
        grep alternate actual
'

test_expect_success 'git log --no-notes resets ref list' '
        git log -1 --notes --notes=alternate \
                --no-notes --notes \
                >actual &&
        grep xyzzy actual &&
        ! grep alternate actual
'

test_expect_success 'show -m notes' '
        test_commit 5th &&
        git notes add -m spam -m "foo${LF}bar${LF}baz" &&
        cat >expect-m <<-EOF &&
                commit 7f9ad8836c775acb134c0a055fc55fb4cd1ba361
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:17:13 2005 -0700

                ${indent}5th

                Notes:
                ${indent}spam
                ${indent}
                ${indent}foo
                ${indent}bar
                ${indent}baz

        EOF
        cat expect-F >>expect-m &&
        git log -4 >actual &&
        test_cmp expect-m actual
'

test_expect_success 'remove note with add -f -F /dev/null' '
        git notes add -f -F /dev/null &&
        cat >expect-rm-F <<-EOF &&
                commit 7f9ad8836c775acb134c0a055fc55fb4cd1ba361
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:17:13 2005 -0700

                ${indent}5th

        EOF
        cat expect-F >>expect-rm-F &&
        git log -4 >actual &&
        test_cmp expect-rm-F actual &&
        test_must_fail git notes show
'

test_expect_success 'do not create empty note with -m ""' '
        git notes add -m "" &&
        git log -4 >actual &&
        test_cmp expect-rm-F actual &&
        test_must_fail git notes show
'

test_expect_success 'create note with combination of -m and -F' '
        cat >expect-combine_m_and_F <<-EOF &&
                foo

                xyzzy

                bar

                zyxxy

                baz
        EOF
        echo "xyzzy" >note_a &&
        echo "zyxxy" >note_b &&
        git notes add -m "foo" -F note_a -m "bar" -F note_b -m "baz" &&
        git notes show >actual &&
        test_cmp expect-combine_m_and_F actual
'

test_expect_success 'remove note with "git notes remove"' '
        git notes remove HEAD^ &&
        git notes remove &&
        cat >expect-rm-remove <<-EOF &&
                commit 7f9ad8836c775acb134c0a055fc55fb4cd1ba361
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:17:13 2005 -0700

                ${indent}5th

                commit 0f7aa3ec6325aeb88b910453bb3eb37c49d75c11
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:16:13 2005 -0700

                ${indent}4th

        EOF
        cat expect-multiline >>expect-rm-remove &&
        git log -4 >actual &&
        test_cmp expect-rm-remove actual &&
        test_must_fail git notes show HEAD^
'

test_expect_success 'removing non-existing note should not create new commit' '
        git rev-parse --verify refs/notes/commits >before_commit &&
        test_must_fail git notes remove HEAD^ &&
        git rev-parse --verify refs/notes/commits >after_commit &&
        test_cmp before_commit after_commit
'

test_expect_success 'removing more than one' '
        before=$(git rev-parse --verify refs/notes/commits) &&
        test_when_finished "git update-ref refs/notes/commits $before" &&

        # We have only two -- add another and make sure it stays
        git notes add -m "extra" &&
        git notes list HEAD >after-removal-expect &&
        git notes remove HEAD^^ HEAD^^^ &&
        git notes list | sed -e "s/ .*//" >actual &&
        test_cmp after-removal-expect actual
'

test_expect_success 'removing is atomic' '
        before=$(git rev-parse --verify refs/notes/commits) &&
        test_when_finished "git update-ref refs/notes/commits $before" &&
        test_must_fail git notes remove HEAD^^ HEAD^^^ HEAD^ &&
        after=$(git rev-parse --verify refs/notes/commits) &&
        test "$before" = "$after"
'

test_expect_success 'removing with --ignore-missing' '
        before=$(git rev-parse --verify refs/notes/commits) &&
        test_when_finished "git update-ref refs/notes/commits $before" &&

        # We have only two -- add another and make sure it stays
        git notes add -m "extra" &&
        git notes list HEAD >after-removal-expect &&
        git notes remove --ignore-missing HEAD^^ HEAD^^^ HEAD^ &&
        git notes list | sed -e "s/ .*//" >actual &&
        test_cmp after-removal-expect actual
'

test_expect_success 'removing with --ignore-missing but bogus ref' '
        before=$(git rev-parse --verify refs/notes/commits) &&
        test_when_finished "git update-ref refs/notes/commits $before" &&
        test_must_fail git notes remove --ignore-missing HEAD^^ HEAD^^^ NO-SUCH-COMMIT &&
        after=$(git rev-parse --verify refs/notes/commits) &&
        test "$before" = "$after"
'

test_expect_success 'remove reads from --stdin' '
        before=$(git rev-parse --verify refs/notes/commits) &&
        test_when_finished "git update-ref refs/notes/commits $before" &&

        # We have only two -- add another and make sure it stays
        git notes add -m "extra" &&
        git notes list HEAD >after-removal-expect &&
        git rev-parse HEAD^^ HEAD^^^ >input &&
        git notes remove --stdin <input &&
        git notes list | sed -e "s/ .*//" >actual &&
        test_cmp after-removal-expect actual
'

test_expect_success 'remove --stdin is also atomic' '
        before=$(git rev-parse --verify refs/notes/commits) &&
        test_when_finished "git update-ref refs/notes/commits $before" &&
        git rev-parse HEAD^^ HEAD^^^ HEAD^ >input &&
        test_must_fail git notes remove --stdin <input &&
        after=$(git rev-parse --verify refs/notes/commits) &&
        test "$before" = "$after"
'

test_expect_success 'removing with --stdin --ignore-missing' '
        before=$(git rev-parse --verify refs/notes/commits) &&
        test_when_finished "git update-ref refs/notes/commits $before" &&

        # We have only two -- add another and make sure it stays
        git notes add -m "extra" &&
        git notes list HEAD >after-removal-expect &&
        git rev-parse HEAD^^ HEAD^^^ HEAD^ >input &&
        git notes remove --ignore-missing --stdin <input &&
        git notes list | sed -e "s/ .*//" >actual &&
        test_cmp after-removal-expect actual
'

test_expect_success 'list notes with "git notes list"' '
        cat >expect <<-EOF &&
                c9c6af7f78bc47490dbf3e822cf2f3c24d4b9061 7a4ca6ee52a974a66cbaa78e33214535dff1d691
                c18dc024e14f08d18d14eea0d747ff692d66d6a3 d07d62e5208f22eb5695e7eb47667dc8b9860290
        EOF
        git notes list >actual &&
        test_cmp expect actual
'

test_expect_success 'list notes with "git notes"' '
        git notes >actual &&
        test_cmp expect actual
'

test_expect_success 'list specific note with "git notes list <object>"' '
        cat >expect <<-EOF &&
                c18dc024e14f08d18d14eea0d747ff692d66d6a3
        EOF
        git notes list HEAD^^ >actual &&
        test_cmp expect actual
'

test_expect_success 'listing non-existing notes fails' '
        cat >expect <<-EOF &&
        EOF
        test_must_fail git notes list HEAD >actual &&
        test_cmp expect actual
'

test_expect_success 'append to existing note with "git notes append"' '
        cat >expect <<-EOF &&
                Initial set of notes

                More notes appended with git notes append
        EOF
        git notes add -m "Initial set of notes" &&
        git notes append -m "More notes appended with git notes append" &&
        git notes show >actual &&
        test_cmp expect actual
'

test_expect_success '"git notes list" does not expand to "git notes list HEAD"' '
        cat >expect_list <<-EOF &&
                c9c6af7f78bc47490dbf3e822cf2f3c24d4b9061 7a4ca6ee52a974a66cbaa78e33214535dff1d691
                4b6ad22357cc8a1296720574b8d2fbc22fab0671 7f9ad8836c775acb134c0a055fc55fb4cd1ba361
                c18dc024e14f08d18d14eea0d747ff692d66d6a3 d07d62e5208f22eb5695e7eb47667dc8b9860290
        EOF
        git notes list >actual &&
        test_cmp expect_list actual
'

test_expect_success 'appending empty string does not change existing note' '
        git notes append -m "" &&
        git notes show >actual &&
        test_cmp expect actual
'

test_expect_success 'git notes append == add when there is no existing note' '
        git notes remove HEAD &&
        test_must_fail git notes list HEAD &&
        git notes append -m "Initial set of notes${LF}${LF}More notes appended with git notes append" &&
        git notes show >actual &&
        test_cmp expect actual
'

test_expect_success 'appending empty string to non-existing note does not create note' '
        git notes remove HEAD &&
        test_must_fail git notes list HEAD &&
        git notes append -m "" &&
        test_must_fail git notes list HEAD
'

test_expect_success 'create other note on a different notes ref (setup)' '
        test_commit 6th &&
        GIT_NOTES_REF="refs/notes/other" git notes add -m "other note" &&
        cat >expect-not-other <<-EOF &&
                commit 2c125331118caba0ff8238b7f4958ac6e93fe39c
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:18:13 2005 -0700

                ${indent}6th
        EOF
        cp expect-not-other expect-other &&
        cat >>expect-other <<-EOF

                Notes (other):
                ${indent}other note
        EOF
'

test_expect_success 'Do not show note on other ref by default' '
        git log -1 >actual &&
        test_cmp expect-not-other actual
'

test_expect_success 'Do show note when ref is given in GIT_NOTES_REF' '
        GIT_NOTES_REF="refs/notes/other" git log -1 >actual &&
        test_cmp expect-other actual
'

test_expect_success 'Do show note when ref is given in core.notesRef config' '
        test_config core.notesRef "refs/notes/other" &&
        git log -1 >actual &&
        test_cmp expect-other actual
'

test_expect_success 'Do not show note when core.notesRef is overridden' '
        test_config core.notesRef "refs/notes/other" &&
        GIT_NOTES_REF="refs/notes/wrong" git log -1 >actual &&
        test_cmp expect-not-other actual
'

test_expect_success 'Show all notes when notes.displayRef=refs/notes/*' '
        cat >expect-both <<-EOF &&
                commit 2c125331118caba0ff8238b7f4958ac6e93fe39c
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:18:13 2005 -0700

                ${indent}6th

                Notes:
                ${indent}order test

                Notes (other):
                ${indent}other note

                commit 7f9ad8836c775acb134c0a055fc55fb4cd1ba361
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:17:13 2005 -0700

                ${indent}5th

                Notes:
                ${indent}replacement for deleted note
        EOF
        GIT_NOTES_REF=refs/notes/commits git notes add \
                -m"replacement for deleted note" HEAD^ &&
        GIT_NOTES_REF=refs/notes/commits git notes add -m"order test" &&
        test_unconfig core.notesRef &&
        test_config notes.displayRef "refs/notes/*" &&
        git log -2 >actual &&
        test_cmp expect-both actual
'

test_expect_success 'core.notesRef is implicitly in notes.displayRef' '
        test_config core.notesRef refs/notes/commits &&
        test_config notes.displayRef refs/notes/other &&
        git log -2 >actual &&
        test_cmp expect-both actual
'

test_expect_success 'notes.displayRef can be given more than once' '
        test_unconfig core.notesRef &&
        test_config notes.displayRef refs/notes/commits &&
        git config --add notes.displayRef refs/notes/other &&
        git log -2 >actual &&
        test_cmp expect-both actual
'

test_expect_success 'notes.displayRef respects order' '
        cat >expect-both-reversed <<-EOF &&
                commit 2c125331118caba0ff8238b7f4958ac6e93fe39c
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:18:13 2005 -0700

                ${indent}6th

                Notes (other):
                ${indent}other note

                Notes:
                ${indent}order test
        EOF
        test_config core.notesRef refs/notes/other &&
        test_config notes.displayRef refs/notes/commits &&
        git log -1 >actual &&
        test_cmp expect-both-reversed actual
'

test_expect_success 'GIT_NOTES_DISPLAY_REF works' '
        GIT_NOTES_DISPLAY_REF=refs/notes/commits:refs/notes/other \
                git log -2 >actual &&
        test_cmp expect-both actual
'

test_expect_success 'GIT_NOTES_DISPLAY_REF overrides config' '
        cat >expect-none <<-EOF &&
                commit 2c125331118caba0ff8238b7f4958ac6e93fe39c
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:18:13 2005 -0700

                ${indent}6th

                commit 7f9ad8836c775acb134c0a055fc55fb4cd1ba361
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:17:13 2005 -0700

                ${indent}5th
        EOF
        test_config notes.displayRef "refs/notes/*" &&
        GIT_NOTES_REF= GIT_NOTES_DISPLAY_REF= git log -2 >actual &&
        test_cmp expect-none actual
'

test_expect_success '--show-notes=* adds to GIT_NOTES_DISPLAY_REF' '
        GIT_NOTES_REF= GIT_NOTES_DISPLAY_REF= git log --show-notes=* -2 >actual &&
        test_cmp expect-both actual
'

test_expect_success '--no-standard-notes' '
        cat >expect-commits <<-EOF &&
                commit 2c125331118caba0ff8238b7f4958ac6e93fe39c
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:18:13 2005 -0700

                ${indent}6th

                Notes:
                ${indent}order test
        EOF
        git log --no-standard-notes --show-notes=commits -1 >actual &&
        test_cmp expect-commits actual
'

test_expect_success '--standard-notes' '
        test_config notes.displayRef "refs/notes/*" &&
        git log --no-standard-notes --show-notes=commits \
                --standard-notes -2 >actual &&
        test_cmp expect-both actual
'

test_expect_success '--show-notes=ref accumulates' '
        git log --show-notes=other --show-notes=commits \
                 --no-standard-notes -1 >actual &&
        test_cmp expect-both-reversed actual
'

test_expect_success 'Allow notes on non-commits (trees, blobs, tags)' '
        test_config core.notesRef refs/notes/other &&
        echo "Note on a tree" >expect &&
        git notes add -m "Note on a tree" HEAD: &&
        git notes show HEAD: >actual &&
        test_cmp expect actual &&
        echo "Note on a blob" >expect &&
        filename=$(git ls-tree --name-only HEAD | head -n1) &&
        git notes add -m "Note on a blob" HEAD:$filename &&
        git notes show HEAD:$filename >actual &&
        test_cmp expect actual &&
        echo "Note on a tag" >expect &&
        git tag -a -m "This is an annotated tag" foobar HEAD^ &&
        git notes add -m "Note on a tag" foobar &&
        git notes show foobar >actual &&
        test_cmp expect actual
'

test_expect_success 'create note from other note with "git notes add -C"' '
        cat >expect <<-EOF &&
                commit fb01e0ca8c33b6cc0c6451dde747f97df567cb5c
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:19:13 2005 -0700

                ${indent}7th

                Notes:
                ${indent}order test
        EOF
        test_commit 7th &&
        git notes add -C $(git notes list HEAD^) &&
        git log -1 >actual &&
        test_cmp expect actual &&
        test "$(git notes list HEAD)" = "$(git notes list HEAD^)"
'

test_expect_success 'create note from non-existing note with "git notes add -C" fails' '
        test_commit 8th &&
        test_must_fail git notes add -C deadbeef &&
        test_must_fail git notes list HEAD
'

test_expect_success 'create note from non-blob with "git notes add -C" fails' '
        commit=$(git rev-parse --verify HEAD) &&
        tree=$(git rev-parse --verify HEAD:) &&
        test_must_fail git notes add -C $commit &&
        test_must_fail git notes add -C $tree &&
        test_must_fail git notes list HEAD
'

test_expect_success 'create note from blob with "git notes add -C" reuses blob id' '
        cat >expect <<-EOF &&
                commit 9a4c31c7f722b5d517e92c64e932dd751e1413bf
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:20:13 2005 -0700

                ${indent}8th

                Notes:
                ${indent}This is a blob object
        EOF
        blob=$(echo "This is a blob object" | git hash-object -w --stdin) &&
        git notes add -C $blob &&
        git log -1 >actual &&
        test_cmp expect actual &&
        test "$(git notes list HEAD)" = "$blob"
'

test_expect_success 'create note from other note with "git notes add -c"' '
        cat >expect <<-EOF &&
                commit 2e0db4bc649e174d667a1cde19e725cf897a5bd2
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:21:13 2005 -0700

                ${indent}9th

                Notes:
                ${indent}yet another note
        EOF
        test_commit 9th &&
        MSG="yet another note" git notes add -c $(git notes list HEAD^^) &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'create note from non-existing note with "git notes add -c" fails' '
        test_commit 10th &&
        test_must_fail env MSG="yet another note" git notes add -c deadbeef &&
        test_must_fail git notes list HEAD
'

test_expect_success 'append to note from other note with "git notes append -C"' '
        cat >expect <<-EOF &&
                commit 2e0db4bc649e174d667a1cde19e725cf897a5bd2
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:21:13 2005 -0700

                ${indent}9th

                Notes:
                ${indent}yet another note
                ${indent}
                ${indent}yet another note
        EOF
        git notes append -C $(git notes list HEAD^) HEAD^ &&
        git log -1 HEAD^ >actual &&
        test_cmp expect actual
'

test_expect_success 'create note from other note with "git notes append -c"' '
        cat >expect <<-EOF &&
                commit 7c3b87ab368f81e11b1ea87b2ab99a71ccd25406
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:22:13 2005 -0700

                ${indent}10th

                Notes:
                ${indent}other note
        EOF
        MSG="other note" git notes append -c $(git notes list HEAD^) &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'append to note from other note with "git notes append -c"' '
        cat >expect <<-EOF &&
                commit 7c3b87ab368f81e11b1ea87b2ab99a71ccd25406
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:22:13 2005 -0700

                ${indent}10th

                Notes:
                ${indent}other note
                ${indent}
                ${indent}yet another note
        EOF
        MSG="yet another note" git notes append -c $(git notes list HEAD) &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'copy note with "git notes copy"' '
        cat >expect <<-EOF &&
                commit a446fff8777efdc6eb8f4b7c8a5ff699484df0d5
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:23:13 2005 -0700

                ${indent}11th

                Notes:
                ${indent}other note
                ${indent}
                ${indent}yet another note
        EOF
        test_commit 11th &&
        git notes copy HEAD^ HEAD &&
        git log -1 >actual &&
        test_cmp expect actual &&
        test "$(git notes list HEAD)" = "$(git notes list HEAD^)"
'

test_expect_success 'prevent overwrite with "git notes copy"' '
        test_must_fail git notes copy HEAD~2 HEAD &&
        git log -1 >actual &&
        test_cmp expect actual &&
        test "$(git notes list HEAD)" = "$(git notes list HEAD^)"
'

test_expect_success 'allow overwrite with "git notes copy -f"' '
        cat >expect <<-EOF &&
                commit a446fff8777efdc6eb8f4b7c8a5ff699484df0d5
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:23:13 2005 -0700

                ${indent}11th

                Notes:
                ${indent}yet another note
                ${indent}
                ${indent}yet another note
        EOF
        git notes copy -f HEAD~2 HEAD &&
        git log -1 >actual &&
        test_cmp expect actual &&
        test "$(git notes list HEAD)" = "$(git notes list HEAD~2)"
'

test_expect_success 'cannot copy note from object without notes' '
        test_commit 12th &&
        test_commit 13th &&
        test_must_fail git notes copy HEAD^ HEAD
'

test_expect_success 'git notes copy --stdin' '
        cat >expect <<-EOF &&
                commit e871aa61182b1d95d0a6fb75445d891722863b6b
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:25:13 2005 -0700

                ${indent}13th

                Notes:
                ${indent}yet another note
                ${indent}
                ${indent}yet another note

                commit 65e263ded02ae4e8839bc151095113737579dc12
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:24:13 2005 -0700

                ${indent}12th

                Notes:
                ${indent}other note
                ${indent}
                ${indent}yet another note
        EOF
        (echo $(git rev-parse HEAD~3) $(git rev-parse HEAD^); \
        echo $(git rev-parse HEAD~2) $(git rev-parse HEAD)) |
        git notes copy --stdin &&
        git log -2 >actual &&
        test_cmp expect actual &&
        test "$(git notes list HEAD)" = "$(git notes list HEAD~2)" &&
        test "$(git notes list HEAD^)" = "$(git notes list HEAD~3)"
'

test_expect_success 'git notes copy --for-rewrite (unconfigured)' '
        cat >expect <<-EOF &&
                commit 4acf42e847e7fffbbf89ee365c20ac7caf40de89
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:27:13 2005 -0700

                ${indent}15th

                commit 07c85d77059393ed0154b8c96906547a59dfcddd
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:26:13 2005 -0700

                ${indent}14th
        EOF
        test_commit 14th &&
        test_commit 15th &&
        (echo $(git rev-parse HEAD~3) $(git rev-parse HEAD^); \
        echo $(git rev-parse HEAD~2) $(git rev-parse HEAD)) |
        git notes copy --for-rewrite=foo &&
        git log -2 >actual &&
        test_cmp expect actual
'

test_expect_success 'git notes copy --for-rewrite (enabled)' '
        cat >expect <<-EOF &&
                commit 4acf42e847e7fffbbf89ee365c20ac7caf40de89
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:27:13 2005 -0700

                ${indent}15th

                Notes:
                ${indent}yet another note
                ${indent}
                ${indent}yet another note

                commit 07c85d77059393ed0154b8c96906547a59dfcddd
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:26:13 2005 -0700

                ${indent}14th

                Notes:
                ${indent}other note
                ${indent}
                ${indent}yet another note
        EOF
        test_config notes.rewriteMode overwrite &&
        test_config notes.rewriteRef "refs/notes/*" &&
        (echo $(git rev-parse HEAD~3) $(git rev-parse HEAD^); \
        echo $(git rev-parse HEAD~2) $(git rev-parse HEAD)) |
        git notes copy --for-rewrite=foo &&
        git log -2 >actual &&
        test_cmp expect actual
'

test_expect_success 'git notes copy --for-rewrite (disabled)' '
        test_config notes.rewrite.bar false &&
        echo $(git rev-parse HEAD~3) $(git rev-parse HEAD) |
        git notes copy --for-rewrite=bar &&
        git log -2 >actual &&
        test_cmp expect actual
'

test_expect_success 'git notes copy --for-rewrite (overwrite)' '
        cat >expect <<-EOF &&
                commit 4acf42e847e7fffbbf89ee365c20ac7caf40de89
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:27:13 2005 -0700

                ${indent}15th

                Notes:
                ${indent}a fresh note
        EOF
        git notes add -f -m"a fresh note" HEAD^ &&
        test_config notes.rewriteMode overwrite &&
        test_config notes.rewriteRef "refs/notes/*" &&
        echo $(git rev-parse HEAD^) $(git rev-parse HEAD) |
        git notes copy --for-rewrite=foo &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'git notes copy --for-rewrite (ignore)' '
        test_config notes.rewriteMode ignore &&
        test_config notes.rewriteRef "refs/notes/*" &&
        echo $(git rev-parse HEAD^) $(git rev-parse HEAD) |
        git notes copy --for-rewrite=foo &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'git notes copy --for-rewrite (append)' '
        cat >expect <<-EOF &&
                commit 4acf42e847e7fffbbf89ee365c20ac7caf40de89
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:27:13 2005 -0700

                ${indent}15th

                Notes:
                ${indent}a fresh note
                ${indent}
                ${indent}another fresh note
        EOF
        git notes add -f -m"another fresh note" HEAD^ &&
        test_config notes.rewriteMode concatenate &&
        test_config notes.rewriteRef "refs/notes/*" &&
        echo $(git rev-parse HEAD^) $(git rev-parse HEAD) |
        git notes copy --for-rewrite=foo &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'git notes copy --for-rewrite (append two to one)' '
        cat >expect <<-EOF &&
                commit 4acf42e847e7fffbbf89ee365c20ac7caf40de89
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:27:13 2005 -0700

                ${indent}15th

                Notes:
                ${indent}a fresh note
                ${indent}
                ${indent}another fresh note
                ${indent}
                ${indent}append 1
                ${indent}
                ${indent}append 2
        EOF
        git notes add -f -m"append 1" HEAD^ &&
        git notes add -f -m"append 2" HEAD^^ &&
        test_config notes.rewriteMode concatenate &&
        test_config notes.rewriteRef "refs/notes/*" &&
        (echo $(git rev-parse HEAD^) $(git rev-parse HEAD);
        echo $(git rev-parse HEAD^^) $(git rev-parse HEAD)) |
        git notes copy --for-rewrite=foo &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'git notes copy --for-rewrite (append empty)' '
        git notes remove HEAD^ &&
        test_config notes.rewriteMode concatenate &&
        test_config notes.rewriteRef "refs/notes/*" &&
        echo $(git rev-parse HEAD^) $(git rev-parse HEAD) |
        git notes copy --for-rewrite=foo &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'GIT_NOTES_REWRITE_MODE works' '
        cat >expect <<-EOF &&
                commit 4acf42e847e7fffbbf89ee365c20ac7caf40de89
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:27:13 2005 -0700

                ${indent}15th

                Notes:
                ${indent}replacement note 1
        EOF
        test_config notes.rewriteMode concatenate &&
        test_config notes.rewriteRef "refs/notes/*" &&
        git notes add -f -m"replacement note 1" HEAD^ &&
        echo $(git rev-parse HEAD^) $(git rev-parse HEAD) |
        GIT_NOTES_REWRITE_MODE=overwrite git notes copy --for-rewrite=foo &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'GIT_NOTES_REWRITE_REF works' '
        cat >expect <<-EOF &&
                commit 4acf42e847e7fffbbf89ee365c20ac7caf40de89
                Author: A U Thor <author@example.com>
                Date:   Thu Apr 7 15:27:13 2005 -0700

                ${indent}15th

                Notes:
                ${indent}replacement note 2
        EOF
        git notes add -f -m"replacement note 2" HEAD^ &&
        test_config notes.rewriteMode overwrite &&
        test_unconfig notes.rewriteRef &&
        echo $(git rev-parse HEAD^) $(git rev-parse HEAD) |
        GIT_NOTES_REWRITE_REF=refs/notes/commits:refs/notes/other \
                git notes copy --for-rewrite=foo &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'GIT_NOTES_REWRITE_REF overrides config' '
        git notes add -f -m"replacement note 3" HEAD^ &&
        test_config notes.rewriteMode overwrite &&
        test_config notes.rewriteRef refs/notes/other &&
        echo $(git rev-parse HEAD^) $(git rev-parse HEAD) |
        GIT_NOTES_REWRITE_REF= git notes copy --for-rewrite=foo &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'git notes copy diagnoses too many or too few parameters' '
        test_must_fail git notes copy &&
        test_must_fail git notes copy one two three
'

test_expect_success 'git notes get-ref (no overrides)' '
        test_unconfig core.notesRef &&
        sane_unset GIT_NOTES_REF &&
        test "$(git notes get-ref)" = "refs/notes/commits"
'

test_expect_success 'git notes get-ref (core.notesRef)' '
        test_config core.notesRef refs/notes/foo &&
        test "$(git notes get-ref)" = "refs/notes/foo"
'

test_expect_success 'git notes get-ref (GIT_NOTES_REF)' '
        test "$(GIT_NOTES_REF=refs/notes/bar git notes get-ref)" = "refs/notes/bar"
'

test_expect_success 'git notes get-ref (--ref)' '
        test "$(GIT_NOTES_REF=refs/notes/bar git notes --ref=baz get-ref)" = "refs/notes/baz"
'

test_expect_success 'setup testing of empty notes' '
        test_unconfig core.notesRef &&
        test_commit 16th &&
        empty_blob=$(git hash-object -w /dev/null) &&
        echo "$empty_blob" >expect_empty
'

while read cmd
do
        test_expect_success "'git notes $cmd' removes empty note" "
                test_might_fail git notes remove HEAD &&
                MSG= git notes $cmd &&
                test_must_fail git notes list HEAD
        "

        test_expect_success "'git notes $cmd --allow-empty' stores empty note" "
                test_might_fail git notes remove HEAD &&
                MSG= git notes $cmd --allow-empty &&
                git notes list HEAD >actual &&
                test_cmp expect_empty actual
        "
done <<\EOF
add
add -F /dev/null
add -m ""
add -c "$empty_blob"
add -C "$empty_blob"
append
append -F /dev/null
append -m ""
append -c "$empty_blob"
append -C "$empty_blob"
edit
EOF

test_expect_success 'empty notes are displayed by git log' '
        test_commit 17th &&
        git log -1 >expect &&
        cat >>expect <<-EOF &&

                Notes:
        EOF
        git notes add -C "$empty_blob" --allow-empty &&
        git log -1 >actual &&
        test_cmp expect actual
'

test_done