difftool: fallback on merge.guitool

diff --git a/t/t3430-rebase-merges.sh b/t/t3430-rebase-merges.sh
index ce6de6f491e5a6bf5f1d767e14af2b19c467330b..aa7bfc88ece9de7f542f354c78b7be9ec6d2bdf7 100755 (executable)
--- a/t/t3430-rebase-merges.sh
+++ b/t/t3430-rebase-merges.sh
@@ -13,8 +13,10 @@ Initial setup:
     -- B --                   (first)
    /       \
  A - C - D - E - H            (master)
-       \       /
-         F - G                (second)
+   \    \       /
+    \    F - G                (second)
+     \
+      Conflicting-G
 '
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-rebase.sh
@@ -49,7 +51,9 @@ test_expect_success 'setup' '
        git merge --no-commit G &&
        test_tick &&
        git commit -m H &&
-       git tag -m H H
+       git tag -m H H &&
+       git checkout A &&
+       test_commit conflicting-G G.t
 '
 
 test_expect_success 'create completely different structure' '
@@ -72,7 +76,7 @@ test_expect_success 'create completely different structure' '
        EOF
        test_config sequence.editor \""$PWD"/replace-editor.sh\" &&
        test_tick &&
-       git rebase -i -r A &&
+       git rebase -i -r A master &&
        test_cmp_graph <<-\EOF
        *   Merge the topic branch '\''onebranch'\''
        |\
@@ -125,7 +129,7 @@ test_expect_success '`reset` refuses to overwrite untracked files' '
        git rebase --abort
 '
 
-test_expect_success 'failed `merge` writes patch (may be rescheduled, too)' '
+test_expect_success 'failed `merge -C` writes patch (may be rescheduled, too)' '
        test_when_finished "test_might_fail git rebase --abort" &&
        git checkout -b conflicting-merge A &&
 
@@ -141,13 +145,25 @@ test_expect_success 'failed `merge` writes patch (may be rescheduled, too)' '
 
        : fail because of merge conflict &&
        rm G.t .git/rebase-merge/patch &&
-       git reset --hard &&
-       test_commit conflicting-G G.t not-G conflicting-G &&
+       git reset --hard conflicting-G &&
        test_must_fail git rebase --continue &&
        ! grep "^merge -C .* G$" .git/rebase-merge/git-rebase-todo &&
        test_path_is_file .git/rebase-merge/patch
 '
 
+SQ="'"
+test_expect_success 'failed `merge <branch>` does not crash' '
+       test_when_finished "test_might_fail git rebase --abort" &&
+       git checkout conflicting-G &&
+
+       echo "merge G" >script-from-scratch &&
+       test_config sequence.editor \""$PWD"/replace-editor.sh\" &&
+       test_tick &&
+       test_must_fail git rebase -ir HEAD &&
+       ! grep "^merge G$" .git/rebase-merge/git-rebase-todo &&
+       grep "^Merge branch ${SQ}G${SQ}$" .git/rebase-merge/message
+'
+
 test_expect_success 'with a branch tip that was cherry-picked already' '
        git checkout -b already-upstream master &&
        base="$(git rev-parse --verify HEAD)" &&
@@ -313,4 +329,71 @@ test_expect_success 'A root commit can be a cousin, treat it that way' '
        EOF
 '
 
+test_expect_success 'labels that are object IDs are rewritten' '
+       git checkout -b third B &&
+       test_commit I &&
+       third=$(git rev-parse HEAD) &&
+       git checkout -b labels master &&
+       git merge --no-commit third &&
+       test_tick &&
+       git commit -m "Merge commit '\''$third'\'' into labels" &&
+       echo noop >script-from-scratch &&
+       test_config sequence.editor \""$PWD"/replace-editor.sh\" &&
+       test_tick &&
+       git rebase -i -r A &&
+       grep "^label $third-" .git/ORIGINAL-TODO &&
+       ! grep "^label $third$" .git/ORIGINAL-TODO
+'
+
+test_expect_success 'octopus merges' '
+       git checkout -b three &&
+       test_commit before-octopus &&
+       test_commit three &&
+       git checkout -b two HEAD^ &&
+       test_commit two &&
+       git checkout -b one HEAD^ &&
+       test_commit one &&
+       test_tick &&
+       (GIT_AUTHOR_NAME="Hank" GIT_AUTHOR_EMAIL="hank@sea.world" \
+        git merge -m "Tüntenfüsch" two three) &&
+
+       : fast forward if possible &&
+       before="$(git rev-parse --verify HEAD)" &&
+       test_tick &&
+       git rebase -i -r HEAD^^ &&
+       test_cmp_rev HEAD $before &&
+
+       test_tick &&
+       git rebase -i --force -r HEAD^^ &&
+       test "Hank" = "$(git show -s --format=%an HEAD)" &&
+       test "$before" != $(git rev-parse HEAD) &&
+       test_cmp_graph HEAD^^.. <<-\EOF
+       *-.   Tüntenfüsch
+       |\ \
+       | | * three
+       | * | two
+       | |/
+       * | one
+       |/
+       o before-octopus
+       EOF
+'
+
+test_expect_success 'with --autosquash and --exec' '
+       git checkout -b with-exec H &&
+       echo Booh >B.t &&
+       test_tick &&
+       git commit --fixup B B.t &&
+       write_script show.sh <<-\EOF &&
+       subject="$(git show -s --format=%s HEAD)"
+       content="$(git diff HEAD^! | tail -n 1)"
+       echo "$subject: $content"
+       EOF
+       test_tick &&
+       git rebase -ir --autosquash --exec ./show.sh A >actual &&
+       grep "B: +Booh" actual &&
+       grep "E: +Booh" actual &&
+       grep "G: +G" actual
+'
+
 test_done