difftool --no-index: error out on --dir-diff (and don't crash)

diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 90c3ca70e6b9f6b4d8bfaa28db90c8ec19c4cf85..b60b11f9f2f820bb7347a845eb66524528c668f9 100755 (executable)
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -124,11 +124,20 @@ test_expect_success 'rebase -i with exec allows git commands in subdirs' '
        git checkout master &&
        mkdir subdir && (cd subdir &&
        set_fake_editor &&
-       FAKE_LINES="1 exec_cd_subdir_&&_git_rev-parse_--is-inside-work-tree" \
+       FAKE_LINES="1 x_cd_subdir_&&_git_rev-parse_--is-inside-work-tree" \
                git rebase -i HEAD^
        )
 '
 
+test_expect_success 'rebase -i sets work tree properly' '
+       test_when_finished "rm -rf subdir" &&
+       test_when_finished "test_might_fail git rebase --abort" &&
+       mkdir subdir &&
+       git rebase -x "(cd subdir && git rev-parse --show-toplevel)" HEAD^ \
+               >actual &&
+       ! grep "/subdir$" actual
+'
+
 test_expect_success 'rebase -i with the exec command checks tree cleanness' '
        git checkout master &&
        set_fake_editor &&
@@ -138,6 +147,28 @@ test_expect_success 'rebase -i with the exec command checks tree cleanness' '
        git rebase --continue
 '
 
+test_expect_success 'rebase -x with empty command fails' '
+       test_when_finished "git rebase --abort ||:" &&
+       test_must_fail env GIT_TEST_REBASE_USE_BUILTIN=true \
+               git rebase -x "" @ 2>actual &&
+       test_write_lines "error: empty exec command" >expected &&
+       test_i18ncmp expected actual &&
+       test_must_fail env GIT_TEST_REBASE_USE_BUILTIN=true \
+               git rebase -x " " @ 2>actual &&
+       test_i18ncmp expected actual
+'
+
+LF='
+'
+test_expect_success 'rebase -x with newline in command fails' '
+       test_when_finished "git rebase --abort ||:" &&
+       test_must_fail env GIT_TEST_REBASE_USE_BUILTIN=true \
+               git rebase -x "a${LF}b" @ 2>actual &&
+       test_write_lines "error: exec commands cannot contain newlines" \
+                        >expected &&
+       test_i18ncmp expected actual
+'
+
 test_expect_success 'rebase -i with exec of inexistent command' '
        git checkout master &&
        test_when_finished "git rebase --abort" &&
@@ -147,6 +178,11 @@ test_expect_success 'rebase -i with exec of inexistent command' '
        ! grep "Maybe git-rebase is broken" actual
 '
 
+test_expect_success 'implicit interactive rebase does not invoke sequence editor' '
+       test_when_finished "git rebase --abort ||:" &&
+       GIT_SEQUENCE_EDITOR="echo bad >" git rebase -x"echo one" @^
+'
+
 test_expect_success 'no changes are a nop' '
        git checkout branch2 &&
        set_fake_editor &&
@@ -274,11 +310,18 @@ test_expect_success 'retain authorship' '
 '
 
 test_expect_success 'retain authorship w/ conflicts' '
+       oGIT_AUTHOR_NAME=$GIT_AUTHOR_NAME &&
+       test_when_finished "GIT_AUTHOR_NAME=\$oGIT_AUTHOR_NAME" &&
+
        git reset --hard twerp &&
        test_commit a conflict a conflict-a &&
        git reset --hard twerp &&
-       GIT_AUTHOR_NAME=AttributeMe \
+
+       GIT_AUTHOR_NAME=AttributeMe &&
+       export GIT_AUTHOR_NAME &&
        test_commit b conflict b conflict-b &&
+       GIT_AUTHOR_NAME=$oGIT_AUTHOR_NAME &&
+
        set_fake_editor &&
        test_must_fail git rebase -i conflict-a &&
        echo resolved >conflict &&
@@ -306,7 +349,7 @@ test_expect_success 'retain authorship when squashing' '
        git show HEAD | grep "^Author: Twerp Snog"
 '
 
-test_expect_success '-p handles "no changes" gracefully' '
+test_expect_success REBASE_P '-p handles "no changes" gracefully' '
        HEAD=$(git rev-parse HEAD) &&
        set_fake_editor &&
        git rebase -i -p HEAD^ &&
@@ -316,7 +359,7 @@ test_expect_success '-p handles "no changes" gracefully' '
        test $HEAD = $(git rev-parse HEAD)
 '
 
-test_expect_failure 'exchange two commits with -p' '
+test_expect_failure REBASE_P 'exchange two commits with -p' '
        git checkout H &&
        set_fake_editor &&
        FAKE_LINES="2 1" git rebase -i -p HEAD~2 &&
@@ -324,7 +367,7 @@ test_expect_failure 'exchange two commits with -p' '
        test G = $(git cat-file commit HEAD | sed -ne \$p)
 '
 
-test_expect_success 'preserve merges with -p' '
+test_expect_success REBASE_P 'preserve merges with -p' '
        git checkout -b to-be-preserved master^ &&
        : > unrelated-file &&
        git add unrelated-file &&
@@ -367,7 +410,7 @@ test_expect_success 'preserve merges with -p' '
        test $(git show HEAD:unrelated-file) = 1
 '
 
-test_expect_success 'edit ancestor with -p' '
+test_expect_success REBASE_P 'edit ancestor with -p' '
        set_fake_editor &&
        FAKE_LINES="1 2 edit 3 4" git rebase -i -p HEAD~3 &&
        echo 2 > unrelated-file &&
@@ -381,6 +424,7 @@ test_expect_success 'edit ancestor with -p' '
 '
 
 test_expect_success '--continue tries to commit' '
+       git reset --hard D &&
        test_tick &&
        set_fake_editor &&
        test_must_fail git rebase -i --onto new-branch1 HEAD^ &&
@@ -420,7 +464,7 @@ test_expect_success C_LOCALE_OUTPUT 'multi-fixup does not fire up editor' '
                git rebase -i $base &&
        test $base = $(git rev-parse HEAD^) &&
        test 0 = $(git show | grep NEVER | wc -l) &&
-       git checkout to-be-rebased &&
+       git checkout @{-1} &&
        git branch -D multi-fixup
 '
 
@@ -435,7 +479,7 @@ test_expect_success 'commit message used after conflict' '
                git rebase --continue &&
        test $base = $(git rev-parse HEAD^) &&
        test 1 = $(git show | grep ONCE | wc -l) &&
-       git checkout to-be-rebased &&
+       git checkout @{-1} &&
        git branch -D conflict-fixup
 '
 
@@ -450,7 +494,7 @@ test_expect_success 'commit message retained after conflict' '
                git rebase --continue &&
        test $base = $(git rev-parse HEAD^) &&
        test 2 = $(git show | grep TWICE | wc -l) &&
-       git checkout to-be-rebased &&
+       git checkout @{-1} &&
        git branch -D conflict-squash
 '
 
@@ -475,7 +519,7 @@ test_expect_success C_LOCALE_OUTPUT 'squash and fixup generate correct log messa
                grep "^# This is a combination of 3 commits\."  &&
        git cat-file commit HEAD@{3} |
                grep "^# This is a combination of 2 commits\."  &&
-       git checkout to-be-rebased &&
+       git checkout @{-1} &&
        git branch -D squash-fixup
 '
 
@@ -488,7 +532,7 @@ test_expect_success C_LOCALE_OUTPUT 'squash ignores comments' '
                git rebase -i $base &&
        test $base = $(git rev-parse HEAD^) &&
        test 1 = $(git show | grep ONCE | wc -l) &&
-       git checkout to-be-rebased &&
+       git checkout @{-1} &&
        git branch -D skip-comments
 '
 
@@ -501,7 +545,7 @@ test_expect_success C_LOCALE_OUTPUT 'squash ignores blank lines' '
                git rebase -i $base &&
        test $base = $(git rev-parse HEAD^) &&
        test 1 = $(git show | grep ONCE | wc -l) &&
-       git checkout to-be-rebased &&
+       git checkout @{-1} &&
        git branch -D skip-blank-lines
 '
 
@@ -509,7 +553,7 @@ test_expect_success 'squash works as expected' '
        git checkout -b squash-works no-conflict-branch &&
        one=$(git rev-parse HEAD~3) &&
        set_fake_editor &&
-       FAKE_LINES="1 squash 3 2" EXPECT_HEADER_COUNT=2 \
+       FAKE_LINES="1 s 3 2" EXPECT_HEADER_COUNT=2 \
                git rebase -i HEAD~3 &&
        test $one = $(git rev-parse HEAD~2)
 '
@@ -519,7 +563,7 @@ test_expect_success 'interrupted squash works as expected' '
        one=$(git rev-parse HEAD~3) &&
        set_fake_editor &&
        test_must_fail env FAKE_LINES="1 squash 3 2" git rebase -i HEAD~3 &&
-       (echo one; echo two; echo four) > conflict &&
+       test_write_lines one two four > conflict &&
        git add conflict &&
        test_must_fail git rebase --continue &&
        echo resolved > conflict &&
@@ -533,10 +577,10 @@ test_expect_success 'interrupted squash works as expected (case 2)' '
        one=$(git rev-parse HEAD~3) &&
        set_fake_editor &&
        test_must_fail env FAKE_LINES="3 squash 1 2" git rebase -i HEAD~3 &&
-       (echo one; echo four) > conflict &&
+       test_write_lines one four > conflict &&
        git add conflict &&
        test_must_fail git rebase --continue &&
-       (echo one; echo two; echo four) > conflict &&
+       test_write_lines one two four > conflict &&
        git add conflict &&
        test_must_fail git rebase --continue &&
        echo resolved > conflict &&
@@ -642,7 +686,7 @@ test_expect_success 'rebase with a file named HEAD in worktree' '
        ) &&
 
        set_fake_editor &&
-       FAKE_LINES="1 squash 2" git rebase -i to-be-rebased &&
+       FAKE_LINES="1 squash 2" git rebase -i @{-1} &&
        test "$(git show -s --pretty=format:%an)" = "Squashed Away"
 
 '
@@ -742,7 +786,7 @@ test_expect_success 'reword' '
        git show HEAD^ | grep "D changed" &&
        FAKE_LINES="reword 1 2 3 4" FAKE_COMMIT_MESSAGE="B changed" git rebase -i A &&
        git show HEAD~3 | grep "B changed" &&
-       FAKE_LINES="1 reword 2 3 4" FAKE_COMMIT_MESSAGE="C changed" git rebase -i A &&
+       FAKE_LINES="1 r 2 pick 3 p 4" FAKE_COMMIT_MESSAGE="C changed" git rebase -i A &&
        git show HEAD~2 | grep "C changed"
 '
 
@@ -768,7 +812,7 @@ test_expect_success 'rebase -i can copy notes over a fixup' '
        git reset --hard n3 &&
        git notes add -m"an earlier note" n2 &&
        set_fake_editor &&
-       GIT_NOTES_REWRITE_MODE=concatenate FAKE_LINES="1 fixup 2" git rebase -i n1 &&
+       GIT_NOTES_REWRITE_MODE=concatenate FAKE_LINES="1 f 2" git rebase -i n1 &&
        git notes show > output &&
        test_cmp expect output
 '
@@ -789,16 +833,15 @@ test_expect_success 'always cherry-pick with --no-ff' '
        git tag original-no-ff-branch &&
        set_fake_editor &&
        git rebase -i --no-ff A &&
-       touch empty &&
        for p in 0 1 2
        do
                test ! $(git rev-parse HEAD~$p) = $(git rev-parse original-no-ff-branch~$p) &&
                git diff HEAD~$p original-no-ff-branch~$p > out &&
-               test_cmp empty out
+               test_must_be_empty out
        done &&
        test $(git rev-parse HEAD~3) = $(git rev-parse original-no-ff-branch~3) &&
        git diff HEAD~3 original-no-ff-branch~3 > out &&
-       test_cmp empty out
+       test_must_be_empty out
 '
 
 test_expect_success 'set up commits with funny messages' '
@@ -1240,13 +1283,13 @@ rebase_setup_and_clean () {
                test_might_fail git branch -D $1 &&
                test_might_fail git rebase --abort
        " &&
-       git checkout -b $1 master
+       git checkout -b $1 ${2:-master}
 }
 
 test_expect_success 'drop' '
        rebase_setup_and_clean drop-test &&
        set_fake_editor &&
-       FAKE_LINES="1 drop 2 3 drop 4 5" git rebase -i --root &&
+       FAKE_LINES="1 drop 2 3 d 4 5" git rebase -i --root &&
        test E = $(git cat-file commit HEAD | sed -ne \$p) &&
        test C = $(git cat-file commit HEAD^ | sed -ne \$p) &&
        test A = $(git cat-file commit HEAD^^ | sed -ne \$p)
@@ -1417,4 +1460,24 @@ test_expect_success 'rebase -i --gpg-sign=<key-id> overrides commit.gpgSign' '
        test_i18ngrep "$SQ-S\"S I Gner\"$SQ" err
 '
 
+test_expect_success 'valid author header after --root swap' '
+       rebase_setup_and_clean author-header no-conflict-branch &&
+       set_fake_editor &&
+       git commit --amend --author="Au ${SQ}thor <author@example.com>" --no-edit &&
+       git cat-file commit HEAD | grep ^author >expected &&
+       FAKE_LINES="5 1" git rebase -i --root &&
+       git cat-file commit HEAD^ | grep ^author >actual &&
+       test_cmp expected actual
+'
+
+test_expect_success 'valid author header when author contains single quote' '
+       rebase_setup_and_clean author-header no-conflict-branch &&
+       set_fake_editor &&
+       git commit --amend --author="Au ${SQ}thor <author@example.com>" --no-edit &&
+       git cat-file commit HEAD | grep ^author >expected &&
+       FAKE_LINES="2" git rebase -i HEAD~2 &&
+       git cat-file commit HEAD | grep ^author >actual &&
+       test_cmp expected actual
+'
+
 test_done