difftool: handle unmerged files in dir-diff mode

diff --git a/t/t9903-bash-prompt.sh b/t/t9903-bash-prompt.sh
index 49d58e6726836194e7a716365007465056744fc5..ffbfa0efb8712f06cb14adc986ae29c4d1c23bf1 100755 (executable)
--- a/t/t9903-bash-prompt.sh
+++ b/t/t9903-bash-prompt.sh
@@ -67,7 +67,7 @@ repo_with_newline='repo
 with
 newline'
 
-if mkdir "$repo_with_newline" 2>/dev/null
+if test_have_prereq !MINGW && mkdir "$repo_with_newline" 2>/dev/null
 then
        test_set_prereq FUNNYNAMES
 else
@@ -273,11 +273,36 @@ test_expect_success 'prompt - dirty status indicator - dirty index and worktree'
        test_cmp expected "$actual"
 '
 
-test_expect_success 'prompt - dirty status indicator - before root commit' '
-       printf " (master #)" >expected &&
+test_expect_success 'prompt - dirty status indicator - orphan branch - clean' '
+       printf " (orphan #)" >expected &&
+       test_when_finished "git checkout master" &&
+       git checkout --orphan orphan &&
+       git reset --hard &&
+       (
+               GIT_PS1_SHOWDIRTYSTATE=y &&
+               __git_ps1 >"$actual"
+       ) &&
+       test_cmp expected "$actual"
+'
+
+test_expect_success 'prompt - dirty status indicator - orphan branch - dirty index' '
+       printf " (orphan +)" >expected &&
+       test_when_finished "git checkout master" &&
+       git checkout --orphan orphan &&
+       (
+               GIT_PS1_SHOWDIRTYSTATE=y &&
+               __git_ps1 >"$actual"
+       ) &&
+       test_cmp expected "$actual"
+'
+
+test_expect_success 'prompt - dirty status indicator - orphan branch - dirty index and worktree' '
+       printf " (orphan *+)" >expected &&
+       test_when_finished "git checkout master" &&
+       git checkout --orphan orphan &&
+       >file &&
        (
                GIT_PS1_SHOWDIRTYSTATE=y &&
-               cd otherrepo &&
                __git_ps1 >"$actual"
        ) &&
        test_cmp expected "$actual"
@@ -397,6 +422,31 @@ test_expect_success 'prompt - untracked files status indicator - untracked files
        test_cmp expected "$actual"
 '
 
+test_expect_success 'prompt - untracked files status indicator - empty untracked dir' '
+       printf " (master)" >expected &&
+       mkdir otherrepo/untracked-dir &&
+       test_when_finished "rm -rf otherrepo/untracked-dir" &&
+       (
+               GIT_PS1_SHOWUNTRACKEDFILES=y &&
+               cd otherrepo &&
+               __git_ps1 >"$actual"
+       ) &&
+       test_cmp expected "$actual"
+'
+
+test_expect_success 'prompt - untracked files status indicator - non-empty untracked dir' '
+       printf " (master %%)" >expected &&
+       mkdir otherrepo/untracked-dir &&
+       test_when_finished "rm -rf otherrepo/untracked-dir" &&
+       >otherrepo/untracked-dir/untracked-file &&
+       (
+               GIT_PS1_SHOWUNTRACKEDFILES=y &&
+               cd otherrepo &&
+               __git_ps1 >"$actual"
+       ) &&
+       test_cmp expected "$actual"
+'
+
 test_expect_success 'prompt - untracked files status indicator - untracked files outside cwd' '
        printf " (master %%)" >expected &&
        (