tree-diff: convert diff_root_tree_sha1() to just call diff_tree_sha1 with old=NULL

diff --git a/t/t3001-ls-files-others-exclude.sh b/t/t3001-ls-files-others-exclude.sh
index ec4fae2f3978d5a1127dfb7f20690b60a61bd013..b2798feef7316e74584058f594e97af01cb5065e 100755 (executable)
--- a/t/t3001-ls-files-others-exclude.sh
+++ b/t/t3001-ls-files-others-exclude.sh
@@ -103,7 +103,7 @@ test_expect_success \
      test_cmp expect output'
 
 test_expect_success 'restore gitignore' '
-       git checkout $allignores &&
+       git checkout --ignore-skip-worktree-bits $allignores &&
        rm .git/index
 '
 
@@ -115,7 +115,7 @@ EOF
 
 git config core.excludesFile excludes-file
 
-git status | grep "^#  " > output
+git -c status.displayCommentPrefix=true status | grep "^#      " > output
 
 cat > expect << EOF
 #      .gitignore
@@ -175,6 +175,24 @@ test_expect_success 'negated exclude matches can override previous ones' '
        grep "^a.1" output
 '
 
+test_expect_success 'excluded directory overrides content patterns' '
+
+       git ls-files --others --exclude="one" --exclude="!one/a.1" >output &&
+       if grep "^one/a.1" output
+       then
+               false
+       fi
+'
+
+test_expect_success 'negated directory doesn'\''t affect content patterns' '
+
+       git ls-files --others --exclude="!one" --exclude="one/a.1" >output &&
+       if grep "^one/a.1" output
+       then
+               false
+       fi
+'
+
 test_expect_success 'subdirectory ignore (setup)' '
        mkdir -p top/l1/l2 &&
        (