add test to verify consistency of root dir

test/toplevel-perms.sh

@@ -0,0 +1,48 @@
+#!/bin/sh
+
+TRY_TOP="${TRY_TOP:-$(git rev-parse --show-toplevel --show-superproject-working-tree)}"
+TRY="$TRY_TOP/try"
+
+cleanup() {
+    cd /
+
+    if [ -d "$try_workspace" ]
+    then
+        rm -rf "$try_workspace" >/dev/null 2>&1
+    fi
+
+    if [ -f "$expected" ]
+    then
+        rm "$expected"
+    fi
+
+    if [ -f "$target" ]
+    then
+        rm "$target"
+    fi
+
+    if [ -f "$cmd" ]
+    then
+        rm "$cmd"
+    fi
+}
+
+trap 'cleanup' EXIT
+
+try_workspace="$(mktemp -d)"
+cd "$try_workspace" || return 9
+touch test
+
+cmd="$(mktemp)"
+echo "find / -maxdepth 1 -print0 | xargs -0 ls -ld | awk '{print \$1, \$3, \$4, \$9, \$10, \$11}' | grep -v 'proc' | grep -v 'swap'" > $cmd
+
+# Set up expected output
+expected="$(mktemp)"
+sh $cmd >"$expected"
+
+# Set up target output
+target="$(mktemp)"
+
+"$TRY" "sh $cmd" > "$target" || return 1
+#diff -q "$expected" "$target"
+diff "$expected" "$target"