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1 files changed, 35 insertions, 1 deletions

diff --git a/tool/lib/_tmpdir.rb b/tool/lib/_tmpdir.rb
index ddc263b563..c74db70786 100644
--- a/tool/lib/_tmpdir.rb
+++ b/tool/lib/_tmpdir.rb
@@ -13,7 +13,41 @@ end
 pid = $$
 END {
   if pid == $$
-    FileUtils.rm_rf(tmpdir)
+    begin
+      Dir.rmdir(tmpdir)
+    rescue Errno::ENOENT
+    rescue Errno::ENOTEMPTY
+      require_relative "colorize"
+      colorize = Colorize.new
+      mode_inspect = ->(m, s) {
+        [
+          (m & 0o4 == 0 ? ?- : ?r),
+          (m & 0o2 == 0 ? ?- : ?w),
+          (m & 0o1 == 0 ? (s ? s.upcase : ?-) : (s || ?x)),
+        ]
+      }
+      filecolor = ->(st) {
+        st.directory? ? "bold;blue" : st.link? ? "bold;cyan" : st.executable? ? "bold;green" : nil
+      }
+      warn colorize.notice("Children under ")+colorize.fail(tmpdir)+":"
+      Dir.children(tmpdir).each do |child|
+        path = File.join(tmpdir, child)
+        st = File.lstat(path)
+        m = st.mode
+        m = [
+          (st.file? ? ?- : st.ftype[0]),
+          mode_inspect[m >> 6, (?s unless m & 04000 == 0)],
+          mode_inspect[m >> 3, (?s unless m & 02000 == 0)],
+          mode_inspect[m,      (?t unless m & 01000 == 0)],
+        ].join("")
+        warn [
+          " ", m, st.nlink, st.size, st.mtime,
+          colorize.decorate(child,  filecolor[st]),
+          (["->", colorize.cyan(File.readlink(path))] if st.symlink?),
+        ].compact.join(" ")
+      end
+      FileUtils.rm_rf(tmpdir)
+    end
   end
 }