1 files changed, 42 insertions, 0 deletions
diff --git a/bin/find-unused-using.sh b/bin/find-unused-using.sh
new file mode 100755
index 0000000000..3521f64f49
--- /dev/null
+++ b/bin/find-unused-using.sh
@@ -0,0 +1,42 @@
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#!/bin/bash
+
+# TODO search also for 'using namespace com/::com/css' - this is likely the fattest target and clang-tidy can't do it
+for ns in accessibility basegfx chart com css cppu comphelper connectivity formula dbtools editeng rtl sfx2 svt osl oox sax_fastparser sal sd ucbhelper utl vcl xmloff; do
+    echo "Searching for namespace: $ns";
+    # search in cxx files, excluding URE headers, plus some files with false positives
+    for file in $(git grep -l "^\s*using :*$ns::" *hxx *cxx \
+        ':!include/com/' \
+        ':!include/cppu/' \
+        ':!include/cppuhelper/' \
+        ':!include/osl/' \
+        ':!include/rtl/' \
+        ':!include/sal/' \
+        ':!include/salhelper/' \
+        ':!include/systools/' \
+        ':!include/typelib/' \
+        ':!include/uno/' \
+        ':!include/sfx2/stbitem.hxx' \
+        ':!sw/source/uibase/inc/maildispatcher.hxx'
+        ) ; do
+        for class in $(git grep -h  "using :*$ns::" "$file" | rev | cut  -d : -f -1 | rev | cut -d " " -f 1 | tr -d ";") ; do
+            if [ "$ns" == "com" ] ; then # com namespace may be mentioned in relevant header name too
+                if [[ $(grep -c "$class" "$file") -eq 1 || $(grep -c "$class" "$file") -le 2 && $(grep -c -e "$class".hpp -e "$class".hxx -e "$class".h "$file") -eq 1 ]]; then
+                    echo "$file";
+                    echo "Class name in above file is mentioned once or twice: $class";
+                fi
+            else
+                if [ $(grep -c -F "$class" "$file") -eq 1 ]; then
+                    echo "$file";
+                    echo "Class name in above file is mentioned once: $class";
+                fi
+            fi
+        done
+    done
+done
+
+# vim: set noet sw=4 ts=4: