diff --git a/.gitignore b/.gitignore
index 9e8c92b..14e685b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,9 @@ src/test-harness/twtest
 **/*.dll
 **/*.exe
 **/*~
+**/*#
 **/*.bak
 **/.DS_Store
+**/*.gcno
+**/*.gcda
 releases/
diff --git a/lcov.sh b/lcov.sh
new file mode 100755
index 0000000..b8f85c5
--- /dev/null
+++ b/lcov.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+if [ -d ./lcov ]; then
+  rm -Rf ./lcov
+fi
+
+if [ -e ./lcov.dat ]; then
+  rm ./lcov.dat
+fi
+
+if [ -e ./lcov.tgz ]; then
+  rm ./lcov.tgz
+fi
+
+lcov --capture --directory src --output-file ./lcov.dat
+genhtml ./lcov.dat --output-directory lcov
+tar -zcvf lcov.tgz lcov
+