Add whitelist script

scripts/whitelist.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env sh
+# Removes any domains it find on the whitelist
+#
+
+# Remove temp file from previous runs if needed
+rm -f merged.tmp
+
+# Merge all files into one
+cat ../hosts* > merged.tmp
+
+# Remove the old lists
+rm -f ../hosts*
+
+# Remove duplicates
+sort < merged.tmp | uniq > merged
+
+# Check whitelist and remove matches
+comm -2 -3 merged ../whitelist > merged2
+mv merged2 merged
+
+# Split the merged file into 90MB chunks to avoid GitHub's limit
+split merged hosts -C 90MB -d
+
+# Move the new hosts files and the merged list to the parent directory
+mv hosts* ..
+mv merged ..
+
+# Show how many changes in total
+git diff --stat ../hosts*
+
+# Remove tmp files
+rm -- merged.tmp