Initial commit of tools.

diff-tagfiles

@@ -0,0 +1,28 @@
+#!/bin/bash
+# Version: 0.0.1
+# Copyright (c) 2017:
+#   Darren 'Tadgy' Austin <darren (at) afterdark.org.uk>
+# Licensed under the terms of the GNU General Public License version 3.
+#
+# diff_tagfiles - display the differences between two tagfile sets, ignoring priorities.
+#
+
+if [ $# -ne 2 ]; then
+  echo "Usage: $0 <old dir> <new dir>"
+  exit 1
+fi
+
+if [ ! -d "$1" -o ! -d "$2" ]; then
+  echo "Directory doesn't exist."
+  exit 1
+fi
+
+for D in a ap d e f k kde kdei l n t tcl x xap xfce y; do
+  # Get the package lists without any priorities included.
+  cat $1/$D/tagfile | cut -d: -f1 >/tmp/t.old.$$
+  cat $2/$D/tagfile | cut -d: -f1 >/tmp/t.new.$$
+
+  # Diff them.
+  diff -u /tmp/t.old.$$ /tmp/t.new.$$ | \
+    sed -e "s:/tmp/t\.old\.$$:$1/$D/tagfile:g" -e "s:/tmp/t\.new\.$$:$2/$D/tagfile:g"
+done