From 619c5f42a1bf0dcf16fd9210e0e4d7d42fecf5de Mon Sep 17 00:00:00 2001
From: John Tsiombikas <nuclear@mutantstargoat.com>
Date: Wed, 7 Dec 2016 17:07:17 +0200
Subject: [PATCH] prepare_data script now accepts a filter argument to process
 only a subset of data matching that filter (with grep)

---
 tools/prepare_data |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/prepare_data b/tools/prepare_data
index 76ced9f..c1bf5f8 100755
--- a/tools/prepare_data
+++ b/tools/prepare_data
@@ -3,6 +3,7 @@
 indir=datasrc
 descfile=$indir/datadesc
 outdir=data
+filter=$1
 
 process()
 {
@@ -33,10 +34,14 @@ copy()
 	fi
 }
 
+if [ -z "$filter" ]; then
+	filter='.*'
+fi
+
 mkdir -p $outdir
 
 while read line; do
-    line=$(echo $line | sed 's/#.*$//')
+    line=$(echo $line | sed 's/#.*$//' | grep "$filter")
     if [ -n "$line" ]; then
         path=$(echo $line | awk -F : '{ print $1; }')
         fname=$(basename $path)
-- 
1.7.10.4