--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dbkit_merge.py	Wed Dec 16 12:02:48 2020 +0000
@@ -0,0 +1,63 @@
+#! /usr/bin/env python3
+import argparse
+from os import system
+from os.path import getsize
+
+from dbkit_package.DBKit import DBKit
+
+
+def main(args):
+    logFile = open(args.log, "w")
+    outIndex = args.outindex
+    outData = args.outdata
+    if getsize(args.firstindex) > getsize(args.secondindex):
+        firstIndex = args.firstindex
+        firstData = args.firstdata
+        secondIndex = args.secondindex
+        secondData = args.seconddata
+    else:
+        firstIndex = args.secondindex
+        firstData = args.seconddata
+        secondIndex = args.firstindex
+        secondData = args.firstdata
+    system("cp %s %s" % (firstIndex, outIndex))
+    system("cp %s %s" % (firstData, outData))
+    firstEntries = set()
+    with open(firstIndex, "r") as f:
+        for line in f:
+            name = line.split()[0]
+            firstEntries.add(name)
+    logFile.write("Detected %s entries.\n" % len(firstEntries))
+    secondEntries = list()
+    with open(secondIndex, "r") as f:
+        for line in f:
+            name = line.split()[0]
+            secondEntries.append(name)
+    tempFile = "temp.dat"
+    count = 0
+    dbkit = DBKit(secondIndex, secondData)
+    for secondKey in secondEntries:
+        if secondKey not in firstEntries:
+            dbkit.createFile(secondKey, tempFile)
+            entrySize = getsize(tempFile)
+            currentSize = getsize(outData)
+            system("cat %s >> %s" % (tempFile, outData))
+            system("echo '%s\t%s\t%s' >> %s" % (secondKey, currentSize, entrySize, outIndex))
+            count = count + 1
+        else:
+            logFile.write("Skipping existing entry %s.\n" % secondKey)
+    logFile.write("Added %s entries.\n" % count)
+    logFile.close()
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description='DBKit - Merge database pair.')
+    parser.add_argument('-fi', '--firstindex', help='First Index file', required=True)
+    parser.add_argument('-fd', '--firstdata', help='First Data file', required=True)
+    parser.add_argument('-si', '--secondindex', help='Second Index file', required=True)
+    parser.add_argument('-sd', '--seconddata', help='Second Data file', required=True)
+    parser.add_argument('-oi', '--outindex', help='Output Index file', required=True)
+    parser.add_argument('-od', '--outdata', help='Output Data file', required=True)
+    parser.add_argument('-log', '--log', help='Log file', required=True)
+    args = parser.parse_args()
+    main(args)