--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/buildutils/errortail.py	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,42 @@
+#
+# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+# All rights reserved.
+# This component and the accompanying materials are made available
+# under the terms of "Eclipse Public License v1.0"
+# which accompanies this distribution, and is available
+# at the URL "http://www.eclipse.org/legal/epl-v10.html".
+#
+# Initial Contributors:
+# Nokia Corporation - initial contribution.
+#
+# Contributors:
+#
+# Description: 
+#
+
+import sys, re, os, os.path, fnmatch
+
+# This utility reads a compilation log file, and writes last 50 lines up to error 
+# to an output tail file. If no errors, then file is not written
+
+RE_ERROR = re.compile(r"fatal error|Build FAILED|make(\.exe)?(\[[^]]+\])?: \*\*\* .+ (Error [0-9]+|Stop\.)|.+[0-9]+: error:|status exit='failed'|<error>.*</error>|<center>[1-9]*</center></td><td><center>High</center>")
+
+def errortail(logfile, tailfile, tailLines = 50):
+    tail = []
+    for line in open(logfile).readlines():
+        tail.append(line.rstrip())
+        if (len(tail) > tailLines):
+            del tail[0]
+        if RE_ERROR.search(line):
+            tail = tail[-50:]
+            open(tailfile, "w").write("\n".join(tail))
+            return
+
+def main():
+    if len(sys.argv) != 3:
+        print "Usage: %s <build log file> <tail output file>" % sys.argv[0]
+        sys.exit(1)
+    errortail(sys.argv[1], sys.argv[2])
+
+if __name__ == "__main__":
+    main()