# HG changeset patch
# User Tero Marttila <terom@paivola.fi>
# Date 1358037818 -7200
# Node ID f35b2940b7fc70fbe5cba2b159d3d2a35024e1b5
# Parent  f742c866c765ba41572f10ec20a727951a5698e8
pvl.syslog.args: implement --syslog-stdin using pvl.syslog.fifo.Pipe, lets us read from stdin without blocking

diff -r f742c866c765 -r f35b2940b7fc pvl/syslog/args.py
--- a/pvl/syslog/args.py	Sun Jan 13 02:43:15 2013 +0200
+++ b/pvl/syslog/args.py	Sun Jan 13 02:43:38 2013 +0200
@@ -26,6 +26,9 @@
     syslog.add_option('--syslog-tail',          metavar='FILE',
             help="Continuously poll syslog messages given file")
 
+    syslog.add_option('--syslog-stdin',         action='store_true',
+            help="Read syslog messages from stdin")
+
     syslog.add_option('--syslog-raw',           action='store_true',
             help="Parse raw syslog lines without timestamp/etc")
 
@@ -63,6 +66,11 @@
         source = file.File(open(options.syslog_file))
         poll = False # do not loop, just read up to EOF
 
+    elif options.syslog_stdin :
+        # read pipe
+        source = fifo.Pipe.file(sys.stdin) # puts stdin into non-blocking mode
+        poll = True # select(source)
+
     elif optional :
         return None