Get rid of temporary files alltogether

Signed-off-by: Patrick Uiterwijk <puiterwijk@redhat.com>

roles/postgresql_server/files/datagrepper_sar.py

@@ -3,11 +3,9 @@
 from __future__ import unicode_literals, print_function
 
 import os
-import random
 import string
 import subprocess
 import sys
-import tempfile
 
 
 def main():
@@ -21,11 +19,6 @@ def main():
         print('An username is required to query datagrepper')
         return 1
 
-    tempfilename = '/tmp/sar_{0}_{1}'.format(username, ''.join(
-        [random.choice(string.ascii_letters + string.digits)
-         for n in xrange(10)]
-    ))
-
     # Get all messages related to this user.
     query = '''
 COPY (
@@ -41,17 +34,11 @@ COPY (
       WHERE messages.username = '{username}'
   )
 )
-TO '{tmpfile}' delimiter ',' CSV header;
+TO STDOUT delimiter ',' CSV header;
 '''
     query = query.format(username=username, tmpfile=tempfilename)
     command = ['sudo', '-u', 'postgres', 'psql', 'datanommer', '-c', '"%s"' % query]
-    subprocess.check_call(
-        ' '.join(command), shell=True, stdout=subprocess.PIPE,
-        cwd='/tmp')
-    with open(tempfilename) as stream:
-        for line in stream:
-            print(line)
-    os.unlink(tempfilename)
+    subprocess.check_call(' '.join(command), shell=True, cwd='/tmp')
 
 
 if __name__ == '__main__':