check that the specified source rpm exists

koji-packager

@@ -22,6 +22,8 @@
 #
 
 import argparse
+import pathlib
+import sys
 
 #
 # metadata
@@ -37,12 +39,17 @@ def parse_options():
   # define option parser
   parser = argparse.ArgumentParser(description='Build RPMs using Koji')
   parser.add_argument('--version', action='version', version=__version__)
-  parser.add_argument('source-rpm', nargs=1,
-    help='Source RPM to build with Koji')
+  parser.add_argument('srpm', nargs=1, help='Source RPM to build with Koji')
 
   # parse options
   args = parser.parse_args()
 
+  # check that source-rpm exists
+  srpm = pathlib.Path(args.srpm[0])
+  if not srpm.is_file():
+    print('File %s does not exist.' % args.srpm[0])
+    sys.exit(1)
+
   return args
 
 #
@@ -51,7 +58,7 @@ def parse_options():
 
 def main():
   args = parse_options()
-  print(args)
+  print('source-rpm = %s' % args.srpm[0])
 
 #
 # main program entry point