Abort requirement document creation on error

__init__.py

@@ -1,5 +1,6 @@
 import optparse
 import os
+import sys
 
 import xml_parser
 import reqif_conv
@@ -83,4 +84,4 @@ if __name__ == '__main__':
         tex_path = os.path.abspath(os.path.splitext(reqif_path)[0] + '.tex')
         reqif_data = reqif_dict(reqif_path, 'Heading', 'Software Specification')
         reqif_conv.tex_gen(reqif_data, tex_path)
-        reqif_conv.pdf_gen(tex_path)
+        sys.exit(reqif_conv.pdf_gen(tex_path))

reqif_conv.py

@@ -30,6 +30,8 @@ def pdf_gen(tex_path):
         exit_value = os.system("pdflatex -interaction nonstopmode %s 1> /dev/null" % tex_path)
         if exit_value != 0:
             print('FAILED')
+            return -1
             break
         else:
             print('SUCCESS')
+    return 0