[report] Fix report script and inherit std file descriptors when invoking

Reviewed By: jvillard

Differential Revision: D4204865

fbshipit-source-id: 2a0ea7e

infer/lib/python/report.py

@@ -40,8 +40,8 @@ def main():
     sys_argv = map(utils.decode, sys.argv)
     args = arg_parser.parse_args(sys_argv[1:])
     bugs_out = os.path.join(args.results_dir, config.BUGS_FILENAME)
-    issues.print_and_save_errors(args.project_root, args.issues_json, bugs_out,
+    issues.print_and_save_errors(args.results_dir, args.project_root,
-                                 args.pmd_xml)
+                                 args.issues_json, bugs_out, args.pmd_xml)
 
 if __name__ == '__main__':
     main()

infer/src/backend/infer.ml

@@ -244,7 +244,7 @@ let report () =
           "--project-root"; Config.project_root;
           "--results-dir"; Config.results_dir
         ] in
-      Unix.waitpid (Unix.create_process ~prog ~args).pid |> ignore
+      Unix.waitpid (Unix.fork_exec ~prog ~args:(prog :: args) ()) |> ignore
 
 let analyze = function
   | Buck when Config.use_compilation_database = None ->