Added a quiet functionality

httpie/cli/argparser.py

@@ -135,10 +135,16 @@ class HTTPieArgumentParser(argparse.ArgumentParser):
         Modify `env.stdout` and `env.stdout_isatty` based on args, if needed.
 
         """
+        if self.args.quiet:
+            self.env.stdout = self.env.devnull
+            self.env.stdout_isatty = self.env.devnull_isatty
+            self.env.stderr = self.env.devnull
+            self.env.stderr_isatty = self.env.devnull_isatty
+
         self.args.output_file_specified = bool(self.args.output_file)
         if self.args.download:
             # FIXME: Come up with a cleaner solution.
-            if not self.args.output_file and not self.env.stdout_isatty:
+            if not self.args.output_file and not self.env.stdout_isatty and not self.args.quiet:
                 # Use stdout as the download output file.
                 self.args.output_file = self.env.stdout
             # With `--download`, we write everything that would normally go to

httpie/cli/definition.py

@@ -426,6 +426,16 @@ output_options.add_argument(
     '''
 )
 
+output_options.add_argument(
+    '--quiet', '-q',
+    action='store_true',
+    default=False,
+    help='''
+    Do not print to stdout or stderr.
+
+    '''
+)
+
 #######################################################################
 # Sessions
 #######################################################################