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
 #######################################################################

httpie/context.py

@@ -1,4 +1,5 @@
 import sys
+import os
 from pathlib import Path
 from typing import IO, Optional
 
@@ -34,6 +35,8 @@ class Environment:
     stdout_encoding: str = None
     stderr: IO = sys.stderr
     stderr_isatty: bool = stderr.isatty()
+    devnull: IO = open(os.devnull, "w")
+    devnull_isatty: bool = devnull.isatty()
     colors = 256
     program_name: str = 'http'
     if not is_windows:
@@ -45,7 +48,7 @@ class Environment:
                 pass
     else:
         # noinspection PyUnresolvedReferences
-        import colorama.initialise
+        import colorama.initialisex
         stdout = colorama.initialise.wrap_stream(
             stdout, convert=None, strip=None,
             autoreset=True, wrap=True