Added --unsorted

It acts as a shortcut for --format-options=json.sort_keys:false,headers.sort:false

#128

httpie/cli/argparser.py

@@ -9,9 +9,14 @@ from urllib.parse import urlsplit
 
 from requests.utils import get_netrc_auth
 
-from httpie.cli.argtypes import AuthCredentials, KeyValueArgType, parse_auth
+from httpie.cli.argtypes import (
+    AuthCredentials, KeyValueArgType, PARSED_DEFAULT_FORMAT_OPTIONS,
+    parse_auth,
+    parse_format_options,
+)
 from httpie.cli.constants import (
-    HTTP_GET, HTTP_POST, OUTPUT_OPTIONS, OUTPUT_OPTIONS_DEFAULT,
+    DEFAULT_FORMAT_OPTIONS, HTTP_GET, HTTP_POST, OUTPUT_OPTIONS,
+    OUTPUT_OPTIONS_DEFAULT,
     OUTPUT_OPTIONS_DEFAULT_STDOUT_REDIRECTED, OUT_RESP_BODY, PRETTY_MAP,
     PRETTY_STDOUT_TTY_ONLY, SEPARATOR_CREDENTIALS, SEPARATOR_GROUP_ALL_ITEMS,
     SEPARATOR_GROUP_DATA_ITEMS, URL_SCHEME_RE,
@@ -44,6 +49,8 @@ class HTTPieHelpFormatter(RawDescriptionHelpFormatter):
         return text.splitlines()
 
 
+# TODO: refactor and design type-annotated data structures
+#       for raw args + parsed args and keep things immutable.
 class HTTPieArgumentParser(argparse.ArgumentParser):
     """Adds additional logic to `argparse.ArgumentParser`.
 
@@ -84,6 +91,7 @@ class HTTPieArgumentParser(argparse.ArgumentParser):
         self._setup_standard_streams()
         self._process_output_options()
         self._process_pretty_options()
+        self._process_format_options()
         self._guess_method()
         self._parse_items()
 
@@ -405,3 +413,9 @@ class HTTPieArgumentParser(argparse.ArgumentParser):
         if self.args.download_resume and not (
                 self.args.download and self.args.output_file):
             self.error('--continue requires --output to be specified')
+
+    def _process_format_options(self):
+        parsed_options = PARSED_DEFAULT_FORMAT_OPTIONS
+        for options_group in self.args.format_options:
+            parsed_options = parse_format_options(options_group, defaults=parsed_options)
+        self.args.format_options = parsed_options

httpie/cli/argtypes.py

@@ -242,3 +242,9 @@ PARSED_DEFAULT_FORMAT_OPTIONS = parse_format_options(
     s=','.join(DEFAULT_FORMAT_OPTIONS),
     defaults=None,
 )
+
+
+class UnsortedAction(argparse.Action):
+
+    def __call__(self, *args, **kwargs):
+        return 1

httpie/cli/constants.py

@@ -91,7 +91,10 @@ DEFAULT_FORMAT_OPTIONS = [
     'json.indent:4',
     'json.sort_keys:true',
 ]
-
+UNSORTED_FORMAT_OPTIONS = [
+    'headers.sort:false',
+    'json.sort_keys:false',
+]
 
 # Defaults
 OUTPUT_OPTIONS_DEFAULT = OUT_RESP_HEAD + OUT_RESP_BODY

httpie/cli/definition.py

@@ -9,14 +9,13 @@ from httpie import __doc__, __version__
 from httpie.cli.argparser import HTTPieArgumentParser
 from httpie.cli.argtypes import (
     KeyValueArgType, PARSED_DEFAULT_FORMAT_OPTIONS, SessionNameValidator,
-    parse_format_options,
     readable_file_arg,
 )
 from httpie.cli.constants import (
     DEFAULT_FORMAT_OPTIONS, OUTPUT_OPTIONS,
     OUTPUT_OPTIONS_DEFAULT, OUT_REQ_BODY, OUT_REQ_HEAD,
     OUT_RESP_BODY, OUT_RESP_HEAD, PRETTY_MAP, PRETTY_STDOUT_TTY_ONLY,
-    SEPARATOR_GROUP_ALL_ITEMS, SEPARATOR_PROXY,
+    SEPARATOR_GROUP_ALL_ITEMS, SEPARATOR_PROXY, UNSORTED_FORMAT_OPTIONS,
 )
 from httpie.output.formatters.colors import (
     AUTO_STYLE, AVAILABLE_STYLES, DEFAULT_STYLE,
@@ -229,14 +228,22 @@ output_processing.add_argument(
         auto_style=AUTO_STYLE,
     )
 )
+output_processing.add_argument(
+    '--unsorted',
+    action='append_const',
+    const=','.join(UNSORTED_FORMAT_OPTIONS),
+    dest='format_options',
+    help="""
+    Disables all sorting while formatting output. It is a shortcut for:
 
+        --format-options=json.sort_keys:false,headers.sort:false
+
+    """
+)
 output_processing.add_argument(
     '--format-options',
-    type=lambda s: parse_format_options(
-        s=s,
-        defaults=PARSED_DEFAULT_FORMAT_OPTIONS
-    ),
-    default=PARSED_DEFAULT_FORMAT_OPTIONS,
+    default=[],
+    action='append',
     help="""
     Controls output formatting. Only relevant when formatting is enabled
     through (explicit or implied) --pretty=all or --pretty=format.
@@ -244,10 +251,11 @@ output_processing.add_argument(
 
         {option_list}
 
-    You can specify multiple comma-separated options. For example, this modifies
-    the settings to disable the sorting of JSON keys and headers:
+    You may use this option multiple times, as well as specify multiple
+    comma-separated options at the same time. For example, this modifies the
+    settings to disable the sorting of JSON keys, and sets the indent size to 2:
 
-        --format-options json.sort_keys:false,headers.sort:false
+        --format-options json.sort_keys:false,json.indent:2
 
     This is something you will typically put into your config file.