Added --default-scheme <URL_SCHEME>

Closes #289

CHANGELOG.rst

@@ -14,6 +14,7 @@ This project adheres to `Semantic Versioning <http://semver.org/>`_.
   for macOS users (starting with HTTPie 0.9.4.).
 * Added the ability to unset a request header with ``Header:``, and send an
   empty value with ``Header;``.
+* Added ``--default-scheme <URL_SCHEME>``.
 
 
 `0.9.4`_ (2016-07-01)

README.rst

@@ -313,6 +313,13 @@ this command:
 
     GET /?search=HTTPie+logo&tbm=isch HTTP/1.1
 
+You can use the ``--default-scheme <URL_SCHEME>`` option to create
+shortcuts for other protocols than HTTP:
+
+.. code-block:: bash
+
+    $ alias https="http --default-scheme https"
+
 
 =============
 Request Items

httpie/cli.py

@@ -614,7 +614,6 @@ troubleshooting.add_argument(
 )
 troubleshooting.add_argument(
     '--default-scheme',
-    choices=["http", "https"],
     default="http",
     help="""
     Default scheme to use if not specified in the URL.

httpie/input.py

@@ -28,8 +28,6 @@ URL_SCHEME_RE = re.compile(r'^[a-z][a-z0-9.+-]*://', re.IGNORECASE)
 
 HTTP_POST = 'POST'
 HTTP_GET = 'GET'
-HTTP = 'http://'
-HTTPS = 'https://'
 
 
 # Various separators used in args

tests/test_cli.py

@@ -330,8 +330,18 @@ class TestIgnoreStdin:
 
 class TestSchemes:
 
-    def test_custom_scheme(self):
+    def test_invalid_custom_scheme(self):
         # InvalidSchema is expected because HTTPie
         # shouldn't touch a formally valid scheme.
         with pytest.raises(InvalidSchema):
             http('foo+bar-BAZ.123://bah')
+
+    def test_invalid_scheme_via_via_default_scheme(self):
+        # InvalidSchema is expected because HTTPie
+        # shouldn't touch a formally valid scheme.
+        with pytest.raises(InvalidSchema):
+            http('bah', '--default=scheme=foo+bar-BAZ.123')
+
+    def test_default_scheme(self, httpbin_secure):
+        url = '{0}:{1}'.format(httpbin_secure.host, httpbin_secure.port)
+        assert HTTP_OK in http(url, '--default-scheme=https')