deprecate --no-install and --no-download

Author: qwcode

CHANGES.txt

@@ -17,6 +17,10 @@ Changelog
 * **BACKWARD INCOMPATIBLE** pip no longer respects dependency links by default.
   Users may opt into respecting them again using ``--process-dependency-links``.
 
+* **DEPRECATION** ``pip install --no-install`` and ``pip install
+  --no-download`` are now formally deprecated.  See Issue #906 for discussion on
+  possible alternatives, or lack thereof, in future releases.
+
 * pip will now install Mac OSX platform wheels from PyPI. (Pull #1278)
 
 * pip now generates the appropriate platform-specific console scripts when

pip/commands/install.py

@@ -105,13 +105,13 @@ def __init__(self, *args, **kw):
             '--no-install',
             dest='no_install',
             action='store_true',
-            help="Download and unpack all packages, but don't actually install them.")
+            help="DEPRECATED. Download and unpack all packages, but don't actually install them.")
 
         cmd_opts.add_option(
             '--no-download',
             dest='no_download',
             action="store_true",
-            help="Don't download any packages, just install the ones already downloaded "
+            help="DEPRECATED. Don't download any packages, just install the ones already downloaded "
             "(completes an install run with --no-install).")
 
         cmd_opts.add_option(cmdoptions.install_options.make())