Another attempt at a fix that uses setopt instead of hacking easy_install

--HG--
branch : distribute
extra : rebase_source : 907488d2ba609dbca39cd14c021c5cfb4f353a38

setuptools/command/easy_install.py

@@ -271,8 +271,7 @@ class easy_install(Command):
                     )
                 else:
                     self.all_site_dirs.append(normalize_path(d))
-        if not self.editable and self.args != ['-']:
-            self.check_site_dir()
+        if not self.editable: self.check_site_dir()
         self.index_url = self.index_url or "http://pypi.python.org/simple"
         self.shadow_path = self.all_site_dirs[:]
         for path_item in self.install_dir, normalize_path(self.script_dir):
@@ -343,11 +342,6 @@ class easy_install(Command):
                             'install_scripts', 'install_data',])
 
     def run(self):
-        if self.args == ['-']:
-            # A single dash as an argument means 'do nothing' and is just a way
-            # to pass arguments to the easy_install command without running it
-            return
-
         if self.verbose != self.distribution.verbose:
             log.set_verbosity(self.verbose)
         try:
@@ -1102,10 +1096,14 @@ See the setuptools documentation for the "develop" command for more info.
                 if key not in keep:
                     del ei_opts[key]
             if ei_opts:
-                args.append('easy_install')
                 for key, val in ei_opts.iteritems():
-                    args.append('--%s=%s' % (key.replace('_', '-'), val[1]))
-                args.append('-')
+                    args.append('setopt')
+                    args.append('--command')
+                    args.append('easy_install')
+                    args.append('--option')
+                    args.append(key.replace('_', '-'))
+                    args.append('--set-value')
+                    args.append(val[1])
 
             self.run_setup(setup_script, setup_base, args)
             all_eggs = Environment([dist_dir])