make sure the -c option can be used over bootstrap (passed to buildout.main)

bootstrap/bootstrap.py

@@ -35,8 +35,16 @@ parser.add_option("-d", "--distribute",
                    action="store_true", dest="distribute", default=False,
                    help="Use Disribute rather than Setuptools.")
 
+parser.add_option("-c", None, action="store", dest="config_file",
+                   help=("Specify the path to the buildout configuration "
+                         "file to be used."))
+
 options, args = parser.parse_args()
 
+# if -c was provided, we push it back into args for buildout' main function
+if options.config_file is not None:
+    args += ['-c', options.config_file]
+
 if options.version is not None:
     VERSION = '==%s' % options.version
 else:

src/zc/buildout/bootstrap.txt

@@ -178,3 +178,20 @@ Let's make sure the generated `buildout` script uses ``Distribute`` *and* ``zc.b
         zc.buildout.buildout.main()
     <BLANKLINE>
 
+Last, the -c option needs to work on bootstrap.py::
+
+    >>> conf_file = os.path.join(sample_buildout, 'other.cfg')
+    >>> f = open(conf_file, 'w')
+    >>> f.write('[buildout]\nparts=\n\n')
+    >>> f.close()
+    >>> print 'X'; print system(
+    ...     zc.buildout.easy_install._safe_arg(sys.executable)+' '+
+    ...     'bootstrap.py -c %s --distribute' % conf_file); print 'X' # doctest: +ELLIPSIS
+    ...
+    X
+    ...
+    Generated script '/sample/bin/buildout'.
+    <BLANKLINE>
+    X
+
+