1 files changed, 43 insertions, 0 deletions
diff --git a/setuptools.txt b/setuptools.txt
index 43e0e610..26874c88 100755
--- a/setuptools.txt
+++ b/setuptools.txt
@@ -498,6 +498,43 @@ on "entry points" in general, see the section below on `Dynamic Discovery of
 Services and Plugins`_.
 
 
+"Eggsecutable" Scripts
+----------------------
+
+Occasionally, there are situations where it's desirable to make an ``.egg``
+file directly executable.  You can do this by including an entry point such
+as the following::
+
+    setup(
+        # other arguments here...
+        entry_points = {
+            'setuptools.installation': [
+                'eggsecutable = my_package.some_module:main_func',
+            ]
+        }
+    )
+
+Any eggs built from the above setup script will include a short excecutable
+prelude that imports and calls ``main_func()`` from ``my_package.some_module``.
+The prelude can be run on Unix-like platforms (including Mac and Linux) by
+invoking the egg with ``/bin/sh``, or by enabling execute permissions on the
+``.egg`` file.  For the executable prelude to run, the appropriate version of
+Python must be available via the ``PATH`` environment variable, under its
+"long" name.  That is, if the egg is built for Python 2.3, there must be a
+``python2.3`` executable present in a directory on ``PATH``.
+
+This feature is primarily intended to support bootstrapping the installation of
+setuptools itself on non-Windows platforms, but may also be useful for other
+projects as well.
+
+IMPORTANT NOTE: Eggs with an "eggsecutable" header cannot be renamed, or
+invoked via symlinks.  They *must* be invoked using their original filename, in
+order to ensure that, once running, ``pkg_resources`` will know what project
+and version is in use.  The header script will check this and exit with an
+error if the ``.egg`` file has been renamed or is invoked via a symlink that
+changes its base name.
+
+
 Declaring Dependencies
 ======================
 
@@ -2567,6 +2604,12 @@ Release Notes/Change History
  * Fix ``upload`` command not uploading files built by ``bdist_rpm`` or
    ``bdist_wininst`` under Python 2.3 and 2.4.
 
+ * Add support for "eggsecutable" headers: a ``#!/bin/sh`` script that is
+   prepended to an ``.egg`` file to allow it to be run as a script on Unix-ish
+   platforms.  (This is mainly so that setuptools itself can have a single-file
+   installer on Unix, without doing multiple downloads, dealing with firewalls,
+   etc.)
+
 0.6c3
  * Fixed breakages caused by Subversion 1.4's new "working copy" format