Beginning extraction of ScriptWriter classes for writing console and gui scripts

--HG--
extra : rebase_source : 24c34791314ba58ecb0c7dca7bd7fa02a3a84949

setuptools/command/easy_install.py

@@ -1780,24 +1780,27 @@ def fix_jython_executable(executable, options):
     return executable
 
 
+class ScriptWriter(object):
+    template = (
+        "# EASY-INSTALL-ENTRY-SCRIPT: %(spec)r,%(group)r,%(name)r\n"
+        "__requires__ = %(spec)r\n"
+        "import sys\n"
+        "from pkg_resources import load_entry_point\n"
+        "\n"
+        "if __name__ == '__main__':"
+        "\n"
+        "    sys.exit(\n"
+        "        load_entry_point(%(spec)r, %(group)r, %(name)r)()\n"
+        "    )\n"
+    )
+
 def get_script_args(dist, executable=sys_executable, wininst=False):
     """Yield write_script() argument tuples for a distribution's entrypoints"""
     spec = str(dist.as_requirement())
     header = get_script_header("", executable, wininst)
     for group in 'console_scripts', 'gui_scripts':
         for name, ep in dist.get_entry_map(group).items():
-            script_text = (
-                "# EASY-INSTALL-ENTRY-SCRIPT: %(spec)r,%(group)r,%(name)r\n"
-                "__requires__ = %(spec)r\n"
-                "import sys\n"
-                "from pkg_resources import load_entry_point\n"
-                "\n"
-                "if __name__ == '__main__':"
-                "\n"
-                "    sys.exit(\n"
-                "        load_entry_point(%(spec)r, %(group)r, %(name)r)()\n"
-                "    )\n"
-            ) % locals()
+            script_text = ScriptWriter.template % locals()
             if sys.platform=='win32' or wininst:
                 # On Windows/wininst, add a .py extension and an .exe launcher
                 if group=='gui_scripts':