Add a customizable import config file.

.gitignore

@@ -1,5 +1,11 @@
 *.pyc
-temp/
-www/
+*.egg
+*.egg-info
+.DS_Store
+__pycache__
+
+temp
+www
 .earwigbot
 rewrite.script
+toolserver/preconfig.py

build.py

@@ -9,19 +9,16 @@ import subprocess
 page_src = """#! /usr/bin/env python
 # -*- coding: utf-8  -*-
 import os
-import site
 import sys
 
 os.chdir("..")
-plat = sys.platform
-if plat.startswith("sunos"):
-    plat = "solaris"
-elif plat.startswith("linux"):
-    plat = "linux"
-site.addsitedir(os.path.expanduser("~/.local/" + plat + "/lib/python2.7/site-packages"))
-sys.path.insert(0, os.path.expanduser("~/.local/" + plat + "/lib/python2.7/site-packages"))
 sys.path.insert(0, ".")
 
+try:
+    from toolserver import preconfig
+except ImportError:
+    pass
+
 from mako.template import Template
 from mako.lookup import TemplateLookup
 

toolserver/preconfig.py.ts

@@ -0,0 +1,32 @@
+# -*- coding: utf-8  -*-
+
+"""
+This module contains installation-specific import configuration for the
+Toolserver. To add your own, create and put code in the file 'preconfig.py' in
+this directory, or rename this file to 'preconfig.py' if you want to use this
+specific configuration.
+"""
+
+import os
+import site
+import sys
+
+# Add a local platform-specific site package directory:
+
+plat = sys.platform
+if plat.startswith("sunos"):
+    plat = "solaris"
+elif plat.startswith("linux"):
+    plat = "linux"
+
+site.addsitedir(os.path.expanduser("~/.local/" + plat + "/lib/python2.7/site-packages"))
+sys.path.insert(0, os.path.expanduser("~/.local/" + plat + "/lib/python2.7/site-packages"))
+
+# EarwigBot, in-between releases, tries to import the 'git' module and add the
+# current git commit ID to its __version__ string. This behavior is useful, but
+# the Toolserver can be slow at importing things. Insert a fake 'git' module
+# into sys.modules so it skips the __version__ addition:
+
+from types import ModuleType
+git = ModuleType("git")
+sys.modules["git"] = git