Instances are now opened by a special function...

...that generates a unique module name for the instances on import
time.

Author: Richard Jones

cgi-bin/roundup.cgi

@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# $Id: roundup.cgi,v 1.7 2001-08-03 01:28:33 richard Exp $
+# $Id: roundup.cgi,v 1.8 2001-08-05 07:43:52 richard Exp $
 
 # python version check
 import sys
@@ -86,13 +86,14 @@ def main(instance, out):
 out, err = sys.stdout, sys.stderr
 try:
     sys.stdout = sys.stderr = LOG
-    import os, string, imp
+    import os, string
+    import roundup.instance
     path = string.split(os.environ['PATH_INFO'], '/')
     instance = path[1]
     os.environ['PATH_INFO'] = string.join(path[2:], '/')
     if ROUNDUP_INSTANCE_HOMES.has_key(instance):
         instance_home = ROUNDUP_INSTANCE_HOMES[instance]
-        instance = imp.load_package('instance', instance_home)
+        instance = roundup.instance.open(instance_home)
     else:
         raise ValueError, 'No such instance "%s"'%instance
     main(instance, out)
@@ -105,6 +106,9 @@ sys.stdout, sys.stderr = out, err
 
 #
 # $Log: not supported by cvs2svn $
+# Revision 1.7  2001/08/03 01:28:33  richard
+# Used the much nicer load_package, pointed out by Steve Majewski.
+#
 # Revision 1.6  2001/08/03 00:59:34  richard
 # Instance import now imports the instance using imp.load_module so that
 # we can have instance homes of "roundup" or other existing python package

roundup-admin

@@ -1,13 +1,14 @@
 #! /usr/bin/python
-# $Id: roundup-admin,v 1.12 2001-08-03 01:28:33 richard Exp $
+# $Id: roundup-admin,v 1.13 2001-08-05 07:44:13 richard Exp $
 
 import sys
 if int(sys.version[0]) < 2:
     print 'Roundup requires python 2.0 or later.'
     sys.exit(1)
 
-import string, os, getpass, getopt, re, imp
+import string, os, getpass, getopt, re
 from roundup import date, roundupdb, init
+import roundup.instance
 
 def usage(message=''):
     if message: message = 'Problem: '+message+'\n'
@@ -381,7 +382,7 @@ def main():
             password = getpass.getpass('  password: ')
 
     # get the instance
-    instance = imp.load_package('instance', instance_home)
+    instance = roundup.instance.open(instance_home)
 
     function = figureCommands().get(command, None)
 
@@ -404,6 +405,9 @@ if __name__ == '__main__':
 
 #
 # $Log: not supported by cvs2svn $
+# Revision 1.12  2001/08/03 01:28:33  richard
+# Used the much nicer load_package, pointed out by Steve Majewski.
+#
 # Revision 1.11  2001/08/03 00:59:34  richard
 # Instance import now imports the instance using imp.load_module so that
 # we can have instance homes of "roundup" or other existing python package

roundup-mailgw

@@ -1,5 +1,5 @@
 #! /usr/bin/python
-# $Id: roundup-mailgw,v 1.4 2001-08-03 01:28:33 richard Exp $
+# $Id: roundup-mailgw,v 1.5 2001-08-05 07:44:25 richard Exp $
 
 import sys
 if int(sys.version[0]) < 2:
@@ -17,8 +17,8 @@ if not instance_home:
     sys.exit(1)
 
 # get the instance
-import imp
-instance = imp.load_package('instance', instance_home)
+import roundup.instance
+instance = roundup.instance.open(instance_home)
 
 # invokde the mail handler
 db = instance.open('admin')
@@ -27,6 +27,9 @@ handler.main(sys.stdin)
 
 #
 # $Log: not supported by cvs2svn $
+# Revision 1.4  2001/08/03 01:28:33  richard
+# Used the much nicer load_package, pointed out by Steve Majewski.
+#
 # Revision 1.3  2001/08/03 00:59:34  richard
 # Instance import now imports the instance using imp.load_module so that
 # we can have instance homes of "roundup" or other existing python package

roundup-server

@@ -3,7 +3,7 @@
 
 Stolen from CGIHTTPServer
 
-$Id: roundup-server,v 1.8 2001-08-03 01:28:33 richard Exp $
+$Id: roundup-server,v 1.9 2001-08-05 07:44:36 richard Exp $
 
 """
 import sys
@@ -22,6 +22,7 @@ import SimpleHTTPServer
 
 # Roundup modules of use here
 from roundup import cgitb, cgi_client
+import roundup.instance
 
 #
 ##  Configuration
@@ -98,7 +99,7 @@ class RoundupRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
         instance = urllib.unquote(l_path[1])
         if self.ROUNDUP_INSTANCE_HOMES.has_key(instance):
             instance_home = self.ROUNDUP_INSTANCE_HOMES[instance]
-            instance = imp.load_package('instance', instance_home)
+            instance = roundup.instance.open(instance_home)
         else:
             raise ValueError, 'No such instance "%s"'%instance
 
@@ -256,6 +257,9 @@ if __name__ == '__main__':
 
 #
 # $Log: not supported by cvs2svn $
+# Revision 1.8  2001/08/03 01:28:33  richard
+# Used the much nicer load_package, pointed out by Steve Majewski.
+#
 # Revision 1.7  2001/08/03 00:59:34  richard
 # Instance import now imports the instance using imp.load_module so that
 # we can have instance homes of "roundup" or other existing python package

roundup/init.py

@@ -1,6 +1,8 @@
-# $Id: init.py,v 1.11 2001-08-04 22:42:43 richard Exp $
+# $Id: init.py,v 1.12 2001-08-05 07:43:52 richard Exp $
 
-import os, shutil, sys, errno, imp
+import os, shutil, sys, errno
+
+import roundup.instance
 
 def copytree(src, dst, symlinks=0):
     """Recursively copy a directory tree using copy2().
@@ -50,11 +52,14 @@ def init(instance_home, template, backend, adminpw):
     open(os.path.join(instance_home, 'select_db.py'), 'w').write(db)
 
     # now import the instance and call its init
-    instance = imp.load_package('instance', instance_home)
+    instance = roundup.instance.open(instance_home)
     instance.init(adminpw)
 
 #
 # $Log: not supported by cvs2svn $
+# Revision 1.11  2001/08/04 22:42:43  richard
+# Fixed sf.net bug #447671 - typo
+#
 # Revision 1.10  2001/08/03 01:28:33  richard
 # Used the much nicer load_package, pointed out by Steve Majewski.
 #

roundup/instance.py

@@ -0,0 +1,34 @@
+# $Id: instance.py,v 1.1 2001-08-05 07:43:52 richard Exp $
+
+''' Currently this module provides one function: open. This function opens
+an instance.
+'''
+
+import imp
+
+class Opener:
+    def __init__(self):
+        self.number = 0
+        self.instances = {}
+
+    def open(self, instance_home):
+        if self.instances.has_key(instance_home):
+            return imp.load_package(self.instances[instance_home],
+                instance_home)
+        self.number = self.number + 1
+        modname = '_roundup_instance_%s'%self.number
+        self.instances[instance_home] = modname
+        return imp.load_package(modname, instance_home)
+
+opener = Opener()
+open = opener.open
+
+del Opener
+del opener
+
+
+#
+# $Log: not supported by cvs2svn $
+#
+#
+# vim: set filetype=python ts=4 sw=4 et si