Add scripting to libmu_py.

* python/libmu_py/script.c: New file.

@@ -156,6 +156,7 @@ extern PyFolder * PyFolder_NEW ();
 extern PyHeader * PyHeader_NEW ();
 extern PyMailcap * PyMailcap_NEW ();
 extern PyMailcapEntry * PyMailcapEntry_NEW ();
+extern PyMailbox * PyMailbox_NEW ();
 extern PyMailer * PyMailer_NEW ();
 extern PyMessage * PyMessage_NEW ();
 extern PyMime * PyMime_NEW ();
@@ -170,6 +171,26 @@ extern int PyAuthData_Check (PyObject *x);
 extern int PyMessage_Check (PyObject *x);
 extern int PyStream_Check (PyObject *x);
 
+typedef struct {
+  char *name;
+  PyObject *obj;
+} mu_py_dict;
+
+typedef struct {
+  char *module_name;
+  mu_py_dict *attrs;
+} mu_py_script_data;
+
+extern void mu_py_script_init (int argc, char *argv[]);
+extern void mu_py_script_finish (void);
+extern int  mu_py_script_run (const char *filename,
+			      mu_py_script_data *data);
+
+extern int  mu_py_script_process_mailbox (int argc, char *argv[],
+					  const char *python_filename,
+					  const char *module_name,
+					  mu_mailbox_t mbox);
+
 #ifdef __cplusplus
 }
 #endif

@@ -41,6 +41,7 @@ libmu_py_la_SOURCES = \
  mailcap.c \
  message.c \
  mime.c \
+ script.c \
  stream.c \
  registrar.c \
  url.c \

@@ -73,6 +73,12 @@ static PyTypeObject PyMailboxType = {
   0,                         /* tp_new */
 };
 
+PyMailbox *
+PyMailbox_NEW ()
+{
+  return (PyMailbox *)PyObject_NEW (PyMailbox, &PyMailboxType);
+}
+
 static PyObject *
 api_mailbox_create (PyObject *self, PyObject *args)
 {

+/*
+   GNU Mailutils -- a suite of utilities for electronic mail
+   Copyright (C) 2009 Free Software Foundation, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General
+   Public License along with this library; if not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301 USA
+*/
+
+#include "libmu_py.h"
+
+void
+mu_py_script_init (int argc, char *argv[])
+{
+  if (!Py_IsInitialized ())
+    Py_Initialize ();
+  PySys_SetArgv (argc, argv);
+}
+
+void
+mu_py_script_finish (void)
+{
+  Py_Finalize ();
+}
+
+static PyMethodDef nomethods[] = {
+  { NULL, NULL }
+};
+
+int
+mu_py_script_run (const char *python_filename, mu_py_script_data *data)
+{
+  FILE *fp;
+  PyObject *py_module;
+
+  if (!python_filename)
+    return MU_ERR_OUT_PTR_NULL;
+
+  fp = fopen (python_filename, "r");
+  if (!fp)
+    return errno;
+
+  py_module = Py_InitModule (data->module_name, nomethods);
+  if (!py_module)
+    return MU_ERR_FAILURE;
+
+  for (; data->attrs->name; data->attrs++)
+    PyObject_SetAttrString (py_module, data->attrs->name, data->attrs->obj);
+
+  if (PyRun_SimpleFile (fp, python_filename))
+    return MU_ERR_FAILURE;
+
+  fclose (fp);
+  return 0;
+}
+
+int
+mu_py_script_process_mailbox (int argc, char *argv[],
+			      const char *python_filename,
+			      const char *module_name,
+			      mu_mailbox_t mbox)
+{
+  int status;
+  PyMailbox *py_mbox;
+  mu_py_dict dict[2];
+  mu_py_script_data data[1];
+
+  mu_py_script_init (argc, argv);
+
+  py_mbox = PyMailbox_NEW ();
+  py_mbox->mbox = mbox;
+  Py_INCREF (py_mbox);
+
+  dict[0].name = "mailbox";
+  dict[0].obj  = (PyObject *)py_mbox;
+  dict[1].name = NULL;
+
+  data[0].module_name = module_name;
+  data[0].attrs = dict;
+
+  status = mu_py_script_run (python_filename, data);
+  mu_py_script_finish ();
+  return status;
+}

@@ -161,14 +161,20 @@ class MailboxBase:
 
 
 class Mailbox (MailboxBase):
+    __owner = False
     def __init__ (self, name):
-        self.mbox = mailbox.MailboxType ()
-        status = mailbox.create (self.mbox, name)
-        if status:
-            raise MailboxError (status)
+        if isinstance (name, mailbox.MailboxType):
+            self.mbox = name
+        else:
+            self.mbox = mailbox.MailboxType ()
+            self.__owner = True
+            status = mailbox.create (self.mbox, name)
+            if status:
+                raise MailboxError (status)
 
     def __del__ (self):
-        mailbox.destroy (self.mbox)
+        if self.__owner:
+            mailbox.destroy (self.mbox)
         del self.mbox
 
 class MailboxDefault (MailboxBase):