[evolution/eds-mailer: 3/49] Automatically migrate filter definition file on upgrade

[Jonathon Jongsma <jjongsma src gnome org>]

commit e5062544016aaac0b3ed697b138943f57b28f23f
Author: Jonathon Jongsma <jonathon quotidian org>
Date:   Mon Dec 21 15:50:12 2009 -0600

    Automatically migrate filter definition file on upgrade
    
    Because the backend will need to have more information stored in the filters.xml
    file now (it's reading the cached s-expression rather than re-building it), we
    migrate the filters file at startup so that it will contain the extra data.

 mail/e-mail-migrate.c |   28 +++++++++++++++++++++++++++-
 1 files changed, 27 insertions(+), 1 deletions(-)
---
diff --git a/mail/e-mail-migrate.c b/mail/e-mail-migrate.c
index f67ea38..3e3a064 100644
--- a/mail/e-mail-migrate.c
+++ b/mail/e-mail-migrate.c
@@ -67,8 +67,9 @@
 #include "shell/e-shell-migrate.h"
 
 #include "e-mail-store.h"
-#include "mail-config.h"
+#include "em-filter-context.h"
 #include "em-utils.h"
+#include "mail-config.h"
 
 #define d(x) x
 
@@ -2989,6 +2990,27 @@ migrate_to_db (EShellBackend *shell_backend)
 	g_object_unref (session);
 }
 
+/* Load the email filters and re-save them since there was some new cached
+ * information added to the filter file format */
+static void
+migrate_email_filters_2_29 (EShellBackend *shell_backend)
+{
+	ERuleContext *fc;
+	gchar *user, *system;
+	const gchar *data_dir = e_shell_backend_get_data_dir (shell_backend);
+
+	user = g_build_filename (data_dir, "filters.xml", NULL);
+	system = g_build_filename (EVOLUTION_PRIVDATADIR, "filtertypes.xml", NULL);
+
+	fc = (ERuleContext *) em_filter_context_new ();
+	e_rule_context_load (fc, system, user);
+	if (e_rule_context_save (fc, user) == -1)
+		g_warning ("Couldn't migrate filter rules '%s'", user);
+
+	g_free (system);
+	g_free (user);
+}
+
 gboolean
 e_mail_migrate (EShellBackend *shell_backend,
                 gint major,
@@ -3093,5 +3115,9 @@ e_mail_migrate (EShellBackend *shell_backend,
 		migrate_to_db (shell_backend);
 	}
 
+	if (major < 2 || (major == 2 && minor < 30)) {
+		migrate_email_filters_2_29 (shell_backend);
+	}
+
 	return TRUE;
 }