[evolution-data-server/sqlite-refactor: 2/8] Add --no-migration option to evolution-source-registry

[Tristan Van Berkom <tvb src gnome org>]

commit 8da4a0600daff4bafcac9028cafdbaef118a3b4f
Author: Tristan Van Berkom <tristanvb openismus com>
Date:   Wed Nov 20 15:08:54 2013 +0900

    Add --no-migration option to evolution-source-registry
    
    This allows one to run the EDS processes in relocated XDG user data
    directories, without the registry stealing your user data from ~/.evolution
    or previous versions.

 .../evolution-source-registry.c                    |   37 ++++++++++++++++----
 1 files changed, 30 insertions(+), 7 deletions(-)
---
diff --git a/services/evolution-source-registry/evolution-source-registry.c 
b/services/evolution-source-registry/evolution-source-registry.c
index 6aeced4..7fcb4fe 100644
--- a/services/evolution-source-registry/evolution-source-registry.c
+++ b/services/evolution-source-registry/evolution-source-registry.c
@@ -32,6 +32,14 @@
 #define RESOURCE_PATH_RO_SOURCES "/org/gnome/evolution-data-server/ro-sources"
 #define RESOURCE_PATH_RW_SOURCES "/org/gnome/evolution-data-server/rw-sources"
 
+static gboolean opt_no_migration = FALSE;
+
+static GOptionEntry entries[] = {
+       { "no-migration", 'n', 0, G_OPTION_ARG_NONE, &opt_no_migration,
+         N_("Don't migrate user data from previous versions of Evolution"), NULL },
+       { NULL }
+};
+
 /* Forward Declarations */
 void evolution_source_registry_migrate_basedir (void);
 void evolution_source_registry_migrate_sources (void);
@@ -103,7 +111,8 @@ evolution_source_registry_load_all (ESourceRegistryServer *server,
                return FALSE;
 
        /* Migrate proxy settings from Evolution. */
-       evolution_source_registry_migrate_proxies (server);
+       if (!opt_no_migration)
+               evolution_source_registry_migrate_proxies (server);
 
        /* Signal that all files are now loaded.  One thing this
         * does is tell the cache-reaper module to start scanning
@@ -117,6 +126,7 @@ gint
 main (gint argc,
       gchar **argv)
 {
+       GOptionContext *context;
        EDBusServer *server;
        EDBusServerExitCode exit_code;
        GError *error = NULL;
@@ -125,6 +135,16 @@ main (gint argc,
        bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
        bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
 
+       context = g_option_context_new (NULL);
+       g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
+       g_option_context_parse (context, &argc, &argv, &error);
+       g_option_context_free (context);
+
+       if (error != NULL) {
+               g_printerr ("%s\n", error->message);
+               exit (EXIT_FAILURE);
+       }
+
 #if defined (ENABLE_MAINTAINER_MODE) && defined (HAVE_GTK)
        if (g_getenv ("EDS_TESTING") == NULL)
                /* This is only to load gtk-modules, like
@@ -136,12 +156,14 @@ main (gint argc,
 
 reload:
        /* Migrate user data from ~/.evolution to XDG base directories. */
-       evolution_source_registry_migrate_basedir ();
+       if (!opt_no_migration)
+               evolution_source_registry_migrate_basedir ();
 
        /* Migrate ESource data from GConf XML blobs to key files.
         * Do this AFTER XDG base directory migration since the key
         * files are saved according to XDG base directory settings. */
-       evolution_source_registry_migrate_sources ();
+       if (!opt_no_migration)
+               evolution_source_registry_migrate_sources ();
 
        server = e_source_registry_server_new ();
 
@@ -151,10 +173,11 @@ reload:
                NULL);
 
        /* Convert "imap" mail accounts to "imapx". */
-       g_signal_connect (
-               server, "tweak-key-file", G_CALLBACK (
-               evolution_source_registry_migrate_imap_to_imapx),
-               NULL);
+       if (!opt_no_migration)
+               g_signal_connect (
+                       server, "tweak-key-file", G_CALLBACK (
+                       evolution_source_registry_migrate_imap_to_imapx),
+                       NULL);
 
        /* Failure here is fatal.  Don't even try to keep going. */
        evolution_source_registry_load_all (