Drop support for migrating from Evolution < 2.0.

There's too much ancient, crufty code there that we can't realistically
support anymore.  A workaround for those poor users still on 1.x is to
upgrade to some 2.x release first, then upgrade again to 3.x.  An error
dialog explaining this will be shown at startup.

1 files changed, 25 insertions, 169 deletions

diff --git a/shell/e-shell-migrate.c b/shell/e-shell-migrate.c
index dd5ad07b24..d26c9a83d1 100644
--- a/shell/e-shell-migrate.c
+++ b/shell/e-shell-migrate.c
@@ -27,7 +27,6 @@
 #include <glib/gstdio.h>
 #include <libedataserver/e-xml-utils.h>
 
-#include "e-util/e-bconf-map.h"
 #include "e-util/e-alert-dialog.h"
 #include "e-util/e-file-utils.h"
 #include "e-util/e-util.h"
@@ -37,29 +36,36 @@
 #define GCONF_VERSION_KEY	"/apps/evolution/version"
 #define GCONF_LAST_VERSION_KEY	"/apps/evolution/last_version"
 
-static const gchar *
-shell_migrate_get_old_data_dir (void)
-{
-	static gchar *old_data_dir = NULL;
-
-	if (G_UNLIKELY (old_data_dir == NULL))
-		old_data_dir = g_build_filename (
-			g_get_home_dir (), "evolution", NULL);
-
-	return old_data_dir;
-}
-
 static gboolean
 shell_migrate_attempt (EShell *shell,
                        gint major,
                        gint minor,
                        gint micro)
 {
+	GtkWindow *parent;
 	GList *backends;
 	gboolean success = TRUE;
 
+	parent = e_shell_get_active_window (shell);
 	backends = e_shell_get_shell_backends (shell);
 
+	/* We only support migrating from version 2 now. */
+	if (major < 2) {
+		gchar *version;
+		gint response;
+
+		version = g_strdup_printf ("%d.%d", major, minor);
+		response = e_alert_run_dialog_for_args (
+			parent, "shell:upgrade-version-too-old",
+			version, NULL);
+		g_free (version);
+
+		return (response == GTK_RESPONSE_OK);
+	}
+
+	/* Ask each of the shell backends to migrate their own data.
+	 * XXX If something fails the user may end up with only partially
+	 *     migrated data.  Need transaction semantics here, but how? */
 	while (success && backends != NULL) {
 		EShellBackend *shell_backend = backends->data;
 		GError *error = NULL;
@@ -71,11 +77,10 @@ shell_migrate_attempt (EShell *shell,
 			gint response;
 
 			response = e_alert_run_dialog_for_args (
-				e_shell_get_active_window (shell), "shell:upgrade-failed",
+				parent, "shell:upgrade-failed",
 				error->message, NULL);
 
-			if (response == GTK_RESPONSE_CANCEL)
-				success = FALSE;
+			success = (response == GTK_RESPONSE_OK);
 
 			g_error_free (error);
 		}
@@ -94,11 +99,8 @@ shell_migrate_get_version (EShell *shell,
 {
 	GConfClient *client;
 	const gchar *key;
-	const gchar *old_data_dir;
 	gchar *string;
 
-	old_data_dir = shell_migrate_get_old_data_dir ();
-
 	key = GCONF_VERSION_KEY;
 	client = e_shell_get_gconf_client (shell);
 	string = gconf_client_get_string (client, key, NULL);
@@ -108,90 +110,12 @@ shell_migrate_get_version (EShell *shell,
 		sscanf (string, "%d.%d.%d", major, minor, micro);
 		g_free (string);
 
-	} else if (!g_file_test (old_data_dir, G_FILE_TEST_IS_DIR)) {
-		/* If the old data directory does not exist,
-		 * it must be a new installation. */
+	} else {
+		/* Otherwise, assume it's a new installation. */
 		*major = 0;
 		*minor = 0;
 		*micro = 0;
-
-	} else {
-		xmlDocPtr doc;
-		xmlNodePtr source;
-		gchar *filename;
-
-		filename = g_build_filename (
-			old_data_dir, "config.xmldb", NULL);
-		doc = e_xml_parse_file (filename);
-		g_free (filename);
-
-		if (doc == NULL)
-			return;
-
-		source = e_bconf_get_path (doc, "/Shell");
-		if (source != NULL) {
-			key = "upgrade_from_1_0_to_1_2_performed";
-			string = e_bconf_get_value (source, key);
-		}
-
-		if (string != NULL && *string == '1') {
-			*major = 1;
-			*minor = 2;
-			*micro = 0;
-		} else {
-			*major = 1;
-			*minor = 0;
-			*micro = 0;
-		}
-
-		g_free (string);
-
-		if (doc != NULL)
-			xmlFreeDoc (doc);
-	}
-}
-
-static gint
-shell_migrate_remove_dir (const gchar *root,
-                          const gchar *path)
-{
-	GDir *dir;
-	const gchar *basename;
-	gchar *filename = NULL;
-	gint result = -1;
-
-	/* Recursively removes a directory and its contents. */
-
-	dir = g_dir_open (path, 0, NULL);
-	if (dir == NULL)
-		return -1;
-
-	while ((basename = g_dir_read_name (dir)) != NULL) {
-		filename = g_build_filename (path, basename, NULL);
-
-		/* Make sure we haven't strayed from the evolution dir. */
-		g_return_val_if_fail (strlen (path) >= strlen (root), -1);
-		g_return_val_if_fail (g_str_has_prefix (path, root), -1);
-
-		if (g_file_test (filename, G_FILE_TEST_IS_DIR)) {
-			if (shell_migrate_remove_dir (root, filename) < 0)
-				goto fail;
-		} else {
-			if (g_unlink (filename) < 0)
-				goto fail;
-		}
-
-		g_free (filename);
-		filename = NULL;
 	}
-
-	result = g_rmdir (path);
-
-fail:
-	g_free (filename);
-	g_dir_close (dir);
-
-	return result;
 }
 
 static void
@@ -241,7 +165,6 @@ e_shell_migrate_attempt (EShell *shell)
 	ESEvent *ese;
 	GConfClient *client;
 	const gchar *key;
-	const gchar *old_data_dir;
 	gint major, minor, micro;
 	gint last_major, last_minor, last_micro;
 	gint curr_major, curr_minor, curr_micro;
@@ -251,7 +174,6 @@ e_shell_migrate_attempt (EShell *shell)
 	g_return_val_if_fail (E_IS_SHELL (shell), FALSE);
 
 	client = e_shell_get_gconf_client (shell);
-	old_data_dir = shell_migrate_get_old_data_dir ();
 
 	if (sscanf (BASE_VERSION, "%d.%d", &curr_major, &curr_minor) != 2) {
 		g_warning ("Could not parse BASE_VERSION (%s)", BASE_VERSION);
@@ -271,38 +193,12 @@ e_shell_migrate_attempt (EShell *shell)
 		(curr_major == major && curr_minor == minor && curr_micro > micro)))
 		goto check_old;
 
-	/* If upgrading from < 1.5, we need to copy most data from
-	 * ~/evolution to ~/.evolution.  Make sure we have the disk
-	 * space for it before proceeding. */
-	if (major == 1 && minor < 5) {
-		glong avail;
-		glong usage;
-
-		usage = e_fsutils_usage (old_data_dir);
-		avail = e_fsutils_avail (g_get_home_dir ());
-		if (usage >= 0 && avail >= 0 && avail < usage) {
-			gchar *need;
-			gchar *have;
-
-			need = g_strdup_printf (_("%ld KB"), usage);
-			have = g_strdup_printf (_("%ld KB"), avail);
-
-			e_alert_run_dialog_for_args (
-				e_shell_get_active_window (shell), "shell:upgrade-nospace",
-				need, have, NULL);
-
-			g_free (need);
-			g_free (have);
-
-			_exit (EXIT_SUCCESS);
-		}
-	}
-
 	if (!shell_migrate_attempt (shell, major, minor, micro))
 		_exit (EXIT_SUCCESS);
 
 	/* Record a successful migration. */
-	string = g_strdup_printf ("%d.%d.%d", curr_major, curr_minor, curr_micro);
+	string = g_strdup_printf (
+		"%d.%d.%d", curr_major, curr_minor, curr_micro);
 	gconf_client_set_string (client, GCONF_VERSION_KEY, string, NULL);
 	g_free (string);
 
@@ -322,46 +218,6 @@ check_old:
 	}
 	g_free (string);
 
-	/* If the last migrated version was old, check for stuff to remove. */
-	if (last_major == 1 && last_minor < 5 &&
-		g_file_test (old_data_dir, G_FILE_TEST_IS_DIR)) {
-
-		gint response;
-
-		string = g_strdup_printf (
-			"%d.%d.%d", last_major, last_minor, last_micro);
-		response = e_alert_run_dialog_for_args (
-			e_shell_get_active_window (shell), "shell:upgrade-remove-1-4", string, NULL);
-		g_free (string);
-
-		switch (response) {
-			case GTK_RESPONSE_OK:  /* delete */
-				response = e_alert_run_dialog_for_args (
-					e_shell_get_active_window (shell),
-					"shell:upgrade-remove-1-4-confirm",
-					NULL);
-				if (response == GTK_RESPONSE_OK)
-					shell_migrate_remove_dir (
-						old_data_dir, old_data_dir);
-				else
-					break;
-				/* fall through */
-
-			case GTK_RESPONSE_ACCEPT:  /* keep */
-				last_major = curr_major;
-				last_minor = curr_minor;
-				last_micro = curr_micro;
-				break;
-
-			default:
-				break;
-		}
-	} else {
-		last_major = curr_major;
-		last_minor = curr_minor;
-		last_micro = curr_micro;
-	}
-
 	string = g_strdup_printf (
 		"%d.%d.%d", last_major, last_minor, last_micro);
 	gconf_client_set_string (client, key, string, NULL);