Set up migrations table on initial setup

This includes the appmigrations table in the schema files, and inserts
the current database version when running writefreely --init-db

app.go

@@ -613,5 +613,15 @@ func adminInitDatabase(app *app) {
 			log.Info("Created.")
 		}
 	}
+
+	// Set up migrations table
+	log.Info("Updating appmigrations table...")
+	err = migrations.SetInitialMigrations(migrations.NewDatastore(app.db.DB, app.db.driverName))
+	if err != nil {
+		log.Error("Unable to set initial migrations: %v", err)
+		os.Exit(1)
+	}
+	log.Info("Done.")
+
 	os.Exit(0)
 }

migrations/migrations.go

@@ -58,6 +58,19 @@ var migrations = []Migration{
 	New("support user invites", supportUserInvites), // -> V1 (v0.8.0)
 }
 
+// CurrentVer returns the current migration version the application is on
+func CurrentVer() int {
+	return len(migrations)
+}
+
+func SetInitialMigrations(db *datastore) error {
+	_, err := db.Exec("INSERT INTO appmigrations (version, migrated, result) VALUES (?, "+db.now()+", ?)", CurrentVer(), "")
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 func Migrate(db *datastore) error {
 	var version int
 	var err error

schema.sql

@@ -34,6 +34,18 @@ CREATE TABLE IF NOT EXISTS `appcontent` (
 
 -- --------------------------------------------------------
 
+--
+-- Table structure for table `appmigrations`
+--
+
+CREATE TABLE `appmigrations` (
+  `version` int(11) NOT NULL,
+  `migrated` datetime NOT NULL,
+  `result` text NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+
+-- --------------------------------------------------------
+
 --
 -- Table structure for table `collectionattributes`
 --

sqlite.sql

@@ -32,6 +32,18 @@ CREATE TABLE IF NOT EXISTS `appcontent` (
 
 -- --------------------------------------------------------
 
+--
+-- Table structure for table appmigrations
+--
+
+CREATE TABLE `appmigrations` (
+  `version` INT NOT NULL,
+  `migrated` DATETIME NOT NULL,
+  `result` TEXT NOT NULL
+);
+
+-- --------------------------------------------------------
+
 --
 -- Table structure for table collectionattributes
 --