skeleton code for 'migrate' command

bee.go

@@ -83,6 +83,7 @@ var commands = []*Command{
 	cmdVersion,
 	cmdGenerate,
 	cmdRundocs,
+	cmdMigrate,
 }
 
 func main() {

migrate.go

@@ -0,0 +1,90 @@
+// Copyright 2013 bee authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package main
+
+import "os"
+
+var cmdMigrate = &Command{
+	UsageLine: "migrate [Command]",
+	Short:     "run database migrations",
+	Long: `
+bee migrate
+    run all outstanding migrations
+
+bee migrate rollback
+    rollback the last migration operation
+
+bee migrate reset
+    rollback all migrations
+
+bee migrate refresh
+    rollback all migrations and run them all again
+`,
+}
+
+func init() {
+	cmdMigrate.Run = runMigration
+}
+
+func runMigration(cmd *Command, args []string) {
+	//curpath, _ := os.Getwd()
+
+	gopath := os.Getenv("GOPATH")
+	Debugf("gopath:%s", gopath)
+	if gopath == "" {
+		ColorLog("[ERRO] $GOPATH not found\n")
+		ColorLog("[HINT] Set $GOPATH in your environment vairables\n")
+		os.Exit(2)
+	}
+
+	if len(args) == 0 {
+		// run all outstanding migrations
+		ColorLog("[INFO] running all outstanding migrations\n")
+		migrateUpdate()
+	} else {
+		mcmd := args[0]
+		switch mcmd {
+		case "rollback":
+			ColorLog("[INFO] rolling back the last migration operation\n")
+			migrateRollback()
+		case "reset":
+			ColorLog("[INFO] reseting all migrations\n")
+			migrateReset()
+		case "refresh":
+			ColorLog("[INFO] refreshing all migrations\n")
+			migrateReset()
+		default:
+			ColorLog("[ERRO] command is missing\n")
+			os.Exit(2)
+		}
+		ColorLog("[SUCC] migration successful!\n")
+	}
+}
+
+func migrateUpdate() {
+	println("=>update")
+}
+
+func migrateRollback() {
+	println("=>rollback")
+}
+
+func migrateReset() {
+	println("=>reset")
+}
+
+func migrateRefresh() {
+	println("=>refresh")
+}