Add "run-script" command

This adds a new command "run-script" which allows the user to run
arbitrary commands from the "scripts" object defined in Beefile.

cmd/commands/run/runscript.go

@@ -0,0 +1,96 @@
+// Copyright 2017 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 run
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"runtime"
+	"time"
+
+	"github.com/beego/bee/cmd/commands"
+	"github.com/beego/bee/cmd/commands/version"
+	beeLogger "github.com/beego/bee/logger"
+	"github.com/beego/bee/logger/colors"
+)
+
+var cmdRunScript = &commands.Command{
+	UsageLine: "run-script",
+	Short:     "Run customized scripts",
+	Long: `run-script allows you to run arbitrary commands using Bee.
+  Custom commands are provided from the "scripts" object inside bee.json or Beefile.
+`,
+	PreRun: func(cmd *commands.Command, args []string) { version.ShowShortVersionBanner() },
+	Run:    runScript,
+}
+
+var (
+	scripts map[string]string
+)
+
+func init() {
+	commands.AvailableCommands = append(commands.AvailableCommands, cmdRunScript)
+	scripts = make(map[string]string)
+	scripts["test"] = "go test -v github.com/astaxie/beego"
+	scripts["ls"] = "ls -all"
+}
+
+func runScript(cmd *commands.Command, args []string) int {
+	if len(args) == 0 {
+		cmd.Usage()
+	}
+
+	start := time.Now()
+	for _, arg := range os.Args[2:] {
+		script := scriptCmd{
+			Name:    arg,
+			Command: scripts[arg],
+		}
+		if err := script.run(); err != nil {
+			beeLogger.Log.Error(err.Error())
+		}
+	}
+	elapsed := time.Since(start)
+
+	fmt.Println(colors.CyanBold(fmt.Sprintf("Finished in %s.", elapsed)))
+	return 0
+}
+
+type scriptCmd struct {
+	Name    string
+	Command string
+}
+
+func (sc *scriptCmd) run() error {
+	beeLogger.Log.Info(colors.CyanBold(fmt.Sprintf("Running '%s'...", sc.Name)))
+
+	if len(sc.Command) == 0 {
+		return fmt.Errorf(fmt.Sprintf("No script to run for command '%s'", sc.Name))
+	}
+
+	var c *exec.Cmd
+	switch runtime.GOOS {
+	case "darwin", "linux":
+		c = exec.Command("sh", "-c", sc.Command)
+	case "windows":
+		// Not supported yet
+	}
+	out, err := c.Output()
+	if err != nil {
+		return err
+	}
+	fmt.Println(string(out))
+	return nil
+}