starting gozek

gozek.go

@@ -0,0 +1,120 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"os/exec"
+	"strings"
+
+	"gopkg.in/yaml.v2"
+
+	"github.com/codegangsta/cli"
+	"github.com/codeskyblue/go-sh"
+)
+
+// A Config is the configuration for the app
+type Config struct {
+	Name    string
+	Port    string
+	Link    string
+	Image   string
+	Volume  string
+	Command string
+}
+
+func loadConfig() (config *Config, pwd string) {
+	pwd, _ = os.Getwd()
+	dir := strings.Split(pwd, "/")
+	appName := dir[len(dir)-1]
+
+	data, _ := ioutil.ReadFile(os.Getenv("HOME") + "/.gozek/" + appName + ".yml")
+	config = new(Config)
+
+	err := yaml.Unmarshal(data, &config)
+	if err != nil {
+		log.Fatalf("error: %v", err)
+	}
+
+	return config, pwd
+}
+
+func pipeCommands(commands ...*exec.Cmd) []byte {
+	for i, command := range commands[:len(commands)-1] {
+		out, err := command.StdoutPipe()
+		if err != nil {
+			return nil
+		}
+		command.Start()
+		commands[i+1].Stdin = out
+	}
+	final, err := commands[len(commands)-1].Output()
+	if err != nil {
+		return nil
+	}
+	return final
+}
+
+func main() {
+	app := cli.NewApp()
+	app.Name = "Gozek"
+	app.Usage = "Run Docker commands easily"
+
+	app.Commands = []cli.Command{
+		{
+			Name:    "build",
+			Aliases: []string{"b"},
+			Usage:   "build an image",
+			Action: func(c *cli.Context) {
+				config, _ := loadConfig()
+
+				cmdName := "docker"
+				cmdArgs := []string{"build", "-t", config.Image, "."}
+
+				cmd := exec.Command(cmdName, cmdArgs...)
+				cmdReader, err := cmd.StdoutPipe()
+				if err != nil {
+					fmt.Fprintln(os.Stderr, "Error creating StdoutPipe for Cmd", err)
+					os.Exit(1)
+				}
+
+				scanner := bufio.NewScanner(cmdReader)
+				go func() {
+					for scanner.Scan() {
+						fmt.Printf("docker build out | %s\n", scanner.Text())
+					}
+				}()
+
+				err = cmd.Start()
+				if err != nil {
+					fmt.Fprintln(os.Stderr, "Error starting Cmd", err)
+					os.Exit(1)
+				}
+
+				err = cmd.Wait()
+				if err != nil {
+					fmt.Fprintln(os.Stderr, "Error waiting for Cmd", err)
+					os.Exit(1)
+				}
+			},
+		},
+		{
+			Name:    "run",
+			Aliases: []string{"r"},
+			Usage:   "run an image",
+			Action: func(c *cli.Context) {
+				config, pwd := loadConfig()
+
+				err := sh.Command("docker", "run", "--name", config.Name, "-a", "stdout", "-a", "stderr", "-i", "-t", "-p", config.Port, "--link",
+					config.Link, "-v", pwd+":/go/src/"+config.Name, config.Image, config.Command).Run()
+				if err != nil {
+					log.Fatal(err)
+				}
+			},
+		},
+	}
+
+	app.Run(os.Args)
+}