bee/apiapp.go

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2013-07-08 07:34:58 +00:00
package main
import (
"fmt"
"os"
path "path/filepath"
"strings"
)
var cmdApiapp = &Command{
// CustomFlags: true,
UsageLine: "api [appname]",
Short: "create an api application base on beego framework",
Long: `
create an api application base on beego framework
In the current path, will create a folder named [appname]
In the appname folder has the follow struct:
conf
   app.conf
controllers
   default.go
main.go
models
default.go
`,
}
var apiconf = `
appname = {{.Appname}}
httpport = 8080
runmode = dev
autorender = false
`
var apiMaingo = `package main
import (
"{{.Appname}}/controllers"
"github.com/astaxie/beego"
)
func main() {
beego.Router("/", &controllers.MainController{})
beego.Run()
}
`
var apiModels = `package models
type User struct {
Name string
Email string
}
func (this *User) All() (users []User, err error) {
// get all users from DB
// users, err = queryAll()
users = append([]User{}, User{"astaxie", "astaxie@gmail.com"})
return
}
`
var apiControllers = `package controllers
import (
"{{.Appname}}/models"
"github.com/astaxie/beego"
)
type MainController struct {
beego.Controller
}
func (this *MainController) Get() {
var user models.User
users, err := user.All()
if err != nil {
this.Data["json"] = err
} else {
this.Data["json"] = users
}
this.ServeJson()
}
`
func init() {
cmdApiapp.Run = createapi
}
func createapi(cmd *Command, args []string) {
if len(args) != 1 {
fmt.Println("error args")
os.Exit(2)
}
apppath, packpath, err := checkEnv(args[0])
if err != nil {
fmt.Println(err)
os.Exit(2)
}
os.MkdirAll(apppath, 0755)
fmt.Println("create app folder:", apppath)
os.Mkdir(path.Join(apppath, "conf"), 0755)
fmt.Println("create conf:", path.Join(apppath, "conf"))
os.Mkdir(path.Join(apppath, "controllers"), 0755)
fmt.Println("create controllers:", path.Join(apppath, "controllers"))
os.Mkdir(path.Join(apppath, "models"), 0755)
fmt.Println("create models:", path.Join(apppath, "models"))
fmt.Println("create conf app.conf:", path.Join(apppath, "conf", "app.conf"))
writetofile(path.Join(apppath, "conf", "app.conf"),
strings.Replace(apiconf, "{{.Appname}}", args[0], -1))
fmt.Println("create controllers default.go:", path.Join(apppath, "controllers", "default.go"))
writetofile(path.Join(apppath, "controllers", "default.go"),
strings.Replace(apiControllers, "{{.Appname}}", packpath, -1))
fmt.Println("create models default.go:", path.Join(apppath, "models", "default.go"))
writetofile(path.Join(apppath, "models", "default.go"), apiModels)
fmt.Println("create main.go:", path.Join(apppath, "main.go"))
writetofile(path.Join(apppath, "main.go"),
strings.Replace(apiMaingo, "{{.Appname}}", packpath, -1))
}
func checkEnv(appname string) (apppath, packpath string, err error) {
curpath, err := os.Getwd()
if err != nil {
return
}
gopath := os.Getenv("GOPATH")
Debugf("gopath:%s", gopath)
if gopath == "" {
err = fmt.Errorf("you should set GOPATH in the env")
return
}
appsrcpath := ""
haspath := false
wgopath := path.SplitList(gopath)
for _, wg := range wgopath {
wg = path.Join(wg, "src")
if path.HasPrefix(strings.ToLower(curpath), strings.ToLower(wg)) {
haspath = true
appsrcpath = wg
break
}
}
if !haspath {
err = fmt.Errorf("can't create application outside of GOPATH `%s`\n"+
"you first should `cd $GOPATH%ssrc` then use create\n", gopath, string(path.Separator))
return
}
apppath = path.Join(curpath, appname)
if _, e := os.Stat(apppath); os.IsNotExist(e) == false {
err = fmt.Errorf("path `%s` exists, can not create app without remove it\n", apppath)
return
}
packpath = strings.Join(strings.Split(apppath[len(appsrcpath)+1:], string(path.Separator)), "/")
return
}