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go-zero/tools/goctl/api/gogen/genmain.go

86 lines
1.7 KiB
Go

4 years ago
package gogen
import (
"bytes"
"fmt"
"path"
"sort"
"strings"
"text/template"
"zero/tools/goctl/api/spec"
"zero/tools/goctl/api/util"
)
const mainTemplate = `package main
import (
"flag"
{{.importPackages}}
)
var configFile = flag.String("f", "etc/{{.serviceName}}.json", "the config file")
func main() {
flag.Parse()
var c config.Config
conf.MustLoad(*configFile, &c)
ctx := svc.NewServiceContext(c)
engine := rest.MustNewEngine(c.RestConf)
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defer engine.Stop()
handler.RegisterHandlers(engine, ctx)
engine.Start()
}
`
func genMain(dir string, api *spec.ApiSpec) error {
name := strings.ToLower(api.Service.Name)
if strings.HasSuffix(name, "-api") {
name = strings.ReplaceAll(name, "-api", "")
}
goFile := name + ".go"
fp, created, err := util.MaybeCreateFile(dir, "", goFile)
if err != nil {
return err
}
if !created {
return nil
}
defer fp.Close()
parentPkg, err := getParentPackage(dir)
if err != nil {
return err
}
t := template.Must(template.New("mainTemplate").Parse(mainTemplate))
buffer := new(bytes.Buffer)
err = t.Execute(buffer, map[string]string{
"importPackages": genMainImports(parentPkg),
"serviceName": api.Service.Name,
})
if err != nil {
return nil
}
formatCode := formatCode(buffer.String())
_, err = fp.WriteString(formatCode)
return err
}
func genMainImports(parentPkg string) string {
imports := []string{
`"zero/core/conf"`,
`"zero/rest"`,
4 years ago
}
imports = append(imports, fmt.Sprintf("\"%s\"", path.Join(parentPkg, configDir)))
imports = append(imports, fmt.Sprintf("\"%s\"", path.Join(parentPkg, handlerDir)))
imports = append(imports, fmt.Sprintf("\"%s\"", path.Join(parentPkg, contextDir)))
sort.Strings(imports)
return strings.Join(imports, "\n\t")
}