/
execute.go
87 lines (75 loc) · 1.75 KB
/
execute.go
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package cli
import (
"flag"
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
"github.com/purefun/go-gen-dapr/generator"
"golang.org/x/tools/go/packages"
)
var (
pkg string
pkgValue = "." // current package
pkgUsage = "the package contains the type"
target string
targetValue = "service"
targetUsage = "service, pubsub, subscriber"
)
func usage() {
fmt.Fprintln(os.Stderr, "Usage:")
fmt.Fprintln(os.Stderr, "\tgo-gen-dapr [flags] [interface]")
fmt.Fprintln(os.Stderr, "Flags:")
flag.PrintDefaults()
}
func Execute() {
log.SetFlags(0)
flag.Usage = usage
flag.StringVar(&pkg, "pkg", pkgValue, pkgUsage)
flag.StringVar(&target, "target", targetValue, targetUsage)
flag.Parse()
var out string
var err error
switch target {
case "pubsub":
out, err = generator.GeneratePublishEvents(generator.PublishEventsOptions{
Pkg: pkg,
GenComment: true,
})
case "service", "subscriber":
args := flag.Args()
if len(args) == 0 {
fmt.Println("go-gen-dapr SomeInterfaceName")
flag.Usage()
os.Exit(1)
}
generateType := generator.GenerateTypeService
if target == "subscriber" {
generateType = generator.GenerateTypeSubscriber
}
g := generator.NewGenerator(generator.Options{
ServicePkg: pkg,
ServiceType: args[0],
GenComment: true,
GenerateType: generateType,
})
out, err = g.Generate()
default:
flag.Usage()
os.Exit(1)
}
if err != nil {
log.Fatal(err)
}
pkgs, err := packages.Load(&packages.Config{Mode: packages.NeedFiles}, pkg)
if err != nil {
log.Fatal("load package failed: ", err)
}
file := pkgs[0].GoFiles[0]
outFile := filepath.Join(filepath.Dir(file), target+".dapr.go")
err = ioutil.WriteFile(outFile, []byte(out), 0644)
if err != nil {
log.Fatal("write file err: ", err)
}
}