Actual drone-invokable helm commands

cmd/drone-helm/main.go

@@ -2,25 +2,23 @@ package main
 
 import (
 	"fmt"
+	"github.com/urfave/cli"
 	"os"
 
-	"github.com/urfave/cli"
+	"github.com/pelotech/drone-helm3/internal/run"
 )
 
 func main() {
-	_ = fmt.Println
-	_ = os.Exit
-
 	app := cli.NewApp()
 	app.Name = "helm plugin"
 	app.Usage = "helm plugin"
-	app.Action = run
+	app.Action = execute
 	app.Version = "0.0.1α"
 	app.Flags = []cli.Flag{
 		cli.StringFlag{
-			Name:   "echo, e",
-			Usage:  "this text'll be ech'll",
-			EnvVar: "ECHO",
+			Name:   "helm_command",
+			Usage:  "Helm command to execute",
+			EnvVar: "PLUGIN_HELM_COMMAND,HELM_COMMAND",
 		},
 	}
 
@@ -29,7 +27,19 @@ func main() {
 	}
 }
 
-func run(c *cli.Context) error {
-	fmt.Println(c.String("echo"))
+
+func execute(c *cli.Context) error {
+	switch c.String("helm_command") {
+	case "upgrade":
+		run.Upgrade()
+	case "help":
+		run.Help()
+	default:
+		switch os.Getenv("DRONE_BUILD_EVENT") {
+		case "push", "tag", "deployment", "pull_request", "promote", "rollback":
+			run.Upgrade()
+		default:
+			run.Help()
+	}
 	return nil
 }