added base app

Author: aldernero

cmd/sketchy/main.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+	"io/fs"
+	"log"
+	"os"
+	"path"
+)
+
+func main() {
+	cwd, err := os.Getwd()
+	if err != nil {
+		log.Fatal(err)
+	}
+	initCmd := flag.NewFlagSet("init", flag.ExitOnError)
+	targetDir := initCmd.String("d", cwd, "Target directory")
+	prefix := initCmd.String("p", "sketch", "Project prefix")
+	if len(os.Args) < 2 {
+		fmt.Println("expected 'init' or 'run' subcommands")
+		os.Exit(1)
+	}
+	switch os.Args[1] {
+	case "init":
+		initCmd.Parse(os.Args[2:])
+		dirPath := path.Join(*targetDir, *prefix)
+		if _, err := os.Stat(dirPath); errors.Is(err, fs.ErrExist) {
+			log.Fatal("can't make directory: ", err)
+		}
+		err := os.Mkdir(dirPath, 0644)
+		if err != nil {
+			log.Fatal("error while creating directory: ", err)
+		}
+	}
+}