first rough implementation of go project generator

dirlist.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func dirlist() []string {
+	var output []string
+	wd, _ := os.Getwd()
+	dirlist, _ := os.ReadDir(wd)
+	for _, item := range dirlist {
+		if os.DirEntry.IsDir(item) {
+			output = append(output, fmt.Sprintf(wd + "/" + os.DirEntry.Name(item) + "/"))
+		} else {
+			output = append(output, fmt.Sprintf(wd + "/" + os.DirEntry.Name(item)))
+		}
+	}
+	return output
+}
+

filer.go

@@ -1,26 +1,28 @@
 package main
 
 import (
-	"log"
 	"os"
 	"path/filepath"
 )
 
-// for generating the project blanks
-func createFile(fpath string) bool {
-	fl, err := newFile(fpath)
-	if err != nil {
-		log.Fatal(err)
-		return false
+func createDir(fpath string) error {
+	if err := os.Mkdir(filepath.Dir(fpath + string(filepath.Separator)), 0770); err != nil {
+		return err
 	}
-	fl.Close()
-	return true
+	return nil
 }
 
-// in case we need a file we can edit
-func newFile(fpath string) (*os.File, error) {
+// for generating the project blanks
+func createFile(fpath string) error {
+	// create directory automatically, if non-existent
 	if err := os.MkdirAll(filepath.Dir(fpath), 0770); err != nil {
-		return nil, err
+		return err
 	}
-	return os.Create(fpath)
+	//create the file, but that's all
+	file, err := os.Create(fpath)
+	if err != nil {
+		return err
+	}
+	file.Close()
+	return nil
 }

main.go

@@ -1,19 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-)
-
-func main() {
-	wd, _ := os.Getwd()
-	dirlist, _ := os.ReadDir(wd)
-	fmt.Println(wd)
-	for _, item := range dirlist {
-		if os.DirEntry.IsDir(item) {
-			fmt.Println(wd + "/" + os.DirEntry.Name(item) + "/")
-		} else {
-			fmt.Println(wd + "/" + os.DirEntry.Name(item))
-		}
-	}
-}

projector.go

@@ -0,0 +1,93 @@
+package main
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+func createGenericFiles(fpath string) error {
+	sep := string(filepath.Separator)
+	return createFile(fpath + sep + "README.md")
+}
+
+func initGit(fpath string) (outp string, err error) {
+	sep := string(filepath.Separator)
+	fmt.Println("Initializing git repo...")
+	_ = createFile(fpath + sep + ".gitignore")
+	return execute("git init")
+}
+
+
+func createProject(projectType string, projectName string, projectPath string, git bool) (result string, err error) {
+	sep := string(filepath.Separator)
+	fpath := projectPath + sep  + projectName
+
+	switch projectType {
+	case "python":
+		result = fmt.Sprintf("Created a python project named '%s' at directory '%s'\n", projectName, projectPath)
+	case "go":
+		var errors []error
+		errors = append(errors, createGenericFiles(fpath))                    // Also creates base directory
+		errors = append(errors, os.Chdir(fpath))                              // CD into the base directory
+		errors = append(errors, createDir( "vendor"))                   // create the vendor dir
+		errors = append(errors, createDir("build"))                     // create the build directory for binaries
+		_, ee := execute("go mod init " + projectName)                        // use mod init to generate the go.mod
+		errors = append(errors, ee)
+		errors = append(errors, createFile(fpath + sep + "go.sum"))     // manually create the go.sum
+		for _, erline := range errors {
+			if erline != nil {
+				fmt.Println(erline)
+			}
+		}
+		for _, line := range dirlist() {
+			fmt.Println(line)
+		}
+		result = fmt.Sprintf("Created a go project named '%s' at directory '%s'\n", projectName, projectPath)
+	default:
+		return "", errors.New(fmt.Sprintf("Project type '%s' is not supported.\n", projectType))
+	}
+
+	if git {
+		res, errr := initGit(fpath)
+		if errr != nil {
+			fmt.Println(res)
+		}
+	}
+
+	return result, err
+}
+
+func main() {
+	argCount := len(os.Args[1:])
+
+	var projectName string
+	var projectType string
+	var projectPath string
+	var git bool
+
+	flag.StringVar(&projectName, "n", "", "Name of project.")
+	flag.StringVar(&projectType, "t", "go", "Type of project.")
+	flag.StringVar(&projectPath, "p", ".", "Directory path for project.")
+	flag.BoolVar(&git, "g", false, "Initialize git repo.")
+	flag.Parse()
+
+	if argCount == 0 {
+		flag.Usage()
+	}
+
+	if argCount > 0 {
+		if projectName == "" {
+			fmt.Println("Oops! No project name is provided. What do you want to call your project?")
+			os.Exit(1)
+		}
+		result, err := createProject(projectType, projectName, projectPath, git)
+		if err != nil {
+			fmt.Println(err)
+		}
+		fmt.Println(result)
+	}
+
+}