/
main.go
121 lines (105 loc) · 2.44 KB
/
main.go
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package main
import (
"embed"
"fmt"
"io"
"io/fs"
"os"
"path/filepath"
"strings"
)
//go:embed examples
var project embed.FS
func main() {
if len(os.Args) < 2 {
fmt.Printf("lazygo [create|init] PackageName [ProjectName]\n")
return
}
var packageName string
var projectName string
op := strings.ToLower(os.Args[1])
switch op {
case "create":
if len(os.Args) < 4 {
fmt.Printf("lazygo create PackageName ProjectName\n")
return
}
packageName = os.Args[2]
projectName = os.Args[3]
_, err := os.Stat(projectName)
if !os.IsNotExist(err) {
fmt.Printf("目录 %s 已存在\n", projectName)
return
}
err = os.Mkdir(projectName, os.ModePerm)
if err != nil {
fmt.Printf("目录 %s 创建失败\n", projectName)
return
}
case "init":
if len(os.Args) < 3 {
fmt.Printf("lazygo create PackageName ProjectName\n")
return
}
packageName = os.Args[2]
empty, err := DirIsEmpty(".")
if err != nil {
}
if !empty {
fmt.Printf("current dir not empty\n")
return
}
default:
fmt.Printf("lazygo create|init PackageName [ProjectName]\n")
return
}
if projectName == "" {
fmt.Printf("lazygo create|init PackageName [ProjectName]\n")
return
}
project, err := fs.Sub(project, "examples")
if err != nil {
panic(err) // unexpected or a typo
}
fs.WalkDir(project, ".", func(path string, d fs.DirEntry, err error) error {
if path == "." || path == ".." {
return nil
}
projectPath := filepath.Join(projectName, path)
if strings.HasSuffix(projectPath, "go.mod_") || strings.HasSuffix(projectPath, "go.sum_") {
projectPath = strings.TrimRight(projectPath, "_")
}
if d.IsDir() {
err = os.Mkdir(projectPath, os.ModePerm)
if err != nil {
fmt.Printf("%s 创建失败\n", projectPath)
return err
}
return nil
}
data, err := fs.ReadFile(project, path)
if err != nil {
fmt.Printf("%s 读取失败\n", projectPath)
return err
}
content := strings.Replace(string(data), "github.com/lazygo/lazygo/examples", packageName, -1)
err = os.WriteFile(projectPath, []byte(content), os.ModePerm)
if err != nil {
fmt.Printf("%s 写入失败\n", projectPath)
return err
}
return nil
})
}
func DirIsEmpty(name string) (bool, error) {
f, err := os.Open(name)
if err != nil {
return false, err
}
defer f.Close()
_, err = f.Readdirnames(1) // Or f.Readdir(1)
if err == io.EOF {
return true, nil
}
return false, err // Either not empty or error, suits both cases
}