style:包名小写

util/file.go

@@ -0,0 +1,69 @@
+package util
+
+import (
+	"bufio"
+	"encoding/json"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+)
+
+type file struct{}
+
+var File file
+
+func (a *file) Exists(path string) bool {
+	_, err := os.Stat(a.GetRootPath() + path)
+	if err != nil {
+		if os.IsExist(err) {
+			return true
+		}
+		return false
+	}
+	return true
+}
+
+func (a *file) Read(path string) ([]byte, error) {
+	return ioutil.ReadFile(a.GetRootPath() + path)
+}
+
+func (a *file) ReadJson(path string, receiver interface{}) error {
+	data, err := a.Read(path)
+	if err != nil {
+		return err
+	}
+	return json.Unmarshal(data, receiver)
+}
+
+func (a *file) Write(path string, data []byte) error {
+	return ioutil.WriteFile(a.GetRootPath()+path, data, 700)
+}
+
+func (a *file) WriteJson(path string, receiver interface{}) error {
+	data, err := json.MarshalIndent(receiver, "", " ")
+	if err != nil {
+		return err
+	}
+	return a.Write(path, data)
+}
+
+func (*file) GetRootPath() string {
+	t, err := os.Executable()
+	if err != nil {
+		ErrHandler(err)
+	}
+	return filepath.Dir(t) + "/"
+}
+
+func (a *file) Add(path string, c string) error {
+	file, err := os.OpenFile(a.GetRootPath()+path, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 700)
+	defer file.Close()
+	if err != nil {
+		return err
+	}
+	w := bufio.NewWriter(file)
+	if _, err = w.WriteString(c + "\n"); err != nil {
+		return err
+	}
+	return w.Flush()
+}