From 12fcbd8d19f59ba68cbb421f9fc80ef1e81ed207 Mon Sep 17 00:00:00 2001
From: sre <sre@yangqiao.org>
Date: Fri, 17 Jun 2022 17:33:36 +0800
Subject: [PATCH] File  file.File

---
 file/entry.go      |  4 ++++
 file/entry_test.go |  3 +++
 file/file.go       | 37 +++++++++++++++++++++++++++++++++++++
 file/file_test.go  | 14 ++++++++++++++
 gtool.go           |  2 ++
 5 files changed, 60 insertions(+)
 create mode 100644 file/entry.go
 create mode 100644 file/entry_test.go
 create mode 100644 file/file.go
 create mode 100644 file/file_test.go

diff --git a/file/entry.go b/file/entry.go
new file mode 100644
index 0000000..4533248
--- /dev/null
+++ b/file/entry.go
@@ -0,0 +1,4 @@
+package file
+
+type File struct {
+}
diff --git a/file/entry_test.go b/file/entry_test.go
new file mode 100644
index 0000000..6ef9ad2
--- /dev/null
+++ b/file/entry_test.go
@@ -0,0 +1,3 @@
+package file
+
+var file File
diff --git a/file/file.go b/file/file.go
new file mode 100644
index 0000000..ea00752
--- /dev/null
+++ b/file/file.go
@@ -0,0 +1,37 @@
+package file
+
+import (
+	"encoding/base64"
+	"os"
+)
+
+func (fl *File) ByteToBase64(b []byte) string {
+	return base64.StdEncoding.EncodeToString(b)
+}
+
+// Base64ToByte base64 string to byte
+// baseStr parameter is base64 string
+func (fl *File) Base64ToByte(baseStr string) ([]byte, error) {
+	return base64.StdEncoding.DecodeString(string(baseStr))
+}
+
+// ByteToFile The byte array is converted into a file and landed
+// The parameter b is the bate array filePath file path
+func (fl *File) ByteToFile(b []byte, filePath string) error {
+	//Open file Create a file if there is no file
+	file, err := os.OpenFile(filePath, os.O_RDWR|os.O_CREATE, os.ModePerm)
+	if err != nil {
+		return err
+	}
+	_, err = file.Write(b)
+	if err != nil {
+		return err
+	}
+	defer func(file *os.File) {
+		err := file.Close()
+		if err != nil {
+			panic(err)
+		}
+	}(file)
+	return nil
+}
diff --git a/file/file_test.go b/file/file_test.go
new file mode 100644
index 0000000..3225d16
--- /dev/null
+++ b/file/file_test.go
@@ -0,0 +1,14 @@
+package file
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestFile_ByteToBase64(t *testing.T) {
+	byteStr := []byte("hello world!")
+	base64Str := file.ByteToBase64(byteStr)
+	byteresult, _ := file.Base64ToByte(base64Str)
+	fmt.Println(base64Str)
+	fmt.Println(byteresult)
+}
diff --git a/gtool.go b/gtool.go
index aa5b0c7..50fead0 100644
--- a/gtool.go
+++ b/gtool.go
@@ -3,6 +3,7 @@ package gtool
 import (
 	"git.sre.ink/go/gtool/convert"
 	"git.sre.ink/go/gtool/crypto"
+	"git.sre.ink/go/gtool/file"
 	"git.sre.ink/go/gtool/rand"
 	"git.sre.ink/go/gtool/regx"
 	"git.sre.ink/go/gtool/str"
@@ -15,4 +16,5 @@ var (
 	Rand  rand.Rand
 	Conv  convert.Conv
 	Regx  regx.Regx
+	File  file.File
 )