wutils

README

wutils

golang tools

Documentation

Index

• Constants
• Variables
• func CompressImage(sourcePath string, targetPath string, format string, quality int) error
• func CompressImageExt(sourcePath string, targetPath string, format string, quality int, ...) error
• func CopyFile(src string, dst string) (int64, error)
• func CopyFileWithBuff(srcFile *os.File, dstFile *os.File, bufSize int) (int64, error)
• func CreateFolderIfNotExists(filePath string, perm os.FileMode)
• func FileExists(path string) bool
• func IsByteArrayEqual(a1 []byte, a2 []byte) bool
• func IsDir(path string) bool
• func IsFileType(ft *FileType, f *os.File) bool
• func NotDir(path string) bool
• func PathIsFileType(ft *FileType, p string) bool
• func SupportFormat(format string) bool
• type FileType
  • func CreateFileType(code string, name string, suffix []string, magicNumberStrings []string) *FileType

Constants

const (
	DefaultFileMode     = 0766
	CopyWhenUnsupported = 1
)

const CopyFileBuffSize = 1024 * 4

CopyFileBuffSize 复制用的buff大小 4k

Variables

var BmpFile = CreateFileType("BmpFile", "bmp图片格式", []string{"bmp"}, []string{"BM"})

var GifFile = CreateFileType("GifFile", "gif图片格式", []string{"gif"}, []string{"GIF"})

var GzipFile = CreateFileType("GzipFile", "gzip格式压缩文件", []string{"gzip", "gz", "tgz"}, []string{"\x1F\x8B\x08"})

var JavaClassFile = CreateFileType("JavaClassFile", "Java类", []string{"class"}, []string{"\xCA\xFE\xBA\xBE"})

var JpegFile = CreateFileType("JpegFile", "jpeg图片格式", []string{"jpg", "jpeg"}, []string{"\xff\xd8\xff"})

var LinuxExecuteFile = CreateFileType("LinuxExecuteFile", "Linux可执行文件", []string{""}, []string{"\x7fELF"})

var Office03File = CreateFileType("Office03File", "Office97-2003文件", []string{"doc"}, []string{"\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1"})

var PdfFile = CreateFileType("PdfFile", "pdf文件", []string{"pdf"}, []string{"%PDF-"})

var PngFile = CreateFileType("PngFile", "png图片格式", []string{"png"}, []string{"\x89PNG"})

var RarFile = CreateFileType("RarFile", "rar格式压缩文件", []string{"rar"}, []string{"Rar!"})

var RpmFile = CreateFileType("RpmFile", "rpm格式文件", []string{"rpm"}, []string{"\xED\xAB\xEE\xDB"})

var RtfFile = CreateFileType("RtfFile", "rtf文件", []string{"rtf"}, []string{"{\\rtf"})

var WindowsExecuteFile = CreateFileType("WindowsExecuteFile", "Windows可执行文件", []string{"exe"}, []string{"MZ"})

var X7zFile = CreateFileType("X7zFile", "7z格式压缩文件", []string{"7z"}, []string{"7z\xBC\xAF\x27"})

var ZipFile = CreateFileType("ZipFile", "zip格式压缩文件", []string{"zip"}, []string{"PK\x03\x04"})

Functions

func CompressImage

func CompressImage(sourcePath string, targetPath string, format string, quality int) error

CompressImage 压缩图片

func CompressImageExt

func CompressImageExt(sourcePath string, targetPath string, format string, quality int, perm os.FileMode, unsupported int) error

CompressImageExt 压缩图片的扩展方法

func CopyFile

func CopyFile(src string, dst string) (int64, error)

CopyFile 复制文件

func CopyFileWithBuff

func CopyFileWithBuff(srcFile *os.File, dstFile *os.File, bufSize int) (int64, error)

CopyFileWithBuff 使用buff讲一个打开的文件复制到另一个打开的文件

func CreateFolderIfNotExists

func CreateFolderIfNotExists(filePath string, perm os.FileMode)

CreateFolderIfNotExists 创建临时文件路径，如果他不存在的话

func FileExists

func FileExists(path string) bool

FileExists 判断所给路径文件/文件夹是否存在

func IsByteArrayEqual

func IsByteArrayEqual(a1 []byte, a2 []byte) bool

IsByteArrayEqual 判断数组是否相等

func IsDir

func IsDir(path string) bool

IsDir 判断所给路径是否为文件夹

func IsFileType

func IsFileType(ft *FileType, f *os.File) bool

IsFileType 判断指定文件与文件类型是否匹配

func NotDir

func NotDir(path string) bool

NotDir 判断所给路径是否为文件

func PathIsFileType

func PathIsFileType(ft *FileType, p string) bool

PathIsFileType 判断指定路径的文件是否与文件类型匹配

func SupportFormat

func SupportFormat(format string) bool

SupportFormat 是否支持图片格式

Types

type FileType

type FileType struct {
	Code        string
	Name        string
	Suffix      []string
	MagicNumber [][]byte
}

FileType 文件类型

func CreateFileType

func CreateFileType(code string, name string, suffix []string, magicNumberStrings []string) *FileType

CreateFileType 创建FileType