media-picker/core/file_scanner.go

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package core
import (
"OdMediaPicker/util"
"OdMediaPicker/vars"
"fmt"
"github.com/redmask-hb/GoSimplePrint/goPrint"
"log"
"os"
"path"
"path/filepath"
"strings"
)
type FileScanner struct {
}
func (FileScanner) DoScan(rootDir string) {
fmt.Printf("=== 开始扫描文件 \n")
if err := filepath.Walk(rootDir, visit); err != nil {
log.Fatal(err)
}
doReadFileMimeInfo()
}
func doReadFileMimeInfo() {
total := len(vars.GlobalFilePathList)
fmt.Printf("=== 文件总数: %d \n", total)
// 扫描文件mime信息
var count = 0
bar := goPrint.NewBar(100)
bar.SetNotice("=== 扫描文件Mime")
bar.SetGraph(">")
bar.SetNoticeColor(goPrint.FontColor.Red)
for _, currentPath := range vars.GlobalFilePathList {
// mime
vars.GlobalFilePath2MimeInfoMap[currentPath] = util.ReadFileMimeInfo(currentPath).String()
count = count + 1
bar.PrintBar(util.CalcPercentage(count, total))
}
bar.PrintEnd("=== Finish")
}
func (FileScanner) DoFilter() {
total := len(vars.GlobalFilePathList)
var count = 0
bar := goPrint.NewBar(100)
bar.SetNotice("=== 过滤已支持的媒体:")
bar.SetGraph(">")
for _, globalFilePath := range vars.GlobalFilePathList {
fileMime := vars.GlobalFilePath2MimeInfoMap[globalFilePath]
count = count + 1
if strings.Contains(fileMime, "video/") { // 视频
vars.GlobalVideoPathList = append(vars.GlobalVideoPathList, globalFilePath)
bar.PrintBar(util.CalcPercentage(count, total))
continue
}
// mime格式为application/octet-stream的视频
ext := path.Ext(globalFilePath)
if isSupportVideo(ext) {
vars.GlobalVideoPathList = append(vars.GlobalVideoPathList, globalFilePath)
bar.PrintBar(util.CalcPercentage(count, total))
continue
}
if strings.Contains(fileMime, "image/") { // 图片
vars.GlobalImagePathList = append(vars.GlobalImagePathList, globalFilePath)
bar.PrintBar(util.CalcPercentage(count, total))
continue
}
if isSupportImage(ext) {
vars.GlobalImagePathList = append(vars.GlobalImagePathList, globalFilePath)
bar.PrintBar(util.CalcPercentage(count, total))
continue
}
// 其他的文件不处理
}
bar.PrintEnd("=== Finish")
}
// 定义walkFn回调函数visit
func visit(currentPath string, info os.FileInfo, err error) error {
if err != nil {
return err // 如果有错误,直接返回
}
if !info.IsDir() {
vars.GlobalFilePathList = append(vars.GlobalFilePathList, currentPath)
// filename, include ext
vars.GlobalFilePath2FileNameMap[currentPath] = filepath.Base(currentPath)
// file ext
vars.GlobalFilePath2FileExtMap[currentPath] = path.Ext(currentPath)
}
return nil
}