141 lines
2.3 KiB
Go
141 lines
2.3 KiB
Go
/*
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Copyright © 2022 Seednode <seednode@seedno.de>
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*/
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package cmd
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import (
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"errors"
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"math/rand"
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"os"
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"path/filepath"
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"time"
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"github.com/h2non/filetype"
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)
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func checkIfImage(path string) (bool, error) {
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file, err := os.Open(path)
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if err != nil {
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return false, err
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}
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defer file.Close()
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head := make([]byte, 261)
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file.Read(head)
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if filetype.IsImage(head) {
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return true, nil
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}
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return false, nil
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}
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func getFiles(path string) ([]string, error) {
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var paths []string
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err := filepath.WalkDir(path, func(p string, info os.DirEntry, err error) error {
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if info.IsDir() && p != path {
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return filepath.SkipDir
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} else {
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absolutePath, err := filepath.Abs(p)
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if err != nil {
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return err
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}
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paths = append(paths, absolutePath)
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}
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return err
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})
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if err != nil {
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return nil, err
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}
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return paths, nil
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}
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func getFilesRecursive(path string) ([]string, error) {
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var paths []string
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err := filepath.WalkDir(path, func(p string, info os.DirEntry, err error) error {
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if !info.IsDir() {
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absolutePath, err := filepath.Abs(p)
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if err != nil {
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return err
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}
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paths = append(paths, absolutePath)
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}
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return err
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})
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if err != nil {
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return nil, err
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}
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return paths, nil
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}
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func getFileList(paths []string) ([]string, error) {
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fileList := []string{}
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for i := 0; i < len(paths); i++ {
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if Recursive {
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f, err := getFilesRecursive(paths[i])
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if err != nil {
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return nil, err
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}
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fileList = append(fileList, f...)
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} else {
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f, err := getFiles(paths[i])
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if err != nil {
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return nil, err
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}
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fileList = append(fileList, f...)
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}
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}
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return fileList, nil
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}
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func pickFile(args []string) (string, error) {
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fileList, err := getFileList(args)
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if err != nil {
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return "", err
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}
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rand.Seed(time.Now().UnixNano())
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rand.Shuffle(len(fileList), func(i, j int) { fileList[i], fileList[j] = fileList[j], fileList[i] })
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for i := 0; i < len(fileList); i++ {
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filePath := fileList[i]
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isImage, err := checkIfImage(filePath)
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if err != nil {
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return "", err
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}
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if isImage {
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return filePath, nil
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}
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}
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err = errors.New("no images found")
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return "", err
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}
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func normalizePaths(args []string) ([]string, error) {
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var paths []string
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for i := 0; i < len(args); i++ {
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absolutePath, err := filepath.Abs(args[i])
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if err != nil {
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return nil, err
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}
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paths = append(paths, absolutePath)
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}
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return paths, nil
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}
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