/
main.go
224 lines (203 loc) · 5.87 KB
/
main.go
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package main
import (
"bufio"
"fmt"
"github.com/inancgumus/screen"
"image"
_ "image/jpeg"
_ "image/png"
"log"
"os"
"path"
"slices"
"strconv"
"strings"
)
func main() {
log.SetFlags(0)
if strings.Contains(os.Args[1], "help") {
fmt.Println("Pass in a source directory and then a list of directories into which you want to sort all images from source")
fmt.Println("You can pass --sixel arg to fallback from Kitty graphics protocol to Sixels")
fmt.Println("Example: imagesorter [--sixel] Pictures cool_stuff mediocre_stuff can_be_deleted_safely")
fmt.Println("You can also pass --scan to change the behaviour of the tool - it will take a single target directory," +
"and scan the directories inside it, treating them as new target directories")
os.Exit(0)
}
isSixel := false
isScan := false
var source string
sortingDirectories := make([]string, 0, 2)
for _, arg := range os.Args[1:] {
switch {
case arg == "--sixel":
isSixel = true
case arg == "--scan":
isScan = true
case source == "":
source = arg
default:
sortingDirectories = append(sortingDirectories, arg)
}
}
entries := readFileEntries(source)
warnings := make([]string, 0, 1)
if isScan {
if len(sortingDirectories) != 1 {
log.Fatalf("when using --scan, you have to provide exactly one target directory")
}
target := sortingDirectories[0]
sortingDirectories = scanSortingDirectories(target)
} else {
warnings = createSortingDirectories(sortingDirectories)
}
question := buildQuestion(sortingDirectories)
loopOverFiles(source, question, entries, sortingDirectories, warnings, isSixel)
}
func readFileEntries(path string) []os.DirEntry {
entries, err := os.ReadDir(path)
if err != nil {
log.Fatalf("failed to read from provided source directory %s\n%v", path, err)
}
return entries
}
func scanSortingDirectories(target string) []string {
dirEntries, err := os.ReadDir(target)
if err != nil {
log.Fatalf("Failed to read target dir %s\n%v", target, err)
}
sortingDirectories := make([]string, 0, 1)
for _, dirEntry := range dirEntries {
if !dirEntry.IsDir() {
continue
}
sortingDirectories = append(sortingDirectories, path.Join(target, dirEntry.Name()))
}
return sortingDirectories
}
func createSortingDirectories(sortingDirectories []string) []string {
warnings := make([]string, 0, 1)
for _, sortingDirectory := range sortingDirectories {
err := createNewDir(sortingDirectory)
if err != nil {
warnings = append(warnings, err.Error())
}
}
return warnings
}
func buildQuestion(sortingDirectories []string) string {
questionBuilder := strings.Builder{}
questionBuilder.WriteString("where do you want to move the image? press enter to skip\n")
for i, directory := range sortingDirectories {
questionBuilder.WriteString(fmt.Sprintf("[%d] %s\n", i+1, directory))
}
return questionBuilder.String()
}
func loopOverFiles(source, question string, entries []os.DirEntry, sortingDirectories, warnings []string, isSixel bool) {
reader := bufio.NewReader(os.Stdin)
// can't really check, setting true by default
printer := ImagePrinter{isKittySupported: !isSixel}
allowedExtensions := []string{".png", "jpg", "jpeg"}
for _, picture := range entries {
if picture.IsDir() {
continue
}
pictureName := picture.Name()
allowed := false
for _, extension := range allowedExtensions {
lower := strings.ToLower(pictureName)
if strings.HasSuffix(lower, extension) {
allowed = true
break
}
}
if !allowed {
continue
}
screen.Clear()
screen.MoveTopLeft()
f := openImageOrFail(source, pictureName)
img := decodeImageOrFail(f)
printer.PrintImageOrFail(img)
_ = f.Close()
fmt.Printf("%s\n\n", pictureName)
if len(warnings) != 0 {
for _, warning := range warnings {
fmt.Println(warning)
}
fmt.Printf("Note that in case of a name conflict, the file in the target directory will be overwritten\n\n")
warnings = warnings[:0]
}
number, newDir := checkUserResponse(question, len(sortingDirectories), reader)
if newDir != "" {
if i := slices.Index(sortingDirectories, newDir); i != -1 {
number = i
} else {
err := createNewDir(newDir)
if err != nil {
warnings = append(warnings, err.Error())
}
sortingDirectories = append(sortingDirectories, newDir)
question = buildQuestion(sortingDirectories)
number = len(sortingDirectories)
}
} else if number == 0 {
continue
}
moveFileOrFail(source, sortingDirectories[number-1], pictureName)
}
screen.Clear()
screen.MoveTopLeft()
fmt.Println("all done")
}
func createNewDir(newDir string) error {
err := os.Mkdir(newDir, 0750)
if os.IsExist(err) {
return fmt.Errorf("warning: directory %s already exists, continuing without an error", newDir)
} else if err != nil {
log.Fatalf("failed to create %s\n%v", newDir, err)
}
return nil
}
func openImageOrFail(source, pictureName string) *os.File {
f, err := os.Open(path.Join(source, pictureName))
if err != nil {
log.Fatalf("failed to open %s\n%v", pictureName, err)
}
return f
}
func decodeImageOrFail(f *os.File) image.Image {
img, _, err := image.Decode(f)
if err != nil {
log.Fatalf("failed to decode %s\n%v", f.Name(), err)
}
return img
}
func checkUserResponse(question string, numberOfOptions int, reader *bufio.Reader) (int, string) {
for {
fmt.Println(question)
input, err := reader.ReadString('\n')
if err != nil {
// Probably just Ctrl+D
os.Exit(0)
}
if input == "\n" {
return 0, ""
}
input = strings.TrimSpace(input)
number, err := strconv.Atoi(input)
if err != nil {
return 0, input
}
if number <= 0 || number > numberOfOptions {
fmt.Printf("Please enter a number between 1 and %d\n", numberOfOptions)
continue
}
return number, ""
}
}
func moveFileOrFail(source, target, pictureName string) {
err := os.Rename(path.Join(source, pictureName), path.Join(target, pictureName))
if err != nil {
log.Fatalf("failed to move %s\n%v", pictureName, err)
}
}