Restructure go project (#2356)

* Move main to cmd
* Move api to internal
* Move logger and manager to internal
* Move shell hiding code to separate package
* Decouple job from desktop and utils
* Decouple session from config
* Move static into internal
* Decouple config from dlna
* Move desktop to internal
* Move dlna to internal
* Decouple remaining packages from config
* Move config into internal
* Move jsonschema and paths to models
* Make ffmpeg functions private
* Move file utility methods into fsutil package
* Move symwalk into fsutil
* Move single-use util functions into client package
* Move slice functions to separate packages
* Add env var to suppress windowsgui arg
* Move hash functions into separate package
* Move identify to internal
* Move autotag to internal
* Touch UI when generating backend

internal/manager/image.go

@@ -0,0 +1,59 @@
+package manager
+
+import (
+	"archive/zip"
+	"strings"
+
+	"github.com/stashapp/stash/internal/manager/config"
+	"github.com/stashapp/stash/pkg/file"
+
+	"github.com/stashapp/stash/pkg/logger"
+)
+
+func walkGalleryZip(path string, walkFunc func(file *zip.File) error) error {
+	readCloser, err := zip.OpenReader(path)
+	if err != nil {
+		return err
+	}
+	defer readCloser.Close()
+
+	excludeImgRegex := generateRegexps(config.GetInstance().GetImageExcludes())
+
+	for _, f := range readCloser.File {
+		if f.FileInfo().IsDir() {
+			continue
+		}
+
+		if strings.Contains(f.Name, "__MACOSX") {
+			continue
+		}
+
+		if !isImage(f.Name) {
+			continue
+		}
+
+		if matchFileRegex(file.ZipFile(path, f).Path(), excludeImgRegex) {
+			continue
+		}
+
+		err := walkFunc(f)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func countImagesInZip(path string) int {
+	ret := 0
+	err := walkGalleryZip(path, func(file *zip.File) error {
+		ret++
+		return nil
+	})
+	if err != nil {
+		logger.Warnf("Error while walking gallery zip: %v", err)
+	}
+
+	return ret
+}