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

pkg/models/paths/paths_generated.go

@@ -0,0 +1,74 @@
+package paths
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/stashapp/stash/pkg/fsutil"
+	"github.com/stashapp/stash/pkg/logger"
+)
+
+const thumbDirDepth int = 2
+const thumbDirLength int = 2 // thumbDirDepth * thumbDirLength must be smaller than the length of checksum
+
+type generatedPaths struct {
+	Screenshots        string
+	Thumbnails         string
+	Vtt                string
+	Markers            string
+	Transcodes         string
+	Downloads          string
+	Tmp                string
+	InteractiveHeatmap string
+}
+
+func newGeneratedPaths(path string) *generatedPaths {
+	gp := generatedPaths{}
+	gp.Screenshots = filepath.Join(path, "screenshots")
+	gp.Thumbnails = filepath.Join(path, "thumbnails")
+	gp.Vtt = filepath.Join(path, "vtt")
+	gp.Markers = filepath.Join(path, "markers")
+	gp.Transcodes = filepath.Join(path, "transcodes")
+	gp.Downloads = filepath.Join(path, "download_stage")
+	gp.Tmp = filepath.Join(path, "tmp")
+	gp.InteractiveHeatmap = filepath.Join(path, "interactive_heatmaps")
+	return &gp
+}
+
+func (gp *generatedPaths) GetTmpPath(fileName string) string {
+	return filepath.Join(gp.Tmp, fileName)
+}
+
+func (gp *generatedPaths) EnsureTmpDir() error {
+	return fsutil.EnsureDir(gp.Tmp)
+}
+
+func (gp *generatedPaths) EmptyTmpDir() error {
+	return fsutil.EmptyDir(gp.Tmp)
+}
+
+func (gp *generatedPaths) RemoveTmpDir() error {
+	return fsutil.RemoveDir(gp.Tmp)
+}
+
+func (gp *generatedPaths) TempDir(pattern string) (string, error) {
+	if err := gp.EnsureTmpDir(); err != nil {
+		logger.Warnf("Could not ensure existence of a temporary directory: %v", err)
+	}
+	ret, err := os.MkdirTemp(gp.Tmp, pattern)
+	if err != nil {
+		return "", err
+	}
+
+	if err = fsutil.EmptyDir(ret); err != nil {
+		logger.Warnf("could not recursively empty dir: %v", err)
+	}
+
+	return ret, nil
+}
+
+func (gp *generatedPaths) GetThumbnailPath(checksum string, width int) string {
+	fname := fmt.Sprintf("%s_%d.jpg", checksum, width)
+	return filepath.Join(gp.Thumbnails, fsutil.GetIntraDir(checksum, thumbDirDepth, thumbDirLength), fname)
+}