Update segment cleanup to support object storage (#2876)

* Add support for S3 cleanup + standardize firing cleanup. Closes #2646

* fix: manually fix post-merge

core/transcoder/hlsFilesystemCleanup.go

@@ -1,78 +0,0 @@
-package transcoder
-
-import (
-	log "github.com/sirupsen/logrus"
-
-	"os"
-	"path/filepath"
-	"sort"
-
-	"github.com/owncast/owncast/core/data"
-)
-
-// CleanupOldContent will delete old files from the private dir that are no longer being referenced
-// in the stream.
-func CleanupOldContent(baseDirectory string) {
-	// Determine how many files we should keep on disk
-	maxNumber := data.GetStreamLatencyLevel().SegmentCount
-	buffer := 10
-
-	files, err := getAllFilesRecursive(baseDirectory)
-	if err != nil {
-		log.Debugln("Unable to cleanup old video files", err)
-		return
-	}
-
-	// Delete old private HLS files on disk
-	for directory := range files {
-		files := files[directory]
-		if len(files) < maxNumber+buffer {
-			continue
-		}
-
-		filesToDelete := files[maxNumber+buffer:]
-		log.Traceln("Deleting", len(filesToDelete), "old files from", baseDirectory, "for video variant", directory)
-
-		for _, file := range filesToDelete {
-			fileToDelete := filepath.Join(baseDirectory, directory, file.Name())
-			err := os.Remove(fileToDelete)
-			if err != nil {
-				log.Debugln(err)
-			}
-		}
-	}
-}
-
-func getAllFilesRecursive(baseDirectory string) (map[string][]os.FileInfo, error) {
-	var files = make(map[string][]os.FileInfo)
-
-	var directory string
-	err := filepath.Walk(baseDirectory, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-
-		if info.IsDir() {
-			directory = info.Name()
-		}
-
-		if filepath.Ext(info.Name()) == ".ts" {
-			files[directory] = append(files[directory], info)
-		}
-
-		return nil
-	})
-
-	if err != nil {
-		return nil, err
-	}
-
-	// Sort by date so we can delete old files
-	for directory := range files {
-		sort.Slice(files[directory], func(i, j int) bool {
-			return files[directory][i].ModTime().UnixNano() > files[directory][j].ModTime().UnixNano()
-		})
-	}
-
-	return files, nil
-}