Fix bug for empty directories

.vscode/launch.json

@@ -4,19 +4,12 @@
     // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
-        {
-            "name": "Launch file",
-            "type": "go",
-            "request": "launch",
-            "mode": "debug",
-            "program": "${file}"
-        },
         {
             "name": "Attach to Process",
             "type": "go",
             "request": "attach",
             "mode": "local",
-            "processId": 3667371
-        },
+            "processId": 585791
+        }
     ]
 }

cmd/fastgallery/main.go

@@ -449,7 +449,7 @@ func createHTML(subdirectories []directory, files []file, sourceRootDir string,
 	if len(files) > 0 {
 		rootEscape = getHTMLRootPathRelative(files[0].relPath)
 	} else {
-		rootEscape = getHTMLRootPathRelative(subdirectories[0].relPath)
+		rootEscape = getHTMLRootPathRelative(subdirectories[0].relPath + "/")
 	}
 	var data htmlData
 
@@ -963,10 +963,10 @@ func main() {
 			defer vips.Shutdown()
 		}
 
-		fullsizeImageJobs := make(chan job, 10000)
-		thumbnailImageJobs := make(chan job, 10000)
-		fullsizeVideoJobs := make(chan job, 10000)
-		thumbnailVideoJobs := make(chan job, 10000)
+		fullsizeImageJobs := make(chan job, 100000)
+		thumbnailImageJobs := make(chan job, 100000)
+		fullsizeVideoJobs := make(chan job, 100000)
+		thumbnailVideoJobs := make(chan job, 100000)
 
 		var wg sync.WaitGroup