Add plugin tasks (#651)

pkg/manager/manager.go

@@ -10,6 +10,7 @@ import (
 	"github.com/stashapp/stash/pkg/logger"
 	"github.com/stashapp/stash/pkg/manager/config"
 	"github.com/stashapp/stash/pkg/manager/paths"
+	"github.com/stashapp/stash/pkg/plugin"
 	"github.com/stashapp/stash/pkg/scraper"
 	"github.com/stashapp/stash/pkg/utils"
 )
@@ -22,6 +23,7 @@ type singleton struct {
 	FFMPEGPath  string
 	FFProbePath string
 
+	PluginCache  *plugin.Cache
 	ScraperCache *scraper.Cache
 }
 
@@ -51,6 +53,7 @@ func Initialize() *singleton {
 			Paths:  paths.NewPaths(),
 			JSON:   &jsonUtils{},
 
+			PluginCache:  initPluginCache(),
 			ScraperCache: initScraperCache(),
 		}
 
@@ -88,8 +91,9 @@ func initConfig() {
 	// Set generated to the metadata path for backwards compat
 	viper.SetDefault(config.Generated, viper.GetString(config.Metadata))
 
-	// Set default scrapers path
+	// Set default scrapers and plugins paths
 	viper.SetDefault(config.ScrapersPath, config.GetDefaultScrapersPath())
+	viper.SetDefault(config.PluginsPath, config.GetDefaultPluginsPath())
 
 	// Disabling config watching due to race condition issue
 	// See: https://github.com/spf13/viper/issues/174
@@ -153,6 +157,16 @@ func initLog() {
 	logger.Init(config.GetLogFile(), config.GetLogOut(), config.GetLogLevel())
 }
 
+func initPluginCache() *plugin.Cache {
+	ret, err := plugin.NewCache(config.GetPluginsPath())
+
+	if err != nil {
+		logger.Errorf("Error reading plugin configs: %s", err.Error())
+	}
+
+	return ret
+}
+
 // initScraperCache initializes a new scraper cache and returns it.
 func initScraperCache() *scraper.Cache {
 	scraperConfig := scraper.GlobalConfig{