feat: clear repo cache on stack change

plugins/repo/.gitignore

@@ -3,3 +3,4 @@
 /triggers/*
 /triggers
 /pre-delete
+/post-stack-set

plugins/repo/Makefile

@@ -1,5 +1,5 @@
 SUBCOMMANDS = subcommands/gc subcommands/purge-cache
-TRIGGERS = triggers/pre-delete
+TRIGGERS = triggers/post-stack-set triggers/pre-delete
 BUILD = commands subcommands triggers
 PLUGIN_NAME = repo
 

plugins/repo/src/triggers/triggers.go

@@ -18,6 +18,9 @@ func main() {
 
 	var err error
 	switch trigger {
+	case "post-stack-set":
+		appName := flag.Arg(0)
+		err = repo.PurgeCache(appName)
 	case "pre-delete":
 		appName := flag.Arg(0)
 		err = repo.PurgeCache(appName)