Using file storage for config storage tree causes some problems

[gschueler]

Describe the bug

If the config storage tree is configured to use 'file' provider, several errors occur in the app. such as "not a directory path: acls" or "not a directory path: projects/myproject/acls".

org.rundeck.storage.api.StorageException: not a directory path: acls
	at org.rundeck.storage.api.StorageException.listException(StorageException.java:85)
	at org.rundeck.storage.data.file.FileTree.filterResources(FileTree.java:166)
	at org.rundeck.storage.data.file.FileTree.listDirectory(FileTree.java:120)
	at org.rundeck.storage.impl.DelegateTree.listDirectory(DelegateTree.java:71)
	at org.rundeck.storage.impl.DelegateTree.listDirectory(DelegateTree.java:71)
	at org.rundeck.storage.conf.ListenerTree.listDirectory(ListenerTree.java:97)
	at org.rundeck.storage.impl.DelegateTree.listDirectory(DelegateTree.java:71)
	at org.rundeck.storage.impl.DelegateTree.listDirectory(DelegateTree.java:71)
	at org.rundeck.storage.impl.StringToPathTree.listDirectory(StringToPathTree.java:66)
	at rundeck.services.ConfigStorageService.$tt__listDirPaths(ConfigStorageService.groovy:71)

Additionally, saving a new project config file fails with "NullPointerException" "Cannot invoke method propertyNames() on null object"

Caused by: java.lang.NullPointerException: Cannot invoke method propertyNames() on null object
	at rundeck.services.ProjectManagerService.mergeProperties(ProjectManagerService.groovy:603)
	at rundeck.services.ProjectManagerService.$tt__mergeProjectProperties(ProjectManagerService.groovy:588)
	at grails.gorm.transactions.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:94)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
	at grails.gorm.transactions.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:91)
	at rundeck.services.ProjectManagerService.$tt__mergeProjectProperties(ProjectManagerService.groovy:565)
	at grails.gorm.transactions.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:94)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
	at grails.gorm.transactions.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:91)
	at com.dtolabs.rundeck.server.projects.RundeckProject.mergeProjectProperties(RundeckProject.java:82)
	at rundeck.services.FrameworkService.updateFrameworkProjectConfig(FrameworkService.groovy:249)
	at rundeck.controllers.FrameworkController.saveProject(FrameworkController.groovy:1215)
	... 83 common frames omitted

My Rundeck detail

• Rundeck version: 3.0

To Reproduce

Setup config storage tree using file provider in rundeck-config:

rundeck.config.storage.provider.1.type=file
rundeck.config.storage.provider.1.path=/
rundeck.config.storage.provider.1.config.baseDir=/tmp/rd-store-configs

Expected behavior

Rundeck works as before, (excepting missing acls/project configs)
Additional context

Creating some missing dirs allows certain pages to load, but is not a very workable workaround.