Pass context to get WorkManager instance

app/src/main/java/eu/kanade/tachiyomi/Migrations.kt

@@ -23,11 +23,11 @@ object Migrations {
             if (oldVersion == 0) return false
 
             if (oldVersion < 14) {
-                // Restore jobs after upgrading to evernote's job scheduler.
+                // Restore jobs after upgrading to Evernote's job scheduler.
                 if (BuildConfig.INCLUDE_UPDATER && preferences.automaticUpdates()) {
-                    UpdaterJob.setupTask()
+                    UpdaterJob.setupTask(context)
                 }
-                LibraryUpdateJob.setupTask()
+                LibraryUpdateJob.setupTask(context)
             }
             if (oldVersion < 15) {
                 // Delete internal chapter cache dir.
@@ -39,7 +39,7 @@ object Migrations {
                 if (oldDir.exists()) {
                     val destDir = context.getExternalFilesDir("covers")
                     if (destDir != null) {
-                        oldDir.listFiles().forEach {
+                        oldDir.listFiles()?.forEach {
                             it.renameTo(File(destDir, it.name))
                         }
                     }

app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreatorJob.kt

@@ -28,7 +28,7 @@ class BackupCreatorJob(private val context: Context, workerParams: WorkerParamet
     companion object {
         const val TAG = "BackupCreator"
 
-        fun setupTask(prefInterval: Int? = null) {
+        fun setupTask(context: Context, prefInterval: Int? = null) {
             val preferences = Injekt.get<PreferencesHelper>()
             val interval = prefInterval ?: preferences.backupInterval().getOrDefault()
             if (interval > 0) {
@@ -38,9 +38,9 @@ class BackupCreatorJob(private val context: Context, workerParams: WorkerParamet
                         .addTag(TAG)
                         .build()
 
-                WorkManager.getInstance().enqueueUniquePeriodicWork(TAG, ExistingPeriodicWorkPolicy.REPLACE, request)
+                WorkManager.getInstance(context).enqueueUniquePeriodicWork(TAG, ExistingPeriodicWorkPolicy.REPLACE, request)
             } else {
-                WorkManager.getInstance().cancelAllWorkByTag(TAG)
+                WorkManager.getInstance(context).cancelAllWorkByTag(TAG)
             }
         }
     }

app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateJob.kt

@@ -25,7 +25,7 @@ class LibraryUpdateJob(private val context: Context, workerParams: WorkerParamet
     companion object {
         const val TAG = "LibraryUpdate"
 
-        fun setupTask(prefInterval: Int? = null) {
+        fun setupTask(context: Context, prefInterval: Int? = null) {
             val preferences = Injekt.get<PreferencesHelper>()
             val interval = prefInterval ?: preferences.libraryUpdateInterval().getOrDefault()
             if (interval > 0) {
@@ -48,9 +48,9 @@ class LibraryUpdateJob(private val context: Context, workerParams: WorkerParamet
                         .setConstraints(constraints)
                         .build()
 
-                WorkManager.getInstance().enqueueUniquePeriodicWork(TAG, ExistingPeriodicWorkPolicy.REPLACE, request)
+                WorkManager.getInstance(context).enqueueUniquePeriodicWork(TAG, ExistingPeriodicWorkPolicy.REPLACE, request)
             } else {
-                WorkManager.getInstance().cancelAllWorkByTag(TAG)
+                WorkManager.getInstance(context).cancelAllWorkByTag(TAG)
             }
         }
     }

app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdaterJob.kt

@@ -57,7 +57,7 @@ class UpdaterJob(private val context: Context, workerParams: WorkerParameters) :
     companion object {
         const val TAG = "UpdateChecker"
 
-        fun setupTask() {
+        fun setupTask(context: Context) {
             val constraints = Constraints.Builder()
                     .setRequiredNetworkType(NetworkType.CONNECTED)
                     .build()
@@ -69,11 +69,11 @@ class UpdaterJob(private val context: Context, workerParams: WorkerParameters) :
                     .setConstraints(constraints)
                     .build()
 
-            WorkManager.getInstance().enqueueUniquePeriodicWork(TAG, ExistingPeriodicWorkPolicy.REPLACE, request)
+            WorkManager.getInstance(context).enqueueUniquePeriodicWork(TAG, ExistingPeriodicWorkPolicy.REPLACE, request)
         }
 
-        fun cancelTask() {
-            WorkManager.getInstance().cancelAllWorkByTag(TAG)
+        fun cancelTask(context: Context) {
+            WorkManager.getInstance(context).cancelAllWorkByTag(TAG)
         }
     }
 }

app/src/main/java/eu/kanade/tachiyomi/ui/more/AboutController.kt

@@ -62,9 +62,9 @@ class AboutController : SettingsController() {
                 onChange { newValue ->
                     val checked = newValue as Boolean
                     if (checked) {
-                        UpdaterJob.setupTask()
+                        UpdaterJob.setupTask(context)
                     } else {
-                        UpdaterJob.cancelTask()
+                        UpdaterJob.cancelTask(context)
                     }
                     true
                 }

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsBackupController.kt

@@ -106,7 +106,7 @@ class SettingsBackupController : SettingsController() {
 
                 onChange { newValue ->
                     val interval = (newValue as String).toInt()
-                    BackupCreatorJob.setupTask(interval)
+                    BackupCreatorJob.setupTask(context, interval)
                     true
                 }
             }

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsLibraryController.kt

@@ -87,7 +87,7 @@ class SettingsLibraryController : SettingsController() {
 
                 onChange { newValue ->
                     val interval = (newValue as String).toInt()
-                    LibraryUpdateJob.setupTask(interval)
+                    LibraryUpdateJob.setupTask(context, interval)
                     true
                 }
             }
@@ -103,7 +103,7 @@ class SettingsLibraryController : SettingsController() {
 
                 onChange {
                     // Post to event looper to allow the preference to be updated.
-                    Handler().post { LibraryUpdateJob.setupTask() }
+                    Handler().post { LibraryUpdateJob.setupTask(context) }
                     true
                 }
             }