From 08f6317bebb3ec566a70036f1268211ee4ccc6b1 Mon Sep 17 00:00:00 2001
From: inorichi <len@kanade.eu>
Date: Sat, 13 Jan 2018 11:47:04 +0100
Subject: [PATCH] Add error handling to migrations

---
 .../kanade/tachiyomi/ui/migration/MigrationPresenter.kt   | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/migration/MigrationPresenter.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/migration/MigrationPresenter.kt
index 419e571a6..c17fbee8b 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/migration/MigrationPresenter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/migration/MigrationPresenter.kt
@@ -85,7 +85,9 @@ class MigrationPresenter(
         state = state.copy(isReplacingManga = true)
 
         Observable.defer { source.fetchChapterList(manga) }
+                .onErrorReturn { emptyList() }
                 .doOnNext { migrateMangaInternal(source, it, prevManga, manga, replace) }
+                .onErrorReturn { emptyList() }
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
                 .doOnUnsubscribe { state = state.copy(isReplacingManga = false) }
@@ -98,7 +100,11 @@ class MigrationPresenter(
         db.inTransaction {
             // Update chapters read
             if (preferences.migrateChapters().getOrDefault()) {
-                syncChaptersWithSource(db, sourceChapters, manga, source)
+                try {
+                    syncChaptersWithSource(db, sourceChapters, manga, source)
+                } catch (e: Exception) {
+                    // Worst case, chapters won't be synced
+                }
 
                 val prevMangaChapters = db.getChapters(prevManga).executeAsBlocking()
                 val maxChapterRead = prevMangaChapters.filter { it.read }