Expose exceptions thrown during caching of imported files

[lukstbit]

Purpose / Description

We have a lot of reports in the form of:

java.lang.RuntimeException: Error importing apkg file
    at com.ichi2.utils.ImportUtils$FileImporter.handleContentProviderFile(ImportUtils.java:211)
    at com.ichi2.utils.ImportUtils$FileImporter.handleFileImportInternal(ImportUtils.java:128)
    at com.ichi2.utils.ImportUtils$FileImporter.handleFileImport(ImportUtils.java:117)
    at com.ichi2.utils.ImportUtils.handleFileImport(ImportUtils.java:61)

coming from:

https://github.com/ankidroid/Anki-Android/blob/f4b08261418fca31293629a55d341b861c0fbb73/AnkiDroid/src/main/java/com/ichi2/utils/ImportUtils.kt#L203-L211

which are a front for problems in the ImportUtils.copyToCache() method:

https://github.com/ankidroid/Anki-Android/blob/f4b08261418fca31293629a55d341b861c0fbb73/AnkiDroid/src/main/java/com/ichi2/utils/ImportUtils.kt#L306-L327

This PR "extracts" any exception happening in that method and sends it to acra instead of the current useless RuntimeException we are sending. Having the real exceptions could helps us to see what's really happening.

Checklist

• [x] You have a descriptive commit message with a short title (first line, max 50 chars).
• [x] You have commented your code, particularly in hard-to-understand areas
• [x] You have performed a self-review of your own code
• [ ] UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• [ ] UI Changes: You have tested your change using the Google Accessibility Scanner

[lukstbit]

It does expose the filenames. I removed the exceptions instances and instead added some messages about what is happening as additional info to the report.

[mikehardy]

Huh. Took one of these on 2.19.2 and it looks like:

11-19 17:26:41.861 E/AnkiDroid(18162): java.io.FileNotFoundException: open failed: ENOENT (No such file or directory)
11-19 17:26:41.861 E/AnkiDroid(18162):  at android.os.ParcelFileDescriptor.openInternal(ParcelFileDescriptor.java:351)
11-19 17:26:41.861 E/AnkiDroid(18162):  at android.os.ParcelFileDescriptor.open(ParcelFileDescriptor.java:230)
11-19 17:26:41.861 E/AnkiDroid(18162):  at androidx.core.content.FileProvider.openFile(SourceFile:84)
11-19 17:26:41.861 E/AnkiDroid(18162):  at android.content.ContentProvider.openAssetFile(ContentProvider.java:2310)
11-19 17:26:41.861 E/AnkiDroid(18162):  at android.content.ContentProvider.openTypedAssetFile(ContentProvider.java:2488)
11-19 17:26:41.861 E/AnkiDroid(18162):  at android.content.ContentProvider.openTypedAssetFile(ContentProvider.java:2555)
11-19 17:26:41.861 E/AnkiDroid(18162):  at android.content.ContentProvider$Transport.openTypedAssetFile(ContentProvider.java:672)
11-19 17:26:41.861 E/AnkiDroid(18162):  at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:2043)
11-19 17:26:41.861 E/AnkiDroid(18162):  at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1858)
11-19 17:26:41.861 E/AnkiDroid(18162):  at android.content.ContentResolver.openInputStream(ContentResolver.java:1528)

FileNotFoundException 🤔