Compress split apks to save space

[Gia90]

Guidelines

• I have read the FAQ and it doesn't cover my request.
• I have searched the issue tracker for open and closed issues that are similar to the feature request I want to file, without success.
• I'm on the latest version.
• I'm not using a test build (alpha/beta/release-candidate).
• This issue contains only one feature request.

Problem Description

NeoBackup backup files are be taking more space than needed, because compression seems to be applied only to apps data and not to the split apks.

For example, here you can see a size comparison for the backup files generated for the Google maps app by NeoBackup and another, closed source backup app.

NeoBackup:

 64M base.apk
1,8M data.tar.gz.enc
 32M split_config.arm64_v8a.apk
1,1M split_config.en.apk
1,6M split_config.xxhdpi.apk

Another backup app:

 64M com.google.android.apps.maps.app
1,8M com.google.android.apps.maps.dat
1,1M com.google.android.apps.maps.extdat
 16M com.google.android.apps.maps.splits
4,0K com.google.android.apps.maps.xml

As you can see, the three 'split_config.*.apk' files generated by NeoBackup take more than double the space compared to the compressed file "com.google.android.apps.maps.splits".

Proposed Solution

Apply compression to all the backup files whose size can be reduced, not only to the app data.

Alternatives Considered

No response

Relevant information

No response