Make app compliant with F-Droid policy

[mimi89999]

It would be nice to have this app in F-Droid. However, to be added, the app needs to be 100% free (including dependencies). I noticed the non-free com.google.gms library as a requirement. If it could be removed, it would be great.

[xdk78]

Google GMS is used to making app better:

• logs
• analytics
• notifications @shymmq he is leader and he knows much more.

[shymmq]

@mimi89999 , unfortunately, this would mean removing real-time notifications which are one of the core components of our app

[mimi89999]

There could be 2 variants of this app: one free for F-Droid and one with notifications.

As siacs/conversations is doing.

[mimi89999]

I can make 2 productFlavors. How to call them?

[mimi89999]

Ah, the foreign repo https://oss.sonatype.org/content/repositories/snapshots/ also has to be removed. That isn't a problem since eu.davidea:flexible-adapter:5.0.0-rc1 is also in the standard repo.

[mimi89999]

But is needed for org.immutables:value:2.4.4-SNAPSHOT :P

[shymmq]

@rowysock ?

[rowysock]

We need immutables in version 2.4.4 because of this issue: https://github.com/immutables/immutables/issues/546. Maybe let's just wiat for the next immutables relese and then we could remove https://oss.sonatype.org/content/repositories/snapshots/ ?

[mimi89999]

@rowysock Isn't it immutables/immutables#546

[rowysock]

@mimi89999 Yes, actually it is

[mimi89999]

@shymmq please git tag all future releases with the same label as the app version name. It will allow F-Droid to automatically detect updates.