How is "Internal two way sync" supposed to work?

📱 Desktop & mobile clients 🤖 Android
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1

Hi all,

I’m using nextcloud version 3.30.6 downloaded via F-Droid Store on my GrapheneOS phone. I wanted to use the “Two way sync” function, but I’m not sure, if its not working or I do something wrong or I even misunderstand something (I couldn’t find any documentation to that function). So whats exactly happening:

I’m using the App “Signal”. For the Backups I chose the folder (on my phone) /Android/media/com.nextcloud.client/nextcloud/[username]@[server]/Signal. The Backups are done daily in that folder.
Additionally I enabled “Internal two way sync” in my Nextcloud App. The “Singal” Folder is also shown in there (as I ticked the “sync” Checkbox on the Folder-Settings in my Nextcloud App).
Signal only stores two backups (today and yesterday). If a new one will done, the oldest one will be deleted, so that there are only 2 Backups in the folder.

What I expect: If a Backup will be deleted in that folder by Signal, it will also be deleted in Nextcloud. If a new Backup will be created by Signal it will also be automatically uploaded to Nextcloud

What happens: Nothing. I also try deinstall/installing the NC App. I also tryed to sync manually via clicking on “Sync” on the Nextcloud Signal Folder. But nothing happens.

So my question: How is it supposed to work? Where are my mistakes?

Thank you really much in advance!

EDIT: Can my problem be related to that bug? BugFix - NPE internalFolderSyncTimestamp & File Existence Check by alperozturk96 · Pull Request #13612 · nextcloud/android · GitHub Unfortunately I can’t find the bug itself but by reading the headline it sounds a bit like it could be related.

2

I have the same problem. The sync of a folder don’t work. I am able to download only files.

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I found this comment in the documentation Desktop and mobile synchronization — Nextcloud latest User Manual latest documentation

“Unfortunately, 2-way-sync, a.k.a bidirectional sync, isn’t fully implemented in the Android client yet. See this issue on GitHub for the current feature’s status.”

NOTE if you also want this feature, leave a :+1: on the first post in the github link above. (Do not comment “I need this too” or similar on github please!)

5

We should implement something called Auto download first… self explanatory right? Haha

6

I had exactly the same usecase as you: uploading my Signal backups to Nextcloud.
Two way sync did not work for me so I built the following workaround.

  1. On your Android phone add the Signal backup folder as an normal auto upload folder
  2. Install the auto tagging app Files automated tagging - Apps - App Store - Nextcloud
  3. Install the retention app Retention - Apps - App Store - Nextcloud
  4. On your Nextcloud website in Settings > Administrator Settings > Flow add the following config to automatically tag newly uploaded backup files and delete them after a certain period.
    image
    image1868Ă—1013 113 KB

Here is the regex to match new files:

/^signal-\d\d\d\d-\d\d-\d\d-\d\d-\d\d-\d\d\.backup$/