[BUG/Feature request] 0 byte .json files - randomly occurring - please test for them

[Adrian Miller]

Recently i have had a few migrate backups fail

Like tonight, with errors like:

Zip Read Errors

Errors

PARSE_APP_MTD: [/sdcard/Migrate/Backup_/Part-x_of_x.zip]
.json - end of input at character of

My current workaround:

I highly recommend checking your backups after creation by launching a terminal app, changing to the Migrate backup folder (/sdcard/Migrate/Backup) and pasting and running the following command:

for file in *.zip; do echo $file && unzip -l "$file" | awk '{print $1 "\t" $4}' | grep 'json' | grep '^0' | grep -v '/' ; done

It will show you any 0 byte .json files and the zip in which theyre in

If you have access to a PC and a GUI zip client, you can then remove the 0 byte files from the zips

OR

you can manually extract the zips to the usual manual restore folder (/data/local/migrate_cache), by opening a terminal, navigating to /sdcard/Migrate/Backup, and then:

for file in *.zip; do unzip "$file" -d "/data/local/tmp/migrate_cache"; done

then to remove any 0 byte .json files:

find /data/local/tmp/migrate_cache -name '*.json' -maxdepth 1 -size 0c -print0 | xargs -0 rm

And then Restore via Migrate Helper

Dont ask me why this randomly occurs.....im just suggesting ways to check and work around it. I ended up having to only reinstall 4 apps from scratch in this latest round of weirdness....thankfully for years ive only had a handful of issues with Migrate