za3k / qr-backup

Paper backup of files using QR codes
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reduce severity of verification warning and clarify warning #52

Closed anarcat closed 1 year ago

anarcat commented 1 year ago

I was surprised to see this message when I tried qr-backup. I thought the entire process failed because there was this message (and only it):

CRITICAL: Skipping digital restore verification, because 'convert' is not available. Debian/Ubuntu forbid PDF conversion using imagemagick. More information at: https://github.com/za3k/qr-backup/tree/master/docs

Normally, critical errors are irrevocable that basically stop the entire process. And indeed, in other places where we use logging.fatal in the program, we immediately exit.

So let's turn this into a WARNING instead.

I've also considered explicitely mentioning that the file was correctly converted, but this seems to me like a message that should come before, if --verbose is enabled. Unfortunately, --verbose looks more like a --debug to me and outputs way too much information. :) So I'm not sure how to fix that particular limitation (that we don't tell the user the file was correctly generated).

We also indicate more clearly which part of the documentation we're refering to here.

Finally, also remove the explicit reference to Debian/Ubuntu, as that seriously limits the scope of the warning. In fact, any Debian derivative (not just Ubuntu!) is going to have this problem, and I believe other distributions (e.g. Fedora, Red Hat) have implemented similar workarounds.

za3k commented 1 year ago

Looks good. Could you please run the tests?