[feature request] Process input from file/standard input

[m-ueberall]

In order to replace existing QR code generators, it would be helpful to be able to process input from a provided file and/or standard input as well (even though it's possible to store said input in an environment variable first, of course).

[heuer]

Please provide an example which works with existing QR Code generators and which does not work with Segno.

[1oh1]

Is there a way to read input from files? For instance, cat input.txt | segno?

I am able to do this with python-qrcode (eg. cat input.txt | qr)

I tried this, which works but doesn't seem to encode newline characters into the QR code.

segno `cat input.txt`

[m-ueberall]

I tried this, which works but doesn't seem to encode newline characters into the QR code.

segno `cat input.txt`

@1oh1 As a quick workaround, try segno "$(cat 'input.txt')" instead. The double quotes will ensure that the entire file contents are passed as a single argument, including newline characters (tested with Segno v1.4.1; of course, you can use backticks as well).

[rhyw]

Had a small patch that allows piping: https://github.com/rhyw/segno/pull/1

Broke some tests though. Haven't yet had much time to fix.

[heuer]

Had a small patch that allows piping: rhyw#1

Broke some tests though. Haven't yet had much time to fix.

Thanks, I'll take a look