Is it possible to pass flags to envsubst?

[embee1981]

Hi all

I'm looking to use the -no-unset flag that envsubst supports at https://github.com/a8m/envsubst#imposing-restrictions

Is this possible, something like?

yq '(.. | select(tag == "!!str")) |= envsubst -no-unset' configFile.yaml

I've tried --no-unset, -no-unset and no-unset after the envsubst but its not happy with any of these. Just checking if I'm invoking wrong or this is something that's not supported.

I'm playing with files that use environment variables and it would be handy to use this feature since its a nifty enhancement over what's available via the standard command line

[mikefarah]

Nah its not yet supported - moving this to an issue to track

[embee1981]

Ahh oki. Thanks Mike

[ngirard]

I think it's possible now, via

yq '(.. | select(tag == "!!str")) |= envsubst(nu) configFile.yaml

[mikefarah]

Yep - you are right! forgot to update this discussion, see https://mikefarah.gitbook.io/yq/operators/env-variable-operators#envsubst-options for all the options :)