Option to avoid spaces in generated properties

[aloifolia]

Please describe your feature request.
Currently, when the output is formatted as properties, the equality signs are separated by a single space from both keys and values. Kustomize supports properties files. However, it is not able to process them if they have such whitespace around the equality characters.

I'd like to be able to instruct yq to generate a more compact properties format that is compatible with Kustomize.
A clear and concise description of what the request is and what it would solve.

Describe the solution you'd like
Given a file application.properties:

foo=bar

And we run a command:

yq --no-spaces '.baz="nix"' application.properties 

it could output

foo=bar
baz=nix

Describe alternatives you've considered
At the moment, I use sed to remove the whitespace:

yq '.baz="nix"' application.properties | sed 's/\([^ ]*\) = /\1=/g'

[mikefarah]

yq uses https://github.com/magiconair/properties to decode/encode property files and it currently does not expose an interface to let me control the whitespace.

For now, you could do a custom format, I've just added a new recipe to show how: https://mikefarah.gitbook.io/yq/recipes#export-as-environment-variables-script-or-any-custom-format.

That said, you're sed expression is simpler (though it could have issues if you had a quoted " = " as a value somewhere..

[jakub-bochenski]

It's not apparent from the recipe how to handle lists to output them like the -o=props does. Would be nice to add it.

Besides the recipe doesn't work as described in #1932

[jakub-bochenski]

Also I don't think this recipe approach will ever be able to handle comments

[jakub-bochenski]

Also I don't think this recipe approach will ever be able to handle comments

I guess it could after all, but the recipe gets really complex :(

[mikefarah]

Fixed in 4.42.1