Make formatting possible

[kastoestoramadus]

Allow the config library to be used as a formatter.

Rendering options added:

• don't reorder entries,
• control indentation,
• default assign operator,

#693

Let me know if such improvement will be accept to merge. For now I've seen your lib is in maintenance mode.

[lightbend-cla-validator]

Hi @kastoestoramadus,

Thank you for your contribution! We really value the time you've taken to put this together.

Before we proceed with reviewing this pull request, please sign the Akka Contributors License Agreement:

https://www.lightbend.com/contribute/cla

[ennru]

Hi @kastoestoramadus,
Thank you for suggesting this quite useful feature and it looks indeed less intrusive than I would have expected. Are you willing to take this to a full implementation?

[kastoestoramadus]

I don't know. You've responded after 5 months :/ .
I've already implemented it in sconfig alternative repo with more features.

[ennru]

I understand your frustration. We've been a bit neglectful of this repository and are also cautious about making changes.
Thank you again for suggesting it.

[ennru]

[error] Test com.typesafe.config.impl.ConfigDefaultRenderingTest.properArrayConcat failed: com.typesafe.config.ConfigException$WrongType: String: 1: Cannot concatenate object or list with a non-object-or-list, SimpleConfigList([1,2]) and Quoted(" ") are not compatible, took 0.012 sec

[kastoestoramadus]

@ennru breaking commit added intentionally:

• [BUG] Rendering array concatenation broken #829

[ekrich]

@ennru We are trying to be careful we don't fundamentally change the way config works in ekrich/sconfig so it is compatible with this repo. We haven't ported a couple of Java centric features but may if requested. Also, we refer to the docs in this repository and we don't want to maintain them, plus they are the official spec. Feel free to back port the rendering features that we added or any bugs we may fix.

[ennru]

Thanks. As this requires full attention to the details to not cause any unexpected consequences, I'm afraid we at Akka do not have capacity to take this forward.

[ennru]

I'm sorry this took so long...

The problem was solved with

• fix: rendering of substituted list with space #841