Add --line-length parameter to format subcommand for cf policy files

[moschlar]

No description provided.

[cf-bottom]

Thanks for submitting a PR! Maybe @craigcomstock can review this?

[craigcomstock]

Seems reasonable. Good to keep existing behavior with defaults. 👍

[olehermanse]

Hello!

Thank you for opening a pull request. In general we don't want too much customizability in this formatter, since the goal of it is to make consistent looking policy files. (If everyone is customizing their formatters then they're no longer consistent, or perhaps less consistent than if they all used the same style).

With that said, I think it's okay to allow for customizable line lengths, at least for now.

In order to get this merged, please address the following:

• Remove the commit concerning customizing indent
• Change the command line option to --line-length
• Change the places where you are sending args objects to functions, use an explicit parameter with an appropriate name instead (line_length).
• Add a simple shell test where you run the tool with different --line-length values, and check that it works correctly.

Let me know if you have any questions!

[olehermanse]

This looks ready now, thanks for your contribution! (In the future, feel free to open an issue to discuss something before implementing :) )