`vsg --fix` should only write if the file needs changes

[JennToo]

Is your feature request related to a problem? Please describe.
I'm using make-style logic in my project. Specifically, there's only a need to re-run analysis / elaboration / simulation if the underlying VHDL files changed.

However, if I just run a blanket vsg --fix all-my-files.vhd, the file timestamps will be touched even if there is nothing to do.

Describe the solution you'd like
Either with a new flag, or just with a change to the default behavior, running vsg --fix ... should only update the file timestamps if something changed.

Describe alternatives you've considered
I've also considered a hack, which is to copy all the files to a temporary directory and then run vsg --fix on them and only copy them back if they've really changed. And this can work as a workaround for sure.

I only file this issue because I suspect others will run into similar situations.

Additional context
N / A

[jeremiah-c-leary]

Morning @JennToo ,

I pushed an update for this issue to the issue-1407 branch. When you get a chance could you check it out on your end and let me know if it works for you?

Thanks,

--Jeremy

[JennToo]

I gave it a try and it works great! Thanks for the quick fix @jeremiah-c-leary , and thanks for the project overall it has been very helpful 💖

[jeremiah-c-leary]

Morning @JennToo ,

Thanks for the kind words.

I will get this merged to master.

Regards,

--Jeremy