Support for regexp in text templates

[tillig]

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What would you like to see changed/added?

I'm using the kubectl segment and, for various reasons, I have kubectl context names that are sometimes very long due to a sort of programmatic/conventional format I use. For example, I might have a context like:

azure-subscription-guid.resource-group.cluster-name like c8286312-a409-47d0-a1c0-3be15ecefcb7.my-rg.my-cluster

I was going to try to "detect" contexts in that format so I could truncate them down to.. c8..b7.my-rg.my-cluster

which would be easy with regexp support but that's not something out of the box. A package like this one has it, but I'm not sure if that'd wreck performance or if there's a way to just opt in to certain more common functions.

In any case, it'd be cool to be able to do regexp work on the contents of templates for some extra functionality.

[JanDeDobbeleer]

@tillig this isn't that hard to achieve. Let me see what I can do.

[tillig]

While you're poking at it, it seems like there is potentially some weirdness around slice or maybe I don't understand how to use it. I tried something like this...

{{ if gt (len .Context) 5 }}{{ slice .Context 5 }}{{ else }}{{ .Context }}{{ end }}

...and that yields

unable to create text based on template

I could be doing it wrong. I was just trying to test it out, see if I could do a bunch of slices to mimic the behavior I want.

[JanDeDobbeleer]

@tillig you should be able to see the actual error using oh-my-posh debug. These are built-in commands.

[tillig]

This works great! I'm using this regex to shorten GUID-format strings to XX..YY format:

        {
          "background": "#ebcc34",
          "foreground": "#000000",
          "powerline_symbol": "",
          "style": "powerline",
          "template": " ⎈ {{ replaceP \"([a-f0-9]{2})[a-f0-9]{6}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{10}([a-f0-9]{2})\" .Context \"$1..$2\" }}{{ if .Namespace }} :: {{ .Namespace }}{{ end }} ",
          "type": "kubectl"
        }

Thanks!

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