DAB Custom Templates - lowercase input variables

[FedericoRaimondi]

Describe the issue

I would like to lowercase the variable input from user when creating from a custom template

Configuration

I tired with a library/template.tmpl file with the following content:

{{ define `project_name_clean` -}}
    {{- strings.ToLower ((regexp `-`).ReplaceAllString ((regexp `[^A-Za-z0-9_-]`).ReplaceAllString (print .project_name) ``) `_`) -}}
{{- end }}

Steps to reproduce the behavior

Please list the steps required to reproduce the issue, for example:

1. Create a simple custom template
2. Run databricks bundle init your_template
3. Error: template: variables.tmpl:2: function "strings" not defined

Expected Behavior

I see it's probably because this function isn't support by the go template (not very familiar with it tbh)

Actual Behavior

If it's possible: more docs around possible functions to use in custom templates.
If not possible to achieve; then it would be a good addition to custom templates.

OS and CLI version

Please provide the version of the CLI (eg: v0.1.2) and the operating system (eg: windows). You can run databricks --version to get the version of your Databricks CLI

• Databricks CLI v0.251.0

[shreyas-goenka]

Thanks for reaching out, Federico. That was not possible. I've created a PR that should add this feature to the CLI. If all goes well, it should be released by next week.

PR: #3242

[FedericoRaimondi]

Thanks for the quick implementation!!!

Can't wait to test it out in my custom template! This will really improve the usage in ensuring a good project name. In my case a name like "My_Project" would have created a build issue using uv as a python package manager