Is it possible to use data from .chezmoidata in .chezmoi.toml.tmpl ?

[Lockszmith-GH]

I'm pretty sure I saw discussions about this in the past, but I can't find one for this situation in my searches. Apologies if this has been beaten to death already.

In the page about .chezmoidata/ and .chezmoidata.$FORMAT it states in the warning section below:

⚠️ Files in .chezmoidata directories / .chezmoidata.$FORMAT files cannot be templates because they must be present prior to the start of the template engine. ...

I have a data structure defined, where execute-template shows that I have the syntax correctly setup:

> chezmoi execute-template '{{- $choices := .choices.flags -}}{{- $choices }}
'
[one two three]

To my understanding, the template engine should be available in .chezmoi.toml.tmpl. But instead, when I try the following statement:

{{- $choices := .choices.flags -}}

It results in the following error when I run chezmoi init:

chezmoi: template: chezmoi.toml:1:24: executing "chezmoi.toml" at <.choices.flags>: map has no entry for key "choices"

Was I expecting too much?
I was hoping to use it to setup my chezmoi configuration data section with prompts, instead of having all of the choices listed inside the main config template, but it seems the design doesn't allow it.

I understand why .chezmoitemplates isn't participating, but I thought data, with its static nature, would be available.

Stuff I've read, but didn't help me answer my question - click to expand

• .chezmoidata and templating #2892

[Lockszmith-GH]

It was right where it should be, but it's been ages since I checked, and now I've revisited it, I see this has been answered.

Plain and simple - NO

[Lockszmith-GH]

While not possible to use chezmoi's built-in post-init templating context, the rest of the quote on the .chezmoidata pages state:

... Dynamic environment data should be read from templates using the output, fromJson, fromYaml, or similar functions

Below is an example of using fromYaml:

My .chezmoidata/choices.yaml contains:

choices:
  flags:
    - "one"
    - "two"
    - "three"

Dynamic loading (can be done in .chezmoi.toml.tmpl)

> cz execute-template '{{-
  $choices := (list .chezmoi.sourceDir ".chezmoidata" "choices.yaml" | join "/" | include | fromYaml).choices
-}}{{- $choices.flags -}}
'
[one two three]

.chezmoidata availablility in the post-init template engine

> chezmoi execute-template '{{- $choices := .choices -}}{{- $choices.flags }}
'
[one two three]