.chezmoitemplates
If a directory called .chezmoitemplates exists, then all files in this
directory are available as templates with a name equal to the relative path
to the .chezmoitemplates directory.
The template action can be
used to include these templates in another template. The value of . must be
set explicitly if needed, otherwise the template will be executed with nil
data.
Example
Given:
~/.local/share/chezmoi/.chezmoitemplates/foo
{{ if true }}bar{{ end }}
~/.local/share/chezmoi/dot_file.tmpl
{{ template "foo" . }}
The target state of .file will be bar.