Support "index" in front matter

[m1rm]

Sometimes you do not want to index everything automatically. How about supporting an index param that is used in the head.html to have explicit control whether a site is indexed or not?

layouts/partials/head.html

{{- if hugo.IsProduction | or (eq site.Params.env "production") | and (ne .Params.robotsNoIndex true) | and (eq .Params.index true) }}
<meta name="robots" content="index, follow">
{{- else }}
<meta name="robots" content="noindex, nofollow">
{{- end }}

instead of eq. .Params.index true we could also go for the negation so that you only have to specify index = false if you do not want a page/post to be indexed.

[m1rm]

oh, robotsNoIndex already does this!