layouts: use hugo.IsProduction

layouts/partials/cover.html

@@ -9,7 +9,7 @@
             rel="noopener noreferrer">{{ end -}}
         {{- $sizes := (slice "360" "480" "720" "1080" "1500") }}
         {{- $processableFormats := (slice "jpg" "jpeg" "png" "tif" "bmp" "gif") }}
-        {{- $prod := (eq (getenv "HUGO_ENV") "production" | or (eq .Site.Params.env "production")) }}
+        {{- $prod := (hugo.IsProduction | or (eq .Site.Params.env "production")) }}
         {{- if (and (in $processableFormats $cover.MediaType.SubType) (ne .Site.Params.cover.responsiveImages false) (eq $prod true)) }}
         <img srcset="{{- range $size := $sizes -}}
                         {{- if (ge $cover.Width $size) -}}

layouts/partials/head.html

@@ -1,7 +1,7 @@
 <meta charset="utf-8">
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
-{{- if eq (getenv "HUGO_ENV") "production" | or (eq .Site.Params.env "production") }}
+{{- if hugo.IsProduction | or (eq .Site.Params.env "production") }}
 <meta name="robots" content="index, follow">
 {{- else }}
 <meta name=" robots" content="noindex, nofollow">
@@ -76,7 +76,7 @@
 {{ end }}
 {{- partial "extend_head.html" . -}}
 <!-- Misc -->
-{{- if eq (getenv "HUGO_ENV") "production" | or (eq .Site.Params.env "production") }}
+{{- if hugo.IsProduction | or (eq .Site.Params.env "production") }}
 {{- template "_internal/google_analytics_async.html" . }}
 {{- template "_internal/google_news.html" . }}
 {{- template "partials/templates/opengraph.html" . }}

layouts/robots.txt

@@ -1,5 +1,5 @@
 User-agent: *
-{{- if eq (getenv "HUGO_ENV") "production" | or (eq .Site.Params.env "production") }}
+{{- if hugo.IsProduction | or (eq .Site.Params.env "production") }}
 Disallow:
 {{- else }}
 Disallow: /