Fingerprint style file in production only (#92)

Signed-off-by: Patrice Chalin <pchalin@gmail.com>

Author: chalin

layouts/partials/css.html

@@ -1,14 +1,14 @@
-{{ $inServerMode := site.IsServer -}}
+{{ $inProd := hugo.IsProduction -}}
 {{ $includePaths := (slice "node_modules") -}}
 {{ $sass         := "sass/custom.sass" -}}
 {{ $cssOutput    := "css/style.css" -}}
 {{ $devOpts      := (dict "targetPath" $cssOutput "includePaths" $includePaths "enableSourceMap" true) -}}
 {{ $prodOpts     := (dict "targetPath" $cssOutput "includePaths" $includePaths "outputStyle" "compressed") -}}
-{{ $cssOpts      := cond $inServerMode $devOpts $prodOpts -}}
+{{ $cssOpts      := cond $inProd $prodOpts $devOpts -}}
 {{ $css          := resources.Get $sass | resources.ExecuteAsTemplate "blah.sass" . | toCSS $cssOpts -}}
-{{ if $inServerMode -}}
-<link rel="stylesheet" href="{{ $css.RelPermalink }}">
-{{ else -}}
+{{ if $inProd -}}
 {{ $prodCss      := $css | fingerprint -}}
 <link rel="stylesheet" href="{{ $prodCss.RelPermalink }}" integrity="{{ $prodCss.Data.Integrity }}">
+{{ else -}}
+<link rel="stylesheet" href="{{ $css.RelPermalink }}">
 {{ end -}}