use partial for footer scripts

layouts/partials/single/footer-scripts.html

@@ -0,0 +1,46 @@
+{{- /*
+    Renders a single item's required footer JS scripts.
+
+    @params sc Site context.
+    @params pc Page context.
+    */
+-}}
+
+<!-- Validation -->
+
+{{- if ( not ( isset . "sc" ) ) -}}
+    {{- errorf "No site context passed" -}}
+{{- end -}}
+
+{{- if ( not ( isset . "pc" ) ) -}}
+    {{- errorf "No page context passed" -}}
+{{- end -}}
+
+{{- if ( and ( .pc.HasShortcode "chart" ) ( not ( .pc.Page.Resources.GetMatch "charts-init" ) ) ) -}}
+    {{- errorf "No 'chart-init' page resource defined (%q)" .pc.Page.File.Path -}}
+{{- end -}}
+
+<!-- Rendering -->
+
+{{ if .pc.Params.locations }}
+    {{- 
+        partialCached 
+        "scripts/show_post_locations_on_map.html" 
+        ( dict 
+            "pc" .pc
+            "locations_data" .sc.Site.Data.locations
+            "locations" .pc.Params.locations
+        ) 
+        .pc.Params.locations
+    -}}
+{{ end }}
+
+{{ if .pc.HasShortcode "chart" }}
+    {{- $configJs := ( .pc.Page.Resources.GetMatch "charts-init" | fingerprint ) -}}
+    {{-
+        partialCached
+        "scripts/charts.html"
+        $configJs
+        $configJs
+    -}}
+{{ end }}