42 lines
1.6 KiB
HTML
42 lines
1.6 KiB
HTML
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{{/*
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GetFeaturedImage
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This partial gets the url for featured image for a given page.
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If a featured_image was set in the page's front matter, then that will be used.
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If not set, this will search page resources to find an image that contains the word
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"cover", and if found, returns the path to that resource.
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If no featured_image was set, and there's no "cover" image in page resources, then
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this partial returns an empty string (which evaluates to false).
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@return RelPermalink to featured image, or an empty string if not found.
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*/}}
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{{/* Declare a new string variable, $linkToCover */}}
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{{ $linkToCover := "" }}
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{{ $matches := "feature,cover" }}
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{{/* Use the value from front matter if present */}}
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{{ with .Params.featured_image }}
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{{/* This is the default case, the image lives in the static directory.
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In which case we'll use the static dir */}}
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{{ $linkToCover = trim . "/" | absURL }}
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{{/* If we find a Page Resource matching the exact value, we use it instead. */}}
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{{ with $.Resources.GetMatch . }}
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{{ $linkToCover = .RelPermalink }}
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{{ end }}
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{{/* Find the first image with 'cover' in the name in this page bundle. */}}
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{{ else }}
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{{ with .Resources.ByType "image" }}
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{{ with .GetMatch (printf "**{%s}*" $matches) }}
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{{ $linkToCover = .RelPermalink }}
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{{ end }}
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{{ end }}
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{{ end }}
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{{/* return either a permalink, or an empty string. Note that partials can only have a single
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return statement, so this needs to be at the end of the partial (and not in the if block) */}}
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{{ return $linkToCover }}
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