layouts/partials/breadcrumbs.html

{{ $.Scratch.Set "breadcrumb_path" "/" }}
{{ $.Scratch.Set "url" (replace .Permalink ( printf "%s" .Site.BaseURL) "") }}

{{ $latestChar := substr ($.Scratch.Get "url") (sub (len ($.Scratch.Get "url")) 1) }}
{{ if eq $latestChar "/" }}
    {{ $newUrl := substr ($.Scratch.Get "url") 0 (sub (len ($.Scratch.Get "url")) 1) }}
    {{ $.Scratch.Set "url" $newUrl }}
{{ end }}

<ol class="breadcrumb mt-4 p-2 bg-body-tertiary">
    {{ $splittedUrl := split ($.Scratch.Get "url") "/" }}
    {{ range $index, $element := $splittedUrl }}
        {{ $.Scratch.Add "breadcrumb_path" $element }}
        {{ if ne $element "" }}
            {{ if eq $index (sub (len $splittedUrl) 1) }}
                <li class="breadcrumb-item active">{{ upper (replace (humanize .) ".html" "") }}</li>
            {{ else }}
                <li class="breadcrumb-item"><a href='{{ $.Scratch.Get "breadcrumb_path" }}'>{{ upper (replace (humanize .) ".html" "") }}</a></li>
            {{ end }}
            {{ $.Scratch.Add "breadcrumb_path" "/" }}
        {{ end }}
    {{ end }}
</ol>

{{ $.Scratch.Delete "breadcrumb_path" }}
{{ $.Scratch.Delete "url" }}