How to use resources.copy in this instance

support
1

In the code below, how do you use resources.copy so that src points to the local copy? Also, how to apply minify and fingerprint? I checked this example but I am not sure how to include the resources.Copy code within the error check.

  {{- if hugo.IsProduction}}
    {{- $testScript := "" }}
    {{-  $url := "https://example.com/test.js" }}
    {{- with resources.GetRemote $url }}
      {{- with .Err }}
      {{- errorf "%s" . }}
      {{- else }}
      {{- $testScript = . }}
      {{- end }}
      {{- else }}
      {{- errorf "Unable to get remote resource %q" $url }}
    {{- end }}
    <script src="{{ $testScript.RelPermalink }}"></script>
  {{- end }}
2

I added that to baseof.html

  • separate check for fail on GetRemote and rest (left for you)
  • no need to Copy something - or I did not get the use case
  • md5 just for brevity
<!doctype html>
<html>
   <head>
      {{ partial "getres.html" . }}
   </head>
   <body>
      <main>
         {{ block "main" . }}{{ end }}
      </main>
   </body>
</html>

and the partial:

{{- $url := "https://cdn.jsdelivr.net/npm/dummy@0.1.5/lib/dummy.min.js" -}}
{{- with $res := resources.GetRemote $url -}}
   {{- with ($res | minify | fingerprint) -}}
   <source src="{{- .RelPermalink -}}"></source>
   {{- end -}}
{{- end -}}

as soon as you use the resource in one of your pages it’s saved to disk

PUBLIC
dummy.min_12013928901789625223.min.f2caf9cf6d5d6d2d380bc1d0fa9845ae.js
    index.html

index.html:

<!doctype html>
<html>
   <head>
	<meta name="generator" content="Hugo 0.124.0"><script src="/livereload.js?mindelay=10&amp;v=2&amp;port=1313&amp;path=livereload" data-no-instant defer></script>
      <source src="/dummy.min_12013928901789625223.min.f2caf9cf6d5d6d2d380bc1d0fa9845ae.js"></source>
   </head>
   <body>
      <main>
         
   <h2 id="discourse-49007">Discourse 49007</h2>
      </main>
   </body>
</html>
3

You didn’t. I need to copy the remote resource locally to link to it. Any tips @jmooring ?

4

couldn’t you just store the .RelPermalink in a variable and use that one it is located at the root of the generated site

if not here’s a copy snippet

use $noop to force rendering - will create /my.min…js

   {{- $copy := resources.Copy "/my.js" . -}}
   {{- $noop := $copy.RelPermalink -}}
5

@arif I don’t understand where or why resources.Copy is required. Perhaps I misunderstand the objective.

The easiest/safest way to get a remote JS resource, minify, and fingerprint is (working example):

{{ $url := "https://www.veriphor.com/shared/other/test.js" }}
{{ with resources.GetRemote $url }}
  {{ with .Err }}
    {{ errorf "%s" . }}
  {{ else }}
    {{ with . | minify | fingerprint }}
      <script src="{{ .RelPermalink }}" integrity="{{ .Data.Integrity }}" crossorigin="anonymous"></script>
    {{ end }}
  {{ end }}
{{ else }}
  {{ errorf "Unable to get remote resource %q" $url }}
{{ end }}

The site is published to:

public/
├── posts/
│   ├── post-1/
│   │   └── index.html
│   └── index.html
├── favicon.ico
├── index.html
└── test_13636365218788771077.min.41e690adda8eedd2839b283f4329347519a2c4d1734bcdf4a7e6cb97715ad356.js
1 Like
6

I need to rename the remote file locally for easier identification. But you just gave me an idea.

{{ $url := "https://example.com/test.js" }}
  {{ with resources.GetRemote $url }}
  {{ with .Err }}
    {{ errorf "%s" . }}
  {{ else }}
    {{ with . }}
      {{ with resources.Copy "js/local.js" . | minify | fingerprint }}
         <script src="{{ .RelPermalink }}"></script>
      {{- end }}
    {{ end }}
  {{ end }}
 {{ else }}
  {{ errorf "Unable to get remote resource %q" $url }}
 {{ end }}
7

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