Fingerprint appended twice causing file name too long

[jloh]

What version of Hugo are you using (hugo version)?

I normally use the extended edition, currently using the standard one.

$ hugo version
hugo v0.128.2-de36c1a95d28595d8243fd8b891665b069ed0850 darwin/arm64 BuildDate=2024-07-04T08:13:25Z VendorInfo=gohugoio

Does this issue reproduce with the latest release?

Yes

---

Every now and then Hugo seems to append the fingerprint of a hashed image to it twice, this causes the server to fail because the resulting filename ends up being to long:

Change detected, rebuilding site (#11).
2024-07-13 23:00:45.163 +1000
Template changed /_default/list.html
ERROR open /Users/james/code/github/jloh/blog/public/posts/create-a-edgerouter-dmz/new_firewall_group.3ef0e068ae956523362daaab41a5c19413fc600293421b569d084e0ad28cae151f3c37908775cf8bb68b40a35ea70ab26f992eaed2bf19ad8898900b170e4444.3ef0e068ae956523362daaab41a5c19413fc600293421b569d084e0ad28cae151f3c37908775cf8bb68b40a35ea70ab26f992eaed2bf19ad8898900b170e4444.png: file name too long
ERROR open /Users/james/code/github/jloh/blog/public/posts/create-a-edgerouter-dmz/firewall_group_add_ranges.2135673415dc56dec230a31f866b42b22f535e25eddc4ab42d265509690184b1be03afc3020dc17c25ffd1e88c4346b29fd35dbdeb4ddbdf3b6e7809f48ac7f4.2135673415dc56dec230a31f866b42b22f535e25eddc4ab42d265509690184b1be03afc3020dc17c25ffd1e88c4346b29fd35dbdeb4ddbdf3b6e7809f48ac7f4.png: file name too long
ERROR open /Users/james/code/github/jloh/blog/public/posts/create-a-edgerouter-dmz/add_new_firewall_set.7465bafac167f2e5d84094403a821a040e8ebeaa484b296ef382d299c229f84196a01ee220ca7f4c3c4a78de2d10dccf66ec395b1f3ecfcac4127bb70a6fc478.7465bafac167f2e5d84094403a821a040e8ebeaa484b296ef382d299c229f84196a01ee220ca7f4c3c4a78de2d10dccf66ec395b1f3ecfcac4127bb70a6fc478.png: file name too long
ERROR open /Users/james/code/github/jloh/blog/public/posts/create-a-edgerouter-dmz/add_established_related_rule.83ac29f37d94588bf486c3656023249dc24daa583dfbaa701f35cea94b0358c86f3fb300ebada0aaead9cd978616640bdce62f0f947ab7cd354fb1ec223bff5f.83ac29f37d94588bf486c3656023249dc24daa583dfbaa701f35cea94b0358c86f3fb300ebada0aaead9cd978616640bdce62f0f947ab7cd354fb1ec223bff5f.png: file name too long
ERROR Rebuild failed: open /Users/james/code/github/jloh/blog/public/posts/installing-newrelic-monitor-gitlab/newrelic_install_menu.8c9fc81716df711510656edd5b972e5938bc81ef59a7cc84c6cdd2a9876a7eb09d47c02f6edd82b70b9d633e4e29f02d2bdb0feeeed9a8d315a104daaa770004.8c9fc81716df711510656edd5b972e5938bc81ef59a7cc84c6cdd2a9876a7eb09d47c02f6edd82b70b9d633e4e29f02d2bdb0feeeed9a8d315a104daaa770004.png: file name too long
Web Server is available at http://localhost:1313/ (bind address 127.0.0.1)
Total in 475 ms

Note that the images have the fingerprint once, a ., then the same fingerprint again.

I use a render-image.html hook that looks like this:

{{- with .Page.Resources.GetMatch .Destination -}}
	{{- $image := . -}}
	{{- $imageSHA := . | resources.Fingerprint "sha512" -}}
	{{- $src := $image.RelPermalink -}}

	{{- if $src -}}
		{{- $srcSets := slice -}}
		{{- range $imageSize := sort (site.Params.photoWidths) -}}
			{{- if ge $image.Width . }}
				{{- $srcSets = $srcSets | append (print (($image.Resize (print $imageSize "x")).RelPermalink | safeURL ) " " $imageSize "w") -}}
			{{- end -}}
		{{- end -}}
		{{- $srcSets = $srcSets | append (print (print ($imageSHA.RelPermalink) " " $image.Width "w")) -}}
		{{- $srcSets = delimit $srcSets ", " | safeHTMLAttr -}}
		<img
			class="mx-auto my-6"
			sizes="(min-width: 42rem) 42rem, 100vw"
			{{ printf "srcset=%q" $srcSets | safeHTMLAttr }}
			src="{{ $imageSHA.RelPermalink }}"
			alt="{{ $.Text }}"
			{{ with $.Title }}title="{{ . }}"{{ end }}
			width="{{ $image.Width }}"
			height="{{ $image.Height }}"
			loading="lazy"
		/>
	{{- else -}}
		{{- errorf "failed to find image" -}}
		could not find image
	{{- end -}}
{{- else -}}

	{{- if strings.HasPrefix .Destination "http" -}}
		<img
			loading="lazy"
			class="mx-auto my-6"
			src="{{ .Destination | safeURL }}"
			alt="{{ .Text }}"
			{{ with .Title }}title="{{ . }}"{{ end }}
		/>
	{{- else -}}
		<img
			loading="lazy"
			class="mx-auto my-6"
			src="{{ .Destination | safeURL }}"
			alt="{{ .Text }}"
			{{ with .Title }}title="{{ . }}"{{ end }}
			{{ with imageConfig ( printf "static/%s" .Destination ) }}width="{{ .Width }}" height="{{ .Height }}"{{ end }}
		/>
	{{- end -}}
{{- end -}}

I'm having trouble getting a reliable replication case, it seems to happen randomly. I wasn't editing the post that has those images either, it was a different post.

As per #12655 I am using the new templates.Defer functionality, I don't know whether thats involved. Apologies if this is a problem with my template but I have only been experiencing this recently!

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