Simplify org-hugo handling of static, move to assets for optimization

Author: david-alvarez-rosa

.dir-locals.el

@@ -1,4 +1,4 @@
 ((org-mode
   . ((eval . (org-hugo-auto-export-mode 1))
      (org-hugo-base-dir . ".")
-     (org-hugo-default-static-subdirectory-for-externals . "images"))))
+     (org-hugo-external-file-extensions-allowed-for-copying . nil))))

Content.org

@@ -1257,7 +1257,7 @@ then dispatched to the appropriate override at runtime.  Under the hood,
 a virtual table (~vtable~) is created /for each class/, and a pointer
 (~vptr~) to the ~vtable~ is added /to each instance/.
 
-#+begin_src plantuml :file diagram.png
+#+begin_src plantuml :file ./assets/images/diagram.png
   @startuml
 
   hide empty members
@@ -1307,7 +1307,7 @@ a virtual table (~vtable~) is created /for each class/, and a pointer
 
 #+caption: *Virtual dispatch diagram.*  The method ~foo~ is declared virtual in ~Base~ and overridden in ~Derived~.  Both classes get a ~vtable~, and each object gets a ~vptr~ pointing to the corresponding ~vtable~.
 #+RESULTS:
-[[file:diagram.png]]
+[[file:./assets/images/diagram.png]]
 
 On a virtual call, the compiler loads the ~vptr~, selects the right slot
 in the ~vtable~, and performs an indirect call through that function

assets/images/diagram.png

@@ -16,4 +16,4 @@ low-latency, high-performance systems.  I'm a strong advocate of free
 
 Find me on [GitHub](https://github.com/david-alvarez-rosa/), [GitLab](https://gitlab.com/david-alvarez-rosa), and [LinkedIn](https://linkedin.com/in/david-alvarez-rosa).
 
-[^fn:1]: ![](/images/home-illustration.png) ‎
+[^fn:1]: ![](./assets/images/home-illustration.png) ‎

content/_index.md

@@ -130,7 +130,7 @@ Catalan --- Intermediate
 You can reach me at david@alvarezrosa.com (preferred) or +34 647 13
 39 30.
 
-[^fn:1]: ![](/images/portrait.png) **That's me!** March 2022.
+[^fn:1]: ![](./assets/images/portrait.png) **That's me!** March 2022.
 [^fn:2]: Jul 2024--Present<br />
     Dublin, Ireland
 [^fn:3]: Mar 2022--Aug 2024<br />

content/about.md

@@ -25,7 +25,7 @@ then dispatched to the appropriate override at runtime.  Under the hood,
 a virtual table (`vtable`) is created _for each class_, and a pointer
 (`vptr`) to the `vtable` is added _to each instance_.
 
-{{< figure src="/images/diagram.png" caption="<span class=\"figure-number\">Figure 1: </span>**Virtual dispatch diagram.**  The method `foo` is declared virtual in `Base` and overridden in `Derived`.  Both classes get a `vtable`, and each object gets a `vptr` pointing to the corresponding `vtable`." >}}
+{{< figure src="./assets/images/diagram.png" caption="<span class=\"figure-number\">Figure 1: </span>**Virtual dispatch diagram.**  The method `foo` is declared virtual in `Base` and overridden in `Derived`.  Both classes get a `vtable`, and each object gets a `vptr` pointing to the corresponding `vtable`." >}}
 
 On a virtual call, the compiler loads the `vptr`, selects the right slot
 in the `vtable`, and performs an indirect call through that function

content/posts/devirtualization-and-static-polymorphism.md

@@ -274,7 +274,7 @@ minimize scheduling noise.
 
 Long live lock-free and wait-free data structures!
 
-[^fn:1]: ![](/images/ringbuffer.jpg) **Ring buffer with 32 slots.** The
+[^fn:1]: ![](./assets/images/ringbuffer.jpg) **Ring buffer with 32 slots.** The
     producer has filled 15 of them, indicated by blue.  The consumer is
     behind the producer, reading data from the slots, freeing them as it
     does so.  A free slot is indicated by orange.

content/posts/optimizing-a-lock-free-ring-buffer.md

@@ -1,37 +1,34 @@
-{{- $src := .src -}}
+{{ $src := .src }}
 
-{{- /* Derive alt text from filename: strip path and extension, replace hyphens with spaces */ -}}
-{{- $alt := path.BaseName $src | replaceRE `-` " " | strings.FirstUpper -}}
+{{ $alt := path.BaseName $src | replaceRE `-` " " | strings.FirstUpper }}
+{{ $src := strings.TrimPrefix "./assets/" .src }}
+{{ $img := resources.Get $src }}
 
-{{- /* Strip leading slash to get asset path */ -}}
-{{- $path := strings.TrimPrefix "/" $src -}}
-{{- $img := resources.Get $path -}}
+{{ if $img }}
+  {{ $widths := slice 480 768 1024 1536 }}
+  {{ $origWidth := $img.Width }}
+  {{ $origHeight := $img.Height }}
 
-{{- if $img -}}
-  {{- $widths := slice 480 768 1024 1536 -}}
-  {{- $origWidth := $img.Width -}}
-  {{- $origHeight := $img.Height -}}
+  {{ $webpSrcset := slice }}
+  {{ $origSrcset := slice }}
+  {{ $hasOrigWidth := false }}
+  {{ range $widths }}
+    {{ if le . $origWidth }}
+      {{ if eq . $origWidth }}
+        {{ $hasOrigWidth = true }}
+      {{ end }}
+      {{ $resized := $img.Resize (printf "%dx webp" .) }}
+      {{ $webpSrcset = $webpSrcset | append (printf "%s %dw" $resized.RelPermalink .) }}
+      {{ $resizedOrig := $img.Resize (printf "%dx" .) }}
+      {{ $origSrcset = $origSrcset | append (printf "%s %dw" $resizedOrig.RelPermalink .) }}
+    {{ end }}
+  {{ end }}
 
-  {{- $webpSrcset := slice -}}
-  {{- $origSrcset := slice -}}
-  {{- $hasOrigWidth := false -}}
-  {{- range $widths -}}
-    {{- if le . $origWidth -}}
-      {{- if eq . $origWidth -}}
-        {{- $hasOrigWidth = true -}}
-      {{- end -}}
-      {{- $resized := $img.Resize (printf "%dx webp" .) -}}
-      {{- $webpSrcset = $webpSrcset | append (printf "%s %dw" $resized.RelPermalink .) -}}
-      {{- $resizedOrig := $img.Resize (printf "%dx" .) -}}
-      {{- $origSrcset = $origSrcset | append (printf "%s %dw" $resizedOrig.RelPermalink .) -}}
-    {{- end -}}
-  {{- end -}}
-
-  {{- if not $hasOrigWidth -}}
-    {{- $webpFull := $img.Process "webp" -}}
-    {{- $webpSrcset = $webpSrcset | append (printf "%s %dw" $webpFull.RelPermalink $origWidth) -}}
-    {{- $origSrcset = $origSrcset | append (printf "%s %dw" $img.RelPermalink $origWidth) -}}
-  {{- end -}}
+  {{ if not $hasOrigWidth }}
+    {{ $webpFull := $img.Process "webp" }}
+    {{ $webpSrcset = $webpSrcset | append (printf "%s %dw" $webpFull.RelPermalink $origWidth) }}
+    {{ $origSrcset = $origSrcset | append (printf "%s %dw" $img.RelPermalink $origWidth) }}
+  {{ end }}
 
   <a href="{{ $img.RelPermalink }}">
   <picture>
@@ -50,6 +47,6 @@
       decoding="async">
   </picture>
   </a>
-{{- else -}}
+{{ else }}
   <a href="{{ $src }}"><img src="{{ $src }}" alt="{{ $alt }}" loading="lazy" decoding="async"></a>
-{{- end -}}
+{{ end }}