mirror of
https://github.com/jbowdre/runtimeterror.git
synced 2024-11-22 15:02:18 +00:00
update draft
This commit is contained in:
parent
603856c6a5
commit
f9eb265f41
1 changed files with 140 additions and 8 deletions
|
|
@ -16,16 +16,21 @@ tags:
|
|||
---
|
||||
I've lately seen some folks on [social.lol](https://social.lol) posting about their various strategies for automatically generating [Open Graph images](https://ogp.me/) for their [Eleventy](https://11ty.dev) sites. So this weekend I started exploring ways to do that for my [Hugo](https://gohugo.io) site.
|
||||
|
||||
During my search, I came across a few different approaches using external services or additional scripts to run at build time. I eventually came across a post from Aaro titled [Generating OpenGraph images with Hugo](https://aarol.dev/posts/hugo-og-image/) which seemed like exactly what I was after, as it uses Hugo's built-in [image functions](https://gohugo.io/functions/images/filter/) to dynamically create the image.
|
||||
During my search, I came across a few different approaches using external services or additional scripts to run at build time. I eventually came across a post from Aaro titled [Generating OpenGraph images with Hugo](https://aarol.dev/posts/hugo-og-image/) which seemed like exactly what I was after, as it uses Hugo's built-in [image functions](https://gohugo.io/functions/images/filter/) to dynamically create the image by layering text on top of a base.
|
||||
|
||||
I wound up borrowing heavily from Aaro's approach and then adding a few additional capabilities, notably the ability to overlay a designated thumbnail image on top of the resulting OpenGraph image. I'm sure this could be further optimized by someone who knows what they're doing[^future].
|
||||
I ended up borrowing heavily from Aaro's approach with a few variants for the OpenGraph image:
|
||||
- When sharing the home page, the image includes the site description.
|
||||
- When sharing a post, the image includes the post title.
|
||||
- ... but if the post has a thumbnail listed in the front matter, that gets added to the corner of the `og:image`.
|
||||
|
||||
I'm sure this could be further optimized by someone who knows what they're doing[^future]. In any case, here's what I did to get this working.
|
||||
|
||||
[^future]: Like Future John, perhaps? Past John loves leaving stuff for that guy to figure out.
|
||||
|
||||
In any case, here's what I did to get this working.
|
||||
|
||||
### New resources
|
||||
Based on Aaro's suggestions, I started by creating a 1200x600 image to use as the base. I used [GIMP](https://www.gimp.org/) for this. I'm not a graphic designer[^web] so I kept it simple while emulating the "logo" displayed at the top of the page:
|
||||
Based on Aaro's suggestions, I started by creating a 1200x600 image to use as the base. I used [GIMP](https://www.gimp.org/) for this.
|
||||
|
||||
I'm not a graphic designer[^web] so I kept it simple. I wanted to be sure that the text matched the font used on the site, so I downloaded the [Fira Mono `.ttf`](https://github.com/mozilla/Fira/blob/master/ttf/FiraMono-Regular.ttf) to `~/.fonts/` to make it available within GIMP. And then I emulated the colors and style of the "logo" displayed at the top of the page.
|
||||
|
||||
![Red background with a command prompt displaying "[runtimeterror.dev] $" in white and red font.](og_base.png)
|
||||
|
||||
|
|
@ -33,9 +38,7 @@ Based on Aaro's suggestions, I started by creating a 1200x600 image to use as th
|
|||
|
||||
That fits with the theme of the site, and leaves plenty of room for text to be added to the image.
|
||||
|
||||
The site uses the Fira Mono font family, and I'd like to use that to ensure the share image is consistent with the site styling. So I also grabbed `FiraMono-Regular.ttf` from the [Fira GitHub](https://github.com/mozilla/Fira).
|
||||
|
||||
I stashed both of those resources in my `assets/` folder:
|
||||
I'll want to also use that font for the text overlay, so I stashed both of those resources in my `assets/` folder:
|
||||
|
||||
|
||||
### OpenGraph partial
|
||||
|
|
@ -62,4 +65,133 @@ Hugo uses an [internal template](https://github.com/gohugoio/hugo/blob/master/tp
|
|||
{{- with .Params.videos }}{{- range . }}
|
||||
<meta property="og:video" content="{{ . | absURL }}" />
|
||||
{{ end }}{{ end }}
|
||||
```
|
||||
|
||||
To use this new partial, I'll add it to my `layouts/partials/head.html`:
|
||||
|
||||
```jinja-html
|
||||
{{ partial "opengraph" . }}
|
||||
```
|
||||
|
||||
which is in turn loaded by `layouts/_defaults/baseof.html`:
|
||||
|
||||
```jinja-html
|
||||
<head>
|
||||
{{- partial "head.html" . -}}
|
||||
</head>
|
||||
```
|
||||
|
||||
### Home page OG
|
||||
|
||||
```jinja-html
|
||||
// torchlight! {"lineNumbers": true}
|
||||
{{ $base := resources.Get "og_base.png" }} <!-- [tl! **:1] -->
|
||||
{{ $font := resources.Get "/FiraMono-Regular.ttf" }}
|
||||
<meta property="og:title" content="{{ .Title }}" /> <!-- [tl! collapse:4] -->
|
||||
<meta property="og:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}" />
|
||||
<meta property="og:type" content="{{ if .IsPage }}article{{ else }}website{{ end }}" />
|
||||
<meta property="og:url" content="{{ .Permalink }}" />
|
||||
<meta property="og:locale" content="{{ .Lang }}" />
|
||||
|
||||
{{- if .IsHome }} <!-- [tl! **:start] -->
|
||||
{{ $img := $base.Filter (images.Text .Site.Params.Description (dict
|
||||
"color" "#d8d8d8"
|
||||
"size" 64
|
||||
"linespacing" 2
|
||||
"x" 40
|
||||
"y" 300
|
||||
"font" $font
|
||||
))}}
|
||||
{{ $img = resources.Copy "og.png" $img }}
|
||||
{{ .Scratch.Set "og_image" $img }}
|
||||
{{- end }} <!-- [tl! **:end] -->
|
||||
|
||||
{{- if .IsPage }} <!-- [tl! collapse:start] -->
|
||||
{{- $iso8601 := "2006-01-02T15:04:05-07:00" -}}
|
||||
<meta property="article:section" content="{{ .Section }}" />
|
||||
{{ with .PublishDate }}<meta property="article:published_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
|
||||
{{ with .Lastmod }}<meta property="article:modified_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
|
||||
{{- end -}}
|
||||
|
||||
{{- with .Params.audio }}<meta property="og:audio" content="{{ . }}" />{{ end }}
|
||||
{{- with .Params.locale }}<meta property="og:locale" content="{{ . }}" />{{ end }}
|
||||
{{- with .Site.Params.title }}<meta property="og:site_name" content="{{ . }}" />{{ end }}
|
||||
{{- with .Params.videos }}{{- range . }}
|
||||
<meta property="og:video" content="{{ . | absURL }}" />
|
||||
{{ end }}{{ end }} <!-- [tl! collapse:end] -->
|
||||
```
|
||||
|
||||
### Post OG
|
||||
|
||||
```jinja-html
|
||||
{{ $base := resources.Get "og_base.png" }}
|
||||
{{ $font := resources.Get "/FiraMono-Regular.ttf" }}
|
||||
<meta property="og:title" content="{{ .Title }}" />
|
||||
<meta property="og:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}" />
|
||||
<meta property="og:type" content="{{ if .IsPage }}article{{ else }}website{{ end }}" />
|
||||
<meta property="og:url" content="{{ .Permalink }}" />
|
||||
<meta property="og:locale" content="{{ .Lang }}" />
|
||||
|
||||
{{- if .IsHome }}
|
||||
{{ $img := $base.Filter (images.Text .Site.Params.Description (dict
|
||||
"color" "#d8d8d8"
|
||||
"size" 64
|
||||
"linespacing" 2
|
||||
"x" 40
|
||||
"y" 300
|
||||
"font" $font
|
||||
))}}
|
||||
{{ $img = resources.Copy "og.png" $img }}
|
||||
{{ .Scratch.Set "og_image" $img }}
|
||||
{{- end }}
|
||||
|
||||
{{- if .IsPage }}
|
||||
{{- $iso8601 := "2006-01-02T15:04:05-07:00" -}}
|
||||
<meta property="article:section" content="{{ .Section }}" />
|
||||
{{ with .PublishDate }}<meta property="article:published_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
|
||||
{{ with .Lastmod }}<meta property="article:modified_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
|
||||
{{ with .Params.thumbnail }}
|
||||
{{ $thumbnail := $.Resources.Get . }}
|
||||
{{ with $thumbnail }}
|
||||
{{ $img := $base.Filter (images.Overlay (.Process "fit 300x250") 875 38 )}}
|
||||
{{ $img = $img.Filter (images.Text $.Page.Title (dict
|
||||
"color" "#d8d8d8"
|
||||
"size" 64
|
||||
"linespacing" 2
|
||||
"x" 40
|
||||
"y" 300
|
||||
"font" $font
|
||||
))}}
|
||||
{{ $img = resources.Copy (path.Join $.Page.RelPermalink "og.png") $img }}
|
||||
{{ $.Scratch.Set "og_image" $img }}
|
||||
{{ end }}
|
||||
{{ else }}
|
||||
{{ $img := $base.Filter (images.Text .Page.Title (dict
|
||||
"color" "#d8d8d8"
|
||||
"size" 64
|
||||
"linespacing" 2
|
||||
"x" 40
|
||||
"y" 300
|
||||
"font" $font
|
||||
))}}
|
||||
{{ $img = resources.Copy (path.Join $.Page.RelPermalink "og.png") $img }}
|
||||
{{ .Scratch.Set "og_image" $img }}
|
||||
{{ end }}
|
||||
{{- end -}}
|
||||
{{ $img := .Scratch.Get "og_image" }}
|
||||
|
||||
<meta property="og:image" content="{{$img.Permalink}}">
|
||||
<meta property="og:image:width" content="{{$img.Width}}" />
|
||||
<meta property="og:image:height" content="{{$img.Height}}" />
|
||||
<meta name="twitter:card" content="summary_large_image" />
|
||||
<meta name="twitter:title" content="{{ .Title }}" />
|
||||
<meta name="twitter:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end -}}"/>
|
||||
<meta name="twitter:image" content="{{$img.Permalink}}" />
|
||||
|
||||
{{- with .Params.audio }}<meta property="og:audio" content="{{ . }}" />{{ end }}
|
||||
{{- with .Site.Params.title }}<meta property="og:site_name" content="{{ . }}" />{{ end }}
|
||||
{{- with .Params.videos }}{{- range . }}
|
||||
<meta property="og:video" content="{{ . | absURL }}" />
|
||||
{{ end }}{{ end }}
|
||||
|
||||
```
|
||||
Loading…
Reference in a new issue