Add permalinks to all articles

They're not pretty (enough) yet, but kinda neat.  Maybe they should be
at the end of the article, though.  Or more to the side, so that media
posts without titles look better.

go/blog/blog.go

@@ -192,7 +192,20 @@ var funcs = template.FuncMap{
	},
}
var shellTmpl = template.Must(template.New("shell").
var baseTmpl = template.Must(template.New("base").
	Funcs(funcs).Parse(`
{{ define "title" }}
	<header>
		{{- if .Title }}
		<h1>{{ .Title }}</h1>{{ end }}
		<a class="permalink" href="#{{ .Id }}">∞</a>
		{{- if .Date }}
		<time>{{ .Date }}</time>{{ end }}
	</header>
{{ end }}
`))
var shellTmpl = template.Must(baseTmpl.New("shell").
	Funcs(funcs).Parse(`
<article id="{{ .Id }}" class="shell">
	<header>
@@ -207,7 +220,7 @@ var shellTmpl = template.Must(template.New("shell").
</article>
`))
var linkTmpl = template.Must(template.New("link").
var linkTmpl = template.Must(baseTmpl.New("link").
	Funcs(funcs).Parse(`
<article id="{{ .Id }}" class="link">
	<header>
@@ -222,16 +235,10 @@ var linkTmpl = template.Must(template.New("link").
</article>
`))
var imageTmpl = template.Must(template.New("image").
var imageTmpl = template.Must(baseTmpl.New("image").
	Funcs(funcs).Parse(`
<article id="{{ .Id }}" class="image">
	{{- if .Title }}
	<header>
		<h1>{{ .Title }}</h1>
		<a class="permalink" href="#{{ .Id }}">∞</a>
		{{- if .Date }}<time>{{ .Date }}</time>{{ end -}}
	</header>
	{{- end }}
	{{- template "title" . }}
	<img src="{{ safe_url .URL }}" />
	{{- if .Content }}
@@ -240,16 +247,10 @@ var imageTmpl = template.Must(template.New("image").
</article>
`))
var songTmpl = template.Must(template.New("song").
var songTmpl = template.Must(baseTmpl.New("song").
	Funcs(funcs).Parse(`
<article id="{{ .Id }}" class="song">
	{{- if .Title }}
	<header>
		<h1>{{ .Title }}</h1>
		<a class="permalink" href="#{{ .Id }}">∞</a>
		{{- if .Date }}<time>{{ .Date }}</time>{{ end -}}
	</header>
	{{- end }}
	{{- template "title" . }}
	<audio src="{{ safe_url .URL }}" controls>
		Your browser can't play {{ .URL }}.
	</audio>
@@ -260,14 +261,10 @@ var songTmpl = template.Must(template.New("song").
</article>
`))
var textTmpl = template.Must(template.New("text").
var textTmpl = template.Must(baseTmpl.New("text").
	Funcs(funcs).Parse(`
<article id="{{ .Id }}" class="text">
	<header>
		<h1>{{ .Title }}</h1>
		<a class="permalink" href="#{{ .Id }}">∞</a>
		{{- if .Date }}<time>{{ .Date }}</time>{{ end -}}
	</header>
	{{- template "title" . }}
	{{- if .Content }}
	{{ markdown .Content }}
@@ -275,16 +272,9 @@ var textTmpl = template.Must(template.New("text").
</article>
`))
var videoTmpl = template.Must(template.New("video").
	Funcs(funcs).Parse(`
var videoTmpl = template.Must(baseTmpl.Parse(`
<article id="{{ .Id }}" class="video">
	{{- if .Title }}
	<header>
		<h1>{{ .Title }}</h1>
		<a class="permalink" href="#{{ .Id }}">∞</a>
		{{- if .Date }}<time>{{ .Date }}</time>{{ end -}}
	</header>
	{{- end }}
	{{- template "title" . }}
	<iframe width="560" height="315" src="https://www.youtube.com/embed/{{ .URL }}" frameborder="0" allowfullscreen></iframe>
	{{- if .Content }}