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Embed built-in templates with embed.FS

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This commit is contained in:
Adnan Maolood 2021-02-27 15:56:23 -05:00
parent 00761632a9
commit d565d4b8c8
1 changed files with 19 additions and 49 deletions
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68
templates.go
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@ -1,6 +1,7 @@
package main
import (
"embed"
"io/ioutil"
"os"
pathpkg "path"
@ -9,6 +10,9 @@ import (
"text/template"
)
//go:embed templates
var builtinTemplates embed.FS
// Templates contains site templates.
type Templates struct {
tmpls map[string]*template.Template
@ -31,17 +35,25 @@ func (t *Templates) Funcs(funcs template.FuncMap) {
// LoadDefault loads the default templates.
// Should be called after Funcs.
func (t *Templates) LoadDefault() {
t.LoadTemplate("/_default/index.gmi", index_gmi)
t.LoadTemplate("/_default/page.gmi", page_gmi)
t.LoadTemplate("/_default/atom.xml", atom_xml)
t.LoadTemplate("/_default/output.html", output_html)
t.loadDefault("index.gmi")
t.loadDefault("page.gmi")
t.loadDefault("atom.xml")
t.loadDefault("output.html")
}
func (t *Templates) loadDefault(name string) {
b, err := builtinTemplates.ReadFile("templates/" + name)
if err != nil {
panic(err)
}
t.LoadTemplate("/_default/"+name, b)
}
// LoadTemplate loads a template from the provided path and content.
func (t *Templates) LoadTemplate(path string, content string) {
func (t *Templates) LoadTemplate(path string, content []byte) {
tmpl := template.New(path)
tmpl.Funcs(t.funcs)
template.Must(tmpl.Parse(content))
template.Must(tmpl.Parse(string(content)))
t.tmpls[path] = tmpl
}
@ -58,7 +70,7 @@ func (t *Templates) Load(dir string) error {
}
// Remove directory from beginning of path
path = strings.TrimPrefix(path, dir)
t.LoadTemplate(path, string(b))
t.LoadTemplate(path, b)
}
return nil
})
@ -72,45 +84,3 @@ func (t *Templates) FindTemplate(path string, tmpl string) *template.Template {
}
return t.tmpls[pathpkg.Join("/_default", tmpl)]
}
// Default index template
const index_gmi = `# {{ .Title }}
{{ if .Content }}
{{ .Content }}{{ end }}
{{ range .Pages }}=> {{ .Path }} {{ if not .Date.IsZero -}}
{{.Date.Format "2006-01-02"}} {{end}}{{.Title}}
{{ end -}}`
// Default page template
const page_gmi = `# {{ .Title }}
{{- if not .Date.IsZero }}
Posted on {{ .Date.Format "2006-01-02" }}{{ end }}
{{ .Content }}`
// Default template for html output
const output_html = `<!DOCTYPE html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>{{ .Title }}</title>
{{ .Content }}`
// Default atom feed template
const atom_xml = `<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<id>{{ index site.URLs 0 }}{{ .Path }}</id>
<title>{{ .Title }}</title>
<updated>{{ .Updated.Format "2006-01-02T15:04:05Z07:00" }}</updated>
<link href="{{ index site.URLs 0 }}{{ .Path }}" rel="alternate"/>
{{ range .Entries }}<entry>
<id>{{ index site.URLs 0 }}{{ .Path }}</id>
<title>{{ .Title }}</title>
<updated>{{ .Date.Format "2006-01-02T15:04:05Z07:00" }}</updated>
{{- $path := .Path }}
{{- range site.URLs }}
<link href="{{ . }}{{ $path }}" rel="alternate"/>
{{- end }}
</entry>
{{ end -}}
</feed>`