2020-09-29 20:42:27 +00:00
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package main
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2020-11-20 17:07:38 +00:00
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import (
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"io/ioutil"
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"os"
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2020-11-22 20:51:07 +00:00
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pathpkg "path"
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2020-11-20 17:07:38 +00:00
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"path/filepath"
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"strings"
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"text/template"
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)
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2020-11-11 00:33:45 +00:00
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2020-11-20 17:07:38 +00:00
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// Templates contains site templates.
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type Templates struct {
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tmpls map[string]*template.Template
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funcs template.FuncMap
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}
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// NewTemplates returns a new Templates with the default templates.
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func NewTemplates() *Templates {
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t := &Templates{
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tmpls: map[string]*template.Template{},
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}
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return t
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}
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// Funcs sets the functions available to newly created templates.
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func (t *Templates) Funcs(funcs template.FuncMap) {
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t.funcs = funcs
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}
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2020-11-22 20:14:50 +00:00
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// LoadDefault loads the default templates.
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// Should be called after Funcs.
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func (t *Templates) LoadDefault() {
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t.LoadTemplate("/_default/index.gmi", index_gmi)
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t.LoadTemplate("/_default/page.gmi", page_gmi)
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t.LoadTemplate("/_default/atom.xml", atom_xml)
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t.LoadTemplate("/_default/output.html", output_html)
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}
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2020-11-20 17:07:38 +00:00
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// LoadTemplate loads a template from the provided path and content.
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func (t *Templates) LoadTemplate(path string, content string) {
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tmpl := template.New(path)
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tmpl.Funcs(t.funcs)
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template.Must(tmpl.Parse(content))
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t.tmpls[path] = tmpl
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}
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// Load loads templates from the provided directory
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func (t *Templates) Load(dir string) error {
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return filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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if info.Mode().IsRegular() {
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b, err := ioutil.ReadFile(path)
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if err != nil {
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return err
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}
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// Remove directory from beginning of path
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path = strings.TrimPrefix(path, dir)
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t.LoadTemplate(path, string(b))
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}
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return nil
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})
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}
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2020-09-29 20:42:27 +00:00
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2020-11-22 20:51:07 +00:00
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// FindTemplate returns a template for the given path, or the default template if it does not exist.
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func (t *Templates) FindTemplate(path string, tmpl string) *template.Template {
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tmplPath := pathpkg.Join(path, tmpl)
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if t, ok := t.tmpls[tmplPath]; ok {
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return t
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}
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2020-11-22 20:51:07 +00:00
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return t.tmpls[pathpkg.Join("/_default", tmpl)]
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}
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2020-09-29 20:42:27 +00:00
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2020-11-20 17:07:38 +00:00
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// Default index template
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const index_gmi = `# {{ .Title }}
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{{ if .Content }}
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{{ .Content }}{{ end }}
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{{ range .Pages }}=> {{ .Path }} {{ if not .Date.IsZero -}}
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{{.Date.Format "2006-01-02"}} {{end}}{{.Title}}
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2020-09-30 01:30:50 +00:00
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{{ end -}}`
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2020-09-29 20:42:27 +00:00
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2020-10-01 01:57:59 +00:00
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// Default page template
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2020-09-29 20:42:27 +00:00
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const page_gmi = `# {{ .Title }}
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{{- if not .Date.IsZero }}
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2020-11-25 01:09:55 +00:00
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Posted on {{ .Date.Format "2006-01-02" }}{{ end }}
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2020-09-29 20:42:27 +00:00
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{{ .Content }}`
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2020-10-01 01:57:59 +00:00
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// Default template for html output
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const output_html = `<!DOCTYPE html>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<title>{{ .Title }}</title>
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{{ .Content }}`
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2020-11-22 20:14:50 +00:00
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// Default atom feed template
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const atom_xml = `<?xml version="1.0" encoding="utf-8"?>
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<feed xmlns="http://www.w3.org/2005/Atom">
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<id>{{ site.URL }}{{ .Path }}</id>
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<title>{{ .Title }}</title>
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<updated>{{ .Updated.Format "2006-01-02T15:04:05Z07:00" }}</updated>
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<link href="{{ site.URL }}{{ .Path }}" rel="alternate">
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{{ range .Entries }}<entry>
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<id>{{ site.URL }}{{ .Path }}</id>
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<title>{{ .Title }}</title>
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<updated>{{ .Date.Format "2006-01-02T15:04:05Z07:00" }}</updated>
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<link href="{{ site.URL }}{{ .Path }}" rel="alternate">
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</entry>
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{{ end -}}
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</feed>`
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