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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"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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// Load default templates
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t.LoadTemplate("/index.gmi", index_gmi)
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t.LoadTemplate("/page.gmi", page_gmi)
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t.LoadTemplate("/feed.gmi", feed_gmi)
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t.LoadTemplate("/output.html", output_html)
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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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// 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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2020-11-20 17:07:38 +00:00
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// FindTemplate searches recursively for a template for the given path.
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func (t *Templates) FindTemplate(path string, tmpl string) *template.Template {
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for {
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tmplPath := filepath.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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slash := path == "/"
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path = filepath.Dir(path)
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if slash && path == "/" {
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break
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}
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}
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return nil
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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 = `# Index of {{ .Path }}
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{{ range .Dirs }}=> {{ .Path }}
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2020-09-30 01:30:50 +00:00
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{{ end -}}
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2020-11-20 17:07:38 +00:00
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{{ range .Pages }}=> {{ .Path }}
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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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{{ .Content }}`
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2020-11-20 17:07:38 +00:00
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// Default feed template
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const feed_gmi = `# {{ .Title }}
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Last updated at {{ .Updated.Format "2006-01-02" }}
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{{ range .Entries }}=> {{ .Path }} {{ .Date.Format "2006-01-02" }} {{ .Title }}
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{{ end -}}`
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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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