weiro/providers/sitebuilder/tmplfns.go

package sitebuilder

import (
	"html/template"
	"net/url"
	"strings"
	"time"

	"lmika.dev/lmika/weiro/models/pubmodel"
)

func templateFns(site pubmodel.Site, opts Options) template.FuncMap {
	return template.FuncMap{
		"url_abs": func(basePath string) (string, error) {
			if site.BaseURL == "" {
				return basePath, nil
			}

			pu, err := url.Parse(site.BaseURL)
			if err != nil {
				return "", err
			}
			pu.Path = joinPath(pu.Path, basePath)
			return pu.String(), nil
		},
		"format_date": func(date time.Time) string {
			loc := opts.RenderTZ
			if loc == nil {
				loc = time.Local
			}
			return date.In(loc).Format("02 Jan 2006")
		},
	}
}

func joinPath(basePath, path string) string {
	return strings.TrimSuffix(basePath, "/") + "/" + strings.TrimPrefix(path, "/")
}