mirror of
https://github.com/1f349/lavender.git
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47 lines
885 B
Go
47 lines
885 B
Go
package pages
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import (
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"embed"
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_ "embed"
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"errors"
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"github.com/1f349/overlapfs"
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"html/template"
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"io"
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"io/fs"
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"log"
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"os"
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"path/filepath"
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"sync"
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)
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var (
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//go:embed *.go.html
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flowPages embed.FS
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flowTemplates *template.Template
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loadOnce sync.Once
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)
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func LoadPages(wd string) (err error) {
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loadOnce.Do(func() {
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var o fs.FS = flowPages
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if wd != "" {
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wwwDir := filepath.Join(wd, "www")
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err = os.Mkdir(wwwDir, os.ModePerm)
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if err != nil && !errors.Is(err, os.ErrExist) {
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return
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}
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wdFs := os.DirFS(wwwDir)
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o = overlapfs.OverlapFS{A: flowPages, B: wdFs}
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}
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flowTemplates, err = template.ParseFS(o, "*.go.html")
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})
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return err
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}
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func RenderPageTemplate(wr io.Writer, name string, data any) {
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err := flowTemplates.ExecuteTemplate(wr, name+".go.html", data)
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if err != nil {
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log.Printf("Failed to render page: %s: %s\n", name, err)
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}
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}
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