68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
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package html
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import (
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"fmt"
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"html/template"
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"io/fs"
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//"github.com/rs/zerolog/log"
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)
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func addSupportingTemplates(sourceFS fs.FS, t *template.Template) error {
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err := fs.WalkDir(sourceFS, ".", func(path string, d fs.DirEntry, 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 d.IsDir() {
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return nil
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}
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content, err := fs.ReadFile(sourceFS, path)
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if err != nil {
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return fmt.Errorf("error reading template %s: %w", path, err)
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}
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new_t := template.New(path)
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addFuncMap(new_t)
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_, err = new_t.Parse(string(content))
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if err != nil {
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return fmt.Errorf("error parsing '%s': %w", path, err)
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}
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_, err = t.AddParseTree(new_t.Name(), new_t.Tree)
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if err != nil {
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return fmt.Errorf("error adding parse tree '%s': %w", path, err)
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}
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//log.Debug().Str("path", path).Msg("Read template")
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return nil
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})
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if err != nil {
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return fmt.Errorf("error walking template directory: %w", err)
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}
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return nil
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}
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func parseTemplate(sourceFS fs.FS, template_name string) (*template.Template, error) {
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t, err := parseTemplateFile(sourceFS, template_name)
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if err != nil {
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return nil, fmt.Errorf("Failed to parse template: %w", err)
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}
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err = addSupportingTemplates(sourceFS, t)
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if err != nil {
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return nil, fmt.Errorf("Failed to add supporting templates: %w", err)
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}
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return t, nil
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}
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func parseTemplateFile(sourceFS fs.FS, filename string) (*template.Template, error) {
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t := template.New(filename)
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//log.Debug().Str("filename", filename).Msg("parsing template")
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addFuncMap(t)
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content, err := fs.ReadFile(sourceFS, filename)
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if err != nil {
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return nil, fmt.Errorf("error reading template %s: %w", filename, err)
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}
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_, err = t.Parse(string(content))
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if err != nil {
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return nil, fmt.Errorf("error parsing '%s': %w", filename, err)
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}
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return t, nil
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}
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