NewTemplateFS parses a new email template by reading files on fsys.
(fsys fs.FS, name string, opts FSTemplate)
| 119 | |
| 120 | // NewTemplateFS parses a new email template by reading files on fsys. |
| 121 | func NewTemplateFS(fsys fs.FS, name string, opts FSTemplate) (*Template, error) { |
| 122 | var ( |
| 123 | shared = template.Must(shared.Clone()) |
| 124 | err error |
| 125 | tmpl = Template{Name: name} |
| 126 | ) |
| 127 | if len(opts.IncludePatterns) > 0 { |
| 128 | shared, err = shared.ParseFS(fsys, opts.IncludePatterns...) |
| 129 | if err != nil { |
| 130 | return nil, err |
| 131 | } |
| 132 | } |
| 133 | tmpl.SubjectTemplate, err = template.Must(shared.Clone()).Parse(opts.SubjectTemplate) |
| 134 | if err != nil { |
| 135 | return nil, err |
| 136 | } |
| 137 | if opts.HTMLTemplateFile != "" { |
| 138 | htmlTemplate := template.Must(shared.Clone()) |
| 139 | if opts.HTMLTemplateBaseFile != "" { |
| 140 | htmlTemplate, err = htmlTemplate.ParseFS(fsys, opts.HTMLTemplateBaseFile) |
| 141 | if err != nil { |
| 142 | return nil, err |
| 143 | } |
| 144 | } |
| 145 | htmlTemplate, err = htmlTemplate.ParseFS(fsys, opts.HTMLTemplateFile) |
| 146 | if err != nil { |
| 147 | return nil, err |
| 148 | } |
| 149 | if opts.HTMLTemplateBaseFile != "" { |
| 150 | tmpl.HTMLTemplate = htmlTemplate.Lookup(opts.HTMLTemplateBaseFile) |
| 151 | } else { |
| 152 | tmpl.HTMLTemplate = htmlTemplate.Lookup(opts.HTMLTemplateFile) |
| 153 | } |
| 154 | } |
| 155 | if opts.TextTemplateFile != "" { |
| 156 | textTemplate := template.Must(shared.Clone()) |
| 157 | if opts.TextTemplateBaseFile != "" { |
| 158 | textTemplate, err = textTemplate.ParseFS(fsys, opts.TextTemplateBaseFile) |
| 159 | if err != nil { |
| 160 | return nil, err |
| 161 | } |
| 162 | } |
| 163 | textTemplate, err = textTemplate.ParseFS(fsys, opts.TextTemplateFile) |
| 164 | if err != nil { |
| 165 | return nil, err |
| 166 | } |
| 167 | if opts.TextTemplateBaseFile != "" { |
| 168 | tmpl.TextTemplate = textTemplate.Lookup(opts.TextTemplateBaseFile) |
| 169 | } else { |
| 170 | tmpl.TextTemplate = textTemplate.Lookup(opts.TextTemplateFile) |
| 171 | } |
| 172 | } |
| 173 | return &tmpl, nil |
| 174 | } |
| 175 | |
| 176 | // TemplateData is the minimal interface Execute needs to render an email template. |
| 177 | type TemplateData interface { |