mirror of
https://git.sr.ht/~rjarry/aerc
synced 2025-07-09 07:00:21 +02:00
a5bc7ccf0c
github.com/mitchellh/go-homedir has not received any update since 2019. The last release of github.com/kyoh86/xdg was in 2020 and it has been marked as deprecated by its author. Replace these with internal functions. Signed-off-by: Robin Jarry <robin@jarry.cc> Reviewed-by: Moritz Poldrack <moritz@poldrack.dev>
105 lines
2 KiB
Go
105 lines
2 KiB
Go
package templates
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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"reflect"
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"text/template"
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"git.sr.ht/~rjarry/aerc/lib/xdg"
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"git.sr.ht/~rjarry/aerc/models"
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)
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func findTemplate(templateName string, templateDirs []string) (string, error) {
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for _, dir := range templateDirs {
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templateFile := xdg.ExpandHome(dir, templateName)
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if _, err := os.Stat(templateFile); os.IsNotExist(err) {
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continue
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}
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return templateFile, nil
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}
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return "", fmt.Errorf(
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"Can't find template %q in any of %v ", templateName, templateDirs)
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}
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func ParseTemplateFromFile(
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name string, dirs []string, data models.TemplateData,
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) (io.Reader, error) {
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templateFile, err := findTemplate(name, dirs)
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if err != nil {
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return nil, err
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}
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emailTemplate, err := template.New(name).
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Funcs(templateFuncs).ParseFiles(templateFile)
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if err != nil {
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return nil, err
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}
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var body bytes.Buffer
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if err := Render(emailTemplate, &body, data); err != nil {
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return nil, err
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}
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return &body, nil
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}
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func ParseTemplate(name, content string) (*template.Template, error) {
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return template.New(name).Funcs(templateFuncs).Parse(content)
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}
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func Render(t *template.Template, w io.Writer, data models.TemplateData) error {
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return t.Execute(w, data)
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}
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// builtins is a slice of keywords and functions built into the Go standard
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// library for templates. Since they are not exported, they are hardcoded here.
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var builtins = []string{
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// from the Go standard library: src/text/template/parse/lex.go
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"block",
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"break",
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"continue",
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"define",
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"else",
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"end",
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"if",
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"range",
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"nil",
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"template",
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"with",
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// from the Go standard library: src/text/template/funcs.go
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"and",
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"call",
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"html",
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"index",
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"slice",
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"js",
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"len",
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"not",
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"or",
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"print",
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"printf",
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"println",
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"urlquery",
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"eq",
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"ge",
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"gt",
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"le",
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"lt",
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"ne",
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}
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func Terms() []string {
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var s []string
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t := reflect.TypeOf((*models.TemplateData)(nil)).Elem()
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for i := 0; i < t.NumMethod(); i++ {
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s = append(s, "."+t.Method(i).Name)
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}
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for fnStr := range templateFuncs {
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s = append(s, fnStr)
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}
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s = append(s, builtins...)
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return s
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}
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