add .OriginalMIMEType variable to reply template

commands/msg/reply.go

@@ -157,6 +157,17 @@ func (reply) Execute(aerc *widgets.Aerc, args []string) error {
 			buf := new(bytes.Buffer)
 			buf.ReadFrom(reader)
 			original.Text = buf.String()
+			if len(msg.BodyStructure.Parts) == 0 {
+				original.MIMEType = fmt.Sprintf("%s/%s",
+					msg.BodyStructure.MIMEType, msg.BodyStructure.MIMESubType)
+			} else {
+				// TODO: still will be "multipart/mixed" for mixed mails with
+				// attachments, fix this after aerc could handle responding to
+				// such mails
+				original.MIMEType = fmt.Sprintf("%s/%s",
+					msg.BodyStructure.Parts[0].MIMEType,
+					msg.BodyStructure.Parts[0].MIMESubType)
+			}
 			addTab()
 		})
 		return nil

doc/aerc-templates.7.scd

@@ -60,6 +60,12 @@ available always.
 	Example:
 	{{.Subject}}
 
+*MIME Type*
+	MIME Type is available for quoted reply.
+
+	- OriginalMIMEType: MIME type info of quoted mail part. Usually
+	  "text/plain" or "text/html".
+
 *Original Message*
 	When using quoted reply or forward, the original message is available.
 	It can be used using two functions that are available to templates.

lib/templates/template.go

@@ -25,6 +25,7 @@ type TemplateData struct {
 	OriginalText     string
 	OriginalFrom     []*mail.Address
 	OriginalDate     time.Time
+	OriginalMIMEType string
 }
 
 func TestTemplateData() TemplateData {
@@ -39,6 +40,7 @@ func TestTemplateData() TemplateData {
 		Date:     time.Now().Format("Mon Jan 2, 2006 at 3:04 PM"),
 		From:     "John Doe <john@example.com>",
 		Text:     "This is only a test text",
+		MIMEType: "text/plain",
 	}
 
 	return ParseTemplateData(defaults, original)
@@ -56,6 +58,7 @@ func ParseTemplateData(defaults map[string]string, original models.OriginalMail)
 		OriginalText:     original.Text,
 		OriginalFrom:     parseAddressList(original.From),
 		OriginalDate:     originalDate,
+		OriginalMIMEType: original.MIMEType,
 	}
 	return td
 }

models/models.go

@@ -170,4 +170,5 @@ type OriginalMail struct {
 	Date     string
 	From     string
 	Text     string
+	MIMEType string
 }