compose: add default template for new messages

Allow defining a default template to use when composing new messages.
Add an example to be used for new users.

Signed-off-by: Robin Jarry <robin@jarry.cc>

Makefile

@@ -99,6 +99,7 @@ install: all
 	install -m755 filters/hldiff $(DESTDIR)$(SHAREDIR)/filters/hldiff
 	install -m755 filters/html $(DESTDIR)$(SHAREDIR)/filters/html
 	install -m755 filters/plaintext $(DESTDIR)$(SHAREDIR)/filters/plaintext
+	install -m644 templates/new_message $(DESTDIR)$(SHAREDIR)/templates/new_message
 	install -m644 templates/quoted_reply $(DESTDIR)$(SHAREDIR)/templates/quoted_reply
 	install -m644 templates/forward_as_body $(DESTDIR)$(SHAREDIR)/templates/forward_as_body
 	install -m644 config/default_styleset $(DESTDIR)$(SHAREDIR)/stylesets/default

commands/account/compose.go

@@ -30,6 +30,9 @@ func (Compose) Execute(aerc *widgets.Aerc, args []string) error {
 		return err
 	}
 	acct := aerc.SelectedAccount()
+	if template == "" {
+		template = aerc.Config().Templates.NewMessage
+	}
 
 	composer, err := widgets.NewComposer(aerc, acct,
 		aerc.Config(), acct.AccountConfig(), acct.Worker(),

config/aerc.conf.in

@@ -224,6 +224,11 @@ new-email=
 # default: @SHAREDIR@/templates/
 template-dirs=@SHAREDIR@/templates/
 
+# The default template to be used for new messages.
+#
+# default: new_message
+new-message=new_message
+
 # The default template to be used for quoted replies.
 #
 # default: quoted_reply

config/config.go

@@ -146,6 +146,7 @@ type TriggersConfig struct {
 
 type TemplateConfig struct {
 	TemplateDirs []string `ini:"template-dirs", delim:":"`
+	NewMessage   string   `ini:"new-message"`
 	QuotedReply  string   `ini:"quoted-reply"`
 	Forwards     string   `ini:"forwards"`
 }
@@ -595,6 +596,7 @@ func LoadConfigFromFile(root *string, sharedir string) (*AercConfig, error) {
 
 		Templates: TemplateConfig{
 			TemplateDirs: []string{path.Join(sharedir, "templates")},
+			NewMessage:   "new_message",
 			QuotedReply:  "quoted_reply",
 			Forwards:     "forward_as_body",
 		},

doc/aerc-config.5.scd

@@ -382,6 +382,11 @@ These options are configured in the *[templates]* section of aerc.conf.
 
 	Default: "/usr/share/aerc/templates"
 
+*new-message*
+	The default template to be used for new messages.
+
+	Default: "new_message"
+
 *quoted-reply*
 	The default template to be used for quoted replies.
 

templates/new_message

@@ -0,0 +1 @@
+X-Mailer: aerc {{version}}