Pipeto specific mime part format.

While `pipeto --format mimepart` pipes whichever part is currently
selected, the 'html' and 'plain' formats override the selected mime part
(and preferences in settings).

This is useful because the mime type you want displayed in alot isn't
necessarily the one you want piped and also for setting keybindings to
pipe specific mime types to specific applications (plain -> text editor,
html -> web browser).

alot/commands/thread.py

@@ -635,7 +635,8 @@ def apply(self, ui):
     (['--all'], {'action': 'store_true', 'help': 'pass all messages'}),
     (['--format'], {'help': 'output format', 'default': 'raw',
                     'choices': [
-                        'raw', 'decoded', 'id', 'filepath', 'mimepart']}),
+                        'raw', 'decoded', 'id', 'filepath', 'mimepart',
+                        'plain', 'html']}),
     (['--separately'], {'action': 'store_true',
                         'help': 'call command once for each message'}),
     (['--background'], {'action': 'store_true',
@@ -746,7 +747,9 @@ async def apply(self, ui):
                     bodytext = msg.get_body_text()
                     msgtext = '%s\n\n%s' % (headertext, bodytext)
                     pipestrings.append(msgtext)
-                elif self.output_format == 'mimepart':
+                elif self.output_format in ['mimepart', 'plain', 'html']:
+                    if self.output_format in ['plain', 'html']:
+                        mimepart = get_body_part(mail, self.output_format)
                     pipestrings.append(string_sanitize(remove_cte(
                         msg.mime_part, as_string=True)))
 

docs/source/usage/modes/thread.rst

@@ -72,7 +72,7 @@ The following commands are available in thread mode:
 
     optional arguments
         :---all: pass all messages
-        :---format: output format; valid choices are: 'raw','decoded','id','filepath','mimepart' (defaults to: 'raw')
+        :---format: output format; valid choices are: 'raw','decoded','id','filepath','mimepart','plain','html' (defaults to: 'raw')
         :---separately: call command once for each message
         :---background: don't stop the interface
         :---add_tags: add 'Tags' header to the message