Update the Command interface to include a Description() method.
Implement the method for all commands using short descriptions inspired
from the aerc(1) man page.
Return the description values along with command names so that they can
be displayed in completion choices.
Implements: https://todo.sr.ht/~rjarry/aerc/271
Signed-off-by: Robin Jarry <robin@jarry.cc>
Tested-by: Bojan Gabric <bojan@bojangabric.com>
Tested-by: Jason Cox <me@jasoncarloscox.com>
Acked-by: Tim Culverhouse <tim@timculverhouse.com>
Register all commands with the same function and store them in the same
map.
Use bit flags to determine in which contexts each command should be
available.
Remove duplicate commands now that the same command can be exposed in
multiple contexts.
Refactor API to allow executing commands from other commands without
import cycles.
Signed-off-by: Robin Jarry <robin@jarry.cc>
Tested-by: Bence Ferdinandy <bence@ferdinandy.com>
Tested-by: Johannes Thyssen Tishman <johannes@thyssentishman.com>
