Does anyone know if a conditional (such as 'not') can be applied in a taskwarrior filter.
I want to list all tasks except for the ones related to one project.
Say I have projects A thru F, I want all tasks except the ones from project C. It looks like this is possible with tags (using a negative sign) but I cannot get it to work for projects.
You can use the ".not" modifier on any of the TaskWarrior filters, which flips the selection of tasks. Typing
task project:C
would select all the tasks in project C, so:
task project.not:C
selects all tasks not in project C.