Easily manage embedded multiline notes in Taskwarrior

While Taskwarrior provides a robust system for annotating tasks, using these to include extensive notes on a task is cumbersome and difficult to edit in my experience.

There are some third party scripts that associate files with tasks, however this involves a whole other system that has to be synchronized/maintained, which seems unnecessary given Taskwarrior's current syncing capabilities.

OneNote manages notes in a custom data field directly in Taskwarrior, and automatically opens a pipe editor for managing notes efficiently.

• Taskwarrior (preferably 2.5.2 or greater)
• Bash
• Vipe pipe editor (readily available in the moreutils package on most platforms)
• Python (if using the add/modify hooks)

OneNote expects a notes UDA to be available for data storage.

Add this to your .taskrc config file with the following commands:

task config uda.notes.type string
task config uda.notes.label Notes

Place the onenote script anywhere in your PATH and make sure it's executable.

The optional add/modify hooks manage a Taskwarrior annotation related to the existence of notes on a task in an intelligent fashion:

• Adds an annotation when a new note is added
• Updates the annotation entry date if notes are updated
• Removes the annotation if notes are completely removed

To use the hook, copy or symlink manage_notes_annotation.py to your Taskwarrior hooks directory, and make sure it's executeable.

• For the add hook, name it on-add-onenote-manage-notes-annotation.py
• For the modify hook, name it on-modify-onenote-manage-notes-annotation.py

To add/edit notes attached to a task, execute onenote <task_id>, which automatically opens an editor for the notes.

Upon save/exit of the editor, the new notes are updated on the task.

Vipe, the default pipe editor, opens the note in Vim. You can override this with your own pipe editor by setting the ONENOTE_PIPE_EDITOR environment variable to another pipe editor available in your path.

To remove notes, you can use the procedure above and completely remove all content in the editor, or for a shortcut modify the notes attribute directly:

task <task_id> modify notes:

Notes can also be piped from other processes directly to a task:

echo "foo" | onenote <task_id> -

Just be aware this will overwrite any existing notes on the task!

OneNote sets the environment variable ONENOTE_TASK for the pipe editor process, the value of which is the task ID/UUID associated with the note.

You can configure default content for an empty note by setting the ONENOTE_DEFAULT_CONTENT environment variable. If OneNote detects that the opened note is empty, it will insert the configured default content instead. If the note has any content at all, the default content will not be added to the note.

This is an extremely handy feature when used with something like Vim's modelines. For example, the VimOutliner plugin registers the votl filetype for its outlining functionality. With a Bash alias like this, you can ensure that the note always contains the correct modeline to activate the outliner, even if the note was originally empty:

alias outline="ONENOTE_DEFAULT_CONTENT='# vi: ft=votl' onenote"

The included vim-line-to-task.sh script provides integrated support for converting a line of text in a note to a task on the same project as the task that contains the note. For example, to configure the script to work with Vim/Vipe, add the following to your .vimrc:

nnoremap <silent> <Leader>t :.w !/path/to/vim-line-to-task.sh<CR>

The script also has basic support for converting a line of text outside of OneNote's default editor, in this case it will assign the task to your configured default project.

If you're using a version of VIT that supports map commands, you can easily add a command to open a task's notes via onenote:

# Open OneNote for the current task.
o = :!wr onenote {TASK_UUID}<Enter>

Then in VIT, highlighting a task and hitting the o key will open the notes editor, and saving will return you to VIT -- pretty convenient!

The issue tracker for this project is provided to file bug reports, feature requests, and project tasks -- support requests are not accepted via the issue tracker. For all support-related issues, including configuration, usage, and training, consider hiring a competent consultant.

OneNote has full unit test coverage. They can be run with:

cd /path/to/onenote
./run-tests.sh

Python >= 2.7 and the basht testing framework are required.

While it's possible to modify the notes UDA directly using standard Taskwarrior syntax, it's not advisable (except in the deletion case), as, by necessity, multiline UDA fields are stored as a single-line string with newline separators, which would be pretty tedious to navigate directly.

Because of this bug, in Taskwarrior versions less than 2.5.2, newlines are represented internally by the marker ###NEWLINE###. This is not an issue in TaskWarrior versions from 2.5.2 on. If you use OneNote with a Taskwarrior version less than 2.5.2, then upgrade to Taskwarrior version 2.5.2 or greater, you can use the convert-5.1-to-5.2.sh script to upgrade your tasks, but you are strongly encouraged to run convert-5.1-to-5.2.sh --help first and read the instructions -- the script will automatically edit ALL of your tasks!