Allow multiple priorities on single run fixes #281

[the1ts]

Uses current priority logic and option tests just running multiple times until item and priority pairs are exhausted or stops on first error.

Tests for multiple priorities, multiple re-prioritisations and a couple of errors created. All tests pass.

fixes #281

Usage is: todo.sh pri 1 A 2 B 3 C
which changes priority on lines 1, 2 and 3.

[inkarkat]

I personally can't think of a case where I would need to do multiple priorizations with different priorities, and would prefer a todo.sh pri PRIORITY ITEM# [, ITEM#, ...] syntax, but I understand that this is a matter of taste, and what you've chosen is universal and also rather simple in its implementation.

[TomGranot]

@the1ts / @inkarkat So, if this works as I understand it does, todo.sh pri 246 A 245 B should work if both items exist.
Sorry for hijacking a PR, but context is important:)

I'm getting:

usage: todo.sh pri ITEM# PRIORITY
note: PRIORITY must be anywhere from A to Z.

Thoughts?

EDIT:

Ah, just realized this was merged after latest release.
https://github.com/todotxt/todo.txt-cli/pull/346/files

Guess I'll grab the shell script myself:)

For anyone interested:

1. Clone this repo locally
2. Open the repo's folder, then run make install (Yay for makefiles!)
3. Profit!

[inkarkat]

@TomGranot The error message tells me that you don't have the latest development version of todo.sh installed. If this feature were included, the error would look like this:

$ todo.sh command pri x x x
usage: todo.sh pri ITEM# PRIORITY[, ITEM# PRIORITY, ...]
note: PRIORITY must be anywhere from A to Z.

The last release is v2.12.0 from 12-Aug-2020; this change was introduced a year later. Ah, you've found that out already while I was typing this.

@karbassi How about a new release; it's been a while? Some PRs (#360 and #365 from me, and #375 for the Readme) would be ready for inclusion in that release.