<2019-05-24 Fri>
For the past couple of months I have been working on tools which allow you
to run linters on the added/modified lines of a Git diff. One of these tools are
magit-diff-flycheck.
This is primarily meant to be used on legacy projects where you do not want to see errors for the whole file but only for the added/modified lines.
The package is published on MELPA package manager and on GitHub under license GNU GPL-3.0.
Examples
Run M-x magit-diff-flycheck in a magit-diff buffer to display a filtered list
of Flycheck errors for the added/modified lines only.
;; Run Flycheck on added/modified lines by default M-x magit-diff-flycheck
Use can also run the command with a prefix which will prompt you for the scope of the errors.
;; Choose scope of error filtering to symbol files or lines C-u M-x magit-diff-flycheck