The minor mode to run format-all only on changed lines instead of whole buffer, this is convenient for large legacy code base that have not conform to formatter yet.
simply add fmo-mode to your desired major mode or globally in prog-mode.
(use-package fmo-mode
:vc (:fetcher github :repo "xeechou/fmo-mode.el")
:custom (fmo-ensure-formatters t)
:hook ((prog-mode . fmo-mode)
;;fmo-mode requires give formatter to format-all to work.
(fmo-mode . format-all-ensure-formatter)))it relies on Diff Hunks to track the changed region of the file, we get a list of change regions. Then we iterative-ly apply format-all-region on the hunks while maintaining a offset, this offset tracks the size of changes of format-all-region for each iteration. Then we shift the hunk accordingly. Note that we apply from top to bottom.
- [ ] I think it is probably easier if we apply
fmo-format-linesbottom-up, that we do not even need to keep track of theoffsetanymore. - [ ] resort to use diff directly referring this-article.
GPL-v3