* [#62] Support functions as formatters
Closes#62.
Lets you use a lisp function as a formatter. This gives apheleia a lot
more flexibility in regards to what constitutes a formatter. For example
you can now plug an external language server or another tool as a
formatter for use with apheleia.
Here's a very basic example of using indent-line-function with apheleia
after merging this commit. Note: this doesn't take into account any
special local variables in the original buffer such as lisp-body-indent.
It's really just for demonstration purposes and as a proof of concept.
```lisp
(defun apheleia-indent-region+ (orig scratch callback)
(with-current-buffer scratch
(setq-local indent-line-function
(buffer-local-value 'indent-line-function orig))
(indent-region (point-min)
(point-max))
(funcall callback scratch)))
(push '(indent-region . apheleia-indent-region+) apheleia-formatters)
(push '(elisp-mode . indent-region) apheleia-mode-alist)
(push '(lisp-interaction-mode . indent-region) apheleia-mode-alist)
```
* Fix misc-bugs + prevent race conditions
* Update docstring
* Reword a bit
* Add to README
Co-authored-by: Radon Rosborough <radon.neon@gmail.com>
* Evaluate any non-special args in apheleia-formatters (#55)
Allows you to place snippets of elisp within a formatter command that
will be evaluated and substituted in place when apheleia decides to run
that command.
* Update apheleia.el
Co-authored-by: Radon Rosborough <radon.neon@gmail.com>
* Support multiple formatters (#31)
Closes#31
This commit makes it so apheleia can run multiple formatters one after
the other and use the resultant output to format the current buffer.
This works somewhat like a pipeline. The output of one formatter becomes
the input to the next formatter until all formatters have run and then
an RCS patch is built from the resultant output and applied to the
current buffer.
Note: For convenience we internally represent the users configuration as
a list of formatters even when it may only be one. For example if the
user has configured `(python-mode . black)` in apheleia-mode-alist then
internally we interpret that as a formatter list of `(black)` instead of
`black` as we did previously.
* Support multiple formatters (#31)
Closes#31
This commit makes it so apheleia can run multiple formatters one after
the other and use the resultant output to format the current buffer.
This works somewhat like a pipeline. The output of one formatter becomes
the input to the next formatter until all formatters have run and then
an RCS patch is built from the resultant output and applied to the
current buffer.
Note: For convenience we internally represent the users configuration as
a list of formatters even when it may only be one. For example if the
user has configured `(python-mode . black)` in apheleia-mode-alist then
internally we interpret that as a formatter list of `(black)` instead of
`black` as we did previously.
* Make some changes
* Make some changes
* Error when a (not-first) formatter uses file or filepath
* Prevent formatter recieving stdin when using `file'
Co-authored-by: Radon Rosborough <radon.neon@gmail.com>
