All notable changes to this project will be documented in this file. The format is based on Keep a Changelog.
- The order of entries in
apheleia-mode-alist
is no longer as important. Specifically, if two different mode entries inapheleia-mode-alist
match the current buffer, then the more specific one is used, even if it comes later. This is generally speaking what you would expect to happen. For other cases, such as ordering of regex entries, or modes versus regexes, order is respected as before ([#206]). - Disable formatting of go module files with gofmt. This was never supported (#214).
- Remove support for Emacs 26 (#215).
- New user option
apheleia-formatters-respect-indent-level
, defaulting tot
. You can set this tonil
to disable Apheleia configuring formatters to use the same indent settings as the Emacs major mode is using (#208).
- Use the
prettier-json
formatter forjs-json-mode
(#209). - Prettier is now enabled in
svelte-mode
. - More tree-sitter based major modes have been added to
apheleia-mode-alist
([#191]). - Built-in formatters now use a new
"apheleia-npx"
built-in script instead of the legacynpx
keyword. The effect of the new script is the same, except that it also works with Yarn PNP projects as well asnode_modules
style projects ([#200]). - Autoload the apheleia-goto-error command (#215).
- Use
lisp-indent
as default formatter foremacs-lisp-mode
(#223) - Use
hclfmt
for formatting hashicorp HCL files (#231)
- Refactored the organisation of the apheleia package for ease of understanding and usability (#215).
- The new
scripts/pnp-bin.js
script is standalone minified nodejs built from thepnp-bin
repo, extracted from apheleia PR [#200].
ktlint
would emit log messages into its stdout when formatting, and these would get spliced into the source file. This has been fixed by suppressing all logs fromktlint
.- Disable colorized output with the jq formatter (#213).
- Fixed apheleia skipped running a formatter on a remote when it isn't installed locally (#215).
- Fixed clang-format formatter did not respect remote file-name component for the assumed file-name (#215).
- purs-tidy for PureScript (#182).
jq
for JSON (#174).gawk
for awk (#187).asmfmt
for assembly (#168).astyle
for C (#169).beautysh
for shell scripts (#170)buildifier
for Bazel Build (#171).cmake-format
for CMake (#172).fourmolu
for haskellhtml-tidy
for HTML/XML (#173).ormolu
for haskell.perltidy
for perl (#175).rubocop
for ruby (#176).ruby-standard
for ruby ([#201])ruff
for python (#236)rufo
for Ruby (#177).yapf
for Python (#196)hclfmt
for HCL (#231)
- You can use
apheleia-inhibit
as a file-local variable to disable Apheleia turning on automatically for a file or directory. You can also useapheleia-inhibit-functions
to configure custom logic to prevent Apheleia from turning on automatically under certain circumstances, without needing to adjust file-local variables. See #134 and #138. apheleia-mode
lighter is now customizable (#143).
- shfmt is no longer enabled by default in order to prevent corruption of zsh scripts. Re-enabling shfmt in a future release is intended, but depends on further implementation work in Apheleia to only enable it for supported shells.
- Emacs 29's tree-sitter-based major modes have been added to
apheleia-mode-alist
(#145, #148, #151, #155).
- If a formatter exited with a zero exit code when being killed by a signal (even though that is really weird behavior and arguably a bug in the formatter), then if a file was saved multiple times in quick succession, its contents could be erased and replaced with an error message from the formatter. This has been fixed. See #131 for more details.
- Npx commands in apheleia-formatters are not overwritten when expanding binary path to node_modules directory (#152).
- Error is no longer reported when the first element of a command is an evaluable form rather than a literal string ([#156]).
crystal tool format
for Crystal (#137).- gofumpt and goimports for Go (#147).
caddy fmt
for Caddyfile, used by Caddy 2 (#136)
- shfmt uses 4 spaces instead of tabs by default.
- Formatters using
'filepath
(OCamlFormat and Prettier) are no longer prevented from running on a modified buffer (#109, #110). - Buffer content is now always passed to formatters using a pipe. This fixes issues with formatters that behave differently when receiving input on stdin versus being run on a tty (#119).
- Prettier now specifies
--parser
argument explicitly, so it will work properly even when the name of the file does not match what Prettier expects (e.g..yamllint
will be formatted as YAML by Prettier as long as it is inyaml-mode
). See #103.
- When a formatter has a bug and fails to return anything on stdout (e.g. scalafmt), do not erase the buffer (#116).
- Fix
Error: "Selecting deleted buffer"
which occurred in some circumstances due to a race condition (#123). - Apheleia does not delete the contents of narrowed buffers when running. Instead, it is disabled in narrowed buffers. Support for narrowed buffers may be added in future but it has never been correctly supported in the past (see #43). More at #124, #127.
- Currently, when a formatter invoked via a process isn't installed correctly; it throws an error. It doesn't make sense to attempt to format if we can't find the correct formatter, so instead formatting is only attempted when the formatter is found. #126
- clang-format doesn't handle filenames correctly by default. Support for guessing the flags from first the file name then the major mode in the case of a temporary buffer was added in #128
- Fix handling of formatters using
inplace
in some circumstances (#132).
- elm-format for Elm (#100).
- bean-format for Beancount (#101).
- stylua for Lua (#105).
- Native Emacs indentation of Emacs Lisp code as a formatter (#102).
This is not enabled by default but you can enable it by adding
(emacs-lisp-mode . lisp-indent)
toapheleia-mode-alist
- Prettier supports SCSS instead of SASS. The original support for SASS in Apheleia was a bug because Prettier actually never had support for SASS in the first place, so Apheleia would have failed anyway on trying to format a SASS file.
- The arguments of formatters defined as Elisp functions has changed.
A formatter function should now be a
cl-defun
taking key-value arguments with support for more keys being provided on a later apheleia release (by including&allow-other-keys
in the parameter list). For a list of provided arguments seeapheleia--run-formatter-function
. - Emacs 25 is no longer supported.
- Ocamlformat is now used in
caml-mode
in addition totuareg-mode
(#94).
- Support remote files and buffers that were opened through TRAMP (#33).
- The interface to
apheleia-format-buffer
has changed. You now pass in the symbol of a formatter fromapheleia-formatters
(or a list of them) rather than the actual command. This change improves the ability of Apheleia to report useful error messages and logging. - Stdout and stderr buffers are no longer retained after running a
formatter. Instead, the stderr is appended into an
*apheleia-cmdname-log*
buffer if it fails, or unconditionally if the new user optionapheleia-log-only-errors
is set to nil. See #64, #65. The log buffer is not hidden by default, unlike the old stdout and stderr buffers, but this can be changed with the new user optionapheleia-hide-log-buffers
. Also, the log shows all command output rather than just the latest run. You can add further customizations using the new hookapheleia-formatter-exited-hook
(#69).
- Apheleia can now format buffers that do not have an underlying file (#52).
- You can now use a Lisp function as a formatter, by providing a
symbol or lambda in
apheleia-formatters
rather than a list of strings (#62). The function should be acl-defun
taking key-value arguments with support for more keys being provided on a later apheleia release (by including&allow-other-keys
in the parameter list). For a list of provided arguments seeapheleia--run-formatter-function
. - Formatters that operate on files in place are now supported, by
using the symbol
inplace
in an entry onapheleia-formatters
to stand in for the name of a temporary file that will be modified in place by the formatter (#23).
- The buffer-local variable
apheleia-formatter
is now marked as safe (#74). This allows you to configure the formatter that Apheleia will use in a file-local variable. Note: only formatters already declared inapheleia-formatters
can be used; this does not allow arbitrary shell commands to be specified in file-local variables.
- Allow running the same formatter in multiple buffers in parallel (#64, #65). Previously, when saving a number of files at the same time, the contents of those buffers could be corrupted by a race condition.
- In some circumstances the error
wrong-type-argument bufferp nil
could be reported when running certain formatters under Apheleia. This has been fixed. - Rustfmt is no longer passed the
--unstable-features
and--skip-children
flags, since they are not available on all versions of Rustfmt (#69). - When a formatter cannot be found, orphaned stderr processes are no longer created and left around forever (#47).
- Apheleia no longer resets the major mode to its default value when formatting a buffer. This was never intended and the bug has now been fixed (#58).
- fish_indent for Fish (#68).
- isort is passed different arguments so as not to trigger a crash
that appears to be related to the
--stdout
flag. - latexindent now has its log file disabled so as to avoid cluttering the working directory.
- ocamlformat is now configured to work even outside of detected projects.
- Support multiple formatters (#31). You can now configure a list of
formatters for a major-mode in
apheleia-mode-alist
and they will be run in sequence. - Support evaluating items in
apheleia-formatters
to make formatter commands more dynamic (#50, #55).
- ClangFormat for C/C++
google-java-format
for Java- isort for Python (#51)
- latexindent for LaTeX
- rustfmt for Rust (#24)
mix format
for Elixir (#48)@prettier/plugin-ruby
for Ruby (#49)
- Fix spelling error in generated process names (#32).
- Apheleia no longer conflicts with undo-fu (#39).
- Apheleia no longer triggers
after-set-visited-file-name-hook
, which reduces conflicts with various modes. For example,lsp-mode
will no longer trigger a reconnect every time you save. - Fix inconsistent
:type
spec preventing use ofcustomize-variable
onapheleia-formatters
. - Fix mixed style line ending generated by
diff
(#54) by adding--strip-trailing-cr
todiff
's argument list.
- Prettier is now enabled in
json-mode
.
- Prettier now respects
.prettierignore
(#21). - Apheleia's global mode should no longer trigger warnings about a locally
let-bound
after-save-hook
(#27).
- New: OCamlFormat for Ocaml (#19).
- Previously, there were some race conditions related to switching the current buffer. In particular, if you switched the current buffer right after saving, or save two buffers in quick succession, then it was possible for one buffer to be overwritten or to not be formatted. These problems have been fixed (#8).
- Previously, enabling
undo-tree-auto-save-history
caused Apheleia to mark the buffer as modified after formatting. This has been fixed (#10). - Apheleia now tries harder to accidentally enter an infinite formatting loop (#12).
- There is now a maximum length for the dynamic programming algorithm,
controlled by
apheleia-max-alignment-size
. This prevents Emacs from hanging due to Apheleia. under any circumstances (#4).
- Previously, weirdness could happen if manually running Prettier via
M-x apheleia-format-buffer
on a buffer which was modified from what was written to disk. Now we simply abort running a command that uses thefile
keyword if the buffer is modified, since it will not produce correct results. This should not affect normal usage of Apheleia. - Previously, the buffer could be erased when running Apheleia from a buffer that had no backing file. This has been fixed, and Apheleia can run correctly on buffers both with and without backing files (#9).
- Package
apheleia
- Command
apheleia-format-buffer
- User options:
apheleia-formatters
, with supported formatters:black
prettier
gofmt
terraform
apheleia-mode-alist
apheleia-post-format-hook
- Variable
apheleia-formatter
- Minor mode
apheleia-mode
(andapheleia-global-mode
)