auto-format not running on write

[Nemoos-0]

Summary

The command :format works fine but even if editor.auto-format is set to true the file is not formatted on :write.
Am I missing something?

Reproduction Steps

Set editor.auto-format = true (it should be the default).

Run this to install the python lsp and all its extensions: pip install "python-lsp-server[all]"

Copy/paste this code in a pyton file and open it

def f(x):
    return x



def g(y):
    return y

A warning should appear: E303 too many blank lines.

Running :write does not format the file, but running :format will.

Helix log

Nothing was written in the log file

Platform

Linux

Terminal Emulator

wezterm 20221119-145034-49b9839f

Helix Version

helix 22.12

[the-mikedavis]

auto-format is not enabled by default for python in the language configuration block:

helix/languages.toml

Lines 472 to 482 in 482cc22

	[[language]]
	name = "python"
	scope = "source.python"
	injection-regex = "python"
	file-types = ["py","pyi","py3","pyw","ptl",".pythonstartup",".pythonrc","SConstruct"]
	shebangs = ["python"]
	roots = []
	comment-token = "#"
	language-server = { command = "pylsp" }
	# TODO: pyls needs utf-8 offsets
	indent = { tab-width = 4, unit = " " }

You can set this in your config to enable formatting through the language server on save:

# ~/.config/helix/languages.toml
[[language]]
name = "python"
auto-format = true

[Mofiqul]

I am having the same issue with typescript

[the-mikedavis]

Typescript also has auto-format disabled by default. You can try:

# ~/.config/helix/languages.toml
[[language]]
name = "typescript"
auto-format = true

You could also configure prettier as an external formatter: https://github.com/helix-editor/helix/wiki/External-binary-formatter-configuration#prettier

[statusunknown418]

having the same issue, even after configuring it with prettier, doing :w doesn't format the file (.tsx)

[[language]]
name = "html"
formatter = { command = 'prettier', args = ["--parser", "html"] }
auto-format = true

[[language]]
name = "json"
formatter = { command = 'prettier', args = ["--parser", "json"] }

[[language]]
name = "css"
formatter = { command = 'prettier', args = ["--parser", "css"] }

[[language]]
name = "javascript"
formatter = { command = 'prettier', args = ["--parser", "typescript"] }
auto-format = true

[[language]]
name = "typescript"
formatter = { command = 'prettier', args = ["--parser", "typescript", "--printWidith", "100"] }
auto-format = true

[David-Else]

Did you look at the WIKI recently? There is a new section added reg .tsx, does it work for you OK? https://github.com/helix-editor/helix/wiki/External-binary-formatter-configuration#prettier

[statusunknown418]

it works!!, however I don't know why it's extremely slow, vscode is able format the same file 10x faster 😢

[peteringram0]

Does anyone have a list of LSP that have auto-format as disabled by default at all?

[tennox]

You can check here:
https://github.com/helix-editor/helix/blob/master/languages.toml

[n8henrie]

This seems very confusing to me.

The docs say that auto-format defaults to true: https://docs.helix-editor.com/configuration.html?highlight=auto-format#editor-section

The default languages.toml does not override this default: (in this case for python):

helix/languages.toml

Line 807 in e76020d

[[language]]

The editor tells me that auto-format is enabled:

:get-option auto-format   
true

And yet :w doesn't format my python file unless I manually put auto-format = true into my Python section of my languages.toml.

[Lisible]

Got bitten by the same issue today. I agree that the documentation is confusing about it.