Unable to format .svelte files

[chrisolsen]

The following language config doesn't run on save or when I manually run :format, but the second snippet, run from the command line, does format the code properly.

Any ideas to why this is?

[[language]]
name = "svelte"
auto-format = true
formatter = { command = 'prettier', args = ["--plugin", "prettier-plugin-svelte", "--write"] }

prettier --plugin prettier-plugin-svelte --write .

Using helix 23.05 (7f5940b)

[SaxJ]

Helix expects the formatter to read the file from stdin, and output the formatted file to stdout.

Prettier doesn't do this by default.

Try prettier with the --stdin option maybe:

[[language]]
name = "svelte"
auto-format = true
formatter = { command = 'prettier', args = ["--plugin", "prettier-plugin-svelte", "--stdin"] }

[sukidhar]

what worked for me in case anyone needs new svelte config as of the date.

{
  "useTabs": true,
  "singleQuote": false,
  "trailingComma": "none",
  "printWidth": 100,
  "semi": false,
  "plugins": ["prettier-plugin-svelte", "prettier-plugin-tailwindcss"],
  "overrides": [
    {
      "files": "*.svelte",
      "options": {
        "parser": "svelte"
      }
    }
  ]
}

[[language]]
name = "svelte"
auto-format = true
language-servers = ["tailwindcss-ls", "svelteserver", "emmet-ls", "eslint-ls" ]
formatter = { command = 'prettier', args = ["--parser", "svelte"] }