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---@brief
---
--- https://github.com/redhat-developer/yaml-language-server
---
--- `yaml-language-server` can be installed via `yarn`:
--- ```sh
--- yarn global add yaml-language-server
--- ```
---
--- To use a schema for validation, there are two options:
---
--- 1. Add a modeline to the file. A modeline is a comment of the form:
---
--- ```
--- # yaml-language-server: $schema=<urlToTheSchema|relativeFilePath|absoluteFilePath}>
--- ```
---
--- where the relative filepath is the path relative to the open yaml file, and the absolute filepath
--- is the filepath relative to the filesystem root ('/' on unix systems)
---
--- 2. Associated a schema url, relative , or absolute (to root of project, not to filesystem root) path to
--- the a glob pattern relative to the detected project root. Check `:checkhealth vim.lsp` to determine the resolved project
--- root.
---
--- ```lua
--- vim.lsp.config('yamlls', {
--- ...
--- settings = {
--- yaml = {
--- ... -- other settings. note this overrides the lspconfig defaults.
--- schemas = {
--- ["https://json.schemastore.org/github-workflow.json"] = "/.github/workflows/*",
--- ["../path/relative/to/file.yml"] = "/.github/workflows/*",
--- ["/path/from/root/of/project"] = "/.github/workflows/*",
--- },
--- },
--- }
--- })
--- ```
---
--- Currently, kubernetes is special-cased in yammls, see the following upstream issues:
--- * [#211](https://github.com/redhat-developer/yaml-language-server/issues/211).
--- * [#307](https://github.com/redhat-developer/yaml-language-server/issues/307).
---
--- To override a schema to use a specific k8s schema version (for example, to use 1.18):
---
--- ```lua
--- vim.lsp.config('yamlls', {
--- ...
--- settings = {
--- yaml = {
--- ... -- other settings. note this overrides the lspconfig defaults.
--- schemas = {
--- ["https://raw.githubusercontent.com/yannh/kubernetes-json-schema/refs/heads/master/v1.32.1-standalone-strict/all.json"] = "/*.k8s.yaml",
--- ... -- other schemas
--- },
--- },
--- }
--- })
--- ```
---@type vim.lsp.Config
return {
cmd = { 'yaml-language-server', '--stdio' },
filetypes = { 'yaml', 'yaml.docker-compose', 'yaml.gitlab', 'yaml.helm-values' },
root_markers = { '.git' },
settings = {
-- https://github.com/redhat-developer/vscode-redhat-telemetry#how-to-disable-telemetry-reporting
redhat = { telemetry = { enabled = false } },
-- formatting disabled by default in yaml-language-server; enable it
yaml = { format = { enable = true } },
},
on_init = function(client)
--- https://github.com/neovim/nvim-lspconfig/pull/4016
--- Since formatting is disabled by default if you check `client:supports_method('textDocument/formatting')`
--- during `LspAttach` it will return `false`. This hack sets the capability to `true` to facilitate
--- autocmd's which check this capability
client.server_capabilities.documentFormattingProvider = true
end,
}
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