feat(lsp): add gh_action_ls for github actions

Author: charliie-dev

lua/core/settings.lua

@@ -113,8 +113,7 @@ settings["lsp_deps"] = {
 	"clangd",
 	-- "docker_compose_language_service",
 	"dockerls",
-	-- NOTE: not-yet registered in mason.nvim, install it via `npm i -g gh-actions-language-server`
-	-- "gh_actions_ls",
+	"gh_actions_ls",
 	"gitlab_ci_ls",
 	"html",
 	"htmx",

lua/modules/configs/completion/servers/gh_actions_ls.lua

@@ -1,33 +1,20 @@
 -- https://github.com/neovim/nvim-lspconfig/blob/master/lua/lspconfig/configs/gh_actions_ls.lua
 return {
 	cmd = { "gh-actions-language-server", "--stdio" },
-	filetypes = { "yaml.github" },
+	filetypes = { "yaml" },
 
-	-- Only attach to yaml files that are GitHub workflows instead of all yaml
-	-- files. (A nil root_dir and no single_file_support results in the LSP not
-	-- attaching.) For details, see #3558
-	root_dir = function(filename)
-		local dirs_to_check = {
-			".github/workflows",
-			".forgejo/workflows",
-			".gitea/workflows",
-		}
-
-		local dir = vim.fs.dirname(filename)
-		for _, subdir in ipairs(dirs_to_check) do
-			local match = vim.fs.find(subdir, { path = dir, upward = true })[1]
-			if match and vim.fn.isdirectory(match) == 1 and vim.fs.dirname(filename) == match then
-				return match
-			end
+	-- `root_dir` ensures that the LSP does not attach to all yaml files
+	root_dir = function(bufnr, on_dir)
+		local parent = vim.fs.dirname(vim.api.nvim_buf_get_name(bufnr))
+		if
+			vim.endswith(parent, "/.github/workflows")
+			or vim.endswith(parent, "/.forgejo/workflows")
+			or vim.endswith(parent, "/.gitea/workflows")
+		then
+			on_dir(parent)
 		end
-
-		return nil
 	end,
 
-	-- Disabling "single file support" is a hack to avoid enabling this LS for
-	-- every random yaml file, so `root_dir()` can control the enablement.
-	single_file_support = false,
-
 	capabilities = {
 		workspace = {
 			didChangeWorkspaceFolders = {

lua/modules/configs/completion/servers/yamlls.lua

@@ -2,9 +2,7 @@
 return {
 	cmd = { "yaml-language-server", "--stdio" },
 	filetypes = { "yaml", "yaml.docker-compose", "yaml.gitlab" },
-	root_dir = function(fname)
-		return vim.fs.dirname(vim.fs.find(".git", { path = fname, upward = true })[1])
-	end,
+	root_markers = { ".git" },
 	single_file_support = true,
 	debounce_text_changes = 150,
 	settings = {
@@ -24,6 +22,12 @@ return {
 			},
 			schemas = require("schemastore").yaml.schemas({
 				extra = {
+					{
+						name = "github-action",
+						description = "github-action YAML schema",
+						fileMatch = { "*/.github/workflows/*.{yml,yaml}" },
+						url = "https://json.schemastore.org/github-workflow.json",
+					},
 					{
 						name = "docker-compose",
 						description = "docker-compose YAML schema",