Major refactor of nvim

1 files changed, 141 insertions, 0 deletions

diff --git a/.config/nvim/lua/lsp/null-ls.lua b/.config/nvim/lua/lsp/null-ls.lua
new file mode 100644
index 0000000..81c6648
--- /dev/null
+++ b/.config/nvim/lua/lsp/null-ls.lua
@@ -0,0 +1,141 @@
+local M = {}
+local Log = require "core.log"
+
+local null_ls = require "null-ls"
+
+local nodejs_local_providers = { "prettier", "prettierd", "prettier_d_slim", "eslint_d", "eslint" }
+
+M.requested_providers = {}
+
+function M.get_registered_providers_by_filetype(ft)
+  local matches = {}
+  for _, provider in pairs(M.requested_providers) do
+    if vim.tbl_contains(provider.filetypes, ft) then
+      local provider_name = provider.name
+      -- special case: show "eslint_d" instead of eslint
+      -- https://github.com/jose-elias-alvarez/null-ls.nvim/blob/9b8458bd1648e84169a7e8638091ba15c2f20fc0/doc/BUILTINS.md#eslint
+      if string.find(provider._opts.command, "eslint_d") then
+        provider_name = "eslint_d"
+      end
+      table.insert(matches, provider_name)
+    end
+  end
+
+  return matches
+end
+
+function M.get_missing_providers_by_filetype(ft)
+  local matches = {}
+  for _, provider in pairs(M.requested_providers) do
+    if vim.tbl_contains(provider.filetypes, ft) then
+      local provider_name = provider.name
+
+      table.insert(matches, provider_name)
+    end
+  end
+
+  return matches
+end
+
+local function register_failed_request(ft, provider, operation)
+  if not options.lang[ft][operation]._failed_requests then
+    options.lang[ft][operation]._failed_requests = {}
+  end
+  table.insert(options.lang[ft][operation]._failed_requests, provider)
+end
+
+local function validate_nodejs_provider(provider)
+  local command_path
+  local root_dir
+  if options.builtin.rooter.active then
+    --- use vim-rooter to set root_dir
+    vim.cmd "let root_dir = FindRootDirectory()"
+    root_dir = vim.api.nvim_get_var "root_dir"
+  else
+    --- use LSP to set root_dir
+    local ts_client = require("utils").get_active_client_by_ft "typescript"
+    if ts_client == nil then
+      Log:get_default().error "Unable to determine root directory since tsserver didn't start correctly"
+      return
+    end
+    root_dir = ts_client.config.root_dir
+  end
+  local local_nodejs_command = root_dir .. "/node_modules/.bin/" .. provider._opts.command
+  Log:get_default().debug("checking for local node module: ", vim.inspect(provider))
+
+  if vim.fn.executable(local_nodejs_command) == 1 then
+    command_path = local_nodejs_command
+  elseif vim.fn.executable(provider._opts.command) == 1 then
+    Log:get_default().debug("checking in global path instead for node module", provider._opts.command)
+    command_path = provider._opts.command
+  else
+    Log:get_default().debug("Unable to find node module", provider._opts.command)
+  end
+  return command_path
+end
+
+local function validate_provider_request(provider)
+  if provider == "" or provider == nil then
+    return
+  end
+  -- NOTE: we can't use provider.name because eslint_d uses eslint name
+  if vim.tbl_contains(nodejs_local_providers, provider._opts.command) then
+    return validate_nodejs_provider(provider)
+  end
+  if vim.fn.executable(provider._opts.command) ~= 1 then
+    Log:get_default().warn("Unable to find the path for", vim.inspect(provider))
+    return
+  end
+  return provider._opts.command
+end
+
+-- TODO: for linters and formatters with spaces and '-' replace with '_'
+function M.setup(filetype)
+  for _, formatter in pairs(options.lang[filetype].formatters) do
+    Log:get_default().debug("validating format provider: ", formatter.exe)
+    local builtin_formatter = null_ls.builtins.formatting[formatter.exe]
+    if not vim.tbl_contains(M.requested_providers, builtin_formatter) then
+      -- FIXME: why doesn't this work?
+      -- builtin_formatter._opts.args = formatter.args or builtin_formatter._opts.args
+      -- builtin_formatter._opts.to_stdin = formatter.stdin or builtin_formatter._opts.to_stdin
+      local resolved_path = validate_provider_request(builtin_formatter)
+      if resolved_path then
+        builtin_formatter._opts.command = resolved_path
+        table.insert(M.requested_providers, builtin_formatter)
+        Log:get_default().info("Using format provider", builtin_formatter.name)
+      else
+        -- mark it here to avoid re-doing the lookup again
+        register_failed_request(filetype, formatter.exe, "formatters")
+      end
+    end
+  end
+
+  for _, linter in pairs(options.lang[filetype].linters) do
+    local builtin_diagnoser = null_ls.builtins.diagnostics[linter.exe]
+    Log:get_default().debug("validating lint provider: ", linter.exe)
+    -- special case: fallback to "eslint"
+    -- https://github.com/jose-elias-alvarez/null-ls.nvim/blob/9b8458bd1648e84169a7e8638091ba15c2f20fc0/doc/BUILTINS.md#eslint
+    -- if provider.exe
+    if linter.exe == "eslint_d" then
+      builtin_diagnoser = null_ls.builtins.diagnostics.eslint.with { command = "eslint_d" }
+    end
+    if not vim.tbl_contains(M.requested_providers, builtin_diagnoser) then
+      -- FIXME: why doesn't this work?
+      -- builtin_diagnoser._opts.args = linter.args or builtin_diagnoser._opts.args
+      -- builtin_diagnoser._opts.to_stdin = linter.stdin or builtin_diagnoser._opts.to_stdin
+      local resolved_path = validate_provider_request(builtin_diagnoser)
+      if resolved_path then
+        builtin_diagnoser._opts.command = resolved_path
+        table.insert(M.requested_providers, builtin_diagnoser)
+        Log:get_default().info("Using linter provider", builtin_diagnoser.name)
+      else
+        -- mark it here to avoid re-doing the lookup again
+        register_failed_request(filetype, linter.exe, "linters")
+      end
+    end
+  end
+
+  null_ls.register { sources = M.requested_providers }
+end
+
+return M