feat(elixir-ide): improved Elixir IDE

config.lua

@@ -16,23 +16,86 @@ lvim.lsp.installer.setup.ensure_installed = {
   "css-lsp",
   "typescript-language-server",
   "tailwindcss-language-server",
-  "elixir-ls"
 }
 
+-- Don't allow Mason to handle elixir-ls
+vim.list_extend(lvim.lsp.automatic_configuration.skipped_servers, { "elixirls" })
+
 -- Additional Plugins
+elixir_ls_base_opts = {
+  tag = "v0.11.0",
+}
+
 lvim.plugins = {
+  { -- use "mhanberg/elixir.nvim" if you don't need the debugger
+    "tiberiuc/elixir.nvim", branch = "add-support-for-dap-debugger-path",
+    requires = { "neovim/nvim-lspconfig", "nvim-lua/plenary.nvim" },
+    config = function()
+      local elixir = require("elixir")
+      local opts = {
+        capabilities = require("lvim.lsp").common_capabilities(),
+        on_attach = require("lvim.lsp").common_on_attach,
+        on_init = require("lvim.lsp").common_on_init,
+        settings = elixir.settings({
+          dialyzerEnabled = true,
+          fetchDeps = false,
+          enableTestLenses = true,
+          suggestSpecs = true,
+        }),
+      }
+      opts = vim.tbl_extend("keep", elixir_ls_base_opts, opts)
+      elixir.setup(opts)
+    end,
+  }
 }
 
+lvim.builtin.which_key.mappings["E"] = {
+  name = "Elixir",
+  p = {
+    name = "Pipe",
+    f = { "<cmd>ElixirFromPipe<Cr>", "Convert pipe operator to function call" },
+    t = { "<cmd>ElixirToPipe<cr>", "Convert function call to pipe operator" },
+  },
+  m = { "<cmd>ElixirExpandMacro<Cr>", "Expand macro" },
+  o = { "<cmd>ElixirOutputPanel<Cr>", "Show Elixir output panel" },
+  r = { "<cmd>ElixirRestart<Cr>", "Restart LSP" },
+}
 
+-- Allow tailwindcss inside heex and elixir files for Phoenix projects
 vim.list_extend(lvim.lsp.automatic_configuration.skipped_servers, { "tailwindcss" })
-local opts = {
+local tailwindcss_lsp_opts = {
   root_dir = function(fname)
-    local util = require "lspconfig/util"
-    return util.root_pattern("assets/tailwind.config.js", "tailwind.config.js", "tailwind.config.cjs", "tailwind.js",
+    return require("lspconfig.util").root_pattern("assets/tailwind.config.js", "tailwind.config.js",
+      "tailwind.config.cjs", "tailwind.js",
       "tailwind.cjs")(fname)
   end,
   init_options = {
     userLanguages = { heex = "html", elixir = "html" }
   },
 }
-require("lvim.lsp.manager").setup("tailwindcss", opts)
+require("lvim.lsp.manager").setup("tailwindcss", tailwindcss_lsp_opts)
+
+-- DAP configuration
+local dap = require('dap')
+
+dap.adapters.mix_task = {
+  type = 'executable',
+  command = require("elixir.language_server").debugger_path(elixir_ls_base_opts),
+  args = {}
+}
+
+dap.configurations.elixir = {
+  {
+    type = "mix_task",
+    name = "mix test",
+    task = 'test',
+    taskArgs = { "--trace" },
+    request = "launch",
+    startApps = true, -- for Phoenix projects
+    projectDir = "${workspaceFolder}",
+    requireFiles = {
+      "test/**/test_helper.exs",
+      "test/**/*_test.exs"
+    }
+  },
+}