feat(extension,credo)!: configurable cli options and new default (#322)

Previously, we hard coded the `--strict --all` cli options, but these
really shouldn't be the default.

You can also now pass in the cli options you'd like to use.

Author: mhanberg

lib/next_ls.ex

@@ -1101,7 +1101,8 @@ defmodule NextLS do
 
   defmodule InitOpts.Extensions.Credo do
     @moduledoc false
-    defstruct enable: true
+    defstruct enable: true,
+              cli_options: []
   end
 
   defmodule InitOpts.Extensions do
@@ -1136,7 +1137,8 @@ defmodule NextLS do
               schema(NextLS.InitOpts.Extensions, %{
                 optional(:credo) =>
                   schema(NextLS.InitOpts.Extensions.Credo, %{
-                    optional(:enable) => bool()
+                    optional(:enable) => bool(),
+                    optional(:cli_options) => list(str())
                   }),
                 optional(:elixir) =>
                   map(%{

lib/next_ls/extensions/credo_extension.ex

@@ -88,7 +88,7 @@ defmodule NextLS.CredoExtension do
 
               task =
                 Task.Supervisor.async_nolink(state.task_supervisor, fn ->
-                  case Runtime.call(runtime, {:_next_ls_private_credo, :issues, [path]}) do
+                  case Runtime.call(runtime, {:_next_ls_private_credo, :issues, [state.settings.cli_options, path]}) do
                     {:ok, issues} -> issues
                     _error -> []
                   end

priv/monkey/_next_ls_private_credo.ex

@@ -1,8 +1,9 @@
 defmodule :_next_ls_private_credo do
   @moduledoc false
 
-  def issues(dir) do
-    ["--strict", "--all", "--working-dir", dir]
+  def issues(args, dir) do
+    args
+    |> Kernel.++(["--working-dir", dir])
     |> Credo.run()
     |> Credo.Execution.get_issues()
   end

test/next_ls/extensions/credo_extension_test.exs

@@ -23,7 +23,7 @@ defmodule NextLS.CredoExtensionTest do
     File.write!(foo, """
     defmodule Foo do
       def run() do
-        :ok
+        dbg(:ok)
       end
     end
     """)
@@ -39,7 +39,7 @@ defmodule NextLS.CredoExtensionTest do
   setup :with_lsp
 
   @tag init_options: %{"extensions" => %{"credo" => %{"enable" => false}}}
-  test "disables Credo", %{client: client, foo: foo} = context do
+  test "disables Credo", %{client: client} = context do
     assert :ok == notify(client, %{method: "initialized", jsonrpc: "2.0", params: %{}})
 
     assert_is_ready(context, "my_proj")
@@ -51,6 +51,44 @@ defmodule NextLS.CredoExtensionTest do
     }
   end
 
+  @tag init_options: %{"extensions" => %{"credo" => %{"cli_options" => ["--only", "warning"]}}}
+  test "configures cli options", %{client: client, foo: foo} = context do
+    assert :ok == notify(client, %{method: "initialized", jsonrpc: "2.0", params: %{}})
+
+    assert_is_ready(context, "my_proj")
+    assert_compiled(context, "my_proj")
+
+    assert_notification "window/logMessage", %{
+      "message" => "[NextLS] [extension] Credo initializing with options" <> _,
+      "type" => 4
+    }
+
+    uri = uri(foo)
+
+    assert_notification "textDocument/publishDiagnostics", %{
+      "uri" => ^uri,
+      "diagnostics" => [
+        %{
+          "code" => "Credo.Check.Warning.Dbg",
+          "codeDescription" => %{
+            "href" => "https://hexdocs.pm/credo/Credo.Check.Warning.Dbg.html"
+          },
+          "data" => %{
+            "check" => "Elixir.Credo.Check.Warning.Dbg",
+            "file" => "lib/foo.ex"
+          },
+          "message" => "There should be no calls to dbg.",
+          "range" => %{
+            "end" => %{"character" => 999, "line" => 2},
+            "start" => %{"character" => 4, "line" => 2}
+          },
+          "severity" => 2,
+          "source" => "credo"
+        }
+      ]
+    }
+  end
+
   test "publishes credo diagnostics", %{client: client, foo: foo} = context do
     assert :ok == notify(client, %{method: "initialized", jsonrpc: "2.0", params: %{}})
 
@@ -69,20 +107,20 @@ defmodule NextLS.CredoExtensionTest do
       "uri" => ^uri,
       "diagnostics" => [
         %{
-          "code" => "Credo.Check.Readability.ParenthesesOnZeroArityDefs",
+          "code" => "Credo.Check.Warning.Dbg",
           "codeDescription" => %{
-            "href" => "https://hexdocs.pm/credo/Credo.Check.Readability.ParenthesesOnZeroArityDefs.html"
+            "href" => "https://hexdocs.pm/credo/Credo.Check.Warning.Dbg.html"
           },
           "data" => %{
-            "check" => "Elixir.Credo.Check.Readability.ParenthesesOnZeroArityDefs",
+            "check" => "Elixir.Credo.Check.Warning.Dbg",
             "file" => "lib/foo.ex"
           },
-          "message" => "Do not use parentheses when defining a function which has no arguments.",
+          "message" => "There should be no calls to dbg.",
           "range" => %{
-            "end" => %{"character" => 999, "line" => 1},
-            "start" => %{"character" => 0, "line" => 1}
+            "end" => %{"character" => 999, "line" => 2},
+            "start" => %{"character" => 4, "line" => 2}
           },
-          "severity" => 3,
+          "severity" => 2,
           "source" => "credo"
         },
         %{