[vim] Use ruff-lsp instead of efm for Ruff

Unfortunately the `lsp_fix_all_and_format()` function doesn't seem to
apply the code actions consistently.

.config/efm-langserver/config.yaml.symlink

@@ -23,19 +23,6 @@ tools:
     format-command: black -
     format-stdin: true
 
-  ruff: &ruff
-    lint-command: "ruff -n ${INPUT}"
-    lint-stdin: true
-    lint-formats:
-      - "%f:%l:%c: %m"
-    lint-ignore-exit-code: true
-    format-command: ruff --exit-zero --fix -n --stdin-filename ${INPUT} - --unfixable F401,F841
-    format-stdin: true
-
-  ruff-format: &ruff-format
-    format-command: ruff format --stdin-filename ${INPUT} -
-    format-stdin: true
-
   vint: &vint
     lint-command: vint -
     lint-stdin: true
@@ -56,9 +43,6 @@ languages:
     - <<: *djhtml
   lua:
     - <<: *stylua
-  python:
-    - <<: *ruff
-    - <<: *ruff-format
   vim:
     - <<: *vint
   yaml:

.config/nvim.symlink/init.vim

@@ -24,7 +24,7 @@ function! MaybeLSPFormat()
   if exists('b:no_autoformat')
     return
   endif
-  lua vim.lsp.buf.format()
+  lua lsp_fix_all_and_format()
 endfunction
 
 " ~/forks

.config/nvim.symlink/lua/config.lua

@@ -100,6 +100,16 @@ cmp.setup({
 })
 
 -- LSP
+lsp_fix_all_and_format = function()
+    vim.lsp.buf.code_action({
+        apply = true,
+        context = {
+            only = { "source.fixAll.ruff" },
+        },
+    })
+    vim.lsp.buf.format({ async = false, timeout_ms = 5000 })
+end
+
 local nvim_lsp = require("lspconfig")
 
 -- Use an on_attach function to only map the following keys
@@ -119,10 +129,10 @@ local on_attach = function(client, bufnr)
     vim.keymap.set("n", "<leader>r", vim.lsp.buf.references, bufopts)
     -- Formatting
     vim.keymap.set("n", "<leader>f", function()
-        vim.lsp.buf.format({ async = false, timeout_ms = 5000 })
+        lsp_fix_all_and_format()
     end, bufopts)
     vim.keymap.set("v", "<leader>f", function()
-        vim.lsp.buf.format({ async = false })
+        lsp_fix_all_and_format()
     end, bufopts)
     -- Code actions
     vim.keymap.set({ "n", "v" }, "<leader>ca", vim.lsp.buf.code_action, bufopts)
@@ -171,6 +181,15 @@ nvim_lsp.pyright.setup({
         },
     },
 })
+nvim_lsp.ruff_lsp.setup({
+    capabilities = capabilities,
+    on_attach = on_attach,
+    settings = {
+        lint = {
+            args = { "--unfixable", "F401,F841" },
+        },
+    },
+})
 
 -- Lua
 nvim_lsp.lua_ls.setup({

Brewfile

@@ -123,6 +123,8 @@ brew "rich-cli"
 brew "ripgrep"
 # Extremely fast Python linter, written in Rust
 brew "ruff"
+# Language Server Protocol implementation for Ruff
+brew "ruff-lsp"
 # Fast and accurate code counter with complexity and COCOMO estimates
 brew "scc"
 # Intuitive find & replace CLI