nvim-lint: deadnix

config/nvim/nifoc/formatting.fnl

@@ -5,7 +5,7 @@
   (fn mod.setup []
     (let [augroup (vim.api.nvim_create_augroup :NifocFormatting {:clear true})
           aucmd vim.api.nvim_create_autocmd]
-      (aucmd :BufWritePre {:callback #(mod.maybe-format-buffer) :group augroup})))
+      (aucmd :BufWritePre {:callback mod.maybe-format-buffer :group augroup})))
 
   (fn mod.maybe-enable-lsp [client bufnr]
     (when client.server_capabilities.documentRangeFormattingProvider

config/nvim/plugins/nvim-lint.fnl

@@ -1,16 +1,34 @@
 (let [lint (require :lint)
       augroup (vim.api.nvim_create_augroup :NifocLint {:clear true})
       aucmd vim.api.nvim_create_autocmd]
+  (set lint.linters.deadnix
+       {:cmd :deadnix
+        :stdin false
+        :args [:--output-format :json]
+        :stream :stdout
+        :ignore_exitcode false
+        :parser (fn [output]
+                  (if (= output "") {}
+                      (let [findings (vim.json.decode output)]
+                        (vim.tbl_map (fn [result]
+                                       {:lnum (- result.line 1)
+                                        :end_lnum (- result.line 1)
+                                        :col (- result.column 1)
+                                        :end_col (- result.endColumn 1)
+                                        :severity vim.diagnostic.severity.HINT
+                                        :source :deadnix
+                                        :message result.message})
+                                     findings.results))))})
   (set lint.linters_by_ft {:dockerfile [:hadolint]
                            :elixir [:credo]
                            :fennel [:fennel]
-                           :nix [:nix :statix]
+                           :nix [:deadnix :nix :statix]
                            :sh [:shellcheck]})
 
   (fn setup-linting [opts]
-    (aucmd [:BufWritePost :BufWinEnter :InsertLeave]
+    (aucmd [:BufWritePost :BufEnter :InsertLeave]
            {:callback #(lint.try_lint) :buffer opts.buf :group augroup}))
 
   (each [ft _ (pairs lint.linters_by_ft)]
-    (aucmd :InsertEnter {:pattern ft :callback setup-linting :group augroup})))
+    (aucmd :FileType {:pattern ft :callback setup-linting :group augroup})))
 

programs/nvim/default.nix

@@ -49,6 +49,7 @@ in
       # LSP Tools
       deadnix
       hadolint
+      fennel
       fnlfmt
       shellcheck
       shfmt