Done

lua/custom/plugins/code_runner.lua

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+-- Code Runner configuration
+-- https://github.com/CRAG666/code_runner.nvim
+
+return {
+  "CRAG666/code_runner.nvim",
+  dependencies = {
+    "nvim-lua/plenary.nvim",
+  },
+  -- Lazy load on commands
+  cmd = {
+    "RunCode", "RunFile", "RunProject", 
+    "RunClose", "CRFiletype", "CRProjects"
+  },
+  config = function()
+    require("code_runner").setup({
+      -- Choose default mode (valid term, tab, float, toggle, buf)
+      mode = "float",
+      
+      -- Focus on runner window
+      focus = true,
+      
+      -- Start runner when run key is pressed
+      startinsert = true,
+      
+      -- Close terminal window after process exit
+      term = {
+        position = "bot",
+        size = 12,
+      },
+      
+      float = {
+        -- Window border and appearance
+        border = "rounded",
+        height = 0.7,
+        width = 0.7,
+        x = 0.5,
+        y = 0.5,
+        border_hl = "FloatBorder",
+        float_hl = "Normal",
+        close_on_exit = true,
+      },
+      
+      -- Language-specific commands (optimized order)
+      filetype = {
+        python = "python3 -u $fileName",
+        javascript = "node $fileName",
+        typescript = "ts-node $fileName",
+        rust = "cargo run",
+        go = "go run $fileName",
+        cpp = "g++ $fileName -o $fileNameWithoutExt && ./$fileNameWithoutExt",
+        c = "gcc $fileName -o $fileNameWithoutExt && ./$fileNameWithoutExt",
+        java = "cd $dir && javac $fileName && java $fileNameWithoutExt",
+        sh = "bash $fileName",
+        lua = "lua $fileName",
+        php = "php $fileName",
+        ruby = "ruby $fileName",
+        perl = "perl $fileName",
+        r = "Rscript $fileName",
+        dart = "dart $fileName",
+        julia = "julia $fileName",
+        kotlin = "kotlinc $fileName -include-runtime -d $fileNameWithoutExt.jar && java -jar $fileNameWithoutExt.jar",
+        swift = "swift $fileName",
+        haskell = "runhaskell $fileName",
+        lisp = "clisp $fileName",
+        elixir = "elixir $fileName",
+        matlab = "matlab -nodisplay -nosplash -nodesktop -r \"run('$fileName');exit;\"",
+      },
+      
+      -- Project-specific configuration (optimized)
+      project = {
+        name = ".projectile",
+        
+        -- Patterns to identify project type (ordered by frequency)
+        patterns = {
+          ["package.json"] = { command = "npm start", name = "npm project" },
+          ["Cargo.toml"] = { command = "cargo run", name = "cargo project" },
+          ["go.mod"] = { command = "go run .", name = "go project" },
+          ["Makefile"] = { command = "make", name = "make project" },
+          ["pom.xml"] = { command = "mvn compile exec:java", name = "maven project" },
+        },
+      },
+    })
+  end,
+  -- Define keymaps directly in the keys table for better compatibility
+  keys = {
+    { "<leader>r", ":RunCode<CR>", desc = "Run code" },
+    { "<leader>rf", ":RunFile<CR>", desc = "Run current file" },
+    { "<leader>rp", ":RunProject<CR>", desc = "Run project" },
+    { "<leader>rc", ":RunClose<CR>", desc = "Close runner" },
+    { "<leader>crf", ":CRFiletype<CR>", desc = "Run custom command for filetype" },
+    { "<leader>crp", ":CRProjects<CR>", desc = "Run custom command for project" },
+  }
+}