added run command

init.lua

@@ -264,47 +264,75 @@ local function packer_startup(use)
 
 end
 
-do
-    local function file_exists(name)
-        local f = io.open(name,"r")
+---@param name string
+---@return boolean
+local function file_exists(name)
+    local f = io.open(name,"r")
 
-        if f~=nil then
-            f:close()
-            return true
-        else
-            return false
-        end
+    if f~=nil then
+        f:close()
+        return true
+    else
+        return false
     end
-
-    -- Opens a default .snippets file for the filetype you are currently editing in a horizontal split pane.
-    -- If the .snippets file does not exist, it will be created.
-    -- This requires the snippets folder to exist in the config folder.
-    -- If the folder does not exist, the command will print out a helpful error message showing what the path
-    -- should look like.
-    vim.api.nvim_create_user_command(
-        'S',
-        function ()
-            ---@type string
-            local snippets_path = vim.fn.stdpath('config') .. '/snippets/' ..
-                                vim.api.nvim_buf_get_option(0, "filetype") .. '.snippets'
-
-            if not file_exists(snippets_path) then
-                local file = io.open( snippets_path, 'w' )
-                    assert(
-                        file ~= nil,
-                        ("io.open('%s', 'w') returned nil.\n"):format(snippets_path) ..
-                        "Make sure the snippets folder in the above path exists."
-                    )
-                file:close()
-                print('created file: ', snippets_path)
-            end
-
-            vim.api.nvim_command(('SnippyEdit %s'):format(snippets_path))
-        end,
-        { nargs = 0 }
-    )
 end
 
+-- Opens a default .snippets file for the filetype you are currently editing in a horizontal split pane.
+-- If the .snippets file does not exist, it will be created.
+-- This requires the snippets folder to exist in the config folder.
+-- If the folder does not exist, the command will print out a helpful error message showing what the path
+-- should look like.
+vim.api.nvim_create_user_command(
+    'S',
+    function ()
+        ---@type string
+        local snippets_path = vim.fn.stdpath('config') .. '/snippets/' ..
+                              vim.api.nvim_buf_get_option(0, "filetype") .. '.snippets'
+
+        if not file_exists(snippets_path) then
+            local file = io.open( snippets_path, 'w' )
+                assert(
+                    file ~= nil,
+                    ("io.open('%s', 'w') returned nil.\n"):format(snippets_path) ..
+                    "Make sure the snippets folder in the above path exists."
+                )
+            file:close()
+            print('created file: ', snippets_path)
+        end
+
+        vim.api.nvim_command(('SnippyEdit %s'):format(snippets_path))
+    end,
+    { nargs = 0 }
+)
+
+---@type function
+local run_file
+do
+    local run_script_name = "run.sh"
+
+    run_file = function()
+        ---@type "Linux" | "Darwin" | "Windows_NT"
+        local os_name = vim.loop.os_uname().sysname
+        if os_name ~= "Linux" then
+            error('run_file not implemented for non-linux platforms')
+        end
+
+        local run_script_path = vim.fn.getcwd() .. "/" .. run_script_name
+        if not file_exists(run_script_path) then
+            error( "The run script: '" .. run_script_path .. "' does not exist")
+        end
+
+        vim.cmd('!sh ' .. run_script_path)
+    end
+end
+
+vim.keymap.set(
+    'n',
+    keymap.test_execute_file,
+    run_file,
+    { silent = true }
+)
+
 ---Splits the line under the cursor into multiple lines.
 ---Works on lines with properly opening and closing brackets: (),[],{}
 ---Starts at the cursor position and moves to the right until it finds an opening bracket.