fix(ftplugin/c): Setup debugger only if the executable exists

Removed redundant `load_launchjs` as the plugin loads it automatically

nvim/ftplugin/c.lua

@@ -28,23 +28,28 @@ local conf = require("telescope.config").values
 local actions = require("telescope.actions")
 local action_state = require("telescope.actions.state")
 
-if require('user.file_exists').file_exists(vim.fs.dirname(vim.fs.find(root_files, { upward = true })[1]) .. "/.vscode/launch.json") then
+if vim.fn.executable('gdb') == 1 then
-  require("dap.ext.vscode").load_launchjs(nil, { cppdbg = { "c", "cpp", "asm" } })
+  dap.adapters.gdb = {
-end
-
-dap.adapters.gdb = {
     type = "executable",
     command = "gdb",
     args = { "-i", "dap" }
-}
+  }
+end
 
-dap.adapters.cppdbg = {
+-- DAP loads this automatically as of now. May be needed to load the debugger for asm?
+-- if require('user.file_exists').file_exists(vim.fs.dirname(vim.fs.find(root_files, { upward = true })[1]) .. "/.vscode/launch.json") then
+--   require("dap.ext.vscode").load_launchjs(nil, { cppdbg = { "c", "cpp", "asm" } })
+--   require("dap.ext.vscode").load_launchjs(nil, { gdb = { "c", "cpp", "asm" } })
+-- end
+
+if vim.fn.executable('OpenDebugAD7') == 1 then
+  dap.adapters.cppdbg = {
     id = 'cppdbg',
     type = 'executable',
     command = 'OpenDebugAD7',
-}
+  }
 
-dap.configurations.c = {
+  dap.configurations.c = {
     {
       name = "Launch an executable",
       type = "cppdbg",
@@ -71,4 +76,5 @@ dap.configurations.c = {
       end,
       stopAtBeginningOfMainSubprogram = true,
     },
-}
+  }
+end