[Add] Load command scripts from filesystem.

.gitignore

@@ -1,5 +1,5 @@
 # Build output.
-bin/
+/bin/
 build/
 
 # Editor/IDE, whatever people use.

assets/scripts/bin/ls.lua

@@ -0,0 +1,14 @@
+-- /bin/ls - Lists files in a directory.
+local dir = current_dir -- Get directory object from C++.
+local output = ""
+
+-- Iterate over the 'children' map exposed via C++.
+for name, node in pairs(dir.children) do
+  output = output .. name
+  if node.type == 1 then -- 1 is DIR_NODE enum from C++.
+    output = output .. "/"
+  end
+  output = output .. " "
+end
+
+return output

assets/scripts/bin/rm.lua

@@ -0,0 +1,3 @@
+local file_to_remove = arg[1]
+if not file_to_remove then return "rm: missing operand" end
+return { action = "rm", target = file_to_remove }

common/src/vfs_manager.cpp

@@ -1,3 +1,7 @@
+#include <filesystem>
+#include <fstream>
+#include <sstream>
+
 #include "vfs_manager.h"
 #include "vfs.h"
 
@@ -38,35 +42,20 @@ VFSManager::VFSManager(void) {
   _vfs_root->read_only  = true;
   bin->read_only        = true;
 
-  /* TODO:
-   * Load all scripts from assets/scripts/bin into the bind node.
-   * We'll create ls.lua manually for now.
-   */
-  vfs_node* ls_script = new_node("ls.lua", FILE_NODE, bin);
-  ls_script->content = R"lua(-- /bin/ls.lua - Lists files in a directory.
-                             local dir = current_dir -- Get directory object from C++.
-                             local output = ""
-
-                             -- Iterate over the 'children' map exposed from c++.
-                             for name, node in pairs(dir.children) do
-                               output = output .. name
-                               if node.type == 1 then
-                                 output = output .. "/"
-                               end
-                               output = output .. " "
-                             end
-                             return output
-                             )lua";
-
-  bin->children["ls.lua"] = ls_script;
-
-  vfs_node* rm_script = new_node("rm.lua", FILE_NODE, bin);
-  rm_script->content = R"lua(-- /bin/rm.lua - Removes a file.
-                             local file_to_remove = arg[1]
-                             if not file_to_remove then return "rm: missing operand" end
-                             return { action = "rm", target = file_to_remove }
-                             )lua";
-  bin->children["rm.lua"] = rm_script;
+  /* Load all scripts from assets/scripts/bin into the VFS. */
+  const std::string path = "assets/scripts/bin";
+  for(const auto & entry : std::filesystem::directory_iterator(path)) {
+    if(entry.is_regular_file() && entry.path().extension() == ".lua") {
+      std::ifstream t(entry.path());
+      std::stringstream buffer;
+      buffer << t.rdbuf();
+      std::string filename = entry.path().filename().string();
+      vfs_node* script_node = new_node(filename, FILE_NODE, bin);
+      script_node->content = buffer.str();
+      bin->children[filename] = script_node;
+      fprintf(stderr, "Loaded script: /bin/%s\n", filename.c_str());
+    }
+  }
 }
 
 VFSManager::~VFSManager(void) {