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[Add] Implemented Lua command execution engine.

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Replacing hardcoded c++ 'ls' command with a generic system that finds and
runs Lua scripts from the virual file system.
This commit is contained in:
Ritchie Cunningham 2025-09-21 20:42:25 +01:00
parent fbf70c43b3
commit 62d5f0526f
1 changed files with 17 additions and 21 deletions
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38
common/src/command_processor.cpp
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@ -21,6 +21,23 @@ std::string CommandProcessor::process_command(const std::string& command) {
size_t end = cmd.find_last_not_of(" \t\n\r");
cmd = (end == std::string::npos) ? "" : cmd.substr(0, end+1);
/* === Generic script executer. === */
std::string command_name = cmd.substr(0, cmd.find(" "));
/* Search for script in the /bin directory. */
std::string script_filename = command_name + ".lua";
vfs_node* root = _current_dir;
while(root->parent != nullptr) {
root = root->parent;
}
if(root->children.count("bin") && root->children["bin"]->children.count(script_filename)) {
vfs_node* script_node = root->children["bin"]->children[script_filename];
/* TODO: Pass arguments to the Lua script. */
return _lua->execute(script_node->content, _current_dir);
}
/* === Tmp fallback for built-in C++ commands. */
if(command.rfind("cd ", 0) == 0) {
std::string target_dir_name = command.substr(3);
if(target_dir_name == "..") {
@ -38,27 +55,6 @@ std::string CommandProcessor::process_command(const std::string& command) {
return "cd: no such file or directory\n";
}
return get_full_path(_current_dir);
} else if(cmd == "ls") {
/* Find the root of the VFS to look for the /bin directory. */
vfs_node* root = _current_dir;
while(root->parent != nullptr) {
root = root->parent;
}
fprintf(stderr, "DEBUG: VFS root found, name: '%s'\n", root->name.c_str());
/* Find and execute the ls.lua script. */
if(root->children.count("bin")) {
fprintf(stderr, "DEBUG: Found '/bin' directory.\n");
vfs_node* bin_dir = root->children["bin"];
if(bin_dir->children.count("ls.lua")) {
fprintf(stderr, "DEBUG: Found '/bin/ls.lua'. Executing.\n");
vfs_node* ls_script_node = bin_dir->children["ls.lua"];
return _lua->execute(ls_script_node->content, _current_dir);
}
}
fprintf(stderr, "DEBUG: 'ls' command failed to find '/bin/ls.lua'.\n");
return "ls: command not found\n";
}
return "Unknown command: " + command + "\n";