| 1 | use std::env; |
| 2 | use std::path::PathBuf; |
| 3 | use std::process::{Command, ExitStatus}; |
| 4 | use thiserror::Error; |
| 5 | use rush_interactive::ErrorHints; |
| 6 | |
| 7 | #[cfg(unix)] |
| 8 | use std::os::unix::process::ExitStatusExt; |
| 9 | |
| 10 | #[derive(Error, Debug)] |
| 11 | pub enum ExecutionError { |
| 12 | #[error("{0}")] |
| 13 | CommandNotFound(String), |
| 14 | |
| 15 | #[error("I/O error: {0}")] |
| 16 | IoError(#[from] std::io::Error), |
| 17 | |
| 18 | #[error("Empty command")] |
| 19 | EmptyCommand, |
| 20 | } |
| 21 | |
| 22 | pub struct ExecutionResult { |
| 23 | pub exit_status: ExitStatus, |
| 24 | /// Job control information (Unix only) |
| 25 | #[cfg(unix)] |
| 26 | pub job_control: Option<JobControlInfo>, |
| 27 | } |
| 28 | |
| 29 | #[cfg(unix)] |
| 30 | #[derive(Debug, Clone)] |
| 31 | pub struct JobControlInfo { |
| 32 | /// Process ID |
| 33 | pub pid: nix::unistd::Pid, |
| 34 | /// Process group ID |
| 35 | pub pgid: nix::unistd::Pid, |
| 36 | /// Whether the job was stopped (Ctrl-Z) |
| 37 | pub stopped: bool, |
| 38 | } |
| 39 | |
| 40 | impl ExecutionResult { |
| 41 | pub fn success_code() -> i32 { |
| 42 | 0 |
| 43 | } |
| 44 | |
| 45 | pub fn exit_code(&self) -> i32 { |
| 46 | self.exit_status.code().unwrap_or(1) |
| 47 | } |
| 48 | |
| 49 | pub fn success(&self) -> bool { |
| 50 | self.exit_status.success() |
| 51 | } |
| 52 | |
| 53 | #[cfg(unix)] |
| 54 | pub fn is_stopped(&self) -> bool { |
| 55 | self.job_control.as_ref().map_or(false, |jc| jc.stopped) |
| 56 | } |
| 57 | |
| 58 | #[cfg(not(unix))] |
| 59 | pub fn is_stopped(&self) -> bool { |
| 60 | false |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | /// Execute a simple command (external program) |
| 65 | /// |
| 66 | /// In interactive mode, this sets up proper process groups and terminal control. |
| 67 | /// In non-interactive mode, it runs the command normally. |
| 68 | pub fn execute_command( |
| 69 | command: &str, |
| 70 | args: &[String], |
| 71 | interactive: bool, |
| 72 | context: &mut rush_expand::Context, |
| 73 | ) -> Result<ExecutionResult, ExecutionError> { |
| 74 | if command.is_empty() { |
| 75 | return Err(ExecutionError::EmptyCommand); |
| 76 | } |
| 77 | |
| 78 | // Expand aliases (only for the command name, not args) |
| 79 | let (actual_command, actual_args): (String, Vec<String>) = if let Some(alias_value) = context.aliases.get(command).cloned() { |
| 80 | // Parse the alias value to get command and its args |
| 81 | let parts: Vec<String> = alias_value.split_whitespace().map(|s| s.to_string()).collect(); |
| 82 | if parts.is_empty() { |
| 83 | (command.to_string(), args.to_vec()) |
| 84 | } else { |
| 85 | let cmd = parts[0].clone(); |
| 86 | let mut new_args: Vec<String> = parts[1..].to_vec(); |
| 87 | new_args.extend_from_slice(args); |
| 88 | (cmd, new_args) |
| 89 | } |
| 90 | } else { |
| 91 | (command.to_string(), args.to_vec()) |
| 92 | }; |
| 93 | |
| 94 | // Check if it's a built-in command |
| 95 | if let Some(result) = execute_builtin(&actual_command, &actual_args, context) { |
| 96 | return Ok(result); |
| 97 | } |
| 98 | |
| 99 | // Try to find the command in PATH |
| 100 | let program_path = find_in_path(&actual_command) |
| 101 | .ok_or_else(|| ExecutionError::CommandNotFound(ErrorHints::command_not_found(&actual_command)))?; |
| 102 | |
| 103 | // Build the command |
| 104 | let mut cmd = Command::new(program_path); |
| 105 | cmd.args(&actual_args); |
| 106 | |
| 107 | // Execute with proper terminal handling |
| 108 | #[cfg(unix)] |
| 109 | { |
| 110 | crate::terminal::unix::execute_with_terminal_control(cmd, interactive) |
| 111 | } |
| 112 | |
| 113 | #[cfg(not(unix))] |
| 114 | { |
| 115 | crate::terminal::non_unix::execute_with_terminal_control(cmd, interactive) |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | /// Execute built-in commands |
| 120 | pub(crate) fn execute_builtin( |
| 121 | command: &str, |
| 122 | args: &[String], |
| 123 | context: &mut rush_expand::Context, |
| 124 | ) -> Option<ExecutionResult> { |
| 125 | match command { |
| 126 | "exit" => { |
| 127 | let code = args.first() |
| 128 | .and_then(|s| s.parse::<i32>().ok()) |
| 129 | .unwrap_or(context.last_exit_status); |
| 130 | context.exit_requested = Some(code); |
| 131 | Some(exit_code_to_result(code)) |
| 132 | } |
| 133 | "true" => Some(success_result()), |
| 134 | "false" => Some(error_result()), |
| 135 | ":" => Some(success_result()), |
| 136 | "cd" => Some(builtin_cd(args, context)), |
| 137 | "pwd" => { |
| 138 | match env::current_dir() { |
| 139 | Ok(path) => { |
| 140 | println!("{}", path.display()); |
| 141 | Some(success_result()) |
| 142 | } |
| 143 | Err(_) => Some(error_result()), |
| 144 | } |
| 145 | } |
| 146 | "test" | "[" => { |
| 147 | let exit_code = crate::test_builtin::execute_test(args); |
| 148 | Some(exit_code_to_result(exit_code)) |
| 149 | } |
| 150 | "source" | "." => { |
| 151 | match builtin_source(args, context) { |
| 152 | Ok(result) => Some(result), |
| 153 | Err(err) => { |
| 154 | eprintln!("{}: {}", command, err); |
| 155 | Some(error_result()) |
| 156 | } |
| 157 | } |
| 158 | } |
| 159 | "eval" => { |
| 160 | match builtin_eval(args, context) { |
| 161 | Ok(result) => Some(result), |
| 162 | Err(err) => { |
| 163 | eprintln!("eval: {}", err); |
| 164 | Some(error_result()) |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | "alias" => Some(builtin_alias(args, context)), |
| 169 | "unalias" => Some(builtin_unalias(args, context)), |
| 170 | "trap" => Some(builtin_trap(args, context)), |
| 171 | "set" => Some(builtin_set(args, context)), |
| 172 | "shopt" => Some(builtin_shopt(args, context)), |
| 173 | "export" => Some(builtin_export(args, context)), |
| 174 | "unset" => Some(builtin_unset(args, context)), |
| 175 | "readonly" => Some(builtin_readonly(args, context)), |
| 176 | "declare" | "typeset" => Some(builtin_declare(args, context)), |
| 177 | "local" => Some(builtin_local(args, context)), |
| 178 | "read" => Some(builtin_read(args, context)), |
| 179 | "shift" => Some(builtin_shift(args, context)), |
| 180 | "wait" => Some(builtin_wait(args, context)), |
| 181 | "kill" => Some(builtin_kill(args, context)), |
| 182 | "times" => Some(builtin_times(args, context)), |
| 183 | "umask" => Some(builtin_umask(args, context)), |
| 184 | "hash" => Some(builtin_hash(args, context)), |
| 185 | "getopts" => Some(builtin_getopts(args, context)), |
| 186 | "exec" => { |
| 187 | match builtin_exec(args, context) { |
| 188 | Ok(result) => Some(result), |
| 189 | Err(err) => { |
| 190 | eprintln!("exec: {}", err); |
| 191 | Some(error_result()) |
| 192 | } |
| 193 | } |
| 194 | } |
| 195 | "command" => { |
| 196 | match builtin_command(args, context) { |
| 197 | Ok(result) => Some(result), |
| 198 | Err(err) => { |
| 199 | eprintln!("command: {}", err); |
| 200 | Some(error_result()) |
| 201 | } |
| 202 | } |
| 203 | } |
| 204 | #[cfg(unix)] |
| 205 | "jobs" => Some(builtin_jobs(context)), |
| 206 | #[cfg(unix)] |
| 207 | "fg" => Some(builtin_fg(args, context)), |
| 208 | #[cfg(unix)] |
| 209 | "bg" => Some(builtin_bg(args, context)), |
| 210 | #[cfg(unix)] |
| 211 | "coproc" => Some(builtin_coproc(args, context)), |
| 212 | #[cfg(unix)] |
| 213 | "disown" => Some(builtin_disown(args, context)), |
| 214 | #[cfg(not(unix))] |
| 215 | "jobs" | "fg" | "bg" | "coproc" | "disown" => { |
| 216 | eprintln!("{}: job control not supported on this platform", command); |
| 217 | Some(error_result()) |
| 218 | } |
| 219 | "echo" => Some(builtin_echo(args)), |
| 220 | "printf" => Some(builtin_printf(args, context)), |
| 221 | "mapfile" | "readarray" => Some(builtin_mapfile(args, context)), |
| 222 | "complete" => Some(builtin_complete(args, context)), |
| 223 | "pushd" => Some(builtin_pushd(args, context)), |
| 224 | "popd" => Some(builtin_popd(args, context)), |
| 225 | "dirs" => Some(builtin_dirs(args, context)), |
| 226 | _ => None, |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | pub(crate) fn exit_code_to_result(code: i32) -> ExecutionResult { |
| 231 | #[cfg(unix)] |
| 232 | { |
| 233 | ExecutionResult { |
| 234 | exit_status: std::process::ExitStatus::from_raw(code << 8), |
| 235 | job_control: None, |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | #[cfg(not(unix))] |
| 240 | { |
| 241 | // On non-Unix, we can't easily create an ExitStatus with a specific code |
| 242 | if code == 0 { |
| 243 | success_result() |
| 244 | } else { |
| 245 | error_result() |
| 246 | } |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | /// alias builtin - Manage command aliases |
| 251 | fn builtin_alias(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 252 | // No arguments: list all aliases |
| 253 | if args.is_empty() { |
| 254 | let mut aliases: Vec<_> = context.aliases.iter().collect(); |
| 255 | aliases.sort_by_key(|(name, _)| *name); |
| 256 | for (name, value) in aliases { |
| 257 | println!("alias {}='{}'", name, value); |
| 258 | } |
| 259 | return success_result(); |
| 260 | } |
| 261 | |
| 262 | // Process each argument |
| 263 | for arg in args { |
| 264 | if let Some(eq_pos) = arg.find('=') { |
| 265 | // Define alias: name=value |
| 266 | let name = &arg[..eq_pos]; |
| 267 | let value = &arg[eq_pos + 1..]; |
| 268 | context.aliases.insert(name.to_string(), value.to_string()); |
| 269 | } else { |
| 270 | // Display specific alias |
| 271 | match context.aliases.get(arg) { |
| 272 | Some(value) => println!("alias {}='{}'", arg, value), |
| 273 | None => { |
| 274 | eprintln!("alias: {}: not found", arg); |
| 275 | return error_result(); |
| 276 | } |
| 277 | } |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | success_result() |
| 282 | } |
| 283 | |
| 284 | /// unalias builtin - Remove command aliases |
| 285 | fn builtin_unalias(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 286 | if args.is_empty() { |
| 287 | eprintln!("unalias: usage: unalias [-a] name [name ...]"); |
| 288 | return error_result(); |
| 289 | } |
| 290 | |
| 291 | // Check for -a flag (remove all aliases) |
| 292 | if args[0] == "-a" { |
| 293 | context.aliases.clear(); |
| 294 | return success_result(); |
| 295 | } |
| 296 | |
| 297 | // Remove specified aliases |
| 298 | let mut had_error = false; |
| 299 | for name in args { |
| 300 | if context.aliases.remove(name).is_none() { |
| 301 | eprintln!("unalias: {}: not found", name); |
| 302 | had_error = true; |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | if had_error { |
| 307 | error_result() |
| 308 | } else { |
| 309 | success_result() |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | /// Normalize signal name (SIGINT, INT, 2 all -> INT) |
| 314 | fn normalize_signal_name(sig: &str) -> Option<String> { |
| 315 | // Special trap signals |
| 316 | match sig.to_uppercase().as_str() { |
| 317 | "EXIT" | "0" => return Some("EXIT".to_string()), |
| 318 | "ERR" => return Some("ERR".to_string()), |
| 319 | "DEBUG" => return Some("DEBUG".to_string()), |
| 320 | "RETURN" => return Some("RETURN".to_string()), |
| 321 | _ => {} |
| 322 | } |
| 323 | |
| 324 | // Regular signals - strip SIG prefix if present |
| 325 | let name = sig.to_uppercase(); |
| 326 | let name = name.strip_prefix("SIG").unwrap_or(&name); |
| 327 | |
| 328 | // Map common signal names/numbers |
| 329 | match name { |
| 330 | "HUP" | "1" => Some("HUP".to_string()), |
| 331 | "INT" | "2" => Some("INT".to_string()), |
| 332 | "QUIT" | "3" => Some("QUIT".to_string()), |
| 333 | "ABRT" | "6" => Some("ABRT".to_string()), |
| 334 | "KILL" | "9" => Some("KILL".to_string()), |
| 335 | "ALRM" | "14" => Some("ALRM".to_string()), |
| 336 | "TERM" | "15" => Some("TERM".to_string()), |
| 337 | "USR1" | "10" => Some("USR1".to_string()), |
| 338 | "USR2" | "12" => Some("USR2".to_string()), |
| 339 | "CHLD" | "CHILD" | "17" => Some("CHLD".to_string()), |
| 340 | "CONT" | "18" => Some("CONT".to_string()), |
| 341 | "STOP" | "19" => Some("STOP".to_string()), |
| 342 | "TSTP" | "20" => Some("TSTP".to_string()), |
| 343 | "TTIN" | "21" => Some("TTIN".to_string()), |
| 344 | "TTOU" | "22" => Some("TTOU".to_string()), |
| 345 | _ => None, |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | /// trap builtin - Set or display signal handlers |
| 350 | fn builtin_trap(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 351 | // No arguments: list all traps |
| 352 | if args.is_empty() { |
| 353 | let mut traps: Vec<_> = context.traps.iter().collect(); |
| 354 | traps.sort_by_key(|(sig, _)| *sig); |
| 355 | for (signal, command) in traps { |
| 356 | if command.is_empty() { |
| 357 | println!("trap -- '' {}", signal); |
| 358 | } else { |
| 359 | println!("trap -- '{}' {}", command, signal); |
| 360 | } |
| 361 | } |
| 362 | return success_result(); |
| 363 | } |
| 364 | |
| 365 | // Handle -p flag (print traps) |
| 366 | if args[0] == "-p" { |
| 367 | if args.len() == 1 { |
| 368 | // Print all traps |
| 369 | let mut traps: Vec<_> = context.traps.iter().collect(); |
| 370 | traps.sort_by_key(|(sig, _)| *sig); |
| 371 | for (signal, command) in traps { |
| 372 | if command.is_empty() { |
| 373 | println!("trap -- '' {}", signal); |
| 374 | } else { |
| 375 | println!("trap -- '{}' {}", command, signal); |
| 376 | } |
| 377 | } |
| 378 | } else { |
| 379 | // Print specific traps |
| 380 | for sig in &args[1..] { |
| 381 | if let Some(normalized) = normalize_signal_name(sig) { |
| 382 | if let Some(command) = context.traps.get(&normalized) { |
| 383 | if command.is_empty() { |
| 384 | println!("trap -- '' {}", normalized); |
| 385 | } else { |
| 386 | println!("trap -- '{}' {}", command, normalized); |
| 387 | } |
| 388 | } |
| 389 | } |
| 390 | } |
| 391 | } |
| 392 | return success_result(); |
| 393 | } |
| 394 | |
| 395 | // Handle -l flag (list signal names) |
| 396 | if args[0] == "-l" { |
| 397 | println!(" 1) HUP\t 2) INT\t 3) QUIT\t 6) ABRT\t 9) KILL"); |
| 398 | println!("10) USR1\t12) USR2\t14) ALRM\t15) TERM\t17) CHLD"); |
| 399 | println!("18) CONT\t19) STOP\t20) TSTP\t21) TTIN\t22) TTOU"); |
| 400 | return success_result(); |
| 401 | } |
| 402 | |
| 403 | // trap COMMAND SIGNAL... |
| 404 | let command = &args[0]; |
| 405 | let signals = &args[1..]; |
| 406 | |
| 407 | if signals.is_empty() { |
| 408 | eprintln!("trap: usage: trap [-lp] [[arg] signal_spec ...]"); |
| 409 | return error_result(); |
| 410 | } |
| 411 | |
| 412 | // Check if we're clearing traps (trap - SIGNAL) |
| 413 | let clearing = command == "-"; |
| 414 | |
| 415 | let mut had_error = false; |
| 416 | for sig in signals { |
| 417 | if let Some(normalized) = normalize_signal_name(sig) { |
| 418 | if clearing { |
| 419 | context.traps.remove(&normalized); |
| 420 | } else { |
| 421 | context.traps.insert(normalized, command.clone()); |
| 422 | } |
| 423 | } else { |
| 424 | eprintln!("trap: {}: invalid signal specification", sig); |
| 425 | had_error = true; |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | if had_error { |
| 430 | error_result() |
| 431 | } else { |
| 432 | success_result() |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | /// set builtin - Set or display shell options and positional parameters |
| 437 | fn builtin_set(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 438 | // No arguments: display all variables |
| 439 | if args.is_empty() { |
| 440 | let mut vars: Vec<_> = context.all_vars().iter().collect(); |
| 441 | vars.sort_by_key(|(name, _)| *name); |
| 442 | for (name, value) in vars { |
| 443 | println!("{}={}", name, value); |
| 444 | } |
| 445 | return success_result(); |
| 446 | } |
| 447 | |
| 448 | // Process options |
| 449 | let mut i = 0; |
| 450 | while i < args.len() { |
| 451 | let arg = &args[i]; |
| 452 | |
| 453 | if arg == "--" { |
| 454 | // End of options marker - remaining args become positional parameters |
| 455 | context.positional_params = args[i + 1..].to_vec(); |
| 456 | return success_result(); |
| 457 | } else if arg == "-" { |
| 458 | // Single dash: unset positional parameters and turn off -x and -v |
| 459 | context.positional_params.clear(); |
| 460 | context.options.xtrace = false; |
| 461 | return success_result(); |
| 462 | } else if arg.starts_with('-') || arg.starts_with('+') { |
| 463 | let enable = arg.starts_with('-'); |
| 464 | let opts = &arg[1..]; |
| 465 | |
| 466 | for ch in opts.chars() { |
| 467 | match ch { |
| 468 | 'e' => context.options.errexit = enable, |
| 469 | 'x' => context.options.xtrace = enable, |
| 470 | 'u' => context.options.nounset = enable, |
| 471 | 'f' => context.options.noglob = enable, |
| 472 | 'o' => { |
| 473 | // -o option_name format (next arg is the option) |
| 474 | // For simplicity, we'll handle this separately if needed |
| 475 | eprintln!("set: -o option requires an argument"); |
| 476 | return error_result(); |
| 477 | } |
| 478 | _ => { |
| 479 | eprintln!("set: -{}: invalid option", ch); |
| 480 | return error_result(); |
| 481 | } |
| 482 | } |
| 483 | } |
| 484 | } else { |
| 485 | // Non-option argument: all remaining args become positional parameters |
| 486 | context.positional_params = args[i..].to_vec(); |
| 487 | return success_result(); |
| 488 | } |
| 489 | i += 1; |
| 490 | } |
| 491 | |
| 492 | success_result() |
| 493 | } |
| 494 | |
| 495 | /// shopt builtin - Set or display bash-specific shell options |
| 496 | fn builtin_shopt(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 497 | let mut print_format = false; |
| 498 | let mut set_option = false; |
| 499 | let mut unset_option = false; |
| 500 | let mut quiet = false; |
| 501 | let mut options_to_process = Vec::new(); |
| 502 | |
| 503 | // Parse arguments |
| 504 | let mut i = 0; |
| 505 | while i < args.len() { |
| 506 | let arg = &args[i]; |
| 507 | if arg == "-p" { |
| 508 | print_format = true; |
| 509 | } else if arg == "-s" { |
| 510 | set_option = true; |
| 511 | } else if arg == "-u" { |
| 512 | unset_option = true; |
| 513 | } else if arg == "-q" { |
| 514 | quiet = true; |
| 515 | } else if arg.starts_with('-') { |
| 516 | eprintln!("shopt: {}: invalid option", arg); |
| 517 | return error_result(); |
| 518 | } else { |
| 519 | options_to_process.push(arg.clone()); |
| 520 | } |
| 521 | i += 1; |
| 522 | } |
| 523 | |
| 524 | // No arguments: list all options |
| 525 | if options_to_process.is_empty() && !print_format { |
| 526 | println!("nullglob\t{}", if context.options.nullglob { "on" } else { "off" }); |
| 527 | println!("dotglob\t\t{}", if context.options.dotglob { "on" } else { "off" }); |
| 528 | println!("extglob\t\t{}", if context.options.extglob { "on" } else { "off" }); |
| 529 | return success_result(); |
| 530 | } |
| 531 | |
| 532 | // -p: print in reusable format |
| 533 | if print_format && options_to_process.is_empty() { |
| 534 | println!("shopt -{} nullglob", if context.options.nullglob { "s" } else { "u" }); |
| 535 | println!("shopt -{} dotglob", if context.options.dotglob { "s" } else { "u" }); |
| 536 | println!("shopt -{} extglob", if context.options.extglob { "s" } else { "u" }); |
| 537 | return success_result(); |
| 538 | } |
| 539 | |
| 540 | // Process specific options |
| 541 | let mut had_error = false; |
| 542 | for opt_name in &options_to_process { |
| 543 | match opt_name.as_str() { |
| 544 | "nullglob" => { |
| 545 | if set_option { |
| 546 | context.options.nullglob = true; |
| 547 | } else if unset_option { |
| 548 | context.options.nullglob = false; |
| 549 | } else if print_format { |
| 550 | println!("shopt -{} nullglob", if context.options.nullglob { "s" } else { "u" }); |
| 551 | } else if !quiet { |
| 552 | println!("nullglob\t{}", if context.options.nullglob { "on" } else { "off" }); |
| 553 | } |
| 554 | } |
| 555 | "dotglob" => { |
| 556 | if set_option { |
| 557 | context.options.dotglob = true; |
| 558 | } else if unset_option { |
| 559 | context.options.dotglob = false; |
| 560 | } else if print_format { |
| 561 | println!("shopt -{} dotglob", if context.options.dotglob { "s" } else { "u" }); |
| 562 | } else if !quiet { |
| 563 | println!("dotglob\t\t{}", if context.options.dotglob { "on" } else { "off" }); |
| 564 | } |
| 565 | } |
| 566 | "extglob" => { |
| 567 | if set_option { |
| 568 | context.options.extglob = true; |
| 569 | } else if unset_option { |
| 570 | context.options.extglob = false; |
| 571 | } else if print_format { |
| 572 | println!("shopt -{} extglob", if context.options.extglob { "s" } else { "u" }); |
| 573 | } else if !quiet { |
| 574 | println!("extglob\t\t{}", if context.options.extglob { "on" } else { "off" }); |
| 575 | } |
| 576 | } |
| 577 | _ => { |
| 578 | if !quiet { |
| 579 | eprintln!("shopt: {}: invalid shell option name", opt_name); |
| 580 | } |
| 581 | had_error = true; |
| 582 | } |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | if had_error { |
| 587 | error_result() |
| 588 | } else { |
| 589 | success_result() |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | /// export builtin - Mark variables for export to child processes |
| 594 | fn builtin_export(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 595 | let mut print_format = false; |
| 596 | let mut unexport = false; |
| 597 | let mut vars_to_process = Vec::new(); |
| 598 | |
| 599 | // Parse arguments |
| 600 | for arg in args { |
| 601 | if arg == "-p" { |
| 602 | print_format = true; |
| 603 | } else if arg == "-n" { |
| 604 | unexport = true; |
| 605 | } else if arg.starts_with('-') { |
| 606 | eprintln!("export: {}: invalid option", arg); |
| 607 | return error_result(); |
| 608 | } else { |
| 609 | vars_to_process.push(arg.clone()); |
| 610 | } |
| 611 | } |
| 612 | |
| 613 | // No arguments or -p: list all exported variables |
| 614 | if vars_to_process.is_empty() { |
| 615 | let mut exported: Vec<_> = context.exported_vars().iter().collect(); |
| 616 | exported.sort_by_key(|(name, _)| *name); |
| 617 | for (name, value) in exported { |
| 618 | if print_format { |
| 619 | println!("export {}={}", name, value); |
| 620 | } else { |
| 621 | println!("export {}={}", name, value); |
| 622 | } |
| 623 | } |
| 624 | return success_result(); |
| 625 | } |
| 626 | |
| 627 | // Process each variable |
| 628 | for var in &vars_to_process { |
| 629 | if let Some(eq_pos) = var.find('=') { |
| 630 | // VAR=value format |
| 631 | let name = &var[..eq_pos]; |
| 632 | let value = &var[eq_pos + 1..]; |
| 633 | |
| 634 | if unexport { |
| 635 | eprintln!("export: -n: cannot assign value and unexport"); |
| 636 | return error_result(); |
| 637 | } |
| 638 | |
| 639 | context.export_var(name, value); |
| 640 | } else { |
| 641 | // Just VAR (no value) |
| 642 | if unexport { |
| 643 | // Remove from exported (but keep in variables) |
| 644 | context.unexport_var(var); |
| 645 | } else { |
| 646 | // Export existing variable |
| 647 | if let Some(value) = context.get_var(var).map(|s| s.to_string()) { |
| 648 | context.export_var(var, value); |
| 649 | } else { |
| 650 | // Variable doesn't exist, export with empty value |
| 651 | context.export_var(var, ""); |
| 652 | } |
| 653 | } |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | success_result() |
| 658 | } |
| 659 | |
| 660 | /// unset builtin - Unset variables or functions |
| 661 | fn builtin_unset(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 662 | let mut unset_vars = true; |
| 663 | let mut unset_funcs = true; |
| 664 | let mut names_to_unset = Vec::new(); |
| 665 | |
| 666 | // Parse arguments |
| 667 | for arg in args { |
| 668 | if arg == "-v" { |
| 669 | unset_vars = true; |
| 670 | unset_funcs = false; |
| 671 | } else if arg == "-f" { |
| 672 | unset_vars = false; |
| 673 | unset_funcs = true; |
| 674 | } else if arg.starts_with('-') { |
| 675 | eprintln!("unset: {}: invalid option", arg); |
| 676 | return error_result(); |
| 677 | } else { |
| 678 | names_to_unset.push(arg.clone()); |
| 679 | } |
| 680 | } |
| 681 | |
| 682 | if names_to_unset.is_empty() { |
| 683 | // No error, just do nothing (POSIX behavior) |
| 684 | return success_result(); |
| 685 | } |
| 686 | |
| 687 | // Unset each name |
| 688 | for name in &names_to_unset { |
| 689 | if unset_vars { |
| 690 | context.unset_var(name); |
| 691 | } |
| 692 | if unset_funcs { |
| 693 | context.functions.remove(name); |
| 694 | } |
| 695 | } |
| 696 | |
| 697 | success_result() |
| 698 | } |
| 699 | |
| 700 | /// readonly builtin - Mark variables as readonly |
| 701 | fn builtin_readonly(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 702 | let mut _print_format = false; // TODO: implement -p format output |
| 703 | let mut vars_to_process = Vec::new(); |
| 704 | |
| 705 | // Parse arguments |
| 706 | for arg in args { |
| 707 | if arg == "-p" { |
| 708 | _print_format = true; |
| 709 | } else if arg == "-f" { |
| 710 | // Readonly functions not yet supported |
| 711 | eprintln!("readonly: -f: readonly functions not yet supported"); |
| 712 | return error_result(); |
| 713 | } else if arg.starts_with('-') { |
| 714 | eprintln!("readonly: {}: invalid option", arg); |
| 715 | return error_result(); |
| 716 | } else { |
| 717 | vars_to_process.push(arg.clone()); |
| 718 | } |
| 719 | } |
| 720 | |
| 721 | // No arguments or -p: list all readonly variables |
| 722 | if vars_to_process.is_empty() { |
| 723 | let mut readonly_list: Vec<_> = context.readonly_vars().iter().collect(); |
| 724 | readonly_list.sort(); |
| 725 | for name in readonly_list { |
| 726 | if let Some(value) = context.get_var(name) { |
| 727 | println!("readonly {}={}", name, value); |
| 728 | } else { |
| 729 | println!("readonly {}", name); |
| 730 | } |
| 731 | } |
| 732 | return success_result(); |
| 733 | } |
| 734 | |
| 735 | // Process each variable |
| 736 | for var in &vars_to_process { |
| 737 | if let Some(eq_pos) = var.find('=') { |
| 738 | // VAR=value format |
| 739 | let name = &var[..eq_pos]; |
| 740 | let value = &var[eq_pos + 1..]; |
| 741 | |
| 742 | // Check if already readonly |
| 743 | if context.is_readonly(name) { |
| 744 | eprintln!("readonly: {}: readonly variable", name); |
| 745 | return error_result(); |
| 746 | } |
| 747 | |
| 748 | // Set value and mark readonly |
| 749 | // Ignore result since we already checked readonly above |
| 750 | let _ = context.set_var(name, value); |
| 751 | context.mark_readonly(name); |
| 752 | } else { |
| 753 | // Just VAR (no value) - mark existing variable as readonly |
| 754 | if !context.is_readonly(var) { |
| 755 | // If variable doesn't exist, create it with empty value |
| 756 | if context.get_var(var).is_none() { |
| 757 | let _ = context.set_var(var, ""); |
| 758 | } |
| 759 | context.mark_readonly(var); |
| 760 | } |
| 761 | } |
| 762 | } |
| 763 | |
| 764 | success_result() |
| 765 | } |
| 766 | |
| 767 | /// declare/typeset builtin - Declare variables and arrays with attributes |
| 768 | fn builtin_declare(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 769 | let mut print_mode = false; |
| 770 | let mut indexed_array = false; |
| 771 | let mut associative_array = false; |
| 772 | let mut readonly = false; |
| 773 | let mut export = false; |
| 774 | let mut vars_to_process = Vec::new(); |
| 775 | |
| 776 | // Parse arguments |
| 777 | for arg in args { |
| 778 | if arg.starts_with('-') { |
| 779 | for ch in arg.chars().skip(1) { |
| 780 | match ch { |
| 781 | 'a' => indexed_array = true, |
| 782 | 'A' => associative_array = true, |
| 783 | 'r' => readonly = true, |
| 784 | 'x' => export = true, |
| 785 | 'p' => print_mode = true, |
| 786 | _ => { |
| 787 | eprintln!("declare: -{}: invalid option", ch); |
| 788 | return error_result(); |
| 789 | } |
| 790 | } |
| 791 | } |
| 792 | } else { |
| 793 | vars_to_process.push(arg.clone()); |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | // Check for conflicting flags |
| 798 | if indexed_array && associative_array { |
| 799 | eprintln!("declare: cannot use -a and -A together"); |
| 800 | return error_result(); |
| 801 | } |
| 802 | |
| 803 | // Print mode |
| 804 | if print_mode { |
| 805 | if vars_to_process.is_empty() { |
| 806 | // Print all variables |
| 807 | let mut all_vars: Vec<_> = context.all_vars().iter().collect(); |
| 808 | all_vars.sort_by_key(|(name, _)| *name); |
| 809 | for (name, value) in all_vars { |
| 810 | let mut attrs = String::new(); |
| 811 | if context.is_readonly(name) { |
| 812 | attrs.push_str("r"); |
| 813 | } |
| 814 | if context.is_exported(name) { |
| 815 | attrs.push_str("x"); |
| 816 | } |
| 817 | if context.is_associative_array(name) { |
| 818 | attrs.push_str("A"); |
| 819 | } else if context.arrays.contains_key(name) { |
| 820 | attrs.push_str("a"); |
| 821 | } |
| 822 | |
| 823 | if attrs.is_empty() { |
| 824 | println!("declare -- {}={}", name, value); |
| 825 | } else { |
| 826 | println!("declare -{} {}={}", attrs, name, value); |
| 827 | } |
| 828 | } |
| 829 | return success_result(); |
| 830 | } else { |
| 831 | // Print specific variables |
| 832 | for var in &vars_to_process { |
| 833 | // Check if it's an array |
| 834 | if let Some(array) = context.arrays.get(var) { |
| 835 | let mut attrs = String::new(); |
| 836 | if context.is_readonly(var) { |
| 837 | attrs.push_str("r"); |
| 838 | } |
| 839 | if context.is_exported(var) { |
| 840 | attrs.push_str("x"); |
| 841 | } |
| 842 | |
| 843 | match array { |
| 844 | rush_expand::context::ArrayType::Indexed(vec) => { |
| 845 | attrs.push_str("a"); |
| 846 | // Print array elements |
| 847 | let elements: Vec<String> = vec.iter() |
| 848 | .enumerate() |
| 849 | .map(|(i, v)| format!("[{}]=\"{}\"", i, v)) |
| 850 | .collect(); |
| 851 | if attrs.is_empty() { |
| 852 | println!("declare -- {}=({})", var, elements.join(" ")); |
| 853 | } else { |
| 854 | println!("declare -{} {}=({})", attrs, var, elements.join(" ")); |
| 855 | } |
| 856 | } |
| 857 | rush_expand::context::ArrayType::Associative(map) => { |
| 858 | attrs.push_str("A"); |
| 859 | // Print associative array elements |
| 860 | let mut elements: Vec<String> = map.iter() |
| 861 | .map(|(k, v)| format!("[{}]=\"{}\"", k, v)) |
| 862 | .collect(); |
| 863 | elements.sort(); |
| 864 | if attrs.is_empty() { |
| 865 | println!("declare -- {}=({})", var, elements.join(" ")); |
| 866 | } else { |
| 867 | println!("declare -{} {}=({})", attrs, var, elements.join(" ")); |
| 868 | } |
| 869 | } |
| 870 | } |
| 871 | } else if let Some(value) = context.get_var(var) { |
| 872 | // Regular variable |
| 873 | let mut attrs = String::new(); |
| 874 | if context.is_readonly(var) { |
| 875 | attrs.push_str("r"); |
| 876 | } |
| 877 | if context.is_exported(var) { |
| 878 | attrs.push_str("x"); |
| 879 | } |
| 880 | |
| 881 | if attrs.is_empty() { |
| 882 | println!("declare -- {}=\"{}\"", var, value); |
| 883 | } else { |
| 884 | println!("declare -{} {}=\"{}\"", attrs, var, value); |
| 885 | } |
| 886 | } |
| 887 | } |
| 888 | return success_result(); |
| 889 | } |
| 890 | } |
| 891 | |
| 892 | // Process each variable |
| 893 | for var in &vars_to_process { |
| 894 | if let Some(eq_pos) = var.find('=') { |
| 895 | // VAR=value format |
| 896 | let name = &var[..eq_pos]; |
| 897 | let value = &var[eq_pos + 1..]; |
| 898 | |
| 899 | // Check if readonly |
| 900 | if context.is_readonly(name) { |
| 901 | eprintln!("declare: {}: readonly variable", name); |
| 902 | return error_result(); |
| 903 | } |
| 904 | |
| 905 | // Handle array declarations |
| 906 | if associative_array { |
| 907 | // Create associative array |
| 908 | context.create_assoc_array(name.to_string()); |
| 909 | // TODO: Parse compound assignments like arr=([key1]=val1 [key2]=val2) |
| 910 | // For now, just create empty array |
| 911 | } else if indexed_array { |
| 912 | // Create indexed array |
| 913 | // TODO: Parse array literal assignments like arr=(one two three) |
| 914 | // For now, set as regular variable |
| 915 | let _ = context.set_var(name, value); |
| 916 | } else { |
| 917 | // Regular variable |
| 918 | let _ = context.set_var(name, value); |
| 919 | } |
| 920 | |
| 921 | // Apply attributes |
| 922 | if readonly { |
| 923 | context.mark_readonly(name); |
| 924 | } |
| 925 | if export { |
| 926 | // Clone the value to avoid borrow checker issues |
| 927 | let val = context.get_var(name).map(|s| s.to_string()); |
| 928 | if let Some(v) = val { |
| 929 | context.export_var(name, v); |
| 930 | } |
| 931 | } |
| 932 | } else { |
| 933 | // Just VAR (no value) - declare without assignment |
| 934 | |
| 935 | // Create array if -a or -A specified |
| 936 | if associative_array { |
| 937 | if !context.is_readonly(var) { |
| 938 | context.create_assoc_array(var.to_string()); |
| 939 | } else { |
| 940 | eprintln!("declare: {}: readonly variable", var); |
| 941 | return error_result(); |
| 942 | } |
| 943 | } else if indexed_array { |
| 944 | if !context.is_readonly(var) { |
| 945 | context.create_indexed_array(var.to_string()); |
| 946 | } else { |
| 947 | eprintln!("declare: {}: readonly variable", var); |
| 948 | return error_result(); |
| 949 | } |
| 950 | } else if context.get_var(var).is_none() { |
| 951 | // Create variable with empty value if it doesn't exist |
| 952 | let _ = context.set_var(var, ""); |
| 953 | } |
| 954 | |
| 955 | // Apply attributes |
| 956 | if readonly { |
| 957 | context.mark_readonly(var); |
| 958 | } |
| 959 | if export { |
| 960 | // Clone the value to avoid borrow checker issues |
| 961 | let val = context.get_var(var).map(|s| s.to_string()); |
| 962 | if let Some(v) = val { |
| 963 | context.export_var(var, v); |
| 964 | } else { |
| 965 | // Export with empty value |
| 966 | context.export_var(var, ""); |
| 967 | } |
| 968 | } |
| 969 | } |
| 970 | } |
| 971 | |
| 972 | success_result() |
| 973 | } |
| 974 | |
| 975 | /// local builtin - Create function-local variables |
| 976 | fn builtin_local(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 977 | if args.is_empty() { |
| 978 | // No arguments - success (bash behavior) |
| 979 | return success_result(); |
| 980 | } |
| 981 | |
| 982 | // Process each variable assignment |
| 983 | for arg in args { |
| 984 | if arg.starts_with('-') { |
| 985 | eprintln!("local: {}: invalid option", arg); |
| 986 | return error_result(); |
| 987 | } |
| 988 | |
| 989 | if let Some(eq_pos) = arg.find('=') { |
| 990 | // VAR=value format |
| 991 | let name = &arg[..eq_pos]; |
| 992 | let value = &arg[eq_pos + 1..]; |
| 993 | |
| 994 | // Set as local variable in current function scope |
| 995 | if let Err(var_name) = context.set_local_var(name, value) { |
| 996 | eprintln!("local: {}: readonly variable", var_name); |
| 997 | return error_result(); |
| 998 | } |
| 999 | } else { |
| 1000 | // Just VAR (no value) - create with empty value |
| 1001 | if let Err(var_name) = context.set_local_var(arg, "") { |
| 1002 | eprintln!("local: {}: readonly variable", var_name); |
| 1003 | return error_result(); |
| 1004 | } |
| 1005 | } |
| 1006 | } |
| 1007 | |
| 1008 | success_result() |
| 1009 | } |
| 1010 | |
| 1011 | /// read builtin - Read a line from stdin into variables |
| 1012 | fn builtin_read(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 1013 | use std::io::{self, BufRead, Write}; |
| 1014 | |
| 1015 | let mut raw_mode = false; |
| 1016 | let mut prompt = String::new(); |
| 1017 | let mut var_names = Vec::new(); |
| 1018 | |
| 1019 | // Parse arguments |
| 1020 | let mut i = 0; |
| 1021 | while i < args.len() { |
| 1022 | let arg = &args[i]; |
| 1023 | if arg == "-r" { |
| 1024 | raw_mode = true; |
| 1025 | } else if arg == "-p" { |
| 1026 | // Next argument is the prompt |
| 1027 | i += 1; |
| 1028 | if i >= args.len() { |
| 1029 | eprintln!("read: -p: option requires an argument"); |
| 1030 | return error_result(); |
| 1031 | } |
| 1032 | prompt = args[i].clone(); |
| 1033 | } else if arg.starts_with('-') { |
| 1034 | eprintln!("read: {}: invalid option", arg); |
| 1035 | return error_result(); |
| 1036 | } else { |
| 1037 | var_names.push(arg.clone()); |
| 1038 | } |
| 1039 | i += 1; |
| 1040 | } |
| 1041 | |
| 1042 | // Default to REPLY if no variable names given |
| 1043 | if var_names.is_empty() { |
| 1044 | var_names.push("REPLY".to_string()); |
| 1045 | } |
| 1046 | |
| 1047 | // Display prompt if provided |
| 1048 | if !prompt.is_empty() { |
| 1049 | print!("{}", prompt); |
| 1050 | let _ = io::stdout().flush(); |
| 1051 | } |
| 1052 | |
| 1053 | // Read line from stdin |
| 1054 | let stdin = io::stdin(); |
| 1055 | let mut line = String::new(); |
| 1056 | match stdin.lock().read_line(&mut line) { |
| 1057 | Ok(0) => { |
| 1058 | // EOF |
| 1059 | return error_result(); |
| 1060 | } |
| 1061 | Ok(_) => { |
| 1062 | // Remove trailing newline |
| 1063 | if line.ends_with('\n') { |
| 1064 | line.pop(); |
| 1065 | if line.ends_with('\r') { |
| 1066 | line.pop(); |
| 1067 | } |
| 1068 | } |
| 1069 | } |
| 1070 | Err(_) => { |
| 1071 | return error_result(); |
| 1072 | } |
| 1073 | } |
| 1074 | |
| 1075 | // Handle backslash continuation (unless in raw mode) |
| 1076 | if !raw_mode { |
| 1077 | while line.ends_with('\\') { |
| 1078 | line.pop(); // Remove backslash |
| 1079 | let mut continuation = String::new(); |
| 1080 | match stdin.lock().read_line(&mut continuation) { |
| 1081 | Ok(0) => break, // EOF |
| 1082 | Ok(_) => { |
| 1083 | if continuation.ends_with('\n') { |
| 1084 | continuation.pop(); |
| 1085 | if continuation.ends_with('\r') { |
| 1086 | continuation.pop(); |
| 1087 | } |
| 1088 | } |
| 1089 | line.push_str(&continuation); |
| 1090 | } |
| 1091 | Err(_) => break, |
| 1092 | } |
| 1093 | } |
| 1094 | } |
| 1095 | |
| 1096 | // Get IFS for splitting (default to whitespace) |
| 1097 | let ifs = context.get_var("IFS").unwrap_or(" \t\n"); |
| 1098 | let ifs_chars: Vec<char> = ifs.chars().collect(); |
| 1099 | |
| 1100 | // Split the line and assign to variables |
| 1101 | if var_names.len() == 1 { |
| 1102 | // Single variable gets entire line |
| 1103 | let _ = context.set_var(&var_names[0], line); |
| 1104 | } else { |
| 1105 | // Multiple variables: split by IFS |
| 1106 | let words: Vec<&str> = if ifs_chars.is_empty() { |
| 1107 | // Empty IFS means split every character |
| 1108 | vec![line.as_str()] |
| 1109 | } else { |
| 1110 | // Split by IFS characters |
| 1111 | line.split(|c: char| ifs_chars.contains(&c)) |
| 1112 | .filter(|s| !s.is_empty()) |
| 1113 | .collect() |
| 1114 | }; |
| 1115 | |
| 1116 | // Assign words to variables |
| 1117 | for (i, var_name) in var_names.iter().enumerate() { |
| 1118 | if i < words.len() { |
| 1119 | if i == var_names.len() - 1 { |
| 1120 | // Last variable gets all remaining words |
| 1121 | let remaining = words[i..].join(" "); |
| 1122 | let _ = context.set_var(var_name, remaining); |
| 1123 | } else { |
| 1124 | let _ = context.set_var(var_name, words[i]); |
| 1125 | } |
| 1126 | } else { |
| 1127 | // No more input, set to empty |
| 1128 | let _ = context.set_var(var_name, ""); |
| 1129 | } |
| 1130 | } |
| 1131 | } |
| 1132 | |
| 1133 | success_result() |
| 1134 | } |
| 1135 | |
| 1136 | /// shift builtin - Shift positional parameters |
| 1137 | fn builtin_shift(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 1138 | // Parse the count (default 1) |
| 1139 | let count = if args.is_empty() { |
| 1140 | 1 |
| 1141 | } else { |
| 1142 | match args[0].parse::<usize>() { |
| 1143 | Ok(n) => n, |
| 1144 | Err(_) => { |
| 1145 | eprintln!("shift: {}: numeric argument required", args[0]); |
| 1146 | return error_result(); |
| 1147 | } |
| 1148 | } |
| 1149 | }; |
| 1150 | |
| 1151 | // Check if we have enough parameters to shift |
| 1152 | if count > context.positional_params.len() { |
| 1153 | eprintln!("shift: shift count ({}) exceeds number of positional parameters ({})", |
| 1154 | count, context.positional_params.len()); |
| 1155 | return error_result(); |
| 1156 | } |
| 1157 | |
| 1158 | // Shift the parameters |
| 1159 | context.positional_params.drain(0..count); |
| 1160 | |
| 1161 | success_result() |
| 1162 | } |
| 1163 | |
| 1164 | /// command builtin - Execute command bypassing functions and aliases |
| 1165 | fn builtin_command(args: &[String], context: &mut rush_expand::Context) -> Result<ExecutionResult, String> { |
| 1166 | let mut verbose = false; |
| 1167 | let mut very_verbose = false; |
| 1168 | let mut _use_default_path = false; // TODO: implement -p to use default PATH |
| 1169 | let mut cmd_args = Vec::new(); |
| 1170 | |
| 1171 | // Parse arguments |
| 1172 | let mut i = 0; |
| 1173 | while i < args.len() { |
| 1174 | let arg = &args[i]; |
| 1175 | if arg == "-v" { |
| 1176 | verbose = true; |
| 1177 | } else if arg == "-V" { |
| 1178 | very_verbose = true; |
| 1179 | } else if arg == "-p" { |
| 1180 | _use_default_path = true; |
| 1181 | } else if arg == "--" { |
| 1182 | // End of options |
| 1183 | i += 1; |
| 1184 | cmd_args.extend_from_slice(&args[i..]); |
| 1185 | break; |
| 1186 | } else if arg.starts_with('-') { |
| 1187 | return Err(format!("{}: invalid option", arg)); |
| 1188 | } else { |
| 1189 | cmd_args.extend_from_slice(&args[i..]); |
| 1190 | break; |
| 1191 | } |
| 1192 | i += 1; |
| 1193 | } |
| 1194 | |
| 1195 | if cmd_args.is_empty() { |
| 1196 | return Err("usage: command [-pvV] command [arg ...]".to_string()); |
| 1197 | } |
| 1198 | |
| 1199 | let cmd_name = &cmd_args[0]; |
| 1200 | |
| 1201 | // -v: print path to command |
| 1202 | if verbose { |
| 1203 | // Check if it's a builtin |
| 1204 | if execute_builtin(cmd_name, &[], context).is_some() { |
| 1205 | println!("{}", cmd_name); |
| 1206 | return Ok(success_result()); |
| 1207 | } |
| 1208 | |
| 1209 | // Check if it's in PATH |
| 1210 | if let Some(path) = find_in_path(cmd_name) { |
| 1211 | println!("{}", path.display()); |
| 1212 | return Ok(success_result()); |
| 1213 | } |
| 1214 | |
| 1215 | return Ok(error_result()); |
| 1216 | } |
| 1217 | |
| 1218 | // -V: verbose description |
| 1219 | if very_verbose { |
| 1220 | // Check if it's a builtin |
| 1221 | if execute_builtin(cmd_name, &[], context).is_some() { |
| 1222 | println!("{} is a shell builtin", cmd_name); |
| 1223 | return Ok(success_result()); |
| 1224 | } |
| 1225 | |
| 1226 | // Check if it's a function |
| 1227 | if context.functions.contains_key(cmd_name) { |
| 1228 | println!("{} is a function", cmd_name); |
| 1229 | return Ok(success_result()); |
| 1230 | } |
| 1231 | |
| 1232 | // Check if it's an alias |
| 1233 | if context.aliases.contains_key(cmd_name) { |
| 1234 | if let Some(alias_val) = context.aliases.get(cmd_name) { |
| 1235 | println!("{} is aliased to `{}'", cmd_name, alias_val); |
| 1236 | } |
| 1237 | return Ok(success_result()); |
| 1238 | } |
| 1239 | |
| 1240 | // Check if it's in PATH |
| 1241 | if let Some(path) = find_in_path(cmd_name) { |
| 1242 | println!("{} is {}", cmd_name, path.display()); |
| 1243 | return Ok(success_result()); |
| 1244 | } |
| 1245 | |
| 1246 | return Err(format!("{}: not found", cmd_name)); |
| 1247 | } |
| 1248 | |
| 1249 | // Execute the command, bypassing functions and aliases |
| 1250 | // First check if it's a builtin |
| 1251 | if let Some(result) = execute_builtin(cmd_name, &cmd_args[1..], context) { |
| 1252 | return Ok(result); |
| 1253 | } |
| 1254 | |
| 1255 | // Find in PATH and execute |
| 1256 | let program_path = find_in_path(cmd_name) |
| 1257 | .ok_or_else(|| format!("{}: command not found", cmd_name))?; |
| 1258 | |
| 1259 | let mut command = std::process::Command::new(program_path); |
| 1260 | command.args(&cmd_args[1..]); |
| 1261 | |
| 1262 | // Execute |
| 1263 | #[cfg(unix)] |
| 1264 | { |
| 1265 | crate::terminal::unix::execute_with_terminal_control(command, false) |
| 1266 | .map_err(|e| e.to_string()) |
| 1267 | } |
| 1268 | |
| 1269 | #[cfg(not(unix))] |
| 1270 | { |
| 1271 | crate::terminal::non_unix::execute_with_terminal_control(command, false) |
| 1272 | .map_err(|e| e.to_string()) |
| 1273 | } |
| 1274 | } |
| 1275 | |
| 1276 | /// wait builtin - Wait for background jobs to complete |
| 1277 | fn builtin_wait(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 1278 | #[cfg(unix)] |
| 1279 | { |
| 1280 | use nix::sys::wait::{waitpid, WaitPidFlag}; |
| 1281 | use nix::unistd::Pid; |
| 1282 | |
| 1283 | // If no arguments, wait for all background jobs |
| 1284 | if args.is_empty() { |
| 1285 | let mut last_status = 0; |
| 1286 | |
| 1287 | // Get all job PIDs |
| 1288 | let job_pids: Vec<Pid> = context.job_list.jobs() |
| 1289 | .map(|job| job.pgid) |
| 1290 | .collect(); |
| 1291 | |
| 1292 | for pgid in job_pids { |
| 1293 | match waitpid(pgid, Some(WaitPidFlag::empty())) { |
| 1294 | Ok(status) => { |
| 1295 | use nix::sys::wait::WaitStatus; |
| 1296 | match status { |
| 1297 | WaitStatus::Exited(_, code) => last_status = code, |
| 1298 | WaitStatus::Signaled(_, sig, _) => last_status = 128 + sig as i32, |
| 1299 | _ => {} |
| 1300 | } |
| 1301 | } |
| 1302 | Err(_) => {} |
| 1303 | } |
| 1304 | } |
| 1305 | |
| 1306 | return exit_code_to_result(last_status); |
| 1307 | } |
| 1308 | |
| 1309 | // Wait for specific PIDs |
| 1310 | let mut last_status = 0; |
| 1311 | for arg in args { |
| 1312 | let pid = match arg.parse::<i32>() { |
| 1313 | Ok(p) => Pid::from_raw(p), |
| 1314 | Err(_) => { |
| 1315 | eprintln!("wait: {}: not a valid process ID", arg); |
| 1316 | return error_result(); |
| 1317 | } |
| 1318 | }; |
| 1319 | |
| 1320 | match waitpid(pid, Some(WaitPidFlag::empty())) { |
| 1321 | Ok(status) => { |
| 1322 | use nix::sys::wait::WaitStatus; |
| 1323 | match status { |
| 1324 | WaitStatus::Exited(_, code) => last_status = code, |
| 1325 | WaitStatus::Signaled(_, sig, _) => last_status = 128 + sig as i32, |
| 1326 | _ => {} |
| 1327 | } |
| 1328 | } |
| 1329 | Err(_) => { |
| 1330 | eprintln!("wait: pid {}: no such job", pid); |
| 1331 | return error_result(); |
| 1332 | } |
| 1333 | } |
| 1334 | } |
| 1335 | |
| 1336 | exit_code_to_result(last_status) |
| 1337 | } |
| 1338 | |
| 1339 | #[cfg(not(unix))] |
| 1340 | { |
| 1341 | eprintln!("wait: job control not supported on this platform"); |
| 1342 | error_result() |
| 1343 | } |
| 1344 | } |
| 1345 | |
| 1346 | /// kill builtin - Send signals to processes |
| 1347 | fn builtin_kill(args: &[String], _context: &mut rush_expand::Context) -> ExecutionResult { |
| 1348 | #[cfg(unix)] |
| 1349 | { |
| 1350 | use nix::sys::signal::{kill, Signal}; |
| 1351 | use nix::unistd::Pid; |
| 1352 | |
| 1353 | let mut signal = Signal::SIGTERM; // Default signal |
| 1354 | let mut pids = Vec::new(); |
| 1355 | let mut list_signals = false; |
| 1356 | |
| 1357 | // Parse arguments |
| 1358 | let mut i = 0; |
| 1359 | while i < args.len() { |
| 1360 | let arg = &args[i]; |
| 1361 | |
| 1362 | if arg == "-l" { |
| 1363 | list_signals = true; |
| 1364 | i += 1; |
| 1365 | continue; |
| 1366 | } |
| 1367 | |
| 1368 | if arg.starts_with('-') && arg.len() > 1 { |
| 1369 | // Parse signal |
| 1370 | let sig_str = &arg[1..]; |
| 1371 | |
| 1372 | // Try to parse as signal number |
| 1373 | if let Ok(num) = sig_str.parse::<i32>() { |
| 1374 | signal = match Signal::try_from(num) { |
| 1375 | Ok(sig) => sig, |
| 1376 | Err(_) => { |
| 1377 | eprintln!("kill: {}: invalid signal specification", num); |
| 1378 | return error_result(); |
| 1379 | } |
| 1380 | }; |
| 1381 | } else { |
| 1382 | // Try to parse as signal name |
| 1383 | let sig_upper = sig_str.to_uppercase(); |
| 1384 | let sig_name = sig_upper.strip_prefix("SIG").unwrap_or(&sig_upper); |
| 1385 | |
| 1386 | signal = match sig_name { |
| 1387 | "HUP" | "1" => Signal::SIGHUP, |
| 1388 | "INT" | "2" => Signal::SIGINT, |
| 1389 | "QUIT" | "3" => Signal::SIGQUIT, |
| 1390 | "ABRT" | "6" => Signal::SIGABRT, |
| 1391 | "KILL" | "9" => Signal::SIGKILL, |
| 1392 | "ALRM" | "14" => Signal::SIGALRM, |
| 1393 | "TERM" | "15" => Signal::SIGTERM, |
| 1394 | "USR1" | "10" => Signal::SIGUSR1, |
| 1395 | "USR2" | "12" => Signal::SIGUSR2, |
| 1396 | "CONT" | "18" => Signal::SIGCONT, |
| 1397 | "STOP" | "19" => Signal::SIGSTOP, |
| 1398 | "TSTP" | "20" => Signal::SIGTSTP, |
| 1399 | _ => { |
| 1400 | eprintln!("kill: {}: invalid signal specification", sig_str); |
| 1401 | return error_result(); |
| 1402 | } |
| 1403 | }; |
| 1404 | } |
| 1405 | i += 1; |
| 1406 | continue; |
| 1407 | } |
| 1408 | |
| 1409 | // It's a PID |
| 1410 | pids.push(arg.clone()); |
| 1411 | i += 1; |
| 1412 | } |
| 1413 | |
| 1414 | // Handle -l (list signals) |
| 1415 | if list_signals { |
| 1416 | println!(" 1) HUP\t 2) INT\t 3) QUIT\t 6) ABRT\t 9) KILL"); |
| 1417 | println!("10) USR1\t12) USR2\t14) ALRM\t15) TERM"); |
| 1418 | println!("18) CONT\t19) STOP\t20) TSTP"); |
| 1419 | return success_result(); |
| 1420 | } |
| 1421 | |
| 1422 | // Must have at least one PID |
| 1423 | if pids.is_empty() { |
| 1424 | eprintln!("kill: usage: kill [-s sigspec | -signum] pid ..."); |
| 1425 | return error_result(); |
| 1426 | } |
| 1427 | |
| 1428 | // Send signal to each PID |
| 1429 | let mut had_error = false; |
| 1430 | for pid_str in &pids { |
| 1431 | let pid = match pid_str.parse::<i32>() { |
| 1432 | Ok(p) => Pid::from_raw(p), |
| 1433 | Err(_) => { |
| 1434 | eprintln!("kill: {}: arguments must be process or job IDs", pid_str); |
| 1435 | had_error = true; |
| 1436 | continue; |
| 1437 | } |
| 1438 | }; |
| 1439 | |
| 1440 | if let Err(e) = kill(pid, signal) { |
| 1441 | eprintln!("kill: ({}): {}", pid, e); |
| 1442 | had_error = true; |
| 1443 | } |
| 1444 | } |
| 1445 | |
| 1446 | if had_error { |
| 1447 | error_result() |
| 1448 | } else { |
| 1449 | success_result() |
| 1450 | } |
| 1451 | } |
| 1452 | |
| 1453 | #[cfg(not(unix))] |
| 1454 | { |
| 1455 | eprintln!("kill: not supported on this platform"); |
| 1456 | error_result() |
| 1457 | } |
| 1458 | } |
| 1459 | |
| 1460 | /// exec builtin - Replace shell with command |
| 1461 | fn builtin_exec(args: &[String], _context: &mut rush_expand::Context) -> Result<ExecutionResult, String> { |
| 1462 | if args.is_empty() { |
| 1463 | return Err("usage: exec command [args...]".to_string()); |
| 1464 | } |
| 1465 | |
| 1466 | let cmd_name = &args[0]; |
| 1467 | let cmd_args = &args[1..]; |
| 1468 | |
| 1469 | // Find the command in PATH |
| 1470 | let program_path = find_in_path(cmd_name) |
| 1471 | .ok_or_else(|| format!("{}: command not found", cmd_name))?; |
| 1472 | |
| 1473 | #[cfg(unix)] |
| 1474 | { |
| 1475 | use std::ffi::CString; |
| 1476 | use std::os::unix::ffi::OsStrExt; |
| 1477 | |
| 1478 | // Convert path to CString |
| 1479 | let path_cstr = CString::new(program_path.as_os_str().as_bytes()) |
| 1480 | .map_err(|e| format!("invalid path: {}", e))?; |
| 1481 | |
| 1482 | // Convert args to CStrings |
| 1483 | let mut exec_args = vec![path_cstr.clone()]; |
| 1484 | for arg in cmd_args { |
| 1485 | let arg_cstr = CString::new(arg.as_bytes()) |
| 1486 | .map_err(|e| format!("invalid argument: {}", e))?; |
| 1487 | exec_args.push(arg_cstr); |
| 1488 | } |
| 1489 | |
| 1490 | // Execute - this replaces the current process |
| 1491 | // If exec succeeds, this function never returns |
| 1492 | nix::unistd::execv(&path_cstr, &exec_args) |
| 1493 | .map_err(|e| format!("exec failed: {}", e))?; |
| 1494 | |
| 1495 | // This should never be reached |
| 1496 | unreachable!() |
| 1497 | } |
| 1498 | |
| 1499 | #[cfg(not(unix))] |
| 1500 | { |
| 1501 | Err("exec: not supported on this platform".to_string()) |
| 1502 | } |
| 1503 | } |
| 1504 | |
| 1505 | /// times builtin - Display process times |
| 1506 | fn builtin_times(_args: &[String], _context: &mut rush_expand::Context) -> ExecutionResult { |
| 1507 | #[cfg(unix)] |
| 1508 | { |
| 1509 | use nix::sys::resource::{getrusage, UsageWho}; |
| 1510 | |
| 1511 | // Get rusage for self (the shell) |
| 1512 | match getrusage(UsageWho::RUSAGE_SELF) { |
| 1513 | Ok(self_usage) => { |
| 1514 | let user_sec = self_usage.user_time().tv_sec(); |
| 1515 | let user_usec = self_usage.user_time().tv_usec(); |
| 1516 | let sys_sec = self_usage.system_time().tv_sec(); |
| 1517 | let sys_usec = self_usage.system_time().tv_usec(); |
| 1518 | |
| 1519 | // Get rusage for children |
| 1520 | match getrusage(UsageWho::RUSAGE_CHILDREN) { |
| 1521 | Ok(child_usage) => { |
| 1522 | let child_user_sec = child_usage.user_time().tv_sec(); |
| 1523 | let child_user_usec = child_usage.user_time().tv_usec(); |
| 1524 | let child_sys_sec = child_usage.system_time().tv_sec(); |
| 1525 | let child_sys_usec = child_usage.system_time().tv_usec(); |
| 1526 | |
| 1527 | println!("{}m{:.3}s {}m{:.3}s", |
| 1528 | user_sec / 60, |
| 1529 | (user_sec % 60) as f64 + user_usec as f64 / 1_000_000.0, |
| 1530 | sys_sec / 60, |
| 1531 | (sys_sec % 60) as f64 + sys_usec as f64 / 1_000_000.0); |
| 1532 | println!("{}m{:.3}s {}m{:.3}s", |
| 1533 | child_user_sec / 60, |
| 1534 | (child_user_sec % 60) as f64 + child_user_usec as f64 / 1_000_000.0, |
| 1535 | child_sys_sec / 60, |
| 1536 | (child_sys_sec % 60) as f64 + child_sys_usec as f64 / 1_000_000.0); |
| 1537 | } |
| 1538 | Err(_) => { |
| 1539 | eprintln!("times: failed to get child process times"); |
| 1540 | return error_result(); |
| 1541 | } |
| 1542 | } |
| 1543 | } |
| 1544 | Err(_) => { |
| 1545 | eprintln!("times: failed to get process times"); |
| 1546 | return error_result(); |
| 1547 | } |
| 1548 | } |
| 1549 | |
| 1550 | success_result() |
| 1551 | } |
| 1552 | |
| 1553 | #[cfg(not(unix))] |
| 1554 | { |
| 1555 | eprintln!("times: not supported on this platform"); |
| 1556 | error_result() |
| 1557 | } |
| 1558 | } |
| 1559 | |
| 1560 | /// umask builtin - Set or display file creation mask |
| 1561 | fn builtin_umask(args: &[String], _context: &mut rush_expand::Context) -> ExecutionResult { |
| 1562 | #[cfg(unix)] |
| 1563 | { |
| 1564 | use nix::sys::stat::{umask, Mode}; |
| 1565 | |
| 1566 | let mut symbolic = false; |
| 1567 | |
| 1568 | // Parse options |
| 1569 | let mut mask_arg = None; |
| 1570 | for arg in args { |
| 1571 | if arg == "-S" { |
| 1572 | symbolic = true; |
| 1573 | } else if arg.starts_with('-') { |
| 1574 | eprintln!("umask: {}: invalid option", arg); |
| 1575 | return error_result(); |
| 1576 | } else { |
| 1577 | mask_arg = Some(arg); |
| 1578 | } |
| 1579 | } |
| 1580 | |
| 1581 | if let Some(mask_str) = mask_arg { |
| 1582 | // Set new mask |
| 1583 | let new_mask = if mask_str.starts_with('0') { |
| 1584 | // Octal format |
| 1585 | match u32::from_str_radix(mask_str, 8) { |
| 1586 | Ok(m) => Mode::from_bits_truncate(m), |
| 1587 | Err(_) => { |
| 1588 | eprintln!("umask: {}: invalid octal number", mask_str); |
| 1589 | return error_result(); |
| 1590 | } |
| 1591 | } |
| 1592 | } else { |
| 1593 | // Decimal format (also support) |
| 1594 | match mask_str.parse::<u32>() { |
| 1595 | Ok(m) => Mode::from_bits_truncate(m), |
| 1596 | Err(_) => { |
| 1597 | eprintln!("umask: {}: invalid number", mask_str); |
| 1598 | return error_result(); |
| 1599 | } |
| 1600 | } |
| 1601 | }; |
| 1602 | |
| 1603 | umask(new_mask); |
| 1604 | } else { |
| 1605 | // Display current mask |
| 1606 | // We need to set it twice to read the current value |
| 1607 | let current = umask(Mode::empty()); |
| 1608 | umask(current); |
| 1609 | |
| 1610 | if symbolic { |
| 1611 | // Symbolic format: u=rwx,g=rwx,o=rwx |
| 1612 | let mode = current.bits(); |
| 1613 | let u_r = if mode & 0o400 == 0 { 'r' } else { '-' }; |
| 1614 | let u_w = if mode & 0o200 == 0 { 'w' } else { '-' }; |
| 1615 | let u_x = if mode & 0o100 == 0 { 'x' } else { '-' }; |
| 1616 | let g_r = if mode & 0o040 == 0 { 'r' } else { '-' }; |
| 1617 | let g_w = if mode & 0o020 == 0 { 'w' } else { '-' }; |
| 1618 | let g_x = if mode & 0o010 == 0 { 'x' } else { '-' }; |
| 1619 | let o_r = if mode & 0o004 == 0 { 'r' } else { '-' }; |
| 1620 | let o_w = if mode & 0o002 == 0 { 'w' } else { '-' }; |
| 1621 | let o_x = if mode & 0o001 == 0 { 'x' } else { '-' }; |
| 1622 | |
| 1623 | println!("u={}{}{},g={}{}{},o={}{}{}", |
| 1624 | u_r, u_w, u_x, g_r, g_w, g_x, o_r, o_w, o_x); |
| 1625 | } else { |
| 1626 | // Octal format |
| 1627 | println!("{:04o}", current.bits()); |
| 1628 | } |
| 1629 | } |
| 1630 | |
| 1631 | success_result() |
| 1632 | } |
| 1633 | |
| 1634 | #[cfg(not(unix))] |
| 1635 | { |
| 1636 | eprintln!("umask: not supported on this platform"); |
| 1637 | error_result() |
| 1638 | } |
| 1639 | } |
| 1640 | |
| 1641 | /// hash builtin - Remember or report command locations |
| 1642 | fn builtin_hash(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 1643 | let mut clear_hash = false; |
| 1644 | let mut print_all = false; |
| 1645 | let mut commands = Vec::new(); |
| 1646 | |
| 1647 | // Parse arguments |
| 1648 | for arg in args { |
| 1649 | if arg == "-r" { |
| 1650 | clear_hash = true; |
| 1651 | } else if arg == "-l" { |
| 1652 | print_all = true; |
| 1653 | } else if arg.starts_with('-') { |
| 1654 | eprintln!("hash: {}: invalid option", arg); |
| 1655 | return error_result(); |
| 1656 | } else { |
| 1657 | commands.push(arg.clone()); |
| 1658 | } |
| 1659 | } |
| 1660 | |
| 1661 | // Clear hash table |
| 1662 | if clear_hash { |
| 1663 | context.command_hash.clear(); |
| 1664 | return success_result(); |
| 1665 | } |
| 1666 | |
| 1667 | // No arguments: display hash table |
| 1668 | if commands.is_empty() { |
| 1669 | if context.command_hash.is_empty() { |
| 1670 | // Nothing to display |
| 1671 | return success_result(); |
| 1672 | } |
| 1673 | |
| 1674 | if print_all { |
| 1675 | // List format: path |
| 1676 | for (name, path) in &context.command_hash { |
| 1677 | println!("builtin hash -p {} {}", path, name); |
| 1678 | } |
| 1679 | } else { |
| 1680 | // Table format: hits command |
| 1681 | for (name, path) in &context.command_hash { |
| 1682 | println!("{}\t{}", name, path); |
| 1683 | } |
| 1684 | } |
| 1685 | return success_result(); |
| 1686 | } |
| 1687 | |
| 1688 | // Add commands to hash table |
| 1689 | let mut had_error = false; |
| 1690 | for cmd_name in &commands { |
| 1691 | if let Some(path) = find_in_path(cmd_name) { |
| 1692 | context.command_hash.insert(cmd_name.clone(), path.display().to_string()); |
| 1693 | } else { |
| 1694 | eprintln!("hash: {}: not found", cmd_name); |
| 1695 | had_error = true; |
| 1696 | } |
| 1697 | } |
| 1698 | |
| 1699 | if had_error { |
| 1700 | error_result() |
| 1701 | } else { |
| 1702 | success_result() |
| 1703 | } |
| 1704 | } |
| 1705 | |
| 1706 | /// getopts builtin - Parse utility options |
| 1707 | fn builtin_getopts(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 1708 | if args.len() < 2 { |
| 1709 | eprintln!("getopts: usage: getopts optstring name [args...]"); |
| 1710 | return error_result(); |
| 1711 | } |
| 1712 | |
| 1713 | let optstring = &args[0]; |
| 1714 | let var_name = &args[1]; |
| 1715 | |
| 1716 | // Get arguments to parse (either from args[2..] or positional parameters) |
| 1717 | let parse_args: Vec<String> = if args.len() > 2 { |
| 1718 | args[2..].to_vec() |
| 1719 | } else { |
| 1720 | context.positional_params.clone() |
| 1721 | }; |
| 1722 | |
| 1723 | // Check if we're done parsing |
| 1724 | if context.optind > parse_args.len() { |
| 1725 | // Reset OPTIND for next getopts call |
| 1726 | context.optind = 1; |
| 1727 | let _ = context.set_var("OPTIND", "1"); |
| 1728 | return error_result(); // Return 1 to indicate done |
| 1729 | } |
| 1730 | |
| 1731 | let current_arg = &parse_args[context.optind - 1]; |
| 1732 | |
| 1733 | // Check if this is an option |
| 1734 | if !current_arg.starts_with('-') || current_arg == "-" { |
| 1735 | // Not an option, we're done |
| 1736 | context.optind = 1; |
| 1737 | let _ = context.set_var("OPTIND", "1"); |
| 1738 | return error_result(); |
| 1739 | } |
| 1740 | |
| 1741 | // Check for end of options marker "--" |
| 1742 | if current_arg == "--" { |
| 1743 | context.optind += 1; |
| 1744 | let _ = context.set_var("OPTIND", context.optind.to_string()); |
| 1745 | context.optind = 1; |
| 1746 | return error_result(); |
| 1747 | } |
| 1748 | |
| 1749 | // Parse the option |
| 1750 | // For simplicity, we'll just handle single character options |
| 1751 | let opt_chars: Vec<char> = current_arg.chars().skip(1).collect(); |
| 1752 | if opt_chars.is_empty() { |
| 1753 | context.optind += 1; |
| 1754 | let _ = context.set_var("OPTIND", context.optind.to_string()); |
| 1755 | return error_result(); |
| 1756 | } |
| 1757 | |
| 1758 | let opt_char = opt_chars[0]; |
| 1759 | |
| 1760 | // Check if option is in optstring |
| 1761 | if let Some(pos) = optstring.find(opt_char) { |
| 1762 | // Set the variable to the option character |
| 1763 | let _ = context.set_var(var_name, opt_char.to_string()); |
| 1764 | |
| 1765 | // Check if option requires an argument |
| 1766 | if pos + 1 < optstring.len() && optstring.chars().nth(pos + 1) == Some(':') { |
| 1767 | // Option requires an argument |
| 1768 | if opt_chars.len() > 1 { |
| 1769 | // Argument is in same word: -oARG |
| 1770 | let arg_value: String = opt_chars[1..].iter().collect(); |
| 1771 | let _ = context.set_var("OPTARG", arg_value); |
| 1772 | } else if context.optind < parse_args.len() { |
| 1773 | // Argument is next word: -o ARG |
| 1774 | context.optind += 1; |
| 1775 | let arg_value = &parse_args[context.optind - 1]; |
| 1776 | let _ = context.set_var("OPTARG", arg_value); |
| 1777 | } else { |
| 1778 | // Missing required argument |
| 1779 | if optstring.starts_with(':') { |
| 1780 | // Silent mode: set var to ':', OPTARG to option char |
| 1781 | let _ = context.set_var(var_name, ":"); |
| 1782 | let _ = context.set_var("OPTARG", opt_char.to_string()); |
| 1783 | } else { |
| 1784 | eprintln!("getopts: option requires an argument -- {}", opt_char); |
| 1785 | let _ = context.set_var(var_name, "?"); |
| 1786 | let _ = context.set_var("OPTARG", opt_char.to_string()); |
| 1787 | } |
| 1788 | context.optind += 1; |
| 1789 | let _ = context.set_var("OPTIND", context.optind.to_string()); |
| 1790 | return success_result(); |
| 1791 | } |
| 1792 | } |
| 1793 | |
| 1794 | context.optind += 1; |
| 1795 | let _ = context.set_var("OPTIND", context.optind.to_string()); |
| 1796 | success_result() |
| 1797 | } else { |
| 1798 | // Invalid option |
| 1799 | if optstring.starts_with(':') { |
| 1800 | // Silent mode: set var to '?' |
| 1801 | let _ = context.set_var(var_name, "?"); |
| 1802 | let _ = context.set_var("OPTARG", opt_char.to_string()); |
| 1803 | } else { |
| 1804 | eprintln!("getopts: illegal option -- {}", opt_char); |
| 1805 | let _ = context.set_var(var_name, "?"); |
| 1806 | let _ = context.set_var("OPTARG", opt_char.to_string()); |
| 1807 | } |
| 1808 | context.optind += 1; |
| 1809 | let _ = context.set_var("OPTIND", context.optind.to_string()); |
| 1810 | success_result() |
| 1811 | } |
| 1812 | } |
| 1813 | |
| 1814 | #[cfg(unix)] |
| 1815 | pub(crate) fn success_result() -> ExecutionResult { |
| 1816 | ExecutionResult { |
| 1817 | exit_status: std::process::ExitStatus::from_raw(0), |
| 1818 | job_control: None, |
| 1819 | } |
| 1820 | } |
| 1821 | |
| 1822 | #[cfg(unix)] |
| 1823 | fn error_result() -> ExecutionResult { |
| 1824 | ExecutionResult { |
| 1825 | exit_status: std::process::ExitStatus::from_raw(1 << 8), |
| 1826 | job_control: None, |
| 1827 | } |
| 1828 | } |
| 1829 | |
| 1830 | #[cfg(not(unix))] |
| 1831 | pub(crate) fn success_result() -> ExecutionResult { |
| 1832 | ExecutionResult { |
| 1833 | exit_status: std::process::ExitStatus::default(), |
| 1834 | } |
| 1835 | } |
| 1836 | |
| 1837 | #[cfg(not(unix))] |
| 1838 | fn error_result() -> ExecutionResult { |
| 1839 | // On non-Unix, we can't easily create a failed ExitStatus |
| 1840 | // This is a limitation for now |
| 1841 | ExecutionResult { |
| 1842 | exit_status: std::process::ExitStatus::default(), |
| 1843 | } |
| 1844 | } |
| 1845 | |
| 1846 | /// Find a command in PATH |
| 1847 | pub(crate) fn find_in_path(command: &str) -> Option<PathBuf> { |
| 1848 | // If the command contains a slash, treat it as a path |
| 1849 | if command.contains('/') { |
| 1850 | let path = PathBuf::from(command); |
| 1851 | if path.exists() && is_executable(&path) { |
| 1852 | return Some(path); |
| 1853 | } |
| 1854 | return None; |
| 1855 | } |
| 1856 | |
| 1857 | // Search in PATH |
| 1858 | let path_var = env::var_os("PATH")?; |
| 1859 | env::split_paths(&path_var) |
| 1860 | .map(|dir| dir.join(command)) |
| 1861 | .find(|path| path.exists() && is_executable(path)) |
| 1862 | } |
| 1863 | |
| 1864 | /// Check if a file is executable |
| 1865 | #[cfg(unix)] |
| 1866 | fn is_executable(path: &PathBuf) -> bool { |
| 1867 | use std::os::unix::fs::PermissionsExt; |
| 1868 | path.metadata() |
| 1869 | .map(|m| m.permissions().mode() & 0o111 != 0) |
| 1870 | .unwrap_or(false) |
| 1871 | } |
| 1872 | |
| 1873 | #[cfg(not(unix))] |
| 1874 | fn is_executable(_path: &PathBuf) -> bool { |
| 1875 | // On non-Unix systems, assume existence is enough |
| 1876 | true |
| 1877 | } |
| 1878 | |
| 1879 | // Job control builtins (Unix only) |
| 1880 | |
| 1881 | #[cfg(unix)] |
| 1882 | fn builtin_jobs(context: &mut rush_expand::Context) -> ExecutionResult { |
| 1883 | // List all jobs in sorted order |
| 1884 | for job in context.job_list.jobs_sorted() { |
| 1885 | println!("[{}] {} {}", job.id, job.status_string(), job.command); |
| 1886 | } |
| 1887 | |
| 1888 | success_result() |
| 1889 | } |
| 1890 | |
| 1891 | #[cfg(unix)] |
| 1892 | fn builtin_fg(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 1893 | use nix::sys::signal::{kill, Signal}; |
| 1894 | use nix::sys::wait::{waitpid, WaitPidFlag, WaitStatus}; |
| 1895 | use rush_job::{give_terminal_to, JobState}; |
| 1896 | |
| 1897 | // Parse job ID argument (default to most recent job) |
| 1898 | let job_id = if let Some(arg) = args.first() { |
| 1899 | match arg.parse::<u32>() { |
| 1900 | Ok(id) => id, |
| 1901 | Err(_) => { |
| 1902 | eprintln!("fg: invalid job id: {}", arg); |
| 1903 | return error_result(); |
| 1904 | } |
| 1905 | } |
| 1906 | } else { |
| 1907 | // Get most recent job |
| 1908 | match context.job_list.current_job() { |
| 1909 | Some(job) => job.id, |
| 1910 | None => { |
| 1911 | eprintln!("fg: no current job"); |
| 1912 | return error_result(); |
| 1913 | } |
| 1914 | } |
| 1915 | }; |
| 1916 | |
| 1917 | // Get the job's pgid before we mutate the job |
| 1918 | let (pgid, command, is_stopped) = { |
| 1919 | let job = match context.job_list.get_job(job_id) { |
| 1920 | Some(job) => job, |
| 1921 | None => { |
| 1922 | eprintln!("fg: job {} not found", job_id); |
| 1923 | return error_result(); |
| 1924 | } |
| 1925 | }; |
| 1926 | (job.pgid, job.command.clone(), job.is_stopped()) |
| 1927 | }; |
| 1928 | |
| 1929 | // If the job is stopped, send SIGCONT to resume it |
| 1930 | if is_stopped { |
| 1931 | if let Err(e) = kill(pgid, Signal::SIGCONT) { |
| 1932 | eprintln!("fg: failed to continue job: {}", e); |
| 1933 | return error_result(); |
| 1934 | } |
| 1935 | } |
| 1936 | |
| 1937 | // Give terminal control to the job |
| 1938 | if let Err(e) = give_terminal_to(pgid) { |
| 1939 | eprintln!("fg: failed to give terminal control: {}", e); |
| 1940 | return error_result(); |
| 1941 | } |
| 1942 | |
| 1943 | // Update job state |
| 1944 | if let Some(job) = context.job_list.get_job_mut(job_id) { |
| 1945 | job.state = JobState::Running; |
| 1946 | } |
| 1947 | println!("{}", command); |
| 1948 | |
| 1949 | // Wait for the job to complete or stop (wait on the process group leader) |
| 1950 | loop { |
| 1951 | match waitpid(pgid, Some(WaitPidFlag::WUNTRACED)) { |
| 1952 | Ok(WaitStatus::Exited(_, code)) => { |
| 1953 | if let Some(job) = context.job_list.get_job_mut(job_id) { |
| 1954 | job.state = JobState::Done(code); |
| 1955 | } |
| 1956 | |
| 1957 | // Restore terminal to shell |
| 1958 | if let Err(e) = rush_job::restore_shell_terminal(nix::unistd::getpgrp()) { |
| 1959 | eprintln!("fg: failed to restore terminal: {}", e); |
| 1960 | } |
| 1961 | |
| 1962 | return exit_code_to_result(code); |
| 1963 | } |
| 1964 | Ok(WaitStatus::Signaled(_, sig, _)) => { |
| 1965 | let exit_code = 128 + sig as i32; |
| 1966 | if let Some(job) = context.job_list.get_job_mut(job_id) { |
| 1967 | job.state = JobState::Done(exit_code); |
| 1968 | } |
| 1969 | |
| 1970 | // Restore terminal to shell |
| 1971 | if let Err(e) = rush_job::restore_shell_terminal(nix::unistd::getpgrp()) { |
| 1972 | eprintln!("fg: failed to restore terminal: {}", e); |
| 1973 | } |
| 1974 | |
| 1975 | return exit_code_to_result(exit_code); |
| 1976 | } |
| 1977 | Ok(WaitStatus::Stopped(_, _)) => { |
| 1978 | if let Some(job) = context.job_list.get_job_mut(job_id) { |
| 1979 | job.state = JobState::Stopped; |
| 1980 | } |
| 1981 | |
| 1982 | // Restore terminal to shell |
| 1983 | if let Err(e) = rush_job::restore_shell_terminal(nix::unistd::getpgrp()) { |
| 1984 | eprintln!("fg: failed to restore terminal: {}", e); |
| 1985 | } |
| 1986 | |
| 1987 | return success_result(); |
| 1988 | } |
| 1989 | Err(e) => { |
| 1990 | eprintln!("fg: wait failed: {}", e); |
| 1991 | |
| 1992 | // Restore terminal to shell |
| 1993 | if let Err(e) = rush_job::restore_shell_terminal(nix::unistd::getpgrp()) { |
| 1994 | eprintln!("fg: failed to restore terminal: {}", e); |
| 1995 | } |
| 1996 | |
| 1997 | return error_result(); |
| 1998 | } |
| 1999 | _ => continue, |
| 2000 | } |
| 2001 | } |
| 2002 | } |
| 2003 | |
| 2004 | #[cfg(unix)] |
| 2005 | fn builtin_bg(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 2006 | use nix::sys::signal::{kill, Signal}; |
| 2007 | use rush_job::JobState; |
| 2008 | |
| 2009 | // Parse job ID argument (default to most recent stopped job) |
| 2010 | let job_id = if let Some(arg) = args.first() { |
| 2011 | match arg.parse::<u32>() { |
| 2012 | Ok(id) => id, |
| 2013 | Err(_) => { |
| 2014 | eprintln!("bg: invalid job id: {}", arg); |
| 2015 | return error_result(); |
| 2016 | } |
| 2017 | } |
| 2018 | } else { |
| 2019 | // Get most recent stopped job |
| 2020 | match context |
| 2021 | .job_list |
| 2022 | .jobs() |
| 2023 | .filter(|j| j.is_stopped()) |
| 2024 | .max_by_key(|j| j.id) |
| 2025 | { |
| 2026 | Some(job) => job.id, |
| 2027 | None => { |
| 2028 | eprintln!("bg: no stopped job"); |
| 2029 | return error_result(); |
| 2030 | } |
| 2031 | } |
| 2032 | }; |
| 2033 | |
| 2034 | // Get the job |
| 2035 | let job = match context.job_list.get_job_mut(job_id) { |
| 2036 | Some(job) => job, |
| 2037 | None => { |
| 2038 | eprintln!("bg: job {} not found", job_id); |
| 2039 | return error_result(); |
| 2040 | } |
| 2041 | }; |
| 2042 | |
| 2043 | // Job must be stopped |
| 2044 | if !job.is_stopped() { |
| 2045 | eprintln!("bg: job {} is not stopped", job_id); |
| 2046 | return error_result(); |
| 2047 | } |
| 2048 | |
| 2049 | // Send SIGCONT to resume the job in the background |
| 2050 | let pgid = job.pgid; |
| 2051 | if let Err(e) = kill(pgid, Signal::SIGCONT) { |
| 2052 | eprintln!("bg: failed to continue job: {}", e); |
| 2053 | return error_result(); |
| 2054 | } |
| 2055 | |
| 2056 | // Update job state |
| 2057 | job.state = JobState::Running; |
| 2058 | println!("[{}] {}", job.id, job.command); |
| 2059 | |
| 2060 | success_result() |
| 2061 | } |
| 2062 | |
| 2063 | #[cfg(unix)] |
| 2064 | fn builtin_coproc(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 2065 | use nix::unistd::{fork, pipe, close, dup2, setpgid, ForkResult}; |
| 2066 | use std::ffi::CString; |
| 2067 | use std::os::unix::ffi::OsStrExt; |
| 2068 | use std::os::unix::io::IntoRawFd; |
| 2069 | |
| 2070 | // Parse arguments: coproc [NAME] command [args...] |
| 2071 | let (name, command_args) = if args.is_empty() { |
| 2072 | eprintln!("coproc: usage: coproc [NAME] command [args...]"); |
| 2073 | return error_result(); |
| 2074 | } else if args.len() == 1 { |
| 2075 | // Single arg: could be just command with default name |
| 2076 | ("COPROC".to_string(), args.to_vec()) |
| 2077 | } else { |
| 2078 | // Check if first arg is a valid name (starts with letter or underscore) |
| 2079 | let first = &args[0]; |
| 2080 | if first.chars().next().map(|c| c.is_alphabetic() || c == '_').unwrap_or(false) |
| 2081 | && first.chars().all(|c| c.is_alphanumeric() || c == '_') |
| 2082 | && args.len() > 1 |
| 2083 | { |
| 2084 | // First arg is name, rest is command |
| 2085 | (first.clone(), args[1..].to_vec()) |
| 2086 | } else { |
| 2087 | // First arg is part of command, use default name |
| 2088 | ("COPROC".to_string(), args.to_vec()) |
| 2089 | } |
| 2090 | }; |
| 2091 | |
| 2092 | // Close any existing coproc |
| 2093 | context.clear_coproc(); |
| 2094 | |
| 2095 | // Create two pipes: one for reading from coproc stdout, one for writing to coproc stdin |
| 2096 | let (read_fd_parent, write_fd_child) = match pipe() { |
| 2097 | Ok((r, w)) => (r.into_raw_fd(), w.into_raw_fd()), |
| 2098 | Err(e) => { |
| 2099 | eprintln!("coproc: failed to create pipe: {}", e); |
| 2100 | return error_result(); |
| 2101 | } |
| 2102 | }; |
| 2103 | |
| 2104 | let (read_fd_child, write_fd_parent) = match pipe() { |
| 2105 | Ok((r, w)) => (r.into_raw_fd(), w.into_raw_fd()), |
| 2106 | Err(e) => { |
| 2107 | eprintln!("coproc: failed to create pipe: {}", e); |
| 2108 | // close() is already unsafe, no need for unsafe block |
| 2109 | close(read_fd_parent).ok(); |
| 2110 | close(write_fd_child).ok(); |
| 2111 | return error_result(); |
| 2112 | } |
| 2113 | }; |
| 2114 | |
| 2115 | // Fork the child process |
| 2116 | match unsafe { fork() } { |
| 2117 | Ok(ForkResult::Child) => { |
| 2118 | // Child process: set up pipes and exec command |
| 2119 | |
| 2120 | // Close parent ends of pipes |
| 2121 | close(read_fd_parent).ok(); |
| 2122 | close(write_fd_parent).ok(); |
| 2123 | |
| 2124 | // Redirect stdin from read_fd_child |
| 2125 | if let Err(e) = dup2(read_fd_child, 0) { |
| 2126 | eprintln!("coproc: failed to dup2 stdin: {}", e); |
| 2127 | std::process::exit(1); |
| 2128 | } |
| 2129 | close(read_fd_child).ok(); |
| 2130 | |
| 2131 | // Redirect stdout to write_fd_child |
| 2132 | if let Err(e) = dup2(write_fd_child, 1) { |
| 2133 | eprintln!("coproc: failed to dup2 stdout: {}", e); |
| 2134 | std::process::exit(1); |
| 2135 | } |
| 2136 | close(write_fd_child).ok(); |
| 2137 | |
| 2138 | // Find and execute the command |
| 2139 | let command_name = &command_args[0]; |
| 2140 | let program_path = match find_in_path(command_name) { |
| 2141 | Some(path) => path, |
| 2142 | None => { |
| 2143 | eprintln!("coproc: {}: command not found", command_name); |
| 2144 | std::process::exit(127); |
| 2145 | } |
| 2146 | }; |
| 2147 | |
| 2148 | // Build argument list for execvp |
| 2149 | let program_cstring = match CString::new(program_path.as_os_str().as_bytes()) { |
| 2150 | Ok(s) => s, |
| 2151 | Err(_) => std::process::exit(1), |
| 2152 | }; |
| 2153 | |
| 2154 | let arg_cstrings: Vec<CString> = command_args.iter() |
| 2155 | .filter_map(|arg| CString::new(arg.as_bytes()).ok()) |
| 2156 | .collect(); |
| 2157 | |
| 2158 | let arg_ptrs: Vec<*const i8> = std::iter::once(program_cstring.as_ptr()) |
| 2159 | .chain(arg_cstrings.iter().map(|s| s.as_ptr())) |
| 2160 | .chain(std::iter::once(std::ptr::null())) |
| 2161 | .collect(); |
| 2162 | |
| 2163 | // Exec the command |
| 2164 | unsafe { |
| 2165 | nix::libc::execvp(program_cstring.as_ptr(), arg_ptrs.as_ptr()); |
| 2166 | } |
| 2167 | |
| 2168 | // If execvp returns, it failed |
| 2169 | eprintln!("coproc: failed to exec {}", command_name); |
| 2170 | std::process::exit(127); |
| 2171 | } |
| 2172 | Ok(ForkResult::Parent { child }) => { |
| 2173 | // Parent process: close child ends of pipes and set up coproc state |
| 2174 | |
| 2175 | // Close child ends |
| 2176 | close(read_fd_child).ok(); |
| 2177 | close(write_fd_child).ok(); |
| 2178 | |
| 2179 | let pid = child; |
| 2180 | let pgid = pid; // Use PID as PGID (process becomes group leader) |
| 2181 | |
| 2182 | // Put child in its own process group |
| 2183 | if let Err(e) = setpgid(pid, pgid) { |
| 2184 | eprintln!("coproc: warning: failed to set process group: {}", e); |
| 2185 | } |
| 2186 | |
| 2187 | // Build command string for display |
| 2188 | let command_string = command_args.join(" "); |
| 2189 | |
| 2190 | // Store coproc state |
| 2191 | context.coproc = Some(rush_expand::CoprocState { |
| 2192 | name: name.clone(), |
| 2193 | read_fd: read_fd_parent, |
| 2194 | write_fd: write_fd_parent, |
| 2195 | pid, |
| 2196 | pgid, |
| 2197 | }); |
| 2198 | |
| 2199 | // Set array variables: NAME[0] = read_fd, NAME[1] = write_fd |
| 2200 | context.set_coproc_vars(&name, read_fd_parent, write_fd_parent); |
| 2201 | |
| 2202 | // Add to job list |
| 2203 | let job_id = context.job_list.add_job( |
| 2204 | pgid, |
| 2205 | command_string.clone(), |
| 2206 | vec![pid], |
| 2207 | false, // not foreground |
| 2208 | ); |
| 2209 | |
| 2210 | // Print job notification |
| 2211 | println!("[{}] {}", job_id, pid); |
| 2212 | |
| 2213 | success_result() |
| 2214 | } |
| 2215 | Err(e) => { |
| 2216 | eprintln!("coproc: fork failed: {}", e); |
| 2217 | // Clean up pipes |
| 2218 | close(read_fd_parent).ok(); |
| 2219 | close(write_fd_parent).ok(); |
| 2220 | close(read_fd_child).ok(); |
| 2221 | close(write_fd_child).ok(); |
| 2222 | error_result() |
| 2223 | } |
| 2224 | } |
| 2225 | } |
| 2226 | |
| 2227 | /// source/. builtin - Execute commands from a file in the current shell context |
| 2228 | fn builtin_source(args: &[String], context: &mut rush_expand::Context) -> Result<ExecutionResult, String> { |
| 2229 | if args.is_empty() { |
| 2230 | return Err("filename required".to_string()); |
| 2231 | } |
| 2232 | |
| 2233 | let filename = &args[0]; |
| 2234 | |
| 2235 | // Read the file |
| 2236 | let content = std::fs::read_to_string(filename) |
| 2237 | .map_err(|e| format!("{}: {}", filename, e))?; |
| 2238 | |
| 2239 | // Parse the entire content as a single unit to handle multiline constructs |
| 2240 | use rush_parser::parse_line; |
| 2241 | |
| 2242 | match parse_line(&content) { |
| 2243 | Ok(statement) => { |
| 2244 | execute_statement(&statement, context) |
| 2245 | .map_err(|e| format!("{}: {}", filename, e)) |
| 2246 | } |
| 2247 | Err(e) => { |
| 2248 | Err(format!("{}: parse error: {}", filename, e)) |
| 2249 | } |
| 2250 | } |
| 2251 | } |
| 2252 | |
| 2253 | /// eval builtin - Evaluate arguments as a shell command |
| 2254 | fn builtin_eval(args: &[String], context: &mut rush_expand::Context) -> Result<ExecutionResult, String> { |
| 2255 | if args.is_empty() { |
| 2256 | return Ok(success_result()); |
| 2257 | } |
| 2258 | |
| 2259 | // Join all arguments into a single command string |
| 2260 | let command = args.join(" "); |
| 2261 | |
| 2262 | // Parse and execute |
| 2263 | use rush_parser::parse_line; |
| 2264 | |
| 2265 | match parse_line(&command) { |
| 2266 | Ok(statement) => { |
| 2267 | execute_statement(&statement, context) |
| 2268 | .map_err(|e| format!("{}", e)) |
| 2269 | } |
| 2270 | Err(e) => { |
| 2271 | Err(format!("parse error: {}", e)) |
| 2272 | } |
| 2273 | } |
| 2274 | } |
| 2275 | |
| 2276 | /// cd builtin - change directory |
| 2277 | /// Supports: cd, cd -, cd ~, cd ~user, cd /path |
| 2278 | fn builtin_cd(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 2279 | let home = env::var("HOME").unwrap_or_else(|_| "/".to_string()); |
| 2280 | |
| 2281 | // Get target directory |
| 2282 | let target = if args.is_empty() { |
| 2283 | // cd with no args goes to $HOME |
| 2284 | home.clone() |
| 2285 | } else { |
| 2286 | let arg = &args[0]; |
| 2287 | if arg == "-" { |
| 2288 | // cd - goes to $OLDPWD |
| 2289 | match context.get_var("OLDPWD") { |
| 2290 | Some(oldpwd) => { |
| 2291 | println!("{}", oldpwd); |
| 2292 | oldpwd.to_string() |
| 2293 | } |
| 2294 | None => { |
| 2295 | eprintln!("cd: OLDPWD not set"); |
| 2296 | return error_result(); |
| 2297 | } |
| 2298 | } |
| 2299 | } else if arg == "~" || arg.is_empty() { |
| 2300 | // cd ~ goes to $HOME |
| 2301 | home.clone() |
| 2302 | } else if arg.starts_with("~/") { |
| 2303 | // cd ~/path goes to $HOME/path |
| 2304 | format!("{}/{}", home, &arg[2..]) |
| 2305 | } else if arg.starts_with('~') { |
| 2306 | // cd ~user - lookup user's home directory |
| 2307 | let (username, suffix) = if let Some(slash_pos) = arg.find('/') { |
| 2308 | (&arg[1..slash_pos], &arg[slash_pos..]) |
| 2309 | } else { |
| 2310 | (&arg[1..], "") |
| 2311 | }; |
| 2312 | |
| 2313 | #[cfg(unix)] |
| 2314 | { |
| 2315 | use nix::unistd::User; |
| 2316 | match User::from_name(username) { |
| 2317 | Ok(Some(user)) => { |
| 2318 | let home = user.dir.to_string_lossy(); |
| 2319 | if suffix.is_empty() { |
| 2320 | home.to_string() |
| 2321 | } else { |
| 2322 | format!("{}{}", home, suffix) |
| 2323 | } |
| 2324 | } |
| 2325 | Ok(None) => { |
| 2326 | eprintln!("cd: ~{}: No such user", username); |
| 2327 | return error_result(); |
| 2328 | } |
| 2329 | Err(e) => { |
| 2330 | eprintln!("cd: ~{}: {}", username, e); |
| 2331 | return error_result(); |
| 2332 | } |
| 2333 | } |
| 2334 | } |
| 2335 | #[cfg(not(unix))] |
| 2336 | { |
| 2337 | // On non-Unix platforms, just treat as literal path |
| 2338 | arg.clone() |
| 2339 | } |
| 2340 | } else { |
| 2341 | arg.clone() |
| 2342 | } |
| 2343 | }; |
| 2344 | |
| 2345 | // Save current directory as OLDPWD before changing |
| 2346 | if let Ok(cwd) = env::current_dir() { |
| 2347 | let _ = context.set_var("OLDPWD", cwd.to_string_lossy().to_string()); |
| 2348 | } |
| 2349 | |
| 2350 | // Change directory |
| 2351 | match env::set_current_dir(&target) { |
| 2352 | Ok(_) => { |
| 2353 | // Update PWD |
| 2354 | if let Ok(new_cwd) = env::current_dir() { |
| 2355 | let _ = context.set_var("PWD", new_cwd.to_string_lossy().to_string()); |
| 2356 | } |
| 2357 | success_result() |
| 2358 | } |
| 2359 | Err(e) => { |
| 2360 | eprintln!("cd: {}: {}", target, e); |
| 2361 | error_result() |
| 2362 | } |
| 2363 | } |
| 2364 | } |
| 2365 | |
| 2366 | /// pushd builtin - push directory onto stack and cd to it |
| 2367 | fn builtin_pushd(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 2368 | // Get current directory first |
| 2369 | let cwd = match env::current_dir() { |
| 2370 | Ok(p) => p.to_string_lossy().to_string(), |
| 2371 | Err(e) => { |
| 2372 | eprintln!("pushd: error getting current directory: {}", e); |
| 2373 | return error_result(); |
| 2374 | } |
| 2375 | }; |
| 2376 | |
| 2377 | if args.is_empty() { |
| 2378 | // pushd with no args swaps top two directories |
| 2379 | if context.dir_stack.is_empty() { |
| 2380 | eprintln!("pushd: no other directory"); |
| 2381 | return error_result(); |
| 2382 | } |
| 2383 | |
| 2384 | let top = context.dir_stack.remove(0); |
| 2385 | context.dir_stack.insert(0, cwd.clone()); |
| 2386 | |
| 2387 | // Change to the popped directory |
| 2388 | if let Err(e) = env::set_current_dir(&top) { |
| 2389 | // Restore stack on failure |
| 2390 | context.dir_stack.remove(0); |
| 2391 | context.dir_stack.insert(0, top); |
| 2392 | eprintln!("pushd: {}", e); |
| 2393 | return error_result(); |
| 2394 | } |
| 2395 | |
| 2396 | // Update OLDPWD and PWD |
| 2397 | let _ = context.set_var("OLDPWD", cwd); |
| 2398 | let _ = context.set_var("PWD", top.clone()); |
| 2399 | |
| 2400 | // Print the stack |
| 2401 | print_dir_stack(context); |
| 2402 | success_result() |
| 2403 | } else { |
| 2404 | let target = &args[0]; |
| 2405 | |
| 2406 | // Expand ~ in target |
| 2407 | let expanded = if target == "~" { |
| 2408 | env::var("HOME").unwrap_or_else(|_| "/".to_string()) |
| 2409 | } else if target.starts_with("~/") { |
| 2410 | let home = env::var("HOME").unwrap_or_else(|_| "/".to_string()); |
| 2411 | format!("{}/{}", home, &target[2..]) |
| 2412 | } else { |
| 2413 | target.clone() |
| 2414 | }; |
| 2415 | |
| 2416 | // Push current directory onto stack |
| 2417 | context.dir_stack.insert(0, cwd.clone()); |
| 2418 | |
| 2419 | // Change to new directory |
| 2420 | if let Err(e) = env::set_current_dir(&expanded) { |
| 2421 | // Remove the directory we just pushed on failure |
| 2422 | context.dir_stack.remove(0); |
| 2423 | eprintln!("pushd: {}: {}", expanded, e); |
| 2424 | return error_result(); |
| 2425 | } |
| 2426 | |
| 2427 | // Update OLDPWD and PWD |
| 2428 | let _ = context.set_var("OLDPWD", cwd); |
| 2429 | if let Ok(new_cwd) = env::current_dir() { |
| 2430 | let _ = context.set_var("PWD", new_cwd.to_string_lossy().to_string()); |
| 2431 | } |
| 2432 | |
| 2433 | // Print the stack |
| 2434 | print_dir_stack(context); |
| 2435 | success_result() |
| 2436 | } |
| 2437 | } |
| 2438 | |
| 2439 | /// popd builtin - pop directory from stack and cd to it |
| 2440 | fn builtin_popd(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 2441 | // Check for -n flag (don't change directory, just manipulate stack) |
| 2442 | let no_cd = args.iter().any(|a| a == "-n"); |
| 2443 | |
| 2444 | if context.dir_stack.is_empty() { |
| 2445 | eprintln!("popd: directory stack empty"); |
| 2446 | return error_result(); |
| 2447 | } |
| 2448 | |
| 2449 | let dir = context.dir_stack.remove(0); |
| 2450 | |
| 2451 | if !no_cd { |
| 2452 | // Save current directory as OLDPWD |
| 2453 | if let Ok(cwd) = env::current_dir() { |
| 2454 | let _ = context.set_var("OLDPWD", cwd.to_string_lossy().to_string()); |
| 2455 | } |
| 2456 | |
| 2457 | // Change to the popped directory |
| 2458 | if let Err(e) = env::set_current_dir(&dir) { |
| 2459 | // Re-add directory to stack on failure |
| 2460 | context.dir_stack.insert(0, dir); |
| 2461 | eprintln!("popd: {}", e); |
| 2462 | return error_result(); |
| 2463 | } |
| 2464 | |
| 2465 | // Update PWD |
| 2466 | if let Ok(new_cwd) = env::current_dir() { |
| 2467 | let _ = context.set_var("PWD", new_cwd.to_string_lossy().to_string()); |
| 2468 | } |
| 2469 | } |
| 2470 | |
| 2471 | // Print the stack |
| 2472 | print_dir_stack(context); |
| 2473 | success_result() |
| 2474 | } |
| 2475 | |
| 2476 | /// dirs builtin - display directory stack |
| 2477 | fn builtin_dirs(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 2478 | let clear = args.iter().any(|a| a == "-c"); |
| 2479 | let print_index = args.iter().any(|a| a == "-v"); |
| 2480 | let one_per_line = args.iter().any(|a| a == "-p"); |
| 2481 | |
| 2482 | if clear { |
| 2483 | context.dir_stack.clear(); |
| 2484 | return success_result(); |
| 2485 | } |
| 2486 | |
| 2487 | // Get current directory |
| 2488 | let cwd = env::current_dir() |
| 2489 | .map(|p| p.to_string_lossy().to_string()) |
| 2490 | .unwrap_or_else(|_| ".".to_string()); |
| 2491 | |
| 2492 | if print_index { |
| 2493 | // Print with indices |
| 2494 | println!(" 0 {}", cwd); |
| 2495 | for (i, dir) in context.dir_stack.iter().enumerate() { |
| 2496 | println!(" {} {}", i + 1, dir); |
| 2497 | } |
| 2498 | } else if one_per_line { |
| 2499 | // One directory per line |
| 2500 | println!("{}", cwd); |
| 2501 | for dir in &context.dir_stack { |
| 2502 | println!("{}", dir); |
| 2503 | } |
| 2504 | } else { |
| 2505 | // Default: space-separated on one line |
| 2506 | print_dir_stack(context); |
| 2507 | } |
| 2508 | |
| 2509 | success_result() |
| 2510 | } |
| 2511 | |
| 2512 | /// Helper to print the directory stack |
| 2513 | fn print_dir_stack(context: &rush_expand::Context) { |
| 2514 | let cwd = env::current_dir() |
| 2515 | .map(|p| p.to_string_lossy().to_string()) |
| 2516 | .unwrap_or_else(|_| ".".to_string()); |
| 2517 | |
| 2518 | let mut parts = vec![cwd]; |
| 2519 | parts.extend(context.dir_stack.iter().cloned()); |
| 2520 | println!("{}", parts.join(" ")); |
| 2521 | } |
| 2522 | |
| 2523 | /// echo builtin - display a line of text |
| 2524 | /// |
| 2525 | /// Uses direct writes to stdout for reliable capture in command substitution |
| 2526 | fn builtin_echo(args: &[String]) -> ExecutionResult { |
| 2527 | use std::io::Write; |
| 2528 | |
| 2529 | let mut newline = true; |
| 2530 | let mut interpret_escapes = false; |
| 2531 | let mut args_iter = args.iter().peekable(); |
| 2532 | |
| 2533 | // Parse options (bash-style: only at the start, stop at first non-option) |
| 2534 | while let Some(arg) = args_iter.peek() { |
| 2535 | if arg.starts_with('-') && arg.len() > 1 && arg.chars().skip(1).all(|c| matches!(c, 'n' | 'e' | 'E')) { |
| 2536 | let arg = args_iter.next().unwrap(); |
| 2537 | for c in arg.chars().skip(1) { |
| 2538 | match c { |
| 2539 | 'n' => newline = false, |
| 2540 | 'e' => interpret_escapes = true, |
| 2541 | 'E' => interpret_escapes = false, |
| 2542 | _ => {} |
| 2543 | } |
| 2544 | } |
| 2545 | } else { |
| 2546 | break; |
| 2547 | } |
| 2548 | } |
| 2549 | |
| 2550 | let remaining: Vec<&String> = args_iter.collect(); |
| 2551 | let text = remaining.iter().map(|s| s.as_str()).collect::<Vec<_>>().join(" "); |
| 2552 | |
| 2553 | // Get stdout handle and lock it for the duration of the write |
| 2554 | let stdout = std::io::stdout(); |
| 2555 | let mut handle = stdout.lock(); |
| 2556 | |
| 2557 | if interpret_escapes { |
| 2558 | let mut output = String::new(); |
| 2559 | let mut chars = text.chars().peekable(); |
| 2560 | while let Some(c) = chars.next() { |
| 2561 | if c == '\\' { |
| 2562 | match chars.next() { |
| 2563 | Some('n') => output.push('\n'), |
| 2564 | Some('t') => output.push('\t'), |
| 2565 | Some('r') => output.push('\r'), |
| 2566 | Some('\\') => output.push('\\'), |
| 2567 | Some('a') => output.push('\x07'), |
| 2568 | Some('b') => output.push('\x08'), |
| 2569 | Some('f') => output.push('\x0C'), |
| 2570 | Some('v') => output.push('\x0B'), |
| 2571 | Some('0') => { |
| 2572 | // Octal escape |
| 2573 | let mut oct = String::new(); |
| 2574 | for _ in 0..3 { |
| 2575 | if let Some(&ch) = chars.peek() { |
| 2576 | if ch >= '0' && ch <= '7' { |
| 2577 | oct.push(chars.next().unwrap()); |
| 2578 | } else { |
| 2579 | break; |
| 2580 | } |
| 2581 | } |
| 2582 | } |
| 2583 | let val = u8::from_str_radix(&oct, 8).unwrap_or(0); |
| 2584 | output.push(val as char); |
| 2585 | } |
| 2586 | Some('x') => { |
| 2587 | // Hex escape |
| 2588 | let mut hex = String::new(); |
| 2589 | for _ in 0..2 { |
| 2590 | if let Some(&ch) = chars.peek() { |
| 2591 | if ch.is_ascii_hexdigit() { |
| 2592 | hex.push(chars.next().unwrap()); |
| 2593 | } else { |
| 2594 | break; |
| 2595 | } |
| 2596 | } |
| 2597 | } |
| 2598 | if !hex.is_empty() { |
| 2599 | let val = u8::from_str_radix(&hex, 16).unwrap_or(0); |
| 2600 | output.push(val as char); |
| 2601 | } else { |
| 2602 | output.push_str("\\x"); |
| 2603 | } |
| 2604 | } |
| 2605 | Some('c') => { |
| 2606 | // Stop output (no newline either) |
| 2607 | let _ = handle.write_all(output.as_bytes()); |
| 2608 | let _ = handle.flush(); |
| 2609 | return success_result(); |
| 2610 | } |
| 2611 | Some(other) => { |
| 2612 | output.push('\\'); |
| 2613 | output.push(other); |
| 2614 | } |
| 2615 | None => output.push('\\'), |
| 2616 | } |
| 2617 | } else { |
| 2618 | output.push(c); |
| 2619 | } |
| 2620 | } |
| 2621 | let _ = handle.write_all(output.as_bytes()); |
| 2622 | } else { |
| 2623 | let _ = handle.write_all(text.as_bytes()); |
| 2624 | } |
| 2625 | |
| 2626 | if newline { |
| 2627 | let _ = handle.write_all(b"\n"); |
| 2628 | } |
| 2629 | |
| 2630 | let _ = handle.flush(); |
| 2631 | success_result() |
| 2632 | } |
| 2633 | |
| 2634 | /// printf builtin - formatted output |
| 2635 | fn builtin_printf(args: &[String], _context: &mut rush_expand::Context) -> ExecutionResult { |
| 2636 | if args.is_empty() { |
| 2637 | eprintln!("printf: usage: printf format [arguments]"); |
| 2638 | return error_result(); |
| 2639 | } |
| 2640 | |
| 2641 | let format = &args[0]; |
| 2642 | let arguments = &args[1..]; |
| 2643 | let mut arg_index = 0; |
| 2644 | |
| 2645 | let mut output = String::new(); |
| 2646 | let mut chars = format.chars().peekable(); |
| 2647 | |
| 2648 | while let Some(c) = chars.next() { |
| 2649 | if c == '\\' { |
| 2650 | // Handle escape sequences |
| 2651 | match chars.next() { |
| 2652 | Some('n') => output.push('\n'), |
| 2653 | Some('t') => output.push('\t'), |
| 2654 | Some('r') => output.push('\r'), |
| 2655 | Some('\\') => output.push('\\'), |
| 2656 | Some('"') => output.push('"'), |
| 2657 | Some('\'') => output.push('\''), |
| 2658 | Some('a') => output.push('\x07'), // bell |
| 2659 | Some('b') => output.push('\x08'), // backspace |
| 2660 | Some('f') => output.push('\x0C'), // form feed |
| 2661 | Some('v') => output.push('\x0B'), // vertical tab |
| 2662 | Some('0') => { |
| 2663 | // Octal escape \0nnn |
| 2664 | let mut oct = String::new(); |
| 2665 | for _ in 0..3 { |
| 2666 | if let Some(&ch) = chars.peek() { |
| 2667 | if ch >= '0' && ch <= '7' { |
| 2668 | oct.push(chars.next().unwrap()); |
| 2669 | } else { |
| 2670 | break; |
| 2671 | } |
| 2672 | } |
| 2673 | } |
| 2674 | if oct.is_empty() { |
| 2675 | output.push('\0'); |
| 2676 | } else { |
| 2677 | let val = u8::from_str_radix(&oct, 8).unwrap_or(0); |
| 2678 | output.push(val as char); |
| 2679 | } |
| 2680 | } |
| 2681 | Some('x') => { |
| 2682 | // Hex escape \xHH |
| 2683 | let mut hex = String::new(); |
| 2684 | for _ in 0..2 { |
| 2685 | if let Some(&ch) = chars.peek() { |
| 2686 | if ch.is_ascii_hexdigit() { |
| 2687 | hex.push(chars.next().unwrap()); |
| 2688 | } else { |
| 2689 | break; |
| 2690 | } |
| 2691 | } |
| 2692 | } |
| 2693 | if !hex.is_empty() { |
| 2694 | let val = u8::from_str_radix(&hex, 16).unwrap_or(0); |
| 2695 | output.push(val as char); |
| 2696 | } |
| 2697 | } |
| 2698 | Some(other) => { |
| 2699 | output.push('\\'); |
| 2700 | output.push(other); |
| 2701 | } |
| 2702 | None => output.push('\\'), |
| 2703 | } |
| 2704 | } else if c == '%' { |
| 2705 | // Handle format specifiers |
| 2706 | match chars.peek() { |
| 2707 | Some('%') => { |
| 2708 | chars.next(); |
| 2709 | output.push('%'); |
| 2710 | } |
| 2711 | _ => { |
| 2712 | // Parse format specifier: %[flags][width][.precision]specifier |
| 2713 | let mut spec = String::from('%'); |
| 2714 | |
| 2715 | // Flags |
| 2716 | while let Some(&ch) = chars.peek() { |
| 2717 | if ch == '-' || ch == '+' || ch == ' ' || ch == '#' || ch == '0' { |
| 2718 | spec.push(chars.next().unwrap()); |
| 2719 | } else { |
| 2720 | break; |
| 2721 | } |
| 2722 | } |
| 2723 | |
| 2724 | // Width |
| 2725 | while let Some(&ch) = chars.peek() { |
| 2726 | if ch.is_ascii_digit() { |
| 2727 | spec.push(chars.next().unwrap()); |
| 2728 | } else { |
| 2729 | break; |
| 2730 | } |
| 2731 | } |
| 2732 | |
| 2733 | // Precision |
| 2734 | if chars.peek() == Some(&'.') { |
| 2735 | spec.push(chars.next().unwrap()); |
| 2736 | while let Some(&ch) = chars.peek() { |
| 2737 | if ch.is_ascii_digit() { |
| 2738 | spec.push(chars.next().unwrap()); |
| 2739 | } else { |
| 2740 | break; |
| 2741 | } |
| 2742 | } |
| 2743 | } |
| 2744 | |
| 2745 | // Specifier |
| 2746 | let specifier = chars.next().unwrap_or('s'); |
| 2747 | let arg = arguments.get(arg_index).map(|s| s.as_str()).unwrap_or(""); |
| 2748 | arg_index += 1; |
| 2749 | |
| 2750 | match specifier { |
| 2751 | 's' => { |
| 2752 | // String - handle width/precision |
| 2753 | output.push_str(arg); |
| 2754 | } |
| 2755 | 'd' | 'i' => { |
| 2756 | let val: i64 = arg.parse().unwrap_or(0); |
| 2757 | output.push_str(&val.to_string()); |
| 2758 | } |
| 2759 | 'u' => { |
| 2760 | let val: u64 = arg.parse().unwrap_or(0); |
| 2761 | output.push_str(&val.to_string()); |
| 2762 | } |
| 2763 | 'o' => { |
| 2764 | let val: u64 = arg.parse().unwrap_or(0); |
| 2765 | output.push_str(&format!("{:o}", val)); |
| 2766 | } |
| 2767 | 'x' => { |
| 2768 | let val: u64 = arg.parse().unwrap_or(0); |
| 2769 | output.push_str(&format!("{:x}", val)); |
| 2770 | } |
| 2771 | 'X' => { |
| 2772 | let val: u64 = arg.parse().unwrap_or(0); |
| 2773 | output.push_str(&format!("{:X}", val)); |
| 2774 | } |
| 2775 | 'f' | 'F' | 'e' | 'E' | 'g' | 'G' => { |
| 2776 | let val: f64 = arg.parse().unwrap_or(0.0); |
| 2777 | output.push_str(&format!("{}", val)); |
| 2778 | } |
| 2779 | 'c' => { |
| 2780 | if let Some(ch) = arg.chars().next() { |
| 2781 | output.push(ch); |
| 2782 | } |
| 2783 | } |
| 2784 | 'b' => { |
| 2785 | // %b - interpret backslash escapes in the argument |
| 2786 | let mut arg_chars = arg.chars().peekable(); |
| 2787 | while let Some(ac) = arg_chars.next() { |
| 2788 | if ac == '\\' { |
| 2789 | match arg_chars.next() { |
| 2790 | Some('n') => output.push('\n'), |
| 2791 | Some('t') => output.push('\t'), |
| 2792 | Some('r') => output.push('\r'), |
| 2793 | Some('\\') => output.push('\\'), |
| 2794 | Some(other) => { |
| 2795 | output.push('\\'); |
| 2796 | output.push(other); |
| 2797 | } |
| 2798 | None => output.push('\\'), |
| 2799 | } |
| 2800 | } else { |
| 2801 | output.push(ac); |
| 2802 | } |
| 2803 | } |
| 2804 | } |
| 2805 | 'q' => { |
| 2806 | // %q - quote the argument for shell reuse |
| 2807 | output.push('\''); |
| 2808 | for ch in arg.chars() { |
| 2809 | if ch == '\'' { |
| 2810 | output.push_str("'\\''"); |
| 2811 | } else { |
| 2812 | output.push(ch); |
| 2813 | } |
| 2814 | } |
| 2815 | output.push('\''); |
| 2816 | } |
| 2817 | _ => { |
| 2818 | // Unknown specifier, output as-is |
| 2819 | output.push('%'); |
| 2820 | output.push(specifier); |
| 2821 | } |
| 2822 | } |
| 2823 | } |
| 2824 | } |
| 2825 | } else { |
| 2826 | output.push(c); |
| 2827 | } |
| 2828 | } |
| 2829 | |
| 2830 | print!("{}", output); |
| 2831 | success_result() |
| 2832 | } |
| 2833 | |
| 2834 | /// mapfile/readarray builtin - read lines into an array |
| 2835 | fn builtin_mapfile(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 2836 | use std::io::{self, BufRead, Read}; |
| 2837 | |
| 2838 | let mut delimiter = '\n'; |
| 2839 | let mut count: Option<usize> = None; |
| 2840 | let mut origin = 0usize; |
| 2841 | let mut skip = 0usize; |
| 2842 | let mut remove_delimiter = false; |
| 2843 | let mut array_name = String::from("MAPFILE"); |
| 2844 | |
| 2845 | // Parse options |
| 2846 | let mut i = 0; |
| 2847 | while i < args.len() { |
| 2848 | match args[i].as_str() { |
| 2849 | "-d" => { |
| 2850 | i += 1; |
| 2851 | if i < args.len() { |
| 2852 | delimiter = args[i].chars().next().unwrap_or('\n'); |
| 2853 | } |
| 2854 | } |
| 2855 | "-n" => { |
| 2856 | i += 1; |
| 2857 | if i < args.len() { |
| 2858 | count = args[i].parse().ok(); |
| 2859 | } |
| 2860 | } |
| 2861 | "-O" => { |
| 2862 | i += 1; |
| 2863 | if i < args.len() { |
| 2864 | origin = args[i].parse().unwrap_or(0); |
| 2865 | } |
| 2866 | } |
| 2867 | "-s" => { |
| 2868 | i += 1; |
| 2869 | if i < args.len() { |
| 2870 | skip = args[i].parse().unwrap_or(0); |
| 2871 | } |
| 2872 | } |
| 2873 | "-t" => { |
| 2874 | remove_delimiter = true; |
| 2875 | } |
| 2876 | arg if !arg.starts_with('-') => { |
| 2877 | array_name = arg.to_string(); |
| 2878 | } |
| 2879 | _ => { |
| 2880 | // Unknown option, skip |
| 2881 | } |
| 2882 | } |
| 2883 | i += 1; |
| 2884 | } |
| 2885 | |
| 2886 | let stdin = io::stdin(); |
| 2887 | let reader = stdin.lock(); |
| 2888 | let mut lines: Vec<String> = Vec::new(); |
| 2889 | let mut lines_read = 0usize; |
| 2890 | |
| 2891 | if delimiter == '\n' { |
| 2892 | for line_result in reader.lines() { |
| 2893 | match line_result { |
| 2894 | Ok(line) => { |
| 2895 | if lines_read < skip { |
| 2896 | lines_read += 1; |
| 2897 | continue; |
| 2898 | } |
| 2899 | |
| 2900 | if let Some(max) = count { |
| 2901 | if lines.len() >= max { |
| 2902 | break; |
| 2903 | } |
| 2904 | } |
| 2905 | |
| 2906 | let content = if remove_delimiter { |
| 2907 | line |
| 2908 | } else { |
| 2909 | format!("{}\n", line) |
| 2910 | }; |
| 2911 | lines.push(content); |
| 2912 | lines_read += 1; |
| 2913 | } |
| 2914 | Err(_) => break, |
| 2915 | } |
| 2916 | } |
| 2917 | } else { |
| 2918 | // Custom delimiter |
| 2919 | let mut buffer = String::new(); |
| 2920 | for byte_result in reader.bytes() { |
| 2921 | match byte_result { |
| 2922 | Ok(byte) => { |
| 2923 | let ch = byte as char; |
| 2924 | if ch == delimiter { |
| 2925 | if lines_read < skip { |
| 2926 | buffer.clear(); |
| 2927 | lines_read += 1; |
| 2928 | continue; |
| 2929 | } |
| 2930 | |
| 2931 | if let Some(max) = count { |
| 2932 | if lines.len() >= max { |
| 2933 | break; |
| 2934 | } |
| 2935 | } |
| 2936 | |
| 2937 | let content = if remove_delimiter { |
| 2938 | buffer.clone() |
| 2939 | } else { |
| 2940 | format!("{}{}", buffer, delimiter) |
| 2941 | }; |
| 2942 | lines.push(content); |
| 2943 | buffer.clear(); |
| 2944 | lines_read += 1; |
| 2945 | } else { |
| 2946 | buffer.push(ch); |
| 2947 | } |
| 2948 | } |
| 2949 | Err(_) => break, |
| 2950 | } |
| 2951 | } |
| 2952 | // Handle remaining content |
| 2953 | if !buffer.is_empty() && (count.is_none() || lines.len() < count.unwrap()) { |
| 2954 | if lines_read >= skip { |
| 2955 | lines.push(buffer); |
| 2956 | } |
| 2957 | } |
| 2958 | } |
| 2959 | |
| 2960 | // Build array starting at origin index |
| 2961 | let mut array_values: Vec<String> = Vec::new(); |
| 2962 | |
| 2963 | // Preserve existing elements if origin > 0 |
| 2964 | if origin > 0 { |
| 2965 | if let Some(rush_expand::context::ArrayType::Indexed(existing)) = context.arrays.get(&array_name) { |
| 2966 | for i in 0..origin { |
| 2967 | array_values.push(existing.get(i).cloned().unwrap_or_default()); |
| 2968 | } |
| 2969 | } else { |
| 2970 | for _ in 0..origin { |
| 2971 | array_values.push(String::new()); |
| 2972 | } |
| 2973 | } |
| 2974 | } |
| 2975 | |
| 2976 | array_values.extend(lines); |
| 2977 | |
| 2978 | context.arrays.insert(array_name, rush_expand::context::ArrayType::Indexed(array_values)); |
| 2979 | |
| 2980 | success_result() |
| 2981 | } |
| 2982 | |
| 2983 | /// disown builtin - remove jobs from job table |
| 2984 | #[cfg(unix)] |
| 2985 | fn builtin_disown(args: &[String], context: &mut rush_expand::Context) -> ExecutionResult { |
| 2986 | let mut _mark_no_sighup = false; // TODO: implement -h to prevent SIGHUP |
| 2987 | let mut all_jobs = false; |
| 2988 | let mut running_only = false; |
| 2989 | let mut job_specs: Vec<String> = Vec::new(); |
| 2990 | |
| 2991 | // Parse options |
| 2992 | for arg in args { |
| 2993 | match arg.as_str() { |
| 2994 | "-h" => _mark_no_sighup = true, |
| 2995 | "-a" => all_jobs = true, |
| 2996 | "-r" => running_only = true, |
| 2997 | _ if arg.starts_with('%') || arg.parse::<u32>().is_ok() => { |
| 2998 | job_specs.push(arg.clone()); |
| 2999 | } |
| 3000 | _ => { |
| 3001 | eprintln!("disown: {}: invalid option", arg); |
| 3002 | return error_result(); |
| 3003 | } |
| 3004 | } |
| 3005 | } |
| 3006 | |
| 3007 | // If -a flag, disown all jobs |
| 3008 | if all_jobs { |
| 3009 | context.job_list.disown_all(running_only); |
| 3010 | return success_result(); |
| 3011 | } |
| 3012 | |
| 3013 | // If no job specs and no -a, disown current job |
| 3014 | if job_specs.is_empty() { |
| 3015 | if let Some(current_job) = context.job_list.current_job_id() { |
| 3016 | context.job_list.disown_job(current_job); |
| 3017 | } |
| 3018 | return success_result(); |
| 3019 | } |
| 3020 | |
| 3021 | // Disown specific jobs |
| 3022 | for spec in job_specs { |
| 3023 | let job_id = if spec.starts_with('%') { |
| 3024 | // Job ID format: %n or %+, %-, etc. |
| 3025 | let id_str = &spec[1..]; |
| 3026 | if id_str == "+" || id_str == "%" { |
| 3027 | context.job_list.current_job_id() |
| 3028 | } else if id_str == "-" { |
| 3029 | context.job_list.previous_job() |
| 3030 | } else { |
| 3031 | id_str.parse::<u32>().ok() |
| 3032 | } |
| 3033 | } else { |
| 3034 | spec.parse::<u32>().ok() |
| 3035 | }; |
| 3036 | |
| 3037 | if let Some(id) = job_id { |
| 3038 | context.job_list.disown_job(id); |
| 3039 | } else { |
| 3040 | eprintln!("disown: {}: no such job", spec); |
| 3041 | } |
| 3042 | } |
| 3043 | |
| 3044 | success_result() |
| 3045 | } |
| 3046 | |
| 3047 | /// Helper to execute a parsed statement |
| 3048 | pub fn execute_statement( |
| 3049 | statement: &rush_parser::Statement, |
| 3050 | context: &mut rush_expand::Context, |
| 3051 | ) -> Result<ExecutionResult, String> { |
| 3052 | use rush_parser::Statement; |
| 3053 | |
| 3054 | match statement { |
| 3055 | Statement::Empty => Ok(success_result()), |
| 3056 | Statement::Complete(cmd) => { |
| 3057 | crate::control_flow::execute_complete_command(cmd, context) |
| 3058 | .map_err(|e| e.to_string()) |
| 3059 | } |
| 3060 | Statement::Script(commands) => { |
| 3061 | let mut last_result = success_result(); |
| 3062 | for cmd in commands { |
| 3063 | last_result = crate::control_flow::execute_complete_command(cmd, context) |
| 3064 | .map_err(|e| e.to_string())?; |
| 3065 | context.set_exit_status(last_result.exit_code()); |
| 3066 | } |
| 3067 | Ok(last_result) |
| 3068 | } |
| 3069 | } |
| 3070 | } |
| 3071 | |
| 3072 | /// `complete` builtin - Define command-specific completions |
| 3073 | /// |
| 3074 | /// Usage: |
| 3075 | /// complete -c COMMAND [-a COMPLETIONS] [-d DESC] [-s SHORT] [-l LONG] [-f] [-n COND] |
| 3076 | /// complete -c COMMAND -e # Erase completions |
| 3077 | /// complete -p # Print all completions |
| 3078 | /// complete -c COMMAND -p # Print completions for COMMAND |
| 3079 | /// |
| 3080 | /// Options: |
| 3081 | /// -c COMMAND The command to add completions for |
| 3082 | /// -a ARGS Completions to add (space-separated, or command in parentheses) |
| 3083 | /// -d DESC Description for the completion |
| 3084 | /// -s SHORT Short option (e.g., -v) |
| 3085 | /// -l LONG Long option (e.g., --verbose) |
| 3086 | /// -f Disable file completion for this command |
| 3087 | /// -n COND Condition for when this completion applies |
| 3088 | /// -e Erase all completions for the command |
| 3089 | /// -p Print completions |
| 3090 | fn builtin_complete(args: &[String], _context: &rush_expand::Context) -> ExecutionResult { |
| 3091 | use rush_interactive::{ |
| 3092 | add_completion, remove_completions, with_registry, |
| 3093 | CompletionSource, CompletionSpec, |
| 3094 | }; |
| 3095 | |
| 3096 | let mut command: Option<String> = None; |
| 3097 | let mut completions: Option<String> = None; |
| 3098 | let mut description: Option<String> = None; |
| 3099 | let mut short_opt: Option<char> = None; |
| 3100 | let mut long_opt: Option<String> = None; |
| 3101 | let mut no_files = false; |
| 3102 | let mut condition: Option<String> = None; |
| 3103 | let mut erase = false; |
| 3104 | let mut print = false; |
| 3105 | |
| 3106 | // Parse arguments |
| 3107 | let mut i = 0; |
| 3108 | while i < args.len() { |
| 3109 | let arg = &args[i]; |
| 3110 | match arg.as_str() { |
| 3111 | "-c" => { |
| 3112 | i += 1; |
| 3113 | if i < args.len() { |
| 3114 | command = Some(args[i].clone()); |
| 3115 | } else { |
| 3116 | eprintln!("complete: -c requires an argument"); |
| 3117 | return error_result(); |
| 3118 | } |
| 3119 | } |
| 3120 | "-a" => { |
| 3121 | i += 1; |
| 3122 | if i < args.len() { |
| 3123 | completions = Some(args[i].clone()); |
| 3124 | } else { |
| 3125 | eprintln!("complete: -a requires an argument"); |
| 3126 | return error_result(); |
| 3127 | } |
| 3128 | } |
| 3129 | "-d" => { |
| 3130 | i += 1; |
| 3131 | if i < args.len() { |
| 3132 | description = Some(args[i].clone()); |
| 3133 | } else { |
| 3134 | eprintln!("complete: -d requires an argument"); |
| 3135 | return error_result(); |
| 3136 | } |
| 3137 | } |
| 3138 | "-s" => { |
| 3139 | i += 1; |
| 3140 | if i < args.len() { |
| 3141 | short_opt = args[i].chars().next(); |
| 3142 | } else { |
| 3143 | eprintln!("complete: -s requires an argument"); |
| 3144 | return error_result(); |
| 3145 | } |
| 3146 | } |
| 3147 | "-l" => { |
| 3148 | i += 1; |
| 3149 | if i < args.len() { |
| 3150 | long_opt = Some(args[i].clone()); |
| 3151 | } else { |
| 3152 | eprintln!("complete: -l requires an argument"); |
| 3153 | return error_result(); |
| 3154 | } |
| 3155 | } |
| 3156 | "-n" => { |
| 3157 | i += 1; |
| 3158 | if i < args.len() { |
| 3159 | condition = Some(args[i].clone()); |
| 3160 | } else { |
| 3161 | eprintln!("complete: -n requires an argument"); |
| 3162 | return error_result(); |
| 3163 | } |
| 3164 | } |
| 3165 | "-f" => no_files = true, |
| 3166 | "-e" => erase = true, |
| 3167 | "-p" => print = true, |
| 3168 | _ => { |
| 3169 | eprintln!("complete: unknown option: {}", arg); |
| 3170 | return error_result(); |
| 3171 | } |
| 3172 | } |
| 3173 | i += 1; |
| 3174 | } |
| 3175 | |
| 3176 | // Handle print mode |
| 3177 | if print { |
| 3178 | with_registry(|registry| { |
| 3179 | if let Some(cmd) = &command { |
| 3180 | // Print completions for specific command |
| 3181 | if let Some(specs) = registry.get(cmd) { |
| 3182 | for spec in specs { |
| 3183 | print_completion_spec(spec); |
| 3184 | } |
| 3185 | } |
| 3186 | } else { |
| 3187 | // Print all completions |
| 3188 | for (cmd, specs) in registry.all_specs() { |
| 3189 | println!("# Completions for '{}'", cmd); |
| 3190 | for spec in specs { |
| 3191 | print_completion_spec(spec); |
| 3192 | } |
| 3193 | } |
| 3194 | } |
| 3195 | }); |
| 3196 | return success_result(); |
| 3197 | } |
| 3198 | |
| 3199 | // Handle erase mode |
| 3200 | if erase { |
| 3201 | if let Some(cmd) = command { |
| 3202 | remove_completions(&cmd); |
| 3203 | return success_result(); |
| 3204 | } else { |
| 3205 | eprintln!("complete: -e requires -c COMMAND"); |
| 3206 | return error_result(); |
| 3207 | } |
| 3208 | } |
| 3209 | |
| 3210 | // Adding a completion requires a command |
| 3211 | let cmd = match command { |
| 3212 | Some(c) => c, |
| 3213 | None => { |
| 3214 | eprintln!("complete: -c COMMAND is required"); |
| 3215 | return error_result(); |
| 3216 | } |
| 3217 | }; |
| 3218 | |
| 3219 | // Determine the completion source |
| 3220 | let source = if let Some(comps) = completions { |
| 3221 | // Check if it's a dynamic command (wrapped in parentheses) |
| 3222 | if comps.starts_with('(') && comps.ends_with(')') { |
| 3223 | CompletionSource::Dynamic(comps[1..comps.len()-1].to_string()) |
| 3224 | } else { |
| 3225 | // Static list of completions (space-separated) |
| 3226 | CompletionSource::Static( |
| 3227 | comps.split_whitespace().map(String::from).collect() |
| 3228 | ) |
| 3229 | } |
| 3230 | } else if short_opt.is_some() || long_opt.is_some() { |
| 3231 | CompletionSource::Option { |
| 3232 | short: short_opt, |
| 3233 | long: long_opt, |
| 3234 | } |
| 3235 | } else if no_files { |
| 3236 | // Just marking no-files without adding completions |
| 3237 | CompletionSource::Static(vec![]) |
| 3238 | } else { |
| 3239 | eprintln!("complete: need -a, -s, -l, or -f"); |
| 3240 | return error_result(); |
| 3241 | }; |
| 3242 | |
| 3243 | // Create and register the completion spec |
| 3244 | let spec = CompletionSpec { |
| 3245 | command: cmd, |
| 3246 | condition, |
| 3247 | source, |
| 3248 | description, |
| 3249 | no_files, |
| 3250 | }; |
| 3251 | |
| 3252 | add_completion(spec); |
| 3253 | success_result() |
| 3254 | } |
| 3255 | |
| 3256 | fn print_completion_spec(spec: &rush_interactive::CompletionSpec) { |
| 3257 | use rush_interactive::CompletionSource; |
| 3258 | |
| 3259 | let mut parts = vec![format!("complete -c {}", spec.command)]; |
| 3260 | |
| 3261 | if let Some(ref cond) = spec.condition { |
| 3262 | parts.push(format!("-n \"{}\"", cond)); |
| 3263 | } |
| 3264 | |
| 3265 | match &spec.source { |
| 3266 | CompletionSource::Static(items) if !items.is_empty() => { |
| 3267 | parts.push(format!("-a \"{}\"", items.join(" "))); |
| 3268 | } |
| 3269 | CompletionSource::Dynamic(cmd) => { |
| 3270 | parts.push(format!("-a \"({})\"", cmd)); |
| 3271 | } |
| 3272 | CompletionSource::ShortOption(c) => { |
| 3273 | parts.push(format!("-s {}", c)); |
| 3274 | } |
| 3275 | CompletionSource::LongOption(s) => { |
| 3276 | parts.push(format!("-l {}", s)); |
| 3277 | } |
| 3278 | CompletionSource::Option { short, long } => { |
| 3279 | if let Some(c) = short { |
| 3280 | parts.push(format!("-s {}", c)); |
| 3281 | } |
| 3282 | if let Some(l) = long { |
| 3283 | parts.push(format!("-l {}", l)); |
| 3284 | } |
| 3285 | } |
| 3286 | _ => {} |
| 3287 | } |
| 3288 | |
| 3289 | if let Some(ref desc) = spec.description { |
| 3290 | parts.push(format!("-d \"{}\"", desc)); |
| 3291 | } |
| 3292 | |
| 3293 | if spec.no_files { |
| 3294 | parts.push("-f".to_string()); |
| 3295 | } |
| 3296 | |
| 3297 | println!("{}", parts.join(" ")); |
| 3298 | } |
| 3299 | |
| 3300 | #[cfg(test)] |
| 3301 | mod tests { |
| 3302 | use super::*; |
| 3303 | |
| 3304 | #[test] |
| 3305 | fn test_find_in_path() { |
| 3306 | // ls should exist on most Unix systems |
| 3307 | let result = find_in_path("ls"); |
| 3308 | assert!(result.is_some()); |
| 3309 | } |
| 3310 | |
| 3311 | #[test] |
| 3312 | fn test_command_not_found() { |
| 3313 | let mut context = rush_expand::Context::empty(); |
| 3314 | let result = execute_command("nonexistent_command_12345", &[], false, &mut context); |
| 3315 | assert!(result.is_err()); |
| 3316 | } |
| 3317 | } |
| 3318 |