Showing the changes to java/pkg/com/sun/tools/script/shell/init.js (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,884 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | /** | ||
| 27 | * jrunscript JavaScript built-in functions and objects. | ||
| 28 | */ | ||
| 29 | |||
| 30 | /** | ||
| 31 | * Creates an object that delegates all method calls on | ||
| 32 | * it to the 'invoke' method on the given delegate object.<br> | ||
| 33 | * | ||
| 34 | * Example: | ||
| 35 | * <pre> | ||
| 36 | * <code> | ||
| 37 | * var x = { invoke: function(name, args) { //code...} | ||
| 38 | * var y = new JSInvoker(x); | ||
| 39 | * y.func(3, 3); // calls x.invoke('func', args); where args is array of arguments | ||
| 40 | * </code> | ||
| 41 | * </pre> | ||
| 42 | * @param obj object to be wrapped by JSInvoker | ||
| 43 | * @constructor | ||
| 44 | */ | ||
| 45 | function JSInvoker(obj) { | ||
| 46 | return new JSAdapter({ | ||
| 47 | __get__ : function(name) { | ||
| 48 | return function() { | ||
| 49 | return obj.invoke(name, arguments); | ||
| 50 | } | ||
| 51 | } | ||
| 52 | }); | ||
| 53 | } | ||
| 54 | |||
| 55 | /** | ||
| 56 | * This variable represents OS environment. Environment | ||
| 57 | * variables can be accessed as fields of this object. For | ||
| 58 | * example, env.PATH will return PATH value configured. | ||
| 59 | */ | ||
| 60 | var env = new JSAdapter({ | ||
| 61 | __get__ : function (name) { | ||
| 62 | return java.lang.System.getenv(name); | ||
| 63 | }, | ||
| 64 | __has__ : function (name) { | ||
| 65 | return java.lang.System.getenv().containsKey(name); | ||
| 66 | }, | ||
| 67 | __getIds__ : function() { | ||
| 68 | return java.lang.System.getenv().keySet().toArray(); | ||
| 69 | }, | ||
| 70 | __delete__ : function(name) { | ||
| 71 | println("can't delete env item"); | ||
| 72 | }, | ||
| 73 | __put__ : function (name, value) { | ||
| 74 | println("can't change env item"); | ||
| 75 | }, | ||
| 76 | toString: function() { | ||
| 77 | return java.lang.System.getenv().toString(); | ||
| 78 | } | ||
| 79 | }); | ||
| 80 | |||
| 81 | /** | ||
| 82 | * Creates a convenient script object to deal with java.util.Map instances. | ||
| 83 | * The result script object's field names are keys of the Map. For example, | ||
| 84 | * scriptObj.keyName can be used to access value associated with given key.<br> | ||
| 85 | * Example: | ||
| 86 | * <pre> | ||
| 87 | * <code> | ||
| 88 | * var x = java.lang.SystemProperties(); | ||
| 89 | * var y = jmap(x); | ||
| 90 | * println(y['java.class.path']); // prints java.class.path System property | ||
| 91 | * delete y['java.class.path']; // remove java.class.path System property | ||
| 92 | * </code> | ||
| 93 | * </pre> | ||
| 94 | * | ||
| 95 | * @param map java.util.Map instance that will be wrapped | ||
| 96 | * @constructor | ||
| 97 | */ | ||
| 98 | function jmap(map) { | ||
| 99 | return new JSAdapter({ | ||
| 100 | __get__ : function(name) { | ||
| 101 | if (map.containsKey(name)) { | ||
| 102 | return map.get(name); | ||
| 103 | } else { | ||
| 104 | return undefined; | ||
| 105 | } | ||
| 106 | }, | ||
| 107 | __has__ : function(name) { | ||
| 108 | return map.containsKey(name); | ||
| 109 | }, | ||
| 110 | |||
| 111 | __delete__ : function (name) { | ||
| 112 | return map.remove(name); | ||
| 113 | }, | ||
| 114 | __put__ : function(name, value) { | ||
| 115 | map.put(name, value); | ||
| 116 | }, | ||
| 117 | __getIds__ : function() { | ||
| 118 | return map.keySet().toArray(); | ||
| 119 | }, | ||
| 120 | toString: function() { | ||
| 121 | return map.toString(); | ||
| 122 | } | ||
| 123 | }); | ||
| 124 | } | ||
| 125 | |||
| 126 | /** | ||
| 127 | * Creates a convenient script object to deal with java.util.List instances. | ||
| 128 | * The result script object behaves like an array. For example, | ||
| 129 | * scriptObj[index] syntax can be used to access values in the List instance. | ||
| 130 | * 'length' field gives size of the List. <br> | ||
| 131 | * | ||
| 132 | * Example: | ||
| 133 | * <pre> | ||
| 134 | * <code> | ||
| 135 | * var x = new java.util.ArrayList(4); | ||
| 136 | * x.add('Java'); | ||
| 137 | * x.add('JavaScript'); | ||
| 138 | * x.add('SQL'); | ||
| 139 | * x.add('XML'); | ||
| 140 | * | ||
| 141 | * var y = jlist(x); | ||
| 142 | * println(y[2]); // prints third element of list | ||
| 143 | * println(y.length); // prints size of the list | ||
| 144 | * | ||
| 145 | * @param map java.util.List instance that will be wrapped | ||
| 146 | * @constructor | ||
| 147 | */ | ||
| 148 | function jlist(list) { | ||
| 149 | function isValid(index) { | ||
| 150 | return typeof(index) == 'number' && | ||
| 151 | index > -1 && index < list.size(); | ||
| 152 | } | ||
| 153 | return new JSAdapter({ | ||
| 154 | __get__ : function(name) { | ||
| 155 | if (isValid(name)) { | ||
| 156 | return list.get(name); | ||
| 157 | } else if (name == 'length') { | ||
| 158 | return list.size(); | ||
| 159 | } else { | ||
| 160 | return undefined; | ||
| 161 | } | ||
| 162 | }, | ||
| 163 | __has__ : function (name) { | ||
| 164 | return isValid(name) || name == 'length'; | ||
| 165 | }, | ||
| 166 | __delete__ : function(name) { | ||
| 167 | if (isValid(name)) { | ||
| 168 | list.remove(name); | ||
| 169 | } | ||
| 170 | }, | ||
| 171 | __put__ : function(name, value) { | ||
| 172 | if (isValid(name)) { | ||
| 173 | list.set(name, value); | ||
| 174 | } | ||
| 175 | }, | ||
| 176 | __getIds__: function() { | ||
| 177 | var res = new Array(list.size()); | ||
| 178 | for (var i = 0; i < res.length; i++) { | ||
| 179 | res[i] = i; | ||
| 180 | } | ||
| 181 | return res; | ||
| 182 | }, | ||
| 183 | toString: function() { | ||
| 184 | return list.toString(); | ||
| 185 | } | ||
| 186 | }); | ||
| 187 | } | ||
| 188 | |||
| 189 | /** | ||
| 190 | * This is java.lang.System properties wrapped by jmap. | ||
| 191 | * For eg. to access java.class.path property, you can use | ||
| 192 | * the syntax sysProps["java.class.path"] | ||
| 193 | */ | ||
| 194 | var sysProps = jmap(java.lang.System.getProperties()); | ||
| 195 | |||
| 196 | // stdout, stderr & stdin | ||
| 197 | var out = java.lang.System.out; | ||
| 198 | var err = java.lang.System.err; | ||
| 199 | // can't use 'in' because it is a JavaScript keyword :-( | ||
| 200 | var inp = java.lang.System["in"]; | ||
| 201 | |||
| 202 | // useful imports for often used io, net classes | ||
| 203 | importPackage(java.io); | ||
| 204 | importPackage(java.net); | ||
| 205 | |||
| 206 | /** | ||
| 207 | * Generic any object to input stream mapper | ||
| 208 | * @param str input file name, URL or InputStream | ||
| 209 | * @return InputStream object | ||
| 210 | * @private | ||
| 211 | */ | ||
| 212 | function inStream(str) { | ||
| 213 | if (typeof(str) == "string") { | ||
| 214 | // '-' means standard input | ||
| 215 | if (str == '-') { | ||
| 216 | return java.lang.System["in"]; | ||
| 217 | } | ||
| 218 | // try file first | ||
| 219 | var file = null; | ||
| 220 | try { | ||
| 221 | file = pathToFile(str); | ||
| 222 | } catch (e) { | ||
| 223 | } | ||
| 224 | if (file && file.exists()) { | ||
| 225 | return new FileInputStream(file); | ||
| 226 | } else { | ||
| 227 | try { | ||
| 228 | // treat the string as URL | ||
| 229 | return new URL(str).openStream(); | ||
| 230 | } catch (e) { | ||
| 231 | throw 'file or URL ' + str + ' not found'; | ||
| 232 | } | ||
| 233 | } | ||
| 234 | } else { | ||
| 235 | if (str instanceof InputStream) { | ||
| 236 | return str; | ||
| 237 | } else if (str instanceof URL) { | ||
| 238 | return str.openStream(); | ||
| 239 | } else if (str instanceof File) { | ||
| 240 | return new FileInputStream(str); | ||
| 241 | } | ||
| 242 | } | ||
| 243 | // everything failed, just give input stream | ||
| 244 | return java.lang.System["in"]; | ||
| 245 | } | ||
| 246 | |||
| 247 | /** | ||
| 248 | * Generic any object to output stream mapper | ||
| 249 | * | ||
| 250 | * @param out output file name or stream | ||
| 251 | * @return OutputStream object | ||
| 252 | * @private | ||
| 253 | */ | ||
| 254 | function outStream(out) { | ||
| 255 | if (typeof(out) == "string") { | ||
| 256 | if (out == '>') { | ||
| 257 | return java.lang.System.out; | ||
| 258 | } else { | ||
| 259 | // treat it as file | ||
| 260 | return new FileOutputStream(pathToFile(out)); | ||
| 261 | } | ||
| 262 | } else { | ||
| 263 | if (out instanceof OutputStream) { | ||
| 264 | return out; | ||
| 265 | } else if (out instanceof File) { | ||
| 266 | return new FileOutputStream(out); | ||
| 267 | } | ||
| 268 | } | ||
| 269 | |||
| 270 | // everything failed, just return System.out | ||
| 271 | return java.lang.System.out; | ||
| 272 | } | ||
| 273 | |||
| 274 | /** | ||
| 275 | * stream close takes care not to close stdin, out & err. | ||
| 276 | * @private | ||
| 277 | */ | ||
| 278 | function streamClose(stream) { | ||
| 279 | if (stream) { | ||
| 280 | if (stream != java.lang.System["in"] && | ||
| 281 | stream != java.lang.System.out && | ||
| 282 | stream != java.lang.System.err) { | ||
| 283 | try { | ||
| 284 | stream.close(); | ||
| 285 | } catch (e) { | ||
| 286 | println(e); | ||
| 287 | } | ||
| 288 | } | ||
| 289 | } | ||
| 290 | } | ||
| 291 | |||
| 292 | /** | ||
| 293 | * Loads and evaluates JavaScript code from a stream or file or URL<br> | ||
| 294 | * | ||
| 295 | * Examples: | ||
| 296 | * <pre> | ||
| 297 | * <code> | ||
| 298 | * load('test.js'); // load script file 'test.js' | ||
| 299 | * load('http://java.sun.com/foo.js'); // load from a URL | ||
| 300 | * </code> | ||
| 301 | * </pre> | ||
| 302 | * | ||
| 303 | * @param str input from which script is loaded and evaluated | ||
| 304 | */ | ||
| 305 | function load(str) { | ||
| 306 | var stream = inStream(str); | ||
| 307 | var bstream = new BufferedInputStream(stream); | ||
| 308 | var reader = new BufferedReader(new InputStreamReader(bstream)); | ||
| 309 | var oldFilename = engine.get(engine.FILENAME); | ||
| 310 | engine.put(engine.FILENAME, str); | ||
| 311 | try { | ||
| 312 | engine.eval(reader); | ||
| 313 | } finally { | ||
| 314 | engine.put(engine.FILENAME, oldFilename); | ||
| 315 | streamClose(stream); | ||
| 316 | } | ||
| 317 | } | ||
| 318 | |||
| 319 | // file system utilities | ||
| 320 | |||
| 321 | /** | ||
| 322 | * Creates a Java byte[] of given length | ||
| 323 | * @param len size of the array to create | ||
| 324 | * @private | ||
| 325 | */ | ||
| 326 | function javaByteArray(len) { | ||
| 327 | return java.lang.reflect.Array.newInstance(java.lang.Byte.TYPE, len); | ||
| 328 | } | ||
| 329 | |||
| 330 | var curDir = new File('.'); | ||
| 331 | |||
| 332 | /** | ||
| 333 | * Print present working directory | ||
| 334 | */ | ||
| 335 | function pwd() { | ||
| 336 | println(curDir.getAbsolutePath()); | ||
| 337 | } | ||
| 338 | |||
| 339 | /** | ||
| 340 | * Changes present working directory to given directory | ||
| 341 | * @param target directory to change to. optional, defaults to user's HOME | ||
| 342 | */ | ||
| 343 | function cd(target) { | ||
| 344 | if (target == undefined) { | ||
| 345 | target = sysProps["user.home"]; | ||
| 346 | } | ||
| 347 | if (!(target instanceof File)) { | ||
| 348 | target = pathToFile(target); | ||
| 349 | } | ||
| 350 | if (target.exists() && target.isDirectory()) { | ||
| 351 | curDir = target; | ||
| 352 | } else { | ||
| 353 | println(target + " is not a directory"); | ||
| 354 | } | ||
| 355 | } | ||
| 356 | |||
| 357 | /** | ||
| 358 | * Converts path to java.io.File taking care of shell present working dir | ||
| 359 | * | ||
| 360 | * @param pathname file path to be converted | ||
| 361 | * @private | ||
| 362 | */ | ||
| 363 | function pathToFile(pathname) { | ||
| 364 | var tmp = pathname; | ||
| 365 | if (!(tmp instanceof File)) { | ||
| 366 | tmp = new File(tmp); | ||
| 367 | } | ||
| 368 | if (!tmp.isAbsolute()) { | ||
| 369 | return new File(curDir, pathname); | ||
| 370 | } else { | ||
| 371 | return tmp; | ||
| 372 | } | ||
| 373 | } | ||
| 374 | |||
| 375 | /** | ||
| 376 | * Copies a file or URL or stream to another file or stream | ||
| 377 | * | ||
| 378 | * @param from input file or URL or stream | ||
| 379 | * @param to output stream or file | ||
| 380 | */ | ||
| 381 | function cp(from, to) { | ||
| 382 | if (from == to) { | ||
| 383 | println("file " + from + " cannot be copied onto itself!"); | ||
| 384 | return; | ||
| 385 | } | ||
| 386 | var inp = inStream(from); | ||
| 387 | var out = outStream(to); | ||
| 388 | var binp = new BufferedInputStream(inp); | ||
| 389 | var bout = new BufferedOutputStream(out); | ||
| 390 | var buff = javaByteArray(1024); | ||
| 391 | var len; | ||
| 392 | while ((len = binp.read(buff)) > 0 ) | ||
| 393 | bout.write(buff, 0, len); | ||
| 394 | |||
| 395 | bout.flush(); | ||
| 396 | streamClose(inp); | ||
| 397 | streamClose(out); | ||
| 398 | } | ||
| 399 | |||
| 400 | /** | ||
| 401 | * Shows the content of a file or URL or any InputStream<br> | ||
| 402 | * Examples: | ||
| 403 | * <pre> | ||
| 404 | * <code> | ||
| 405 | * cat('test.txt'); // show test.txt file contents | ||
| 406 | * cat('http://java.net'); // show the contents from the URL http://java.net | ||
| 407 | * </code> | ||
| 408 | * </pre> | ||
| 409 | * @param obj input to show | ||
| 410 | * @param pattern optional. show only the lines matching the pattern | ||
| 411 | */ | ||
| 412 | function cat(obj, pattern) { | ||
| 413 | if (obj instanceof File && obj.isDirectory()) { | ||
| 414 | ls(obj); | ||
| 415 | return; | ||
| 416 | } | ||
| 417 | |||
| 418 | var inp = null; | ||
| 419 | if (!(obj instanceof Reader)) { | ||
| 420 | inp = inStream(obj); | ||
| 421 | obj = new BufferedReader(new InputStreamReader(inp)); | ||
| 422 | } | ||
| 423 | var line; | ||
| 424 | if (pattern) { | ||
| 425 | var count = 1; | ||
| 426 | while ((line=obj.readLine()) != null) { | ||
| 427 | if (line.match(pattern)) { | ||
| 428 | println(count + "\t: " + line); | ||
| 429 | } | ||
| 430 | count++; | ||
| 431 | } | ||
| 432 | } else { | ||
| 433 | while ((line=obj.readLine()) != null) { | ||
| 434 | println(line); | ||
| 435 | } | ||
| 436 | } | ||
| 437 | } | ||
| 438 | |||
| 439 | /** | ||
| 440 | * Returns directory part of a filename | ||
| 441 | * | ||
| 442 | * @param pathname input path name | ||
| 443 | * @return directory part of the given file name | ||
| 444 | */ | ||
| 445 | function dirname(pathname) { | ||
| 446 | var dirName = "."; | ||
| 447 | // Normalize '/' to local file separator before work. | ||
| 448 | var i = pathname.replace('/', File.separatorChar ).lastIndexOf( | ||
| 449 | File.separator ); | ||
| 450 | if ( i != -1 ) | ||
| 451 | dirName = pathname.substring(0, i); | ||
| 452 | return dirName; | ||
| 453 | } | ||
| 454 | |||
| 455 | /** | ||
| 456 | * Creates a new dir of given name | ||
| 457 | * | ||
| 458 | * @param dir name of the new directory | ||
| 459 | */ | ||
| 460 | function mkdir(dir) { | ||
| 461 | var dir = pathToFile(dir); | ||
| 462 | println(dir.mkdir()? "created" : "can not create dir"); | ||
| 463 | } | ||
| 464 | |||
| 465 | /** | ||
| 466 | * Creates the directory named by given pathname, including | ||
| 467 | * any necessary but nonexistent parent directories. | ||
| 468 | * | ||
| 469 | * @param dir input path name | ||
| 470 | */ | ||
| 471 | function mkdirs(dir) { | ||
| 472 | var dir = pathToFile(dir); | ||
| 473 | println(dir.mkdirs()? "created" : "can not create dirs"); | ||
| 474 | } | ||
| 475 | |||
| 476 | /** | ||
| 477 | * Removes a given file | ||
| 478 | * | ||
| 479 | * @param pathname name of the file | ||
| 480 | */ | ||
| 481 | function rm(pathname) { | ||
| 482 | file = pathToFile(pathname); | ||
| 483 | if (!file.exists()) { | ||
| 484 | println("file not found: " + pathname); | ||
| 485 | return false; | ||
| 486 | } | ||
| 487 | // note that delete is a keyword in JavaScript! | ||
| 488 | println(file["delete"]()? "deleted" : "can not delete"); | ||
| 489 | } | ||
| 490 | |||
| 491 | /** | ||
| 492 | * Removes a given directory | ||
| 493 | * | ||
| 494 | * @param pathname name of the directory | ||
| 495 | */ | ||
| 496 | function rmdir(pathname) { | ||
| 497 | rm(pathname); | ||
| 498 | } | ||
| 499 | |||
| 500 | /** | ||
| 501 | * Synonym for 'rm' | ||
| 502 | */ | ||
| 503 | function del(pathname) { | ||
| 504 | rm(pathname); | ||
| 505 | } | ||
| 506 | |||
| 507 | /** | ||
| 508 | * Moves a file to another | ||
| 509 | * | ||
| 510 | * @param from original name of the file | ||
| 511 | * @param to new name for the file | ||
| 512 | */ | ||
| 513 | function mv(from, to) { | ||
| 514 | println(pathToFile(from).renameTo(pathToFile(to))? | ||
| 515 | "moved" : "can not move"); | ||
| 516 | } | ||
| 517 | |||
| 518 | /** | ||
| 519 | * Synonym for 'mv'. | ||
| 520 | */ | ||
| 521 | function ren(from, to) { | ||
| 522 | mv(from, to); | ||
| 523 | } | ||
| 524 | |||
| 525 | var months = [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", | ||
| 526 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ]; | ||
| 527 | |||
| 528 | /** | ||
| 529 | * Helper function called by ls | ||
| 530 | * @private | ||
| 531 | */ | ||
| 532 | function printFile(f) { | ||
| 533 | var sb = new java.lang.StringBuffer(); | ||
| 534 | sb.append(f.isDirectory()? "d" : "-"); | ||
| 535 | sb.append(f.canRead() ? "r": "-" ); | ||
| 536 | sb.append(f.canWrite() ? "w": "-" ); | ||
| 537 | sb.append(" "); | ||
| 538 | |||
| 539 | var d = new java.util.Date(f.lastModified()); | ||
| 540 | var c = new java.util.GregorianCalendar(); | ||
| 541 | c.setTime(d); | ||
| 542 | var day = c.get(java.util.Calendar.DAY_OF_MONTH); | ||
| 543 | sb.append(months[c.get(java.util.Calendar.MONTH)] | ||
| 544 | + " " + day ); | ||
| 545 | if (day < 10) { | ||
| 546 | sb.append(" "); | ||
| 547 | } | ||
| 548 | |||
| 549 | // to get fixed length 'length' field | ||
| 550 | var fieldlen = 8; | ||
| 551 | var len = new java.lang.StringBuffer(); | ||
| 552 | for(var j=0; j<fieldlen; j++) | ||
| 553 | len.append(" "); | ||
| 554 | len.insert(0, java.lang.Long.toString(f.length())); | ||
| 555 | len.setLength(fieldlen); | ||
| 556 | // move the spaces to the front | ||
| 557 | var si = len.toString().indexOf(" "); | ||
| 558 | if ( si != -1 ) { | ||
| 559 | var pad = len.toString().substring(si); | ||
| 560 | len.setLength(si); | ||
| 561 | len.insert(0, pad); | ||
| 562 | } | ||
| 563 | sb.append(len.toString()); | ||
| 564 | sb.append(" "); | ||
| 565 | sb.append(f.getName()); | ||
| 566 | if (f.isDirectory()) { | ||
| 567 | sb.append('/'); | ||
| 568 | } | ||
| 569 | println(sb.toString()); | ||
| 570 | } | ||
| 571 | |||
| 572 | /** | ||
| 573 | * Lists the files in a directory | ||
| 574 | * | ||
| 575 | * @param dir directory from which to list the files. optional, default to pwd | ||
| 576 | * @param filter pattern to filter the files listed. optional, default is '.'. | ||
| 577 | */ | ||
| 578 | function ls(dir, filter) { | ||
| 579 | if (dir) { | ||
| 580 | dir = pathToFile(dir); | ||
| 581 | } else { | ||
| 582 | dir = curDir; | ||
| 583 | } | ||
| 584 | if (dir.isDirectory()) { | ||
| 585 | var files = dir.listFiles(); | ||
| 586 | for (var i in files) { | ||
| 587 | var f = files[i]; | ||
| 588 | if (filter) { | ||
| 589 | if(!f.getName().match(filter)) { | ||
| 590 | continue; | ||
| 591 | } | ||
| 592 | } | ||
| 593 | printFile(f); | ||
| 594 | } | ||
| 595 | } else { | ||
| 596 | printFile(dir); | ||
| 597 | } | ||
| 598 | } | ||
| 599 | |||
| 600 | /** | ||
| 601 | * Synonym for 'ls'. | ||
| 602 | */ | ||
| 603 | function dir(d, filter) { | ||
| 604 | ls(d, filter); | ||
| 605 | } | ||
| 606 | |||
| 607 | /** | ||
| 608 | * Unix-like grep, but accepts JavaScript regex patterns | ||
| 609 | * | ||
| 610 | * @param pattern to search in files | ||
| 611 | * @param files one or more files | ||
| 612 | */ | ||
| 613 | function grep(pattern, files /*, one or more files */) { | ||
| 614 | if (arguments.length < 2) return; | ||
| 615 | for (var i = 1; i < arguments.length; i++) { | ||
| 616 | println(arguments[i] + ":"); | ||
| 617 | cat(arguments[i], pattern); | ||
| 618 | } | ||
| 619 | } | ||
| 620 | |||
| 621 | /** | ||
| 622 | * Find in files. Calls arbitrary callback function | ||
| 623 | * for each matching file.<br> | ||
| 624 | * | ||
| 625 | * Examples: | ||
| 626 | * <pre> | ||
| 627 | * <code> | ||
| 628 | * find('.') | ||
| 629 | * find('.', '.*\.class', rm); // remove all .class files | ||
| 630 | * find('.', '.*\.java'); // print fullpath of each .java file | ||
| 631 | * find('.', '.*\.java', cat); // print all .java files | ||
| 632 | * </code> | ||
| 633 | * </pre> | ||
| 634 | * | ||
| 635 | * @param dir directory to search files | ||
| 636 | * @param pattern to search in the files | ||
| 637 | * @param callback function to call for matching files | ||
| 638 | */ | ||
| 639 | function find(dir, pattern, callback) { | ||
| 640 | dir = pathToFile(dir); | ||
| 641 | if (!callback) callback = print; | ||
| 642 | var files = dir.listFiles(); | ||
| 643 | for (var f in files) { | ||
| 644 | var file = files[f]; | ||
| 645 | if (file.isDirectory()) { | ||
| 646 | find(file, pattern, callback); | ||
| 647 | } else { | ||
| 648 | if (pattern) { | ||
| 649 | if (file.getName().match(pattern)) { | ||
| 650 | callback(file); | ||
| 651 | } | ||
| 652 | } else { | ||
| 653 | callback(file); | ||
| 654 | } | ||
| 655 | } | ||
| 656 | } | ||
| 657 | } | ||
| 658 | |||
| 659 | // process utilities | ||
| 660 | |||
| 661 | /** | ||
| 662 | * Exec's a child process, waits for completion & returns exit code | ||
| 663 | * | ||
| 664 | * @param cmd command to execute in child process | ||
| 665 | */ | ||
| 666 | function exec(cmd) { | ||
| 667 | var process = java.lang.Runtime.getRuntime().exec(cmd); | ||
| 668 | var inp = new DataInputStream(process.getInputStream()); | ||
| 669 | var line = null; | ||
| 670 | while ((line = inp.readLine()) != null) { | ||
| 671 | println(line); | ||
| 672 | } | ||
| 673 | process.waitFor(); | ||
| 674 | $exit = process.exitValue(); | ||
| 675 | } | ||
| 676 | |||
| 677 | /** | ||
| 678 | * Exit the shell program. | ||
| 679 | * | ||
| 680 | * @param exitCode integer code returned to OS shell. | ||
| 681 | * optional, defaults to 0 | ||
| 682 | */ | ||
| 683 | function exit(code) { | ||
| 684 | if (code) { | ||
| 685 | java.lang.System.exit(code + 0); | ||
| 686 | } else { | ||
| 687 | java.lang.System.exit(0); | ||
| 688 | } | ||
| 689 | } | ||
| 690 | |||
| 691 | /** | ||
| 692 | * synonym for exit | ||
| 693 | */ | ||
| 694 | function quit(code) { | ||
| 695 | exit(code); | ||
| 696 | } | ||
| 697 | |||
| 698 | // XML utilities | ||
| 699 | |||
| 700 | /** | ||
| 701 | * Converts input to DOM Document object | ||
| 702 | * | ||
| 703 | * @param inp file or reader. optional, without this param, | ||
| 704 | * this function returns a new DOM Document. | ||
| 705 | * @return returns a DOM Document object | ||
| 706 | */ | ||
| 707 | function XMLDocument(inp) { | ||
| 708 | var factory = javax.xml.parsers.DocumentBuilderFactory.newInstance(); | ||
| 709 | var builder = factory.newDocumentBuilder(); | ||
| 710 | if (inp) { | ||
| 711 | if (typeof(inp) == "string") { | ||
| 712 | return builder.parse(pathToFile(inp)); | ||
| 713 | } else { | ||
| 714 | return builder.parse(inp); | ||
| 715 | } | ||
| 716 | } else { | ||
| 717 | return builder.newDocument(); | ||
| 718 | } | ||
| 719 | } | ||
| 720 | |||
| 721 | /** | ||
| 722 | * Converts arbitrary stream, file, URL to XMLSource | ||
| 723 | * | ||
| 724 | * @param inp input stream or file or URL | ||
| 725 | * @return XMLSource object | ||
| 726 | */ | ||
| 727 | function XMLSource(inp) { | ||
| 728 | if (inp instanceof javax.xml.transform.Source) { | ||
| 729 | return inp; | ||
| 730 | } else if (inp instanceof Packages.org.w3c.dom.Document) { | ||
| 731 | return new javax.xml.transform.dom.DOMSource(inp); | ||
| 732 | } else { | ||
| 733 | inp = new BufferedInputStream(inStream(inp)); | ||
| 734 | return new javax.xml.transform.stream.StreamSource(inp); | ||
| 735 | } | ||
| 736 | } | ||
| 737 | |||
| 738 | /** | ||
| 739 | * Converts arbitrary stream, file to XMLResult | ||
| 740 | * | ||
| 741 | * @param inp output stream or file | ||
| 742 | * @return XMLResult object | ||
| 743 | */ | ||
| 744 | function XMLResult(out) { | ||
| 745 | if (out instanceof javax.xml.transform.Result) { | ||
| 746 | return out; | ||
| 747 | } else if (out instanceof Packages.org.w3c.dom.Document) { | ||
| 748 | return new javax.xml.transform.dom.DOMResult(out); | ||
| 749 | } else { | ||
| 750 | out = new BufferedOutputStream(outStream(out)); | ||
| 751 | return new javax.xml.transform.stream.StreamResult(out); | ||
| 752 | } | ||
| 753 | } | ||
| 754 | |||
| 755 | /** | ||
| 756 | * Perform XSLT transform | ||
| 757 | * | ||
| 758 | * @param inp Input XML to transform (URL, File or InputStream) | ||
| 759 | * @param style XSL Stylesheet to be used (URL, File or InputStream). optional. | ||
| 760 | * @param out Output XML (File or OutputStream | ||
| 761 | */ | ||
| 762 | function XSLTransform(inp, style, out) { | ||
| 763 | switch (arguments.length) { | ||
| 764 | case 2: | ||
| 765 | inp = arguments[0]; | ||
| 766 | out = arguments[1]; | ||
| 767 | break; | ||
| 768 | case 3: | ||
| 769 | inp = arguments[0]; | ||
| 770 | style = arguments[1]; | ||
| 771 | out = arguments[2]; | ||
| 772 | break; | ||
| 773 | default: | ||
| 774 | println("XSL tranform requires 2 or 3 arguments"); | ||
| 775 | return; | ||
| 776 | } | ||
| 777 | |||
| 778 | var factory = javax.xml.transform.TransformerFactory.newInstance(); | ||
| 779 | var tranformer; | ||
| 780 | if (style) { | ||
| 781 | transformer = factory.newTransformer(XMLSource(style)); | ||
| 782 | } else { | ||
| 783 | transformer = factory.newTransformer(); | ||
| 784 | } | ||
| 785 | var source = XMLSource(inp); | ||
| 786 | var result = XMLResult(out); | ||
| 787 | transformer.transform(source, result); | ||
| 788 | if (source.getInputStream) { | ||
| 789 | streamClose(source.getInputStream()); | ||
| 790 | } | ||
| 791 | if (result.getOutputStream) { | ||
| 792 | streamClose(result.getOutputStream()); | ||
| 793 | } | ||
| 794 | } | ||
| 795 | |||
| 796 | // miscellaneous utilities | ||
| 797 | |||
| 798 | /** | ||
| 799 | * Prints which command is selected from PATH | ||
| 800 | * | ||
| 801 | * @param cmd name of the command searched from PATH | ||
| 802 | */ | ||
| 803 | function which(cmd) { | ||
| 804 | var st = new java.util.StringTokenizer(env.PATH, File.pathSeparator); | ||
| 805 | while (st.hasMoreTokens()) { | ||
| 806 | var file = new File(st.nextToken(), cmd); | ||
| 807 | if (file.exists()) { | ||
| 808 | println(file.getAbsolutePath()); | ||
| 809 | return; | ||
| 810 | } | ||
| 811 | } | ||
| 812 | } | ||
| 813 | |||
| 814 | /** | ||
| 815 | * Prints IP addresses of given domain name | ||
| 816 | * | ||
| 817 | * @param name domain name | ||
| 818 | */ | ||
| 819 | function ip(name) { | ||
| 820 | var addrs = InetAddress.getAllByName(name); | ||
| 821 | for (var i in addrs) { | ||
| 822 | println(addrs[i]); | ||
| 823 | } | ||
| 824 | } | ||
| 825 | |||
| 826 | /** | ||
| 827 | * Prints current date in current locale | ||
| 828 | */ | ||
| 829 | function date() { | ||
| 830 | println(new Date().toLocaleString()); | ||
| 831 | } | ||
| 832 | |||
| 833 | /** | ||
| 834 | * Echoes the given string arguments | ||
| 835 | */ | ||
| 836 | function echo(x) { | ||
| 837 | for (var i = 0; i < arguments.length; i++) { | ||
| 838 | println(arguments[i]); | ||
| 839 | } | ||
| 840 | } | ||
| 841 | |||
| 842 | /** | ||
| 843 | * This is C-like printf | ||
| 844 | * | ||
| 845 | * @param format string to format the rest of the print items | ||
| 846 | * @param args variadic argument list | ||
| 847 | */ | ||
| 848 | function printf(format, args/*, more args*/) { | ||
| 849 | var array = java.lang.reflect.Array.newInstance(java.lang.Object, | ||
| 850 | arguments.length - 1); | ||
| 851 | for (var i = 0; i < array.length; i++) { | ||
| 852 | array[i] = arguments[i+1]; | ||
| 853 | } | ||
| 854 | return java.lang.System.out.printf(format, array); | ||
| 855 | } | ||
| 856 | |||
| 857 | /** | ||
| 858 | * Reads one or more lines from stdin after printing prompt | ||
| 859 | * | ||
| 860 | * @param prompt optional, default is '>' | ||
| 861 | * @param multiline to tell whether to read single line or multiple lines | ||
| 862 | */ | ||
| 863 | function read(prompt, multiline) { | ||
| 864 | if (!prompt) { | ||
| 865 | prompt = '>'; | ||
| 866 | } | ||
| 867 | var inp = java.lang.System["in"]; | ||
| 868 | var reader = new BufferedReader(new InputStreamReader(inp)); | ||
| 869 | if (multiline) { | ||
| 870 | var line = ''; | ||
| 871 | while (true) { | ||
| 872 | java.lang.System.err.print(prompt); | ||
| 873 | java.lang.System.err.flush(); | ||
| 874 | var tmp = reader.readLine(); | ||
| 875 | if (tmp == '' || tmp == null) break; | ||
| 876 | line += tmp + '\n'; | ||
| 877 | } | ||
| 878 | return line; | ||
| 879 | } else { | ||
| 880 | java.lang.System.err.print(prompt); | ||
| 881 | java.lang.System.err.flush(); | ||
| 882 | return reader.readLine(); | ||
| 883 | } | ||
| 884 | } | ||