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comparison src/luan/modules/IoLuan.java @ 1367:836e00bf7ce2

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add Lucene backup_to
author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 18 Jun 2019 16:27:03 -0600
parents 0cceff521abb
children b765f146f4dc
comparison
equal deleted inserted replaced
1366:ae2321a09723 1367:836e00bf7ce2
132 } 132 }
133 }; 133 };
134 } 134 }
135 135
136 136
137 private static File objToFile(Object obj) { 137 private static File objToFile(Luan luan,Object obj) throws LuanException {
138 if( obj instanceof String ) { 138 if( obj instanceof String ) {
139 return new File((String)obj); 139 String fileName = (String)obj;
140 check(luan,"file:"+fileName);
141 return new File(fileName);
140 } 142 }
141 if( obj instanceof LuanTable ) { 143 if( obj instanceof LuanTable ) {
142 LuanTable t = (LuanTable)obj; 144 LuanTable t = (LuanTable)obj;
143 Object java = t.rawGet("java"); 145 Object java = t.rawGet("java");
144 if( java instanceof LuanFile ) { 146 if( java instanceof LuanFile ) {
442 444
443 @Override public boolean exists() { 445 @Override public boolean exists() {
444 return file.exists(); 446 return file.exists();
445 } 447 }
446 448
447 public void rename_to(Object destObj) throws LuanException { 449 public void rename_to(Luan luan,Object destObj) throws LuanException {
448 File dest = objToFile(destObj); 450 File dest = objToFile(luan,destObj);
449 if( dest==null ) 451 if( dest==null )
450 throw new LuanException( "bad argument #1 to 'objToFile' (string or file table expected)" ); 452 throw new LuanException( "bad argument #1 to 'rename_to' (string or file table expected)" );
451 if( !file.renameTo(dest) ) 453 if( !file.renameTo(dest) )
452 throw new LuanException("couldn't rename file "+file+" to "+dest); 454 throw new LuanException("couldn't rename file "+file+" to "+dest);
455 }
456
457 public void link_to(Luan luan,Object destObj) throws LuanException, IOException {
458 File dest = objToFile(luan,destObj);
459 if( dest==null )
460 throw new LuanException( "bad argument #1 to 'link_to' (string or file table expected)" );
461 Files.createLink( file.toPath(), dest.toPath() );
462 }
463
464 public void symlink_to(Luan luan,Object destObj) throws LuanException, IOException {
465 File dest = objToFile(luan,destObj);
466 if( dest==null )
467 throw new LuanException( "bad argument #1 to 'symlink_to' (string or file table expected)" );
468 Files.createSymbolicLink( file.toPath(), dest.toPath() );
453 } 469 }
454 470
455 public LuanFile canonical(Luan luan) throws LuanException, IOException { 471 public LuanFile canonical(Luan luan) throws LuanException, IOException {
456 return new LuanFile(luan,file.getCanonicalFile()); 472 return new LuanFile(luan,file.getCanonicalFile());
457 } 473 }
533 public static class BaseOs extends LuanIO { 549 public static class BaseOs extends LuanIO {
534 private final String cmd; 550 private final String cmd;
535 final File dir; 551 final File dir;
536 Process proc; 552 Process proc;
537 553
538 private BaseOs(String cmd,LuanTable options) throws IOException, LuanException { 554 private BaseOs(Luan luan,String cmd,LuanTable options) throws IOException, LuanException {
539 this.cmd = cmd; 555 this.cmd = cmd;
540 File dir = null; 556 File dir = null;
541 if( options != null ) { 557 if( options != null ) {
542 Map map = options.asMap(); 558 Map map = options.asMap();
543 Object obj = map.remove("dir"); 559 Object obj = map.remove("dir");
544 dir = objToFile(obj); 560 dir = objToFile(luan,obj);
545 if( dir==null ) 561 if( dir==null )
546 throw new LuanException( "bad option 'dir' (string or file table expected)" ); 562 throw new LuanException( "bad option 'dir' (string or file table expected)" );
547 if( !map.isEmpty() ) 563 if( !map.isEmpty() )
548 throw new LuanException( "unrecognized options: "+map ); 564 throw new LuanException( "unrecognized options: "+map );
549 } 565 }
594 } 610 }
595 } 611 }
596 612
597 public static final class LuanOs extends BaseOs { 613 public static final class LuanOs extends BaseOs {
598 public LuanOs(Luan luan,String cmd,LuanTable options) throws IOException, LuanException { 614 public LuanOs(Luan luan,String cmd,LuanTable options) throws IOException, LuanException {
599 super(cmd,options); 615 super(luan,cmd,options);
600 check(luan,"os:"+cmd); 616 check(luan,"os:"+cmd);
601 this.proc = Runtime.getRuntime().exec(cmd,null,dir); 617 this.proc = Runtime.getRuntime().exec(cmd,null,dir);
602 } 618 }
603 } 619 }
604 620
605 public static final class LuanBash extends BaseOs { 621 public static final class LuanBash extends BaseOs {
606 public LuanBash(Luan luan,String cmd,LuanTable options) throws IOException, LuanException { 622 public LuanBash(Luan luan,String cmd,LuanTable options) throws IOException, LuanException {
607 super(cmd,options); 623 super(luan,cmd,options);
608 check(luan,"bash:"+cmd); 624 check(luan,"bash:"+cmd);
609 this.proc = Runtime.getRuntime().exec(new String[]{"bash","-c",cmd},null,dir); 625 this.proc = Runtime.getRuntime().exec(new String[]{"bash","-c",cmd},null,dir);
610 } 626 }
611 } 627 }
612 628