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comparison src/org/tmatesoft/hg/repo/HgDataFile.java @ 323:4c7e3ba67213

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Exception when analyzing metadata of an empty renamed file
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 30 Sep 2011 08:44:48 +0200
parents d68dcb3b5f49
children a674b8590362
comparison
equal deleted inserted replaced
322:d68dcb3b5f49 323:4c7e3ba67213
219 try { 219 try {
220 insp.checkFailed(); // XXX is there real need to throw IOException from ContentPipe? 220 insp.checkFailed(); // XXX is there real need to throw IOException from ContentPipe?
221 } catch (HgDataStreamException ex) { 221 } catch (HgDataStreamException ex) {
222 throw ex; 222 throw ex;
223 } catch (IOException ex) { 223 } catch (IOException ex) {
224 throw new HgDataStreamException(getPath(), ex); 224 throw new HgDataStreamException(getPath(), ex).setRevisionNumber(revision);
225 } catch (HgException ex) { 225 } catch (HgException ex) {
226 // shall not happen, unless we changed ContentPipe or its subclass 226 // shall not happen, unless we changed ContentPipe or its subclass
227 throw new HgDataStreamException(getPath(), ex.getClass().getName(), ex); 227 throw new HgDataStreamException(getPath(), ex.getClass().getName(), ex);
228 } 228 }
229 } 229 }
437 throw new CancelledException(); 437 throw new CancelledException();
438 } 438 }
439 }); 439 });
440 } catch (CancelledException ex) { 440 } catch (CancelledException ex) {
441 // it's ok, we did that 441 // it's ok, we did that
442 } catch (Exception ex) {
443 throw new HgDataStreamException(getPath(), "Can't initialize metadata", ex).setRevisionNumber(localRev);
444 } 442 }
445 } 443 }
446 444
447 private static final class MetadataEntry { 445 private static final class MetadataEntry {
448 private final String entry; 446 private final String entry;
571 // which can't be used here because we can't convert bytes to chars as we read them 569 // which can't be used here because we can't convert bytes to chars as we read them
572 // (there might be multi-byte encoding), and we need to collect all bytes before converting to string 570 // (there might be multi-byte encoding), and we need to collect all bytes before converting to string
573 ByteArrayOutputStream bos = new ByteArrayOutputStream(); 571 ByteArrayOutputStream bos = new ByteArrayOutputStream();
574 String key = null, value = null; 572 String key = null, value = null;
575 boolean byteOne = false; 573 boolean byteOne = false;
574 boolean metadataIsComplete = false;
576 for (int i = 2; i < daLength; i++) { 575 for (int i = 2; i < daLength; i++) {
577 byte b = data.readByte(); 576 byte b = data.readByte();
578 if (b == '\n') { 577 if (b == '\n') {
579 if (byteOne) { // i.e. \n follows 1 578 if (byteOne) { // i.e. \n follows 1
580 lastEntryStart = i+1; 579 lastEntryStart = i+1;
580 metadataIsComplete = true;
581 // XXX is it possible to have here incomplete key/value (i.e. if last pair didn't end with \n) 581 // XXX is it possible to have here incomplete key/value (i.e. if last pair didn't end with \n)
582 // if yes, need to set metadataIsComplete to true in that case as well
582 break; 583 break;
583 } 584 }
584 if (key == null || lastColon == -1 || i <= lastColon) { 585 if (key == null || lastColon == -1 || i <= lastColon) {
585 throw new IllegalStateException(); // FIXME log instead and record null key in the metadata. Ex just to fail fast during dev 586 throw new IllegalStateException(); // FIXME log instead and record null key in the metadata. Ex just to fail fast during dev
586 } 587 }
608 byteOne = true; 609 byteOne = true;
609 } else { 610 } else {
610 bos.write(b); 611 bos.write(b);
611 } 612 }
612 } 613 }
613 if (data.isEmpty() || !byteOne) { 614 // data.isEmpty is not reliable, renamed files of size==0 keep only metadata
615 if (!metadataIsComplete) {
616 // XXX perhaps, worth a testcase (empty file, renamed, read or ask ifCopy
614 throw new HgDataStreamException(fname, "Metadata is not closed properly", null); 617 throw new HgDataStreamException(fname, "Metadata is not closed properly", null);
615 } 618 }
616 return lastEntryStart; 619 return lastEntryStart;
617 } 620 }
618 621