annotate src/com/tmate/hgkit/ll/Changelog.java @ 43:1b26247d7367

Calculate result length of the patch operarion, when unknown
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 14 Jan 2011 04:41:05 +0100
parents e929cecae4e1
children b01500fe2604
rev   line source
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1 /*
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2 * Copyright (c) 2010, 2011 Artem Tikhomirov
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3 */
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4 package com.tmate.hgkit.ll;
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6 import java.util.ArrayList;
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7 import java.util.Arrays;
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8 import java.util.List;
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10 /**
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11 * Representation of the Mercurial changelog file (list of ChangeSets)
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12 * @author artem
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13 */
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14 public class Changelog extends Revlog {
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16 /*package-local*/ Changelog(HgRepository hgRepo, RevlogStream content) {
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17 super(hgRepo, content);
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18 }
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20 public void all(final Changeset.Inspector inspector) {
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21 Revlog.Inspector i = new Revlog.Inspector() {
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23 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
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24 Changeset cset = Changeset.parse(data, 0, data.length);
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25 // XXX there's no guarantee for Changeset.Callback that distinct instance comes each time, consider instance reuse
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26 inspector.next(cset);
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27 }
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28 };
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29 content.iterate(0, content.revisionCount() - 1, true, i);
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30 }
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31
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32 public List<Changeset> range(int start, int end) {
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33 final ArrayList<Changeset> rv = new ArrayList<Changeset>(end - start + 1);
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34 Revlog.Inspector i = new Revlog.Inspector() {
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36 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
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37 Changeset cset = Changeset.parse(data, 0, data.length);
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38 rv.add(cset);
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39 }
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40 };
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41 content.iterate(start, end, true, i);
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42 return rv;
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43 }
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45 public void range(final Changeset.Inspector inspector, final int... revisions) {
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46 if (revisions == null || revisions.length == 0) {
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47 return;
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48 }
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49 Revlog.Inspector i = new Revlog.Inspector() {
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50
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51 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
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52 if (Arrays.binarySearch(revisions, revisionNumber) >= 0) {
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53 Changeset cset = Changeset.parse(data, 0, data.length);
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54 inspector.next(cset);
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55 }
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56 }
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57 };
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58 Arrays.sort(revisions);
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59 content.iterate(revisions[0], revisions[revisions.length - 1], true, i);
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60 }
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61 }