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/*
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* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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package com.nokia.maven.scm.provider.hg.command.update;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import org.apache.maven.scm.ScmException;
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import org.apache.maven.scm.ScmFile;
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import org.apache.maven.scm.ScmFileSet;
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import org.apache.maven.scm.ScmFileStatus;
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import org.apache.maven.scm.ScmResult;
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import org.apache.maven.scm.ScmVersion;
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import org.apache.maven.scm.command.update.UpdateScmResult;
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import org.apache.maven.scm.command.update.UpdateScmResultWithRevision;
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import org.apache.maven.scm.provider.ScmProviderRepository;
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import org.apache.maven.scm.provider.hg.HgUtils;
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import org.apache.maven.scm.provider.hg.command.HgCommandConstants;
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import org.apache.maven.scm.provider.hg.command.HgConsumer;
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import org.apache.maven.scm.provider.hg.command.diff.HgDiffConsumer;
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import org.codehaus.plexus.util.StringUtils;
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import com.nokia.maven.scm.provider.hg.HgUtilsInternal;
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/**
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*/
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public class HgUpdateCommand extends
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org.apache.maven.scm.provider.hg.command.update.HgUpdateCommand {
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/** {@inheritDoc} */
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@SuppressWarnings("unchecked")
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protected UpdateScmResult executeUpdateCommand(ScmProviderRepository repo, ScmFileSet fileSet,
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ScmVersion tag) throws ScmException {
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File workingDir = fileSet.getBasedir();
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// Find changes from last revision
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long previousRevision = HgUtilsInternal.getCurrentRevisionNumber(getLogger(), workingDir);
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// Update branch
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String[] updateCmd = new String[] { "update", HgCommandConstants.REVISION_OPTION,
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tag != null && !StringUtils.isEmpty(tag.getName()) ? tag.getName() : "tip" };
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ScmResult updateResult = HgUtils.execute(new HgConsumer(getLogger()), getLogger(), workingDir, updateCmd);
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if (!updateResult.isSuccess()) {
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return new UpdateScmResult(null, null, updateResult);
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}
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// Find changes from last revision
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long currentRevision = HgUtilsInternal.getCurrentRevisionNumber(getLogger(),
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workingDir);
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// No point of calculating a delta if nothing has been updated.
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getLogger().debug("Changeset before update: " + String.format("%012x", previousRevision));
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getLogger().debug("Changeset after update: " + String.format("%012x", currentRevision));
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if (previousRevision == currentRevision) {
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return new UpdateScmResultWithRevision(new ArrayList<ScmFile>(), new ArrayList(), String
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.valueOf(currentRevision), updateResult);
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}
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List<ScmFile> updatedFiles = new ArrayList<ScmFile>();
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List changes = new ArrayList();
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String[] diffCmd = null;
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if (currentRevision == 0) {
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diffCmd = new String[] { HgCommandConstants.DIFF_CMD, "-c", "" + String.format("%012x", currentRevision)};
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} else {
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diffCmd = new String[] { HgCommandConstants.DIFF_CMD,
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HgCommandConstants.REVISION_OPTION, "" + String.format("%012x", previousRevision),
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HgCommandConstants.REVISION_OPTION, "" + String.format("%012x", currentRevision)};
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}
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HgDiffConsumer diffConsumer = new HgDiffConsumer(getLogger(), workingDir);
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updateResult = HgUtils.execute(diffConsumer, getLogger(), workingDir, diffCmd);
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// Now translate between diff and update file status
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List<ScmFile> diffFiles = diffConsumer.getChangedFiles();
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Map diffChanges = diffConsumer.getDifferences();
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for (ScmFile diffFile : diffFiles) {
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changes.add(diffChanges.get(diffFile.getPath()));
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if (diffFile.getStatus() == ScmFileStatus.MODIFIED) {
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updatedFiles.add(new ScmFile(diffFile.getPath(), ScmFileStatus.PATCHED));
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} else {
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updatedFiles.add(diffFile);
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}
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}
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return new UpdateScmResultWithRevision(updatedFiles, changes, String
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.valueOf(currentRevision), new ScmResult(updateResult.getCommandLine(),
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updateResult.getCommandOutput(), updateResult.getProviderMessage(), true));
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}
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}
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