Adding Git source, NetBeans project files, GPL v2 LICENSE, ant build file.

[nbgit.git] / src / org / netbeans / modules / git / ui / pull / FetchAction.java

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package org.netbeans.modules.git.ui.pull;


import java.awt.event.ActionEvent;
import java.io.File;
import java.util.List;
import javax.swing.Action;
import org.netbeans.modules.git.Git;
import org.netbeans.modules.git.GitException;
import org.netbeans.modules.git.GitProgressSupport;
import org.netbeans.modules.git.OutputLogger;
import org.netbeans.modules.git.ui.actions.ContextAction;
import org.netbeans.modules.git.util.GitCommand;
import org.netbeans.modules.git.util.GitUtils;
import org.netbeans.modules.versioning.spi.VCSContext;
import org.openide.DialogDisplayer;
import org.openide.NotifyDescriptor;
import org.openide.util.NbBundle;
import org.openide.util.RequestProcessor;

/**
 * Fetch action for Git: 
 * git fetch - launch hg view to view the dependency tree for the repository
 * Pull changes from a remote repository, merge new changes if needed.
 * This finds all changes from the repository at the specified path
 * or URL and adds them to the local repository.
 * 
 * If the pulled changes add a new head, the head is automatically
 * merged, and the result of the merge is committed.  Otherwise, the
 * working directory is updated.
 * 
 * @author John Rice
 */
public class FetchAction extends ContextAction {
 
    private final VCSContext context;

    public FetchAction(String name, VCSContext context) {
        this.context = context;
        putValue(Action.NAME, name);
    }
    
    public void performAction(ActionEvent e) {
        final File root = GitUtils.getRootFile(context);
        if (root == null) return;
        
        RequestProcessor rp = Git.getInstance().getRequestProcessor(root);
        GitProgressSupport support = new GitProgressSupport() {
            public void perform() { performFetch(root, this.getLogger()); } };

        support.start(rp, root.getAbsolutePath(), org.openide.util.NbBundle.getMessage(FetchAction.class, "MSG_FETCH_PROGRESS")); // NOI18N
    }

    static void performFetch(File root, OutputLogger logger) {
        try {
            logger.outputInRed(NbBundle.getMessage(FetchAction.class, "MSG_FETCH_TITLE")); // NOI18N
            logger.outputInRed(NbBundle.getMessage(FetchAction.class, "MSG_FETCH_TITLE_SEP")); // NOI18N
            
            logger.outputInRed(NbBundle.getMessage(FetchAction.class, 
                    "MSG_FETCH_LAUNCH_INFO", root.getAbsolutePath())); // NOI18N
            
            List<String> list;
            list = GitCommand.doFetch(root, logger);
            
            if (list != null && !list.isEmpty()) {
                logger.output(GitUtils.replaceHttpPassword(list));
            }
        } catch (GitException ex) {
            NotifyDescriptor.Exception e = new NotifyDescriptor.Exception(ex);
            DialogDisplayer.getDefault().notifyLater(e);
        }finally{
            logger.outputInRed(NbBundle.getMessage(FetchAction.class, "MSG_FETCH_DONE")); // NOI18N
            logger.output(""); // NOI18N
        }
    }

    public boolean isEnabled() {
        return GitUtils.getRootFile(context) != null;
    } 
    
}