Example usage for org.eclipse.jgit.treewalk.filter InterIndexDiffFilter InterIndexDiffFilter

Introduction

In this page you can find the example usage for org.eclipse.jgit.treewalk.filter InterIndexDiffFilter InterIndexDiffFilter.

Prototype

InterIndexDiffFilter

Source Link

Usage

From source file:org.eclipse.egit.core.internal.indexdiff.IndexDiffCacheEntry.java

License:Open Source License

/**
 * Refreshes all resources that changed in the index since the last call to
 * this method. This is suitable for incremental updates on index changed
 * events/*from  w w  w  .  jav a 2s .co m*/
 *
 * For bare repositories this does nothing.
 */
private void refreshIndexDelta() {
    if (repository.isBare())
        return;

    try {
        DirCache currentIndex = repository.readDirCache();
        DirCache oldIndex = lastIndex;

        lastIndex = currentIndex;

        if (oldIndex == null) {
            refresh(); // full refresh in case we have no data to compare.
            return;
        }

        Set<String> paths = new TreeSet<String>();
        TreeWalk walk = new TreeWalk(repository);

        try {
            walk.addTree(new DirCacheIterator(oldIndex));
            walk.addTree(new DirCacheIterator(currentIndex));
            walk.setFilter(new InterIndexDiffFilter());

            while (walk.next()) {
                if (walk.isSubtree())
                    walk.enterSubtree();
                else
                    paths.add(walk.getPathString());
            }
        } finally {
            walk.release();
        }

        if (!paths.isEmpty())
            refreshFiles(paths);

    } catch (IOException ex) {
        Activator.error(
                MessageFormat.format(CoreText.IndexDiffCacheEntry_errorCalculatingIndexDelta, repository), ex);
        scheduleReloadJob("Exception while calculating index delta, doing full reload instead"); //$NON-NLS-1$
    }
}

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