org.bndtools.templating.jgit.EclipseGitProgressTransformer Maven / Gradle / Ivy
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org.bndtools.templating.gitrepo
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package org.bndtools.templating.jgit;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.jgit.lib.ProgressMonitor;
/** Create a new Git to Eclipse progress monitor. */
public class EclipseGitProgressTransformer implements ProgressMonitor {
private static final String EMPTY_STRING = ""; //$NON-NLS-1$
private final IProgressMonitor root;
private IProgressMonitor task;
private String msg;
private int lastWorked;
private int totalWork;
/**
* Create a new progress monitor.
*
* @param eclipseMonitor the Eclipse monitor we update.
*/
public EclipseGitProgressTransformer(final IProgressMonitor eclipseMonitor) {
root = eclipseMonitor;
}
@Override
public void start(final int totalTasks) {
root.beginTask(EMPTY_STRING, totalTasks * 1000);
}
@Override
public void beginTask(final String name, final int total) {
endTask();
msg = name;
lastWorked = 0;
totalWork = total;
task = SubMonitor.convert(root, 1000);
if (totalWork == UNKNOWN)
task.beginTask(EMPTY_STRING, IProgressMonitor.UNKNOWN);
else
task.beginTask(EMPTY_STRING, totalWork);
task.subTask(msg);
}
@Override
public void update(final int work) {
if (task == null)
return;
final int cmp = lastWorked + work;
if (totalWork == UNKNOWN && cmp > 0) {
if (lastWorked != cmp)
task.subTask(msg + ", " + cmp); //$NON-NLS-1$
} else if (totalWork <= 0) {
// Do nothing to update the task.
} else if (cmp * 100 / totalWork != lastWorked * 100 / totalWork) {
final StringBuilder m = new StringBuilder();
m.append(msg);
m.append(": "); //$NON-NLS-1$
while (m.length() < 25)
m.append(' ');
final String twstr = String.valueOf(totalWork);
String cmpstr = String.valueOf(cmp);
while (cmpstr.length() < twstr.length())
cmpstr = " " + cmpstr; //$NON-NLS-1$
final int pcnt = (cmp * 100 / totalWork);
if (pcnt < 100)
m.append(' ');
if (pcnt < 10)
m.append(' ');
m.append(pcnt);
m.append("% ("); //$NON-NLS-1$
m.append(cmpstr);
m.append("/"); //$NON-NLS-1$
m.append(twstr);
m.append(")"); //$NON-NLS-1$
task.subTask(m.toString());
}
lastWorked = cmp;
task.worked(work);
}
@Override
public void endTask() {
if (task != null) {
try {
task.done();
} finally {
task = null;
}
}
}
@Override
public boolean isCancelled() {
if (task != null)
return task.isCanceled();
return root.isCanceled();
}
}
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