GitPushRejectedDetector.java

package zielu.gittoolbox.push;

import com.intellij.openapi.util.Key;
import git4idea.commands.GitLineHandlerListener;
import java.util.ArrayList;
import java.util.Collection;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class GitPushRejectedDetector implements GitLineHandlerListener {

    private static final Pattern REJECTED_PATTERN = Pattern.compile("\\s+! \\[rejected\\]\\s+(\\S+) -> (\\S+) .*");

    private final Collection<RejectedRef> myRejectedRefs = new ArrayList<RejectedRef>();

    @Override
    public void onLineAvailable(String line, Key outputType) {
        Matcher matcher = REJECTED_PATTERN.matcher(line);
        if (matcher.matches()) {
            String src = matcher.group(1);
            String dst = matcher.group(2);
            myRejectedRefs.add(new RejectedRef(src, dst));
        }
    }

    @Override
    public void processTerminated(int exitCode) {
    }

    @Override
    public void startFailed(Throwable exception) {
    }

    public boolean rejected() {
        return !myRejectedRefs.isEmpty();
    }

    public Collection<String> getRejectedBranches() {
        Collection<String> branches = new ArrayList<String>(myRejectedRefs.size());
        for (RejectedRef rejectedRef : myRejectedRefs) {
            branches.add(rejectedRef.mySource);
        }
        return branches;
    }

    static class RejectedRef {
        private final String mySource;
        private final String myDestination;

        RejectedRef(String source, String destination) {
            myDestination = destination;
            mySource = source;
        }
    }
}