66 lines
2.2 KiB
Java
66 lines
2.2 KiB
Java
/*
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* Copyright (C) 2018 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.copybara;
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.ImmutableSet;
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import com.google.common.collect.Iterables;
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import com.google.copybara.ChangeVisitable.ChangesVisitor;
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import com.google.copybara.ChangeVisitable.VisitResult;
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import com.google.copybara.Destination.DestinationStatus;
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import java.nio.file.PathMatcher;
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import java.nio.file.Paths;
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import javax.annotation.Nullable;
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/**
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* A visitor that computes the {@link DestinationStatus} matching the actual files affected by
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* the changes with the destination files glob.
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*/
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public class DestinationStatusVisitor implements ChangesVisitor {
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private final PathMatcher pathMatcher;
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private final String labelName;
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private DestinationStatus destinationStatus = null;
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public DestinationStatusVisitor(PathMatcher pathMatcher, String labelName) {
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this.pathMatcher = pathMatcher;
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this.labelName = labelName;
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}
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@Override
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public VisitResult visit(Change<? extends Revision> change) {
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ImmutableSet<String> changeFiles = change.getChangeFiles();
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if (changeFiles != null) {
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if (change.getLabels().containsKey(labelName)) {
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for (String file : changeFiles) {
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if (pathMatcher.matches(Paths.get('/' + file))) {
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String lastRev = Iterables.getLast(change.getLabels().get(labelName));
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destinationStatus = new DestinationStatus(lastRev, ImmutableList.of());
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return VisitResult.TERMINATE;
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}
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}
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}
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}
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return VisitResult.CONTINUE;
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}
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@Nullable
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public DestinationStatus getDestinationStatus() {
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return destinationStatus;
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}
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}
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