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/*
* Copyright (C) 2019, Matthias Sohn <matthias.sohn@sap.com> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.junit.time;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.FileTime;
import java.time.Instant;
import org.eclipse.jgit.util.FS;
/**
* Utility methods for handling timestamps
*
* @since 5.1.9
*/
public class TimeUtil {
/**
* Set the lastModified time of a given file by adding a given offset to the
* current lastModified time
*
* @param path
* path of a file to set last modified
* @param offsetMillis
* offset in milliseconds, if negative the new lastModified time
* is offset before the original lastModified time, otherwise
* after the original time
* @return the new lastModified time
*/
public static Instant setLastModifiedWithOffset(Path path,
long offsetMillis) {
Instant mTime = FS.DETECTED.lastModifiedInstant(path)
.plusMillis(offsetMillis);
try {
Files.setLastModifiedTime(path, FileTime.from(mTime));
return mTime;
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
/**
* Set the lastModified time of file a to the one from file b
*
* @param a
* file to set lastModified time
* @param b
* file to read lastModified time from
*/
public static void setLastModifiedOf(Path a, Path b) {
Instant mTime = FS.DETECTED.lastModifiedInstant(b);
try {
Files.setLastModifiedTime(a, FileTime.from(mTime));
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
}
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