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Add gzip support to Tar helper

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This commit is contained in:
Shane Kilkelly
2021-01-14 13:54:01 +00:00
parent 169de1fead
commit 8496871ab2
1 changed files with 40 additions and 0 deletions
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40
services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/util/Tar.java
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@@ -6,6 +6,8 @@ import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
import org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream;
import org.apache.commons.compress.compressors.bzip2.BZip2CompressorOutputStream;
import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;
import org.apache.commons.compress.compressors.gzip.GzipCompressorOutputStream;
import org.apache.commons.compress.utils.IOUtils;
import org.apache.commons.io.FileUtils;
@@ -23,6 +25,44 @@ import java.nio.file.Paths;
* Caller is responsible for all resources.
*/
public class Tar {
public static class gzip {
public static InputStream zip(
File fileOrDir
) throws IOException {
return zip(fileOrDir, null);
}
public static InputStream zip(
File fileOrDir,
long[] sizePtr
) throws IOException {
File tmp = File.createTempFile(fileOrDir.getName(), ".tar.gz");
tmp.deleteOnExit();
OutputStream target = new FileOutputStream(tmp);
/* Closes target */
try (OutputStream gz = new GzipCompressorOutputStream(target)) {
tarTo(fileOrDir, gz);
} catch (IOException e) {
tmp.delete();
throw e;
}
if (sizePtr != null) {
sizePtr[0] = tmp.length();
}
return new DeletingFileInputStream(tmp);
}
public static void unzip(
InputStream targz,
File parentDir
) throws IOException {
/* GzipCompressorInputStream does not need closing
Closing it would close targz which we should not do */
InputStream tar = new GzipCompressorInputStream(targz);
untar(tar, parentDir);
}
}
public static class bz2 {