sadanand48 commented on code in PR #8477:
URL: https://github.com/apache/ozone/pull/8477#discussion_r2158219491
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hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/utils/Archiver.java:
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@@ -111,6 +114,34 @@ public static long includeFile(File file, String entryName,
return bytes;
}
+ /**
+ * Creates a hardlink for the given file in a temporary directory, adds it
+ * as an entry in the archive, and includes its contents in the archive
output.
+ * The temporary hardlink is deleted after processing.
+ */
+ public static long linkAndIncludeFile(File file, String entryName,
+ ArchiveOutputStream<TarArchiveEntry> archiveOutput, Path tmpDir) throws
IOException {
+ File link = tmpDir.resolve(entryName).toFile();
+ long bytes = 0;
+ try {
+ Files.createLink(link.toPath(), file.toPath());
+ TarArchiveEntry entry = archiveOutput.createArchiveEntry(link,
entryName);
+ archiveOutput.putArchiveEntry(entry);
+ try (InputStream input = Files.newInputStream(link.toPath())) {
+ bytes = IOUtils.copyLarge(input, archiveOutput);
+ }
+ archiveOutput.closeArchiveEntry();
+ } catch (IOException ioe) {
+ LOG.error("Couldn't create hardlink for file {} while including it in
tarball.",
Review Comment:
done. threw the exception here.
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