/**
* @param db the repository
* @param in an {@link InputStream} providing the original content
* @param out the {@link OutputStream} into which the content of the pointer file should be
* written. That's the content which will be added to the git repository
* @throws IOException when the creation of the temporary file fails or when no {@link
* OutputStream} for this file can be created
*/
public CleanFilter(Repository db, InputStream in, OutputStream out) throws IOException {
super(in, out);
lfsUtil = new Lfs(db.getDirectory().toPath().resolve("lfs")); // $NON-NLS-1$
Files.createDirectories(lfsUtil.getLfsTmpDir());
tmpFile = lfsUtil.createTmpFile();
tmpOut = Files.newOutputStream(tmpFile, StandardOpenOption.CREATE);
this.dOut = new DigestOutputStream(tmpOut, Constants.newMessageDigest());
}
public int run() throws IOException {
try {
int b = in.read();
if (b != -1) {
dOut.write(b);
size++;
return 1;
} else {
dOut.close();
tmpOut.close();
LongObjectId loid = LongObjectId.fromRaw(dOut.getMessageDigest().digest());
Path mediaFile = lfsUtil.getMediaFile(loid);
if (Files.isRegularFile(mediaFile)) {
long fsSize = Files.size(mediaFile);
if (fsSize != size) {
throw new CorruptMediaFile(mediaFile, size, fsSize);
}
} else {
FileUtils.mkdirs(mediaFile.getParent().toFile(), true);
FileUtils.rename(tmpFile.toFile(), mediaFile.toFile());
}
LfsPointer lfsPointer = new LfsPointer(loid, size);
lfsPointer.encode(out);
out.close();
return -1;
}
} catch (IOException e) {
out.close();
dOut.close();
tmpOut.close();
throw e;
}
}
