/** Outputs the differences found between the archive and the file system. */
private void diff() throws IOException {
TarEntry entry;
InputStream in = null;
TarInputStream tin;
File file;
if ((in = openFileRead(archive)) == null) {
exit(1);
}
if (decompress != 0) {
in = wrapInputStream(in);
}
tin = new TarInputStream(in);
while ((entry = tin.getNextEntry()) != null) {
file = new File(entry.getName());
if (!file.exists()) {
out(file + ": Warning: No such file or directory");
continue;
}
if (file.lastModified() != entry.getModTime().getTime()) {
out(file + ": Mod time is different");
}
if (file.length() != entry.getSize()) {
out(file + ": Size is different");
}
// TODO check file mode
// TODO check file ownership
}
}
// TODO
private void update(File[] files) throws IOException {
InputStream in;
TarInputStream tin;
TarEntry entry;
TreeMap<String, Long> entries = new TreeMap<String, Long>();
if ((in = openFileRead(archive)) == null) {
fatal(" ", 1);
}
if (decompress != 0) {
in = wrapInputStream(in);
}
tin = new TarInputStream(in);
while ((entry = tin.getNextEntry()) != null) {
entries.put(entry.getName(), entry.getModTime().getTime());
}
tin.close();
long etime, ftime;
ArrayList<File> list = new ArrayList<File>();
for (File file : files) {
if (entries.containsKey(file.getPath())) {
etime = entries.get(file.getPath());
ftime = file.lastModified();
if (etime >= ftime) {
continue;
}
}
list.add(file);
}
insert(list.toArray(files));
}
/**
* Extract entries from an archive.
*
* <p>TODO Need to parse Path for choosing specific files/directories either by direct naming or
* by wildcard patterns. TODO Read list of entries to extract from FileList if its set.
*/
private void extract() throws IOException {
TarEntry entry;
InputStream in = null;
OutputStream out;
TarInputStream tin;
File file;
if (archive != null) {
if ((in = openFileRead(archive)) == null) {
fatal(" ", 1);
}
} else {
in = stdin;
}
if (decompress != 0) {
in = wrapInputStream(in);
}
tin = new TarInputStream(in);
if (use_stdout) {
out = stdout;
}
while ((entry = tin.getNextEntry()) != null) {
notice(entry.getName());
file = new File(entry.getName());
if (entry.isDirectory()) {
if (!file.exists()) {
file.mkdirs();
}
continue;
} else {
if (file.exists()) {
if (keepOld || (keepNew && (file.lastModified() >= entry.getModTime().getTime()))) {
continue;
}
if (backup) {
file.renameTo(new File(file.getPath() + suffix));
}
}
}
if ((out = openFileWrite(file, true, true)) == null) {
continue;
}
tin.copyEntryContents(out);
out.close();
}
tin.close();
}