/** Adds a new file entry to the ZIP output stream. */
void addFile(ZipOutputStream zos, File file) throws IOException {
String name = file.getPath();
boolean isDir = file.isDirectory();
if (isDir) {
name = name.endsWith(File.separator) ? name : (name + File.separator);
}
name = entryName(name);
if (name.equals("") || name.equals(".") || name.equals(zname)) {
return;
} else if ((name.equals(MANIFEST_DIR) || name.equals(MANIFEST_NAME)) && !Mflag) {
if (vflag) {
output(formatMsg("out.ignore.entry", name));
}
return;
}
long size = isDir ? 0 : file.length();
if (vflag) {
out.print(formatMsg("out.adding", name));
}
ZipEntry e = new ZipEntry(name);
e.setTime(file.lastModified());
if (size == 0) {
e.setMethod(ZipEntry.STORED);
e.setSize(0);
e.setCrc(0);
} else if (flag0) {
crc32File(e, file);
}
zos.putNextEntry(e);
if (!isDir) {
copy(file, zos);
}
zos.closeEntry();
/* report how much compression occurred. */
if (vflag) {
size = e.getSize();
long csize = e.getCompressedSize();
out.print(formatMsg2("out.size", String.valueOf(size), String.valueOf(csize)));
if (e.getMethod() == ZipEntry.DEFLATED) {
long ratio = 0;
if (size != 0) {
ratio = ((size - csize) * 100) / size;
}
output(formatMsg("out.deflated", String.valueOf(ratio)));
} else {
output(getMsg("out.stored"));
}
}
}
/** Updates an existing jar file. */
boolean update(InputStream in, OutputStream out, InputStream newManifest, JarIndex jarIndex)
throws IOException {
ZipInputStream zis = new ZipInputStream(in);
ZipOutputStream zos = new JarOutputStream(out);
ZipEntry e = null;
boolean foundManifest = false;
boolean updateOk = true;
if (jarIndex != null) {
addIndex(jarIndex, zos);
}
// put the old entries first, replace if necessary
while ((e = zis.getNextEntry()) != null) {
String name = e.getName();
boolean isManifestEntry = equalsIgnoreCase(name, MANIFEST_NAME);
if ((jarIndex != null && equalsIgnoreCase(name, INDEX_NAME)) || (Mflag && isManifestEntry)) {
continue;
} else if (isManifestEntry && ((newManifest != null) || (ename != null) || (pname != null))) {
foundManifest = true;
if (newManifest != null) {
// Don't read from the newManifest InputStream, as we
// might need it below, and we can't re-read the same data
// twice.
FileInputStream fis = new FileInputStream(mname);
boolean ambiguous = isAmbiguousMainClass(new Manifest(fis));
fis.close();
if (ambiguous) {
return false;
}
}
// Update the manifest.
Manifest old = new Manifest(zis);
if (newManifest != null) {
old.read(newManifest);
}
if (!updateManifest(old, zos)) {
return false;
}
} else {
if (!entryMap.containsKey(name)) { // copy the old stuff
// do our own compression
ZipEntry e2 = new ZipEntry(name);
e2.setMethod(e.getMethod());
e2.setTime(e.getTime());
e2.setComment(e.getComment());
e2.setExtra(e.getExtra());
if (e.getMethod() == ZipEntry.STORED) {
e2.setSize(e.getSize());
e2.setCrc(e.getCrc());
}
zos.putNextEntry(e2);
copy(zis, zos);
} else { // replace with the new files
File f = entryMap.get(name);
addFile(zos, f);
entryMap.remove(name);
entries.remove(f);
}
}
}
// add the remaining new files
for (File f : entries) {
addFile(zos, f);
}
if (!foundManifest) {
if (newManifest != null) {
Manifest m = new Manifest(newManifest);
updateOk = !isAmbiguousMainClass(m);
if (updateOk) {
if (!updateManifest(m, zos)) {
updateOk = false;
}
}
} else if (ename != null || pname != null) {
if (!updateManifest(new Manifest(), zos)) {
updateOk = false;
}
}
}
zis.close();
zos.close();
return updateOk;
}
/** Updates a ZipEntry which describes the data read by this output stream, in STORED mode. */
public void updateEntry(ZipEntry e) {
e.setMethod(ZipEntry.STORED);
e.setSize(n);
e.setCrc(crc.getValue());
}