private boolean renameLog(RefUpdate src, RefUpdate dst) {
File srcLog = refdb.getLogWriter().logFor(src.getName());
File dstLog = refdb.getLogWriter().logFor(dst.getName());
if (!srcLog.exists()) return true;
if (!rename(srcLog, dstLog)) return false;
try {
final int levels = RefDirectory.levelsIn(src.getName()) - 2;
RefDirectory.delete(srcLog, levels);
return true;
} catch (IOException e) {
rename(dstLog, srcLog);
return false;
}
}
private boolean linkHEAD(RefUpdate target) {
try {
RefUpdate u = refdb.newUpdate(Constants.HEAD, false);
u.disableRefLog();
switch (u.link(target.getName())) {
case NEW:
case FORCED:
case NO_CHANGE:
return true;
default:
return false;
}
} catch (IOException e) {
return false;
}
}