// Implement the 'x' operation. This function extracts files back to the file
// system.
static void doExtract(StringRef Name, object::Archive::child_iterator I) {
// Retain the original mode.
sys::fs::perms Mode = I->getAccessMode();
SmallString<128> Storage = Name;
int FD;
failIfError(
sys::fs::openFileForWrite(Storage.c_str(), FD, sys::fs::F_None, Mode),
Storage.c_str());
{
raw_fd_ostream file(FD, false);
// Get the data and its length
StringRef Data = I->getBuffer();
// Write the data.
file.write(Data.data(), Data.size());
}
// If we're supposed to retain the original modification times, etc. do so
// now.
if (OriginalDates)
failIfError(
sys::fs::setLastModificationAndAccessTime(FD, I->getLastModified()));
if (close(FD))
fail("Could not close the file");
}
// Implement the 't' operation. This function prints out just
// the file names of each of the members. However, if verbose mode is requested
// ('v' modifier) then the file type, permission mode, user, group, size, and
// modification time are also printed.
static void doDisplayTable(StringRef Name, object::Archive::child_iterator I) {
if (Verbose) {
sys::fs::perms Mode = I->getAccessMode();
printMode((Mode >> 6) & 007);
printMode((Mode >> 3) & 007);
printMode(Mode & 007);
outs() << ' ' << I->getUID();
outs() << '/' << I->getGID();
outs() << ' ' << format("%6llu", I->getSize());
outs() << ' ' << I->getLastModified().str();
outs() << ' ';
}
outs() << Name << "\n";
}
// Implements the 'p' operation. This function traverses the archive
// looking for members that match the path list.
static void doPrint(StringRef Name, object::Archive::child_iterator I) {
if (Verbose)
outs() << "Printing " << Name << "\n";
StringRef Data = I->getBuffer();
outs().write(Data.data(), Data.size());
}
void addMember(std::vector<NewArchiveIterator> &Members,
object::Archive::child_iterator I, StringRef Name,
int Pos = -1) {
if (Thin && !I->getParent()->isThin())
fail("Cannot convert a regular archive to a thin one");
NewArchiveIterator NI(I, Name);
if (Pos == -1)
Members.push_back(NI);
else
Members[Pos] = NI;
}
static InsertAction
computeInsertAction(ArchiveOperation Operation,
object::Archive::child_iterator I, StringRef Name,
std::vector<std::string>::iterator &Pos) {
if (Operation == QuickAppend || Members.empty())
return IA_AddOldMember;
std::vector<std::string>::iterator MI = std::find_if(
Members.begin(), Members.end(),
[Name](StringRef Path) {
return Name == sys::path::filename(Path);
});
if (MI == Members.end())
return IA_AddOldMember;
Pos = MI;
if (Operation == Delete)
return IA_Delete;
if (Operation == Move)
return IA_MoveOldMember;
if (Operation == ReplaceOrInsert) {
StringRef PosName = sys::path::filename(RelPos);
if (!OnlyUpdate) {
if (PosName.empty())
return IA_AddNewMeber;
return IA_MoveNewMember;
}
// We could try to optimize this to a fstat, but it is not a common
// operation.
sys::fs::file_status Status;
failIfError(sys::fs::status(*MI, Status), *MI);
if (Status.getLastModificationTime() < I->getLastModified()) {
if (PosName.empty())
return IA_AddOldMember;
return IA_MoveOldMember;
}
if (PosName.empty())
return IA_AddNewMeber;
return IA_MoveNewMember;
}
llvm_unreachable("No such operation");
}