// mkdir.cxx

#include "dataset_util/mkdir.h"
#include <sys/types.h>
#include <sys/stat.h>
#include "dataset_util/FileStatus.h"

using std::string;

//**********************************************************************

// Create directory.

int mkdir(string dir) {
  mode_t mode = S_IRUSR | S_IWUSR | S_IXUSR |
                S_IRGRP | S_IWGRP | S_IXGRP |
                S_IROTH | S_IWOTH | S_IXOTH;
  return mkdir(dir.c_str(),  mode);
}

//**********************************************************************

// Create directory and parents.

int mkfulldir(string dir) {
  // Find the position of the last / or series of /'s.
  string::size_type ipos = dir.rfind('/');
  if ( ipos != string::npos )
  while ( ipos>0 && dir[ipos-1]=='/' ) --ipos;
  // If there a directory above this one and it does not exist, try to
  // create it.
  // Exit with error if it is not there and cannot be created.
  if ( ipos!=string::npos && ipos>0 ) {
    string superdir = dir.substr(0, ipos);
    FileStatus sstat(superdir);
    if ( ! sstat.exists() ) {
      mkfulldir(superdir);
      sstat.update();
    }
    if ( ! sstat.exists() ) return 101;
    if ( ! sstat.is_directory() ) return 102;
    if ( ! sstat.is_writeable() ) return 103;
  }
  // Create the requested directory.
  return mkdir(dir);
}

//**********************************************************************