Function cf_CopyFile

cfile/cfile.cpp:832–868

Copies a file. Returns TRUE if copied ok. Returns FALSE if error opening either file. Throws an exception of type (cfile_error *) if the OS returns an error on read or write

// Copies a file.  Returns TRUE if copied ok.  Returns FALSE if error opening either file.
// Throws an exception of type (cfile_error *) if the OS returns an error on read or write
bool cf_CopyFile(const std::filesystem::path &dest, const std::filesystem::path &src, int copytime) {
  CFILE *infile, *outfile;
  if (!stricmp(dest.u8string().c_str(), src.u8string().c_str()))
    return true; // don't copy files if they are the same
  infile = (CFILE *)cfopen(src, "rb");
  if (!infile)
    return false;
  outfile = (CFILE *)cfopen(dest, "wb");
  if (!outfile) {
    cfclose(infile);
    return false;
  }
  int progress = 0;
  int readcount = 0;
#define COPY_CHUNK_SIZE 5000
  uint8_t copybuf[COPY_CHUNK_SIZE];
  while (!cfeof(infile)) {
    // uint8_t c;

    if (progress + COPY_CHUNK_SIZE <= infile->size) {
      readcount = COPY_CHUNK_SIZE;
    } else {
      readcount = infile->size - progress;
    }
    cf_ReadBytes(copybuf, readcount, infile);
    cf_WriteBytes(copybuf, readcount, outfile);
    progress += readcount;
    // c=cf_ReadByte (infile);
    // cf_WriteByte (outfile,c);
  }
  cfclose(infile);
  cfclose(outfile);
  if (!infile->lib_offset && copytime) {
    cf_CopyFileTime(dest, src);
  }
  return true;
}

// Checks to see if two files are different.
// Returns TRUE if the files are different, or FALSE if they are the same.