CMake/Utilities/cmlibarchive/examples/minitar/notes

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create(const char* filename)
{
struct archive *a;
a = archive_write_new();
// pick a compression type
archive_write_set_compression_bzip2(a);
archive_write_set_compression_compress(a);
archive_write_set_compression_gzip(a);
archive_write_set_compression_none(a);
// what does this do???
archive_write_set_format_ustar(a); // is this what we want?
// maybe this:
archive_write_set_format_pax(a);
archive_write_open_file(a, filename);
struct archive* disk = archive_read_disk_new();
archive_read_disk_set_standard_lookup(disk);
while (*argv != NULL)
{
struct tree *t = tree_open(*argv);
while (tree_next(t))
{
entry = archive_entry_new();
archive_entry_set_pathname(entry, tree_current_path(t));
archive_read_disk_entry_from_file(disk, entry, -1,
tree_current_stat(t));
if (verbose)
{
msg("a ");
msg(tree_current_path(t));
}
archive_write_header(a, entry);
int fd = open(tree_current_access_path(t), O_RDONLY);
char buff[16384];
len = read(fd, buff, sizeof(buff));
while (len > 0)
{
archive_write_data(a, buff, len);
len = read(fd, buff, sizeof(buff));
}
close(fd);
archive_entry_free(entry);
if (verbose)
msg("\n");
}
}
}