Esempio n. 1
0
void bitmap_writer_finish(struct pack_idx_entry **index,
                          uint32_t index_nr,
                          const char *filename,
                          uint16_t options)
{
    static char tmp_file[PATH_MAX];
    static uint16_t default_version = 1;
    static uint16_t flags = BITMAP_OPT_FULL_DAG;
    struct sha1file *f;

    struct bitmap_disk_header header;

    int fd = odb_mkstemp(tmp_file, sizeof(tmp_file), "pack/tmp_bitmap_XXXXXX");

    if (fd < 0)
        die_errno("unable to create '%s'", tmp_file);
    f = sha1fd(fd, tmp_file);

    memcpy(header.magic, BITMAP_IDX_SIGNATURE, sizeof(BITMAP_IDX_SIGNATURE));
    header.version = htons(default_version);
    header.options = htons(flags | options);
    header.entry_count = htonl(writer.selected_nr);
    hashcpy(header.checksum, writer.pack_checksum);

    sha1write(f, &header, sizeof(header));
    dump_bitmap(f, writer.commits);
    dump_bitmap(f, writer.trees);
    dump_bitmap(f, writer.blobs);
    dump_bitmap(f, writer.tags);
    write_selected_commits_v1(f, index, index_nr);

    if (options & BITMAP_OPT_HASH_CACHE)
        write_hash_cache(f, index, index_nr);

    sha1close(f, NULL, CSUM_FSYNC);

    if (adjust_shared_perm(tmp_file))
        die_errno("unable to make temporary bitmap file readable");

    if (rename(tmp_file, filename))
        die_errno("unable to rename temporary bitmap file to '%s'", filename);
}
Esempio n. 2
0
void bitmap_writer_finish(struct pack_idx_entry **index,
			  uint32_t index_nr,
			  const char *filename,
			  uint16_t options)
{
	static uint16_t default_version = 1;
	static uint16_t flags = BITMAP_OPT_FULL_DAG;
	struct strbuf tmp_file = STRBUF_INIT;
	struct hashfile *f;

	struct bitmap_disk_header header;

	int fd = odb_mkstemp(&tmp_file, "pack/tmp_bitmap_XXXXXX");

	f = hashfd(fd, tmp_file.buf);

	memcpy(header.magic, BITMAP_IDX_SIGNATURE, sizeof(BITMAP_IDX_SIGNATURE));
	header.version = htons(default_version);
	header.options = htons(flags | options);
	header.entry_count = htonl(writer.selected_nr);
	hashcpy(header.checksum, writer.pack_checksum);

	hashwrite(f, &header, sizeof(header) - GIT_MAX_RAWSZ + the_hash_algo->rawsz);
	dump_bitmap(f, writer.commits);
	dump_bitmap(f, writer.trees);
	dump_bitmap(f, writer.blobs);
	dump_bitmap(f, writer.tags);
	write_selected_commits_v1(f, index, index_nr);

	if (options & BITMAP_OPT_HASH_CACHE)
		write_hash_cache(f, index, index_nr);

	finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_FSYNC | CSUM_CLOSE);

	if (adjust_shared_perm(tmp_file.buf))
		die_errno("unable to make temporary bitmap file readable");

	if (rename(tmp_file.buf, filename))
		die_errno("unable to rename temporary bitmap file to '%s'", filename);

	strbuf_release(&tmp_file);
}
Esempio n. 3
0
static const char *open_pack_file(const char *pack_name)
{
	if (from_stdin) {
		input_fd = 0;
		if (!pack_name) {
			static char tmpfile[PATH_MAX];
			output_fd = odb_mkstemp(tmpfile, sizeof(tmpfile),
						"pack/tmp_pack_XXXXXX");
			pack_name = xstrdup(tmpfile);
		} else
			output_fd = open(pack_name, O_CREAT|O_EXCL|O_RDWR, 0600);
		if (output_fd < 0)
			die_errno("unable to create '%s'", pack_name);
		pack_fd = output_fd;
	} else {
		input_fd = open(pack_name, O_RDONLY);
		if (input_fd < 0)
			die_errno("cannot open packfile '%s'", pack_name);
		output_fd = -1;
		pack_fd = input_fd;
	}
	git_SHA1_Init(&input_ctx);
	return pack_name;
}