Function ce_write_entry

read-cache.c:2638–2689

}

static int ce_write_entry(struct hashfile *f, struct cache_entry *ce,
			  struct strbuf *previous_name, struct ondisk_cache_entry *ondisk)
{
	int size;
	unsigned int saved_namelen;
	int stripped_name = 0;
	static unsigned char padding[8] = { 0x00 };

	if (ce->ce_flags & CE_STRIP_NAME) {
		saved_namelen = ce_namelen(ce);
		ce->ce_namelen = 0;
		stripped_name = 1;
	}

	size = offsetof(struct ondisk_cache_entry,data) + ondisk_data_size(ce->ce_flags, 0);

	if (!previous_name) {
		int len = ce_namelen(ce);
		copy_cache_entry_to_ondisk(ondisk, ce);
		hashwrite(f, ondisk, size);
		hashwrite(f, ce->name, len);
		hashwrite(f, padding, align_padding_size(size, len));
	} else {
		int common, to_remove;
		uint8_t prefix_size;
		unsigned char to_remove_vi[16];

		for (common = 0;
		     (common < previous_name->len &&
		      ce->name[common] &&
		      ce->name[common] == previous_name->buf[common]);
		     common++)
			; /* still matching */
		to_remove = previous_name->len - common;
		prefix_size = encode_varint(to_remove, to_remove_vi);

		copy_cache_entry_to_ondisk(ondisk, ce);
		hashwrite(f, ondisk, size);
		hashwrite(f, to_remove_vi, prefix_size);
		hashwrite(f, ce->name + common, ce_namelen(ce) - common);
		hashwrite(f, padding, 1);

		strbuf_splice(previous_name, common, to_remove,
			      ce->name + common, ce_namelen(ce) - common);
	}
	if (stripped_name) {
		ce->ce_namelen = saved_namelen;
		ce->ce_flags &= ~CE_STRIP_NAME;
	}

	return 0;
}

/*
 * This function verifies if index_state has the correct sha1 of the