Function write_entry

entry.c:283–422

Note: ca is used (and required) iff the entry refers to a regular file. */

/* Note: ca is used (and required) iff the entry refers to a regular file. */
static int write_entry(struct cache_entry *ce, char *path, struct conv_attrs *ca,
		       const struct checkout *state, int to_tempfile,
		       int *nr_checkouts)
{
	unsigned int ce_mode_s_ifmt = ce->ce_mode & S_IFMT;
	struct delayed_checkout *dco = state->delayed_checkout;
	int fd, ret, fstat_done = 0;
	char *new_blob;
	struct strbuf buf = STRBUF_INIT;
	size_t size;
	ssize_t wrote;
	size_t newsize = 0;
	struct stat st;
	const struct submodule *sub;
	struct checkout_metadata meta;
	static int scratch_nr_checkouts;

	clone_checkout_metadata(&meta, &state->meta, &ce->oid);

	if (ce_mode_s_ifmt == S_IFREG) {
		struct stream_filter *filter = get_stream_filter_ca(ca, &ce->oid);
		if (filter &&
		    !streaming_write_entry(ce, path, filter,
					   state, to_tempfile,
					   &fstat_done, &st))
			goto finish;
	}

	switch (ce_mode_s_ifmt) {
	case S_IFLNK:
		new_blob = read_blob_entry(ce, &size);
		if (!new_blob)
			return error("unable to read sha1 file of %s (%s)",
				     ce->name, oid_to_hex(&ce->oid));

		/*
		 * We can't make a real symlink; write out a regular file entry
		 * with the symlink destination as its contents.
		 */
		if (!has_symlinks || to_tempfile)
			goto write_file_entry;

		ret = symlink(new_blob, path);
		free(new_blob);
		if (ret)
			return error_errno("unable to create symlink %s", path);
		break;

	case S_IFREG:
		/*
		 * We do not send the blob in case of a retry, so do not
		 * bother reading it at all.
		 */
		if (dco && dco->state == CE_RETRY) {
			new_blob = NULL;
			size = 0;
		} else {
			new_blob = read_blob_entry(ce, &size);