Function write_pc_item

parallel-checkout.c:335–408

}

void write_pc_item(struct parallel_checkout_item *pc_item,
		   struct checkout *state)
{
	unsigned int mode = (pc_item->ce->ce_mode & 0100) ? 0777 : 0666;
	int fd = -1, fstat_done = 0;
	struct strbuf path = STRBUF_INIT;
	const char *dir_sep;

	strbuf_add(&path, state->base_dir, state->base_dir_len);
	strbuf_add(&path, pc_item->ce->name, pc_item->ce->ce_namelen);

	dir_sep = find_last_dir_sep(path.buf);

	/*
	 * The leading dirs should have been already created by now. But, in
	 * case of path collisions, one of the dirs could have been replaced by
	 * a symlink (checked out after we enqueued this entry for parallel
	 * checkout). Thus, we must check the leading dirs again.
	 */
	if (dir_sep && !has_dirs_only_path(path.buf, dir_sep - path.buf,
					   state->base_dir_len)) {
		pc_item->status = PC_ITEM_COLLIDED;
		trace2_data_string("pcheckout", NULL, "collision/dirname", path.buf);
		goto out;
	}

	fd = open(path.buf, O_WRONLY | O_CREAT | O_EXCL, mode);

	if (fd < 0) {
		if (errno == EEXIST || errno == EISDIR) {
			/*
			 * Errors which probably represent a path collision.
			 * Suppress the error message and mark the item to be
			 * retried later, sequentially. ENOTDIR and ENOENT are
			 * also interesting, but the above has_dirs_only_path()
			 * call should have already caught these cases.
			 */
			pc_item->status = PC_ITEM_COLLIDED;
			trace2_data_string("pcheckout", NULL,
					   "collision/basename", path.buf);
		} else {
			error_errno("failed to open file '%s'", path.buf);
			pc_item->status = PC_ITEM_FAILED;
		}
		goto out;
	}

	if (write_pc_item_to_fd(pc_item, fd, path.buf)) {
		/* Error was already reported. */
		pc_item->status = PC_ITEM_FAILED;
		close_and_clear(&fd);
		unlink(path.buf);
		goto out;
	}

	fstat_done = fstat_checkout_output(fd, state, &pc_item->st);

	if (close_and_clear(&fd)) {