Re: [PATCH] Lose perl dependency. (fwd)

Johannes Schindelin wrote:
> @@ -1285,6 +1289,27 @@ struct commit *get_revision(struct rev_info *revs)
>  {
>  	struct commit *c = NULL;
>  
> +	if (revs->reverse) {
> +		struct commit_list *list;
> +
> +		if (revs->reverse == 1) {
> +			revs->reverse = 0;
> +			list = NULL;
> +			while ((c = get_revision(revs)))
> +				commit_list_insert(c, &list);
> +			revs->commits = list;
> +			revs->reverse = 2;
> +		}
> +
> +		if (!revs->commits)
> +			return NULL;
> +		c = revs->commits->item;
> +		list = revs->commits->next;
> +		free(revs->commits);
> +		revs->commits = list;
> +		return c;
> +	}
> +
>  	if (0 < revs->skip_count) {
>  		while ((c = get_revision_1(revs)) != NULL) {
>  			if (revs->skip_count-- <= 0)
> diff --git a/revision.h b/revision.h
> index d93481f..5fec184 100644
> --- a/revision.h
> +++ b/revision.h
> @@ -42,7 +42,8 @@ struct rev_info {
>  			unpacked:1, /* see also ignore_packed below */
>  			boundary:1,
>  			left_right:1,
> -			parents:1;
> +			parents:1,
> +			reverse:2;
>  
>  	/* Diff flags */
>  	unsigned int	diff:1,

I like this.  However, rev_info.reverse needs some documentation.  Or the block in get_revision does:

/*
 * rev_info.reverse is used to note the fact that we want to output the list
 * of revisions in reverse order.  To accomplish this goal, reverse can have
 * different values:
 *  0  do nothing
 *  1  reverse the list
 *  2  internal use:  we have already obtained and reversed the list,
 *     now we only need to yield its items.
 */

cheers
  simon

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