[PATCH] diff: return 1 when skipping directories with -r, but without -N

[Roman Borisov]

On 01/25/2011 07:03 PM, ext Alexander Shishkin wrote:
> Diff in diffutils will return 1 in case -r option is specified without
> -N something exists only in one of the directories.
>
> Signed-off-by: Alexander Shishkin<virtuoso at slind.org>
> ---
>   editors/diff.c |    9 ++++++---
>   1 files changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/editors/diff.c b/editors/diff.c
> index cc7ba47..ca4a4ea 100644
> --- a/editors/diff.c
> +++ b/editors/diff.c
> @@ -794,7 +794,9 @@ static int FAST_FUNC skip_dir(const char *filename,
>   			free(othername);
>   			if (r != 0 || !S_ISDIR(osb.st_mode)) {
>   				/* other dir doesn't have similarly named
> -				 * directory, don't recurse */
> +				 * directory, don't recurse; return 1 upon
> +				 * exit, just like diffutils' diff */
> +				exit_status |= 1;
>   				return SKIP;
>   			}
>   		}
> @@ -846,9 +848,10 @@ static void diffdir(char *p[2], const char *s_start)
>   			break;
>   		pos = !dp[0] ? 1 : (!dp[1] ? -1 : strcmp(dp[0], dp[1]));
>   		k = pos>  0;
> -		if (pos&&  !(option_mask32&  FLAG(N)))
> +		if (pos&&  !(option_mask32&  FLAG(N))) {
>   			printf("Only in %s: %s\n", p[k], dp[k]);
> -		else {
> +			exit_status |= 1;
> +		} else {
>   			char *fullpath[2], *path[2]; /* if -N */
>
>   			for (i = 0; i<  2; i++) {

thanks,
tried the patch;
the issue was gone: bb->diff returns the same result as diff-utils

Roman