Re: [PATCH] Teach 'git-apply --whitespace=strip' to remove empty lines at the end of file

On 5/22/07, Junio C Hamano [off-list ref] wrote:

"Marco Costalba" [off-list ref] writes:

quoted

On 5/21/07, Junio C Hamano [off-list ref] wrote:

quoted

Junio C Hamano [off-list ref] writes:


We somehow end up removing one LF too many, like this:

    diff --git a/contrib/emacs/.gitignore b/contrib/emacs/.gitignore
    index c531d98..016d3b1 100644
    --- a/contrib/emacs/.gitignore
    +++ b/contrib/emacs/.gitignore
    @@ -1 +1 @@
    -*.elc
    +*.elc
    \ No newline at end of file

The final, and correct version is:

       if (new_whitespace == strip_whitespace && trailing_added_lines)  {

	int n = 0;
	for (   ; n  <= trailing_added_lines; n++)  { /* counting trailing '\n' */

		if (newsize == n)  {
			n++;
			break;
		}
		if (new[newsize - 1 - n] != '\n')
			break;
	}
             trailing_added_lines = (n>0) ? --n : 0;
      }  else
	trailing_added_lines = 0;


but I understand is ugly as hell. The fact is, it is far easier to
count '\n' *while* they are created then after at the end.


So no problem for me if you drop my patch.


  Marco