Junio C Hamano <junkio@xxxxxxx> writes: > ... these may or may not be at the end of the file, so > inspecting what blank lines they have at the end is not > sufficient. If "new" does not introduce new blank lines at its > end, then you can be sure that you are not adding trailing blank > lines, but even if "new" does introduce a new blank line at the > end, you do not know if that is adding it to the end of the > file, or in the middle. > > You do not know where the hunk is applied until you do the loop > that follows the part your patch we are discussing. If I were doing this, I would probably do it this way: (1) Inside apply_one_fragment(), where "case '+':" appears, count the blank (not just '\n', but matches /^\s*$/) lines at the end of "new" side. As soon as you fall into "case ' ':" or "case '-':" or non-blank line in "case '+':", you reset the counter to zero, so that what you are counting is the number of blank lines that would have get added, if the hunk were to be applied at the end of the file. Keep that number ofter you separated the fragment into new and old. (2) In the same function, inside the big "for (;;)" loop that figures out where to apply that "old" => "new" change, use the number you gathered in the step (1) to trim what is applied, where the real application happens, which is the part that has memmove()/memcpy(), only when you know you are applying the hunk at the end of the file. That is the only place in the function that knows where the hunk is being applied. - To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html