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rename detection with -M100 means "exact renames only". 

When the user is interested in pure renames, there is no point
doing the similarity scores.  This changes the score argument
parsing to special case -M100 (otherwise, it is a precision
scaled value 0 <= v < 1 and would mean 0.1, not 1.0 --- if you
do mean 0.1, you can say -M1), and optimizes the diffcore_rename
transformation to only look at pure renames in that case.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2005-11-21 12:18:23 -08:00
parent 88b5a74883
commit 9f70b80692
2 changed files with 7 additions and 0 deletions
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4
diff.c
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@ -853,6 +853,10 @@ static int parse_num(const char **cp_p)
}
*cp_p = cp;
/* special case: -M100 would mean 1.0 not 0.1 */
if (num == 100 && scale == 1000)
return MAX_SCORE;
/* user says num divided by scale and we say internally that
* is MAX_SCORE * num / scale.
*/

3
diffcore-rename.c
View File

@ -307,6 +307,9 @@ void diffcore_rename(struct diff_options *options)
if (rename_count == rename_dst_nr)
goto cleanup;
if (minimum_score == MAX_SCORE)
goto cleanup;
num_create = (rename_dst_nr - rename_count);
num_src = rename_src_nr;
mx = xmalloc(sizeof(*mx) * num_create * num_src);