It can be puzzling to see that was_tracked() asks to get an index entry
by name, but does not take a negative return value for an answer.
The reason we have to do this is that cache_name_pos() only looks for
entries in stage 0, even if nobody asked for any stage in particular.
Let's rewrite the logic a little bit, to handle the easy case early: if
cache_name_pos() returned a non-negative position, we know it is a match,
and we do not even have to compare the name again (cache_name_pos() did
that for us already). We can say right away: yes, this file was tracked.
Only if there was no exact match do we need to look harder for any
matching entry in stage 2.
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
merge-recursive.c | 30 ++++++++++++++----------------
1 file changed, 14 insertions(+), 16 deletions(-)
diff --git a/merge-recursive.c b/merge-recursive.c
index e0d5a57..dc3182b 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -658,23 +658,21 @@ static int was_tracked(const char *path)
{
int pos = cache_name_pos(path, strlen(path));
- if (pos < 0)
- pos = -1 - pos;
- while (pos < active_nr &&
- !strcmp(path, active_cache[pos]->name)) {
- /*
- * If stage #0, it is definitely tracked.
- * If it has stage #2 then it was tracked
- * before this merge started. All other
- * cases the path was not tracked.
- */
- switch (ce_stage(active_cache[pos])) {
- case 0:
- case 2:
+ if (0 <= pos)
+ /* we have been tracking this path */
+ return 1;
+
+ /*
+ * Look for an unmerged entry for the path,
+ * specifically stage #2, which would indicate
+ * that "our" side before the merge started
+ * had the path tracked (and resulted in a conflict).
+ */
+ for (pos = -1 - pos;
+ pos < active_nr && !strcmp(path, active_cache[pos]->name);
+ pos++)
+ if (ce_stage(active_cache[pos]) == 2)
return 1;
- }
- pos++;
- }
return 0;
}
--
2.9.0.281.g286a8d9
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