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authorJunio C Hamano <gitster@pobox.com>2013-01-17 22:23:03 (GMT)
committerJunio C Hamano <gitster@pobox.com>2013-01-17 23:22:48 (GMT)
commit4b7f53da7618e94985c9d9d5081b4bc44c45de2f (patch)
tree909a630447fce8467cd286342bf38ee269794c61 /t
parentfaf0156b278d1a760362cda1d294a88be7608de4 (diff)
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simplify-merges: drop merge from irrelevant side branch
The merge simplification rule stated in 6546b59 (revision traversal: show full history with merge simplification, 2008-07-31) still treated merge commits too specially. Namely, in a history with this shape: ---o---o---M / x---x---x where three 'x' were on a history completely unrelated to the main history 'o' and do not touch any of the paths we are following, we still said that after simplifying all of the parents of M, 'x' (which is the leftmost 'x' that rightmost 'x simplifies down to) and 'o' (which would be the last commit on the main history that touches the paths we are following) are independent from each other, and both need to be kept. That is incorrect; when the side branch 'x' never touches the paths, it should be removed to allow M to simplify down to the last commit on the main history that touches the paths. Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't')
-rwxr-xr-xt/t6012-rev-list-simplify.sh26
1 files changed, 21 insertions, 5 deletions
diff --git a/t/t6012-rev-list-simplify.sh b/t/t6012-rev-list-simplify.sh
index 510bb96..d6d79c4 100755
--- a/t/t6012-rev-list-simplify.sh
+++ b/t/t6012-rev-list-simplify.sh
@@ -59,7 +59,23 @@ test_expect_success setup '
echo "Final change" >file &&
test_tick && git commit -a -m "Final change" &&
- note I
+ note I &&
+
+ git symbolic-ref HEAD refs/heads/unrelated &&
+ git rm -f "*" &&
+ echo "Unrelated branch" >side &&
+ git add side &&
+ test_tick && git commit -m "Side root" &&
+ note J &&
+
+ git checkout master &&
+ test_tick && git merge -m "Coolest" unrelated &&
+ note K &&
+
+ echo "Immaterial" >elif &&
+ git add elif &&
+ test_tick && git commit -m "Last" &&
+ note L
'
FMT='tformat:%P %H | %s'
@@ -82,10 +98,10 @@ check_result () {
'
}
-check_result 'I H G F E D C B A' --full-history
-check_result 'I H E C B A' --full-history -- file
-check_result 'I H E C B A' --full-history --topo-order -- file
-check_result 'I H E C B A' --full-history --date-order -- file
+check_result 'L K J I H G F E D C B A' --full-history
+check_result 'K I H E C B A' --full-history -- file
+check_result 'K I H E C B A' --full-history --topo-order -- file
+check_result 'K I H E C B A' --full-history --date-order -- file
check_result 'I E C B A' --simplify-merges -- file
check_result 'I B A' -- file
check_result 'I B A' --topo-order -- file