tree 727cc7692a4e80c85631cfc3f997fa83cdf22a0a
parent be5fe2000df5c1110d8086e4704e1a90a64f7387
author Aaron Lipman <alipman88@gmail.com> 1596837517 -0400
committer Junio C Hamano <gitster@pobox.com> 1596838383 -0700

bisect: introduce first-parent flag

Upon seeing a merge commit when bisecting, this option may be used to
follow only the first parent.

In detecting regressions introduced through the merging of a branch, the
merge commit will be identified as introduction of the bug and its
ancestors will be ignored.

This option is particularly useful in avoiding false positives when a
merged branch contained broken or non-buildable commits, but the merge
itself was OK.

Signed-off-by: Aaron Lipman <alipman88@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>