When writing conflict hunks in ‘diff3 -m’ format, also add a label to
the common ancestor. Especially in a cherry-pick, it is not immediately
obvious without such a label what the common ancestor represents.
git rerere does not have trouble parsing the new output and its preimage
ids are unchanged since it includes its own code for recreating conflict
hunks. No other code in git parses conflict hunks.
Requested-by: Stefan Monnier <monnier@iro.umontreal.ca>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When reverting a commit, the commit being merged is not the commit
to revert itself but its parent. Add “parent of” to the conflict
hunk label to make this more clear.
The conflict hunk labels are all pieces of a single string written in
the new get_message() function. Avoid some complication by using
mempcpy to advance a pointer as the result is written.
Also free the corresponding temporary buffer (it was leaked before).
This is not important because it is a small one-time allocation. It
would become a memory leak if unnoticed when libifying revert.
This patch uses calls to strlen() instead of integer constants in some
places. GCC will compute the length at compile time; I am not sure
about other compilers, but this is not performance-critical anyway.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We are about to change the format of the conflict hunks that
cherry-pick and revert write. Add tests checking the current behavior
first.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
