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-rwxr-xr-xgit-checkout.sh28
1 files changed, 27 insertions, 1 deletions
diff --git a/git-checkout.sh b/git-checkout.sh
index 3bbd111773..76e6a41c6c 100755
--- a/git-checkout.sh
+++ b/git-checkout.sh
@@ -121,7 +121,33 @@ then
git-checkout-index -q -f -u -a
else
git-update-index --refresh >/dev/null
- git-read-tree -m -u $old $new
+ git-read-tree -m -u $old $new || (
+ echo >&2 -n "Try automerge [y/N]? "
+ read yesno
+ case "$yesno" in [yY]*) ;; *) exit 1 ;; esac
+
+ # NEEDSWORK: We may want to reset the index from the $new for
+ # these paths after the automerge happens, but it is not done
+ # yet. Probably we need to leave unmerged ones alone, and
+ # yank the object name & mode from $new for cleanly merged
+ # paths and stuff them in the index.
+
+ names=`git diff-files --name-only`
+ case "$names" in
+ '') ;;
+ *)
+ echo "$names" | git update-index --remove --stdin ;;
+ esac
+
+ work=`git write-tree` &&
+ git read-tree -m -u $old $work $new || exit
+ if result=`git write-tree 2>/dev/null`
+ then
+ echo >&2 "Trivially automerged." ;# can this even happen?
+ exit 0
+ fi
+ git merge-index -o git-merge-one-file -a
+ )
fi
#