Fix splitting after using a squash merge.

diff --git a/git-subtree.sh b/git-subtree.sh
index f7fe11117869460aad9f572cf0302b5f06ee0563..1fff10e8543279e8c46f3d47a4dc73b42d5f55be 100755 (executable)
--- a/git-subtree.sh
+++ b/git-subtree.sh
@@ -203,13 +203,17 @@ find_existing_splits()
        dir="$1"
        revs="$2"
        git log --grep="^git-subtree-dir: $dir\$" \
-               --pretty=format:'%s%n%n%b%nEND%n' $revs |
+               --pretty=format:'START %H%n%s%n%n%b%nEND%n' $revs |
        while read a b junk; do
                case "$a" in
-                       START) main="$b" ;;
+                       START) main="$b"; sq="$b" ;;
                        git-subtree-mainline:) main="$b" ;;
                        git-subtree-split:) sub="$b" ;;
                        END)
+                               if [ -z "$main" -a -n "$sub" ]; then
+                                       # squash commits refer to a subtree
+                                       cache_set "$sq" "$sub"
+                               fi
                                if [ -n "$main" -a -n "$sub" ]; then
                                        debug "  Prior: $main -> $sub"
                                        cache_set $main $sub