diff --git a/site-modules/core/files/bin/git-find-merge b/site-modules/core/files/bin/git-find-merge
new file mode 100755
index 0000000..139658f
--- /dev/null
+++ b/site-modules/core/files/bin/git-find-merge
@@ -0,0 +1,7 @@
+#!/bin/bash
+# See: https://stackoverflow.com/questions/8475448/find-merge-commit-which-includes-a-specific-commit
+
+commit=$1
+branch=${2:-HEAD}
+candidates=$(git rev-list $commit..$branch --ancestry-path | cat -n; git rev-list $commit..$branch --first-parent | cat -n)
+echo "$candidates" | sort -k2 -s | uniq -f1 -d | sort -n | tail -1 | cut -f2