add get_commit

a helper when constructing emails

diff --git a/get_commit b/get_commit
new file mode 100755 (executable)
index 0000000..3878b78
--- /dev/null
+++ b/get_commit
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+commit=
+if [ "$1" ]; then
+        commit=$1
+        shift
+else
+       printf 'Usage: %s <commit>\n' "$0" 1>&2
+       exit 1
+fi
+
+tools_dir=$(dirname "$0")
+. "$tools_dir/common.sh"
+
+"$tools_dir/clog" "$commit"
+
+git log -1 --format='Cc: %an <%ae>%nCc: %cn <%ce>' "$commit" | sort -u
+
+exit 0