1 files changed, 18 insertions, 0 deletions
diff --git a/tools/aosp/aosp_sha.sh b/tools/aosp/aosp_sha.sh
new file mode 100755
index 000000000000..29bf74c7a8b9
--- /dev/null
+++ b/tools/aosp/aosp_sha.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+LOCAL_DIR="$( dirname ${BASH_SOURCE} )"
+
+if git branch -vv | grep "^*" | grep "\[aosp/master" > /dev/null; then
+    # Change appears to be in AOSP
+    exit 0
+else
+    # Change appears to be non-AOSP; search for files
+    git show --name-only --pretty=format: $1 | grep $2 | while read file; do
+        echo
+        echo -e "\033[0;31mThe source of truth for '$file' is in AOSP.\033[0m"
+        echo
+        echo "If your change contains no confidential details, please upload and merge"
+        echo "this change at https://android-review.googlesource.com/."
+        echo
+        exit 77
+    done
+fi