From af12dc0839a74e06e1a632956e970f1d13dad616 Mon Sep 17 00:00:00 2001
From: Yanqin Jin <yanqin@fb.com>
Date: Wed, 29 Apr 2020 10:25:56 -0700
Subject: [PATCH] Add more debug print

---
 build_tools/format-diff.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/build_tools/format-diff.sh b/build_tools/format-diff.sh
index 4a13d4238..e8c2800f5 100755
--- a/build_tools/format-diff.sh
+++ b/build_tools/format-diff.sh
@@ -102,14 +102,18 @@ if [ -z "$uncommitted_code" ]
 then
   # Attempt to get name of facebook/rocksdb.git remote.
   [ "$FORMAT_REMOTE" ] || FORMAT_REMOTE="$(git remote -v | grep 'facebook/rocksdb.git' | head -n 1 | cut -f 1)"
+  echo FORMAT_REMOTE is $FORMAT_REMOTE
   # Fall back on 'origin' if that fails
   [ "$FORMAT_REMOTE" ] || FORMAT_REMOTE=origin
+  echo FORMAT_REMOTE is $FORMAT_REMOTE
   # Use master branch from that remote
   [ "$FORMAT_UPSTREAM" ] || FORMAT_UPSTREAM="$FORMAT_REMOTE/master"
+  echo FORMAT_UPSTREAM is $FORMAT_UPSTREAM
   # Get the common ancestor with that remote branch. Everything after that
   # common ancestor would be considered the contents of a pull request, so
   # should be relevant for formatting fixes.
   FORMAT_UPSTREAM_MERGE_BASE="$(git merge-base "$FORMAT_UPSTREAM" HEAD)"
+  echo FORMAT_UPSTREAM_MERGE_BASE is $FORMAT_UPSTREAM_MERGE_BASE
   # Get the differences
   diffs=$(git diff -U0 "$FORMAT_UPSTREAM_MERGE_BASE" | $CLANG_FORMAT_DIFF -p 1)
 else
@@ -117,6 +121,8 @@ else
   diffs=$(git diff -U0 HEAD | $CLANG_FORMAT_DIFF -p 1)
 fi
 
+diffs_line_one=$($diffs | head -n 1)
+echo $diffs_line_one
 if [ -z "$diffs" ]
 then
   echo "Nothing needs to be reformatted!"