From d399073695278888e1ce1c9a7d3a864811504924 Mon Sep 17 00:00:00 2001
From: Indradhanush Gupta <indradhanush.gupta@gmail.com>
Date: Sun, 20 Oct 2019 16:34:52 +0530
Subject: [PATCH] Add script to check for uncommitted vendor changes in build

---
 .travis.yml                               |  2 +-
 scripts/check-uncommitted-vendor-files.sh | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100755 scripts/check-uncommitted-vendor-files.sh

diff --git a/.travis.yml b/.travis.yml
index 3e1abfe3..cdd82abd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,4 +11,4 @@ before_install:
   - cd $HOME/gopath/src/github.com/wtfutil/wtf
   - export GOPROXY="https://gocenter.io" && export GO111MODULE=on
 
-script: go get ./... && go test -v github.com/wtfutil/wtf/...
+script: go get ./... && ./scripts/check-uncommitted-vendor-files.sh && go test -v github.com/wtfutil/wtf/...
diff --git a/scripts/check-uncommitted-vendor-files.sh b/scripts/check-uncommitted-vendor-files.sh
new file mode 100755
index 00000000..780b663a
--- /dev/null
+++ b/scripts/check-uncommitted-vendor-files.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -euo pipefail
+
+GOPROXY="https://gocenter.io" GOSUMDB=off GO111MODULE=on go mod tidy
+
+untracked_files=$(git ls-files --others --exclude-standard | wc -l)
+
+diff_stat=$(git diff --shortstat)
+
+if [[ "${untracked_files}" -ne 0 || -n "${diff_stat}" ]]; then
+  echo 'Untracked or diff in tracked vendor files found. Please run "go mod tidy" and commit the changes'
+  exit 1
+fi