From 4c22c566e25ff2bc6fa80cd9627c59512a1f768d Mon Sep 17 00:00:00 2001
From: Vincent Demeester <vincent@sbr.pm>
Date: Thu, 7 Jan 2016 19:57:15 +0100
Subject: [PATCH] Add a validate-vendor script

Makes sure that if ./hack/vendor.sh has been updated, it has been used
to update the vendor folder.

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
---
 Makefile                  |  2 +-
 hack/make.sh              |  1 +
 hack/make/validate-vendor | 27 +++++++++++++++++++++++++++
 3 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 hack/make/validate-vendor

diff --git a/Makefile b/Makefile
index 17ab01b965..6bca1e7642 100644
--- a/Makefile
+++ b/Makefile
@@ -93,4 +93,4 @@ test-unit: build
 	$(DOCKER_RUN_DOCKER) hack/make.sh test-unit
 
 validate: build
-	$(DOCKER_RUN_DOCKER) hack/make.sh validate-dco validate-gofmt validate-pkg validate-lint validate-test validate-toml validate-vet
+	$(DOCKER_RUN_DOCKER) hack/make.sh validate-dco validate-gofmt validate-pkg validate-lint validate-test validate-toml validate-vet validate-vendor
diff --git a/hack/make.sh b/hack/make.sh
index c87282b756..5aa044dddd 100755
--- a/hack/make.sh
+++ b/hack/make.sh
@@ -51,6 +51,7 @@ DEFAULT_BUNDLES=(
 	validate-test
 	validate-toml
 	validate-vet
+	validate-vendor
 
 	binary
 	dynbinary
diff --git a/hack/make/validate-vendor b/hack/make/validate-vendor
new file mode 100644
index 0000000000..7c2cf33c66
--- /dev/null
+++ b/hack/make/validate-vendor
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+source "${MAKEDIR}/.validate"
+
+IFS=$'\n'
+files=( $(validate_diff --diff-filter=ACMR --name-only -- 'hack/vendor.sh' 'hack/.vendor-helpers.sh' 'vendor/' || true) ) 
+unset IFS
+
+if [ ${#files[@]} -gt 0 ]; then
+	# We run vendor.sh to and see if we have a diff afterwards
+	./hack/vendor.sh >/dev/null
+	# Let see if the working directory is clean
+	diffs="$(git status --porcelain -- vendor 2>/dev/null)"
+	if [ "$diffs" ]; then
+		{
+			echo 'The result of ./hack/vendor.sh differs'
+			echo
+			echo "$diffs"
+			echo
+			echo 'Please vendor your package with ./hack/vendor.sh.'
+			echo
+		} >&2
+		false
+	else
+		echo 'Congratulations! All vendoring changes are done the right way.'
+	fi
+fi