From 049969911dbf8556eafdde07cfabbcf05fb5ec9b Mon Sep 17 00:00:00 2001
From: Lars Karlitski <lars@karlitski.net>
Date: Fri, 14 Feb 2020 13:22:38 +0100
Subject: [PATCH] tools: add prepare-source.sh

A script that runs various go tools (mod tidy, mod vendor, and fmt for
now).

The idea is that it prepares the source to be ready for master. As such,
running it on master shouldn't modify any files. Make sure of that by
adding a test.
---
 .travis.yml             | 10 ++++++++++
 tools/prepare-source.sh |  7 +++++++
 2 files changed, 17 insertions(+)
 create mode 100755 tools/prepare-source.sh

diff --git a/.travis.yml b/.travis.yml
index 58a8450b8..3ec8a2b65 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,16 @@ addons:
       - gnupg2
 matrix:
   include:
+    - name: source-test
+      script:
+        - |
+          set -e
+          ./tools/prepare-source.sh
+          if [ ! $(git diff --quiet --exit-code) ]; then
+            echo
+            echo "Please include these changes in your branch: "
+            git diff
+          fi
     - name: unit-tests
       arch: amd64
       language: go
diff --git a/tools/prepare-source.sh b/tools/prepare-source.sh
new file mode 100755
index 000000000..f77218b57
--- /dev/null
+++ b/tools/prepare-source.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -eux
+
+go fmt ./...
+go mod tidy
+go mod vendor