From 1a6bfab4e9d391743e304a0b7fb3145ae560060a Mon Sep 17 00:00:00 2001
From: Jean de Klerk <deklerk@google.com>
Date: Fri, 24 May 2019 11:07:38 -0400
Subject: [PATCH] travis: ensure dependencies are encoded in go.mod

Currently a user can add new deps in *.go files that do not exist in the
go.mod/go.sum. This commit adds a small check in CI to ensure that no new
deps were added that aren't in the go.mod/go.sum.

This commit includes a run of `go mod tidy`.
---
 .travis.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index bb83057..8f0f200 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,12 @@ matrix:
 
 script:
   - go install ./...
+
+  # Ensure no dependencies were added without encoding them in go.mod/go.sum.
+  - go mod tidy
+  - git diff go.mod | tee /dev/stderr | (! read)
+  - git diff go.sum | tee /dev/stderr | (! read)
+
   - diff -u <(echo -n) <(gofmt -d .)
   - go test -v ./...