Update CI tests to ensure all codegen changes are accounted for in PR (#183)

Updates the CI tests to ensure that any code generation changes are
accounted for in the PR, and that there were no mistaken changes made
without also running code generation. This change should also help
ensure that code generation order is stable, and there are no ordering
issues with the SDK's codegen.

V2 port of: aws/aws-sdk-go#1966

Author: jasdel

.travis.yml

@@ -2,24 +2,23 @@ language: go
 
 sudo: required
 
+os:
+    - linux
+    - osx
 go:
-  - 1.5
-  - 1.6
-  - 1.7
-  - 1.8
-  - 1.9
-  - tip
-    
-# Use Go 1.5's vendoring experiment for 1.5 tests.
-env:
-  - GO15VENDOREXPERIMENT=1
+    - 1.9.x
+    - 1.10.x
+    - 1.11.x
+    - 1.12.x
+    - tip
 
-install:
-  - make get-deps
+matrix:
+    allow_failures:
+        - go: tip
 
 script:
-  - make unit-with-race-cover
+    make ci-test;
 
-matrix:
-  allow_failures:
-    - go: tip
+branches:
+  only:
+    - master

Makefile

@@ -65,14 +65,16 @@ unit-with-race-cover: verify
 	@echo "go test SDK and vendor packages"
 	@go test -tags ${UNIT_TEST_TAGS} -race -cpu=1,2,4 ${SDK_ALL_PKGS}
 
-#ci-test: generate unit-with-race-cover ci-test-generate-validate
-#
-#ci-test-generate-validate:
-#	@echo "CI test validate no generated code changes"
-#	git add . -A
-#	gitstatus=`git diff --cached --ignore-space-change`; \
-#	echo "$$gitstatus"; \
-#	if [ "$$gitstatus" != "" ] && [ "$$gitstatus" != "skipping validation" ]; then echo "$$gitstatus"; exit 1; fi
+ci-test: generate unit-with-race-cover ci-test-generate-validate
+
+ci-test-generate-validate:
+	@echo "CI test validate no generated code changes"
+	git update-index --assume-unchanged go.mod go.sum
+	git add . -A
+	gitstatus=`git diff --cached --ignore-space-change`; \
+	git update-index --no-assume-unchanged go.mod go.sum
+	echo "$$gitstatus"; \
+	if [ "$$gitstatus" != "" ]; then echo "$$gitstatus"; exit 1; fi
 
 #######################
 # Integration Testing #

buildspec-NoGoMods.yml

@@ -10,7 +10,7 @@ phases:
       - mkdir -p /go/src/github.com/aws
       - ln -s $SDK_CB_ROOT $SDK_GO_ROOT
       - cd $SDK_GO_ROOT
-      - make get-deps unit
+      - make get-deps ci-test
       - cd $SDK_CB_ROOT
   post_build:
     commands:

buildspec.yml

@@ -6,7 +6,7 @@ phases:
       - echo Build started on `date`
       - export GOPATH=/go
       - export SDK_CODEBUILD_ROOT=`pwd`
-      - make get-deps-verify unit
+      - make get-deps-verify ci-test
   post_build:
     commands:
       - echo Build completed on `date`