Adding mattermost-govet to the pipeline (#13257)

* Adding mattermost-govet to the pipeline

* Trying to fix circleCI config

* Trying to fix circleCI config

* Trying to fix circleCI config

* Trying to fix circleCI config

* Update Makefile

Co-Authored-By: Ben Schumacher <ben.schumacher@mattermost.com>

* Update Makefile

Co-Authored-By: Ben Schumacher <ben.schumacher@mattermost.com>

* Addressing PR review comments

* Addressing PR review comments

* Addressing PR review comments

* Addressing PR review comments

* Addressing PR review comments

* Addressing PR review comments

* Adding legacy check-licenses task to legacy.mk

* Removing unnecesary GO111MODULE=off lines

* Adding jenkins mattermost-govet installation

build/Jenkinsfile.pr

@@ -102,6 +102,8 @@ pipeline {
 							cd /go/src/github.com/mattermost/mattermost-server
 							echo "Installing golangci-lint"
 							curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s -- -b /usr/local/bin v1.21.0 # Keep this in sync with .golangci.yml and .circleci/config.yml
+							echo "Installing mattermost-govet"
+							GO111MODULE=off go get -u github.com/mattermost/mattermost-govet
 							make config-reset
 							make check-style BUILD_NUMBER='${BRANCH_NAME}-${BUILD_NUMBER}'
 							make build BUILD_NUMBER='${BRANCH_NAME}-${BUILD_NUMBER}'

build/legacy.mk

@@ -4,6 +4,9 @@ test-te: test-server
 # test-ee used to just run the enterprise edition tests, but now runs whatever is available
 test-ee: test-server
 
+# check-licenses was used to check the license of the files, but now is done through mattermost-govet
+check-licenses: vet
+
 # clean old docker images
 clean-old-docker:
 	@echo Removing docker containers