Finish Removing golint (gomods#1746)

* Set GO111MODULE to auto in golint script– gomods#1743

As mentioned in gomods#1743 the Go modules environment flag is set to `off`
in the script which appears to cause a warning message for each module
of the codebase that it is "not in GOROOT".

Set to `auto` as this allows the same build to be run the original way
should someone choose to delete the `go.mod` file from the project root.

* Remove redundant code – golint script

Go 1.17 ignores `GO111MODULE` and there are no directories in the
project root called `mock`.

* Replace `golint` with `go vet`

`golint` is deprecated (and frozen) replace with the current `go vet`.
This reported one issue on `main` branch:
```pkg/stash/with_etcd.go:33:28:
loop variable ep captured by func literal```

Fixed loop variable capture with extraction to parameterised anonymous
function passed loop variable and passed in to `errgroup.Go` call.

* Finish Removing `golint`

Removed remaining references to `golint` in dev doc, Makefile,
bash scripts, and powershell build scripts.
Removed `get_dev_tools.sh` and `get_dev_tools.ps1` as they only install
the removed `golint` package.

DEVELOPMENT.md

@@ -234,10 +234,10 @@ Then open [http://localhost:1313](http://localhost:1313/).
 
 # Linting
 
-In our CI/CD pass, we use golint, so feel free to install and run it locally beforehand:
+In our CI/CD pass, we use govet, so feel free to run it locally beforehand:
 
 ```
-go get golang.org/x/lint/golint
+go vet ./...
 ```
 
 # For People Doing a Release

Makefile

@@ -41,7 +41,6 @@ docs: ## build the docs docker image
 
 .PHONY: setup-dev-env
 setup-dev-env:
-	./scripts/get_dev_tools.sh
 	$(MAKE) dev
 
 .PHONY: verify

docs/content/contributing/new/development.md

@@ -85,8 +85,8 @@ Then open [http://localhost:1313](http://localhost:1313/).
 
 # Linting
 
-In our CI/CD pass, we use golint, so feel free to install and run it locally beforehand:
+In our CI/CD pass, we use govet, so feel free to run it locally beforehand:
 
 ```
-go get golang.org/x/lint/golint
+go vet ./...
 ```

init.ps1

@@ -52,7 +52,6 @@ function execScript($name) {
 }
 
 if ($setup_dev_env.IsPresent) {
-	execScript "get_dev_tools.ps1"
 	& docker-compose -p athensdev up -d mongo
 }
 
@@ -81,7 +80,7 @@ if ($docs.IsPresent) {
 
 if ($verify.IsPresent) {
 	execScript "check_gofmt.ps1"
-	execScript "check_golint.ps1"
+	execScript "check_govet.ps1"
 	execScript "check_deps.ps1"
 }
 

scripts/check_govet.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# check_golint.sh
+# check_govet.sh
 # Run the linter on everything except generated code
 set -euo pipefail
 

scripts/ps/check_golint.ps1 → scripts/ps/check_govet.ps1

@@ -1,7 +1,7 @@
-# check_golint.ps1
+# check_govet.ps1
 # Run the linter on everything
 
-$out = & golint -set_exit_status $(& go list ./...)
+$out = & go vet ./...
 if ($LastExitCode -ne 0) {
     Write-Error $out
 }