Add Go 1.20 support

Swaps lint tooling from golint to golangci-lint.
Resolve lint warnings for deprecated package io/ioutil.
Add go.[mod/sum] to gitignore.

Signed-off-by: Austin Vazquez <macedonv@amazon.com>

.github/workflows/build-pr.yml

@@ -8,13 +8,18 @@ on:
 jobs:
  run:
  runs-on: ubuntu-latest
+
+ strategy:
+ matrix:
+ go: ['1.18.x', '1.19.x', '1.20.x']
+
  steps:
  - name: checkout source code
  uses: actions/checkout@master
  - name: setup go environment
- uses: actions/setup-go@v1
+ uses: actions/setup-go@v3
  with:
- go-version: '1.17.2'
+ go-version: ${{ matrix.go }}
  - name: run tests
  run: |
  export PATH="$(go env GOPATH)/bin:${PATH}"
@@ -26,7 +31,7 @@ jobs:
 
  go get -d ./schema/...
  make .govet
- make .golint
+ make .lint
 
  make .gitvalidation
  make docs

.github/workflows/build.yml

@@ -8,13 +8,18 @@ on:
 jobs:
  run:
  runs-on: ubuntu-latest
+
+ strategy:
+ matrix:
+ go: ['1.18.x', '1.19.x', '1.20.x']
+
  steps:
  - name: checkout source code
  uses: actions/checkout@master
  - name: setup go environment
- uses: actions/setup-go@v1
+ uses: actions/setup-go@v3
  with:
- go-version: '1.17.2'
+ go-version: ${{ matrix.go }}
  - name: run tests
  run: |
  export PATH="$(go env GOPATH)/bin:${PATH}"
@@ -26,7 +31,7 @@ jobs:
 
  go get -d ./schema/...
  make .govet
- make .golint
+ make .lint
 
  make .gitvalidation
  make docs

.gitignore

@@ -1,3 +1,5 @@
+go.mod
+go.sum
 output
 schema/validate
 version.md

Makefile

@@ -61,12 +61,9 @@ test: .govet .golint .gitvalidation
 .govet:
  go vet -x ./...
 
-# `go get github.com/golang/lint/golint`
-.golint:
-ifeq ($(call ALLOWED_GO_VERSION,1.7,$(HOST_GOLANG_VERSION)),true)
- @which golint > /dev/null 2>/dev/null || (echo "ERROR: golint not found. Consider 'make install.tools' target" && false)
- golint ./...
-endif
+.lint:
+ @which golangci-lint > /dev/null 2>/dev/null || (echo "ERROR: golangci-lint not found. Consider 'make install.tools' target" && false)
+ golangci-lint run
 
 
 # When this is running in GitHub, it will only check the GitHub commit range
@@ -78,16 +75,13 @@ else
  git-validation -v -run DCO,short-subject,dangling-whitespace -range $(EPOCH_TEST_COMMIT)..HEAD
 endif
 
-install.tools: .install.golint .install.gitvalidation
+install.tools: .install.lint .install.gitvalidation
 
-# golint does not even build for <go1.7
-.install.golint:
-ifeq ($(call ALLOWED_GO_VERSION,1.7,$(HOST_GOLANG_VERSION)),true)
- go get -u golang.org/x/lint/golint
-endif
+.install.lint:
+ go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.51.0
 
 .install.gitvalidation:
- go get -u github.com/vbatts/git-validation
+ go install github.com/vbatts/git-validation@v1.1.0
 
 clean:
  rm -rf $(OUTPUT_DIRNAME) *~

schema/validate.go

@@ -2,7 +2,7 @@ package main
 
 import (
  "fmt"
- "io/ioutil"
+ "io"
  "os"
  "path/filepath"
  "strings"
@@ -61,7 +61,7 @@ func main() {
  }
  documentLoader = gojsonschema.NewReferenceLoader("file://" + documentPath)
  } else {
- documentBytes, err := ioutil.ReadAll(os.Stdin)
+ documentBytes, err := io.ReadAll(os.Stdin)
  if err != nil {
  fmt.Println(err)
  os.Exit(1)