Merge pull request #779 from paketo-buildpacks/go-mod

Add Update Go Workflow and Update to Go 1.18

octo/octo.go

@@ -30,7 +30,7 @@ import (
 
 const (
 	CraneVersion  = "0.8.0"
-	GoVersion     = "1.17"
+	GoVersion     = "1.18"
 	PackVersion   = "0.27.0"
 	RichGoVersion = "0.3.10"
 	YJVersion     = "5.0.0"
@@ -126,6 +126,12 @@ func Contribute(path string) error {
 		contributions = append(contributions, c)
 	}
 
+	if c, err := ContributeUpdateGo(descriptor); err != nil {
+		return err
+	} else {
+		contributions = append(contributions, c)
+	}
+
 	if err := Remove(descriptor, RemovedFiles); err != nil {
 		return err
 	}

octo/update-go.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [ -z "${GO_VERSION:-}" ]; then
+    echo "No go version set"
+    exit 1
+fi
+
+OLD_GO_VERSION=$(grep -P '^go \d\.\d+' go.mod | cut -d ' ' -f 2)
+
+go mod edit -go="$GO_VERSION"
+go mod tidy
+go get -u all
+go mod tidy
+
+git add go.mod go.sum
+git checkout -- .
+
+echo "::set-output name=old-go-version::${OLD_GO_VERSION}"
+echo "::set-output name=go-version::${GO_VERSION}"

octo/update_go.go

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2018-2020 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package octo
+
+import (
+	"fmt"
+
+	"github.com/paketo-buildpacks/pipeline-builder/octo/actions"
+	"github.com/paketo-buildpacks/pipeline-builder/octo/actions/event"
+)
+
+func ContributeUpdateGo(descriptor Descriptor) (Contribution, error) {
+	w := actions.Workflow{
+		Name: "Update Go",
+		On: map[event.Type]event.Event{
+			event.ScheduleType:         event.Schedule{{Minute: "0", Hour: "2", DayOfWeek: "1"}},
+			event.WorkflowDispatchType: event.WorkflowDispatch{},
+		},
+		Jobs: map[string]actions.Job{
+			"update": {
+				Name:   "Update Go",
+				RunsOn: []actions.VirtualEnvironment{actions.UbuntuLatest},
+				Steps: []actions.Step{
+					{
+						Uses: "actions/setup-go@v3",
+						With: map[string]interface{}{"go-version": GoVersion},
+					},
+					{
+						Uses: "actions/checkout@v3",
+					},
+					{
+						Id:   "update-go",
+						Name: "Update Go Version",
+						Run:  StatikString("/update-go.sh"),
+						Env: map[string]string{
+							"GO_VERSION": GoVersion,
+						},
+					},
+					{
+						Uses: "peter-evans/create-pull-request@v4",
+						With: map[string]interface{}{
+							"token":  descriptor.GitHub.Token,
+							"author": fmt.Sprintf("%[1]s <%[1][email protected]>", descriptor.GitHub.Username),
+							"commit-message": `Bump Go from ${{ steps.update-go.outputs.old-go-version }} to ${{ steps.update-go.outputs.go-version }}
+
+Bumps Go from ${{ steps.update-go.outputs.old-go-version }} to ${{ steps.update-go.outputs.go-version }}.`,
+							"signoff":       true,
+							"branch":        "update/go",
+							"delete-branch": true,
+							"title":         "Bump Go from ${{ steps.update-go.outputs.old-go-version }} to ${{ steps.update-go.outputs.go-version }}",
+							"body":          "Bumps Go from `${{ steps.update-go.outputs.old-go-version }}` to `${{ steps.update-go.outputs.go-version }}`.\n\n<details>\n<summary>Release Notes</summary>\n${{ steps.pipeline.outputs.release-notes }}\n</details>",
+							"labels":        "semver:minor, type:task",
+						},
+					},
+				},
+			},
+		},
+	}
+
+	return NewActionContribution(w)
+}