Dependency Updater: Github Action Workflow for Scheduled Updater Runs

.github/workflows/update-dependencies.yml

@@ -0,0 +1,45 @@
+name: Update Dockerfile Dependencies
+on:
+  schedule:
+    - cron: '0 12 * * * *'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  update:
+    name: update
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: main
+
+      - name: build dependency updater
+        run: cd dependency_updater && go build
+
+      - name: run dependency updater
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: cd dependency_updater && ./dependency_updater --repo ../ --github-action true
+
+      - name: Load .env file
+        uses: aarcangeli/load-dotenv@v1.1.0
+        with:
+          filenames: 'commit_message.env'
+
+      - name: view env
+        run: echo ${{ env.TITLE }}
+
+      - name: create pull request
+        uses: peter-evans/create-pull-request@v7.0.8
+        with:
+          author: ${{ github.actor }} <${{ github.actor_id }}+${{ github.actor }}@users.noreply.github.com>
+          committer: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
+          title: ${{ env.TITLE }}
+          commit-message: ${{ env.TITLE }}
+          body: ${{ env.DESC }}
+          branch: run-dependency-updater
+          delete-branch: true

dependency_updater/dependency_updater.go

@@ -57,9 +57,14 @@ func main() {
 				Usage:    "Stages updater changes and creates commit message",
 				Required: false,
 			},
+			&cli.BoolFlag{
+				Name:     "github-action",
+				Usage:    "Specifies whether tool is being used through github action workflow",
+				Required: false,
+			},
 		},
 		Action: func(ctx context.Context, cmd *cli.Command) error {
-			err := updater(string(cmd.String("token")), string(cmd.String("repo")), cmd.Bool("commit"))
+			err := updater(string(cmd.String("token")), string(cmd.String("repo")), cmd.Bool("commit"), cmd.Bool("github-action"))
 			if err != nil {
 				return fmt.Errorf("error running updater: %s", err)
 			}
@@ -72,7 +77,7 @@ func main() {
 	}
 }
 
-func updater(token string, repoPath string, commit bool) error {
+func updater(token string, repoPath string, commit bool, githubAction bool) error {
 	var err error
 	var dependencies Dependencies
 	var updatedDependencies []VersionUpdateInfo
@@ -111,8 +116,8 @@ func updater(token string, repoPath string, commit bool) error {
 		}
 	}
 
-	if commit && updatedDependencies != nil {
-		err := createCommitMessage(updatedDependencies)
+	if (commit && updatedDependencies != nil) || (githubAction && updatedDependencies != nil) {
+		err := createCommitMessage(updatedDependencies, repoPath, githubAction)
 		if err != nil {
 			return fmt.Errorf("error creating commit message: %s", err)
 		}
@@ -126,7 +131,7 @@ func updater(token string, repoPath string, commit bool) error {
 	return nil
 }
 
-func createCommitMessage(updatedDependencies []VersionUpdateInfo) error {
+func createCommitMessage(updatedDependencies []VersionUpdateInfo, repoPath string, githubAction bool) error {
 	var repos []string
 	commitTitle := "chore: updated "
 	commitDescription := "Updated dependencies for: \n"
@@ -136,12 +141,20 @@ func createCommitMessage(updatedDependencies []VersionUpdateInfo) error {
 		commitDescription += repo + " => " + tag + " (" + dependency.DiffUrl + ")" + "\n"
 		repos = append(repos, repo)
 	}
+	commitDescription = strings.TrimSuffix(commitDescription, "\n")
 
-	commitTitle += strings.Join(repos, ", ")
-	cmd := exec.Command("git", "commit", "-am", commitTitle, "-m", commitDescription)
-
-	if err := cmd.Run(); err != nil {
-		return fmt.Errorf("error running git commit -m: %s", err)
+	if githubAction {
+		commitTitle += strings.Join(repos, ", ")
+		commitDescription = "\"" + commitDescription + "\""
+		err := createGitMessageEnv(commitTitle, commitDescription, repoPath)
+		if err != nil {
+			return fmt.Errorf("error creating git commit message: %s", err)
+		}
+	} else if !githubAction {
+		cmd := exec.Command("git", "commit", "-am", commitTitle, "-m", commitDescription)
+		if err := cmd.Run(); err != nil {
+			return fmt.Errorf("error running git commit -m: %s", err)
+		}
 	}
 	return nil
 }
@@ -220,11 +233,11 @@ func getVersionAndCommit(ctx context.Context, client *github.Client, dependencie
 
 	if dependencies[dependencyType].Tracking == "tag" {
 		versionCommit, _, err := client.Repositories.GetCommit(
-		ctx,
-		dependencies[dependencyType].Owner,
-		dependencies[dependencyType].Repo,
-		"refs/tags/"+*version.TagName,
-		&github.ListOptions{})
+			ctx,
+			dependencies[dependencyType].Owner,
+			dependencies[dependencyType].Repo,
+			"refs/tags/"+*version.TagName,
+			&github.ListOptions{})
 		if err != nil {
 			return "", "", VersionUpdateInfo{}, fmt.Errorf("error getting commit for "+dependencyType+": %s", err)
 		}
@@ -264,7 +277,7 @@ func updateVersionTagAndCommit(
 	if err != nil {
 		return fmt.Errorf("error writing to versions "+dependencyType+": %s", err)
 	}
-	
+
 	return nil
 }
 
@@ -318,6 +331,21 @@ func createVersionsEnv(repoPath string, dependencies Dependencies) error {
 	return nil
 }
 
+func createGitMessageEnv(title string, description string, repoPath string) error {
+	file, err := os.Create(repoPath + "/commit_message.env")
+	if err != nil {
+		return fmt.Errorf("error creating git_commit_message.env file: %s", err)
+	}
+	defer file.Close()
+
+	envString := "export TITLE=" + title + "\nexport DESC=" + description
+	_, err = file.WriteString(envString)
+	if err != nil {
+		return fmt.Errorf("error writing to git_commit_message.env file: %s", err)
+	}
+	return nil
+}
+
 func generateGithubRepoUrl(dependencies Dependencies, dependencyType string) string {
 	return "https://github.com/" + dependencies[dependencyType].Owner + "/" + dependencies[dependencyType].Repo
-}
+}