support input

Author: v1v

action.yaml

@@ -7,9 +7,13 @@ inputs:
   headers:
     description: "Headers to configure gRPC metadata"
     required: false
+  repo-token:
+    description: 'The GITHUB_TOKEN secret'
+    required: false
 runs:
   using: "docker"
   image: "Dockerfile"
   env:
     OTEL_EXPORTER_OTLP_ENDPOINT: ${{ inputs.endpoint }}
     OTEL_EXPORTER_OTLP_HEADERS: ${{ inputs.headers }}
+    GITHUB_TOKEN: ${{ inputs.repo-token }}

main.go

@@ -36,17 +36,19 @@ type actionConfig struct {
 
 func getSteps(ctx context.Context, conf actionConfig) error {
 	tracer := otel.Tracer(conf.githubRepository)
+	client := github.NewClient(nil)
+
 	// login using the GITHUB_TOKEN coming from the jobs
 	// as per https://docs.github.com/en/actions/security-guides/automatic-token-authentication
 	githubToken, ok := os.LookupEnv("GITHUB_TOKEN")
-	if !ok {
-		return errors.New("missing variable: GITHUB_TOKEN")
+	if ok {
+		ts := oauth2.StaticTokenSource(
+			&oauth2.Token{AccessToken: githubToken},
+		)
+		tc := oauth2.NewClient(ctx, ts)
+		client = github.NewClient(tc)
 	}
-	ts := oauth2.StaticTokenSource(
-		&oauth2.Token{AccessToken: githubToken},
-	)
-	tc := oauth2.NewClient(ctx, ts)
-	client := github.NewClient(tc)
+
 	id, err := strconv.ParseInt(conf.runID, 10, 64)
 	if err != nil {
 		return err