fix: correctly unmarshal entrypoint (#876)

Signed-off-by: hackercat <me@hackerc.at>

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/model/action.go

@@ -47,7 +47,7 @@ type ActionRuns struct {
 	Env        map[string]string `yaml:"env"`
 	Main       string            `yaml:"main"`
 	Image      string            `yaml:"image"`
-	Entrypoint []string          `yaml:"entrypoint"`
+	Entrypoint string            `yaml:"entrypoint"`
 	Args       []string          `yaml:"args"`
 	Steps      []Step            `yaml:"steps"`
 }

pkg/runner/step_context.go

@@ -527,6 +527,8 @@ func (sc *StepContext) runAction(actionDir string, actionPath string, localActio
 	}
 }
 
+// TODO: break out parts of function to reduce complexicity
+// nolint:gocyclo
 func (sc *StepContext) execAsDocker(ctx context.Context, action *model.Action, actionName string, containerLocation string, actionLocation string, rc *RunContext, step *model.Step, localAction bool) error {
 	var prepImage common.Executor
 	var image string
@@ -589,7 +591,14 @@ func (sc *StepContext) execAsDocker(ctx context.Context, action *model.Action, a
 	}
 	entrypoint := strings.Fields(step.With["entrypoint"])
 	if len(entrypoint) == 0 {
-		entrypoint = action.Runs.Entrypoint
+		if action.Runs.Entrypoint != "" {
+			entrypoint, err = shellquote.Split(action.Runs.Entrypoint)
+			if err != nil {
+				return err
+			}
+		} else {
+			entrypoint = nil
+		}
 	}
 	stepContainer := sc.newStepContainer(ctx, image, cmd, entrypoint)
 	return common.NewPipelineExecutor(

pkg/runner/testdata/actions/docker-url/action.yml

@@ -9,6 +9,7 @@ inputs:
 runs:
   using: docker
   image: docker://node:12-buster-slim
+  entrypoint: /bin/sh -c
   env:
     TEST: enabled
   args: