Initial commit with support for GitHub actions

container/docker_pull.go

@@ -0,0 +1,55 @@
+package container
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/client"
+	"github.com/nektos/act/common"
+)
+
+// NewDockerPullExecutorInput the input for the NewDockerPullExecutor function
+type NewDockerPullExecutorInput struct {
+	DockerExecutorInput
+	Image string
+}
+
+// NewDockerPullExecutor function to create a run executor for the container
+func NewDockerPullExecutor(input NewDockerPullExecutorInput) common.Executor {
+	return func() error {
+		input.Logger.Infof("docker pull %v", input.Image)
+
+		if input.Dryrun {
+			return nil
+		}
+
+		imageRef := cleanImage(input.Image)
+		input.Logger.Debugf("pulling image '%v'", imageRef)
+
+		cli, err := client.NewClientWithOpts()
+		if err != nil {
+			return err
+		}
+
+		reader, err := cli.ImagePull(input.Ctx, imageRef, types.ImagePullOptions{})
+		input.logDockerResponse(reader, err != nil)
+		if err != nil {
+			return err
+		}
+		return nil
+
+	}
+
+}
+
+func cleanImage(image string) string {
+	imageParts := len(strings.Split(image, "/"))
+	if imageParts == 1 {
+		image = fmt.Sprintf("docker.io/library/%s", image)
+	} else if imageParts == 2 {
+		image = fmt.Sprintf("docker.io/%s", image)
+	}
+
+	return image
+}