dotcloud/docker

package environment // import "github.com/docker/docker/integration-cli/environment"

import (
    "context"
    "os"
    "os/exec"

    "github.com/docker/docker/testutil/environment"
)

// DefaultClientBinary is the name of the docker binary
var DefaultClientBinary = os.Getenv("TEST_CLIENT_BINARY")

func init() {
    if DefaultClientBinary == "" {
        DefaultClientBinary = "docker"
    }
}

// Execution contains information about the current test execution and daemon
// under test
type Execution struct {
    environment.Execution
    dockerBinary string
}

// DockerBinary returns the docker binary for this testing environment
func (e *Execution) DockerBinary() string {
    return e.dockerBinary
}

// New returns details about the testing environment
func New(ctx context.Context) (*Execution, error) {
    env, err := environment.New(ctx)
    if err != nil {
        return nil, err
    }

    dockerBinary, err := exec.LookPath(DefaultClientBinary)
    if err != nil {
        return nil, err
    }

    return &Execution{
        Execution:    *env,
        dockerBinary: dockerBinary,
    }, nil
}