libpod removal from main (phase 2)

this is phase 2 for the removal of libpod from main.

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 73 insertions, 0 deletions

diff --git a/libpod/define/containerstate.go b/libpod/define/containerstate.go
new file mode 100644
index 000000000..ab2527b3e
--- /dev/null
+++ b/libpod/define/containerstate.go
@@ -0,0 +1,73 @@
+package define
+
+import "github.com/pkg/errors"
+
+// ContainerStatus represents the current state of a container
+type ContainerStatus int
+
+const (
+	// ContainerStateUnknown indicates that the container is in an error
+	// state where information about it cannot be retrieved
+	ContainerStateUnknown ContainerStatus = iota
+	// ContainerStateConfigured indicates that the container has had its
+	// storage configured but it has not been created in the OCI runtime
+	ContainerStateConfigured ContainerStatus = iota
+	// ContainerStateCreated indicates the container has been created in
+	// the OCI runtime but not started
+	ContainerStateCreated ContainerStatus = iota
+	// ContainerStateRunning indicates the container is currently executing
+	ContainerStateRunning ContainerStatus = iota
+	// ContainerStateStopped indicates that the container was running but has
+	// exited
+	ContainerStateStopped ContainerStatus = iota
+	// ContainerStatePaused indicates that the container has been paused
+	ContainerStatePaused ContainerStatus = iota
+	// ContainerStateExited indicates the the container has stopped and been
+	// cleaned up
+	ContainerStateExited ContainerStatus = iota
+)
+
+// ContainerStatus returns a string representation for users
+// of a container state
+func (t ContainerStatus) String() string {
+	switch t {
+	case ContainerStateUnknown:
+		return "unknown"
+	case ContainerStateConfigured:
+		return "configured"
+	case ContainerStateCreated:
+		return "created"
+	case ContainerStateRunning:
+		return "running"
+	case ContainerStateStopped:
+		return "stopped"
+	case ContainerStatePaused:
+		return "paused"
+	case ContainerStateExited:
+		return "exited"
+	}
+	return "bad state"
+}
+
+// StringToContainerStatus converts a string representation of a containers
+// status into an actual container status type
+func StringToContainerStatus(status string) (ContainerStatus, error) {
+	switch status {
+	case ContainerStateUnknown.String():
+		return ContainerStateUnknown, nil
+	case ContainerStateConfigured.String():
+		return ContainerStateConfigured, nil
+	case ContainerStateCreated.String():
+		return ContainerStateCreated, nil
+	case ContainerStateRunning.String():
+		return ContainerStateRunning, nil
+	case ContainerStateStopped.String():
+		return ContainerStateStopped, nil
+	case ContainerStatePaused.String():
+		return ContainerStatePaused, nil
+	case ContainerStateExited.String():
+		return ContainerStateExited, nil
+	default:
+		return ContainerStateUnknown, errors.Wrapf(ErrInvalidArg, "unknown container state: %s", status)
+	}
+}