Vendor in containers/(storage,image, common, buildah)

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

vendor/github.com/containers/common/pkg/hooks/0.1.0/hook.go

@@ -0,0 +1,88 @@
+// Package hook is the 0.1.0 hook configuration structure.
+package hook
+
+import (
+	"encoding/json"
+	"errors"
+	"strings"
+
+	current "github.com/containers/common/pkg/hooks/1.0.0"
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// Version is the hook configuration version defined in this package.
+const Version = "0.1.0"
+
+// Hook is the hook configuration structure.
+type Hook struct {
+	Hook      *string  `json:"hook"`
+	Arguments []string `json:"arguments,omitempty"`
+
+	// https://github.com/cri-o/cri-o/pull/1235
+	Stages []string `json:"stages"`
+	Stage  []string `json:"stage"`
+
+	Cmds []string `json:"cmds,omitempty"`
+	Cmd  []string `json:"cmd,omitempty"`
+
+	Annotations []string `json:"annotations,omitempty"`
+	Annotation  []string `json:"annotation,omitempty"`
+
+	HasBindMounts *bool `json:"hasbindmounts,omitempty"`
+}
+
+func Read(content []byte) (hook *current.Hook, err error) {
+	var raw Hook
+
+	if err = json.Unmarshal(content, &raw); err != nil {
+		return nil, err
+	}
+
+	if raw.Hook == nil {
+		return nil, errors.New("missing required property: hook")
+	}
+
+	if raw.Stages == nil {
+		raw.Stages = raw.Stage
+	} else if raw.Stage != nil {
+		return nil, errors.New("cannot set both 'stage' and 'stages'")
+	}
+	if raw.Stages == nil {
+		return nil, errors.New("missing required property: stages")
+	}
+
+	if raw.Cmds == nil {
+		raw.Cmds = raw.Cmd
+	} else if raw.Cmd != nil {
+		return nil, errors.New("cannot set both 'cmd' and 'cmds'")
+	}
+
+	if raw.Annotations == nil {
+		raw.Annotations = raw.Annotation
+	} else if raw.Annotation != nil {
+		return nil, errors.New("cannot set both 'annotation' and 'annotations'")
+	}
+
+	hook = &current.Hook{
+		Version: current.Version,
+		Hook: rspec.Hook{
+			Path: *raw.Hook,
+		},
+		When: current.When{
+			Commands:      raw.Cmds,
+			HasBindMounts: raw.HasBindMounts,
+			Or:            true,
+		},
+		Stages: raw.Stages,
+	}
+	if raw.Arguments != nil {
+		hook.Hook.Args = append([]string{*raw.Hook}, raw.Arguments...)
+	}
+	if raw.Annotations != nil {
+		hook.When.Annotations = map[string]string{
+			".*": strings.Join(raw.Annotations, "|"),
+		}
+	}
+
+	return hook, nil
+}