podman volume exists

Add podman volume exists command with remote support.

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>

3 files changed, 107 insertions, 0 deletions

diff --git a/pkg/bindings/volumes/types.go b/pkg/bindings/volumes/types.go
index 379174e33..3fda77ddd 100644
--- a/pkg/bindings/volumes/types.go
+++ b/pkg/bindings/volumes/types.go
@@ -30,3 +30,9 @@ type RemoveOptions struct {
 	// Force removes the volume even if it is being used
 	Force *bool
 }
+
+//go:generate go run ../generator/generator.go ExistsOptions
+// ExistsOptions are optional options for checking
+// if a volume exists
+type ExistsOptions struct {
+}
diff --git a/pkg/bindings/volumes/types_exists_options.go b/pkg/bindings/volumes/types_exists_options.go
new file mode 100644
index 000000000..c66586a23
--- /dev/null
+++ b/pkg/bindings/volumes/types_exists_options.go
@@ -0,0 +1,88 @@
+package volumes
+
+import (
+	"net/url"
+	"reflect"
+	"strconv"
+	"strings"
+
+	jsoniter "github.com/json-iterator/go"
+	"github.com/pkg/errors"
+)
+
+/*
+This file is generated automatically by go generate.  Do not edit.
+*/
+
+// Changed
+func (o *ExistsOptions) Changed(fieldName string) bool {
+	r := reflect.ValueOf(o)
+	value := reflect.Indirect(r).FieldByName(fieldName)
+	return !value.IsNil()
+}
+
+// ToParams
+func (o *ExistsOptions) ToParams() (url.Values, error) {
+	params := url.Values{}
+	if o == nil {
+		return params, nil
+	}
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
+	s := reflect.ValueOf(o)
+	if reflect.Ptr == s.Kind() {
+		s = s.Elem()
+	}
+	sType := s.Type()
+	for i := 0; i < s.NumField(); i++ {
+		fieldName := sType.Field(i).Name
+		if !o.Changed(fieldName) {
+			continue
+		}
+		fieldName = strings.ToLower(fieldName)
+		f := s.Field(i)
+		if reflect.Ptr == f.Kind() {
+			f = f.Elem()
+		}
+		switch f.Kind() {
+		case reflect.Bool:
+			params.Set(fieldName, strconv.FormatBool(f.Bool()))
+		case reflect.String:
+			params.Set(fieldName, f.String())
+		case reflect.Int, reflect.Int64:
+			// f.Int() is always an int64
+			params.Set(fieldName, strconv.FormatInt(f.Int(), 10))
+		case reflect.Uint, reflect.Uint64:
+			// f.Uint() is always an uint64
+			params.Set(fieldName, strconv.FormatUint(f.Uint(), 10))
+		case reflect.Slice:
+			typ := reflect.TypeOf(f.Interface()).Elem()
+			switch typ.Kind() {
+			case reflect.String:
+				sl := f.Slice(0, f.Len())
+				s, ok := sl.Interface().([]string)
+				if !ok {
+					return nil, errors.New("failed to convert to string slice")
+				}
+				for _, val := range s {
+					params.Add(fieldName, val)
+				}
+			default:
+				return nil, errors.Errorf("unknown slice type %s", f.Kind().String())
+			}
+		case reflect.Map:
+			lowerCaseKeys := make(map[string][]string)
+			iter := f.MapRange()
+			for iter.Next() {
+				lowerCaseKeys[iter.Key().Interface().(string)] = iter.Value().Interface().([]string)
+
+			}
+			s, err := json.MarshalToString(lowerCaseKeys)
+			if err != nil {
+				return nil, err
+			}
+
+			params.Set(fieldName, s)
+		}
+	}
+	return params, nil
+}
diff --git a/pkg/bindings/volumes/volumes.go b/pkg/bindings/volumes/volumes.go
index fe081eb46..60fdd0a23 100644
--- a/pkg/bindings/volumes/volumes.go
+++ b/pkg/bindings/volumes/volumes.go
@@ -114,3 +114,16 @@ func Remove(ctx context.Context, nameOrID string, options *RemoveOptions) error
 	}
 	return response.Process(nil)
 }
+
+// Exists returns true if a given volume exists
+func Exists(ctx context.Context, nameOrID string, options *ExistsOptions) (bool, error) {
+	conn, err := bindings.GetClient(ctx)
+	if err != nil {
+		return false, err
+	}
+	response, err := conn.DoRequest(nil, http.MethodGet, "/volumes/%s/exists", nil, nil, nameOrID)
+	if err != nil {
+		return false, err
+	}
+	return response.IsSuccess(), nil
+}