Upgrade dependent version: github.com/open-policy-agent/opa (#5315)

Upgrade dependent version: github.com/open-policy-agent/opa v0.18.0 -> v0.45.0

Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>

Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>

vendor/github.com/open-policy-agent/opa/topdown/semver.go

@@ -0,0 +1,59 @@
+// Copyright 2020 The OPA Authors.  All rights reserved.
+// Use of this source code is governed by an Apache2
+// license that can be found in the LICENSE file.
+
+package topdown
+
+import (
+	"fmt"
+
+	"github.com/open-policy-agent/opa/ast"
+	"github.com/open-policy-agent/opa/internal/semver"
+	"github.com/open-policy-agent/opa/topdown/builtins"
+)
+
+func builtinSemVerCompare(bctx BuiltinContext, args []*ast.Term, iter func(*ast.Term) error) error {
+	versionStringA, err := builtins.StringOperand(args[0].Value, 1)
+	if err != nil {
+		return err
+	}
+
+	versionStringB, err := builtins.StringOperand(args[1].Value, 2)
+	if err != nil {
+		return err
+	}
+
+	versionA, err := semver.NewVersion(string(versionStringA))
+	if err != nil {
+		return fmt.Errorf("operand 1: string %s is not a valid SemVer", versionStringA)
+	}
+	versionB, err := semver.NewVersion(string(versionStringB))
+	if err != nil {
+		return fmt.Errorf("operand 2: string %s is not a valid SemVer", versionStringB)
+	}
+
+	result := versionA.Compare(*versionB)
+
+	return iter(ast.IntNumberTerm(result))
+}
+
+func builtinSemVerIsValid(bctx BuiltinContext, args []*ast.Term, iter func(*ast.Term) error) error {
+	versionString, err := builtins.StringOperand(args[0].Value, 1)
+	if err != nil {
+		return iter(ast.BooleanTerm(false))
+	}
+
+	result := true
+
+	_, err = semver.NewVersion(string(versionString))
+	if err != nil {
+		result = false
+	}
+
+	return iter(ast.BooleanTerm(result))
+}
+
+func init() {
+	RegisterBuiltinFunc(ast.SemVerCompare.Name, builtinSemVerCompare)
+	RegisterBuiltinFunc(ast.SemVerIsValid.Name, builtinSemVerIsValid)
+}