SampleContext using Opts pattern

context.go

// Copyright 2020 The Operator-SDK Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package pkg

import (
	"fmt"
	"path/filepath"
	"strings"

	"github.com/operator-framework/operator-sdk/test/utils"
)

// SampleContext represents the Context used to generate the samples
type SampleContext struct {
	utils.TestContext
}

type SampleContextOpts func(s *SampleContext) error

func NewSampleContext(binary string, opts ...SampleContextOpts) (SampleContext, error) {
	s := SampleContext{}
	for _, o := range opts {
		if err := o(&s); err != nil {
			return s, err 
		}   
	}   

	return s, nil
}

func WithEnvironment(binary string, env ...string) SampleContextOpts {
	return func(s *SampleContext) error {
		var err error
		s.TestContext, err = utils.NewTestContext(binary, env...)
		return err
	}
}

func WithPath(path string) SampleContextOpts {
	return func(s *SampleContext) error {
		if strings.TrimSpace(path) != "" {
			path, err := filepath.Abs(path)
			if err != nil {
				return err
			}
			s.CmdContext.Dir = path
			s.ProjectName = strings.ToLower(filepath.Base(s.Dir))
			s.ImageName = fmt.Sprintf("quay.io/example/%s:v0.0.1", s.ProjectName)
			s.BundleImageName = fmt.Sprintf("quay.io/example/%s-bundle:v0.0.1", s.ProjectName)
		}
	}
}

func WithTestContext(tc *utils.TestContext) SampleContextOpts {
	return func(s *SampleContext) error {
		s.TestContext = *tc
		return nil
	}
}