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detect.go
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detect.go
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/*
* Copyright 2018-2020 the original author or 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
*
* https://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 detect
import (
"github.com/buildpack/libbuildpack/detect"
"github.com/cloudfoundry/libcfbuildpack/buildpack"
"github.com/cloudfoundry/libcfbuildpack/logger"
"github.com/cloudfoundry/libcfbuildpack/runner"
"github.com/cloudfoundry/libcfbuildpack/services"
)
// Detect is an extension to libbuildpack.Detect that allows additional functionality to be added.
type Detect struct {
detect.Detect
// Buildpack represents the metadata associated with a buildpack.
Buildpack buildpack.Buildpack
// Logger is used to write debug and info to the console.
Logger logger.Logger
// Runner is used to run commands outside of the process.
Runner runner.Runner
// Services represents the services bound to the application.
Services services.Services
}
// DefaultDetect creates a new instance of Detect using default values. During initialization, all platform environment
// variables are set in the current process environment.
func DefaultDetect() (Detect, error) {
d, err := detect.DefaultDetect()
if err != nil {
return Detect{}, err
}
logger := logger.Logger{Logger: d.Logger}
buildpack := buildpack.NewBuildpack(d.Buildpack, logger)
services := services.Services{Services: d.Services}
return Detect{
d,
buildpack,
logger,
runner.CommandRunner{},
services,
}, nil
}