github.com/paketoio/libpak@v1.3.1/sherpa/sherpa.go (about)

     1  /*
     2   * Copyright 2018-2020 the original author or authors.
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *      https://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package sherpa
    18  
    19  import (
    20  	"github.com/paketoio/libpak/internal"
    21  )
    22  
    23  // ExecuteFunc is the callback function for buildpack helper application implementations.
    24  type ExecuteFunc func() error
    25  
    26  // Execute is called by the main function of a buildpack helper application, for execution.
    27  func Execute(f ExecuteFunc, options ...Option) {
    28  	config := Config{
    29  		exitHandler: internal.NewExitHandler(),
    30  	}
    31  
    32  	for _, option := range options {
    33  		config = option(config)
    34  	}
    35  
    36  	if err := f(); err != nil {
    37  		config.exitHandler.Error(err)
    38  		return
    39  	}
    40  }