github.com/paketo-buildpacks/libpak@v1.70.0/cmd/update-build-image-dependency/main.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 main
    18  
    19  import (
    20  	"fmt"
    21  	"log"
    22  	"os"
    23  
    24  	"github.com/spf13/pflag"
    25  
    26  	"github.com/paketo-buildpacks/libpak/carton"
    27  )
    28  
    29  func main() {
    30  	i := carton.BuildImageDependency{}
    31  
    32  	flagSet := pflag.NewFlagSet("Update Image Dependency", pflag.ExitOnError)
    33  	flagSet.StringVar(&i.BuilderPath, "builder-toml", "", "path to builder.toml")
    34  	flagSet.StringVar(&i.Version, "version", "", "the new version of the dependency")
    35  
    36  	if err := flagSet.Parse(os.Args[1:]); err != nil {
    37  		log.Fatal(fmt.Errorf("unable to parse flags\n%w", err))
    38  	}
    39  
    40  	if i.BuilderPath == "" {
    41  		log.Fatal("builder-toml must be set")
    42  	}
    43  
    44  	if i.Version == "" {
    45  		log.Fatal("version must be set")
    46  	}
    47  
    48  	i.Update()
    49  }