github.com/cloudfoundry/libcfbuildpack@v1.91.23/helper/read_buildpack_yaml.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 helper 18 19 import ( 20 "os" 21 22 "gopkg.in/yaml.v2" 23 ) 24 25 func ReadBuildpackYaml(buildpackYAMLPath string, config interface{}) error { 26 f, err := os.Open(buildpackYAMLPath) 27 if err != nil { 28 return err 29 } 30 fi, err := os.Stat(buildpackYAMLPath) 31 if err != nil { 32 return err 33 } 34 35 size := fi.Size() 36 if size == 0 { 37 return nil 38 } 39 40 dec := yaml.NewDecoder(f) 41 42 return dec.Decode(config) 43 }