1 /* 2 Copyright 2018 The Kubernetes 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 http://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 cov 18 19 import ( 20 "golang.org/x/tools/cover" 21 "regexp" 22 "strings" 23 ) 24 25 // FilterProfilePaths produces a new profile that removes either everything matching or everything 26 // not matching the provided paths, depending on the value of include. 27 // Paths are interpreted as regular expressions. 28 // If include is true, paths is treated as an allowlist; otherwise it is treated as a denylist. 29 func FilterProfilePaths(profile []*cover.Profile, paths []string, include bool) ([]*cover.Profile, error) { 30 parenPaths := make([]string, len(paths)) 31 for i, path := range paths { 32 parenPaths[i] = "(" + path + ")" 33 } 34 joined := strings.Join(parenPaths, "|") 35 re, err := regexp.Compile(joined) 36 if err != nil { 37 return nil, err 38 } 39 result := make([]*cover.Profile, 0, len(profile)) 40 for _, p := range profile { 41 if re.MatchString(p.FileName) == include { 42 result = append(result, p) 43 } 44 } 45 return result, nil 46 } 47