github.com/abayer/test-infra@v0.0.5/mungegithub/mungers/matchers/comment/command.go (about) 1 /* 2 Copyright 2016 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 comment 18 19 import ( 20 "regexp" 21 "strings" 22 ) 23 24 // Command is a way for human to interact with the bot 25 type Command struct { 26 Name string 27 Arguments string 28 } 29 30 var ( 31 // Matches a command: 32 // - Line that starts with slash 33 // - followed by non-space characteres, 34 // - (optional) followed by space and arguments 35 commandRegex = regexp.MustCompile(`(?m)^/([^\s]+)[\t ]*([^\n\r]*)`) 36 ) 37 38 // ParseCommands attempts to read a command from a comment 39 // Returns nil if the comment doesn't contain a command 40 func ParseCommands(comment *Comment) []*Command { 41 if comment == nil || comment.Body == nil { 42 return nil 43 } 44 45 commands := []*Command{} 46 matches := commandRegex.FindAllStringSubmatch(*comment.Body, -1) 47 for _, match := range matches { 48 commands = append(commands, &Command{ 49 Name: strings.ToUpper(match[1]), 50 Arguments: strings.TrimSpace(match[2]), 51 }) 52 } 53 54 return commands 55 } 56 57 // String displays the command 58 func (n *Command) String() string { 59 str := "/" + strings.ToUpper(n.Name) 60 args := strings.TrimSpace(n.Arguments) 61 if args != "" { 62 str += " " + args 63 } 64 return str 65 }