github.com/abayer/test-infra@v0.0.5/mungegithub/mungers/lgtm_after_commit.go (about)

     1  /*
     2  Copyright 2015 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 mungers
    18  
    19  import (
    20  	"fmt"
    21  	"regexp"
    22  
    23  	"k8s.io/apimachinery/pkg/util/sets"
    24  	"k8s.io/test-infra/mungegithub/features"
    25  	"k8s.io/test-infra/mungegithub/github"
    26  	"k8s.io/test-infra/mungegithub/mungers/mungerutil"
    27  	"k8s.io/test-infra/mungegithub/options"
    28  
    29  	"github.com/golang/glog"
    30  	githubapi "github.com/google/go-github/github"
    31  )
    32  
    33  const (
    34  	lgtmRemovedBody = "/lgtm cancel //PR changed after LGTM, removing LGTM. %s"
    35  )
    36  
    37  var (
    38  	lgtmRemovedRegex = regexp.MustCompile("/lgtm cancel //PR changed after LGTM, removing LGTM.")
    39  )
    40  
    41  // LGTMAfterCommitMunger will remove the LGTM flag from an PR which has been
    42  // updated since the reviewer added LGTM
    43  type LGTMAfterCommitMunger struct{}
    44  
    45  func init() {
    46  	l := LGTMAfterCommitMunger{}
    47  	RegisterMungerOrDie(l)
    48  	RegisterStaleIssueComments(l)
    49  }
    50  
    51  // Name is the name usable in --pr-mungers
    52  func (LGTMAfterCommitMunger) Name() string { return "lgtm-after-commit" }
    53  
    54  // RequiredFeatures is a slice of 'features' that must be provided
    55  func (LGTMAfterCommitMunger) RequiredFeatures() []string { return []string{} }
    56  
    57  // Initialize will initialize the munger
    58  func (LGTMAfterCommitMunger) Initialize(config *github.Config, features *features.Features) error {
    59  	return nil
    60  }
    61  
    62  // EachLoop is called at the start of every munge loop
    63  func (LGTMAfterCommitMunger) EachLoop() error { return nil }
    64  
    65  // RegisterOptions registers options for this munger; returns any that require a restart when changed.
    66  func (LGTMAfterCommitMunger) RegisterOptions(opts *options.Options) sets.String { return nil }
    67  
    68  // Munge is the workhorse the will actually make updates to the PR
    69  func (LGTMAfterCommitMunger) Munge(obj *github.MungeObject) {
    70  	if !obj.IsPR() {
    71  		return
    72  	}
    73  
    74  	if !obj.HasLabel(lgtmLabel) {
    75  		return
    76  	}
    77  
    78  	lastModified, ok := obj.LastModifiedTime()
    79  	lgtmTime, ok2 := obj.LabelTime(lgtmLabel)
    80  
    81  	if !ok || !ok2 || lastModified == nil || lgtmTime == nil {
    82  		glog.Errorf("PR %d unable to determine lastModified or lgtmTime", *obj.Issue.Number)
    83  		return
    84  	}
    85  
    86  	if lastModified.After(*lgtmTime) {
    87  		glog.Infof("PR: %d lgtm:%s  lastModified:%s", *obj.Issue.Number, lgtmTime.String(), lastModified.String())
    88  		body := fmt.Sprintf(lgtmRemovedBody, mungerutil.GetIssueUsers(obj.Issue).AllUsers().Mention().Join())
    89  		if err := obj.WriteComment(body); err != nil {
    90  			return
    91  		}
    92  		obj.RemoveLabel(lgtmLabel)
    93  	}
    94  }
    95  
    96  func (LGTMAfterCommitMunger) isStaleIssueComment(obj *github.MungeObject, comment *githubapi.IssueComment) bool {
    97  	if !obj.IsRobot(comment.User) {
    98  		return false
    99  	}
   100  	if !lgtmRemovedRegex.MatchString(*comment.Body) {
   101  		return false
   102  	}
   103  	if !obj.HasLabel(lgtmLabel) {
   104  		return false
   105  	}
   106  	lgtmTime, ok := obj.LabelTime(lgtmLabel)
   107  	if lgtmTime == nil || !ok {
   108  		return false
   109  	}
   110  	stale := lgtmTime.After(*comment.CreatedAt)
   111  	if stale {
   112  		glog.V(6).Infof("Found stale LGTMAfterCommitMunger comment")
   113  	}
   114  	return stale
   115  }
   116  
   117  // StaleIssueComments returns a list of stale issue comments.
   118  func (l LGTMAfterCommitMunger) StaleIssueComments(obj *github.MungeObject, comments []*githubapi.IssueComment) []*githubapi.IssueComment {
   119  	return forEachCommentTest(obj, comments, l.isStaleIssueComment)
   120  }