ceph-csi/actions/retest/main.go

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/*
Copyright 2021 The Ceph-CSI Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package main
import (
"context"
"errors"
"fmt"
"log"
"os"
"strconv"
"strings"
"github.com/google/go-github/github"
"golang.org/x/oauth2"
)
var (
totalRequiredReviews int
retry int
)
type retestConfig struct {
retryLimit string
requiredReviewCount string
exemptlabel string
requiredlabel string
githubToken string
owner string
repo string
client *github.Client
}
// standard input env variables in action more details at
// https://docs.github.com/en/actions/creating-actions/metadata-syntax-for-github-actions#inputs
func getConfig() *retestConfig {
c := &retestConfig{}
c.retryLimit = os.Getenv("INPUT_MAX-RETRY")
c.requiredReviewCount = os.Getenv("INPUT_REQUIRED-APPROVE-COUNT")
c.exemptlabel = os.Getenv("INPUT_EXEMPT-LABEL")
c.requiredlabel = os.Getenv("INPUT_REQUIRED-LABEL")
c.githubToken = os.Getenv("GITHUB_TOKEN")
c.owner, c.repo = func() (string, string) {
if os.Getenv("GITHUB_REPOSITORY") != "" {
if len(strings.Split(os.Getenv("GITHUB_REPOSITORY"), "/")) == 2 {
return strings.Split(os.Getenv("GITHUB_REPOSITORY"), "/")[0], strings.Split(os.Getenv("GITHUB_REPOSITORY"), "/")[1]
}
}
return "", ""
}()
return c
}
// validate validates the input parameters.
func (c retestConfig) validate() error {
if c.requiredlabel == "" {
return errors.New("required-label is not set")
}
if c.githubToken == "" {
return errors.New("GITHUB_TOKEN is not set")
}
if c.owner == "" || c.repo == "" {
return errors.New("GITHUB_REPOSITORY is not set")
}
return nil
}
// createClient creates a new secure client.
func (c *retestConfig) createClient() {
ts := oauth2.StaticTokenSource(
&oauth2.Token{AccessToken: c.githubToken},
)
tc := oauth2.NewClient(context.TODO(), ts)
c.client = github.NewClient(tc)
}
func main() {
var err error
c := getConfig()
if err = c.validate(); err != nil {
log.Fatalf("%v", err)
}
retry, err = strconv.Atoi(c.retryLimit)
if err != nil {
log.Fatalf("max-retry %q is not valid", c.retryLimit)
}
totalRequiredReviews, err = strconv.Atoi(c.requiredReviewCount)
if err != nil {
log.Fatalf("required-review-count %q is not valid", c.requiredReviewCount)
}
c.createClient()
opt := &github.PullRequestListOptions{}
req, _, err := c.client.PullRequests.List(context.TODO(), c.owner, c.repo, opt)
if err != nil {
log.Fatalf("failed to list pull requests %v\n", err)
}
for _, re := range req {
if *re.State == "open" {
prNumber := re.GetNumber()
log.Printf("PR with ID %d with Title %q is open\n", prNumber, re.GetTitle())
for _, l := range re.Labels {
// check if label is exempt
if strings.EqualFold(c.exemptlabel, l.GetName()) {
continue
}
// check if label is matching
if !strings.EqualFold(c.requiredlabel, l.GetName()) {
continue
}
// check if PR has required approvals
if !c.checkPRRequiredApproval(prNumber) {
continue
}
log.Printf("checking status for PR %d with label %s", prNumber, l.GetName())
rs, _, err := c.client.Repositories.ListStatuses(context.TODO(), c.owner, c.repo, re.GetHead().GetSHA(), &github.ListOptions{})
if err != nil {
log.Printf("failed to list status %v\n", err)
continue
}
statusList := filterStatusList(rs)
failedTestFound := false
for _, r := range statusList {
log.Printf("found context %s with status %s\n", r.GetContext(), r.GetState())
if contains([]string{"failed", "failure"}, r.GetState()) {
log.Printf("found failed test %s\n", r.GetContext())
// check if retest limit is reached
msg := fmt.Sprintf("/retest %s", r.GetContext())
ok, err := c.checkRetestLimitReached(prNumber, msg)
if err != nil {
log.Printf("failed to check retest limit %v\n", err)
continue
}
if ok {
log.Printf("Pull Request %d: %q reached maximum attempt. skipping retest %v\n", prNumber, r.GetContext(), retry)
continue
}
comment := &github.IssueComment{
Body: github.String(msg),
}
_, _, err = c.client.Issues.CreateComment(context.TODO(), c.owner, c.repo, prNumber, comment)
if err != nil {
log.Printf("failed to create comment %v\n", err)
continue
}
//Post comment with target URL for retesting
msg = fmt.Sprintf("@%s %q test failed. Logs are available at [location](%s) for debugging", re.GetUser().GetLogin(), r.GetContext(), r.GetTargetURL())
comment.Body = github.String(msg)
_, _, err = c.client.Issues.CreateComment(context.TODO(), c.owner, c.repo, prNumber, comment)
if err != nil {
log.Printf("failed to create comment %v\n", err)
continue
}
failedTestFound = true
}
}
if failedTestFound {
// comment `@Mergifyio refresh` so mergifyio adds the pr back into the queue.
msg := "@Mergifyio refresh"
comment := &github.IssueComment{
Body: github.String(msg),
}
_, _, err = c.client.Issues.CreateComment(context.TODO(), c.owner, c.repo, prNumber, comment)
if err != nil {
log.Printf("failed to create comment %q: %v\n", msg, err)
continue
}
}
}
}
}
}
// checkPRRequiredApproval check PullRequest has required approvals.
func (c *retestConfig) checkPRRequiredApproval(prNumber int) bool {
rev, _, err := c.client.PullRequests.ListReviews(context.TODO(), c.owner, c.repo, prNumber, &github.ListOptions{})
if err != nil {
log.Printf("failed to list reviews %v\n", err)
return false
}
approvedReviews := 0
for _, rv := range rev {
if rv.GetState() == "APPROVED" {
approvedReviews += 1
}
}
if !(approvedReviews >= totalRequiredReviews) {
log.Printf("total approved reviews for PR %d are %d but required %d", prNumber, approvedReviews, totalRequiredReviews)
return false
}
return true
}
// checkRetestLimitReached check if retest limit is reached.
func (c *retestConfig) checkRetestLimitReached(prNumber int, msg string) (bool, error) {
creq, _, err := c.client.Issues.ListComments(context.TODO(), c.owner, c.repo, prNumber, &github.IssueListCommentsOptions{})
if err != nil {
return false, err
}
retestCount := 0
for _, pc := range creq {
if pc.GetBody() == msg {
retestCount += 1
}
}
log.Printf("found %d retries and remaining %d retries\n", retestCount, retry-retestCount)
if retestCount >= int(retry) {
return true, nil
}
return false, nil
}
// containers check if slice contains string.
func contains(s []string, e string) bool {
for _, a := range s {
if a == e {
return true
}
}
return false
}
// filterStatusesList returns list of unique and recently updated github RepoStatuses.
// Raw github RepoStatus list may contain duplicate and older statuses.
func filterStatusList(rawStatusList []*github.RepoStatus) []*github.RepoStatus {
testStatus := make(map[string]*github.RepoStatus)
for _, r := range rawStatusList {
status, ok := testStatus[r.GetContext()]
if !ok || r.GetUpdatedAt().After(status.GetUpdatedAt()) {
testStatus[r.GetContext()] = r
}
}
statusList := make([]*github.RepoStatus, 0)
for _, rs := range testStatus {
statusList = append(statusList, rs)
}
return statusList
}