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step_changelog.go
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step_changelog.go
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package cmd
import (
"bufio"
"bytes"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"regexp"
"strings"
"text/template"
"time"
"github.com/ghodss/yaml"
"github.com/jenkins-x/jx/pkg/apis/jenkins.io"
"github.com/jenkins-x/jx/pkg/apis/jenkins.io/v1"
"github.com/jenkins-x/jx/pkg/gits"
"github.com/jenkins-x/jx/pkg/issues"
"github.com/jenkins-x/jx/pkg/jx/cmd/templates"
"github.com/jenkins-x/jx/pkg/kube"
"github.com/jenkins-x/jx/pkg/util"
"github.com/spf13/cobra"
"gopkg.in/src-d/go-git.v4/plumbing/object"
chgit "github.com/jenkins-x/chyle/chyle/git"
cmdutil "github.com/jenkins-x/jx/pkg/jx/cmd/util"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// StepChangelogOptions contains the command line flags
type StepChangelogOptions struct {
StepOptions
PreviousRevision string
PreviousDate string
CurrentRevision string
TemplatesDir string
ReleaseYamlFile string
CrdYamlFile string
Dir string
Version string
Header string
HeaderFile string
Footer string
FooterFile string
OutputMarkdownFile string
OverwriteCRD bool
GenerateCRD bool
GenerateReleaseYaml bool
UpdateRelease bool
State StepChangelogState
}
type StepChangelogState struct {
GitInfo *gits.GitRepositoryInfo
GitProvider gits.GitProvider
Tracker issues.IssueProvider
FoundIssueNames map[string]bool
LoggedIssueKind bool
Release *v1.Release
}
const (
ReleaseName = `{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}`
SpecName = `{{ .Chart.Name }}`
SpecVersion = `{{ .Chart.Version }}`
ReleaseCrdYaml = `apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
creationTimestamp: 2018-02-24T14:56:33Z
name: releases.jenkins.io
resourceVersion: "557150"
selfLink: /apis/apiextensions.k8s.io/v1beta1/customresourcedefinitions/releases.jenkins.io
uid: e77f4e08-1972-11e8-988e-42010a8401df
spec:
group: jenkins.io
names:
kind: Release
listKind: ReleaseList
plural: releases
shortNames:
- rel
singular: release
scope: Namespaced
version: v1`
)
var (
GitAccessDescription = `
By default jx commands look for a file '~/.jx/gitAuth.yaml' to find the API tokens for git servers. You can use 'jx create git token' to create a git token.
Alternatively if you are running this command inside a CI server you can use environment variables to specify the username and API token.
e.g. define environment variables GIT_USERNAME and GIT_API_TOKEN
`
StepChangelogLong = templates.LongDesc(`
Generates a Changelog for the latest tag
This command will generate a Changelog as markdown for the git commit range given.
If you are using GitHub it will also update the GitHub Release with the changelog. You can disable that by passing'--update-release=false'
If you have just created a git tag this command will try default to the changes between the last tag and the previous one. You can always specify the exact git references (tag/sha) directly via '--previous-rev' and '--rev'
The changelog is generated by parsing the git commits. It will also detect any text like 'fixes #123' to link to issue fixes. You can also use Conventional Commits notation: https://conventionalcommits.org/ to get a nicer formatted changelog. e.g. using commits like 'fix:(my feature) this my fix' or 'feat:(cheese) something'
This command also generates a Release Custom Resource Definition you can include in your helm chart to give metadata about the changelog of the application along with metadata about the release (git tag, url, commits, issues fixed etc). Including this metadata in a helm charts means we can do things like automatically comment on issues when they hit Staging or Production; or give detailed descriptions of what things have changed when using GitOps to update versions in an environment by referencing the fixed issues in the Pull Request.
You can opt out of the release YAML generation via the '--generate-yaml=false' option
To update the release notes on GitHub / Gitea this command needs a git API token.
`) + GitAccessDescription
StepChangelogExample = templates.Examples(`
# generate a changelog on the current source
jx step changelog
# specify the version to use
jx step changelog --version 1.2.3
# specify the version and a header template
jx step changelog --header-file docs/dev/changelog-header.md --version 1.2.3
`)
GitHubIssueRegex = regexp.MustCompile(`(\#\d+)`)
JIRAIssueRegex = regexp.MustCompile(`[A-Z][A-Z]+-(\d+)`)
)
func NewCmdStepChangelog(f cmdutil.Factory, out io.Writer, errOut io.Writer) *cobra.Command {
options := StepChangelogOptions{
StepOptions: StepOptions{
CommonOptions: CommonOptions{
Factory: f,
Out: out,
Err: errOut,
},
},
}
cmd := &cobra.Command{
Use: "changelog",
Short: "Creates a changelog for a git tag",
Aliases: []string{"changes"},
Long: StepChangelogLong,
Example: StepChangelogExample,
Run: func(cmd *cobra.Command, args []string) {
options.Cmd = cmd
options.Args = args
err := options.Run()
cmdutil.CheckErr(err)
},
}
options.addCommonFlags(cmd)
cmd.Flags().StringVarP(&options.PreviousRevision, "previous-rev", "p", "", "the previous tag revision")
cmd.Flags().StringVarP(&options.PreviousDate, "previous-date", "", "", "the previous date to find a revision in format 'MonthName dayNumber year'")
cmd.Flags().StringVarP(&options.CurrentRevision, "rev", "r", "", "the current tag revision")
cmd.Flags().StringVarP(&options.TemplatesDir, "templates-dir", "t", "", "the directory containing the helm chart templates to generate the resources")
cmd.Flags().StringVarP(&options.ReleaseYamlFile, "release-yaml-file", "", "release.yaml", "the name of the file to generate the Release YAML")
cmd.Flags().StringVarP(&options.CrdYamlFile, "crd-yaml-file", "", "release-crd.yaml", "the name of the file to generate the Release CustomResourceDefinition YAML")
cmd.Flags().StringVarP(&options.Version, "version", "v", "", "The version to release")
cmd.Flags().StringVarP(&options.Dir, "dir", "", "", "The directory of the git repository. Defaults to the current working directory")
cmd.Flags().StringVarP(&options.OutputMarkdownFile, "output-markdown", "", "", "The file to generate for the changelog output if not updating a git provider release")
cmd.Flags().BoolVarP(&options.OverwriteCRD, "overwrite", "o", false, "overwrites the Release CRD YAML file if it exists")
cmd.Flags().BoolVarP(&options.GenerateCRD, "crd", "c", false, "Generate the CRD in the chart")
cmd.Flags().BoolVarP(&options.GenerateReleaseYaml, "generate-yaml", "y", true, "Generate the Release YAML in the local helm chart")
cmd.Flags().BoolVarP(&options.UpdateRelease, "update-release", "", true, "Should we update the release on the git repository with the changelog")
cmd.Flags().StringVarP(&options.Header, "header", "", "", "The changelog header in markdown for the changelog. Can use go template expressions on the ReleaseSpec object: https://golang.org/pkg/text/template/")
cmd.Flags().StringVarP(&options.HeaderFile, "header-file", "", "", "The file name of the changelog header in markdown for the changelog. Can use go template expressions on the ReleaseSpec object: https://golang.org/pkg/text/template/")
cmd.Flags().StringVarP(&options.Footer, "footer", "", "", "The changelog footer in markdown for the changelog. Can use go template expressions on the ReleaseSpec object: https://golang.org/pkg/text/template/")
cmd.Flags().StringVarP(&options.FooterFile, "footer-file", "", "", "The file name of the changelog footer in markdown for the changelog. Can use go template expressions on the ReleaseSpec object: https://golang.org/pkg/text/template/")
return cmd
}
func (o *StepChangelogOptions) Run() error {
// lets enable batch mode if we detect we are inside a pipeline
if !o.BatchMode && os.Getenv("BUILD_NUMBER") != "" {
o.Printf("Using batch mode as inside a pipeline\n")
o.BatchMode = true
}
apisClient, err := o.Factory.CreateApiExtensionsClient()
if err != nil {
return err
}
err = kube.RegisterPipelineActivityCRD(apisClient)
if err != nil {
return err
}
err = kube.RegisterGitServiceCRD(apisClient)
if err != nil {
return err
}
err = kube.RegisterReleaseCRD(apisClient)
if err != nil {
return err
}
err = kube.RegisterUserCRD(apisClient)
if err != nil {
return err
}
dir := o.Dir
if dir == "" {
dir, err = os.Getwd()
if err != nil {
return err
}
}
previousRev := o.PreviousRevision
if previousRev == "" {
previousDate := o.PreviousDate
if previousDate != "" {
previousRev, err = gits.GetRevisionBeforeDateText(dir, previousDate)
if err != nil {
return fmt.Errorf("Failed to find commits before date %s: %s", previousDate, err)
}
}
}
if previousRev == "" {
previousRev, err = gits.GetPreviousGitTagSHA(dir)
if err != nil {
return err
}
}
currentRev := o.CurrentRevision
if currentRev == "" {
currentRev, err = gits.GetCurrentGitTagSHA(dir)
if err != nil {
return err
}
}
templatesDir := o.TemplatesDir
if templatesDir == "" {
chartFile, err := o.FindHelmChart()
if err != nil {
return fmt.Errorf("Could not find helm chart %s", err)
}
path, _ := filepath.Split(chartFile)
templatesDir = filepath.Join(path, "templates")
}
err = os.MkdirAll(templatesDir, DefaultWritePermissions)
if err != nil {
return fmt.Errorf("Failed to create the templates directory %s due to %s", templatesDir, err)
}
o.Printf("Generating change log from git ref %s => %s\n", util.ColorInfo(previousRev), util.ColorInfo(currentRev))
gitDir, gitConfDir, err := gits.FindGitConfigDir(dir)
if err != nil {
return err
}
if gitDir == "" || gitConfDir == "" {
o.warnf("No git directory could be found from dir %s\n", dir)
return nil
}
gitUrl, err := gits.DiscoverUpstreamGitURL(gitConfDir)
if err != nil {
return err
}
gitInfo, err := gits.ParseGitURL(gitUrl, false)
if err != nil {
return err
}
o.State.GitInfo = gitInfo
tracker, err := o.createIssueProvider(dir)
if err != nil {
return err
}
o.State.Tracker = tracker
authConfigSvc, err := o.Factory.CreateGitAuthConfigService()
if err != nil {
return err
}
jxClient, devNs, err := o.JXClientAndDevNamespace()
if err != nil {
return err
}
gitKind, err := o.GitServerKind(gitInfo)
foundGitProvider := true
gitProvider, err := o.State.GitInfo.CreateProvider(authConfigSvc, gitKind)
if err != nil {
foundGitProvider = false
o.warnf("Could not create GitProvide so cannot update the release notes: %s\n", err)
}
o.State.GitProvider = gitProvider
o.State.FoundIssueNames = map[string]bool{}
commits, err := chgit.FetchCommits(gitDir, previousRev, currentRev)
if err != nil {
return err
}
version := o.Version
if version == "" {
version = SpecVersion
}
release := &v1.Release{
TypeMeta: metav1.TypeMeta{
Kind: "Release",
APIVersion: jenkinsio.GroupAndVersion,
},
ObjectMeta: metav1.ObjectMeta{
Name: ReleaseName,
CreationTimestamp: metav1.Time{
Time: time.Now(),
},
ResourceVersion: "1",
DeletionTimestamp: &metav1.Time{},
},
Spec: v1.ReleaseSpec{
Name: SpecName,
Version: version,
GitHTTPURL: gitInfo.HttpsURL(),
GitCloneURL: gitInfo.HttpCloneURL(),
Commits: []v1.CommitSummary{},
Issues: []v1.IssueSummary{},
PullRequests: []v1.IssueSummary{},
},
}
if commits != nil {
for _, commit := range *commits {
o.addCommit(&release.Spec, &commit)
}
}
// lets try to update the release
markdown, err := gits.GenerateMarkdown(&release.Spec, gitInfo)
if err != nil {
return err
}
header, err := o.getTemplateResult(&release.Spec, "header", o.Header, o.HeaderFile)
if err != nil {
return err
}
footer, err := o.getTemplateResult(&release.Spec, "footer", o.Footer, o.FooterFile)
if err != nil {
return err
}
markdown = header + markdown + footer
if version != "" && o.UpdateRelease && foundGitProvider {
releaseInfo := &gits.GitRelease{
Name: version,
TagName: version,
Body: markdown,
}
err = gitProvider.UpdateRelease(gitInfo.Organisation, gitInfo.Name, version, releaseInfo)
url := releaseInfo.HTMLURL
if url == "" {
url = releaseInfo.URL
}
if url == "" {
url = util.UrlJoin(gitInfo.HttpsURL(), "releases/tag", version)
}
release.Spec.ReleaseNotesURL = url
if err != nil {
o.warnf("Failed to update the release at %s: %s\n", url, err)
return nil
}
o.Printf("Updated the release information at %s\n", util.ColorInfo(url))
} else if o.OutputMarkdownFile != "" {
err := ioutil.WriteFile(o.OutputMarkdownFile, []byte(markdown), DefaultWritePermissions)
if err != nil {
return err
}
o.Printf("\nGenerated Changelog: %s\n", util.ColorInfo(o.OutputMarkdownFile))
} else {
o.Printf("\nGenerated Changelog:\n")
o.Printf("%s\n\n", markdown)
}
o.State.Release = release
// now lets marshal the release YAML
data, err := yaml.Marshal(release)
if err != nil {
return err
}
if data == nil {
return fmt.Errorf("Could not marshal release to yaml")
}
releaseFile := filepath.Join(templatesDir, o.ReleaseYamlFile)
crdFile := filepath.Join(templatesDir, o.CrdYamlFile)
if o.GenerateReleaseYaml {
err = ioutil.WriteFile(releaseFile, data, DefaultWritePermissions)
if err != nil {
return fmt.Errorf("Failed to save Release YAML file %s: %s", releaseFile, err)
}
o.Printf("generated: %s\n", util.ColorInfo(releaseFile))
}
if o.GenerateCRD {
exists, err := util.FileExists(crdFile)
if err != nil {
return fmt.Errorf("Failed to check for CRD YAML file %s: %s", crdFile, err)
}
if o.OverwriteCRD || !exists {
err = ioutil.WriteFile(crdFile, []byte(ReleaseCrdYaml), DefaultWritePermissions)
if err != nil {
return fmt.Errorf("Failed to save Release CRD YAML file %s: %s", crdFile, err)
}
o.Printf("generated: %s\n", util.ColorInfo(crdFile))
}
}
releaseNotesURL := release.Spec.ReleaseNotesURL
if releaseNotesURL != "" {
pipeline := os.Getenv("JOB_NAME")
build := os.Getenv("BUILD_NUMBER")
if pipeline != "" && build != "" {
name := kube.ToValidName(pipeline + "-" + build)
// lets see if we can update the pipeline
activities := jxClient.JenkinsV1().PipelineActivities(devNs)
key := &kube.PromoteStepActivityKey{
PipelineActivityKey: kube.PipelineActivityKey{
Name: name,
Pipeline: pipeline,
Build: build,
ReleaseNotesURL: releaseNotesURL,
},
}
a, err := key.GetOrCreate(activities)
if err == nil && a != nil && a.Spec.ReleaseNotesURL == "" {
_, err = activities.Update(a)
if err != nil {
o.warnf("Failed to update PipelineActivities %s: %s\n", name, err)
} else {
o.Printf("Updated PipelineActivities %s with release notes URL: %s\n", util.ColorInfo(name), util.ColorInfo(releaseNotesURL))
}
}
} else {
o.warnf("No pipeline and build number available on $JOB_NAME and $BUILD_NUMBER so cannot update PipelineActivities with the ReleaseNotesURL\n")
}
}
return nil
}
func (o *StepChangelogOptions) addCommit(spec *v1.ReleaseSpec, commit *object.Commit) {
// TODO
url := ""
branch := "master"
sha := commit.Hash.String()
commitSummary := v1.CommitSummary{
Message: commit.Message,
URL: url,
SHA: sha,
Author: o.toUserDetails(commit.Author),
Branch: branch,
Committer: o.toUserDetails(commit.Committer),
}
err := o.addIssuesAndPullRequests(spec, &commitSummary, commit)
spec.Commits = append(spec.Commits, commitSummary)
if err != nil {
o.warnf("Failed to enrich commits with issues: %s\n", err)
}
}
func (o *StepChangelogOptions) addIssuesAndPullRequests(spec *v1.ReleaseSpec, commit *v1.CommitSummary, rawCommit *object.Commit) error {
tracker := o.State.Tracker
gitProvider := o.State.GitProvider
if gitProvider == nil || !gitProvider.HasIssues() {
return nil
}
regex := GitHubIssueRegex
issueKind := issues.GetIssueProvider(tracker)
if !o.State.LoggedIssueKind {
o.State.LoggedIssueKind = true
o.Printf("Finding issues in commit messages using %s format\n", issueKind)
}
if issueKind == issues.Jira {
regex = JIRAIssueRegex
}
message := fullCommitMessageText(rawCommit)
matches := regex.FindAllStringSubmatch(message, -1)
for _, match := range matches {
for _, result := range match {
result = strings.TrimPrefix(result, "#")
if _, ok := o.State.FoundIssueNames[result]; !ok {
o.State.FoundIssueNames[result] = true
issue, err := tracker.GetIssue(result)
if err != nil {
o.warnf("Failed to lookup issue %s in issue tracker %s due to %s\n", result, tracker.HomeURL(), err)
continue
}
if issue == nil {
o.warnf("Failed to find issue %s for repository %s\n", result, tracker.HomeURL())
}
var user v1.UserDetails
if issue.User == nil {
o.warnf("Failed to find user for issue %s repository %s\n", result, tracker.HomeURL())
} else {
user = *o.gitUserToUserDetails(issue.User)
}
var closedBy v1.UserDetails
if issue.ClosedBy == nil {
o.warnf("Failed to find closedBy user for issue %s repository %s\n", result, tracker.HomeURL())
} else {
closedBy = *o.gitUserToUserDetails(issue.User)
}
var assignees []v1.UserDetails
if issue.Assignees == nil {
o.warnf("Failed to find assignees for issue %s repository %s\n", result, tracker.HomeURL())
} else {
assignees = o.gitUserToUserDetailSlice(issue.Assignees)
}
labels := toV1Labels(issue.Labels)
commit.IssueIDs = append(commit.IssueIDs, result)
issueSummary := v1.IssueSummary{
ID: result,
URL: issue.URL,
Title: issue.Title,
Body: issue.Body,
User: &user,
CreationTimestamp: kube.ToMetaTime(issue.CreatedAt),
ClosedBy: &closedBy,
Assignees: assignees,
Labels: labels,
}
state := issue.State
if state != nil {
issueSummary.State = *state
}
if issue.IsPullRequest {
spec.PullRequests = append(spec.PullRequests, issueSummary)
} else {
spec.Issues = append(spec.Issues, issueSummary)
}
}
}
}
return nil
}
// toV1Labels converts git labels to IssueLabel
func toV1Labels(labels []gits.GitLabel) []v1.IssueLabel {
answer := []v1.IssueLabel{}
for _, label := range labels {
answer = append(answer, v1.IssueLabel{
URL: label.URL,
Name: label.Name,
Color: label.Color,
})
}
return answer
}
// fullCommitMessageText returns the commit message plus any extra omitted commit message
// lines from parent commits as a result of a PR
func fullCommitMessageText(commit *object.Commit) string {
answer := commit.Message
fn := func(parent *object.Commit) error {
text := parent.Message
if text != "" {
sep := "\n"
if strings.HasSuffix(answer, "\n") {
sep = ""
}
answer += sep + text
}
return nil
}
commit.Parents().ForEach(fn)
return answer
}
func (o *StepChangelogOptions) gitUserToUserDetailSlice(users []gits.GitUser) []v1.UserDetails {
answer := []v1.UserDetails{}
for _, user := range users {
answer = append(answer, *o.gitUserToUserDetails(&user))
}
return answer
}
func (o *StepChangelogOptions) gitUserToUserDetails(user *gits.GitUser) *v1.UserDetails {
return &v1.UserDetails{
Login: user.Login,
Name: user.Name,
Email: user.Email,
URL: user.URL,
AvatarURL: user.AvatarURL,
/*
CreationTimestamp: &metav1.Time{
Time: user.When,
},
*/
}
}
func (o *StepChangelogOptions) toUserDetails(signature object.Signature) *v1.UserDetails {
userDetailService := cmdutil.NewUserDetailService(o.jxClient, o.devNamespace)
user := userDetailService.FindByEmail(signature.Email)
if user != nil && user.Login != "" {
return user
}
login := ""
return &v1.UserDetails{
Login: login,
Name: signature.Name,
Email: signature.Email,
CreationTimestamp: &metav1.Time{
Time: signature.When,
},
}
}
func (o *StepChangelogOptions) getTemplateResult(releaseSpec *v1.ReleaseSpec, templateName string, templateText string, templateFile string) (string, error) {
if templateText == "" {
if templateFile == "" {
return "", nil
}
data, err := ioutil.ReadFile(templateFile)
if err != nil {
return "", err
}
templateText = string(data)
}
if templateText == "" {
return "", nil
}
tmpl, err := template.New(templateName).Parse(templateText)
if err != nil {
return "", err
}
var buffer bytes.Buffer
writer := bufio.NewWriter(&buffer)
err = tmpl.Execute(writer, releaseSpec)
writer.Flush()
return buffer.String(), err
}