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github.go
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github.go
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package gordon
import (
"encoding/json"
"fmt"
"os"
"path"
"regexp"
"strconv"
"strings"
"sync"
gh "github.com/crosbymichael/octokat"
)
// Top level type that manages a repository
type MaintainerManager struct {
repo gh.Repo
client *gh.Client
email string
username string
originPath string
}
type Config struct {
Token string
UserName string
}
var (
belongsToOthers = false
configPath = path.Join(os.Getenv("HOME"), ".maintainercfg")
)
func LoadConfig() (*Config, error) {
var config Config
f, err := os.Open(configPath)
if err != nil {
if !os.IsNotExist(err) {
return &config, err
}
} else {
defer f.Close()
dec := json.NewDecoder(f)
if err := dec.Decode(&config); err != nil {
return &config, err
}
}
return &config, err
}
func SaveConfig(config Config) error {
f, err := os.OpenFile(configPath, os.O_CREATE|os.O_RDWR, 0600)
if err != nil {
return err
}
defer f.Close()
enc := json.NewEncoder(f)
if err := enc.Encode(config); err != nil {
return err
}
return nil
}
func getRepoPath(pth, org string) string {
flag := false
i := 0
repoPath := path.Dir("/")
for _, dir := range strings.Split(pth, "/") {
if strings.EqualFold(dir, org) {
flag = true
}
if flag {
if i >= 2 {
repoPath = path.Join(repoPath, dir)
}
i++
}
}
return repoPath
}
func getOriginPath(repo string) (string, error) {
currentPath, err := os.Getwd()
if err != nil {
return "", err
}
originPath := path.Dir("/")
for _, dir := range strings.Split(currentPath, "/") {
originPath = path.Join(originPath, dir)
if strings.EqualFold(dir, repo) {
break
}
}
return originPath, err
}
func NewMaintainerManager(client *gh.Client, org, repo string) (*MaintainerManager, error) {
config, err := LoadConfig()
if err == nil {
client.WithToken(config.Token)
}
originPath, err := getOriginPath(repo)
if err != nil {
return nil, fmt.Errorf("getoriginpath: %v", err)
}
email, err := GetMaintainerManagerEmail()
if err != nil {
return nil, fmt.Errorf("getemail: %v", err)
}
return &MaintainerManager{
repo: gh.Repo{Name: repo, UserName: org},
client: client,
email: email,
originPath: originPath,
username: config.UserName,
}, nil
}
func (m *MaintainerManager) Repository() (*gh.Repository, error) {
return m.client.Repository(m.repo, nil)
}
func (m *MaintainerManager) worker(prepr <-chan *gh.PullRequest, pospr chan<- *gh.PullRequest, wg *sync.WaitGroup, needFullPr, needComments bool) {
var err error
defer wg.Done()
for p := range prepr {
if needFullPr {
p, err = m.GetPullRequest(strconv.Itoa(p.Number))
if err != nil {
return
}
}
if needComments {
p.CommentsBody, err = m.GetComments(strconv.Itoa(p.Number))
if err != nil {
return
}
}
pospr <- p
fmt.Printf(".")
}
}
func (m *MaintainerManager) GetFullPullRequests(prs []*gh.PullRequest, needFullPr, needComments bool) []*gh.PullRequest {
var (
producer = make(chan *gh.PullRequest, NumWorkers)
consumer = make(chan *gh.PullRequest, NumWorkers)
wg = &sync.WaitGroup{}
consumerGroup = &sync.WaitGroup{}
filteredPrs = []*gh.PullRequest{}
)
// take the finished results and put them into the list
consumerGroup.Add(1)
go func() {
defer consumerGroup.Done()
for p := range consumer {
filteredPrs = append(filteredPrs, p)
}
}()
for i := 0; i < NumWorkers; i++ {
wg.Add(1)
go m.worker(producer, consumer, wg, needFullPr, needComments)
}
// add all jobs
for _, p := range prs {
producer <- p
}
// we are done sending jobs so close the channel
close(producer)
wg.Wait()
close(consumer)
// wait for the consumer to finish adding all the results to the list
consumerGroup.Wait()
return filteredPrs
}
// Return all pull requests
func (m *MaintainerManager) GetPullRequests(state, sort string) ([]*gh.PullRequest, error) {
o := &gh.Options{}
o.QueryParams = map[string]string{
"sort": sort,
"direction": "asc",
"state": state,
"per_page": "100",
}
prevSize := -1
page := 1
allPRs := []*gh.PullRequest{}
for len(allPRs) != prevSize {
o.QueryParams["page"] = strconv.Itoa(page)
if prs, err := m.client.PullRequests(m.repo, o); err != nil {
return nil, err
} else {
prevSize = len(allPRs)
allPRs = append(allPRs, prs...)
page += 1
}
fmt.Printf(".")
}
return allPRs, nil
}
// Return all pull request Files
func (m *MaintainerManager) GetPullRequestFiles(number string) ([]*gh.PullRequestFile, error) {
o := &gh.Options{}
o.QueryParams = map[string]string{}
allPrFiles := []*gh.PullRequestFile{}
if prfs, err := m.client.PullRequestFiles(m.repo, number, o); err != nil {
return nil, err
} else {
allPrFiles = append(allPrFiles, prfs...)
}
return allPrFiles, nil
}
func (m *MaintainerManager) GetFirstPullRequest(state, sortBy string) (*gh.PullRequest, error) {
o := &gh.Options{}
o.QueryParams = map[string]string{
"state": state,
"per_page": "1",
"page": "1",
"sort": sortBy,
"direction": "asc",
}
prs, err := m.client.PullRequests(m.repo, o)
if err != nil {
return nil, err
}
if len(prs) == 0 {
return nil, fmt.Errorf("No matching pull request")
}
return prs[0], nil
}
// Return a single pull request
func (m *MaintainerManager) GetPullRequest(number string) (*gh.PullRequest, error) {
return m.client.PullRequest(m.repo, number, nil)
}
// Return a single issue
// Return issue's comments if requested
func (m *MaintainerManager) GetIssue(number string, comments bool) (*gh.Issue, []gh.Comment, error) {
var c []gh.Comment
num, err := strconv.Atoi(number)
if err != nil {
return nil, nil, err
}
issue, err := m.client.Issue(m.repo, num, nil)
if err != nil {
return nil, nil, err
}
if comments {
c, err = m.GetComments(number)
if err != nil {
return nil, nil, err
}
}
return issue, c, nil
}
// Return all issue found
func (m *MaintainerManager) GetIssuesFound(query string) ([]*gh.SearchItem, error) {
o := &gh.Options{}
o.QueryParams = map[string]string{
"sort": "updated",
"order": "asc",
"per_page": "100",
}
prevSize := -1
page := 1
issuesFound := []*gh.SearchItem{}
for len(issuesFound) != prevSize {
o.QueryParams["page"] = strconv.Itoa(page)
if issues, err := m.client.SearchIssues(query, o); err != nil {
return nil, err
} else {
prevSize = len(issuesFound)
issuesFound = append(issuesFound, issues...)
page += 1
}
fmt.Printf(".")
}
return issuesFound, nil
}
// Return contributors list
func (m *MaintainerManager) GetContributors() ([]*gh.Contributor, error) {
o := &gh.Options{}
contributors, err := m.client.Contributors(m.repo, o)
if err != nil {
return nil, err
}
return contributors, nil
}
// Return all comments for an issue or pull request
func (m *MaintainerManager) GetComments(number string) ([]gh.Comment, error) {
return m.client.Comments(m.repo, number, nil)
}
// Add a comment to an existing pull request
func (m *MaintainerManager) AddComment(number, comment string) (gh.Comment, error) {
return m.client.AddComment(m.repo, number, comment)
}
// Merge a pull request
// If no LGTMs are in the comments require force to be true
func (m *MaintainerManager) MergePullRequest(number, comment string, force bool) (gh.Merge, error) {
comments, err := m.GetComments(number)
if err != nil {
return gh.Merge{}, err
}
isApproved := false
for _, c := range comments {
// FIXME: Again should check for LGTM from a maintainer
if strings.Contains(c.Body, "LGTM") {
isApproved = true
break
}
}
if !isApproved && !force {
return gh.Merge{}, fmt.Errorf("Pull request %s has not been approved", number)
}
o := &gh.Options{}
o.Params = map[string]string{
"commit_message": comment,
}
return m.client.MergePullRequest(m.repo, number, o)
}
// Checkout the pull request into the working tree of
// the users repository.
//
// It's up to the caller to decide what to do with the checked out
// branch - typically created a named branch with 'checkout -b'.
func (m *MaintainerManager) Checkout(pr *gh.PullRequest) error {
if err := Git("fetch", pr.Head.Repo.CloneURL, pr.Head.Ref); err != nil {
return fmt.Errorf("git fetch: %v", err)
}
if err := Git("checkout", "FETCH_HEAD"); err != nil {
return fmt.Errorf("git checkout: %v", err)
}
return nil
}
// Get the user information from the authenticated user
func (m *MaintainerManager) GetGithubUser() (*gh.User, error) {
user, err := m.client.User("", nil)
if err != nil {
return nil, err
}
return user, err
}
// Patch an issue
func (m *MaintainerManager) PatchIssue(number string, issue *gh.Issue) (*gh.Issue, error) {
o := &gh.Options{}
o.Params = map[string]string{
"title": issue.Title,
"body": issue.Body,
"assignee": issue.Assignee.Login,
}
patchedIssue, err := m.client.PatchIssue(m.repo, number, o)
if err != nil {
return nil, err
}
return patchedIssue, err
}
func (m *MaintainerManager) CreatePullRequest(base, head, title, body string) (*gh.PullRequest, error) {
return m.client.CreatePullRequest(
m.repo,
&gh.Options{
Params: map[string]string{
"title": title,
"head": head,
"base": base,
"body": body,
},
},
)
}
// Patch a pull request
func (m *MaintainerManager) PatchPullRequest(number string, pr *gh.PullRequest) (*gh.PullRequest, error) {
o := &gh.Options{}
params := map[string]string{
"title": pr.Title,
"body": pr.Body,
}
if pr.Assignee == nil {
params["assignee"] = ""
} else {
params["assignee"] = pr.Assignee.Login
}
o.Params = params
// octokat doesn't expose PatchPullRequest. Use PatchIssue instead.
_, err := m.client.PatchIssue(m.repo, number, o)
if err != nil {
return nil, err
}
// Simulate the result of the patching
patchedPR := *pr
return &patchedPR, nil
}
func (m *MaintainerManager) Close(number string) error {
_, err := m.client.PatchIssue(
m.repo,
number,
&gh.Options{Params: map[string]string{"state": "closed"}},
)
return err
}
func (m *MaintainerManager) GetFirstIssue(state, sortBy string) (*gh.Issue, error) {
o := &gh.Options{}
o.QueryParams = map[string]string{
"state": state,
"per_page": "1",
"page": "1",
"sort": sortBy,
"direction": "asc",
}
issues, err := m.client.Issues(m.repo, o)
if err != nil {
return &gh.Issue{}, err
}
if len(issues) == 0 {
return &gh.Issue{}, fmt.Errorf("No matching issues")
}
return issues[0], nil
}
// GetIssues queries the GithubAPI for all issues matching the state `state` and the
// assignee `assignee`.
// See http://developer.github.com/v3/issues/#list-issues-for-a-repository
func (m *MaintainerManager) GetIssues(state, assignee string) ([]*gh.Issue, error) {
o := &gh.Options{}
o.QueryParams = map[string]string{
"sort": "updated",
"direction": "asc",
"state": state,
"per_page": "100",
}
// If assignee == "", don't add it to the params.
// This will show all issues, assigned or not.
if assignee != "" {
o.QueryParams["assignee"] = assignee
}
prevSize := -1
page := 1
all := []*gh.Issue{}
for len(all) != prevSize {
o.QueryParams["page"] = strconv.Itoa(page)
if issues, err := m.client.Issues(m.repo, o); err != nil {
return nil, err
} else {
prevSize = len(all)
all = append(all, issues...)
page += 1
}
fmt.Printf(".")
}
return all, nil
}
// GenBranchName returns a generated branch name from a human-readable description.
//
// For example this:
// `GenBranchName(" Hey! let's do awesome stuff...")`
// Will return this:
// `"hey_let_s_do_awesome_stuff"`
func GenBranchName(text string) string {
toRemove := regexp.MustCompile("(^[[:^alnum:]]+|[[:^alnum:]]$)")
toUnderscore := regexp.MustCompile("[[:^alnum:]]+")
branchName := strings.ToLower(text)
branchName = toRemove.ReplaceAllString(branchName, "")
branchName = toUnderscore.ReplaceAllString(branchName, "_")
return branchName
}
// GetStatus queries the GithubAPI for the current build status of a pull request
// See http://developer.github.com/v3/issues/#list-issues-for-a-repository
func (m *MaintainerManager) GetStatus(pr *gh.PullRequest) (gh.CombinedStatus, error) {
o := &gh.Options{}
o.QueryParams = map[string]string{}
return m.client.CombinedStatus(m.repo, pr.Head.Sha, o)
}