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update.go
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update.go
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// Copyright (c) 2020 The Decred developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package github
import (
"strings"
"time"
"github.com/decred/politeia/politeiawww/legacy/codetracker"
"github.com/decred/politeia/politeiawww/legacy/codetracker/github/api"
"github.com/decred/politeia/politeiawww/legacy/codetracker/github/database"
"github.com/decred/politeia/politeiawww/legacy/codetracker/github/database/cockroachdb"
)
// github contains the client that communicates with the github api and an
// instance of the codedb that contains all of the pull request/review
// information that is fetched.
type github struct {
tc *api.Client
codedb database.Database
}
// New creates a new github tracker that saves is able to communicate with
// the Github user/PR/issue API.
func New(apiToken, host, rootCert, cert, key string) (*github, error) {
var err error
g := &github{}
g.tc = api.NewClient(apiToken)
g.codedb, err = cockroachdb.New(host, rootCert, cert, key)
if err == database.ErrNoVersionRecord || err == database.ErrWrongVersion {
log.Errorf("New DB failed no version, wrong version: %v", err)
return nil, err
} else if err != nil {
log.Errorf("New DB failed: %v", err)
return nil, err
}
err = g.codedb.Setup()
if err != nil {
log.Errorf("codeDB setup failed: %v", err)
return nil, err
}
return g, nil
}
// Update fetches all repos from the given organization and updates all
// users' information once the info is fully received. If repoRequest is
// included then only that repo will be fetched and updated, typically
// used for speeding up testing.
func (g *github) Update(repos []string, start, end int64) {
for _, repo := range repos {
log.Infof("%s", repo)
orgRepo := strings.Split(repo, "-")
org := orgRepo[0]
repo = orgRepo[1]
log.Infof("Syncing %s/%s", org, repo)
// Grab latest sync time
prs, err := g.tc.FetchPullsRequest(org, repo)
if err != nil {
log.Errorf("error fetching repo pullrequest %s/%s %v", org, repo,
err)
continue
}
for _, pr := range prs {
// check to see if last updated time was before the given start date
if parseTime(pr.UpdatedAt).Before(time.Unix(start, 0)) {
continue
}
if parseTime(pr.UpdatedAt).After(time.Unix(end, 0)) {
continue
}
err := g.updatePullRequest(org, repo, pr, start)
if err != nil {
log.Errorf("updatePullRequest for %s/%s %v %v", org, repo,
pr.Number, err)
}
}
}
}
func (g *github) updatePullRequest(org, repoName string, pr api.PullsRequest, start int64) error {
log.Infof("Updating %v/%v/%v ", org, repoName, pr.Number)
apiPullRequest, err := g.fetchPullRequest(org, repoName, pr.Number)
if err != nil {
return err
}
_, err = g.codedb.PullRequestByID(apiPullRequest.ID)
if err == database.ErrNoPullRequestFound {
// Add a new entry since there is nothing there now.
err = g.codedb.NewPullRequest(apiPullRequest)
if err != nil {
log.Errorf("error adding new pull request: %v", err)
return err
}
} else if err != nil {
log.Errorf("error finding PR in db", err)
return err
}
reviews, err := g.fetchPullRequestReviews(org, repoName, pr.Number,
apiPullRequest.URL)
if err != nil {
return err
}
for _, review := range reviews {
_, err := g.codedb.ReviewByID(review.ID)
if err == database.ErrNoPullRequestReviewFound {
// Add a new entry since there is nothing there now.
err = g.codedb.NewPullRequestReview(&review)
if err != nil {
log.Errorf("error adding new pull request review: %v", err)
continue
}
} else if err != nil {
log.Errorf("error finding Pull Request Review in db", err)
return err
}
}
// This will fetch all commits not already in the DB.
commits, err := g.fetchPullRequestCommits(org, repoName, pr.Number)
if err != nil {
return err
}
for _, commit := range commits {
commit.Repo = repoName
commit.Organization = org
// Add a new entry since there is nothing there now.
err = g.codedb.NewCommit(commit)
if err != nil {
log.Errorf("error adding new commit: %v %v", commit.SHA, err)
}
}
return nil
}
func (g *github) fetchPullRequest(org, repoName string, prNum int) (*database.PullRequest, error) {
apiPR, err := g.tc.FetchPullRequest(org, repoName, prNum)
if err != nil {
return nil, err
}
dbPullRequest, err := convertAPIPullRequestToDbPullRequest(apiPR, repoName,
org)
if err != nil {
log.Errorf("error converting api PR to database: %v", err)
return nil, err
}
return dbPullRequest, nil
}
func (g *github) fetchPullRequestReviews(org, repoName string, prNum int, url string) ([]database.PullRequestReview, error) {
prReviews, err := g.tc.FetchPullRequestReviews(org, repoName, prNum)
if err != nil {
return nil, err
}
reviews := convertAPIReviewsToDbReviews(prReviews, repoName, prNum, url)
return reviews, nil
}
func (g *github) fetchPullRequestCommits(org, repoName string, prNum int) ([]*database.Commit, error) {
hashes, err := g.tc.FetchPullRequestCommitSHAs(org, repoName, prNum)
if err != nil {
return nil, err
}
neededHashes := make([]string, 0, 1048) // PNOOMA
for _, sha := range hashes {
_, err := g.codedb.CommitBySHA(sha)
if err == database.ErrNoCommitFound {
neededHashes = append(neededHashes, sha)
} else if err != nil {
log.Errorf("error finding commit in db %v %v", sha, err)
continue
}
}
prCommits, err := g.tc.FetchPullRequestCommits(org, repoName, neededHashes)
if err != nil {
return nil, err
}
commits := convertAPICommitsToDbComits(prCommits, org, repoName)
return commits, nil
}
// UserInfo provides the converted information from pull requests and
// reviews for a given user of a given period of time.
func (g *github) UserInfo(user string, year, month int) (*codetracker.UserInformationResult, error) {
startDate := time.Date(year, time.Month(month), 0, 0, 0, 0, 0,
time.UTC).Unix()
endDate := time.Date(year, time.Month(month+1), 0, 0, 0, 0, 0,
time.UTC).Unix()
dbMergedPRs, err := g.codedb.MergedPullRequestsByUserDates(user, startDate,
endDate)
if err != nil {
return nil, err
}
dbUpdatedPRs, err := g.codedb.UpdatedPullRequestsByUserDates(user,
startDate, endDate)
if err != nil {
return nil, err
}
dbCommits, err := g.codedb.CommitsByUserDates(user, startDate, endDate)
if err != nil {
return nil, err
}
// Now we need to see if there are any other hits in the DB so we can
// see if it was an update to an existing PR or if it is new. If it is
// new then we just keep the current Additions/Deletions, If it is existing
// and no other updates from before start date then we just keep the
// Additions/Deletions. If if is existing and the it was before start, then
// take the difference between that last update before start and this most
// recent update in the current month. The idea here is we want to capture
// the work completed in a given month.
for i, updatedPR := range dbUpdatedPRs {
urlPRs, err := g.codedb.PullRequestsByURL(updatedPR.URL)
if err != nil {
return nil, err
}
// There are existing PRs
if len(urlPRs) > 1 {
var lastUpdated *database.PullRequest
for _, urlPR := range urlPRs {
// Find the most recent PR returned that is before start
if urlPR.UpdatedAt < startDate &&
(lastUpdated == nil ||
urlPR.UpdatedAt > lastUpdated.UpdatedAt) {
lastUpdated = urlPR
}
}
// lastUpdated was found to be before start and was the last updated
// so change the pr additions/deletions to the diff so they
// can be tabulated accurately.
if lastUpdated != nil {
updatedPR.Additions = updatedPR.Additions -
lastUpdated.Additions
updatedPR.Deletions = updatedPR.Deletions -
lastUpdated.Deletions
dbUpdatedPRs[i] = updatedPR
}
}
}
dbReviews, err := g.codedb.ReviewsByUserDates(user, startDate, endDate)
if err != nil {
return nil, err
}
userInfo := &codetracker.UserInformationResult{}
userInfo.MergedPRs = convertDBPullRequestsToPullRequests(dbMergedPRs)
userInfo.UpdatedPRs = convertDBPullRequestsToPullRequests(dbUpdatedPRs)
userInfo.Reviews = convertDBPullRequestReviewsToReviews(dbReviews)
userInfo.Commits = convertDBCommitsToCommits(dbCommits)
userInfo.User = user
return userInfo, nil
}
func parseTime(tstamp string) time.Time {
t, err := time.Parse(time.RFC3339, tstamp)
if err != nil {
return time.Time{}
}
return t
}