Add push commits history comment on PR time-line

models/issue_comment.go

@@ -7,6 +7,7 @@
 package models
 
 import (
+	"container/list"
 	"fmt"
 	"strings"
 
@@ -90,6 +91,8 @@ const (
 	CommentTypeReviewRequest
 	// merge pull request
 	CommentTypeMergePull
+	// push to PR head branch
+	CommentTypePullPush
 )
 
 // CommentTag defines comment tag type
@@ -167,6 +170,12 @@ type Comment struct {
 	RefRepo    *Repository `xorm:"-"`
 	RefIssue   *Issue      `xorm:"-"`
 	RefComment *Comment    `xorm:"-"`
+
+	Commits     *list.List `xorm:"-"`
+	OldCommit   string     `xorm:"-"`
+	NewCommit   string     `xorm:"-"`
+	CommitsNum  int64      `xorm:"-"`
+	IsForcePush bool
 }
 
 // LoadIssue loads issue from database
@@ -543,6 +552,40 @@ func (c *Comment) CodeCommentURL() string {
 	return fmt.Sprintf("%s/files#%s", c.Issue.HTMLURL(), c.HashTag())
 }
 
+// LoadPushCommits Load push commits
+func (c *Comment) LoadPushCommits() (err error) {
+	if c.Content == "" || c.Commits != nil || c.Type != CommentTypePullPush {
+		return nil
+	}
+
+	commitIDs := strings.Split(c.Content, ":")
+
+	if c.IsForcePush {
+		if len(commitIDs) != 2 {
+			return nil
+		}
+		c.OldCommit = commitIDs[0]
+		c.NewCommit = commitIDs[1]
+	} else {
+		repoPath := c.Issue.Repo.RepoPath()
+		gitRepo, err := git.OpenRepository(repoPath)
+		if err != nil {
+			return err
+		}
+		defer gitRepo.Close()
+
+		c.Commits = gitRepo.GetCommitsFromIDs(commitIDs)
+		c.CommitsNum = int64(c.Commits.Len())
+		if c.CommitsNum > 0 {
+			c.Commits = ValidateCommitsWithEmails(c.Commits)
+			c.Commits = ParseCommitsWithSignature(c.Commits, c.Issue.Repo)
+			c.Commits = ParseCommitsWithStatus(c.Commits, c.Issue.Repo)
+		}
+	}
+
+	return err
+}
+
 func createComment(e *xorm.Session, opts *CreateCommentOptions) (_ *Comment, err error) {
 	var LabelID int64
 	if opts.Label != nil {
@@ -576,6 +619,7 @@ func createComment(e *xorm.Session, opts *CreateCommentOptions) (_ *Comment, err
 		RefCommentID:     opts.RefCommentID,
 		RefAction:        opts.RefAction,
 		RefIsPull:        opts.RefIsPull,
+		IsForcePush:      opts.IsForcePush,
 	}
 	if _, err = e.Insert(comment); err != nil {
 		return nil, err
@@ -738,6 +782,7 @@ type CreateCommentOptions struct {
 	RefCommentID     int64
 	RefAction        references.XRefAction
 	RefIsPull        bool
+	IsForcePush      bool
 }
 
 // CreateComment creates comment of issue or commit.
@@ -1016,3 +1061,96 @@ func UpdateCommentsMigrationsByType(tp structs.GitServiceType, originalAuthorID
 		})
 	return err
 }
+
+// CreatePushPullComment create push code to pull base commend
+func CreatePushPullComment(pusher *User, pr *PullRequest, oldCommitID, newCommitID string) (comment *Comment, err error) {
+	if pr.HasMerged || oldCommitID == "" || newCommitID == "" {
+		return nil, nil
+	}
+
+	ops := &CreateCommentOptions{
+		Type: CommentTypePullPush,
+		Doer: pusher,
+		Repo: pr.BaseRepo,
+	}
+
+	var commitIDs []string
+
+	var isForcePush bool
+	commitIDs, isForcePush, err = getCommitIDsFromRepo(pr.BaseRepo, oldCommitID, newCommitID, pr.BaseBranch)
+	if err != nil {
+		return nil, err
+	}
+
+	ops.Issue = pr.Issue
+	ops.IsForcePush = isForcePush
+
+	commitIDlist := ""
+
+	for _, commitID := range commitIDs {
+		commitIDlist = commitID + ":" + commitIDlist
+	}
+
+	ops.Content = commitIDlist[0 : len(commitIDlist)-1]
+
+	comment, err = CreateComment(ops)
+
+	return
+}
+
+// getCommitsFromRepo get commit IDs from repo in betwern oldCommitID and newCommitID
+// isForcePush will be true if oldCommit isn't on the branch
+// Commit on baseBranch will skip
+func getCommitIDsFromRepo(repo *Repository, oldCommitID, newCommitID, baseBranch string) (commitIDs []string, isForcePush bool, err error) {
+	repoPath := repo.RepoPath()
+	gitRepo, err := git.OpenRepository(repoPath)
+	if err != nil {
+		return nil, false, err
+	}
+	defer gitRepo.Close()
+
+	oldCommit, err := gitRepo.GetCommit(oldCommitID)
+	if err != nil {
+		return nil, false, err
+	}
+
+	oldCommitBranch, err := oldCommit.GetBranchName()
+	if err != nil {
+		return nil, false, err
+	}
+
+	if oldCommitBranch == "undefined" {
+		commitIDs = make([]string, 2)
+		commitIDs[1] = oldCommitID
+		commitIDs[0] = newCommitID
+
+		return commitIDs, true, err
+	}
+
+	newCommit, err := gitRepo.GetCommit(newCommitID)
+	if err != nil {
+		return nil, false, err
+	}
+
+	var commits *list.List
+	commits, err = newCommit.CommitsBeforeUntil(oldCommitID)
+	if err != nil {
+		return nil, false, err
+	}
+
+	commitIDs = make([]string, 0, commits.Len())
+
+	for e := commits.Front(); e != nil; e = e.Next() {
+		commit := e.Value.(*git.Commit)
+		commitBranch, err := commit.GetBranchName()
+		if err != nil {
+			return nil, false, err
+		}
+
+		if commitBranch != baseBranch {
+			commitIDs = append(commitIDs, commit.ID.String())
+		}
+	}
+
+	return
+}

models/migrations/migrations.go

@@ -210,6 +210,8 @@ var migrations = []Migration{
 	NewMigration("Add Branch Protection Block Outdated Branch", addBlockOnOutdatedBranch),
 	// v138 -> v139
 	NewMigration("Add ResolveDoerID to Comment table", addResolveDoerIDCommentColumn),
+	// v139 -> v140
+	NewMigration("Add IsForcePush to Comment table", addIsForcePushCommentColumn),
 }
 
 // GetCurrentDBVersion returns the current db version

models/migrations/v139.go

@@ -0,0 +1,22 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package migrations
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func addIsForcePushCommentColumn(x *xorm.Engine) error {
+	type Comment struct {
+		IsForcePush bool
+	}
+
+	if err := x.Sync2(new(Comment)); err != nil {
+		return fmt.Errorf("Sync2: %v", err)
+	}
+	return nil
+}

models/repo.go

@@ -264,6 +264,17 @@ func (repo *Repository) HTMLURL() string {
 	return setting.AppURL + repo.FullName()
 }
 
+// CommitLink make link to by commit full ID
+// note: won't check whether it's an right id
+func (repo *Repository) CommitLink(commitID string) (result string) {
+	if commitID == "" || commitID == "0000000000000000000000000000000000000000" {
+		result = ""
+	} else {
+		result = repo.HTMLURL() + "/commit/" + commitID
+	}
+	return
+}
+
 // APIURL returns the repository API URL
 func (repo *Repository) APIURL() string {
 	return setting.AppURL + path.Join("api/v1/repos", repo.FullName())

modules/git/commit.go

@@ -466,15 +466,15 @@ func (c *Commit) GetSubModule(entryname string) (*SubModule, error) {
 	return nil, nil
 }
 
-// GetBranchName gets the closes branch name (as returned by 'git name-rev')
+// GetBranchName gets the closes branch name (as returned by 'git name-rev --name-only')
 func (c *Commit) GetBranchName() (string, error) {
-	data, err := NewCommand("name-rev", c.ID.String()).RunInDirBytes(c.repo.Path)
+	data, err := NewCommand("name-rev", "--name-only", c.ID.String()).RunInDirBytes(c.repo.Path)
 	if err != nil {
 		return "", err
 	}
 
-	// name-rev commitID output will be "COMMIT_ID master" or "COMMIT_ID master~12"
-	return strings.Split(strings.Split(string(data), " ")[1], "~")[0], nil
+	// name-rev commitID output will be "master" or "master~12"
+	return strings.Split(strings.Split(string(data), "~")[0], "\n")[0], nil
 }
 
 // CommitFileStatus represents status of files in a commit.

modules/git/repo_commit.go

@@ -454,3 +454,21 @@ func (repo *Repository) getBranches(commit *Commit, limit int) ([]string, error)
 	}
 	return branches, nil
 }
+
+// GetCommitsFromIDs get commits from commit IDs
+func (repo *Repository) GetCommitsFromIDs(commitIDs []string) (commits *list.List) {
+	if len(commitIDs) == 0 {
+		return nil
+	}
+
+	commits = list.New()
+
+	for _, commitID := range commitIDs {
+		commit, err := repo.GetCommit(commitID)
+		if err == nil && commit != nil {
+			commits.PushBack(commit)
+		}
+	}
+
+	return commits
+}

modules/notification/base/notifier.go

@@ -36,6 +36,7 @@ type Notifier interface {
 	NotifyPullRequestSynchronized(doer *models.User, pr *models.PullRequest)
 	NotifyPullRequestReview(*models.PullRequest, *models.Review, *models.Comment)
 	NotifyPullRequestChangeTargetBranch(doer *models.User, pr *models.PullRequest, oldBranch string)
+	NotifyPullRequestPushCommits(doer *models.User, pr *models.PullRequest, comment *models.Comment)
 
 	NotifyCreateIssueComment(*models.User, *models.Repository,
 		*models.Issue, *models.Comment)

modules/notification/base/null.go

@@ -54,6 +54,10 @@ func (*NullNotifier) NotifyPullRequestSynchronized(doer *models.User, pr *models
 func (*NullNotifier) NotifyPullRequestChangeTargetBranch(doer *models.User, pr *models.PullRequest, oldBranch string) {
 }
 
+// NotifyPullRequestPushCommits notifies when push commits to pull request's head branch
+func (*NullNotifier) NotifyPullRequestPushCommits(doer *models.User, pr *models.PullRequest, comment *models.Comment) {
+}
+
 // NotifyUpdateComment places a place holder function
 func (*NullNotifier) NotifyUpdateComment(doer *models.User, c *models.Comment, oldContent string) {
 }

modules/notification/mail/mail.go

@@ -37,6 +37,8 @@ func (m *mailNotifier) NotifyCreateIssueComment(doer *models.User, repo *models.
 		act = models.ActionCommentIssue
 	} else if comment.Type == models.CommentTypeCode {
 		act = models.ActionCommentIssue
+	} else if comment.Type == models.CommentTypePullPush {
+		act = 0
 	}
 
 	if err := mailer.MailParticipantsComment(comment, act, issue); err != nil {
@@ -117,3 +119,29 @@ func (m *mailNotifier) NotifyMergePullRequest(pr *models.PullRequest, doer *mode
 		log.Error("MailParticipants: %v", err)
 	}
 }
+
+func (m *mailNotifier) NotifyPullRequestPushCommits(doer *models.User, pr *models.PullRequest, comment *models.Comment) {
+	var err error
+	if err = comment.LoadIssue(); err != nil {
+		log.Error("comment.LoadIssue: %v", err)
+		return
+	}
+	if err = comment.Issue.LoadRepo(); err != nil {
+		log.Error("comment.Issue.LoadRepo: %v", err)
+		return
+	}
+	if err = comment.Issue.LoadPullRequest(); err != nil {
+		log.Error("comment.Issue.LoadPullRequest: %v", err)
+		return
+	}
+	if err = comment.Issue.PullRequest.LoadBaseRepo(); err != nil {
+		log.Error("comment.Issue.PullRequest.LoadBaseRepo: %v", err)
+		return
+	}
+	if err := comment.LoadPushCommits(); err != nil {
+		log.Error("comment.LoadPushCommits: %v", err)
+	}
+	comment.Content = ""
+
+	m.NotifyCreateIssueComment(doer, comment.Issue.Repo, comment.Issue, comment)
+}

modules/notification/notification.go

@@ -94,6 +94,13 @@ func NotifyPullRequestChangeTargetBranch(doer *models.User, pr *models.PullReque
 	}
 }
 
+// NotifyPullRequestPushCommits notifies when push commits to pull request's head branch
+func NotifyPullRequestPushCommits(doer *models.User, pr *models.PullRequest, comment *models.Comment) {
+	for _, notifier := range notifiers {
+		notifier.NotifyPullRequestPushCommits(doer, pr, comment)
+	}
+}
+
 // NotifyUpdateComment notifies update comment to notifiers
 func NotifyUpdateComment(doer *models.User, c *models.Comment, oldContent string) {
 	for _, notifier := range notifiers {

modules/notification/ui/ui.go

@@ -105,6 +105,15 @@ func (ns *notificationService) NotifyPullRequestReview(pr *models.PullRequest, r
 	_ = ns.issueQueue.Push(opts)
 }
 
+func (ns *notificationService) NotifyPullRequestPushCommits(doer *models.User, pr *models.PullRequest, comment *models.Comment) {
+	var opts = issueNotificationOpts{
+		IssueID:              pr.IssueID,
+		NotificationAuthorID: doer.ID,
+		CommentID:            comment.ID,
+	}
+	_ = ns.issueQueue.Push(opts)
+}
+
 func (ns *notificationService) NotifyIssueChangeAssignee(doer *models.User, issue *models.Issue, assignee *models.User, removed bool, comment *models.Comment) {
 	if !removed {
 		var opts = issueNotificationOpts{

options/locale/locale_en-US.ini

@@ -1018,6 +1018,9 @@ issues.due_date = Due Date
 issues.invalid_due_date_format = "Due date format must be 'yyyy-mm-dd'."
 issues.error_modifying_due_date = "Failed to modify the due date."
 issues.error_removing_due_date = "Failed to remove the due date."
+issues.push_commit_1 = "added %d commit %s"
+issues.push_commits_n = "added %d commits %s"
+issues.force_push_codes =  `force-pushed the %[1]s branch from <a href="%[3]s">%[2]s</a> to <a href="%[5]s">%[4]s</a>.  %[6]s`
 issues.due_date_form = "yyyy-mm-dd"
 issues.due_date_form_add = "Add due date"
 issues.due_date_form_edit = "Edit"

routers/repo/issue.go

@@ -996,6 +996,12 @@ func ViewIssue(ctx *context.Context) {
 				ctx.ServerError("LoadResolveDoer", err)
 				return
 			}
+		} else if comment.Type == models.CommentTypePullPush {
+			participants = addParticipant(comment.Poster, participants)
+			if err = comment.LoadPushCommits(); err != nil {
+				ctx.ServerError("LoadPushCommits", err)
+				return
+			}
 		}
 	}
 

services/mailer/mail.go

@@ -319,6 +319,8 @@ func actionToTemplate(issue *models.Issue, actionType models.ActionType,
 			name = "code"
 		case models.CommentTypeAssignees:
 			name = "assigned"
+		case models.CommentTypePullPush:
+			name = "push"
 		default:
 			name = "default"
 		}