248 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			248 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Go
		
	
	
	
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package agit
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import (
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	"context"
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	"fmt"
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	"os"
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	"strings"
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	issues_model "code.gitea.io/gitea/models/issues"
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	repo_model "code.gitea.io/gitea/models/repo"
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	user_model "code.gitea.io/gitea/models/user"
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	"code.gitea.io/gitea/modules/git"
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	"code.gitea.io/gitea/modules/log"
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	"code.gitea.io/gitea/modules/notification"
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	"code.gitea.io/gitea/modules/private"
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	pull_service "code.gitea.io/gitea/services/pull"
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)
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// ProcReceive handle proc receive work
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func ProcReceive(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, opts *private.HookOptions) ([]private.HookProcReceiveRefResult, error) {
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	// TODO: Add more options?
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	var (
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		topicBranch string
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		title       string
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		description string
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		forcePush   bool
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	)
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	results := make([]private.HookProcReceiveRefResult, 0, len(opts.OldCommitIDs))
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	ownerName := repo.OwnerName
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	repoName := repo.Name
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	topicBranch = opts.GitPushOptions["topic"]
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	_, forcePush = opts.GitPushOptions["force-push"]
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	for i := range opts.OldCommitIDs {
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		if opts.NewCommitIDs[i] == git.EmptySHA {
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			results = append(results, private.HookProcReceiveRefResult{
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				OriginalRef: opts.RefFullNames[i],
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				OldOID:      opts.OldCommitIDs[i],
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				NewOID:      opts.NewCommitIDs[i],
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				Err:         "Can't delete not exist branch",
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			})
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			continue
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		}
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		if !strings.HasPrefix(opts.RefFullNames[i], git.PullRequestPrefix) {
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			results = append(results, private.HookProcReceiveRefResult{
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				IsNotMatched: true,
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				OriginalRef:  opts.RefFullNames[i],
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			})
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			continue
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		}
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		baseBranchName := opts.RefFullNames[i][len(git.PullRequestPrefix):]
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		curentTopicBranch := ""
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		if !gitRepo.IsBranchExist(baseBranchName) {
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			// try match refs/for/<target-branch>/<topic-branch>
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			for p, v := range baseBranchName {
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				if v == '/' && gitRepo.IsBranchExist(baseBranchName[:p]) && p != len(baseBranchName)-1 {
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					curentTopicBranch = baseBranchName[p+1:]
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					baseBranchName = baseBranchName[:p]
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					break
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				}
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			}
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		}
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		if len(topicBranch) == 0 && len(curentTopicBranch) == 0 {
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			results = append(results, private.HookProcReceiveRefResult{
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				OriginalRef: opts.RefFullNames[i],
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				OldOID:      opts.OldCommitIDs[i],
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				NewOID:      opts.NewCommitIDs[i],
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				Err:         "topic-branch is not set",
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			})
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			continue
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		}
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		var headBranch string
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		userName := strings.ToLower(opts.UserName)
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		if len(curentTopicBranch) == 0 {
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			curentTopicBranch = topicBranch
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		}
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		// because different user maybe want to use same topic,
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		// So it's better to make sure the topic branch name
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		// has user name prefix
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		if !strings.HasPrefix(curentTopicBranch, userName+"/") {
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			headBranch = userName + "/" + curentTopicBranch
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		} else {
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			headBranch = curentTopicBranch
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		}
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		pr, err := issues_model.GetUnmergedPullRequest(repo.ID, repo.ID, headBranch, baseBranchName, issues_model.PullRequestFlowAGit)
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		if err != nil {
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			if !issues_model.IsErrPullRequestNotExist(err) {
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				return nil, fmt.Errorf("Failed to get unmerged agit flow pull request in repository: %s/%s Error: %v", ownerName, repoName, err)
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			}
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			// create a new pull request
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			if len(title) == 0 {
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				var has bool
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				title, has = opts.GitPushOptions["title"]
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				if !has || len(title) == 0 {
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					commit, err := gitRepo.GetCommit(opts.NewCommitIDs[i])
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					if err != nil {
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						return nil, fmt.Errorf("Failed to get commit %s in repository: %s/%s Error: %v", opts.NewCommitIDs[i], ownerName, repoName, err)
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					}
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					title = strings.Split(commit.CommitMessage, "\n")[0]
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				}
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				description = opts.GitPushOptions["description"]
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			}
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			pusher, err := user_model.GetUserByID(opts.UserID)
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			if err != nil {
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				return nil, fmt.Errorf("Failed to get user. Error: %v", err)
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			}
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			prIssue := &issues_model.Issue{
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				RepoID:   repo.ID,
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				Title:    title,
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				PosterID: pusher.ID,
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				Poster:   pusher,
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				IsPull:   true,
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				Content:  description,
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			}
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			pr := &issues_model.PullRequest{
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				HeadRepoID:   repo.ID,
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				BaseRepoID:   repo.ID,
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				HeadBranch:   headBranch,
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				HeadCommitID: opts.NewCommitIDs[i],
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				BaseBranch:   baseBranchName,
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				HeadRepo:     repo,
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				BaseRepo:     repo,
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				MergeBase:    "",
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				Type:         issues_model.PullRequestGitea,
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				Flow:         issues_model.PullRequestFlowAGit,
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			}
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			if err := pull_service.NewPullRequest(ctx, repo, prIssue, []int64{}, []string{}, pr, []int64{}); err != nil {
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				return nil, err
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			}
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			log.Trace("Pull request created: %d/%d", repo.ID, prIssue.ID)
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			results = append(results, private.HookProcReceiveRefResult{
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				Ref:         pr.GetGitRefName(),
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				OriginalRef: opts.RefFullNames[i],
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				OldOID:      git.EmptySHA,
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				NewOID:      opts.NewCommitIDs[i],
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			})
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			continue
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		}
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		// update exist pull request
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		if err := pr.LoadBaseRepoCtx(ctx); err != nil {
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			return nil, fmt.Errorf("Unable to load base repository for PR[%d] Error: %v", pr.ID, err)
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		}
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		oldCommitID, err := gitRepo.GetRefCommitID(pr.GetGitRefName())
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		if err != nil {
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			return nil, fmt.Errorf("Unable to get ref commit id in base repository for PR[%d] Error: %v", pr.ID, err)
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		}
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		if oldCommitID == opts.NewCommitIDs[i] {
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			results = append(results, private.HookProcReceiveRefResult{
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				OriginalRef: opts.RefFullNames[i],
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				OldOID:      opts.OldCommitIDs[i],
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				NewOID:      opts.NewCommitIDs[i],
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				Err:         "new commit is same with old commit",
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			})
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			continue
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		}
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		if !forcePush {
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			output, _, err := git.NewCommand(ctx, "rev-list", "--max-count=1", oldCommitID, "^"+opts.NewCommitIDs[i]).RunStdString(&git.RunOpts{Dir: repo.RepoPath(), Env: os.Environ()})
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			if err != nil {
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				return nil, fmt.Errorf("Fail to detect force push: %v", err)
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			} else if len(output) > 0 {
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				results = append(results, private.HookProcReceiveRefResult{
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					OriginalRef: opts.RefFullNames[i],
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					OldOID:      opts.OldCommitIDs[i],
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					NewOID:      opts.NewCommitIDs[i],
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					Err:         "request `force-push` push option",
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				})
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				continue
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			}
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		}
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		pr.HeadCommitID = opts.NewCommitIDs[i]
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		if err = pull_service.UpdateRef(ctx, pr); err != nil {
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			return nil, fmt.Errorf("Failed to update pull ref. Error: %v", err)
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		}
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		pull_service.AddToTaskQueue(pr)
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		pusher, err := user_model.GetUserByID(opts.UserID)
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		if err != nil {
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			return nil, fmt.Errorf("Failed to get user. Error: %v", err)
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		}
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		err = pr.LoadIssue()
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		if err != nil {
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			return nil, fmt.Errorf("Failed to load pull issue. Error: %v", err)
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		}
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		comment, err := issues_model.CreatePushPullComment(ctx, pusher, pr, oldCommitID, opts.NewCommitIDs[i])
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		if err == nil && comment != nil {
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			notification.NotifyPullRequestPushCommits(pusher, pr, comment)
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		}
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		notification.NotifyPullRequestSynchronized(pusher, pr)
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		isForcePush := comment != nil && comment.IsForcePush
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		results = append(results, private.HookProcReceiveRefResult{
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			OldOID:      oldCommitID,
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			NewOID:      opts.NewCommitIDs[i],
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			Ref:         pr.GetGitRefName(),
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			OriginalRef: opts.RefFullNames[i],
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			IsForcePush: isForcePush,
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		})
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	}
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	return results, nil
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}
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// UserNameChanged handle user name change for agit flow pull
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func UserNameChanged(user *user_model.User, newName string) error {
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	pulls, err := issues_model.GetAllUnmergedAgitPullRequestByPoster(user.ID)
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	if err != nil {
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		return err
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	}
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	newName = strings.ToLower(newName)
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	for _, pull := range pulls {
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		pull.HeadBranch = strings.TrimPrefix(pull.HeadBranch, user.LowerName+"/")
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		pull.HeadBranch = newName + "/" + pull.HeadBranch
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		if err = pull.UpdateCols("head_branch"); err != nil {
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			return err
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		}
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	}
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	return nil
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}
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