git_push_service.rb 5.57 KB
Newer Older
1
2
class GitPushService < BaseService
  attr_accessor :push_data, :push_commits
3
4
  include Gitlab::CurrentSettings
  include Gitlab::Access
5
6

  # This method will be called after each git update
7
  # and only if the provided user and project are present in GitLab.
8
9
10
  #
  # All callbacks for post receive action should be placed here.
  #
11
12
  # Next, this method:
  #  1. Creates the push event
13
14
15
16
  #  2. Updates merge requests
  #  3. Recognizes cross-references from commit messages
  #  4. Executes the project's web hooks
  #  5. Executes the project's services
17
  #  6. Checks if the project's main language has changed
18
  #
19
  def execute
20
    @project.repository.after_push_commit(branch_name)
21

22
    if push_remove_branch?
23
      @project.repository.after_remove_branch
24
      @push_commits = []
25
    elsif push_to_new_branch?
26
      @project.repository.after_create_branch
27

28
      # Re-find the pushed commits.
29
      if is_default_branch?
30
        # Initial push to the default branch. Take the full history of that branch as "newly pushed".
31
        process_default_branch
32
33
34
      else
        # Use the pushed commits that aren't reachable by the default branch
        # as a heuristic. This may include more commits than are actually pushed, but
James Lopez's avatar
typo    
James Lopez committed
35
        # that shouldn't matter because we check for existing cross-references later.
36
        @push_commits = @project.repository.commits_between(@project.default_branch, params[:newrev])
37
38

        # don't process commits for the initial push to the default branch
39
        process_commit_messages
40
      end
41
    elsif push_to_existing_branch?
42
      # Collect data for this git push
43
      @push_commits = @project.repository.commits_between(params[:oldrev], params[:newrev])
44
      process_commit_messages
45
    end
46
47
48
    # Checks if the main language has changed in the project and if so
    # it updates it accordingly
    update_main_language
49
50
    # Update merge requests that may be affected by this push. A new branch
    # could cause the last commit of a merge request to change.
51
52
    update_merge_requests
  end
53

54
55
  protected

56
57
58
59
60
61
62
63
  def update_main_language
    current_language = @project.repository.main_language

    unless current_language == @project.main_language
      @project.update_attributes(main_language: current_language)
    end
  end

64
  def update_merge_requests
65
    @project.update_merge_requests(params[:oldrev], params[:newrev], params[:ref], current_user)
Douwe Maan's avatar
Douwe Maan committed
66

67
    EventCreateService.new.push(@project, current_user, build_push_data)
68
69
    @project.execute_hooks(build_push_data.dup, :push_hooks)
    @project.execute_services(build_push_data.dup, :push_hooks)
70
    CreateCommitBuildsService.new.execute(@project, current_user, build_push_data)
71
    ProjectCacheWorker.perform_async(@project.id)
72
73
  end

74
  def process_default_branch
75
    @push_commits = project.repository.commits(params[:newrev])
76
77
78
79
80
81
82
83
84
85

    # Ensure HEAD points to the default branch in case it is not master
    project.change_head(branch_name)

    # Set protection on the default branch if configured
    if (current_application_settings.default_branch_protection != PROTECTION_NONE)
      developers_can_push = current_application_settings.default_branch_protection == PROTECTION_DEV_CAN_PUSH ? true : false
      @project.protected_branches.create({ name: @project.default_branch, developers_can_push: developers_can_push })
    end
  end
86

87
88
  # Extract any GFM references from the pushed commit messages. If the configured issue-closing regex is matched,
  # close the referenced Issue. Create cross-reference Notes corresponding to any other referenced Mentionables.
89
90
  def process_commit_messages
    is_default_branch = is_default_branch?
91

92
93
    authors = Hash.new do |hash, commit|
      email = commit.author_email
94
      next hash[email] if hash.has_key?(email)
95

96
97
      hash[email] = commit_user(commit)
    end
98

99
    @push_commits.each do |commit|
100
101
102
      # Keep track of the issues that will be actually closed because they are on a default branch.
      # Hence, when creating cross-reference notes, the not-closed issues (on non-default branches)
      # will also have cross-reference.
103
104
105
106
107
108
      closed_issues = []

      if is_default_branch
        # Close issues if these commits were pushed to the project's default branch and the commit message matches the
        # closing regex. Exclude any mentioned Issues from cross-referencing even if the commits are being pushed to
        # a different branch.
109
        closed_issues = commit.closes_issues(current_user)
110
111
        closed_issues.each do |issue|
          Issues::CloseService.new(project, authors[commit], {}).execute(issue, commit)
112
        end
113
114
      end

115
      commit.create_cross_references!(authors[commit], closed_issues)
116
117
118
    end
  end

119
120
  def build_push_data
    @push_data ||= Gitlab::PushDataBuilder.
121
      build(@project, current_user, params[:oldrev], params[:newrev], params[:ref], push_commits)
122
123
  end

124
  def push_to_existing_branch?
125
    # Return if this is not a push to a branch (e.g. new commits)
126
    Gitlab::Git.branch_ref?(params[:ref]) && !Gitlab::Git.blank_ref?(params[:oldrev])
127
128
  end

129
  def push_to_new_branch?
130
    Gitlab::Git.branch_ref?(params[:ref]) && Gitlab::Git.blank_ref?(params[:oldrev])
131
132
  end

133
  def push_remove_branch?
134
    Gitlab::Git.branch_ref?(params[:ref]) && Gitlab::Git.blank_ref?(params[:newrev])
Dmitriy Zaporozhets's avatar
Dmitriy Zaporozhets committed
135
136
  end

137
  def push_to_branch?
138
    Gitlab::Git.branch_ref?(params[:ref])
139
140
  end

141
  def is_default_branch?
142
    Gitlab::Git.branch_ref?(params[:ref]) &&
143
      (Gitlab::Git.ref_name(params[:ref]) == project.default_branch || project.default_branch.nil?)
144
145
  end

146
  def commit_user(commit)
147
    commit.author || current_user
148
  end
149
150

  def branch_name
151
    @branch_name ||= Gitlab::Git.ref_name(params[:ref])
152
  end
153
end