debian-mirror-gitlab/app/services/git_push_service.rb

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class GitPushService
attr_accessor :project, :user, :push_data, :push_commits
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include Gitlab::CurrentSettings
include Gitlab::Access
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# This method will be called after each git update
# and only if the provided user and project is present in GitLab.
#
# All callbacks for post receive action should be placed here.
#
# Next, this method:
# 1. Creates the push event
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# 2. Updates merge requests
# 3. Recognizes cross-references from commit messages
# 4. Executes the project's web hooks
# 5. Executes the project's services
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#
def execute(project, user, oldrev, newrev, ref)
@project, @user = project, user
project.repository.expire_cache
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if push_remove_branch?(ref, newrev)
@push_commits = []
elsif push_to_new_branch?(ref, oldrev)
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# Re-find the pushed commits.
if is_default_branch?(ref)
# Initial push to the default branch. Take the full history of that branch as "newly pushed".
@push_commits = project.repository.commits(newrev)
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# Ensure HEAD points to the default branch in case it is not master
branch_name = Gitlab::Git.ref_name(ref)
project.change_head(branch_name)
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# 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
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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
# that shouldn't matter because we check for existing cross-references later.
@push_commits = project.repository.commits_between(project.default_branch, newrev)
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# don't process commits for the initial push to the default branch
process_commit_messages(ref)
end
elsif push_to_existing_branch?(ref, oldrev)
# Collect data for this git push
@push_commits = project.repository.commits_between(oldrev, newrev)
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process_commit_messages(ref)
end
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# Update merge requests that may be affected by this push. A new branch
# could cause the last commit of a merge request to change.
project.update_merge_requests(oldrev, newrev, ref, @user)
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@push_data = build_push_data(oldrev, newrev, ref)
EventCreateService.new.push(project, user, @push_data)
project.execute_hooks(@push_data.dup, :push_hooks)
project.execute_services(@push_data.dup, :push_hooks)
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ProjectCacheWorker.perform_async(project.id)
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end
protected
# 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.
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def process_commit_messages(ref)
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is_default_branch = is_default_branch?(ref)
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authors = Hash.new do |hash, commit|
email = commit.author_email
next hash[email] if hash.has_key?(email)
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hash[email] = commit_user(commit)
end
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@push_commits.each do |commit|
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# 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.
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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.
closed_issues = commit.closes_issues(user)
closed_issues.each do |issue|
Issues::CloseService.new(project, authors[commit], {}).execute(issue, commit)
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end
end
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commit.create_cross_references!(authors[commit], closed_issues)
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end
end
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def build_push_data(oldrev, newrev, ref)
Gitlab::PushDataBuilder.
build(project, user, oldrev, newrev, ref, push_commits)
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end
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def push_to_existing_branch?(ref, oldrev)
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# Return if this is not a push to a branch (e.g. new commits)
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Gitlab::Git.branch_ref?(ref) && !Gitlab::Git.blank_ref?(oldrev)
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end
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def push_to_new_branch?(ref, oldrev)
Gitlab::Git.branch_ref?(ref) && Gitlab::Git.blank_ref?(oldrev)
end
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def push_remove_branch?(ref, newrev)
Gitlab::Git.branch_ref?(ref) && Gitlab::Git.blank_ref?(newrev)
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end
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def push_to_branch?(ref)
Gitlab::Git.branch_ref?(ref)
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end
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def is_default_branch?(ref)
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Gitlab::Git.branch_ref?(ref) &&
(Gitlab::Git.ref_name(ref) == project.default_branch || project.default_branch.nil?)
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end
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def commit_user(commit)
commit.author || user
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end
end