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class Projects::MergeRequestsController < Projects::ApplicationController
before_action :module_enabled
before_action :merge_request, only: [
:edit, :update, :show, :diffs, :commits, :builds, :merge, :merge_check,
:ci_status, :toggle_subscription, :cancel_merge_when_build_succeeds
]
before_action :closes_issues, only: [:edit, :update, :show, :diffs, :commits, :builds]
before_action :validates_merge_request, only: [:show, :diffs, :commits, :builds]
before_action :define_show_vars, only: [:show, :diffs, :commits, :builds]
before_action :define_widget_vars, only: [:merge, :cancel_merge_when_build_succeeds, :merge_check]
before_action :ensure_ref_fetched, only: [:show, :diffs, :commits, :builds]
# Allow read any merge_request
before_action :authorize_read_merge_request!
# Allow write(create) merge_request
before_action :authorize_create_merge_request!, only: [:new, :create]
# Allow modify merge_request
before_action :authorize_update_merge_request!, only: [:close, :edit, :update, :sort]
def index
terms = params['issue_search']
@merge_requests = get_merge_requests_collection
if terms.present?
if terms =~ /\A[#!](\d+)\z/
@merge_requests = @merge_requests.where(iid: $1)
else
@merge_requests = @merge_requests.full_search(terms)
end
end
@merge_requests = @merge_requests.page(params[:page]).per(PER_PAGE)
@merge_requests = @merge_requests.preload(:target_project)
respond_to do |format|
format.html
format.json do
render json: {
html: view_to_html_string("projects/merge_requests/_merge_requests")
}
end
end
end
def show
@note_counts = Note.where(commit_id: @merge_request.commits.map(&:id)).
group(:commit_id).count
respond_to do |format|
format.html
format.json { render json: @merge_request }
format.diff { render text: @merge_request.to_diff(current_user) }
format.patch { render text: @merge_request.to_patch(current_user) }
end
end
def diffs
@commit = @merge_request.last_commit
@base_commit = @merge_request.diff_base_commit
# MRs created before 8.4 don't have a diff_base_commit,
# but we need it for the "View file @ ..." link by deleted files
@base_commit ||= @merge_request.first_commit.parent || @merge_request.first_commit
@comments_allowed = @reply_allowed = true
@comments_target = {
noteable_type: 'MergeRequest',
noteable_id: @merge_request.id
}
@line_notes = @merge_request.notes.where("line_code is not null")
respond_to do |format|
format.html
format.json { render json: { html: view_to_html_string("projects/merge_requests/show/_diffs") } }
end
end
def commits
respond_to do |format|
format.html { render 'show' }
format.json { render json: { html: view_to_html_string('projects/merge_requests/show/_commits') } }
end
end
def builds
respond_to do |format|
format.html { render 'show' }
format.json { render json: { html: view_to_html_string('projects/merge_requests/show/_builds') } }
end
end
def new
params[:merge_request] ||= ActionController::Parameters.new(source_project: @project)
@merge_request = MergeRequests::BuildService.new(project, current_user, merge_request_params).execute
@noteable = @merge_request
@target_branches = if @merge_request.target_project
@merge_request.target_project.repository.branch_names
else
[]
end
@target_project = merge_request.target_project
@source_project = merge_request.source_project
@commits = @merge_request.compare_commits.reverse
@commit = @merge_request.last_commit
@base_commit = @merge_request.diff_base_commit
@diffs = @merge_request.compare_diffs
@ci_commit = @merge_request.ci_commit
@statuses = @ci_commit.statuses if @ci_commit
@note_counts = Note.where(commit_id: @commits.map(&:id)).
group(:commit_id).count
end
def create
@target_branches ||= []
@merge_request = MergeRequests::CreateService.new(project, current_user, merge_request_params).execute
if @merge_request.valid?
redirect_to(merge_request_path(@merge_request))
else
@source_project = @merge_request.source_project
@target_project = @merge_request.target_project
render action: "new"
end
end
def edit
@source_project = @merge_request.source_project
@target_project = @merge_request.target_project
@target_branches = @merge_request.target_project.repository.branch_names
end
def update
@merge_request = MergeRequests::UpdateService.new(project, current_user, merge_request_params).execute(@merge_request)
if @merge_request.valid?
respond_to do |format|
format.js
format.html do
redirect_to([@merge_request.target_project.namespace.becomes(Namespace),
@merge_request.target_project, @merge_request])
end
format.json do
render json: {
saved: @merge_request.valid?,
assignee_avatar_url: @merge_request.assignee.try(:avatar_url)
}
end
end
else
render "edit"
end
end
def merge_check
@merge_request.check_if_can_be_merged
render partial: "projects/merge_requests/widget/show.html.haml", layout: false
end
def cancel_merge_when_build_succeeds
return access_denied! unless @merge_request.can_cancel_merge_when_build_succeeds?(current_user)
MergeRequests::MergeWhenBuildSucceedsService.new(@project, current_user).cancel(@merge_request)
end
def merge
return access_denied! unless @merge_request.can_be_merged_by?(current_user)
unless @merge_request.mergeable?
@status = :failed
return
end
@merge_request.update(merge_error: nil)
if params[:merge_when_build_succeeds].present? && @merge_request.ci_commit && @merge_request.ci_commit.active?
MergeRequests::MergeWhenBuildSucceedsService.new(@project, current_user, merge_params)
.execute(@merge_request)
@status = :merge_when_build_succeeds
else
MergeWorker.perform_async(@merge_request.id, current_user.id, params)
@status = :success
end
end
def branch_from
#This is always source
@source_project = @merge_request.nil? ? @project : @merge_request.source_project
@commit = @repository.commit(params[:ref]) if params[:ref].present?
end
def branch_to
@target_project = selected_target_project
@commit = @target_project.commit(params[:ref]) if params[:ref].present?
end
def update_branches
@target_project = selected_target_project
@target_branches = @target_project.repository.branch_names
respond_to do |format|
format.js
end
end
def ci_status
ci_service = @merge_request.source_project.ci_service
status = ci_service.commit_status(merge_request.last_commit.sha, merge_request.source_branch)
if ci_service.respond_to?(:commit_coverage)
coverage = ci_service.commit_coverage(merge_request.last_commit.sha, merge_request.source_branch)
end
response = {
status: status,
coverage: coverage
}
render json: response
end
def toggle_subscription
@merge_request.toggle_subscription(current_user)
render nothing: true
end
protected
def selected_target_project
if @project.id.to_s == params[:target_project_id] || @project.forked_project_link.nil?
@project
else
@project.forked_project_link.forked_from_project
end
end
def merge_request
@merge_request ||= @project.merge_requests.find_by!(iid: params[:id])
end
def closes_issues
@closes_issues ||= @merge_request.closes_issues
end
def authorize_update_merge_request!
return render_404 unless can?(current_user, :update_merge_request, @merge_request)
end
def authorize_admin_merge_request!
return render_404 unless can?(current_user, :admin_merge_request, @merge_request)
end
def module_enabled
return render_404 unless @project.merge_requests_enabled
end
def validates_merge_request
# If source project was removed (Ex. mr from fork to origin)
return invalid_mr unless @merge_request.source_project
# Show git not found page
# if there is no saved commits between source & target branch
if @merge_request.commits.blank?
# and if target branch doesn't exist
return invalid_mr unless @merge_request.target_branch_exists?
# or if source branch doesn't exist
return invalid_mr unless @merge_request.source_branch_exists?
end
end
def define_show_vars
# Build a note object for comment form
@note = @project.notes.new(noteable: @merge_request)
@notes = @merge_request.mr_and_commit_notes.nonawards.inc_author.fresh
@discussions = Note.discussions_from_notes(@notes)
@noteable = @merge_request
# Get commits from repository
# or from cache if already merged
@commits = @merge_request.commits
@merge_request_diff = @merge_request.merge_request_diff
@ci_commit = @merge_request.ci_commit
@statuses = @ci_commit.statuses if @ci_commit
if @merge_request.locked_long_ago?
@merge_request.unlock_mr
@merge_request.close
end
end
def define_widget_vars
@ci_commit = @merge_request.ci_commit
closes_issues
end
def invalid_mr
# Render special view for MR with removed source or target branch
render 'invalid'
end
def merge_request_params
params.require(:merge_request).permit(
:title, :assignee_id, :source_project_id, :source_branch,
:target_project_id, :target_branch, :milestone_id,
:state_event, :description, :task_num, label_ids: []
)
end
def merge_params
params.permit(:should_remove_source_branch, :commit_message)
end
# Make sure merge requests created before 8.0
# have head file in refs/merge-requests/
def ensure_ref_fetched
@merge_request.ensure_ref_fetched
end
end