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|
module API
# MergeRequest API
class MergeRequests < Grape::API
before { authenticate! }
resource :projects do
helpers do
def handle_merge_request_errors!(errors)
if errors[:project_access].any?
error!(errors[:project_access], 422)
elsif errors[:branch_conflict].any?
error!(errors[:branch_conflict], 422)
end
not_found!
end
end
# List merge requests
#
# Parameters:
# id (required) - The ID of a project
# state (optional) - Return requests "merged", "opened" or "closed"
#
# Example:
# GET /projects/:id/merge_requests
# GET /projects/:id/merge_requests?state=opened
# GET /projects/:id/merge_requests?state=closed
#
get ":id/merge_requests" do
authorize! :read_merge_request, user_project
mrs = case params["state"]
when "opened" then user_project.merge_requests.opened
when "closed" then user_project.merge_requests.closed
when "merged" then user_project.merge_requests.merged
else user_project.merge_requests
end
present paginate(mrs), with: Entities::MergeRequest
end
# Show MR
#
# Parameters:
# id (required) - The ID of a project
# merge_request_id (required) - The ID of MR
#
# Example:
# GET /projects/:id/merge_request/:merge_request_id
#
get ":id/merge_request/:merge_request_id" do
merge_request = user_project.merge_requests.find(params[:merge_request_id])
authorize! :read_merge_request, merge_request
present merge_request, with: Entities::MergeRequest
end
# Create MR
#
# Parameters:
#
# id (required) - The ID of a project - this will be the source of the merge request
# source_branch (required) - The source branch
# target_branch (required) - The target branch
# target_project - The target project of the merge request defaults to the :id of the project
# assignee_id - Assignee user ID
# title (required) - Title of MR
# description - Description of MR
# labels (optional) - Labels for MR as a comma-separated list
#
# Example:
# POST /projects/:id/merge_requests
#
post ":id/merge_requests" do
authorize! :write_merge_request, user_project
required_attributes! [:source_branch, :target_branch, :title]
attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title, :target_project_id, :description]
attrs[:label_list] = params[:labels] if params[:labels].present?
merge_request = ::MergeRequests::CreateService.new(user_project, current_user, attrs).execute
if merge_request.valid?
present merge_request, with: Entities::MergeRequest
else
handle_merge_request_errors! merge_request.errors
end
end
# Update MR
#
# Parameters:
# id (required) - The ID of a project
# merge_request_id (required) - ID of MR
# source_branch - The source branch
# target_branch - The target branch
# assignee_id - Assignee user ID
# title - Title of MR
# state_event - Status of MR. (close|reopen|merge)
# description - Description of MR
# labels (optional) - Labels for a MR as a comma-separated list
# Example:
# PUT /projects/:id/merge_request/:merge_request_id
#
put ":id/merge_request/:merge_request_id" do
attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title, :state_event, :description]
attrs[:label_list] = params[:labels] if params[:labels].present?
merge_request = user_project.merge_requests.find(params[:merge_request_id])
authorize! :modify_merge_request, merge_request
merge_request = ::MergeRequests::UpdateService.new(user_project, current_user, attrs).execute(merge_request)
if merge_request.valid?
present merge_request, with: Entities::MergeRequest
else
handle_merge_request_errors! merge_request.errors
end
end
# Merge MR
#
# Parameters:
# id (required) - The ID of a project
# merge_request_id (required) - ID of MR
# merge_commit_message (optional) - Custom merge commit message
# Example:
# PUT /projects/:id/merge_request/:merge_request_id/merge
#
put ":id/merge_request/:merge_request_id/merge" do
merge_request = user_project.merge_requests.find(params[:merge_request_id])
action = if user_project.protected_branch?(merge_request.target_branch)
:push_code_to_protected_branches
else
:push_code
end
if can?(current_user, action, user_project)
if merge_request.unchecked?
merge_request.check_if_can_be_merged
end
if merge_request.open?
if merge_request.can_be_merged?
merge_request.automerge!(current_user, params[:merge_commit_message] || merge_request.merge_commit_message)
present merge_request, with: Entities::MergeRequest
else
render_api_error!('Branch cannot be merged', 405)
end
else
# Merge request can not be merged
# because it is already closed/merged
not_allowed!
end
else
# Merge request can not be merged
# because user dont have permissions to push into target branch
unauthorized!
end
end
# Get a merge request's comments
#
# Parameters:
# id (required) - The ID of a project
# merge_request_id (required) - ID of MR
# Examples:
# GET /projects/:id/merge_request/:merge_request_id/comments
#
get ":id/merge_request/:merge_request_id/comments" do
merge_request = user_project.merge_requests.find(params[:merge_request_id])
authorize! :read_merge_request, merge_request
present paginate(merge_request.notes), with: Entities::MRNote
end
# Post comment to merge request
#
# Parameters:
# id (required) - The ID of a project
# merge_request_id (required) - ID of MR
# note (required) - Text of comment
# Examples:
# POST /projects/:id/merge_request/:merge_request_id/comments
#
post ":id/merge_request/:merge_request_id/comments" do
required_attributes! [:note]
merge_request = user_project.merge_requests.find(params[:merge_request_id])
note = merge_request.notes.new(note: params[:note], project_id: user_project.id)
note.author = current_user
if note.save
present note, with: Entities::MRNote
else
not_found!
end
end
end
end
end
|
