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# == Schema Information
#
# Table name: merge_requests
#
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# id :integer not null, primary key
# target_branch :string(255) not null
# source_branch :string(255) not null
# source_project_id :integer not null
# author_id :integer
# assignee_id :integer
# title :string(255)
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# created_at :datetime
# updated_at :datetime
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# milestone_id :integer
# state :string(255)
# merge_status :string(255)
# target_project_id :integer not null
# iid :integer
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# description :text
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#
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require Rails . root . join ( " app/models/commit " )
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require Rails . root . join ( " lib/static_model " )
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class MergeRequest < ActiveRecord :: Base
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include Issuable
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include InternalId
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belongs_to :target_project , foreign_key : :target_project_id , class_name : " Project "
belongs_to :source_project , foreign_key : :source_project_id , class_name : " Project "
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has_one :merge_request_diff , dependent : :destroy
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after_create :create_merge_request_diff
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after_update :update_merge_request_diff
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delegate :commits , :diffs , :last_commit , :last_commit_short_sha , to : :merge_request_diff , prefix : nil
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attr_accessor :should_remove_source_branch
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# When this attribute is true some MR validation is ignored
# It allows us to close or modify broken merge requests
attr_accessor :allow_broken
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# Temporary fields to store compare vars
# when creating new merge request
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attr_accessor :can_be_created , :compare_failed , :compare_base_commit ,
:compare_commits , :compare_diffs
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ActsAsTaggableOn . strict_case_match = true
acts_as_taggable_on :labels
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state_machine :state , initial : :opened do
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event :close do
transition [ :reopened , :opened ] = > :closed
end
event :merge do
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transition [ :reopened , :opened , :locked ] = > :merged
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end
event :reopen do
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transition closed : :reopened
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end
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event :lock_mr do
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transition [ :reopened , :opened ] = > :locked
end
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event :unlock_mr do
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transition locked : :reopened
end
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state :opened
state :reopened
state :closed
state :merged
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state :locked
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end
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state_machine :merge_status , initial : :unchecked do
event :mark_as_unchecked do
transition [ :can_be_merged , :cannot_be_merged ] = > :unchecked
end
event :mark_as_mergeable do
transition unchecked : :can_be_merged
end
event :mark_as_unmergeable do
transition unchecked : :cannot_be_merged
end
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state :unchecked
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state :can_be_merged
state :cannot_be_merged
end
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validates :source_project , presence : true , unless : :allow_broken
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validates :source_branch , presence : true
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validates :target_project , presence : true
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validates :target_branch , presence : true
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validate :validate_branches
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validate :validate_fork
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scope :of_group , - > ( group ) { where ( " source_project_id in (:group_project_ids) OR target_project_id in (:group_project_ids) " , group_project_ids : group . project_ids ) }
scope :of_user_team , - > ( team ) { where ( " (source_project_id in (:team_project_ids) OR target_project_id in (:team_project_ids) AND assignee_id in (:team_member_ids)) " , team_project_ids : team . project_ids , team_member_ids : team . member_ids ) }
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scope :merged , - > { with_state ( :merged ) }
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scope :by_branch , - > ( branch_name ) { where ( " (source_branch LIKE :branch) OR (target_branch LIKE :branch) " , branch : branch_name ) }
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scope :cared , - > ( user ) { where ( 'assignee_id = :user OR author_id = :user' , user : user . id ) }
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scope :by_milestone , - > ( milestone ) { where ( milestone_id : milestone ) }
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scope :in_projects , - > ( project_ids ) { where ( " source_project_id in (:project_ids) OR target_project_id in (:project_ids) " , project_ids : project_ids ) }
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scope :of_projects , - > ( ids ) { where ( target_project_id : ids ) }
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# Closed scope for merge request should return
# both merged and closed mr's
scope :closed , - > { with_states ( :closed , :merged ) }
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scope :declined , - > { with_states ( :closed ) }
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def validate_branches
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if target_project == source_project && target_branch == source_branch
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errors . add :branch_conflict , " You can not use same project/branch for source and target "
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end
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if opened? || reopened?
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similar_mrs = self . target_project . merge_requests . where ( source_branch : source_branch , target_branch : target_branch , source_project_id : source_project . id ) . opened
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similar_mrs = similar_mrs . where ( 'id not in (?)' , self . id ) if self . id
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if similar_mrs . any?
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errors . add :base , " Cannot Create: This merge request already exists: #{ similar_mrs . pluck ( :title ) } "
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end
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end
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end
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def validate_fork
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return true unless target_project && source_project
if target_project == source_project
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true
else
# If source and target projects are different
# we should check if source project is actually a fork of target project
if source_project . forked_from? ( target_project )
true
else
errors . add :base , " Source project is not a fork of target project "
end
end
end
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def update_merge_request_diff
if source_branch_changed? || target_branch_changed?
reload_code
mark_as_unchecked
end
end
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def reload_code
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if merge_request_diff && open ?
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merge_request_diff . reload_content
end
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end
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def check_if_can_be_merged
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if Gitlab :: Satellite :: MergeAction . new ( self . author , self ) . can_be_merged?
mark_as_mergeable
else
mark_as_unmergeable
end
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end
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def merge_event
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self . target_project . events . where ( target_id : self . id , target_type : " MergeRequest " , action : Event :: MERGED ) . last
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end
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def closed_event
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self . target_project . events . where ( target_id : self . id , target_type : " MergeRequest " , action : Event :: CLOSED ) . last
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end
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def automerge! ( current_user , commit_message = nil )
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MergeRequests :: AutoMergeService . new . execute ( self , current_user , commit_message )
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end
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def open?
opened? || reopened?
end
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def mr_and_commit_notes
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# Fetch comments only from last 100 commits
commits_for_notes_limit = 100
commit_ids = commits . last ( commits_for_notes_limit ) . map ( & :id )
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project . notes . where (
" (noteable_type = 'MergeRequest' AND noteable_id = :mr_id) OR (noteable_type = 'Commit' AND commit_id IN (:commit_ids)) " ,
mr_id : id ,
commit_ids : commit_ids
)
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end
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# Returns the raw diff for this merge request
#
# see "git diff"
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def to_diff ( current_user )
Gitlab :: Satellite :: MergeAction . new ( current_user , self ) . diff_in_satellite
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end
# Returns the commit as a series of email patches.
#
# see "git format-patch"
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def to_patch ( current_user )
Gitlab :: Satellite :: MergeAction . new ( current_user , self ) . format_patch
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end
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def for_fork?
target_project != source_project
end
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def project
target_project
end
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# Return the set of issues that will be closed if this merge request is accepted.
def closes_issues
if target_branch == project . default_branch
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issues = commits . flat_map { | c | c . closes_issues ( project ) }
issues += Gitlab :: ClosingIssueExtractor . closed_by_message_in_project ( description , project )
issues . uniq . sort_by ( & :id )
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else
[ ]
end
end
# Mentionable override.
def gfm_reference
" merge request ! #{ iid } "
end
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def target_project_path
if target_project
target_project . path_with_namespace
else
" (removed) "
end
end
def source_project_path
if source_project
source_project . path_with_namespace
else
" (removed) "
end
end
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def source_project_namespace
if source_project && source_project . namespace
source_project . namespace . path
else
" (removed) "
end
end
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def target_project_namespace
if target_project && target_project . namespace
target_project . namespace . path
else
" (removed) "
end
end
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def source_branch_exists?
return false unless self . source_project
self . source_project . repository . branch_names . include? ( self . source_branch )
end
def target_branch_exists?
return false unless self . target_project
self . target_project . repository . branch_names . include? ( self . target_branch )
end
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# Reset merge request events cache
#
# Since we do cache @event we need to reset cache in special cases:
# * when a merge request is updated
# Events cache stored like events/23-20130109142513.
# The cache key includes updated_at timestamp.
# Thus it will automatically generate a new fragment
# when the event is updated because the key changes.
def reset_events_cache
Event . where ( target_id : self . id , target_type : 'MergeRequest' ) .
order ( 'id DESC' ) . limit ( 100 ) .
update_all ( updated_at : Time . now )
end
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def merge_commit_message
message = " Merge branch ' #{ source_branch } ' into ' #{ target_branch } ' "
message << " \n \n "
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message << title . to_s
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message << " \n \n "
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message << description . to_s
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message << " \n \n "
message << " See merge request ! #{ iid } "
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message
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end
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# Return array of possible target branches
# dependes on target project of MR
def target_branches
if target_project . nil?
[ ]
else
target_project . repository . branch_names
end
end
# Return array of possible source branches
# dependes on source project of MR
def source_branches
if source_project . nil?
[ ]
else
source_project . repository . branch_names
end
end
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end