gitlab-org--gitlab-foss/app/services/system_note_service.rb

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# SystemNoteService
#
# Used for creating system notes (e.g., when a user references a merge request
# from an issue, an issue's assignee changes, an issue is closed, etc.)
module SystemNoteService
extend self
# Called when commits are added to a Merge Request
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# new_commits - Array of Commits added since last push
# existing_commits - Array of Commits added in a previous push
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# oldrev - Optional String SHA of a previous Commit
#
# See new_commit_summary and existing_commit_summary.
#
# Returns the created Note object
def add_commits(noteable, project, author, new_commits, existing_commits = [], oldrev = nil)
total_count = new_commits.length + existing_commits.length
commits_text = "#{total_count} commit".pluralize(total_count)
body = "added #{commits_text}\n\n"
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body << commits_list(noteable, new_commits, existing_commits, oldrev)
body << "\n\n[Compare with previous version](#{diff_comparison_url(noteable, project, oldrev)})"
create_note(NoteSummary.new(noteable, project, author, body, action: 'commit', commit_count: total_count))
end
# Called when the assignee of a Noteable is changed or removed
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# assignee - User being assigned, or nil
#
# Example Note text:
#
# "removed assignee"
#
# "assigned to @rspeicher"
#
# Returns the created Note object
def change_assignee(noteable, project, author, assignee)
body = assignee.nil? ? 'removed assignee' : "assigned to #{assignee.to_reference}"
create_note(NoteSummary.new(noteable, project, author, body, action: 'assignee'))
end
# Called when the assignees of an Issue is changed or removed
#
# issue - Issue object
# project - Project owning noteable
# author - User performing the change
# assignees - Users being assigned, or nil
#
# Example Note text:
#
# "removed all assignees"
#
# "assigned to @user1 additionally to @user2"
#
# "assigned to @user1, @user2 and @user3 and unassigned from @user4 and @user5"
#
# "assigned to @user1 and @user2"
#
# Returns the created Note object
def change_issue_assignees(issue, project, author, old_assignees)
unassigned_users = old_assignees - issue.assignees
added_users = issue.assignees.to_a - old_assignees
text_parts = []
text_parts << "assigned to #{added_users.map(&:to_reference).to_sentence}" if added_users.any?
text_parts << "unassigned #{unassigned_users.map(&:to_reference).to_sentence}" if unassigned_users.any?
body = text_parts.join(' and ')
create_note(NoteSummary.new(issue, project, author, body, action: 'assignee'))
end
# Called when one or more labels on a Noteable are added and/or removed
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# added_labels - Array of Labels added
# removed_labels - Array of Labels removed
#
# Example Note text:
#
# "added ~1 and removed ~2 ~3 labels"
#
# "added ~4 label"
#
# "removed ~5 label"
#
# Returns the created Note object
def change_label(noteable, project, author, added_labels, removed_labels)
labels_count = added_labels.count + removed_labels.count
references = ->(label) { label.to_reference(format: :id) }
added_labels = added_labels.map(&references).join(' ')
removed_labels = removed_labels.map(&references).join(' ')
body = ''
if added_labels.present?
body << "added #{added_labels}"
body << ' and ' if removed_labels.present?
end
if removed_labels.present?
body << "removed #{removed_labels}"
end
body << ' ' << 'label'.pluralize(labels_count)
create_note(NoteSummary.new(noteable, project, author, body, action: 'label'))
end
# Called when the milestone of a Noteable is changed
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# milestone - Milestone being assigned, or nil
#
# Example Note text:
#
# "removed milestone"
#
# "changed milestone to 7.11"
#
# Returns the created Note object
def change_milestone(noteable, project, author, milestone)
format = milestone&.group_milestone? ? :name : :iid
body = milestone.nil? ? 'removed milestone' : "changed milestone to #{milestone.to_reference(project, format: format)}"
create_note(NoteSummary.new(noteable, project, author, body, action: 'milestone'))
end
# Called when the estimated time of a Noteable is changed
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# time_estimate - Estimated time
#
# Example Note text:
#
# "removed time estimate"
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#
# "changed time estimate to 3d 5h"
#
# Returns the created Note object
def change_time_estimate(noteable, project, author)
parsed_time = Gitlab::TimeTrackingFormatter.output(noteable.time_estimate)
body = if noteable.time_estimate == 0
"removed time estimate"
else
"changed time estimate to #{parsed_time}"
end
create_note(NoteSummary.new(noteable, project, author, body, action: 'time_tracking'))
end
# Called when the spent time of a Noteable is changed
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# time_spent - Spent time
#
# Example Note text:
#
# "removed time spent"
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#
# "added 2h 30m of time spent"
#
# Returns the created Note object
def change_time_spent(noteable, project, author)
time_spent = noteable.time_spent
if time_spent == :reset
body = "removed time spent"
else
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spent_at = noteable.spent_at
parsed_time = Gitlab::TimeTrackingFormatter.output(time_spent.abs)
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action = time_spent > 0 ? 'added' : 'subtracted'
body = "#{action} #{parsed_time} of time spent"
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body << " at #{spent_at}" if spent_at
end
create_note(NoteSummary.new(noteable, project, author, body, action: 'time_tracking'))
end
# Called when the status of a Noteable is changed
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# status - String status
# source - Mentionable performing the change, or nil
#
# Example Note text:
#
# "merged"
#
# "closed via bc17db76"
#
# Returns the created Note object
def change_status(noteable, project, author, status, source)
body = status.dup
body << " via #{source.gfm_reference(project)}" if source
action = status == 'reopened' ? 'opened' : status
create_note(NoteSummary.new(noteable, project, author, body, action: action))
end
# Called when 'merge when pipeline succeeds' is executed
def merge_when_pipeline_succeeds(noteable, project, author, last_commit)
body = "enabled an automatic merge when the pipeline for #{last_commit.to_reference(project)} succeeds"
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create_note(NoteSummary.new(noteable, project, author, body, action: 'merge'))
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end
# Called when 'merge when pipeline succeeds' is canceled
def cancel_merge_when_pipeline_succeeds(noteable, project, author)
body = 'canceled the automatic merge'
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create_note(NoteSummary.new(noteable, project, author, body, action: 'merge'))
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end
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def handle_merge_request_wip(noteable, project, author)
prefix = noteable.work_in_progress? ? "marked" : "unmarked"
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body = "#{prefix} as a **Work In Progress**"
create_note(NoteSummary.new(noteable, project, author, body, action: 'title'))
end
def add_merge_request_wip_from_commit(noteable, project, author, commit)
body = "marked as a **Work In Progress** from #{commit.to_reference(project)}"
create_note(NoteSummary.new(noteable, project, author, body, action: 'title'))
end
def resolve_all_discussions(merge_request, project, author)
body = "resolved all discussions"
create_note(NoteSummary.new(merge_request, project, author, body, action: 'discussion'))
end
def discussion_continued_in_issue(discussion, project, author, issue)
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body = "created #{issue.to_reference} to continue this discussion"
note_attributes = discussion.reply_attributes.merge(project: project, author: author, note: body)
note = Note.create(note_attributes.merge(system: true))
note.system_note_metadata = SystemNoteMetadata.new(action: 'discussion')
note
end
def diff_discussion_outdated(discussion, project, author, change_position)
merge_request = discussion.noteable
diff_refs = change_position.diff_refs
version_index = merge_request.merge_request_diffs.viewable.count
body = "changed this line in"
if version_params = merge_request.version_params_for(diff_refs)
line_code = change_position.line_code(project.repository)
url = url_helpers.diffs_project_merge_request_url(project, merge_request, version_params.merge(anchor: line_code))
body << " [version #{version_index} of the diff](#{url})"
else
body << " version #{version_index} of the diff"
end
note_attributes = discussion.reply_attributes.merge(project: project, author: author, note: body)
note = Note.create(note_attributes.merge(system: true))
note.system_note_metadata = SystemNoteMetadata.new(action: 'outdated')
note
end
# Called when the title of a Noteable is changed
#
# noteable - Noteable object that responds to `title`
# project - Project owning noteable
# author - User performing the change
# old_title - Previous String title
#
# Example Note text:
#
# "changed title from **Old** to **New**"
#
# Returns the created Note object
def change_title(noteable, project, author, old_title)
new_title = noteable.title.dup
old_diffs, new_diffs = Gitlab::Diff::InlineDiff.new(old_title, new_title).inline_diffs
marked_old_title = Gitlab::Diff::InlineDiffMarkdownMarker.new(old_title).mark(old_diffs, mode: :deletion)
marked_new_title = Gitlab::Diff::InlineDiffMarkdownMarker.new(new_title).mark(new_diffs, mode: :addition)
body = "changed title from **#{marked_old_title}** to **#{marked_new_title}**"
create_note(NoteSummary.new(noteable, project, author, body, action: 'title'))
end
# Called when the description of a Noteable is changed
#
# noteable - Noteable object that responds to `description`
# project - Project owning noteable
# author - User performing the change
#
# Example Note text:
#
# "changed the description"
#
# Returns the created Note object
def change_description(noteable, project, author)
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body = 'changed the description'
create_note(NoteSummary.new(noteable, project, author, body, action: 'description'))
end
# Called when the confidentiality changes
#
# issue - Issue object
# project - Project owning the issue
# author - User performing the change
#
# Example Note text:
#
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# "made the issue confidential"
#
# Returns the created Note object
def change_issue_confidentiality(issue, project, author)
if issue.confidential
body = 'made the issue confidential'
action = 'confidential'
else
body = 'made the issue visible to everyone'
action = 'visible'
end
create_note(NoteSummary.new(issue, project, author, body, action: action))
end
# Called when a branch in Noteable is changed
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# branch_type - 'source' or 'target'
# old_branch - old branch name
# new_branch - new branch nmae
#
# Example Note text:
#
# "changed target branch from `Old` to `New`"
#
# Returns the created Note object
def change_branch(noteable, project, author, branch_type, old_branch, new_branch)
body = "changed #{branch_type} branch from `#{old_branch}` to `#{new_branch}`"
create_note(NoteSummary.new(noteable, project, author, body, action: 'branch'))
end
# Called when a branch in Noteable is added or deleted
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# branch_type - :source or :target
# branch - branch name
# presence - :add or :delete
#
# Example Note text:
#
# "restored target branch `feature`"
#
# Returns the created Note object
def change_branch_presence(noteable, project, author, branch_type, branch, presence)
verb =
if presence == :add
'restored'
else
'deleted'
end
body = "#{verb} #{branch_type} branch `#{branch}`"
create_note(NoteSummary.new(noteable, project, author, body, action: 'branch'))
end
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# Called when a branch is created from the 'new branch' button on a issue
# Example note text:
#
# "created branch `201-issue-branch-button`"
def new_issue_branch(issue, project, author, branch)
link = url_helpers.project_compare_url(project, from: project.default_branch, to: branch)
body = "created branch [`#{branch}`](#{link})"
create_note(NoteSummary.new(issue, project, author, body, action: 'branch'))
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end
# Called when a Mentionable references a Noteable
#
# noteable - Noteable object being referenced
# mentioner - Mentionable object
# author - User performing the reference
#
# Example Note text:
#
# "mentioned in #1"
#
# "mentioned in !2"
#
# "mentioned in 54f7727c"
#
# See cross_reference_note_content.
#
# Returns the created Note object
def cross_reference(noteable, mentioner, author)
return if cross_reference_disallowed?(noteable, mentioner)
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gfm_reference = mentioner.gfm_reference(noteable.project)
body = cross_reference_note_content(gfm_reference)
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if noteable.is_a?(ExternalIssue)
noteable.project.issues_tracker.create_cross_reference_note(noteable, mentioner, author)
else
create_note(NoteSummary.new(noteable, noteable.project, author, body, action: 'cross_reference'))
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end
end
# Check if a cross-reference is disallowed
#
# This method prevents adding a "mentioned in !1" note on every single commit
# in a merge request. Additionally, it prevents the creation of references to
# external issues (which would fail).
#
# noteable - Noteable object being referenced
# mentioner - Mentionable object
#
# Returns Boolean
def cross_reference_disallowed?(noteable, mentioner)
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return true if noteable.is_a?(ExternalIssue) && !noteable.project.jira_tracker_active?
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return false unless mentioner.is_a?(MergeRequest)
return false unless noteable.is_a?(Commit)
mentioner.commits.include?(noteable)
end
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# Check if a cross reference to a noteable from a mentioner already exists
#
# This method is used to prevent multiple notes being created for a mention
# when a issue is updated, for example. The method also calls notes_for_mentioner
# to check if the mentioner is a commit, and return matches only on commit hash
# instead of project + commit, to avoid repeated mentions from forks.
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#
# noteable - Noteable object being referenced
# mentioner - Mentionable object
#
# Returns Boolean
def cross_reference_exists?(noteable, mentioner)
notes = noteable.notes.system
notes_for_mentioner(mentioner, noteable, notes).exists?
end
# Build an Array of lines detailing each commit added in a merge request
#
# new_commits - Array of new Commit objects
#
# Returns an Array of Strings
def new_commit_summary(new_commits)
new_commits.collect do |commit|
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content_tag('li', "#{commit.short_id} - #{commit.title}")
end
end
# Called when the status of a Task has changed
#
# noteable - Noteable object.
# project - Project owning noteable
# author - User performing the change
# new_task - TaskList::Item object.
#
# Example Note text:
#
# "marked the task Whatever as completed."
#
# Returns the created Note object
def change_task_status(noteable, project, author, new_task)
status_label = new_task.complete? ? Taskable::COMPLETED : Taskable::INCOMPLETE
body = "marked the task **#{new_task.source}** as #{status_label}"
create_note(NoteSummary.new(noteable, project, author, body, action: 'task'))
end
# Called when noteable has been moved to another project
#
# direction - symbol, :to or :from
# noteable - Noteable object
# noteable_ref - Referenced noteable
# author - User performing the move
#
# Example Note text:
#
# "moved to some_namespace/project_new#11"
#
# Returns the created Note object
def noteable_moved(noteable, project, noteable_ref, author, direction:)
unless [:to, :from].include?(direction)
raise ArgumentError, "Invalid direction `#{direction}`"
end
cross_reference = noteable_ref.to_reference(project)
body = "moved #{direction} #{cross_reference}"
create_note(NoteSummary.new(noteable, project, author, body, action: 'moved'))
end
# Called when a Noteable has been marked as a duplicate of another Issue
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# canonical_issue - Issue that this is a duplicate of
#
# Example Note text:
#
# "marked this issue as a duplicate of #1234"
#
# "marked this issue as a duplicate of other_project#5678"
#
# Returns the created Note object
def mark_duplicate_issue(noteable, project, author, canonical_issue)
body = "marked this issue as a duplicate of #{canonical_issue.to_reference(project)}"
create_note(NoteSummary.new(noteable, project, author, body, action: 'duplicate'))
end
# Called when a Noteable has been marked as the canonical Issue of a duplicate
#
# noteable - Noteable object
# project - Project owning noteable
# author - User performing the change
# duplicate_issue - Issue that was a duplicate of this
#
# Example Note text:
#
# "marked #1234 as a duplicate of this issue"
#
# "marked other_project#5678 as a duplicate of this issue"
#
# Returns the created Note object
def mark_canonical_issue_of_duplicate(noteable, project, author, duplicate_issue)
body = "marked #{duplicate_issue.to_reference(project)} as a duplicate of this issue"
create_note(NoteSummary.new(noteable, project, author, body, action: 'duplicate'))
end
def discussion_lock(issuable, author)
action = issuable.discussion_locked? ? 'locked' : 'unlocked'
body = "#{action} this #{issuable.class.to_s.titleize.downcase}"
create_note(NoteSummary.new(issuable, issuable.project, author, body, action: action))
end
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def cross_reference?(note_text)
note_text =~ /\A#{cross_reference_note_prefix}/i
end
private
def notes_for_mentioner(mentioner, noteable, notes)
if mentioner.is_a?(Commit)
text = "#{cross_reference_note_prefix}%#{mentioner.to_reference(nil)}"
notes.where('(note LIKE ? OR note LIKE ?)', text, text.capitalize)
else
gfm_reference = mentioner.gfm_reference(noteable.project)
text = cross_reference_note_content(gfm_reference)
notes.where(note: [text, text.capitalize])
end
end
def create_note(note_summary)
note = Note.create(note_summary.note.merge(system: true))
note.system_note_metadata = SystemNoteMetadata.new(note_summary.metadata) if note_summary.metadata?
note
end
def cross_reference_note_prefix
'mentioned in '
end
def cross_reference_note_content(gfm_reference)
"#{cross_reference_note_prefix}#{gfm_reference}"
end
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# Builds a list of existing and new commits according to existing_commits and
# new_commits methods.
# Returns a String wrapped in `ul` and `li` tags.
def commits_list(noteable, new_commits, existing_commits, oldrev)
existing_commit_summary = existing_commit_summary(noteable, existing_commits, oldrev)
new_commit_summary = new_commit_summary(new_commits).join
content_tag('ul', "#{existing_commit_summary}#{new_commit_summary}".html_safe)
end
# Build a single line summarizing existing commits being added in a merge
# request
#
# noteable - MergeRequest object
# existing_commits - Array of existing Commit objects
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# oldrev - Optional String SHA of a previous Commit
#
# Examples:
#
# "* ea0f8418...2f4426b7 - 24 commits from branch `master`"
#
# "* ea0f8418..4188f0ea - 15 commits from branch `fork:master`"
#
# "* ea0f8418 - 1 commit from branch `feature`"
#
# Returns a newline-terminated String
def existing_commit_summary(noteable, existing_commits, oldrev = nil)
return '' if existing_commits.empty?
count = existing_commits.size
commit_ids = if count == 1
existing_commits.first.short_id
else
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if oldrev && !Gitlab::Git.blank_ref?(oldrev)
"#{Commit.truncate_sha(oldrev)}...#{existing_commits.last.short_id}"
else
"#{existing_commits.first.short_id}..#{existing_commits.last.short_id}"
end
end
commits_text = "#{count} commit".pluralize(count)
branch = noteable.target_branch
branch = "#{noteable.target_project_namespace}:#{branch}" if noteable.for_fork?
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branch_name = content_tag('code', branch)
content_tag('li', "#{commit_ids} - #{commits_text} from branch #{branch_name}".html_safe)
end
def url_helpers
@url_helpers ||= Gitlab::Routing.url_helpers
end
def diff_comparison_url(merge_request, project, oldrev)
diff_id = merge_request.merge_request_diff.id
url_helpers.diffs_project_merge_request_url(
project,
merge_request,
diff_id: diff_id,
start_sha: oldrev
)
end
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def content_tag(*args)
ActionController::Base.helpers.content_tag(*args)
end
end