6 files changed, 21 insertions, 27 deletions
diff --git a/danger/changelog/Dangerfile b/danger/changelog/Dangerfile
index f83dc556964..62b41d14bee 100644
--- a/danger/changelog/Dangerfile
+++ b/danger/changelog/Dangerfile
@@ -3,7 +3,6 @@
 
 require 'yaml'
 
-NO_CHANGELOG_LABELS = %w[backstage ci-build meta].freeze
 SEE_DOC = "See [the documentation](https://docs.gitlab.com/ce/development/changelog.html)."
 CREATE_CHANGELOG_MESSAGE = <<~MSG
 You can create one with:
@@ -21,14 +20,6 @@ bin/changelog --ee -m %<mr_iid>s "%<mr_title>s"
 Note: Merge requests with %<labels>s do not trigger this check.
 MSG
 
-def ee_changelog?(changelog_path)
-  changelog_path =~ /unreleased-ee/
-end
-
-def ce_port_changelog?(changelog_path)
-  helper.ee? && !ee_changelog?(changelog_path)
-end
-
 def check_changelog(path)
   yaml = YAML.safe_load(File.read(path))
 
@@ -37,7 +28,7 @@ def check_changelog(path)
 
   if yaml["merge_request"].nil?
     message "Consider setting `merge_request` to #{gitlab.mr_json["iid"]} in #{gitlab.html_link(path)}. #{SEE_DOC}"
-  elsif yaml["merge_request"] != gitlab.mr_json["iid"] && !ce_port_changelog?(path)
+  elsif yaml["merge_request"] != gitlab.mr_json["iid"] && !changelog.ce_port_changelog?(path)
     fail "Merge request ID was not set to #{gitlab.mr_json["iid"]}! #{SEE_DOC}"
   end
 rescue Psych::SyntaxError, Psych::DisallowedClass, Psych::BadAlias
@@ -47,25 +38,18 @@ rescue StandardError => e
   warn "There was a problem trying to check the Changelog. Exception: #{e.name} - #{e.message}"
 end
 
-def presented_no_changelog_labels
-  NO_CHANGELOG_LABELS.map { |label| "~#{label}" }.join(', ')
-end
-
-changelog_needed = (gitlab.mr_labels & NO_CHANGELOG_LABELS).empty?
-changelog_found = git.added_files.find { |path| path =~ %r{\A(ee/)?(changelogs/unreleased)(-ee)?/} }
-
-mr_title = gitlab.mr_json["title"].gsub(/^WIP: */, '')
-
 if git.modified_files.include?("CHANGELOG.md")
   fail "**CHANGELOG.md was edited.** Please remove the additions and create a CHANGELOG entry.\n\n" +
-    format(CREATE_CHANGELOG_MESSAGE, mr_iid: gitlab.mr_json["iid"], mr_title: mr_title, labels: presented_no_changelog_labels)
+    format(CREATE_CHANGELOG_MESSAGE, mr_iid: gitlab.mr_json["iid"], mr_title: changelog.sanitized_mr_title, labels: changelog.presented_no_changelog_labels)
 end
 
-if changelog_needed
+changelog_found = changelog.found
+
+if changelog.needed?
   if changelog_found
     check_changelog(changelog_found)
   else
     message "**[CHANGELOG missing](https://docs.gitlab.com/ce/development/changelog.html)**: If this merge request [doesn't need a CHANGELOG entry](https://docs.gitlab.com/ee/development/changelog.html#what-warrants-a-changelog-entry), feel free to ignore this message.\n\n" +
-      format(CREATE_CHANGELOG_MESSAGE, mr_iid: gitlab.mr_json["iid"], mr_title: mr_title, labels: presented_no_changelog_labels)
+      format(CREATE_CHANGELOG_MESSAGE, mr_iid: gitlab.mr_json["iid"], mr_title: changelog.sanitized_mr_title, labels: changelog.presented_no_changelog_labels)
   end
 end
diff --git a/danger/changes_size/Dangerfile b/danger/changes_size/Dangerfile
index 941afeeba64..2c1d59427af 100644
--- a/danger/changes_size/Dangerfile
+++ b/danger/changes_size/Dangerfile
@@ -1,7 +1,7 @@
 # FIXME: git.info_for_file raises the following error
 # /usr/local/bundle/gems/git-1.4.0/lib/git/lib.rb:956:in `command':  (Danger::DSLError)
 # [!] Invalid `Dangerfile` file:
-# [!] Invalid `Dangerfile` file: git '--git-dir=/builds/gitlab-org/gitlab-foss/.git' '--work-tree=/builds/gitlab-org/gitlab-foss' cat-file '-t' ''  2>&1:fatal: Not a valid object name
+# [!] Invalid `Dangerfile` file: git '--git-dir=/builds/gitlab-org/gitlab/.git' '--work-tree=/builds/gitlab-org/gitlab' cat-file '-t' ''  2>&1:fatal: Not a valid object name
 # This seems to be the same as https://github.com/danger/danger/issues/535.
 
 # locale_files_updated = git.modified_files.select { |path| path.start_with?('locale') }
diff --git a/danger/database/Dangerfile b/danger/database/Dangerfile
index fc6c5130fdc..56624c0b897 100644
--- a/danger/database/Dangerfile
+++ b/danger/database/Dangerfile
@@ -20,7 +20,7 @@ changes are reviewed, take the following steps:
 
 1. Ensure the merge request has ~database and ~"database::review pending" labels.
    If the merge request modifies database files, Danger will do this for you.
-1. Use the [Database changes checklist](https://gitlab.com/gitlab-org/gitlab-foss/blob/master/.gitlab/merge_request_templates/Database%20changes.md)
+1. Use the [Database changes checklist](https://gitlab.com/gitlab-org/gitlab/blob/master/.gitlab/merge_request_templates/Database%20changes.md)
    template or add the appropriate items to the MR description.
 1. Assign and mention the database reviewer suggested by Reviewer Roulette.
 MSG
diff --git a/danger/plugins/changelog.rb b/danger/plugins/changelog.rb
new file mode 100644
index 00000000000..84f399e9e97
--- /dev/null
+++ b/danger/plugins/changelog.rb
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+require_relative '../../lib/gitlab/danger/changelog'
+
+module Danger
+  class Changelog < Plugin
+    # Put the helper code somewhere it can be tested
+    include Gitlab::Danger::Changelog
+  end
+end
diff --git a/danger/prettier/Dangerfile b/danger/prettier/Dangerfile
index 0be75db8baa..ee27aaf9228 100644
--- a/danger/prettier/Dangerfile
+++ b/danger/prettier/Dangerfile
@@ -36,6 +36,6 @@ if GitlabDanger.new(helper.gitlab_helper).ci?
 
     Also consider auto-formatting [on-save].
 
-    [on-save]: https://docs.gitlab.com/ee/development/new_fe_guide/style/prettier.html
+    [on-save]: https://docs.gitlab.com/ee/development/fe_guide/tooling.html#formatting-with-prettier
   MARKDOWN
 end
diff --git a/danger/roulette/Dangerfile b/danger/roulette/Dangerfile
index 42fc3831c14..173cf4e0ea2 100644
--- a/danger/roulette/Dangerfile
+++ b/danger/roulette/Dangerfile
@@ -27,7 +27,7 @@ UNKNOWN_FILES_MESSAGE = <<MARKDOWN
 
 These files couldn't be categorised, so Danger was unable to suggest a reviewer.
 Please consider creating a merge request to
-[add support](https://gitlab.com/gitlab-org/gitlab-foss/blob/master/lib/gitlab/danger/helper.rb)
+[add support](https://gitlab.com/gitlab-org/gitlab/blob/master/lib/gitlab/danger/helper.rb)
 for them.
 MARKDOWN
 
@@ -46,7 +46,7 @@ def spin_for_category(team, project, category, branch_name)
     end
 
   # TODO: take CODEOWNERS into account?
-  # https://gitlab.com/gitlab-org/gitlab-foss/issues/57653
+  # https://gitlab.com/gitlab-org/gitlab/issues/26723
 
   # Make traintainers have triple the chance to be picked as a reviewer
   reviewer = roulette.spin_for_person(reviewers + traintainers + traintainers, random: random)