Turn reference regex constants into methods
`Mentionable::ReferenceRegexes` used to define the following two constants: 1. DEFAULT_PATTERN 2. EXTERNAL_PATTERN These two constants were built using some of the class methods that reside in this same module. In EE we redefine one of these methods by using `prepend` at the start of the `ReferenceRegexes` module. This poses a problem: we can not move the `prepend` to the end of the file, because the constants later on depend on it. To resolve this problem, this commit turns these constants into class methods that memoize their results. This allows EE to redefine the appropriate methods before these two class methods are used, in turn allowing us to move the `prepend` to the end of the file. See https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8198 for more information.
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@ -97,9 +97,9 @@ module Mentionable
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# Allows heavy processing to be skipped
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def matches_cross_reference_regex?
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reference_pattern = if !project || project.default_issues_tracker?
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ReferenceRegexes::DEFAULT_PATTERN
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ReferenceRegexes.default_pattern
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else
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ReferenceRegexes::EXTERNAL_PATTERN
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ReferenceRegexes.external_pattern
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end
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self.class.mentionable_attrs.any? do |attr, _|
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@ -2,6 +2,8 @@
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module Mentionable
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module ReferenceRegexes
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extend Gitlab::Utils::StrongMemoize
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def self.reference_pattern(link_patterns, issue_pattern)
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Regexp.union(link_patterns,
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issue_pattern,
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@ -15,16 +17,20 @@ module Mentionable
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]
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end
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DEFAULT_PATTERN = begin
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issue_pattern = Issue.reference_pattern
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link_patterns = Regexp.union([Issue, Commit, MergeRequest, Epic].map(&:link_reference_pattern).compact)
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reference_pattern(link_patterns, issue_pattern)
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def self.default_pattern
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strong_memoize(:default_pattern) do
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issue_pattern = Issue.reference_pattern
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link_patterns = Regexp.union([Issue, Commit, MergeRequest, Epic].map(&:link_reference_pattern).compact)
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reference_pattern(link_patterns, issue_pattern)
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end
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end
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EXTERNAL_PATTERN = begin
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issue_pattern = IssueTrackerService.reference_pattern
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link_patterns = URI.regexp(%w(http https))
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reference_pattern(link_patterns, issue_pattern)
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def self.external_pattern
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strong_memoize(:external_pattern) do
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issue_pattern = IssueTrackerService.reference_pattern
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link_patterns = URI.regexp(%w(http https))
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reference_pattern(link_patterns, issue_pattern)
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end
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end
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end
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end
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@ -9,7 +9,7 @@ class IssueTrackerService < Service
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# Override this method on services that uses different patterns
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# This pattern does not support cross-project references
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# The other code assumes that this pattern is a superset of all
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# overridden patterns. See ReferenceRegexes::EXTERNAL_PATTERN
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# overridden patterns. See ReferenceRegexes.external_pattern
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def self.reference_pattern(only_long: false)
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if only_long
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/(\b[A-Z][A-Z0-9_]*-)(?<issue>\d+)/
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