268 lines
7.8 KiB
Ruby
268 lines
7.8 KiB
Ruby
module Gitlab
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module PathRegex
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extend self
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# All routes that appear on the top level must be listed here.
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# This will make sure that groups cannot be created with these names
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# as these routes would be masked by the paths already in place.
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#
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# Example:
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# /api/api-project
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#
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# the path `api` shouldn't be allowed because it would be masked by `api/*`
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#
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TOP_LEVEL_ROUTES = %w[
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-
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.well-known
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404.html
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422.html
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500.html
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502.html
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503.html
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abuse_reports
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admin
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api
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apple-touch-icon-precomposed.png
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apple-touch-icon.png
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assets
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autocomplete
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boards
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ci
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dashboard
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deploy.html
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explore
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favicon.ico
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files
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google_api
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groups
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health_check
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help
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import
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invites
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jwt
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koding
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notification_settings
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oauth
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profile
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projects
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public
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robots.txt
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s
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search
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sent_notifications
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slash-command-logo.png
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snippets
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u
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unicorn_test
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unsubscribes
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uploads
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users
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].freeze
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# This list should contain all words following `/*namespace_id/:project_id` in
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# routes that contain a second wildcard.
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#
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# Example:
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# /*namespace_id/:project_id/badges/*ref/build
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#
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# If `badges` was allowed as a project/group name, we would not be able to access the
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# `badges` route for those projects:
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#
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# Consider a namespace with path `foo/bar` and a project called `badges`.
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# The route to the build badge would then be `/foo/bar/badges/badges/master/build.svg`
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#
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# When accessing this path the route would be matched to the `badges` path
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# with the following params:
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# - namespace_id: `foo`
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# - project_id: `bar`
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# - ref: `badges/master`
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#
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# Failing to find the project, this would result in a 404.
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#
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# By rejecting `badges` the router can _count_ on the fact that `badges` will
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# be preceded by the `namespace/project`.
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PROJECT_WILDCARD_ROUTES = %w[
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-
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badges
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blame
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blob
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builds
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commits
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create
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create_dir
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edit
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environments/folders
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files
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find_file
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gitlab-lfs/objects
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info/lfs/objects
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new
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preview
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raw
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refs
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tree
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update
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wikis
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].freeze
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# These are all the paths that follow `/groups/*id/ or `/groups/*group_id`
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# We need to reject these because we have a `/groups/*id` page that is the same
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# as the `/*id`.
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#
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# If we would allow a subgroup to be created with the name `activity` then
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# this group would not be accessible through `/groups/parent/activity` since
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# this would map to the activity-page of its parent.
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GROUP_ROUTES = %w[
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-
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activity
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analytics
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audit_events
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avatar
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edit
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group_members
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hooks
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issues
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labels
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ldap
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ldap_group_links
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merge_requests
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milestones
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notification_setting
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pipeline_quota
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projects
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].freeze
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ILLEGAL_PROJECT_PATH_WORDS = PROJECT_WILDCARD_ROUTES
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ILLEGAL_GROUP_PATH_WORDS = (PROJECT_WILDCARD_ROUTES | GROUP_ROUTES).freeze
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# The namespace regex is used in JavaScript to validate usernames in the "Register" form. However, Javascript
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# does not support the negative lookbehind assertion (?<!) that disallows usernames ending in `.git` and `.atom`.
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# Since this is a non-trivial problem to solve in Javascript (heavily complicate the regex, modify view code to
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# allow non-regex validations, etc), `NAMESPACE_FORMAT_REGEX_JS` serves as a Javascript-compatible version of
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# `NAMESPACE_FORMAT_REGEX`, with the negative lookbehind assertion removed. This means that the client-side validation
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# will pass for usernames ending in `.atom` and `.git`, but will be caught by the server-side validation.
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PATH_REGEX_STR = '[a-zA-Z0-9_\.][a-zA-Z0-9_\-\.]*'.freeze
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NAMESPACE_FORMAT_REGEX_JS = PATH_REGEX_STR + '[a-zA-Z0-9_\-]|[a-zA-Z0-9_]'.freeze
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NO_SUFFIX_REGEX = /(?<!\.git|\.atom)/.freeze
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NAMESPACE_FORMAT_REGEX = /(?:#{NAMESPACE_FORMAT_REGEX_JS})#{NO_SUFFIX_REGEX}/.freeze
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PROJECT_PATH_FORMAT_REGEX = /(?:#{PATH_REGEX_STR})#{NO_SUFFIX_REGEX}/.freeze
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FULL_NAMESPACE_FORMAT_REGEX = %r{(#{NAMESPACE_FORMAT_REGEX}/)*#{NAMESPACE_FORMAT_REGEX}}.freeze
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def root_namespace_route_regex
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@root_namespace_route_regex ||= begin
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illegal_words = Regexp.new(Regexp.union(TOP_LEVEL_ROUTES).source, Regexp::IGNORECASE)
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single_line_regexp %r{
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(?!(#{illegal_words})/)
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#{NAMESPACE_FORMAT_REGEX}
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}x
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end
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end
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def full_namespace_route_regex
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@full_namespace_route_regex ||= begin
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illegal_words = Regexp.new(Regexp.union(ILLEGAL_GROUP_PATH_WORDS).source, Regexp::IGNORECASE)
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single_line_regexp %r{
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#{root_namespace_route_regex}
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(?:
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/
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(?!#{illegal_words}/)
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#{NAMESPACE_FORMAT_REGEX}
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)*
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}x
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end
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end
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def project_route_regex
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@project_route_regex ||= begin
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illegal_words = Regexp.new(Regexp.union(ILLEGAL_PROJECT_PATH_WORDS).source, Regexp::IGNORECASE)
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single_line_regexp %r{
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(?!(#{illegal_words})/)
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#{PROJECT_PATH_FORMAT_REGEX}
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}x
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end
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end
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def project_git_route_regex
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@project_git_route_regex ||= /#{project_route_regex}\.git/.freeze
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end
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def root_namespace_path_regex
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@root_namespace_path_regex ||= %r{\A#{root_namespace_route_regex}/\z}
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end
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def full_namespace_path_regex
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@full_namespace_path_regex ||= %r{\A#{full_namespace_route_regex}/\z}
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end
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def project_path_regex
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@project_path_regex ||= %r{\A#{project_route_regex}/\z}
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end
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def full_project_path_regex
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@full_project_path_regex ||= %r{\A#{full_namespace_route_regex}/#{project_route_regex}/\z}
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end
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def full_namespace_format_regex
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@namespace_format_regex ||= /A#{FULL_NAMESPACE_FORMAT_REGEX}\z/.freeze
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end
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def namespace_format_regex
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@namespace_format_regex ||= /\A#{NAMESPACE_FORMAT_REGEX}\z/.freeze
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end
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def namespace_format_message
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"can contain only letters, digits, '_', '-' and '.'. " \
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"Cannot start with '-' or end in '.', '.git' or '.atom'." \
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end
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def project_path_format_regex
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@project_path_format_regex ||= /\A#{PROJECT_PATH_FORMAT_REGEX}\z/.freeze
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end
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def project_path_format_message
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"can contain only letters, digits, '_', '-' and '.'. " \
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"Cannot start with '-', end in '.git' or end in '.atom'" \
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end
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def archive_formats_regex
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# |zip|tar| tar.gz | tar.bz2 |
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@archive_formats_regex ||= /(zip|tar|tar\.gz|tgz|gz|tar\.bz2|tbz|tbz2|tb2|bz2)/.freeze
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end
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def git_reference_regex
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# Valid git ref regex, see:
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# https://www.kernel.org/pub/software/scm/git/docs/git-check-ref-format.html
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@git_reference_regex ||= single_line_regexp %r{
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(?!
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(?# doesn't begins with)
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\/| (?# rule #6)
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(?# doesn't contain)
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.*(?:
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[\/.]\.| (?# rule #1,3)
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\/\/| (?# rule #6)
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@\{| (?# rule #8)
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\\ (?# rule #9)
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)
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)
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[^\000-\040\177~^:?*\[]+ (?# rule #4-5)
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(?# doesn't end with)
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(?<!\.lock) (?# rule #1)
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(?<![\/.]) (?# rule #6-7)
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}x
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end
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private
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def single_line_regexp(regex)
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# Turns a multiline extended regexp into a single line one,
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# beacuse `rake routes` breaks on multiline regexes.
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Regexp.new(regex.source.gsub(/\(\?#.+?\)/, '').gsub(/\s*/, ''), regex.options ^ Regexp::EXTENDED).freeze
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end
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end
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end
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