Class: Homebrew::FormulaAuditor Private

Inherits:
Object
  • Object
show all
Includes:
FormulaCellarChecks, Utils::Curl
Defined in:
formula_auditor.rb

Overview

This class is part of a private API. This class may only be used in the Homebrew/brew repository. Third parties should avoid using this class if possible, as it may be removed or changed without warning.

Auditor for checking common violations in Formulae.

Constant Summary collapse

PERMITTED_LICENSE_MISMATCHES =

This constant is part of a private API. This constant may only be used in the Homebrew/brew repository. Third parties should avoid using this constant if possible, as it may be removed or changed without warning. 

{
  "AGPL-3.0" => ["AGPL-3.0-only", "AGPL-3.0-or-later"],
  "GPL-2.0"  => ["GPL-2.0-only",  "GPL-2.0-or-later"],
  "GPL-3.0"  => ["GPL-3.0-only",  "GPL-3.0-or-later"],
  "LGPL-2.1" => ["LGPL-2.1-only", "LGPL-2.1-or-later"],
  "LGPL-3.0" => ["LGPL-3.0-only", "LGPL-3.0-or-later"],
}.freeze
INCOMPATIBLE_LICENSES =

This constant is part of a private API. This constant may only be used in the Homebrew/brew repository. Third parties should avoid using this constant if possible, as it may be removed or changed without warning.

The following licenses are non-free/open based on multiple sources (e.g. Debian, Fedora, FSF, OSI, ...)

[
  "Aladdin",    # https://www.gnu.org/licenses/license-list.html#Aladdin
  "CPOL-1.02",  # https://www.gnu.org/licenses/license-list.html#cpol
  "gSOAP-1.3b", # https://salsa.debian.org/ellert/gsoap/-/blob/HEAD/debian/copyright
  "JSON",       # https://wiki.debian.org/DFSGLicenses#JSON_evil_license
  "MS-LPL",     # https://github.com/spdx/license-list-XML/issues/1432#issuecomment-1077680709
  "OPL-1.0",    # https://wiki.debian.org/DFSGLicenses#Open_Publication_License_.28OPL.29_v1.0
].freeze
INCOMPATIBLE_LICENSE_PREFIXES =

This constant is part of a private API. This constant may only be used in the Homebrew/brew repository. Third parties should avoid using this constant if possible, as it may be removed or changed without warning. 

[
  "BUSL",     # https://spdx.org/licenses/BUSL-1.1.html#notes
  "CC-BY-NC", # https://people.debian.org/~bap/dfsg-faq.html#no_commercial
  "Elastic",  # https://www.elastic.co/licensing/elastic-license#Limitations
  "SSPL",     # https://fedoraproject.org/wiki/Licensing/SSPL#License_Notes
].freeze
RELICENSED_FORMULAE_VERSIONS =

This constant is part of a private API. This constant may only be used in the Homebrew/brew repository. Third parties should avoid using this constant if possible, as it may be removed or changed without warning. 

{
  "boundary"           => "0.14",
  "consul"             => "1.17",
  "nomad"              => "1.7",
  "packer"             => "1.10",
  "terraform"          => "1.6",
  "vagrant"            => "2.4",
  "vagrant-completion" => "2.4",
  "vault"              => "1.15",
  "waypoint"           => "0.12",
}.freeze

Constants included from FormulaCellarChecks

FormulaCellarChecks::VALID_LIBRARY_EXTENSIONS

Constants included from OS::Mac::FormulaCellarChecks

OS::Mac::FormulaCellarChecks::MACOS_LIB_EXTENSIONS

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Utils::Curl

clear_path_cache, curl, curl_args, curl_check_http_content, curl_download, curl_executable, curl_headers, curl_http_content_headers_and_checksum, curl_output, curl_path, curl_response_follow_redirections, curl_response_last_location, curl_supports_fail_with_body?, curl_supports_tls13?, curl_version, curl_with_workarounds, http_status_ok?, parse_curl_output, url_protected_by_cloudflare?, url_protected_by_incapsula?

Methods included from SystemCommand::Mixin

#system_command, #system_command!

Methods included from FormulaCellarChecks

#audit_installed, #check_binary_arches, #check_cpuid_instruction, #check_easy_install_pth, #check_elisp_dirname, #check_elisp_root, #check_env_path, #check_generic_executables, #check_infopages, #check_jars, #check_manpages, #check_non_executables, #check_non_libraries, #check_plist, #check_python_packages, #check_python_symlinks, #check_service_command, #check_shim_references, #valid_library_extension?

Methods included from OS::Linux::FormulaCellarChecks

#valid_library_extension?

Methods included from OS::Mac::FormulaCellarChecks

#audit_installed, #check_flat_namespace, #check_linkage, #check_openssl_links, #check_python_framework_links, #check_shadowed_headers, #valid_library_extension?

Constructor Details

#initialize(formula, options = {}) ⇒ FormulaAuditor

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns a new instance of FormulaAuditor.



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# File 'formula_auditor.rb', line 18

def initialize(formula, options = {})
  @formula = formula
  @versioned_formula = formula.versioned_formula?
  @new_formula_inclusive = options[:new_formula]
  @new_formula = options[:new_formula] && !@versioned_formula
  @strict = options[:strict]
  @online = options[:online]
  @git = options[:git]
  @display_cop_names = options[:display_cop_names]
  @only = options[:only]
  @except = options[:except]
  # Accept precomputed style offense results, for efficiency
  @style_offenses = options[:style_offenses]
  # Allow the formula tap to be set as homebrew/core, for testing purposes
  @core_tap = formula.tap&.core_tap? || options[:core_tap]
  @problems = []
  @new_formula_problems = []
  @text = formula.path.open("rb", &:read)
  @specs = %w[stable head].filter_map { |s| formula.send(s) }
  @spdx_license_data = options[:spdx_license_data]
  @spdx_exception_data = options[:spdx_exception_data]
  @tap_audit = options[:tap_audit]
  @previous_committed = {}
  @newest_committed = {}
end

Instance Attribute Details

#formula ⇒ Object (readonly)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 16

def formula
  @formula
end

#new_formula_problems ⇒ Object (readonly)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 16

def new_formula_problems
  @new_formula_problems
end

#problems ⇒ Object (readonly)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 16

def problems
  @problems
end

#text ⇒ Object (readonly)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 16

def text
  @text
end

Class Method Details

.aliases ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 138

def self.aliases
  # core aliases + tap alias names + tap alias full name
  @aliases ||= Formula.aliases + Formula.tap_aliases
end

Instance Method Details

#audit ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 1001

def audit
  only_audits = @only
  except_audits = @except

  methods.map(&:to_s).grep(/^audit_/).each do |audit_method_name|
    name = audit_method_name.delete_prefix("audit_")
    next if only_audits&.exclude?(name)
    next if except_audits&.include?(name)

    send(audit_method_name)
  end
end

#audit_bitbucket_repository ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 701

def audit_bitbucket_repository
  user, repo = get_repo_data(%r{https?://bitbucket\.org/([^/]+)/([^/]+)/?.*}) if @new_formula
  return if user.blank?

  warning = SharedAudits.bitbucket(user, repo)
  return if warning.nil?

  new_formula_problem warning
end

#audit_bottle_spec ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 597

def audit_bottle_spec
  # special case: new versioned formulae should be audited
  return unless @new_formula_inclusive
  return unless @core_tap

  return unless formula.bottle_defined?

  new_formula_problem "New formulae in homebrew/core should not have a `bottle do` block"
end

#audit_conflicts ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 452

def audit_conflicts
  tap = formula.tap
  formula.conflicts.each do |conflict|
    conflicting_formula = Formulary.factory(conflict.name)
    next if tap != conflicting_formula.tap

    problem "Formula should not conflict with itself" if formula == conflicting_formula

    if T.must(tap).formula_renames.key?(conflict.name) || T.must(tap).aliases.include?(conflict.name)
      problem "Formula conflict should be declared using " \
              "canonical name (#{conflicting_formula.name}) instead of '#{conflict.name}'"
    end

    reverse_conflict_found = T.let(false, T::Boolean)
    conflicting_formula.conflicts.each do |reverse_conflict|
      reverse_conflict_formula = Formulary.factory(reverse_conflict.name)
      if T.must(tap).formula_renames.key?(reverse_conflict.name) ||
         T.must(tap).aliases.include?(reverse_conflict.name)
        problem "Formula #{conflicting_formula.name} conflict should be declared using " \
                "canonical name (#{reverse_conflict_formula.name}) instead of '#{reverse_conflict.name}'"
      end

      reverse_conflict_found ||= reverse_conflict_formula == formula
    end
    unless reverse_conflict_found
      problem "Formula #{conflicting_formula.name} should also have a conflict declared with #{formula.name}"
    end
  rescue TapFormulaUnavailableError
    # Don't complain about missing cross-tap conflicts.
    next
  rescue FormulaUnavailableError
    problem "Can't find conflicting formula #{conflict.name.inspect}."
  rescue TapFormulaAmbiguityError
    problem "Ambiguous conflicting formula #{conflict.name.inspect}."
  end
end

#audit_deprecate_disable ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 979

def audit_deprecate_disable
  error = SharedAudits.check_deprecate_disable_reason(formula)
  problem error if error
end

#audit_deps ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 294

def audit_deps
  @specs.each do |spec|
    # Check for things we don't like to depend on.
    # We allow non-Homebrew installs whenever possible.
    spec.declared_deps.each do |dep|
      begin
        dep_f = dep.to_formula
      rescue TapFormulaUnavailableError
        # Don't complain about missing cross-tap dependencies
        next
      rescue FormulaUnavailableError
        problem "Can't find dependency '#{dep.name}'."
        next
      rescue TapFormulaAmbiguityError
        problem "Ambiguous dependency '#{dep.name}'."
        next
      end

      if dep_f.oldnames.include?(dep.name.split("/").last)
        problem "Dependency '#{dep.name}' was renamed; use new name '#{dep_f.name}'."
      end

      if @core_tap &&
         @new_formula &&
         !dep.uses_from_macos? &&
         dep_f.keg_only? &&
         dep_f.keg_only_reason.provided_by_macos? &&
         dep_f.keg_only_reason.applicable? &&
         formula.requirements.none?(LinuxRequirement) &&
         !formula.tap&.audit_exception(:provided_by_macos_depends_on_allowlist, dep.name)
        new_formula_problem(
          "Dependency '#{dep.name}' is provided by macOS; " \
          "please replace 'depends_on' with 'uses_from_macos'.",
        )
      end

      dep.options.each do |opt|
        next if @core_tap
        next if dep_f.option_defined?(opt)
        next if dep_f.requirements.find do |r|
          if r.recommended?
            opt.name == "with-#{r.name}"
          elsif r.optional?
            opt.name == "without-#{r.name}"
          end
        end

        problem "Dependency '#{dep}' does not define option: #{opt.name.inspect}"
      end

      problem "Don't use 'git' as a dependency (it's always available)" if @new_formula && dep.name == "git"

      problem "Dependency '#{dep.name}' is marked as :run. Remove :run; it is a no-op." if dep.tags.include?(:run)

      next unless @core_tap

      if dep_f.tap.nil?
        problem <<~EOS
          Dependency '#{dep.name}' does not exist in any tap.
        EOS
      elsif !dep_f.tap.core_tap?
        problem <<~EOS
          Dependency '#{dep.name}' is not in homebrew/core. Formulae in homebrew/core
          should not have dependencies in external taps.
        EOS
      end

      if dep_f.deprecated? && !formula.deprecated? && !formula.disabled?
        problem <<~EOS
          Dependency '#{dep.name}' is deprecated but has un-deprecated dependents. Either
          un-deprecate '#{dep.name}' or deprecate it and all of its dependents.
        EOS
      end

      if dep_f.disabled? && !formula.disabled?
        problem <<~EOS
          Dependency '#{dep.name}' is disabled but has un-disabled dependents. Either
          un-disable '#{dep.name}' or disable it and all of its dependents.
        EOS
      end

      # we want to allow uses_from_macos for aliases but not bare dependencies.
      # we also allow `pkg-config` for backwards compatibility in external taps.
      if self.class.aliases.include?(dep.name) && !dep.uses_from_macos? && (dep.name != "pkg-config" || @core_tap)
        problem "Dependency '#{dep.name}' is an alias; use the canonical name '#{dep.to_formula.full_name}'."
      end

      if dep.tags.include?(:recommended) || dep.tags.include?(:optional)
        problem "Formulae in homebrew/core should not have optional or recommended dependencies"
      end
    end

    next unless @core_tap

    if spec.requirements.map(&:recommended?).any? || spec.requirements.map(&:optional?).any?
      problem "Formulae in homebrew/core should not have optional or recommended requirements"
    end
  end

  return unless @core_tap
  return if formula.tap&.audit_exception :versioned_dependencies_conflicts_allowlist, formula.name

  # The number of conflicts on Linux is absurd.
  # TODO: remove this and check these there too.
  return if Homebrew::SimulateSystem.simulating_or_running_on_linux?

  # Skip the versioned dependencies conflict audit for *-staging branches.
  # This will allow us to migrate dependents of formulae like Python or OpenSSL
  # gradually over separate PRs which target a *-staging branch. See:
  #   https://github.com/Homebrew/homebrew-core/pull/134260
  ignore_formula_conflict, staging_formula =
    if @tap_audit && (github_event_path = ENV.fetch("GITHUB_EVENT_PATH", nil)).present?
      event_payload = JSON.parse(File.read(github_event_path))
      base_info = event_payload.dig("pull_request", "base").to_h # handle `nil`

      # We need to read the head ref from `GITHUB_EVENT_PATH` because
      # `git branch --show-current` returns the default branch on PR branches.
      staging_branch = base_info["ref"]&.end_with?("-staging")
      homebrew_owned_repo = base_info.dig("repo", "owner", "login") == "Homebrew"
      homebrew_core_pr = base_info.dig("repo", "name") == "homebrew-core"
      # Support staging branches named `formula-staging` or `formula@version-staging`.
      base_formula = base_info["ref"]&.split(/-|@/, 2)&.first

      [staging_branch && homebrew_owned_repo && homebrew_core_pr, base_formula]
    end

  recursive_runtime_formulae = formula.runtime_formula_dependencies(undeclared: false)
  version_hash = {}
  version_conflicts = Set.new
  recursive_runtime_formulae.each do |f|
    name = f.name
    unversioned_name, = name.split("@")
    next if ignore_formula_conflict && unversioned_name == staging_formula
    # Allow use of the full versioned name (e.g. `python@3.99`) or an unversioned alias (`python`).
    next if formula.tap&.audit_exception :versioned_formula_dependent_conflicts_allowlist, name
    next if formula.tap&.audit_exception :versioned_formula_dependent_conflicts_allowlist, unversioned_name

    version_hash[unversioned_name] ||= Set.new
    version_hash[unversioned_name] << name
    next if version_hash[unversioned_name].length < 2

    version_conflicts += version_hash[unversioned_name]
  end

  return if version_conflicts.empty?

  return if formula.disabled?

  return if formula.deprecated? &&
            formula.deprecation_reason != DeprecateDisable::FORMULA_DEPRECATE_DISABLE_REASONS[:versioned_formula]

  problem <<~EOS
    #{formula.full_name} contains conflicting version recursive dependencies:
      #{version_conflicts.to_a.join ", "}
    View these with `brew deps --tree #{formula.full_name}`.
  EOS
end

#audit_eol ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 607

def audit_eol
  return unless @online
  return unless @core_tap

  return if formula.deprecated? || formula.disabled?

  name = if formula.versioned_formula?
    formula.name.split("@").first
  else
    formula.name
  end

  return if formula.tap&.audit_exception :eol_date_blocklist, name

  metadata = SharedAudits.eol_data(name, formula.version.major.to_s)
  metadata ||= SharedAudits.eol_data(name, formula.version.major_minor.to_s)

  return if metadata.blank? || (metadata.dig("result", "isEol") != true)

  eol_from = metadata.dig("result", "eolFrom")
  eol_date = Date.parse(eol_from) if eol_from.present?

  message = "Product is EOL"
  message += " since #{eol_date}" if eol_date.present?
  message += ", see #{Formatter.url("https://endoflife.date/#{name}")}"

  problem message
end

#audit_file ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 55

def audit_file
  if formula.core_formula? && @versioned_formula
    unversioned_name = formula.name.gsub(/@.*$/, "")

    # ignore when an unversioned formula doesn't exist after an explicit rename
    return if formula.tap.formula_renames.key?(unversioned_name)

    # build this ourselves as we want e.g. homebrew/core to be present
    full_name = "#{formula.tap}/#{unversioned_name}"

    unversioned_formula = begin
      Formulary.factory(full_name).path
    rescue FormulaUnavailableError, TapFormulaAmbiguityError
      Pathname.new formula.path.to_s.gsub(/@.*\.rb$/, ".rb")
    end
    unless unversioned_formula.exist?
      unversioned_name = unversioned_formula.basename(".rb")
      problem "#{formula} is versioned but no #{unversioned_name} formula exists"
    end
  elsif formula.stable? &&
        !@versioned_formula &&
        (versioned_formulae = formula.versioned_formulae - [formula]) &&
        versioned_formulae.present?
    versioned_aliases, unversioned_aliases = formula.aliases.partition { |a| /.@\d/.match?(a) }
    _, last_alias_version = versioned_formulae.map(&:name).last.split("@")

    alias_name_major = "#{formula.name}@#{formula.version.major}"
    alias_name_major_minor = "#{formula.name}@#{formula.version.major_minor}"
    alias_name = if last_alias_version.split(".").length == 1
      alias_name_major
    else
      alias_name_major_minor
    end
    valid_main_alias_names = [alias_name_major, alias_name_major_minor].uniq

    # Also accept versioned aliases with names of other aliases, but do not require them.
    valid_other_alias_names = unversioned_aliases.flat_map do |name|
      %W[
        #{name}@#{formula.version.major}
        #{name}@#{formula.version.major_minor}
      ].uniq
    end

    unless @core_tap
      [versioned_aliases, valid_main_alias_names, valid_other_alias_names].each do |array|
        array.map! { |a| "#{formula.tap}/#{a}" }
      end
    end

    valid_versioned_aliases = versioned_aliases & valid_main_alias_names
    invalid_versioned_aliases = versioned_aliases - valid_main_alias_names - valid_other_alias_names

    latest_versioned_formula = versioned_formulae.map(&:name).first

    if valid_versioned_aliases.empty? && alias_name != latest_versioned_formula
      if formula.tap
        problem <<~EOS
          Formula has other versions so create a versioned alias:
            cd #{formula.tap.alias_dir}
            ln -s #{formula.path.to_s.gsub(formula.tap.path, "..")} #{alias_name}
        EOS
      else
        problem "Formula has other versions so create an alias named '#{alias_name}'."
      end
    end

    if invalid_versioned_aliases.present?
      problem <<~EOS
        Formula has invalid versioned aliases:
          #{invalid_versioned_aliases.join("\n  ")}
      EOS
    end
  end

  return if !formula.core_formula? || formula.path == formula.tap.new_formula_path(formula.name)

  problem <<~EOS
    Formula is in wrong path:
      Expected: #{formula.tap.new_formula_path(formula.name)}
        Actual: #{formula.path}
  EOS
end

#audit_gcc_dependency ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 489

def audit_gcc_dependency
  return unless @core_tap
  return unless Homebrew::SimulateSystem.simulating_or_running_on_linux?
  return unless linux_only_gcc_dep?(formula)
  # https://github.com/Homebrew/homebrew-core/pull/171634
  # https://github.com/nghttp2/nghttp2/issues/2194
  return if formula.tap&.audit_exception(:linux_only_gcc_dependency_allowlist, formula.name)

  problem "Formulae in homebrew/core should not have a Linux-only dependency on GCC."
end

#audit_github_repository ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 680

def audit_github_repository
  user, repo = get_repo_data(%r{https?://github\.com/([^/]+)/([^/]+)/?.*}) if @new_formula

  return if user.blank?

  warning = SharedAudits.github(user, repo)
  return if warning.nil?

  new_formula_problem warning
end

#audit_github_repository_archived ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 656

def audit_github_repository_archived
  return if formula.deprecated? || formula.disabled?

  user, repo = get_repo_data(%r{https?://github\.com/([^/]+)/([^/]+)/?.*}) if @online
  return if user.blank?

  metadata = SharedAudits.github_repo_data(user, repo)
  return if metadata.nil?

  problem "GitHub repository is archived" if metadata["archived"]
end

#audit_gitlab_repository ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 691

def audit_gitlab_repository
  user, repo = get_repo_data(%r{https?://gitlab\.com/([^/]+)/([^/]+)/?.*}) if @new_formula
  return if user.blank?

  warning = SharedAudits.gitlab(user, repo)
  return if warning.nil?

  new_formula_problem warning
end

#audit_gitlab_repository_archived ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 668

def audit_gitlab_repository_archived
  return if formula.deprecated? || formula.disabled?

  user, repo = get_repo_data(%r{https?://gitlab\.com/([^/]+)/([^/]+)/?.*}) if @online
  return if user.blank?

  metadata = SharedAudits.gitlab_repo_data(user, repo)
  return if metadata.nil?

  problem "GitLab repository is archived" if metadata["archived"]
end

#audit_glibc ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 515

def audit_glibc
  return unless @core_tap
  return if formula.name != "glibc"
  # Also allow LINUX_GLIBC_NEXT_CI_VERSION for when we're upgrading.
  return if [OS::LINUX_GLIBC_CI_VERSION, OS::LINUX_GLIBC_NEXT_CI_VERSION].include?(formula.version.to_s)

  problem "The glibc version must be #{OS::LINUX_GLIBC_CI_VERSION}, as needed by our CI on Linux. " \
          "The glibc formula is for users who have a system glibc with a lower version, " \
          "which allows them to use our Linux bottles, which were compiled against system glibc on CI."
end

#audit_homepage ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 563

def audit_homepage
  homepage = formula.homepage

  return if homepage.blank?

  return unless @online

  return if formula.tap&.audit_exception :cert_error_allowlist, formula.name, homepage

  return unless DevelopmentTools.curl_handles_most_https_certificates?

  # Skip gnu.org and nongnu.org audit on GitHub runners
  # See issue: https://github.com/Homebrew/homebrew-core/issues/206757
  github_runner = ENV.fetch("GITHUB_ACTIONS", nil) && !ENV["GITHUB_ACTIONS_HOMEBREW_SELF_HOSTED"]
  return if homepage.match?(%r{^https?://www\.(?:non)?gnu\.org/.+}) && github_runner

  use_homebrew_curl = [:stable, :head].any? do |spec_name|
    next false unless (spec = formula.send(spec_name))

    spec.using == :homebrew_curl
  end

  if (http_content_problem = curl_check_http_content(
    homepage,
    SharedAudits::URL_TYPE_HOMEPAGE,
    user_agents:       [:browser, :default],
    check_content:     true,
    strict:            @strict,
    use_homebrew_curl:,
  ))
    problem http_content_problem
  end
end

#audit_license ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 229

def audit_license
  if formula.license.present?
    licenses, exceptions = SPDX.parse_license_expression formula.license

    incompatible_licenses = licenses.select do |license|
      license.to_s.start_with?(*INCOMPATIBLE_LICENSE_PREFIXES) || INCOMPATIBLE_LICENSES.include?(license.to_s)
    end
    if incompatible_licenses.present? && @core_tap
      problem <<~EOS
        Formula #{formula.name} contains incompatible licenses: #{incompatible_licenses}.
        Formulae in homebrew/core must either use a Debian Free Software Guidelines license
        or be released into the public domain: #{Formatter.url("https://docs.brew.sh/License-Guidelines")}
      EOS
    end

    non_standard_licenses = licenses.reject { |license| SPDX.valid_license? license }
    if non_standard_licenses.present?
      problem <<~EOS
        Formula #{formula.name} contains non-standard SPDX licenses: #{non_standard_licenses}.
        For a list of valid licenses check: #{Formatter.url("https://spdx.org/licenses/")}
      EOS
    end

    if @strict || @core_tap
      deprecated_licenses = licenses.select do |license|
        SPDX.deprecated_license? license
      end
      if deprecated_licenses.present?
        problem <<~EOS
          Formula #{formula.name} contains deprecated SPDX licenses: #{deprecated_licenses}.
          You may need to add `-only` or `-or-later` for GNU licenses (e.g. `GPL`, `LGPL`, `AGPL`, `GFDL`).
          For a list of valid licenses check: #{Formatter.url("https://spdx.org/licenses/")}
        EOS
      end
    end

    invalid_exceptions = exceptions.reject { |exception| SPDX.valid_license_exception? exception }
    if invalid_exceptions.present?
      problem <<~EOS
        Formula #{formula.name} contains invalid or deprecated SPDX license exceptions: #{invalid_exceptions}.
        For a list of valid license exceptions check:
          #{Formatter.url("https://spdx.org/licenses/exceptions-index.html")}
      EOS
    end

    return unless @online

    user, repo = get_repo_data(%r{https?://github\.com/([^/]+)/([^/]+)/?.*})
    return if user.blank?

    tag = SharedAudits.github_tag_from_url(formula.stable.url)
    tag ||= formula.stable.specs[:tag]
    github_license = GitHub.get_repo_license(user, repo, ref: tag)
    return unless github_license
    return if (licenses + ["NOASSERTION"]).include?(github_license)
    return if PERMITTED_LICENSE_MISMATCHES[github_license]&.any? { |license| licenses.include? license }
    return if formula.tap&.audit_exception :permitted_formula_license_mismatches, formula.name

    problem "Formula license #{licenses} does not match GitHub license #{Array(github_license)}."

  elsif @core_tap && !formula.disabled?
    problem "Formulae in homebrew/core must specify a license."
  end
end

#audit_name ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 164

def audit_name
  name = formula.name

  name_auditor = Homebrew::FormulaNameCaskTokenAuditor.new(name)
  if (errors = name_auditor.errors).any?
    problem "Formula name '#{name}' must not contain #{errors.to_sentence(two_words_connector: " or ",
                                                                          last_word_connector: " or ")}."
  end

  return unless @core_tap

  if CoreCaskTap.instance.cask_tokens.include?(name)
    problem "Formula name conflicts with an existing Homebrew/cask cask's token."
    return
  end

  return unless @strict

  problem "'#{name}' is not allowed in homebrew/core." if MissingFormula.disallowed_reason(name)

  if Formula.aliases.include? name
    problem "Formula name conflicts with existing aliases in homebrew/core."
    return
  end

  if (oldname = CoreTap.instance.formula_renames[name])
    problem "'#{name}' is reserved as the old name of #{oldname} in homebrew/core."
    return
  end

  if CoreCaskTap.instance.cask_tokens.include?(name)
    problem "Formula name conflicts with an existing Homebrew/cask cask's token."
    return
  end

  return if formula.core_formula?
  return unless Formula.core_names.include?(name)

  problem "Formula name conflicts with an existing formula in homebrew/core."
end

#audit_no_autobump ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 984

def audit_no_autobump
  return if formula.autobump?

  return unless @new_formula_inclusive

  error = SharedAudits.no_autobump_new_package_message(formula.no_autobump_message)
  new_formula_problem error if error
end

#audit_postgresql ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 500

def audit_postgresql
  return if formula.name != "postgresql"
  return unless @core_tap

  major_version = formula.version.major.to_i
  previous_major_version = major_version - 1
  previous_formula_name = "postgresql@#{previous_major_version}"
  begin
    Formula[previous_formula_name]
  rescue FormulaUnavailableError
    problem "Versioned #{previous_formula_name} in homebrew/core must be created for " \
            "`brew postgresql-upgrade-database` and `pg_upgrade` to work."
  end
end

#audit_prefix_has_contents ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 968

def audit_prefix_has_contents
  return unless formula.prefix.directory?
  return unless Keg.new(formula.prefix).empty_installation?

  problem <<~EOS
    The installation seems to be empty. Please ensure the prefix
    is set correctly and expected files are installed.
    The prefix configure/make argument may be case-sensitive.
  EOS
end

#audit_relicensed_formulae ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 538

def audit_relicensed_formulae
  return unless RELICENSED_FORMULAE_VERSIONS.key? formula.name
  return unless @core_tap

  relicensed_version = Version.new(RELICENSED_FORMULAE_VERSIONS[formula.name])
  return if formula.version < relicensed_version

  problem "#{formula.name} was relicensed to a non-open-source license from version #{relicensed_version}. " \
          "It must not be upgraded to version #{relicensed_version} or newer."
end

#audit_reverse_migration ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 955

def audit_reverse_migration
  # Only enforce for new formula being re-added to core
  return unless @strict
  return unless @core_tap
  return unless formula.tap.tap_migrations.key?(formula.name)

  problem <<~EOS
    #{formula.name} seems to be listed in tap_migrations.json!
    Please remove #{formula.name} from present tap & tap_migrations.json
    before submitting it to Homebrew/homebrew-#{formula.tap.repository}.
  EOS
end

#audit_revision ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 863

def audit_revision
  new_formula_problem("New formulae should not define a revision.") if @new_formula && !formula.revision.zero?

  return unless @git
  return unless formula.tap # skip formula not from core or any taps
  return unless formula.tap.git? # git log is required
  return if formula.stable.blank?

  current_version = formula.stable.version
  current_revision = formula.revision

  previous_committed, newest_committed = committed_version_info

  if (previous_committed[:version] != newest_committed[:version] ||
     current_version != newest_committed[:version]) &&
     !current_revision.zero? &&
     current_revision == newest_committed[:revision] &&
     current_revision == previous_committed[:revision]
    problem "`revision #{current_revision}` should be removed"
  elsif current_version == previous_committed[:version] &&
        !previous_committed[:revision].nil? &&
        current_revision < previous_committed[:revision]
    problem "`revision` should not decrease (from #{previous_committed[:revision]} to #{current_revision})"
  elsif newest_committed[:revision] &&
        current_revision > (newest_committed[:revision] + 1)
    problem "`revision` should only increment by 1"
  end
end

#audit_specs ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 725

def audit_specs
  problem "HEAD-only (no stable download)" if head_only?(formula)

  %w[Stable HEAD].each do |name|
    spec_name = name.downcase.to_sym
    next unless (spec = formula.send(spec_name))

    except = @except.to_a
    if spec_name == :head &&
       formula.tap&.audit_exception(:head_non_default_branch_allowlist, formula.name, spec.specs[:branch])
      except << "head_branch"
    end

    ra = ResourceAuditor.new(
      spec, spec_name,
      online: @online, strict: @strict, only: @only, except:,
      use_homebrew_curl: spec.using == :homebrew_curl
    ).audit
    ra.problems.each do |message|
      problem "#{name}: #{message}"
    end

    spec.resources.each_value do |resource|
      problem "Resource name should be different from the formula name" if resource.name == formula.name

      ra = ResourceAuditor.new(
        resource, spec_name,
        online: @online, strict: @strict, only: @only, except: @except,
        use_homebrew_curl: resource.using == :homebrew_curl
      ).audit
      ra.problems.each do |message|
        problem "#{name} resource #{resource.name.inspect}: #{message}"
      end
    end

    next if spec.patches.empty?
    next if !@new_formula || !@core_tap

    new_formula_problem(
      "Formulae should not require patches to build. " \
      "Patches should be submitted and accepted upstream first.",
    )
  end

  return unless @core_tap

  if formula.head && @versioned_formula &&
     !formula.tap&.audit_exception(:versioned_head_spec_allowlist, formula.name)
    problem "Versioned formulae should not have a `head` spec"
  end

  stable = formula.stable
  return unless stable
  return unless stable.url

  version = stable.version
  problem "Stable: version (#{version}) is set to a string without a digit" unless /\d/.match?(version.to_s)

  stable_version_string = version.to_s
  if stable_version_string.start_with?("HEAD")
    problem "Stable: non-HEAD version (#{stable_version_string}) should not begin with `HEAD`"
  end

  stable_url_version = Version.parse(stable.url)
  stable_url_minor_version = stable_url_version.minor.to_i

  formula_suffix = stable.version.patch.to_i
  throttled_rate = formula.livecheck.throttle
  if throttled_rate && formula_suffix.modulo(throttled_rate).nonzero?
    problem "should only be updated every #{throttled_rate} releases on multiples of #{throttled_rate}"
  end

  case (url = stable.url)
  when /[\d._-](alpha|beta|rc\d)/
    matched = Regexp.last_match(1)
    version_prefix = stable_version_string.sub(/\d+$/, "")
    return if formula.tap&.audit_exception :unstable_allowlist, formula.name, version_prefix
    return if formula.tap&.audit_exception :unstable_devel_allowlist, formula.name, version_prefix

    problem "Stable: version URLs should not contain `#{matched}`"
  when %r{download\.gnome\.org/sources}, %r{ftp\.gnome\.org/pub/GNOME/sources}i
    version_prefix = stable.version.major_minor
    return if formula.tap&.audit_exception :gnome_devel_allowlist, formula.name, version_prefix
    return if stable_url_version < Version.new("1.0")
    # All minor versions are stable in the new GNOME version scheme (which starts at version 40.0)
    # https://discourse.gnome.org/t/new-gnome-versioning-scheme/4235
    return if stable_url_version >= Version.new("40.0")
    return if stable_url_minor_version.even?

    problem "Stable: version (#{stable.version}) is a development release"
  when %r{isc.org/isc/bind\d*/}i
    return if stable_url_minor_version.even?

    problem "Stable: version (#{stable.version}) is a development release"

  when %r{https?://gitlab\.com/([\w-]+)/([\w-]+)}
    owner = T.must(Regexp.last_match(1))
    repo = T.must(Regexp.last_match(2))

    tag = SharedAudits.gitlab_tag_from_url(url)
    tag ||= stable.specs[:tag]
    tag ||= stable.version.to_s

    if @online
      error = SharedAudits.gitlab_release(owner, repo, tag, formula:)
      problem error if error
    end
  when %r{^https://github.com/([\w-]+)/([\w-]+)}
    owner = T.must(Regexp.last_match(1))
    repo = T.must(Regexp.last_match(2))
    tag = SharedAudits.github_tag_from_url(url)
    tag ||= formula.stable.specs[:tag]

    if @online && !tag.nil?
      error = SharedAudits.github_release(owner, repo, tag, formula:)
      problem error if error
    end
  end
end

#audit_stable_version ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 845

def audit_stable_version
  return unless @git
  return unless formula.tap # skip formula not from core or any taps
  return unless formula.tap.git? # git log is required
  return if formula.stable.blank?

  current_version = formula.stable.version
  current_version_scheme = formula.version_scheme

  previous_committed, newest_committed = committed_version_info

  if !newest_committed[:version].nil? &&
     current_version < newest_committed[:version] &&
     current_version_scheme == previous_committed[:version_scheme]
    problem "Stable: version should not decrease (from #{newest_committed[:version]} to #{current_version})"
  end
end

#audit_style ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 44

def audit_style
  return unless @style_offenses

  @style_offenses.each do |offense|
    cop_name = "#{offense.cop_name}: " if @display_cop_names
    message = "#{cop_name}#{offense.message}"

    problem message, location: offense.location, corrected: offense.corrected?
  end
end

#audit_synced_versions_formulae ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 143

def audit_synced_versions_formulae
  return unless formula.synced_with_other_formulae?

  name = formula.name
  version = formula.version

  formula.tap.synced_versions_formulae.each do |synced_version_formulae|
    next unless synced_version_formulae.include?(name)

    synced_version_formulae.each do |synced_formula|
      next if synced_formula == name

      if (synced_version = Formulary.factory(synced_formula).version) != version
        problem "Version of #{synced_formula} (#{synced_version}) should match version of #{name} (#{version})"
      end
    end

    break
  end
end

#audit_text ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 936

def audit_text
  bin_names = Set.new
  bin_names << formula.name
  bin_names += formula.aliases
  [formula.bin, formula.sbin].each do |dir|
    next unless dir.exist?

    bin_names += dir.children.map { |child| child.basename.to_s }
  end
  shell_commands = ["system", "shell_output", "pipe_output"]
  bin_names.each do |name|
    shell_commands.each do |cmd|
      if text.to_s.match?(/test do.*#{cmd}[(\s]+['"]#{Regexp.escape(name)}[\s'"]/m)
        problem %Q(Fully scope test `#{cmd}` calls, e.g.: #{cmd} "\#{bin}/#{name}")
      end
    end
  end
end

#audit_unconfirmed_checksum_change ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 912

def audit_unconfirmed_checksum_change
  return unless @git
  return unless formula.tap # skip formula not from core or any taps
  return unless formula.tap.git? # git log is required
  return if formula.stable.blank?

  current_version = formula.stable.version
  current_checksum = formula.stable.checksum
  current_url = formula.stable.url

  _, newest_committed = committed_version_info

  if current_version == newest_committed[:version] &&
     current_url == newest_committed[:url] &&
     current_checksum != newest_committed[:checksum] &&
     current_checksum.present? && newest_committed[:checksum].present?
    problem(
      "stable sha256 changed without the url/version also changing; " \
      "please create an issue upstream to rule out malicious " \
      "circumstances and to find out why the file changed.",
    )
  end
end

#audit_version_scheme ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 892

def audit_version_scheme
  return unless @git
  return unless formula.tap # skip formula not from core or any taps
  return unless formula.tap.git? # git log is required
  return if formula.stable.blank?

  current_version_scheme = formula.version_scheme

  previous_committed, = committed_version_info

  return if previous_committed[:version_scheme].nil?

  if current_version_scheme < previous_committed[:version_scheme]
    problem "`version_scheme` should not decrease (from #{previous_committed[:version_scheme]} " \
            "to #{current_version_scheme})"
  elsif current_version_scheme > (previous_committed[:version_scheme] + 1)
    problem "`version_scheme` should only increment by 1"
  end
end

#audit_versioned_keg_only ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 549

def audit_versioned_keg_only
  return unless @versioned_formula
  return unless @core_tap

  if formula.keg_only?
    return if formula.keg_only_reason.versioned_formula?
    return if formula.name.start_with?("openssl", "libressl") && formula.keg_only_reason.by_macos?
  end

  return if formula.tap&.audit_exception :versioned_keg_only_allowlist, formula.name

  problem "Versioned formulae in homebrew/core should use `keg_only :versioned_formula`"
end

#audit_wayback_url ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 636

def audit_wayback_url
  return unless @core_tap
  return if formula.deprecated? || formula.disabled?

  regex = %r{^https?://web\.archive\.org}
  problem_prefix = "Formula with a Internet Archive Wayback Machine"

  problem "#{problem_prefix} `url` should be deprecated with `:repo_removed`" if regex.match?(formula.stable.url)

  if regex.match?(formula.homepage)
    problem "#{problem_prefix} `homepage` should find an alternative `homepage` or be deprecated."
  end

  return unless formula.head

  return unless regex.match?(formula.head.url)

  problem "Remove Internet Archive Wayback Machine `head` URL"
end

#get_repo_data(regex) ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 711

def get_repo_data(regex)
  return unless @core_tap
  return unless @online

  _, user, repo = *regex.match(formula.stable.url) if formula.stable
  _, user, repo = *regex.match(formula.homepage) unless user
  _, user, repo = *regex.match(formula.head.url) if !user && formula.head
  return if !user || !repo

  repo.delete_suffix!(".git")

  [user, repo]
end

#problem_if_output(output) ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 997

def problem_if_output(output)
  problem(output) if output
end

#quote_dep(dep) ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'formula_auditor.rb', line 993

def quote_dep(dep)
  dep.is_a?(Symbol) ? dep.inspect : "'#{dep}'"
end