method

pre_install_checks

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pre_install_checks() public

Performs various checks before installing the gem such as the install repository is writable and its directories exist, required Ruby and rubygems versions are met and that dependencies are installed.

Version and dependency checks are skipped if this install is forced.

The dependent check will be skipped this install is ignoring dependencies.

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# File lib/rubygems/installer.rb, line 843
  def pre_install_checks
    verify_gem_home options[:unpack]

    # The name and require_paths must be verified first, since it could contain
    # ruby code that would be eval'ed in #ensure_loadable_spec
    verify_spec

    ensure_loadable_spec

    if options[:install_as_default]
      Gem.ensure_default_gem_subdirectories gem_home
    else
      Gem.ensure_gem_subdirectories gem_home
    end

    return true if @force

    ensure_required_ruby_version_met
    ensure_required_rubygems_version_met
    ensure_dependencies_met unless @ignore_dependencies

    true
  end

pre_install_checks

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