Class: PuppetLint::Data

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/puppet-lint/data.rb

Overview

Public: A singleton class storing all the information about the manifest being analysed.

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.filename ⇒ Object (readonly)

Internal: Get/Set the full expanded path to the manifest file being checked.



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# File 'lib/puppet-lint/data.rb', line 12

def filename
  @filename
end

.fullpath ⇒ Object (readonly)

Internal: Get/Set the full expanded path to the manifest file being checked.



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# File 'lib/puppet-lint/data.rb', line 12

def fullpath
  @fullpath
end

.manifest_lines ⇒ Object

Internal: Get/Set the raw manifest data, split by n.



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# File 'lib/puppet-lint/data.rb', line 15

def manifest_lines
  @manifest_lines
end

.path ⇒ Object

Internal: Get/Set the full expanded path to the manifest file being checked.



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# File 'lib/puppet-lint/data.rb', line 12

def path
  @path
end

Class Method Details

.array_indexes ⇒ Object

Internal: Calculate the positions of all array values within ‘tokens` Array.

Returns an Array of Hashes, each containing:

:start  - An Integer position in the `tokens` Array pointing to the
          first Token of an array value
:end    - An Integer position in the `tokens` Array pointing to the last
          Token of an array value
:tokens - An Array consisting of all the Token objects that make up the
          array value.



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# File 'lib/puppet-lint/data.rb', line 402

def array_indexes
  @array_indexes ||= begin
    arrays = []
    tokens.each_with_index do |token, token_idx|
      next unless token.type == :LBRACK

      real_idx = 0
      tokens[token_idx + 1..-1].each_with_index do |cur_token, cur_token_idx|
        real_idx = token_idx + 1 + cur_token_idx
        break if cur_token.type == :RBRACK
      end

      # Ignore resource references
      next if token.prev_code_token &&
              token.prev_code_token.type == :CLASSREF

      arrays << {
        start: token_idx,
        end: real_idx,
        tokens: tokens[token_idx..real_idx],
      }
    end
    arrays
  end
end

.class_indexes ⇒ Object

Internal: Calculate the positions of all class definitions within the ‘tokens` Array.

Returns an Array of Hashes, each containing:

:start  - An Integer position in the `tokens` Array pointing to the
          first Token of a class definition.
:end    - An Integer position in the `tokens` Array pointing to the last
          Token of a class definition.
:tokens - An Array consisting of all the Token objects that make up the
          class definition.



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# File 'lib/puppet-lint/data.rb', line 258

def class_indexes
  @class_indexes ||= definition_indexes(:CLASS)
end

.classref?(token) ⇒ Boolean

Internal: Determine if the given token contains a CLASSREF in the token chain..

Returns a Boolean.

Returns:

  • (Boolean) 


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# File 'lib/puppet-lint/data.rb', line 162

def classref?(token)
  current_token = token
  while (current_token = current_token.prev_code_token)
    return true if current_token.type == :CLASSREF
    return false if current_token.type == :NAME
  end
end

.defaults_indexes ⇒ Object

Internal: Calculate the positions of all defaults declarations within ‘tokens` Array.

Returns an Array of Hashes, each containing:

:start  - An Integer position in the `tokens` Array pointing to the
          first Token of the defaults declaration
:end    - An Integer position in the `tokens` Array pointing to the last
          Token of the defaults declaration
:tokens - An Array consisting of all the Token objects that make up the
          defaults declaration.



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# File 'lib/puppet-lint/data.rb', line 476

def defaults_indexes
  @defaults_indexes ||= begin
    defaults = []
    tokens.each_with_index do |token, token_idx|
      next unless token.type == :CLASSREF
      next unless token.next_code_token && token.next_code_token.type == :LBRACE

      real_idx = 0

      tokens[token_idx + 1..-1].each_with_index do |cur_token, cur_token_idx|
        real_idx = token_idx + 1 + cur_token_idx
        break if cur_token.type == :RBRACE
      end

      defaults << {
        start: token_idx,
        end: real_idx,
        tokens: tokens[token_idx..real_idx],
      }
    end
    defaults
  end
end

.defined_type_indexes ⇒ Object

Internal: Calculate the positions of all defined type definitions within the ‘tokens` Array.

Returns an Array of Hashes, each containing:

:start  - An Integer position in the `tokens` Array pointing to the
          first Token of a defined type definition.
:end    - An Integer position in the `tokens` Array pointing to the last
          Token of a defined type definition.
:tokens - An Array consisting of all the Token objects that make up the
          defined type.



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# File 'lib/puppet-lint/data.rb', line 272

def defined_type_indexes
  @defined_type_indexes ||= definition_indexes(:DEFINE)
end

.definition_indexes(type) ⇒ Object

Internal: Calculate the positions of all the specified defintion types within the ‘tokens` Array.

Returns an Array of Hashes, each containing:

:start  - An Integer position in the `tokens` Array pointing to the
          first Token of a definition.
:end    - An Integer position in the `tokens` Array pointing to the last
          Token of a definition.
:tokens - An Array consisting of all the Token objects that make up the
          definition.



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# File 'lib/puppet-lint/data.rb', line 300

def definition_indexes(type)
  result = []
  tokens.each_with_index do |token, i|
    next unless token.type == type

    brace_depth = 0
    paren_depth = 0
    in_params = false
    inherited_class = nil
    tokens[i + 1..-1].each_with_index do |definition_token, j|
      case definition_token.type
      when :INHERITS
        inherited_class = definition_token.next_code_token
      when :LPAREN
        in_params = true if paren_depth.zero?
        paren_depth += 1
      when :RPAREN
        in_params = false if paren_depth == 1
        paren_depth -= 1
      when :LBRACE
        brace_depth += 1
      when :RBRACE
        brace_depth -= 1
        if brace_depth.zero? && !in_params
          if token.next_code_token.type != :LBRACE
            result << {
              start: i,
              end: i + j + 1,
              tokens: tokens[i..(i + j + 1)],
              param_tokens: param_tokens(tokens[i..(i + j + 1)]),
              type: type,
              name_token: token.next_code_token,
              inherited_token: inherited_class,
            }
            break
          end
        end
      end
    end
  end
  result
end

.delete(token) ⇒ Object

Public: Removes a token



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# File 'lib/puppet-lint/data.rb', line 103

def delete(token)
  token.next_token.prev_token = token.prev_token unless token.next_token.nil?
  token.prev_token.next_token = token.next_token unless token.prev_token.nil?
  unless formatting_tokens.include?(token.type)
    token.prev_code_token.next_code_token = token.next_code_token unless token.prev_code_token.nil?
    token.next_code_token.prev_code_token = token.prev_code_token unless token.next_code_token.nil?
  end

  tokens.delete(token)
end

.find_resource_param_tokens(resource_tokens) ⇒ Object

Internal: Find all the Token objects representing the parameter names in a resource definition.

resource_tokens - An Array of Token objects that comprise the resource

definition.

Returns an Array of Token objects.



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# File 'lib/puppet-lint/data.rb', line 230

def find_resource_param_tokens(resource_tokens)
  param_tokens = []

  iter_token = resource_tokens.first.prev_token

  until iter_token.nil?
    iter_token = iter_token.next_token_of(:NAME)

    break unless resource_tokens.include?(iter_token)

    if iter_token && iter_token.next_code_token.type == :FARROW
      param_tokens << iter_token
    end
  end

  param_tokens
end

.find_resource_type_token(index) ⇒ Object

Internal: Find the Token representing the type of a resource definition.

index - The Integer pointing to the start of the resource in the ‘tokens`

array.

Returns a Token object.

Raises:



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# File 'lib/puppet-lint/data.rb', line 213

def find_resource_type_token(index)
  lbrace_idx = tokens[0..index].rindex do |token|
    token.type == :LBRACE && token.prev_code_token.type != :QMARK
  end

  raise PuppetLint::SyntaxError, tokens[index] if lbrace_idx.nil?

  tokens[lbrace_idx].prev_code_token
end

.formatting_tokens ⇒ Object

Internal: Retrieves a list of token types that are considered to be formatting tokens (whitespace, newlines, etc).

Returns an Array of Symbols.



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# File 'lib/puppet-lint/data.rb', line 540

def formatting_tokens
  @formatting_tokens ||= PuppetLint::Lexer::FORMATTING_TOKENS
end

.function_indexes ⇒ Object

Internal: Calculate the positions of all function calls within ‘tokens` Array.

Returns an Array of Hashes, each containing:

:start  - An Integer position in the `tokens` Array pointing to the
          first Token of a function call
:end    - An Integer position in the `tokens` Array pointing to the last
          Token of a function call
:tokens - An Array consisting of all the Token objects that make up the
          function call.



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# File 'lib/puppet-lint/data.rb', line 353

def function_indexes
  @function_indexes ||= begin
    functions = []
    tokens.each_with_index do |token, token_idx|
      next unless token.type == :NAME
      next unless token_idx.zero? ||
                  (token_idx == 1 && tokens[0].type == :WHITESPACE) ||
                  [:NEWLINE, :INDENT].include?(token.prev_token.type) ||
                  # function in a function
                  (token.prev_code_token && token.prev_code_token.type == :LPAREN)

      # Hash key
      next if token.next_code_token && token.next_code_token.type == :FARROW

      level = 0
      real_idx = 0
      in_paren = false
      tokens[token_idx + 1..-1].each_with_index do |cur_token, cur_token_idx|
        break if level.zero? && in_paren
        break if level.zero? && cur_token.type == :NEWLINE

        if cur_token.type == :LPAREN
          level += 1
          in_paren = true
        end
        level -= 1 if cur_token.type == :RPAREN
        real_idx = token_idx + 1 + cur_token_idx
      end

      functions << {
        start: token_idx,
        end: real_idx,
        tokens: tokens[token_idx..real_idx],
      }
    end
    functions
  end
end

.hash_indexes ⇒ Object

Internal: Calculate the positions of all hash values within ‘tokens` Array.

Returns an Array of Hashes, each containing:

:start  - An Integer position in the `tokens` Array pointing to the
          first Token of an hash value
:end    - An Integer position in the `tokens` Array pointing to the last
          Token of an hash value
:tokens - An Array consisting of all the Token objects that make up the
          hash value.



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# File 'lib/puppet-lint/data.rb', line 438

def hash_indexes
  @hash_indexes ||= begin
    hashes = []
    tokens.each_with_index do |token, token_idx|
      next unless token.type == :LBRACE
      next unless token.prev_code_token
      next unless [:EQUALS, :ISEQUAL, :FARROW, :LPAREN].include?(token.prev_code_token.type)

      level = 0
      real_idx = 0
      tokens[token_idx + 1..-1].each_with_index do |cur_token, cur_token_idx|
        real_idx = token_idx + 1 + cur_token_idx

        level += 1 if cur_token.type == :LBRACE
        level -= 1 if cur_token.type == :RBRACE
        break if level < 0
      end

      hashes << {
        start: token_idx,
        end: real_idx,
        tokens: tokens[token_idx..real_idx],
      }
    end
    hashes
  end
end

.ignore_overrides ⇒ Object

Internal: Retrieves a Hash of Sets. Each key is a check name Symbol and the Set of Integers returned lists all the lines that the check results should be ignored on.

Returns a Hash of Sets of Integers.



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# File 'lib/puppet-lint/data.rb', line 549

def ignore_overrides
  @ignore_overrides ||= {}
end

.insert(index, token) ⇒ Object

Public: Add new token.



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# File 'lib/puppet-lint/data.rb', line 66

def insert(index, token)
  current_token = tokens[index - 1]
  token.next_token = current_token.next_token
  token.prev_token = current_token

  current_token.next_token.prev_token = token unless current_token.next_token.nil?

  unless formatting_tokens.include?(token.type)
    current_token.next_token.prev_code_token = token unless current_token.next_token.nil?
    next_nf_idx = tokens[index..-1].index { |r| !formatting_tokens.include?(r.type) }
    unless next_nf_idx.nil?
      next_nf_token = tokens[index + next_nf_idx]
      token.next_code_token = next_nf_token
      next_nf_token.prev_code_token = token
    end
  end

  if formatting_tokens.include?(current_token.type)
    prev_nf_idx = tokens[0..index - 1].rindex { |r| !formatting_tokens.include?(r.type) }
    unless prev_nf_idx.nil?
      prev_nf_token = tokens[prev_nf_idx]
      token.prev_code_token = prev_nf_token
      prev_nf_token.next_code_token = token
    end
  else
    token.prev_code_token = current_token
  end

  current_token.next_token = token
  unless formatting_tokens.include?(token.type)
    current_token.next_code_token = token
  end

  tokens.insert(index, token)
end

.node_indexes ⇒ Object

Internal: Calculate the positions of all node definitions within the ‘tokens` Array.

Returns an Array of Hashes, each containing:

:start  - An Integer position in the `tokens` Array pointing to the
          first Token of a defined type definition.
:end    - An Integer position in the `tokens` Array pointing to the last
          Token of a defined type definition.
:tokens - An Array consisting of all the Token objects that make up the
          defined type.



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# File 'lib/puppet-lint/data.rb', line 286

def node_indexes
  @node_indexes ||= definition_indexes(:NODE)
end

.param_tokens(these_tokens) ⇒ Object

Internal: Finds all the tokens that make up the defined type or class definition parameters.

these_tokens - An Array of PuppetLint::Lexer::Token objects that make up

the defined type or class definition.

Returns an Array of PuppetLint::Lexer::Token objects or nil if it takes no parameters.



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# File 'lib/puppet-lint/data.rb', line 508

def param_tokens(these_tokens)
  depth = 0
  lparen_idx = nil
  rparen_idx = nil

  these_tokens.each_with_index do |token, i|
    if token.type == :LPAREN
      depth += 1
      lparen_idx = i if depth == 1
    elsif token.type == :RPAREN
      depth -= 1
      if depth.zero?
        rparen_idx = i
        break
      end
    elsif token.type == :LBRACE && depth.zero?
      # no parameters
      break
    end
  end

  if lparen_idx.nil? || rparen_idx.nil?
    nil
  else
    these_tokens[(lparen_idx + 1)..(rparen_idx - 1)]
  end
end

.parse_control_comments ⇒ Object

Internal: Parses all COMMENT, MLCOMMENT and SLASH_COMMENT tokens looking for control comments (comments that enable or disable checks). Builds the contents of the ‘ignore_overrides` hash.

Returns nothing.



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# File 'lib/puppet-lint/data.rb', line 558

def parse_control_comments
  @ignore_overrides.each_key { |check| @ignore_overrides[check].clear }

  comment_token_types = Set[:COMMENT, :MLCOMMENT, :SLASH_COMMENT]

  comment_tokens = tokens.select do |token|
    comment_token_types.include?(token.type)
  end
  control_comment_tokens = comment_tokens.select do |token|
    token.value.strip =~ %r{\Alint\:(ignore\:[\w\d]+|endignore)}
  end

  stack = []
  control_comment_tokens.each do |token|
    comment_data = []
    reason = []

    comment_words = token.value.strip.split(%r{\s+})
    comment_words.each_with_index do |word, i|
      if %r{\Alint\:(ignore|endignore)}.match?(word)
        comment_data << word
      else
        # Once we reach the first non-controlcomment word, assume the rest
        # of the words are the reason.
        reason = comment_words[i..-1]
        break
      end
    end

    stack_add = []

    comment_data.each do |control|
      split_control = control.split(':')
      command = split_control[1]

      if command == 'ignore'
        check = split_control[2].to_sym
        if token.prev_token && !Set[:NEWLINE, :INDENT].include?(token.prev_token.type)
          # control comment at the end of the line, override applies to
          # a single line only
          (ignore_overrides[check] ||= {})[token.line] = reason.join(' ')
        else
          stack_add << [token.line, reason.join(' '), check]
        end
      else
        top_override = stack.pop
        if top_override.nil?
          # TODO: refactor to provide a way to expose problems from
          # PuppetLint::Data via the normal problem reporting mechanism.
          $stderr.puts "WARNING: lint:endignore comment with no opening lint:ignore:<check> comment found on line #{token.line}"
        else
          top_override.each do |start|
            next if start.nil?

            (start[0]..token.line).each do |i|
              (ignore_overrides[start[2]] ||= {})[i] = start[1]
            end
          end
        end
      end
    end
    stack << stack_add unless stack_add.empty?
  end

  stack.each do |control|
    $stderr.puts "WARNING: lint:ignore:#{control[0][2]} comment on line #{control[0][0]} with no closing lint:endignore comment"
  end
end

.resource_indexes ⇒ Object

Internal: Calculate the positions of all resource declarations within the tokenised manifest. These positions only point to the content of the resource declarations, they do not include resource types or titles.

Returns an Array of Hashes, each containing:

:start - An Integer position in the `tokens` Array pointing to the
         first Token of a resource declaration.
:end   - An Integer position in the `tokens` Array pointing to the last
         Token of a resource declaration.



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# File 'lib/puppet-lint/data.rb', line 179

def resource_indexes
  @resource_indexes ||= begin
    marker = 0
    result = []
    tokens.select { |t| t.type == :COLON }.each do |colon_token|
      next unless colon_token.next_code_token && colon_token.next_code_token.type != :LBRACE
      next if classref?(colon_token)

      rel_start_idx = tokens[marker..-1].index(colon_token)
      break if rel_start_idx.nil?
      start_idx = rel_start_idx + marker
      end_token = colon_token.next_token_of([:SEMIC, :RBRACE])
      rel_end_idx = tokens[start_idx..-1].index(end_token)
      raise PuppetLint::SyntaxError, colon_token if rel_end_idx.nil?
      marker = rel_end_idx + start_idx

      result << {
        start: start_idx + 1,
        end: marker,
        tokens: tokens[start_idx..marker],
        type: find_resource_type_token(start_idx),
        param_tokens: find_resource_param_tokens(tokens[start_idx..marker]),
      }
    end
    result
  end
end

.ruby1? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/puppet-lint/data.rb', line 35

def ruby1?
  @ruby1 = RbConfig::CONFIG['MAJOR'] == '1' if @ruby1.nil?
  @ruby1
end

.title_tokens ⇒ Object

Internal: Retrieve a list of tokens that represent resource titles

Returns an Array of PuppetLint::Lexer::Token objects.



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# File 'lib/puppet-lint/data.rb', line 134

def title_tokens
  @title_tokens ||= begin
    result = []
    tokens.each_index do |token_idx|
      if tokens[token_idx].type == :COLON
        # gather a list of tokens that are resource titles
        if tokens[token_idx - 1].type == :RBRACK
          array_start_idx = tokens.rindex do |r|
            r.type == :LBRACK
          end
          title_array_tokens = tokens[(array_start_idx + 1)..(token_idx - 2)]
          result += title_array_tokens.select do |token|
            { STRING: true, NAME: true }.include?(token.type)
          end
        else
          next_token = tokens[token_idx].next_code_token
          result << tokens[token_idx - 1] unless next_token.type == :LBRACE
        end
      end
    end
    result
  end
end

.tokens ⇒ Object

Public: Get the tokenised manifest.

Returns an Array of PuppetLint::Lexer::Token objects.



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# File 'lib/puppet-lint/data.rb', line 43

def tokens
  calling_method = if ruby1?
                     begin
                       caller[0][%r{`.*'}][1..-2] # rubocop:disable Performance/Caller
                     rescue NoMethodError
                       caller[1][%r{`.*'}][1..-2] # rubocop:disable Performance/Caller
                     end
                   else
                     begin
                       caller(0..0).first[%r{`.*'}][1..-2]
                     rescue NoMethodError
                       caller(1..1).first[%r{`.*'}][1..-2]
                     end
                   end

  if calling_method == 'check'
    @tokens.dup
  else
    @tokens
  end
end

.tokens=(tokens) ⇒ Object

Internal: Store the tokenised manifest.

tokens - The Array of PuppetLint::Lexer::Token objects to store.

Returns nothing.



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# File 'lib/puppet-lint/data.rb', line 22

def tokens=(tokens)
  @tokens = tokens
  @title_tokens = nil
  @resource_indexes = nil
  @class_indexes = nil
  @defined_type_indexes = nil
  @node_indexes = nil
  @function_indexes = nil
  @array_indexes = nil
  @hash_indexes = nil
  @defaults_indexes = nil
end