Class: GemXray::GemfileSourceParser

Inherits:
Object
  • Object
show all
Defined in:
lib/gemxray/gemfile_source_parser.rb

Defined Under Namespace

Classes: GemInvocationRecorder, Metadata

Instance Method Summary collapse

Constructor Details

#initialize(gemfile_path) ⇒ GemfileSourceParser

Returns a new instance of GemfileSourceParser.



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# File 'lib/gemxray/gemfile_source_parser.rb', line 19

def initialize(gemfile_path)
  @gemfile_path = gemfile_path
end

Instance Method Details

#parse ⇒ Object 



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# File 'lib/gemxray/gemfile_source_parser.rb', line 23

def parse
  lines = File.readlines(gemfile_path, chomp: false)
  entries = []
  block_stack = []
  index = 0

  while index < lines.length
    stripped = lines[index].strip

    if group_block_start?(stripped)
      block_stack << { type: :group, groups: parse_group_names(stripped) }
      index += 1
      next
    end

    if generic_block_start?(stripped)
      block_stack << { type: :block, groups: [] }
      index += 1
      next
    end

    if stripped == "end"
      block_stack.pop
      index += 1
      next
    end

    unless gem_statement_start?(lines[index])
      index += 1
      next
    end

    start_index = index
    statement_lines = [lines[index]]
    until syntax_complete?(statement_lines.join)
      index += 1
      break if index >= lines.length

      statement_lines << lines[index]
    end

    metadata = parse_statement(statement_lines.join, start_index + 1, current_groups(block_stack))
    entries << metadata if metadata
    index += 1
  end

  entries
end