Class: VersionGemfile::Versioner

Inherits:
Object
  • Object
show all
Defined in:
lib/version_gemfile/versioner.rb

Constant Summary collapse

IS_GEM_LINE = 
/^\s* gem \s+ ['|"] /ix
HAS_VERSION = 
/^\s*gem \s+ ['|"] \s* [\w|-]+ \s* ['|"]\s*,\s*['|"]/ix
GET_GEM_NAME = 
/^\s*gem \s+ ['|"] \s* ([\w|-]+) \s* ['|"]/ix
GET_VERSION_NUMBER = 
/^\s+[\w|-]+ \s \( ([\w|\.]+) \)/ix

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Versioner

Returns a new instance of Versioner.



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# File 'lib/version_gemfile/versioner.rb', line 17

def initialize(options = {})
  @options = normalize_hash(options.clone)
  @gemfile_path = @options.fetch('gemfile'){ 'Gemfile' }
  @lockfile_path = "#{@gemfile_path}.lock"

  @lock_contents   = File.read(lockfile_path)
  @gemfile_content = File.readlines(gemfile_path)
  @orig_gemfile = File.read(gemfile_path)
end

Instance Attribute Details

#gemfile_content ⇒ Object (readonly)

Returns the value of attribute gemfile_content.



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# File 'lib/version_gemfile/versioner.rb', line 5

def gemfile_content
  @gemfile_content
end

#gemfile_path ⇒ Object (readonly)

Returns the value of attribute gemfile_path.



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# File 'lib/version_gemfile/versioner.rb', line 5

def gemfile_path
  @gemfile_path
end

#lock_contents ⇒ Object (readonly)

Returns the value of attribute lock_contents.



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# File 'lib/version_gemfile/versioner.rb', line 5

def lock_contents
  @lock_contents
end

#lockfile_path ⇒ Object (readonly)

Returns the value of attribute lockfile_path.



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# File 'lib/version_gemfile/versioner.rb', line 5

def lockfile_path
  @lockfile_path
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/version_gemfile/versioner.rb', line 5

def options
  @options
end

Class Method Details

.add_versions!(options = {}) ⇒ Object 



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# File 'lib/version_gemfile/versioner.rb', line 13

def self.add_versions!(options = {})
  new(options).add_versions
end

Instance Method Details

#add_versions ⇒ Object

TODO: Clean this up!



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# File 'lib/version_gemfile/versioner.rb', line 28

def add_versions
  new_gemfile = Tempfile.new("Gemfile.versioned")
  begin
    gemfile_content.each do |gem_line|
      if is_gem_line?(gem_line)
        new_gemfile.puts(build_gem_line(gem_line))
      else
        new_gemfile.puts(gem_line)
      end
    end
    File.truncate(gemfile_path, 0)
    new_gemfile.rewind
    File.open(gemfile_path, "w") {|f| f.write(new_gemfile.read)}
  rescue Exception => e
    puts "ERROR: #{e}"
    puts "Restoring Gemfile at #{gemfile_path}"
    File.open(gemfile_path, "w") {|f| f.write(@orig_gemfile)}
  ensure
    new_gemfile.close
    new_gemfile.unlink
  end
end

#build_gem_line(gem_line, version = nil) ⇒ Object 



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# File 'lib/version_gemfile/versioner.rb', line 59

def build_gem_line(gem_line, version = nil)
  return gem_line if gem_line.match(HAS_VERSION)
  gem_name = gem_line.match(GET_GEM_NAME) { $1 }
  spaces = gem_line.match(/^(\s+)/){ $1 }
  version ||= get_version(gem_name)
  "#{spaces}gem '#{gem_name}', '~> #{version}'"
end

#is_gem_line?(gem_line) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/version_gemfile/versioner.rb', line 55

def is_gem_line?(gem_line)
  gem_line =~ IS_GEM_LINE
end

#match_gem(gem_line) ⇒ Object 



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# File 'lib/version_gemfile/versioner.rb', line 51

def match_gem(gem_line)
  gem_line.match(HAS_VERSION)
end