Class: GemBench::Jersey

Inherits:
Object
  • Object
show all
Defined in:
lib/gem_bench/jersey.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(gem_name:, trades:, metadata: {}, verbose: false) ⇒ Jersey

Returns a new instance of Jersey.



35
36
37
38
39
40
41
42
 
# File 'lib/gem_bench/jersey.rb', line 35

def initialize(gem_name:, trades:, metadata: {}, verbose: false)
  @gem_name = gem_name
  @gem_path = Gem.loaded_specs[gem_name]&.full_gem_path
  @gem_lib_dir = Gem
  @trades = trades
  @metadata = metadata
  @verbose = verbose
end

Instance Attribute Details

#files ⇒ Object (readonly)

Returns the value of attribute files.



32
33
34
 
# File 'lib/gem_bench/jersey.rb', line 32

def files
  @files
end

#gem_name ⇒ Object (readonly)

Returns the value of attribute gem_name.



28
29
30
 
# File 'lib/gem_bench/jersey.rb', line 28

def gem_name
  @gem_name
end

#gem_path ⇒ Object (readonly)

Returns the value of attribute gem_path.



29
30
31
 
# File 'lib/gem_bench/jersey.rb', line 29

def gem_path
  @gem_path
end

#metadata ⇒ Object (readonly)

Returns the value of attribute metadata.



31
32
33
 
# File 'lib/gem_bench/jersey.rb', line 31

def metadata
  @metadata
end

#trades ⇒ Object (readonly)

Returns the value of attribute trades.



30
31
32
 
# File 'lib/gem_bench/jersey.rb', line 30

def trades
  @trades
end

#verbose ⇒ Object (readonly)

Returns the value of attribute verbose.



33
34
35
 
# File 'lib/gem_bench/jersey.rb', line 33

def verbose
  @verbose
end

Instance Method Details

#as_klass ⇒ Object

Will raise NameError if called before #doff_and_don



106
107
108
 
# File 'lib/gem_bench/jersey.rb', line 106

def as_klass
  Object.const_get(primary_namespace) if gem_path
end

#doff_and_don(&block) ⇒ Object

Generates tempfiles and requires them, resulting

in a loaded gem that will not have namespace
collisions when alongside the original-namespaced gem.

If a block is provided the contents of each file will be yielded to the block,

after all namespace substitutions are complete, but before the contents
are written to the re-namespaced gem. The return value of the block will be
written to the file in this scenario.

Returns:

  • void



57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
 
# File 'lib/gem_bench/jersey.rb', line 57

def doff_and_don(&block)
  return puts "Skipping #{gem_name} (not loaded on #{RUBY_VERSION})" unless gem_path

  puts "Doffing #{gem_path}" if verbose
  Dir.mktmpdir do |directory|
    files = []
    Dir[File.join(gem_path, "lib", "**", "*.rb")].map do |file|
      if verbose
        puts file
        puts File.basename(file)
        puts "--------------------------------"
      end
      dirname = File.dirname(file)
      puts "dirname: #{dirname}" if verbose
      is_at_gem_root = dirname[(-4)..(-1)] == "/lib"
      puts "is_at_gem_root: #{is_at_gem_root}" if verbose
      lib_split = dirname.split("/lib/")[-1]
      puts "lib_split: #{lib_split}" if verbose
      # lib_split could be like:
      #   - "ruby/gems/3.2.0/gems/method_source-1.1.0/lib"
      #   - "method_source"
      # Se we check to make sure it is actually a subdir of the gem's lib directory
      full_path = File.join(gem_path, "lib", lib_split)
      relative_path = !is_at_gem_root && Dir.exist?(full_path) && lib_split
      puts "relative_path: #{relative_path}" if verbose
      filename = File.basename(file)[0..-4]
      puts "filename: #{filename}" if verbose

      if relative_path
        dir_path = File.join(directory, relative_path)
        Dir.mkdir(dir_path) unless Dir.exist?(dir_path)
        puts "creating #{filename} in #{dir_path}" if verbose
        files << create_tempfile_copy(file, filename, dir_path, :dd1, &block)
      else
        puts "directory not relative (#{directory}) for file #{filename}" if verbose
        files << create_tempfile_copy(file, filename, directory, :dd2, &block)
      end
    end
    load_gem_copy(files)
  end

  nil
end

#primary_namespace ⇒ Object 



101
102
103
 
# File 'lib/gem_bench/jersey.rb', line 101

def primary_namespace
  trades.values.first
end

#required? ⇒ Boolean

Returns:

  • (Boolean) 


44
45
46
 
# File 'lib/gem_bench/jersey.rb', line 44

def required?
  gem_path && trades.values.all? { |new_namespace| Object.const_defined?(new_namespace) }
end