1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
require 'pathname'
module Gem
class Dependency
if !instance_methods.map { |m| m.to_s }.include?("requirement")
def requirement
version_requirements
end
end
end
end
module Bundler
module SharedHelpers
def default_gemfile
gemfile = find_gemfile
gemfile or raise GemfileNotFound, "The default Gemfile was not found"
Pathname.new(gemfile)
end
def in_bundle?
find_gemfile
end
private
def find_gemfile
return ENV['BUNDLE_GEMFILE'] if ENV['BUNDLE_GEMFILE']
previous = nil
current = File.expand_path(Dir.pwd)
until !File.directory?(current) || current == previous
filename = File.join(current, 'Gemfile')
return filename if File.file?(filename)
current, previous = File.expand_path("..", current), current
end
end
def clean_load_path
# handle 1.9 where system gems are always on the load path
if defined?(::Gem)
me = File.expand_path("../../", __FILE__)
$LOAD_PATH.reject! do |p|
next if File.expand_path(p).include?(me)
p != File.dirname(__FILE__) &&
Gem.path.any? { |gp| p.include?(gp) }
end
$LOAD_PATH.uniq!
end
end
def reverse_rubygems_kernel_mixin
# Disable rubygems' gem activation system
::Kernel.class_eval do
if private_method_defined?(:gem_original_require)
alias rubygems_require require
alias require gem_original_require
end
undef gem
end
end
def cripple_rubygems(specs)
reverse_rubygems_kernel_mixin
executables = specs.map { |s| s.executables }.flatten
:: Kernel.class_eval do
private
def gem(*) ; end
end
Gem.source_index # ensure RubyGems is fully loaded
::Kernel.send(:define_method, :gem) do |dep, *reqs|
if executables.include? File.basename(caller.first.split(':').first)
return
end
opts = reqs.last.is_a?(Hash) ? reqs.pop : {}
unless dep.respond_to?(:name) && dep.respond_to?(:requirement)
dep = Gem::Dependency.new(dep, reqs)
end
spec = specs.find { |s| s.name == dep.name }
if spec.nil?
e = Gem::LoadError.new "#{dep.name} is not part of the bundle. Add it to Gemfile."
e.name = dep.name
e.version_requirement = dep.requirement
raise e
elsif dep !~ spec
e = Gem::LoadError.new "can't activate #{dep}, already activated #{spec.full_name}. " \
"Make sure all dependencies are added to Gemfile."
e.name = dep.name
e.version_requirement = dep.requirement
raise e
end
true
end
# === Following hacks are to improve on the generated bin wrappers ===
# Yeah, talk about a hack
source_index_class = (class << Gem::SourceIndex ; self ; end)
source_index_class.send(:define_method, :from_gems_in) do |*args|
source_index = Gem::SourceIndex.new
source_index.spec_dirs = *args
source_index.add_specs(*specs)
source_index
end
# OMG more hacks
gem_class = (class << Gem ; self ; end)
gem_class.send(:define_method, :bin_path) do |name, *args|
exec_name, *reqs = args
spec = nil
if exec_name
spec = specs.find { |s| s.executables.include?(exec_name) }
spec or raise Gem::Exception, "can't find executable #{exec_name}"
else
spec = specs.find { |s| s.name == name }
exec_name = spec.default_executable or raise Gem::Exception, "no default executable for #{spec.full_name}"
end
gem_bin = File.join(spec.full_gem_path, spec.bindir, exec_name)
gem_from_path_bin = File.join(File.dirname(spec.loaded_from), spec.bindir, exec_name)
File.exist?(gem_bin) ? gem_bin : gem_from_path_bin
end
end
extend self
end
end
|
