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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
##
# BasicSpecification is an abstract class which implements some common code
# used by both Specification and StubSpecification.
class Gem::BasicSpecification
##
# Allows installation of extensions for git: gems.
attr_writer :base_dir # :nodoc:
##
# Sets the directory where extensions for this gem will be installed.
attr_writer :extension_install_dir # :nodoc:
##
# The path this gemspec was loaded from. This attribute is not persisted.
attr_reader :loaded_from
##
# Allows correct activation of git: and path: gems.
attr_writer :full_gem_path # :nodoc:
def self.default_specifications_dir
File.join(Gem.default_dir, "specifications", "default")
end
##
# True when the gem has been activated
def activated?
raise NotImplementedError
end
##
# Returns the full path to the base gem directory.
#
# eg: /usr/local/lib/ruby/gems/1.8
def base_dir
return Gem.dir unless loaded_from
@base_dir ||= if default_gem? then
File.dirname File.dirname File.dirname loaded_from
else
File.dirname File.dirname loaded_from
end
end
##
# Return true if this spec can require +file+.
def contains_requirable_file? file
build_extensions
suffixes = Gem.suffixes
full_require_paths.any? do |dir|
base = "#{dir}/#{file}"
suffixes.any? { |suf| File.file? "#{base}#{suf}" }
end
end
def default_gem?
loaded_from &&
File.dirname(loaded_from) == self.class.default_specifications_dir
end
##
# The directory the named +extension+ was installed into after being built.
#
# Usage:
#
# spec.extensions.each do |ext|
# puts spec.extension_install_dir ext
# end
def extension_install_dir
@extension_install_dir ||=
File.join base_dir, 'extensions', Gem::Platform.local.to_s,
Gem.extension_api_version, full_name
end
def find_full_gem_path # :nodoc:
# TODO: also, shouldn't it default to full_name if it hasn't been written?
path = File.expand_path File.join(gems_dir, full_name)
path.untaint
path if File.directory? path
end
private :find_full_gem_path
##
# The full path to the gem (install path + full name).
def full_gem_path
# TODO: This is a heavily used method by gems, so we'll need
# to aleast just alias it to #gem_dir rather than remove it.
@full_gem_path ||= find_full_gem_path
end
##
# Returns the full name (name-version) of this Gem. Platform information
# is included (name-version-platform) if it is specified and not the
# default Ruby platform.
def full_name
if platform == Gem::Platform::RUBY or platform.nil? then
"#{name}-#{version}".untaint
else
"#{name}-#{version}-#{platform}".untaint
end
end
##
# Full paths in the gem to add to <code>$LOAD_PATH</code> when this gem is
# activated.
def full_require_paths
full_paths = @require_paths.map do |path|
File.join full_gem_path, path
end
full_paths.unshift extension_install_dir unless @extensions.empty?
full_paths
end
##
# Returns the full path to this spec's gem directory.
# eg: /usr/local/lib/ruby/1.8/gems/mygem-1.0
def gem_dir
@gem_dir ||= File.expand_path File.join(gems_dir, full_name)
end
##
# Returns the full path to the gems directory containing this spec's
# gem directory. eg: /usr/local/lib/ruby/1.8/gems
def gems_dir
# TODO: this logic seems terribly broken, but tests fail if just base_dir
@gems_dir ||= File.join(loaded_from && base_dir || Gem.dir, "gems")
end
##
# Set the path the Specification was loaded from. +path+ is converted to a
# String.
def loaded_from= path
@loaded_from = path && path.to_s
@extension_install_dir = nil
@full_gem_path = nil
@gems_dir = nil
@base_dir = nil
end
##
# Name of the gem
def name
raise NotImplementedError
end
##
# Platform of the gem
def platform
raise NotImplementedError
end
def raw_require_paths # :nodoc:
@require_paths
end
##
# Paths in the gem to add to <code>$LOAD_PATH</code> when this gem is
# activated.
#
# See also #require_paths=
#
# If you have an extension you do not need to add <code>"ext"</code> to the
# require path, the extension build process will copy the extension files
# into "lib" for you.
#
# The default value is <code>"lib"</code>
#
# Usage:
#
# # If all library files are in the root directory...
# spec.require_path = '.'
def require_paths
return @require_paths if @extensions.empty?
relative_extension_install_dir =
File.join '..', '..', 'extensions', Gem::Platform.local.to_s,
Gem.extension_api_version, full_name
[relative_extension_install_dir].concat @require_paths
end
##
# Return a Gem::Specification from this gem
def to_spec
raise NotImplementedError
end
##
# Version of the gem
def version
raise NotImplementedError
end
##
# Whether this specification is stubbed - i.e. we have information
# about the gem from a stub line, without having to evaluate the
# entire gemspec file.
def stubbed?
raise NotImplementedError
end
end
|