Class: Gem::Ext::Builder

Inherits:
Object
  • Object
show all
Includes:
UserInteraction
Defined in:
lib/rubygems/ext/builder.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from UserInteraction

#alert, #alert_error, #alert_warning, #ask, #ask_for_password, #ask_yes_no, #choose_from_list, #say, #terminate_interaction, #verbose

Methods included from DefaultUserInteraction

ui, #ui, ui=, #ui=, use_ui, #use_ui

Methods included from Text

#clean_text, #format_text, #levenshtein_distance, #min3, #truncate_text

Constructor Details

#initialize(spec, build_args = spec.build_args) ⇒ Builder

Creates a new extension builder for spec. If the spec does not yet have build arguments, saved, set build_args which is an ARGV-style array.



111
112
113
114
115
116
117
 
# File 'lib/rubygems/ext/builder.rb', line 111

def initialize(spec, build_args = spec.build_args)
  @spec       = spec
  @build_args = build_args
  @gem_dir    = spec.full_gem_path

  @ran_rake = false
end

Instance Attribute Details

#build_args ⇒ Object

:nodoc:



13
14
15
 
# File 'lib/rubygems/ext/builder.rb', line 13

def build_args
  @build_args
end

Class Method Details

.class_name ⇒ Object 



15
16
17
18
 
# File 'lib/rubygems/ext/builder.rb', line 15

def self.class_name
  name =~ /Ext::(.*)Builder/
  $1.downcase
end

.make(dest_path, results, make_dir = Dir.pwd, sitedir = nil) ⇒ Object 



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
 
# File 'lib/rubygems/ext/builder.rb', line 20

def self.make(dest_path, results, make_dir = Dir.pwd, sitedir = nil)
  unless File.exist? File.join(make_dir, "Makefile")
    raise Gem::InstallError, "Makefile not found"
  end

  # try to find make program from Ruby configure arguments first
  RbConfig::CONFIG["configure_args"] =~ /with-make-prog\=(\w+)/
  make_program_name = ENV["MAKE"] || ENV["make"] || $1
  unless make_program_name
    make_program_name = (/mswin/ =~ RUBY_PLATFORM) ? "nmake" : "make"
  end
  make_program = Shellwords.split(make_program_name)

  # The installation of the bundled gems is failed when DESTDIR is empty in mswin platform.
  destdir = (/\bnmake/i !~ make_program_name || ENV["DESTDIR"] && ENV["DESTDIR"] != "") ? "DESTDIR=%s" % ENV["DESTDIR"] : ""

  env = [destdir]

  if sitedir
    env << "sitearchdir=%s" % sitedir
    env << "sitelibdir=%s" % sitedir
  end

  ["clean", "", "install"].each do |target|
    # Pass DESTDIR via command line to override what's in MAKEFLAGS
    cmd = [
      *make_program,
      *env,
      target,
    ].reject(&:empty?)
    begin
      run(cmd, results, "make #{target}".rstrip, make_dir)
    rescue Gem::InstallError
      raise unless target == "clean" # ignore clean failure
    end
  end
end

.run(command, results, command_name = nil, dir = Dir.pwd, env = {}) {|status, results| ... } ⇒ Object

Yields:

  • (status, results) 


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
 
# File 'lib/rubygems/ext/builder.rb', line 58

def self.run(command, results, command_name = nil, dir = Dir.pwd, env = {})
  verbose = Gem.configuration.really_verbose

  begin
    rubygems_gemdeps, ENV["RUBYGEMS_GEMDEPS"] = ENV["RUBYGEMS_GEMDEPS"], nil
    if verbose
      puts("current directory: #{dir}")
      p(command)
    end
    results << "current directory: #{dir}"
    require "shellwords"
    results << command.shelljoin

    require "open3"
    # Set $SOURCE_DATE_EPOCH for the subprocess.
    build_env = { "SOURCE_DATE_EPOCH" => Gem.source_date_epoch_string }.merge(env)
    output, status = begin
                       Open3.capture2e(build_env, *command, :chdir => dir)
                     rescue => error
                       raise Gem::InstallError, "#{command_name || class_name} failed#{error.message}"
                     end
    if verbose
      puts output
    else
      results << output
    end
  ensure
    ENV["RUBYGEMS_GEMDEPS"] = rubygems_gemdeps
  end

  unless status.success?
    results << "Building has failed. See above output for more information on the failure." if verbose
  end

  yield(status, results) if block_given?

  unless status.success?
    exit_reason =
      if status.exited?
        ", exit code #{status.exitstatus}"
      elsif status.signaled?
        ", uncaught signal #{status.termsig}"
      end

    raise Gem::InstallError, "#{command_name || class_name} failed#{exit_reason}"
  end
end

Instance Method Details

#build_error(output, backtrace = nil) ⇒ Object

Logs the build output, then raises Gem::Ext::BuildError.

Raises:



144
145
146
147
148
149
150
151
152
153
154
155
156
157
 
# File 'lib/rubygems/ext/builder.rb', line 144

def build_error(output, backtrace = nil) # :nodoc:
  gem_make_out = write_gem_make_out output

  message = <<-EOF
ERROR: Failed to build gem native extension.

  #{output}

Gem files will remain installed in #{@gem_dir} for inspection.
Results logged to #{gem_make_out}
EOF

  raise Gem::Ext::BuildError, message, backtrace
end

#build_extension(extension, dest_path) ⇒ Object

:nodoc:



159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
 
# File 'lib/rubygems/ext/builder.rb', line 159

def build_extension(extension, dest_path) # :nodoc:
  results = []

  builder = builder_for(extension)

  extension_dir =
    File.expand_path File.join(@gem_dir, File.dirname(extension))
  lib_dir = File.join @spec.full_gem_path, @spec.raw_require_paths.first

  begin
    FileUtils.mkdir_p dest_path

    results = builder.build(extension, dest_path,
                            results, @build_args, lib_dir, extension_dir)

    verbose { results.join("\n") }

    write_gem_make_out results.join "\n"
  rescue => e
    results << e.message
    build_error(results.join("\n"), $@)
  end
end

#build_extensions ⇒ Object

Builds extensions. Valid types of extensions are extconf.rb files, configure scripts and rakefiles or mkrf_conf files.



187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
 
# File 'lib/rubygems/ext/builder.rb', line 187

def build_extensions
  return if @spec.extensions.empty?

  if @build_args.empty?
    say "Building native extensions. This could take a while..."
  else
    say "Building native extensions with: '#{@build_args.join ' '}'"
    say "This could take a while..."
  end

  dest_path = @spec.extension_dir

  require "fileutils"
  FileUtils.rm_f @spec.gem_build_complete_path

  @spec.extensions.each do |extension|
    break if @ran_rake

    build_extension extension, dest_path
  end

  FileUtils.touch @spec.gem_build_complete_path
end

#builder_for(extension) ⇒ Object

Chooses the extension builder class for extension



122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
 
# File 'lib/rubygems/ext/builder.rb', line 122

def builder_for(extension) # :nodoc:
  case extension
  when /extconf/ then
    Gem::Ext::ExtConfBuilder
  when /configure/ then
    Gem::Ext::ConfigureBuilder
  when /rakefile/i, /mkrf_conf/i then
    @ran_rake = true
    Gem::Ext::RakeBuilder
  when /CMakeLists.txt/ then
    Gem::Ext::CmakeBuilder
  when /Cargo.toml/ then
    # We use the spec name here to ensure we invoke the correct init function later
    Gem::Ext::CargoBuilder.new(@spec)
  else
    build_error("No builder for extension '#{extension}'")
  end
end

#write_gem_make_out(output) ⇒ Object

Writes output to gem_make.out in the extension install directory.



214
215
216
217
218
219
220
221
222
223
224
 
# File 'lib/rubygems/ext/builder.rb', line 214

def write_gem_make_out(output) # :nodoc:
  destination = File.join @spec.extension_dir, "gem_make.out"

  FileUtils.mkdir_p @spec.extension_dir

  File.open destination, "wb" do |io|
    io.puts output
  end

  destination
end