summaryrefslogtreecommitdiff
path: root/lib/bundler/cli/gem.rb
blob: 2704bbec7c50f313f32e30295f1f7b657548bd44 (plain)
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
require "pathname"

module Bundler
  class CLI::Gem
    TEST_FRAMEWORK_VERSIONS = {
      "rspec" => "3.0",
      "minitest" => "5.0"
    }

    attr_reader :options, :gem_name, :thor, :name, :target

    def initialize(options, gem_name, thor)
      @options = options
      @gem_name = resolve_name(gem_name)
      @thor = thor

      @name = @gem_name
      @target = SharedHelpers.pwd.join(gem_name)

      validate_ext_name if options[:ext]
    end

    def run
      Bundler.ui.confirm "Creating gem '#{name}'..."

      underscored_name = name.tr("-", "_")
      namespaced_path = name.tr("-", "/")
      constant_name = name.gsub(/-[_-]*(?![_-]|$)/) { "::" }.gsub(/([_-]+|(::)|^)(.|$)/) { $2.to_s + $3.upcase }
      constant_array = constant_name.split("::")
      test_task = options[:test] == "minitest" ? "test" : "spec"

      git_user_name = `git config user.name`.chomp
      git_user_email = `git config user.email`.chomp

      config = {
        :name             => name,
        :underscored_name => underscored_name,
        :namespaced_path  => namespaced_path,
        :makefile_path    => "#{underscored_name}/#{underscored_name}",
        :constant_name    => constant_name,
        :constant_array   => constant_array,
        :author           => git_user_name.empty? ? "TODO: Write your name" : git_user_name,
        :email            => git_user_email.empty? ? "TODO: Write your email address" : git_user_email,
        :test             => options[:test],
        :test_task        => test_task,
        :ext              => options[:ext],
        :bin              => options[:bin],
        :bundler_version  => bundler_dependency_version
      }
      ensure_safe_gem_name(name, constant_array)

      templates = {
        "Gemfile.tt" => "Gemfile",
        "gitignore.tt" => ".gitignore",
        "lib/newgem.rb.tt" => "lib/#{namespaced_path}.rb",
        "lib/newgem/version.rb.tt" => "lib/#{namespaced_path}/version.rb",
        "newgem.gemspec.tt" => "#{name}.gemspec",
        "Rakefile.tt" => "Rakefile",
        "README.md.tt" => "README.md",
        "bin/console.tt" => "bin/console",
        "bin/setup.tt" => "bin/setup"
      }

      executables = %w[
        bin/console
        bin/setup
      ]

      if test_framework = ask_and_set_test_framework
        config[:test] = test_framework
        config[:test_framework_version] = TEST_FRAMEWORK_VERSIONS[test_framework]

        templates.merge!(".travis.yml.tt" => ".travis.yml")

        case test_framework
        when "rspec"
          templates.merge!(
            "rspec.tt" => ".rspec",
            "spec/spec_helper.rb.tt" => "spec/spec_helper.rb",
            "spec/newgem_spec.rb.tt" => "spec/#{namespaced_path}_spec.rb"
          )
        when "minitest"
          templates.merge!(
            "test/test_helper.rb.tt" => "test/test_helper.rb",
            "test/newgem_test.rb.tt" => "test/#{namespaced_path}_test.rb"
          )
        end
      end

      if ask_and_set(:mit, "Do you want to license your code permissively under the MIT license?",
        "This means that any other developer or company will be legally allowed to use your code " \
        "for free as long as they admit you created it. You can read more about the MIT license " \
        "at choosealicense.com/licenses/mit.")
        config[:mit] = true
        Bundler.ui.info "MIT License enabled in config"
        templates.merge!("LICENSE.txt.tt" => "LICENSE.txt")
      end

      if ask_and_set(:coc, "Do you want to include a code of conduct in gems you generate?",
        "Codes of conduct can increase contributions to your project by contributors who " \
        "prefer collaborative, safe spaces. You can read more about the code of conduct at " \
        "contributor-covenant.org. Having a code of conduct means agreeing to the responsibility " \
        "of enforcing it, so be sure that you are prepared to do that. For suggestions about " \
        "how to enforce codes of conduct, see bit.ly/coc-enforcement.")
        config[:coc] = true
        Bundler.ui.info "Code of conduct enabled in config"
        templates.merge!("CODE_OF_CONDUCT.md.tt" => "CODE_OF_CONDUCT.md")
      end

      templates.merge!("exe/newgem.tt" => "exe/#{name}") if options[:bin]

      if options[:ext]
        templates.merge!(
          "ext/newgem/extconf.rb.tt" => "ext/#{name}/extconf.rb",
          "ext/newgem/newgem.h.tt" => "ext/#{name}/#{underscored_name}.h",
          "ext/newgem/newgem.c.tt" => "ext/#{name}/#{underscored_name}.c"
        )
      end

      templates.each do |src, dst|
        thor.template("newgem/#{src}", target.join(dst), config)
      end

      executables.each do |file|
        path = target.join(file)
        executable = (path.stat.mode | 0111)
        path.chmod(executable)
      end

      Bundler.ui.info "Initializing git repo in #{target}"
      Dir.chdir(target) do
        `git init`
        `git add .`
      end

      if options[:edit]
        # Open gemspec in editor
        thor.run("#{options["edit"]} \"#{target.join("#{name}.gemspec")}\"")
      end
    end

  private

    def resolve_name(name)
      SharedHelpers.pwd.join(name).basename.to_s
    end

    def ask_and_set(key, header, message)
      choice = options[key] || Bundler.settings["gem.#{key}"]

      if choice.nil?
        Bundler.ui.confirm header
        choice = Bundler.ui.yes? "#{message} y/(n):"
        Bundler.settings.set_global("gem.#{key}", choice)
      end

      choice
    end

    def validate_ext_name
      return unless gem_name.index("-")

      Bundler.ui.error "You have specified a gem name which does not conform to the \n" \
                       "naming guidelines for C extensions. For more information, \n" \
                       "see the 'Extension Naming' section at the following URL:\n" \
                       "http://guides.rubygems.org/gems-with-extensions/\n"
      exit 1
    end

    def ask_and_set_test_framework
      test_framework = options[:test] || Bundler.settings["gem.test"]

      if test_framework.nil?
        Bundler.ui.confirm "Do you want to generate tests with your gem?"
        result = Bundler.ui.ask "Type 'rspec' or 'minitest' to generate those test files now and " \
          "in the future. rspec/minitest/(none):"
        if result =~ /rspec|minitest/
          test_framework = result
        else
          test_framework = false
        end
      end

      if Bundler.settings["gem.test"].nil?
        Bundler.settings.set_global("gem.test", test_framework)
      end

      test_framework
    end

    def bundler_dependency_version
      v = Gem::Version.new(Bundler::VERSION)
      req = v.segments[0..1]
      req << "a" if v.prerelease?
      req.join(".")
    end

    def ensure_safe_gem_name(name, constant_array)
      if name =~ /^\d/
        Bundler.ui.error "Invalid gem name #{name} Please give a name which does not start with numbers."
        exit 1
      elsif constant_array.inject(Object) {|c, s| (c.const_defined?(s) && c.const_get(s)) || break }
        Bundler.ui.error "Invalid gem name #{name} constant #{constant_array.join("::")} is already in use. Please choose another gem name."
        exit 1
      end
    end
  end
end