Replace rubygems-tasks by bundler and do more release automation

Also remove obsolete stripping of windows so files.
This is done by rake-compiler-dock already.

Gemfile

@@ -5,10 +5,7 @@ group :development do
   gem 'rake-compiler', '~> 1.0.3'
   gem 'rake-compiler-dock', '~> 1.0'
   gem 'rspec', '~> 3.0'
-  # irb is a dependency of rubygems-tasks 0.2.5.
-  # irb versions > 1.1.1 depend on reline,
-  # which sometimes causes 'bundle install' to fail on Ruby <= 2.4: https://github.com/rubygems/rubygems/issues/3463
-  gem 'rubygems-tasks', '>= 0.2', '< 0.2.5', :require => 'rubygems/tasks'
+  gem 'bundler', '~> 2.0'
 end
 
 group :doc do

Rakefile

@@ -1,20 +1,17 @@
-require 'rubygems/tasks'
 require 'rbconfig'
-require 'rake/clean'
-require_relative "lib/ffi/version"
-
 require 'date'
 require 'fileutils'
 require 'rbconfig'
 require 'rspec/core/rake_task'
 require 'rubygems/package_task'
+require 'rake/extensiontask'
+require_relative "lib/ffi/version"
+require_relative "rakelib/ffi_gem_helper"
 
 BUILD_DIR = "build"
 BUILD_EXT_DIR = File.join(BUILD_DIR, "#{RbConfig::CONFIG['arch']}", 'ffi_c', RUBY_VERSION)
 
-def gem_spec
-  @gem_spec ||= Gem::Specification.load('ffi.gemspec')
-end
+gem_spec = Bundler.load_gemspec('ffi.gemspec')
 
 RSpec::Core::RakeTask.new(:spec => :compile) do |config|
   config.rspec_opts = YAML.load_file 'spec/spec.opts'
@@ -87,35 +84,30 @@ end
 
 task 'gem:java' => 'java:gem'
 
+FfiGemHelper.install_tasks
+# Register windows gems to be pushed to rubygems.org
+Bundler::GemHelper.instance.cross_platforms = %w[i386-mingw32 x64-mingw32]
+
 if RUBY_ENGINE == 'ruby' || RUBY_ENGINE == 'rbx'
   require 'rake/extensiontask'
   Rake::ExtensionTask.new('ffi_c', gem_spec) do |ext|
     ext.name = 'ffi_c'                                        # indicate the name of the extension.
     # ext.lib_dir = BUILD_DIR                                 # put binaries into this folder.
     ext.tmp_dir = BUILD_DIR                                   # temporary folder used during compilation.
     ext.cross_compile = true                                  # enable cross compilation (requires cross compile toolchain)
-    ext.cross_platform = %w[i386-mingw32 x64-mingw32]                     # forces the Windows platform instead of the default one
+    ext.cross_platform = Bundler::GemHelper.instance.cross_platforms
     ext.cross_compiling do |spec|
       spec.files.reject! { |path| File.fnmatch?('ext/*', path) }
     end
-  end
-
-  # To reduce the gem file size strip mingw32 dlls before packaging
-  ENV['RUBY_CC_VERSION'].to_s.split(':').each do |ruby_version|
-    task "build/i386-mingw32/stage/lib/#{ruby_version[/^\d+\.\d+/]}/ffi_c.so" do |t|
-      sh "i686-w64-mingw32-strip -S build/i386-mingw32/stage/lib/#{ruby_version[/^\d+\.\d+/]}/ffi_c.so"
-    end
 
-    task "build/x64-mingw32/stage/lib/#{ruby_version[/^\d+\.\d+/]}/ffi_c.so" do |t|
-      sh "x86_64-w64-mingw32-strip -S build/x64-mingw32/stage/lib/#{ruby_version[/^\d+\.\d+/]}/ffi_c.so"
-    end
   end
 else
   task :compile do
     STDERR.puts "Nothing to compile on #{RUBY_ENGINE}"
   end
 end
 
+
 desc "build a windows gem without all the ceremony"
 task "gem:windows" do
   require "rake_compiler_dock"
@@ -132,7 +124,7 @@ task :libffi => "ext/ffi_c/libffi/autogen.sh"
 
 LIBFFI_GIT_FILES = `git --git-dir ext/ffi_c/libffi/.git ls-files -z`.split("\x0")
 
-# Generate files in gemspec but not in libffi's git repo by running autogen.sh
+# Generate files which are in the gemspec but not in libffi's git repo by running autogen.sh
 gem_spec.files.select do |f|
   f =~ /ext\/ffi_c\/libffi\/(.*)/ && !LIBFFI_GIT_FILES.include?($1)
 end.each do |f|
@@ -148,6 +140,11 @@ end.each do |f|
   end
 end
 
+# Make sure we have all gemspec files before packaging
+task :build => gem_spec.files
+task :gem => :build
+
+
 require_relative "lib/ffi/platform"
 types_conf = File.expand_path(File.join(FFI::Platform::CONF_DIR, 'types.conf'))
 logfile = File.join(File.dirname(__FILE__), 'types_log')
@@ -168,10 +165,6 @@ end
 desc "Create or update type information for platform #{FFI::Platform::NAME}"
 task :types_conf => types_conf
 
-Gem::Tasks.new do |t|
-  t.scm.tag.format = '%s'
-end
-
 begin
   require 'yard'
 

rakelib/ffi_gem_helper.rb

@@ -0,0 +1,65 @@
+require 'bundler'
+require 'bundler/gem_helper'
+
+class FfiGemHelper < Bundler::GemHelper
+  attr_accessor :cross_platforms
+
+  def install
+    super
+
+    task "release:guard_clean" => ["release:update_history"]
+
+    task "release:update_history" do
+      update_history
+    end
+
+    task "release:rubygem_push" => ["gem:windows", "gem:java"]
+  end
+
+  def hfile
+    "CHANGELOG.md"
+  end
+
+  def headline
+    '([^\w]*)(\d+\.\d+\.\d+(?:\.\w+)?)([^\w]+)([2Y][0Y][0-9Y][0-9Y]-[0-1M][0-9M]-[0-3D][0-9D])([^\w]*|$)'
+  end
+
+  def reldate
+    Time.now.strftime("%Y-%m-%d")
+  end
+
+  def update_history
+    hin = File.read(hfile)
+    hout = hin.sub(/#{headline}/) do
+      raise "#{hfile} isn't up-to-date for version #{version}" unless $2==version.to_s
+      $1 + $2 + $3 + reldate + $5
+    end
+    if hout != hin
+      Bundler.ui.confirm "Updating #{hfile} for release."
+      File.write(hfile, hout)
+      Rake::FileUtilsExt.sh "git", "commit", hfile, "-m", "Update release date in #{hfile}"
+    end
+  end
+
+  def tag_version
+    Bundler.ui.confirm "Tag release with annotation:"
+    m = File.read(hfile).match(/(?<annotation>#{headline}.*?)#{headline}/m) || raise("Unable to find release notes in #{hfile}")
+    Bundler.ui.info(m[:annotation].gsub(/^/, "    "))
+    IO.popen(["git", "tag", "--file=-", version_tag], "w") do |fd|
+      fd.write m[:annotation]
+    end
+    yield if block_given?
+  rescue
+    Bundler.ui.error "Untagging #{version_tag} due to error."
+    sh_with_code "git tag -d #{version_tag}"
+    raise
+  end
+
+  def rubygem_push(path)
+    cross_platforms.each do |ruby_platform|
+      super(path.gsub(/\.gem\z/, "-#{ruby_platform}.gem"))
+    end
+    super(path.gsub(/\.gem\z/, "-java.gem"))
+    super(path)
+  end
+end