Added rakelib

.gitignore

@@ -9,3 +9,5 @@
 *.bundle
 *.dll
 *.so
+ChangeLog
+logs/

io-wait.gemspec

@@ -1,6 +1,8 @@
+_VERSION = "0.1.0"
+
 Gem::Specification.new do |spec|
   spec.name          = "io-wait"
-  spec.version       = "0.1.0"
+  spec.version       = _VERSION
   spec.authors       = ["Nobu Nakada"]
   spec.email         = ["nobu@ruby-lang.org"]
 

rakelib/changelogs.rake

@@ -0,0 +1,34 @@
+task "build" => "changelogs"
+
+changelog = proc do |output, ver = nil, prev = nil|
+  ver &&= Gem::Version.new(ver)
+  range = [[prev], [ver, "HEAD"]].map {|ver, branch| ver ? "v#{ver.to_s}" : branch}.compact.join("..")
+  IO.popen(%W[git log --format=fuller --topo-order --no-merges #{range}]) do |log|
+    line = log.gets
+    FileUtils.mkpath(File.dirname(output))
+    File.open(output, "wb") do |f|
+      f.print "-*- coding: utf-8 -*-\n\n", line
+      log.each_line do |line|
+        line.sub!(/^(?!:)(?:Author|Commit)?(?:Date)?: /, '  \&')
+        line.sub!(/ +$/, '')
+        f.print(line)
+      end
+    end
+  end
+end
+
+tags = IO.popen(%w[git tag -l v[0-9]*]).grep(/v(.*)/) {$1}
+tags.sort_by! {|tag| tag.scan(/\d+/).map(&:to_i)}
+tags.inject(nil) do |prev, tag|
+  task("logs/ChangeLog-#{tag}") {|t| changelog[t.name, tag, prev]}
+  tag
+end
+
+desc "Make ChangeLog"
+task "ChangeLog", [:ver, :prev] do |t, ver: nil, prev: tags.last|
+  changelog[t.name, ver, prev]
+end
+
+changelogs = ["ChangeLog", *tags.map {|tag| "logs/ChangeLog-#{tag}"}]
+task "changelogs" => changelogs
+CLOBBER.concat(changelogs) << "logs"

rakelib/epoch.rake

@@ -0,0 +1,5 @@
+task "build" => "date_epoch"
+
+task "date_epoch" do
+  ENV["SOURCE_DATE_EPOCH"] = IO.popen(%W[git -C #{__dir__} log -1 --format=%ct], &:read).chomp
+end

rakelib/version.rake

@@ -0,0 +1,44 @@
+class << (helper = Bundler::GemHelper.instance)
+  def update_gemspec
+    path = gemspec.loaded_from
+    File.open(path, "r+b") do |f|
+      d = f.read
+      if d.sub!(/^(_VERSION\s*=\s*)".*"/) {$1 + gemspec.version.to_s.dump}
+        f.rewind
+        f.truncate(0)
+        f.print(d)
+      end
+    end
+  end
+
+  def commit_bump
+    sh(%W[git -C #{__dir__} commit -m bump\ up\ to\ #{gemspec.version}
+          #{gemspec.loaded_from}])
+  end
+
+  def version=(v)
+    gemspec.version = v
+    update_gemspec
+    commit_bump
+  end
+end
+
+major, minor, teeny = helper.gemspec.version.segments
+
+task "bump:teeny" do
+  helper.version = Gem::Version.new("#{major}.#{minor}.#{teeny+1}")
+end
+
+task "bump:minor" do
+  helper.version = Gem::Version.new("#{major}.#{minor+1}.0")
+end
+
+task "bump:major" do
+  helper.version = Gem::Version.new("#{major+1}.0.0")
+end
+
+task "bump" => "bump:teeny"
+
+task "tag" do
+  helper.__send__(:tag_version)
+end