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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"
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