mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
25 lines
526 B
Ruby
Executable file
25 lines
526 B
Ruby
Executable file
#!ruby -an
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BEGIN {
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require 'fileutils'
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dir = ARGV.shift
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ARGF.eof?
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FileUtils.mkdir_p(dir)
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Dir.chdir(dir)
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}
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n, v, u = $F
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if File.directory?(n)
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puts "updating #{n} ..."
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system("git", (v == "master" ? "pull" : "fetch"), chdir: n) or abort
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else
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puts "retrieving #{n} ..."
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system(*%W"git clone #{u} #{n}") or abort
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end
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checkout = %w"git -c advice.detachedHead=false checkout"
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unless system(*checkout, v.sub(/\A(?=\d)/, 'v'), chdir: n)
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unless /\A\d/ =~ v and system(*checkout, v, chdir: n)
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abort
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end
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end
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