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module RubyTools
# use provided ruby.exe to figure out runtime information
def self.parse_ruby(ruby_exe)
result = `#{ruby_exe} -rrbconfig -ve \"puts 'ruby_version: %s' % RbConfig::CONFIG['ruby_version']\"`
return nil unless $?.success?
return nil if result.empty?
h = {}
if result =~ /(\d\.\d.\d)/
h[:version] = $1
end
if result =~ /patchlevel (\d+)/
h[:patchlevel] = $1
end
if result =~ /\dp(\d+)/
h[:patchlevel] = $1
end
if result =~ /ruby_version: (\S+)/
h[:lib_version] = $1
end
if result =~ /\[(\S+)\]/
h[:platform] = $1
end
if result =~ /trunk (\d+)/
h[:revision] = $1
end
if result =~ /(\d+-\d+-\d+)/
h[:release_date] = $1
end
# construct either X.Y.Z-p123 or X.Y.Z-rNNNN (dev)
version_human = h[:version].dup
if h[:patchlevel]
version_human << "-p%s" % h[:patchlevel]
else
version_human << "-r%s" % h[:revision]
end
h[:version_human] = version_human
major_minor = h[:version][0..2]
namespace_version = major_minor.sub('.', '')
h[:namespace_version] = namespace_version
h
end
end
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