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module Bundler::PubGrub
module RubyGems
extend self
def requirement_to_range(requirement)
ranges = requirement.requirements.map do |(op, ver)|
case op
when "~>"
name = "~> #{ver}"
bump = ver.class.new(ver.bump.to_s + ".A")
VersionRange.new(name: name, min: ver, max: bump, include_min: true)
when ">"
VersionRange.new(min: ver)
when ">="
VersionRange.new(min: ver, include_min: true)
when "<"
VersionRange.new(max: ver)
when "<="
VersionRange.new(max: ver, include_max: true)
when "="
VersionRange.new(min: ver, max: ver, include_min: true, include_max: true)
when "!="
VersionRange.new(min: ver, max: ver, include_min: true, include_max: true).invert
else
raise "bad version specifier: #{op}"
end
end
ranges.inject(&:intersect)
end
def requirement_to_constraint(package, requirement)
Bundler::PubGrub::VersionConstraint.new(package, range: requirement_to_range(requirement))
end
def parse_range(dep)
requirement_to_range(Gem::Requirement.new(dep))
end
def parse_constraint(package, dep)
range = parse_range(dep)
Bundler::PubGrub::VersionConstraint.new(package, range: range)
end
end
end
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