Class: Version

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/dpl/support/version.rb

Constant Summary collapse

InvalidVersion = 
Class.new(ArgumentError)
InvalidRequire = 
Class.new(ArgumentError)
MSGS = 
{
  version: 'Unable to parse version: %p',
  require: 'Unable to parse requirement: %p',
}
VERSION = 
/^(\d+)(?:\.(\d+))?(?:\.(\d+))?$/
REQUIRE = 
/^(~>|>|>=|=|!=|<=|<) (\d+(?:\.\d+)?(?:\.\d+)?)$/

Instance Method Summary collapse

Constructor Details

#initialize(str) ⇒ Version

Returns a new instance of Version.



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# File 'lib/dpl/support/version.rb', line 16

def initialize(str)
  @nums = split(str) || raise(InvalidVersion, MSGS[:version] % str)
end

Instance Method Details

#!=(other) ⇒ Object 



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# File 'lib/dpl/support/version.rb', line 40

def !=(other)
  trunc(other.size).to_a != other.to_a
end

#<=>(other) ⇒ Object 



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# File 'lib/dpl/support/version.rb', line 44

def <=>(other)
  to_a <=> other.to_a
end

#==(other) ⇒ Object 



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# File 'lib/dpl/support/version.rb', line 36

def ==(other)
  trunc(other.size).to_a == other.to_a
end

#bump ⇒ Object 



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# File 'lib/dpl/support/version.rb', line 54

def bump
  ix = nums[1] ? -2 : -1
  nums[ix] = nums[ix] + 1
  nums[-1] = nums[-1] = 0 if nums[1]
  self
end

#clone ⇒ Object 



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# File 'lib/dpl/support/version.rb', line 66

def clone
  Version.new(to_s)
end

#satisfies?(str) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dpl/support/version.rb', line 20

def satisfies?(str)
  send *parse(str) || raise(InvalidRequire, MSGS[:require] % str)
end

#size ⇒ Object 



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# File 'lib/dpl/support/version.rb', line 24

def size
  nums.size
end

#to_a ⇒ Object 



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# File 'lib/dpl/support/version.rb', line 28

def to_a
  nums
end

#to_s ⇒ Object 



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# File 'lib/dpl/support/version.rb', line 32

def to_s
  nums.join('.')
end

#trunc(size) ⇒ Object 



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# File 'lib/dpl/support/version.rb', line 61

def trunc(size)
  @nums = nums[0..size - 1]
  self
end