Class: RunLoop::Version

Inherits:
Object
  • Object
show all
Defined in:
lib/run_loop/version.rb

Overview

A model of a software release version that can be used to compare two versions.

Calabash and RunLoop try very hard to comply with Semantic Versioning rules. However, the semantic versioning spec is incompatible with RubyGem's patterns for pre-release gems.

> “But returning to the practical: No release version of SemVer is compatible with Rubygems.” - _David Kellum_

Calabash and RunLoop version numbers will be in the form `<

See Also:

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(version) ⇒ Version

Creates a new Version instance with all the attributes set.

Examples:

version = Version.new(0.10.1)
version.major       => 0
version.minor       => 10
version.patch       => 1
version.pre         => false
version.pre_version => nil
version = Version.new(1.6.3.pre5)
version.major       => 1
version.minor       => 6
version.patch       => 3
version.pre         => true
version.pre_version => 5

Raises:

  • (ArgumentError)

    if version is not in the form 5, 6.1, 7.1.2, 8.2.3.pre1


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# File 'lib/run_loop/version.rb', line 59

def initialize(version)
  tokens = version.strip.split('.')
  count = tokens.count
  if tokens.empty?
    raise ArgumentError, "expected '#{version}' to be like 5, 6.1, 7.1.2, 8.2.3.pre1"
  end

  if count < 4 and tokens.any? { |elm| elm =~ /\D/ }
    raise ArgumentError, "expected '#{version}' to be like 5, 6.1, 7.1.2, 8.2.3.pre1"
  end

  if count == 4
    @pre = tokens[3]
    pre_tokens = @pre.scan(/\D+|\d+/)
    @pre_version = pre_tokens[1].to_i if pre_tokens.count == 2
  end

  @major, @minor, @patch = version.split('.').map(&:to_i)
end

Instance Attribute Details

#majorInteger


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# File 'lib/run_loop/version.rb', line 20

def major
  @major
end

#minorInteger


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# File 'lib/run_loop/version.rb', line 24

def minor
  @minor
end

#patchInteger


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# File 'lib/run_loop/version.rb', line 28

def patch
  @patch
end

#preBoolean


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# File 'lib/run_loop/version.rb', line 32

def pre
  @pre
end

#pre_versionInteger


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# File 'lib/run_loop/version.rb', line 37

def pre_version
  @pre_version
end

Class Method Details

.compare(a, b) ⇒ Integer

Compare version `a` to version `b`.

Examples:

compare Version.new(0.10.0), Version.new(0.9.0)  =>  1
compare Version.new(0.9.0),  Version.new(0.10.0) => -1
compare Version.new(0.9.0),  Version.new(0.9.0)  =>  0

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# File 'lib/run_loop/version.rb', line 153

def self.compare(a, b)

  if a.major != b.major
    return a.major > b.major ? 1 : -1
  end

  if a.minor != b.minor
    return a.minor.to_i  > b.minor.to_i ? 1 : -1
  end

  if a.patch != b.patch
    return a.patch.to_i > b.patch.to_i ? 1 : -1
  end

  return -1 if a.pre and (not a.pre_version) and b.pre_version
  return 1 if a.pre_version and b.pre and (not b.pre_version)

  return -1 if a.pre and (not b.pre)
  return 1 if (not a.pre) and b.pre

  return -1 if a.pre_version and (not b.pre_version)
  return 1 if (not a.pre_version) and b.pre_version

  if a.pre_version != b.pre_version
    return a.pre_version.to_i > b.pre_version.to_i ? 1 : -1
  end
  0
end

Instance Method Details

#!=(other) ⇒ Boolean

Compare this version to another for inequality.


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# File 'lib/run_loop/version.rb', line 113

def != (other)
  Version.compare(self, other) != 0
end

#<(other) ⇒ Boolean

Is this version less-than another version?


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# File 'lib/run_loop/version.rb', line 120

def < (other)
  Version.compare(self, other) < 0
end

#<=(other) ⇒ Boolean

Is this version less-than or equal to another version?


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# File 'lib/run_loop/version.rb', line 134

def <= (other)
  Version.compare(self, other) <= 0
end

#==(other) ⇒ Boolean

Compare this version to another for equality.


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# File 'lib/run_loop/version.rb', line 106

def == (other)
  Version.compare(self, other) == 0
end

#>(other) ⇒ Boolean

Is this version greater-than another version?


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# File 'lib/run_loop/version.rb', line 127

def > (other)
  Version.compare(self, other) > 0
end

#>=(other) ⇒ Boolean

Is this version greater-than or equal to another version?


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# File 'lib/run_loop/version.rb', line 141

def >= (other)
  Version.compare(self, other) >= 0
end

#eql?(other) ⇒ Boolean

Compare this version to another for object equality. This allows Version instances to be used as Hash keys.


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# File 'lib/run_loop/version.rb', line 94

def eql?(other)
  hash == other.hash
end

#hashObject

The hash method for this instance.


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# File 'lib/run_loop/version.rb', line 99

def hash
  to_s.hash
end

#inspectObject


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# File 'lib/run_loop/version.rb', line 87

def inspect
  "#<Version #{to_s}>"
end

#to_sString

Returns an string representation of this version.


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# File 'lib/run_loop/version.rb', line 81

def to_s
  str = [major, minor, patch].compact.join('.')
  str = "#{str}.#{pre}" if pre
  str
end