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module SemanticRange
VERSION = "3.0.0"
class Version
attr_reader :major, :minor, :patch, :prerelease
def initialize(version, loose: false)
@raw = version
@loose = loose
@raw = version.raw if version.is_a?(Version)
match = @raw.to_s.strip.match(loose ? LOOSE : FULL)
raise InvalidVersion.new(version) if match.nil?
if String(version.to_s).length > MAX_LENGTH
raise InvalidVersion.new("#{version} is too long")
end
@major = match[1] ? match[1].to_i : 0
@minor = match[2] ? match[2].to_i : 0
@patch = match[3] ? match[3].to_i : 0
@prerelease = PreRelease.new match[4]
@build = match[5] ? match[5].split('.') : []
end
def format
v = "#{@major}.#{@minor}.#{@patch}"
prerelease.length > 0 ? "#{v}-#{prerelease}" : v
end
def to_s
@version
end
def version
format
end
def raw
version
end
def compare(other)
other = Version.new(other, loose: @loose) unless other.is_a?(Version)
res = truthy(compare_main(other)) || truthy(compare_pre(other))
res.is_a?(FalseClass) ? 0 : res
end
def compare_main(other)
other = Version.new(other, loose: @loose) unless other.is_a?(Version)
truthy(self.class.compare_identifiers(@major, other.major)) ||
truthy(self.class.compare_identifiers(@minor, other.minor)) ||
truthy(self.class.compare_identifiers(@patch, other.patch))
end
def truthy(val)
return val unless val.is_a?(Integer)
val.zero? ? false : val
end
def compare_pre(other)
prerelease <=> other.prerelease
end
def self.compare_identifiers(a,b)
anum = /^[0-9]+$/.match(a.to_s)
bnum = /^[0-9]+$/.match(b.to_s)
if anum && bnum
a = a.to_i
b = b.to_i
end
return (anum && !bnum) ? -1 :
(bnum && !anum) ? 1 :
a < b ? -1 :
a > b ? 1 :
0;
end
def increment!(release, identifier)
case release
when 'premajor'
@prerelease.clear!
@patch = 0
@minor = 0
@major = @major + 1
increment! 'pre', identifier
when 'preminor'
@prerelease.clear!
@patch = 0
@minor = @minor + 1
increment! 'pre', identifier
when 'prepatch'
# If this is already a prerelease, it will bump to the next version
# drop any prereleases that might already exist, since they are not
# relevant at this point.
@prerelease.clear!
increment! 'patch', identifier
increment! 'pre', identifier
# If the input is a non-prerelease version, this acts the same as
# prepatch.
when 'prerelease'
if @prerelease.empty?
increment! 'patch', identifier
end
increment! 'pre', identifier
when 'major'
# If this is a pre-major version, bump up to the same major version.
# Otherwise increment major.
# 1.0.0-5 bumps to 1.0.0
# 1.1.0 bumps to 2.0.0
if @minor != 0 || @patch != 0 || @prerelease.empty?
@major = @major + 1
end
@minor = 0
@patch = 0
@prerelease.clear!
when 'minor'
# If this is a pre-minor version, bump up to the same minor version.
# Otherwise increment minor.
# 1.2.0-5 bumps to 1.2.0
# 1.2.1 bumps to 1.3.0
if @patch != 0 || @prerelease.empty?
@minor = @minor + 1
end
@patch = 0
@prerelease.clear!
when 'patch'
# If this is not a pre-release version, it will increment the patch.
# If it is a pre-release it will bump up to the same patch version.
# 1.2.0-5 patches to 1.2.0
# 1.2.0 patches to 1.2.1
if @prerelease.empty?
@patch = @patch + 1
end
@prerelease.clear!
# This probably shouldn't be used publicly.
# 1.0.0 "pre" would become 1.0.0-0 which is the wrong direction.
when 'pre'
@prerelease.increment!(identifier)
else
raise InvalidIncrement.new release
end
self
end
end
end
|
