brew/Library/Homebrew/formula_support.rb
Mike McQuaid 0f9910d352 Relocate bottles using install_name_tool.
This has two parts:

1. Bottles are temporarily relocated on bottling and tested if that is
sufficient for them to contain no longer reference the prefix or
cellar. If so, they are marked as relocatable.
2. On installation if bottles are marked as relocatable they will be
relocated using install_name_tool to the current prefix and cellar.

Closes Homebrew/homebrew#18374.
2013-03-11 18:58:37 +00:00

171 lines
3.8 KiB
Ruby

require 'download_strategy'
require 'checksums'
require 'version'
class SoftwareSpec
attr_reader :checksum, :mirrors, :specs
def initialize url=nil, version=nil
@url = url
@version = version
@mirrors = []
@specs = {}
end
def download_strategy
@download_strategy ||= DownloadStrategyDetector.detect(@url, @using)
end
def verify_download_integrity fn
fn.verify_checksum @checksum
rescue ChecksumMissingError
opoo "Cannot verify package integrity"
puts "The formula did not provide a download checksum"
puts "For your reference the SHA1 is: #{fn.sha1}"
rescue ChecksumMismatchError => e
e.advice = <<-EOS.undent
Archive: #{fn}
(To retry an incomplete download, remove the file above.)
EOS
raise e
end
# The methods that follow are used in the block-form DSL spec methods
Checksum::TYPES.each do |cksum|
class_eval %Q{
def #{cksum}(val=nil)
if val.nil?
@checksum if @checksum.nil? or @checksum.hash_type == :#{cksum}
else
@checksum = Checksum.new(:#{cksum}, val)
end
end
}
end
def url val=nil, specs={}
return @url if val.nil?
@url = val
@using = specs.delete(:using)
@specs.merge!(specs)
end
def version val=nil
@version ||= case val
when nil then Version.parse(@url)
when Hash
key, value = val.shift
scheme = VersionSchemeDetector.new(value).detect
scheme.new(key)
else Version.new(val)
end
end
def mirror val
@mirrors ||= []
@mirrors << val
end
end
class HeadSoftwareSpec < SoftwareSpec
def initialize url=nil, version=Version.new(:HEAD)
super
end
def verify_download_integrity fn
return
end
end
class Bottle < SoftwareSpec
attr_writer :url
# TODO: Can be removed when all bottles migrated to underscored cat symbols.
attr_reader :cat_without_underscores
def initialize
super
@revision = 0
@prefix = '/usr/local'
@cellar = '/usr/local/Cellar'
@cat_without_underscores = false
end
# Checksum methods in the DSL's bottle block optionally take
# a Hash, which indicates the platform the checksum applies on.
Checksum::TYPES.each do |cksum|
class_eval %Q{
def #{cksum}(val=nil)
@#{cksum} ||= Hash.new
case val
when nil
@#{cksum}[MacOS.cat]
when Hash
key, value = val.shift
@#{cksum}[value] = Checksum.new(:#{cksum}, key)
end
if @#{cksum}.has_key? MacOS.cat
@checksum = @#{cksum}[MacOS.cat]
elsif @#{cksum}.has_key? MacOS.cat_without_underscores
@checksum = @#{cksum}[MacOS.cat_without_underscores]
@cat_without_underscores = true
end
end
}
end
def root_url val=nil
val.nil? ? @root_url : @root_url = val
end
def prefix val=nil
val.nil? ? @prefix : @prefix = val
end
def cellar val=nil
val.nil? ? @cellar : @cellar = val
end
def revision val=nil
val.nil? ? @revision : @revision = val
end
end
# Used to annotate formulae that duplicate OS X provided software
# or cause conflicts when linked in.
class KegOnlyReason
attr_reader :reason, :explanation
def initialize reason, explanation=nil
@reason = reason
@explanation = explanation
@valid = case @reason
when :provided_pre_mountain_lion then MacOS.version < :mountain_lion
else true
end
end
def valid?
@valid
end
def to_s
case @reason
when :provided_by_osx then <<-EOS.undent
Mac OS X already provides this software and installing another version in
parallel can cause all kinds of trouble.
#{@explanation}
EOS
when :provided_pre_mountain_lion then <<-EOS.undent
Mac OS X already provides this software in versions before Mountain Lion.
#{@explanation}
EOS
else
@reason
end.strip
end
end