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Move download strategies into their own file
This commit is contained in:
Max Howell
parent
e7594de797
commit
72bde8c583
@ -17,6 +17,7 @@
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#
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require 'osx/cocoa' # to get number of cores
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require 'formula'
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require 'download_strategy'
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require 'hw.model'
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ENV['MACOSX_DEPLOYMENT_TARGET']='10.5'
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109
Library/Homebrew/download_strategy.rb
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109
Library/Homebrew/download_strategy.rb
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@ -0,0 +1,109 @@
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# Copyright 2009 Max Howell <max@methylblue.com>
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#
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# This file is part of Homebrew.
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#
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# Homebrew is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Homebrew is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Homebrew. If not, see <http://www.gnu.org/licenses/>.
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#
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class AbstractDownloadStrategy
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def initialize url, name, version
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@url=url
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@unique_token="#{name}-#{version}"
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end
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end
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class HttpDownloadStrategy <AbstractDownloadStrategy
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def fetch
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ohai "Downloading #{@url}"
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@dl=HOMEBREW_CACHE+(@unique_token+ext)
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unless @dl.exist?
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curl @url, '-o', @dl
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else
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puts "File already downloaded and cached"
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end
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return @dl # thus performs checksum verification
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end
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def stage
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case `file -b #{@dl}`
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when /^Zip archive data/
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safe_system 'unzip', '-qq', @dl
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chdir
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when /^(gzip|bzip2) compressed data/
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# TODO do file -z now to see if it is in fact a tar
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safe_system 'tar', 'xf', @dl
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chdir
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else
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# we are assuming it is not an archive, use original filename
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# this behaviour is due to ScriptFileFormula expectations
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@dl.mv File.basename(@url)
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end
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end
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private
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def chdir
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entries=Dir['*']
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case entries.length
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when 0 then raise "Empty archive"
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when 1 then Dir.chdir entries.first rescue nil
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end
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end
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def ext
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# GitHub uses odd URLs for zip files, so check for those
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rx=%r[http://(www\.)?github\.com/.*/(zip|tar)ball/]
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if rx.match @url
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if $2 == 'zip'
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'.zip'
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else
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'.tgz'
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end
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else
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Pathname.new(@url).extname
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end
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end
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end
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class SubversionDownloadStrategy <AbstractDownloadStrategy
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def fetch
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ohai "Checking out #{@url}"
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@co=HOMEBREW_CACHE+@unique_token
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unless @co.exist?
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safe_system 'svn', 'checkout', @url, @co
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else
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# TODO svn up?
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puts "Repository already checked out"
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end
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end
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def stage
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# Force the export, since the target directory will already exist
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safe_system 'svn', 'export', '--force', @co, Dir.pwd
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end
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end
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class GitDownloadStrategy <AbstractDownloadStrategy
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def fetch
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ohai "Cloning #{@url}"
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@clone=HOMEBREW_CACHE+@unique_token
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unless @clone.exist?
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safe_system 'git', 'clone', @url, @clone
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else
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# TODO git pull?
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puts "Repository already cloned"
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end
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end
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def stage
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dst=Dir.getwd
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Dir.chdir @clone do
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# http://stackoverflow.com/questions/160608/how-to-do-a-git-export-like-svn-export
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safe_system 'git', 'checkout-index', '-af', "--prefix=#{dst}"
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end
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end
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end
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@ -14,110 +14,14 @@
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#
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# You should have received a copy of the GNU General Public License
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# along with Homebrew. If not, see <http://www.gnu.org/licenses/>.
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class AbstractDownloadStrategy
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def initialize url, name, version
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@url=url
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@unique_token="#{name}-#{version}"
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end
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end
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class HttpDownloadStrategy <AbstractDownloadStrategy
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def fetch
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ohai "Downloading #{@url}"
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@dl=HOMEBREW_CACHE+(@unique_token+ext)
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unless @dl.exist?
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curl @url, '-o', @dl
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else
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puts "File already downloaded and cached"
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end
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return @dl # thus performs checksum verification
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end
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def stage
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case `file -b #{@dl}`
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when /^Zip archive data/
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safe_system 'unzip', '-qq', @dl
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chdir
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when /^(gzip|bzip2) compressed data/
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# TODO do file -z now to see if it is in fact a tar
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safe_system 'tar', 'xf', @dl
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chdir
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else
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# we are assuming it is not an archive, use original filename
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# this behaviour is due to ScriptFileFormula expectations
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@dl.mv File.basename(@url)
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end
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end
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private
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def chdir
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entries=Dir['*']
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case entries.length
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when 0 then raise "Empty archive"
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when 1 then Dir.chdir entries.first rescue nil
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end
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end
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def ext
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# GitHub uses odd URLs for zip files, so check for those
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rx=%r[http://(www\.)?github\.com/.*/(zip|tar)ball/]
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if rx.match @url
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if $2 == 'zip'
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'.zip'
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else
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'.tgz'
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end
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else
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Pathname.new(@url).extname
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end
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end
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end
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class SubversionDownloadStrategy <AbstractDownloadStrategy
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def fetch
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ohai "Checking out #{@url}"
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@co=HOMEBREW_CACHE+@unique_token
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unless @co.exist?
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safe_system 'svn', 'checkout', @url, @co
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else
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# TODO svn up?
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puts "Repository already checked out"
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end
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end
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def stage
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# Force the export, since the target directory will already exist
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safe_system 'svn', 'export', '--force', @co, Dir.pwd
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end
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end
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class GitDownloadStrategy <AbstractDownloadStrategy
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def fetch
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ohai "Cloning #{@url}"
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@clone=HOMEBREW_CACHE+@unique_token
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unless @clone.exist?
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safe_system 'git', 'clone', @url, @clone
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else
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# TODO git pull?
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puts "Repository already cloned"
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end
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end
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def stage
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dst=Dir.getwd
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Dir.chdir @clone do
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# http://stackoverflow.com/questions/160608/how-to-do-a-git-export-like-svn-export
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safe_system 'git', 'checkout-index', '-af', "--prefix=#{dst}"
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end
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end
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end
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#
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class ExecutionError <RuntimeError
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def initialize cmd, args=[]
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super "#{cmd} #{args*' '}"
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end
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end
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class BuildError <ExecutionError; end
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class BuildError <ExecutionError
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end
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class FormulaUnavailableError <RuntimeError
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def initialize name
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super "No available formula for #{name}"
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@ -2,6 +2,7 @@
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$:.unshift File.dirname(__FILE__)
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require 'pathname+yeast'
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require 'formula'
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require 'download_strategy'
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require 'keg'
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require 'utils'
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