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# Copyright 2009 Max Howell and other contributors.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
require 'pathname'
# we enhance pathname to make our code more readable
class Pathname
def install src
if src.is_a? Array
src.collect {|src| install src }
else
raise "#{src} does not exist" unless File.exist? src
mkpath
if File.symlink? src
# we use the BSD mv command because FileUtils copies the target and
# not the link! I'm beginning to wish I'd used Python quite honestly!
raise unless Kernel.system 'mv', src, to_s and $? == 0
else
# we mv when possible as it is faster and you should only be using
# this function when installing from the temporary build directory
FileUtils.mv src, to_s
end
src=Pathname.new src
return self+src.basename
end
end
# we assume this pathname object is a file obviously
def write content
raise "Will not overwrite #{to_s}" if exist? and not ARGV.force?
dirname.mkpath
File.open(self, 'w') {|f| f.write content }
end
def cp dst
if file?
FileUtils.cp to_s, dst
else
FileUtils.cp_r to_s, dst
end
return dst
end
# extended to support the double extensions .tar.gz and .tar.bz2
def extname
/(\.tar\.(gz|bz2))$/.match to_s
return $1 if $1
return File.extname(to_s)
end
# for filetypes we support, basename without extension
def stem
return File.basename(to_s, extname)
end
# I don't trust the children.length == 0 check particularly, not to mention
# it is slow to enumerate the whole directory just to see if it is empty,
# instead rely on good ol' libc and the filesystem
def rmdir_if_possible
rmdir
true
rescue SystemCallError => e
raise unless e.errno == Errno::ENOTEMPTY::Errno or e.errno == Errno::EACCES::Errno
false
end
def chmod_R perms
require 'fileutils'
FileUtils.chmod_R perms, to_s
end
def abv
out=''
n=`find #{to_s} -type f | wc -l`.to_i
out<<"#{n} files, " if n > 1
out<<`du -hd0 #{to_s} | cut -d"\t" -f1`.strip
end
# attempts to retrieve the version component of this path, so generally
# you'll call it on tarballs or extracted tarball directories, if you add
# to this please provide amend the unittest
def version
if directory?
# directories don't have extnames
stem=basename.to_s
else
stem=self.stem
end
# github tarballs are special
# we only support numbered tagged downloads
%r[github.com/.*/tarball/((\d\.)+\d)$].match to_s
return $1 if $1
# eg. boost_1_39_0
/((\d+_)+\d+)$/.match stem
return $1.gsub('_', '.') if $1
# eg. foobar-4.5.1-1
# eg. ruby-1.9.1-p243
/-((\d+\.)*\d\.\d+-(p|rc)?\d+)$/.match stem
return $1 if $1
# eg. lame-398-1
/-((\d)+-\d)/.match stem
return $1 if $1
# eg. foobar-4.5.1
/-((\d+\.)*\d+)$/.match stem
return $1 if $1
# eg. foobar-4.5.1b
/-((\d+\.)*\d+([abc]|rc\d))$/.match stem
return $1 if $1
# eg foobar-4.5.0-beta1
/-((\d+\.)*\d+-beta\d+)$/.match stem
return $1 if $1
# eg. foobar4.5.1
/((\d+\.)*\d+)$/.match stem
return $1 if $1
# eg foobar-4.5.0-bin
/-((\d+\.)+\d+[abc]?)[-.](bin|src|sources)$/.match stem
return $1 if $1
# eg. otp_src_R13B (this is erlang's style)
# eg. astyle_1.23_macosx.tar.gz
stem.scan /_([^_]+)/ do |match|
return match.first if /\d/.match $1
end
nil
end
if '1.9' <= RUBY_VERSION
alias_method :to_str, :to_s
end
end
# sets $n and $d so you can observe creation of stuff
module ObserverPathnameExtension
def unlink
super
puts "rm #{to_s}" if ARGV.verbose?
$n+=1
end
def rmdir
super
puts "rmdir #{to_s}" if ARGV.verbose?
$d+=1
end
def resolved_path_exists?
(dirname+readlink).exist?
end
def mkpath
super
puts "mkpath #{to_s}" if ARGV.verbose?
$d+=1
end
def make_relative_symlink src
dirname.mkpath
Dir.chdir dirname do
# TODO use Ruby function so we get exceptions
# NOTE Ruby functions may work, but I had a lot of problems
rv=system 'ln', '-sf', src.relative_path_from(dirname)
raise "Could not create symlink #{to_s}" unless rv and $? == 0
puts "ln #{to_s}" if ARGV.verbose?
$n+=1
end
end
end
$n=0
$d=0
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