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# Define a package task library to aid in the definition of
# redistributable package files.
require 'rake'
require 'rake/tasklib'
module Rake
# Create a packaging task that will package the project into
# distributable files (e.g zip archive or tar files).
#
# The PackageTask will create the following targets:
#
# +:package+ ::
# Create all the requested package files.
#
# +:clobber_package+ ::
# Delete all the package files. This target is automatically
# added to the main clobber target.
#
# +:repackage+ ::
# Rebuild the package files from scratch, even if they are not out
# of date.
#
# <tt>"<em>package_dir</em>/<em>name</em>-<em>version</em>.tgz"</tt> ::
# Create a gzipped tar package (if <em>need_tar</em> is true).
#
# <tt>"<em>package_dir</em>/<em>name</em>-<em>version</em>.tar.gz"</tt> ::
# Create a gzipped tar package (if <em>need_tar_gz</em> is true).
#
# <tt>"<em>package_dir</em>/<em>name</em>-<em>version</em>.tar.bz2"</tt> ::
# Create a bzip2'd tar package (if <em>need_tar_bz2</em> is true).
#
# <tt>"<em>package_dir</em>/<em>name</em>-<em>version</em>.zip"</tt> ::
# Create a zip package archive (if <em>need_zip</em> is true).
#
# Example:
#
# Rake::PackageTask.new("rake", "1.2.3") do |p|
# p.need_tar = true
# p.package_files.include("lib/**/*.rb")
# end
#
class PackageTask < TaskLib
# Name of the package (from the GEM Spec).
attr_accessor :name
# Version of the package (e.g. '1.3.2').
attr_accessor :version
# Directory used to store the package files (default is 'pkg').
attr_accessor :package_dir
# True if a gzipped tar file (tgz) should be produced (default is
# false).
attr_accessor :need_tar
# True if a gzipped tar file (tar.gz) should be produced (default
# is false).
attr_accessor :need_tar_gz
# True if a bzip2'd tar file (tar.bz2) should be produced (default
# is false).
attr_accessor :need_tar_bz2
# True if a zip file should be produced (default is false)
attr_accessor :need_zip
# List of files to be included in the package.
attr_accessor :package_files
# Tar command for gzipped or bzip2ed archives. The default is 'tar'.
attr_accessor :tar_command
# Zip command for zipped archives. The default is 'zip'.
attr_accessor :zip_command
# Create a Package Task with the given name and version. Use +:noversion+
# as the version to build a package without a version or to provide a
# fully-versioned package name.
def initialize(name=nil, version=nil)
init(name, version)
yield self if block_given?
define unless name.nil?
end
# Initialization that bypasses the "yield self" and "define" step.
def init(name, version)
@name = name
@version = version
@package_files = Rake::FileList.new
@package_dir = 'pkg'
@need_tar = false
@need_tar_gz = false
@need_tar_bz2 = false
@need_zip = false
@tar_command = 'tar'
@zip_command = 'zip'
end
# Create the tasks defined by this task library.
def define
fail "Version required (or :noversion)" if @version.nil?
@version = nil if :noversion == @version
desc "Build all the packages"
task :package
desc "Force a rebuild of the package files"
task :repackage => [:clobber_package, :package]
desc "Remove package products"
task :clobber_package do
rm_r package_dir rescue nil
end
task :clobber => [:clobber_package]
[
[need_tar, tgz_file, "z"],
[need_tar_gz, tar_gz_file, "z"],
[need_tar_bz2, tar_bz2_file, "j"]
].each do |(need, file, flag)|
if need
task :package => ["#{package_dir}/#{file}"]
file "#{package_dir}/#{file}" =>
[package_dir_path] + package_files do
chdir(package_dir) do
sh @tar_command, "#{flag}cvf", file, package_name
end
end
end
end
if need_zip
task :package => ["#{package_dir}/#{zip_file}"]
file "#{package_dir}/#{zip_file}" =>
[package_dir_path] + package_files do
chdir(package_dir) do
sh @zip_command, "-r", zip_file, package_name
end
end
end
directory package_dir_path => @package_files do
@package_files.each do |fn|
f = File.join(package_dir_path, fn)
fdir = File.dirname(f)
mkdir_p(fdir) unless File.exist?(fdir)
if File.directory?(fn)
mkdir_p(f)
else
rm_f f
safe_ln(fn, f)
end
end
end
self
end
# The name of this package
def package_name
@version ? "#{@name}-#{@version}" : @name
end
# The directory this package will be built in
def package_dir_path
"#{package_dir}/#{package_name}"
end
# The package name with .tgz added
def tgz_file
"#{package_name}.tgz"
end
# The package name with .tar.gz added
def tar_gz_file
"#{package_name}.tar.gz"
end
# The package name with .tar.bz2 added
def tar_bz2_file
"#{package_name}.tar.bz2"
end
# The package name with .zip added
def zip_file
"#{package_name}.zip"
end
end
end
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