Update-Installer/tools/create-packages.rb
Robert Knight 09b3b2f43a Switch to using Unix chmod values for file permissions instead of values from Qt's QFile::Permission enum
The use of QFile::Permission flag values is a legacy from the old Qt-based updater.
Unix chmod values are used by the native system calls so it makes more sense
to use them instead.

 * Update the test examples and the test update script.
 * Update the package building tool to populate the permissions field with octal chmod values.
2011-09-04 14:53:51 +01:00

397 lines
11 KiB
Ruby
Executable file

#!/usr/bin/ruby
require 'fileutils'
require 'rubygems'
require 'find'
require 'json'
require 'rexml/document'
require 'optparse'
# syntax:
#
# create-packages.rb <input directory> <config file> <output directory>
#
# Takes the set of files that make up a release and splits them up into
# a set of .zip packages along with a file_list.xml file listing all
# the files in the release and mapping them to their respective
# packages.
#
# Outputs:
#
# <output-dir>/$PACKAGE_NAME.zip
# These are packages containing the files in this version of the software.
#
# <output-dir>/file_list.xml
# This file lists all the files contained in this version of the software and
# the packages which they are contained in.
#
# <output-dir>/$UPDATER_BINARY
# The standalone auto-update installer binary. This is not compressed so that
# it can be downloaded and executed directly.
#
# Represents a group of updates in a release
class UpdateScriptPackage
# name - The name of the package (without any extension)
# hash - The SHA-1 hash of the package
# size - The size of the package in bytes
attr_reader :name,:hash,:size
attr_writer :name,:hash,:size
end
# Represents a single file in a release
class UpdateScriptFile
# path - The path of the file relative to the installation directory
# hash - The SHA-1 hash of the file
# permissions - The permissions of the file (See File::stat)
# size - The size of the file in bytes
# package - The name of the package containing this file
attr_reader :path,:hash,:permissions,:size,:package,:target,:is_main_binary
attr_writer :path,:hash,:permissions,:size,:package,:target,:is_main_binary
end
# Utility method - convert a hash map to an REXML element
#
# Hash keys are converted to elements and hash values either
# to text contents or child elements (if the value is a Hash)
#
# 'root' - the root REXML::Element
# 'map' - a hash mapping element names to text contents or
# hash maps
#
def hash_to_xml(root,map)
map.each do |key,value|
element = REXML::Element.new(key)
if value.instance_of?(String)
element.text = value
elsif value.instance_of?(Hash)
hash_to_xml(element,value)
elsif !value.nil?
raise "Unsupported value type #{value.class}"
end
root.add_element element
end
return root
end
def strip_prefix(string,prefix)
if (!string.start_with?(prefix))
raise "String does not start with prefix"
end
return string.sub(prefix,"")
end
def file_sha1(path)
return `sha1sum "#{path}"`.split(' ')[0]
end
class UpdateScriptGenerator
# target_version - The version string for the build in this update
# platform - The platform which this build is for
# input_dir - The directory containing files that make up the install
# output_dir - The directory containing the generated packages
# package_config - The PackageConfig specifying the file -> package map
# for the application and other config options
# file_list - A list of all files in 'input_dir' which make up the install
# package_file_map - A map of (package name -> [paths of files in this package])
def initialize(target_version,
platform,
input_dir,
output_dir,
package_config,
file_list,
package_file_map)
@target_version = target_version
@platform = platform
@config = package_config
# List of files to install in this version
@files_to_install = []
file_list.each do |path|
file = UpdateScriptFile.new
file.path = strip_prefix(path,input_dir)
if (File.basename(path) == @config.updater_binary)
# for the updater binary, use the possibly substituted
# version in the output directory
path = "#{output_dir}/#{@config.updater_binary}"
end
file.is_main_binary = (file.path == package_config.main_binary)
if (File.symlink?(path))
file.target = File.readlink(path)
else
file.hash = file_sha1(path)
file.permissions = File.stat(path).mode
file.size = File.size(path)
file.package = @config.package_for_file(file.path)
if (!file.package)
raise "Could not find package for file #{file.path}"
end
end
@files_to_install << file
end
# List of packages containing files for this version
@packages = []
package_file_map.each do |package_name,files|
if (package_name == @config.updater_binary)
path = "#{output_dir}/#{package_name}"
else
path = "#{output_dir}/#{package_name}.zip"
end
package = UpdateScriptPackage.new
package.name = package_name
package.size = File.size(path)
package.hash = file_sha1(path)
@packages << package
end
end
def to_xml()
doc = REXML::Document.new
update_elem = REXML::Element.new("update")
doc.add_element update_elem
version_elem = REXML::Element.new("targetVersion")
version_elem.text = @target_version
platform_elem = REXML::Element.new("platform")
platform_elem.text = @platform
update_elem.add_attribute("version","3")
update_elem.add_element version_elem
update_elem.add_element platform_elem
update_elem.add_element deps_to_xml()
update_elem.add_element packages_to_xml()
update_elem.add_element install_to_xml()
output = ""
doc.write output
return output
end
def deps_to_xml()
deps_elem = REXML::Element.new("dependencies")
deps = @config.updater_binary
deps.each do |dependency|
dep_elem = REXML::Element.new("file")
dep_elem.text = dependency
deps_elem.add_element dep_elem
end
return deps_elem
end
def packages_to_xml()
packages_elem = REXML::Element.new("packages")
@packages.each do |package|
package_elem = REXML::Element.new("package")
packages_elem.add_element package_elem
hash_to_xml(package_elem,{
"name" => package.name,
"size" => package.size.to_s,
"hash" => package.hash
})
end
return packages_elem
end
def install_to_xml()
install_elem = REXML::Element.new("install")
@files_to_install.each do |file|
file_elem = REXML::Element.new("file")
install_elem.add_element(file_elem)
attributes = {"name" => file.path}
if (file.target)
attributes["target"] = file.target
else
attributes["size"] = file.size.to_s
attributes["permissions"] = file_mode_string(file.permissions)
attributes["hash"] = file.hash
attributes["package"] = file.package
end
if (file.is_main_binary)
attributes["is-main-binary"] = "true"
end
hash_to_xml(file_elem,attributes)
end
return install_elem
end
def file_mode_string(mode)
mode_octal = (mode & 0777).to_s(8)
return "0#{mode_octal}"
end
end
class PackageConfig
attr_reader :main_binary, :updater_binary
def initialize(map_file)
@rule_map = {}
config_json = JSON.parse(File.read(map_file))
config_json["packages"].each do |package,rules|
rules.each do |rule|
rule_regex = Regexp.new("^#{rule}")
@rule_map[rule_regex] = package
end
end
@main_binary = config_json["main-binary"]
@updater_binary = config_json["updater-binary"]
end
def is_updater(file)
return File.basename(file) == @updater_binary
end
def package_for_file(file)
match = nil
@rule_map.each do |rule,package|
if (file =~ rule)
if match && match != package
raise "Multiple packages match file #{file} - found '#{match}' and '#{package}'"
end
match = package
end
end
return match
end
end
updater_binary_input_path = nil
target_version = nil
target_platform = nil
OptionParser.new do |parser|
parser.banner = "#{$0} [options] <input dir> <config file> <output dir>"
parser.on("-u","--updater [updater binary]","Specifies the updater binary to use") do |updater|
updater_binary_input_path = updater
end
parser.on("-v","--version [version]","Specifies the target version string for this update") do |version|
target_version = version
end
parser.on("-p","--platform [platform]","Specifies the target platform for this update") do |platform|
target_platform = platform
end
end.parse!
raise "Platform not specified (use -p option)" if !target_platform
raise "Target version not specified (use -v option)" if !target_version
if ARGV.length < 3
raise "Missing arguments"
end
input_dir = ARGV[0]
package_map_file = ARGV[1]
output_dir = ARGV[2]
FileUtils.mkpath(output_dir)
# get the details of each input file
input_file_list = []
Find.find(input_dir) do |path|
next if (File.directory?(path) && !File.symlink?(path))
input_file_list << path
end
# map each input file to a corresponding package
# read the package map
package_config = PackageConfig.new(package_map_file)
# map of package name -> array of files
package_file_map = {}
input_file_list.each do |file|
next if File.symlink?(file)
relative_file = strip_prefix(file,input_dir)
package = package_config.package_for_file(relative_file)
if (!package)
raise "Unable to find package for file #{file}"
end
package_file_map[package] = [] if !package_file_map[package]
package_file_map[package] << file
end
# generate each package
package_file_map.each do |package,files|
puts "Generating package #{package}"
quoted_files = []
files.each do |file|
# do not package the updater binary into a zip file -
# it must be downloaded uncompressed
if package_config.is_updater(file)
next
end
quoted_files << "\"#{strip_prefix(file,input_dir)}\""
end
if (quoted_files.empty?)
puts "Skipping generation of empty package #{package}"
next
end
# sort the files in alphabetical order to ensure
# that if the input files for a package have the same
# name and content, the resulting package will have the
# same SHA-1
#
# This means that repeated runs of the package creation tool
# on the same set of files should generated packages with the
# same SHA-1
quoted_files.sort! do |a,b|
a <=> b
end
quoted_file_list = quoted_files.join(" ")
output_path = File.expand_path(output_dir)
output_file = "#{output_path}/#{package}.zip"
File.unlink(output_file) if File.exist?(output_file)
Dir.chdir(input_dir) do
if (!system("zip #{output_file} #{quoted_file_list}"))
raise "Failed to generate package #{package}"
else
puts "Generated package #{package} : #{file_sha1(output_file)}"
end
end
end
# copy the updater to the output directory
if !updater_binary_input_path
puts "Updater binary not found in input directory: #{input_dir}"
exit(1)
end
FileUtils.cp(updater_binary_input_path,"#{output_dir}/#{File.basename(updater_binary_input_path)}")
# output the file_list.xml file
update_script = UpdateScriptGenerator.new(target_version,target_platform,input_dir,
output_dir,package_config,input_file_list,package_file_map)
output_xml_file = "#{output_dir}/file_list.unformatted.xml"
File.open(output_xml_file,'w') do |file|
file.write update_script.to_xml()
end
# xmllint generates more readable formatted XML than REXML, so write unformatted
# XML first and then format it with xmllint.
system("xmllint --format #{output_xml_file} > #{output_dir}/file_list.xml")
File.delete(output_xml_file)