478 lines
14 KiB
Ruby
478 lines
14 KiB
Ruby
#!/usr/bin/env ruby
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require 'json'
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require 'nokogiri'
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require 'slop'
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# Returns a repo URL for a given package name.
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def repo_url value
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if value && value.start_with?('http')
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value
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elsif value
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"https://dl.google.com/android/repository/#{value}"
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else
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nil
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end
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end
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# Returns a system image URL for a given system image name.
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def image_url value, dir
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if dir == "default"
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dir = "android"
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end
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if value && value.start_with?('http')
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value
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elsif value
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"https://dl.google.com/android/repository/sys-img/#{dir}/#{value}"
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else
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nil
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end
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end
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# Returns a JSON with the data and structure of the input XML
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def to_json_collector doc
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json = {}
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index = 0
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doc.element_children.each { |node|
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if node.children.length == 1 and node.children.first.text?
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json["#{node.name}:#{index}"] ||= node.content
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index += 1
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next
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end
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json["#{node.name}:#{index}"] ||= to_json_collector node
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index += 1
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}
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element_attributes = {}
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doc.attribute_nodes.each do |attr|
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if attr.name == "type"
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type = attr.value.split(':', 2).last
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case attr.value
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when 'generic:genericDetailsType'
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element_attributes["xsi:type"] ||= "ns5:#{type}"
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when 'addon:extraDetailsType'
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element_attributes["xsi:type"] ||= "ns8:#{type}"
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when 'addon:mavenType'
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element_attributes["xsi:type"] ||= "ns8:#{type}"
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when 'sdk:platformDetailsType'
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element_attributes["xsi:type"] ||= "ns11:#{type}"
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when 'sdk:sourceDetailsType'
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element_attributes["xsi:type"] ||= "ns11:#{type}"
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when 'sys-img:sysImgDetailsType'
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element_attributes["xsi:type"] ||= "ns12:#{type}"
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when 'addon:addonDetailsType' then
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element_attributes["xsi:type"] ||= "ns8:#{type}"
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end
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else
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element_attributes[attr.name] ||= attr.value
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end
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end
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if !element_attributes.empty?
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json['element-attributes'] ||= element_attributes
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end
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json
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end
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# Returns a tuple of [type, revision, revision components] for a package node.
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def package_revision package
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type_details = package.at_css('> type-details')
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type = type_details.attributes['type']
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type &&= type.value
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revision = nil
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components = nil
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case type
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when 'generic:genericDetailsType', 'addon:extraDetailsType', 'addon:mavenType'
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major = text package.at_css('> revision > major')
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minor = text package.at_css('> revision > minor')
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micro = text package.at_css('> revision > micro')
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preview = text package.at_css('> revision > preview')
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revision = ''
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components = []
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unless empty?(major)
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revision << major
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components << major
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end
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unless empty?(minor)
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revision << ".#{minor}"
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components << minor
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end
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unless empty?(micro)
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revision << ".#{micro}"
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components << micro
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end
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unless empty?(preview)
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revision << "-rc#{preview}"
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components << preview
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end
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when 'sdk:platformDetailsType'
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codename = text type_details.at_css('> codename')
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api_level = text type_details.at_css('> api-level')
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revision = empty?(codename) ? api_level : codename
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components = [revision]
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when 'sdk:sourceDetailsType'
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api_level = text type_details.at_css('> api-level')
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revision, components = api_level, [api_level]
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when 'sys-img:sysImgDetailsType'
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codename = text type_details.at_css('> codename')
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api_level = text type_details.at_css('> api-level')
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id = text type_details.at_css('> tag > id')
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abi = text type_details.at_css('> abi')
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revision = ''
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components = []
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if empty?(codename)
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revision << api_level
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components << api_level
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else
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revision << codename
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components << codename
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end
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unless empty?(id)
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revision << "-#{id}"
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components << id
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end
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unless empty?(abi)
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revision << "-#{abi}"
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components << abi
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end
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when 'addon:addonDetailsType' then
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api_level = text type_details.at_css('> api-level')
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id = text type_details.at_css('> tag > id')
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revision = api_level
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components = [api_level, id]
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end
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[type, revision, components]
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end
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# Returns a hash of archives for the specified package node.
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def package_archives package
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archives = {}
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package.css('> archives > archive').each do |archive|
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host_os = text archive.at_css('> host-os')
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host_os = 'all' if empty?(host_os)
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archives[host_os] = {
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'size' => Integer(text(archive.at_css('> complete > size'))),
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'sha1' => text(archive.at_css('> complete > checksum')),
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'url' => yield(text(archive.at_css('> complete > url')))
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}
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end
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archives
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end
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# Returns the text from a node, or nil.
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def text node
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node ? node.text : nil
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end
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# Nil or empty helper.
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def empty? value
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!value || value.empty?
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end
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# Fixes up returned hashes by converting archives like
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# (e.g. {'linux' => {'sha1' => ...}, 'macosx' => ...} to
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# [{'os' => 'linux', 'sha1' => ...}, {'os' => 'macosx', ...}, ...].
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def fixup value
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Hash[value.map do |k, v|
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if k == 'archives' && v.is_a?(Hash)
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[k, v.map do |os, archive|
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fixup({'os' => os}.merge(archive))
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end]
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elsif v.is_a?(Hash)
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[k, fixup(v)]
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else
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[k, v]
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end
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end]
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end
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# Today since Unix Epoch, January 1, 1970.
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def today
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Time.now.utc.to_i / 24 / 60 / 60
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end
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# The expiration strategy. Expire if the last available day was before the `oldest_valid_day`.
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def expire_records record, oldest_valid_day
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if record.is_a?(Hash)
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if record.has_key?('last-available-day') &&
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record['last-available-day'] < oldest_valid_day
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return nil
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end
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update = {}
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# This should only happen in the first run of this scrip after adding the `expire_record` function.
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if record.has_key?('displayName') &&
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!record.has_key?('last-available-day')
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update['last-available-day'] = today
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end
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record.each {|key, value|
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v = expire_records value, oldest_valid_day
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update[key] = v if v
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}
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update
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else
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record
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end
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end
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# Normalize the specified license text.
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# See: https://brash-snapper.glitch.me/ for how the munging works.
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def normalize_license license
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license = license.dup
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license.gsub!(/([^\n])\n([^\n])/m, '\1 \2')
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license.gsub!(/ +/, ' ')
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license.strip!
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license
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end
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# Gets all license texts, deduplicating them.
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def get_licenses doc
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licenses = {}
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doc.css('license[type="text"]').each do |license_node|
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license_id = license_node['id']
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if license_id
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licenses[license_id] ||= []
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licenses[license_id] |= [normalize_license(text(license_node))]
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end
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end
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licenses
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end
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def parse_package_xml doc
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licenses = get_licenses doc
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packages = {}
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doc.css('remotePackage').each do |package|
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name, _, version = package['path'].partition(';')
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next if version == 'latest'
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type, revision, _ = package_revision(package)
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next unless revision
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path = package['path'].tr(';', '/')
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display_name = text package.at_css('> display-name')
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uses_license = package.at_css('> uses-license')
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uses_license &&= uses_license['ref']
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obsolete ||= package['obsolete']
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type_details = to_json_collector package.at_css('> type-details')
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revision_details = to_json_collector package.at_css('> revision')
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archives = package_archives(package) {|url| repo_url url}
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dependencies_xml = package.at_css('> dependencies')
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dependencies = to_json_collector dependencies_xml if dependencies_xml
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target = (packages[name] ||= {})
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target = (target[revision] ||= {})
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target['name'] ||= name
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target['path'] ||= path
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target['revision'] ||= revision
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target['displayName'] ||= display_name
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target['license'] ||= uses_license if uses_license
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target['obsolete'] ||= obsolete if obsolete == 'true'
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target['type-details'] ||= type_details
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target['revision-details'] ||= revision_details
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target['dependencies'] ||= dependencies if dependencies
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target['archives'] ||= {}
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merge target['archives'], archives
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target['last-available-day'] = today
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end
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[licenses, packages]
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end
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def parse_image_xml doc
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licenses = get_licenses doc
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images = {}
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doc.css('remotePackage[path^="system-images;"]').each do |package|
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type, revision, components = package_revision(package)
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next unless revision
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path = package['path'].tr(';', '/')
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display_name = text package.at_css('> display-name')
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uses_license = package.at_css('> uses-license')
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uses_license &&= uses_license['ref']
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obsolete &&= package['obsolete']
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type_details = to_json_collector package.at_css('> type-details')
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revision_details = to_json_collector package.at_css('> revision')
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archives = package_archives(package) {|url| image_url url, components[-2]}
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dependencies_xml = package.at_css('> dependencies')
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dependencies = to_json_collector dependencies_xml if dependencies_xml
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target = images
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components.each do |component|
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target[component] ||= {}
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target = target[component]
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end
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target['name'] ||= "system-image-#{revision}"
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target['path'] ||= path
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target['revision'] ||= revision
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target['displayName'] ||= display_name
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target['license'] ||= uses_license if uses_license
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target['obsolete'] ||= obsolete if obsolete
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target['type-details'] ||= type_details
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target['revision-details'] ||= revision_details
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target['dependencies'] ||= dependencies if dependencies
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target['archives'] ||= {}
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merge target['archives'], archives
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target['last-available-day'] = today
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end
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[licenses, images]
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end
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def parse_addon_xml doc
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licenses = get_licenses doc
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addons, extras = {}, {}
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doc.css('remotePackage').each do |package|
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type, revision, components = package_revision(package)
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next unless revision
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path = package['path'].tr(';', '/')
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display_name = text package.at_css('> display-name')
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uses_license = package.at_css('> uses-license')
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uses_license &&= uses_license['ref']
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obsolete &&= package['obsolete']
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type_details = to_json_collector package.at_css('> type-details')
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revision_details = to_json_collector package.at_css('> revision')
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archives = package_archives(package) {|url| repo_url url}
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dependencies_xml = package.at_css('> dependencies')
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dependencies = to_json_collector dependencies_xml if dependencies_xml
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case type
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when 'addon:addonDetailsType'
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name = components.last
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target = addons
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# Hack for Google APIs 25 r1, which displays as 23 for some reason
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archive_name = text package.at_css('> archives > archive > complete > url')
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if archive_name == 'google_apis-25_r1.zip'
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path = 'add-ons/addon-google_apis-google-25'
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revision = '25'
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components = [revision, components.last]
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end
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when 'addon:extraDetailsType', 'addon:mavenType'
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name = package['path'].tr(';', '-')
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components = [package['path']]
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target = extras
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end
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components.each do |component|
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target = (target[component] ||= {})
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end
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target['name'] ||= name
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target['path'] ||= path
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target['revision'] ||= revision
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target['displayName'] ||= display_name
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target['license'] ||= uses_license if uses_license
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target['obsolete'] ||= obsolete if obsolete
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target['type-details'] ||= type_details
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target['revision-details'] ||= revision_details
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target['dependencies'] ||= dependencies if dependencies
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target['archives'] ||= {}
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merge target['archives'], archives
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target['last-available-day'] = today
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end
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[licenses, addons, extras]
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end
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# Make the clean diff by always sorting the result before puting it in the stdout.
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def sort_recursively value
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if value.is_a?(Hash)
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Hash[
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value.map do |k, v|
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[k, sort_recursively(v)]
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end.sort_by {|(k, v)| k }
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]
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elsif value.is_a?(Array)
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value.map do |v| sort_recursively(v) end
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else
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value
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end
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end
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def merge_recursively a, b
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a.merge!(b) {|key, a_item, b_item|
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if a_item.is_a?(Hash) && b_item.is_a?(Hash)
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merge_recursively(a_item, b_item)
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elsif b_item != nil
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b_item
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end
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}
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a
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end
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def merge dest, src
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merge_recursively dest, src
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end
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opts = Slop.parse do |o|
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o.array '-p', '--packages', 'packages repo XMLs to parse'
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o.array '-i', '--images', 'system image repo XMLs to parse'
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o.array '-a', '--addons', 'addon repo XMLs to parse'
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end
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result = {}
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result['licenses'] = {}
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result['packages'] = {}
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result['images'] = {}
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result['addons'] = {}
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result['extras'] = {}
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opts[:packages].each do |filename|
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licenses, packages = parse_package_xml(Nokogiri::XML(File.open(filename)) { |conf| conf.noblanks })
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merge result['licenses'], licenses
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merge result['packages'], packages
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end
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opts[:images].each do |filename|
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licenses, images = parse_image_xml(Nokogiri::XML(File.open(filename)) { |conf| conf.noblanks })
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merge result['licenses'], licenses
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merge result['images'], images
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end
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opts[:addons].each do |filename|
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licenses, addons, extras = parse_addon_xml(Nokogiri::XML(File.open(filename)) { |conf| conf.noblanks })
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merge result['licenses'], licenses
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merge result['addons'], addons
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merge result['extras'], extras
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end
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# As we keep the old packages in the repo JSON file, we should have
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# a strategy to remove them at some point!
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# So with this variable we claim it's okay to remove them from the
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# JSON after two years that they are not available.
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two_years_ago = today - 2 * 365
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input = {}
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begin
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input_json = (STDIN.tty?) ? "{}" : $stdin.read
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if input_json != nil && !input_json.empty?
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input = expire_records(JSON.parse(input_json), two_years_ago)
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end
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rescue JSON::ParserError => e
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$stderr.write(e.message)
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return
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end
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fixup_result = fixup(result)
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# Regular installation of Android SDK would keep the previously installed packages even if they are not
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# in the uptodate XML files, so here we try to support this logic by keeping un-available packages,
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# therefore the old packages will work as long as the links are working on the Google servers.
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output = merge input, fixup_result
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puts JSON.pretty_generate(sort_recursively(output))
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