cog/Scripts/update_feed.rb

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#!/usr/bin/env ruby
require 'tempfile'
require 'open-uri'
require 'rexml/document'
include REXML
feed = ARGV[0] || 'mercury'
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upload_prefix = "Chris@kode54.net:/usr/share/nginx/html/cog/"
signature_file = "#{Dir.home}/.ssh/dsa_priv.pem"
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appcast = open("https://kode54.net/cog/#{feed}.xml")
appcastdoc = Document.new(appcast)
#Get the latest revision from the appcast
appcast_enclosure = REXML::XPath.match(appcastdoc, "//channel/item/enclosure")[0]
appcast_url = appcast_enclosure.attributes['url'];
appcast_revision = appcast_enclosure.attributes['sparkle:version'];
appcast_revision_split = appcast_revision.split( /-/ )
appcast_revision_code = appcast_revision_split[2]
#Remove modified files that may cause conflicts.
#%x[hg revert --all]
#Update to the latest revision
#%x[hg pull -u]
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# %[xcodebuild -workspace Cog.xcodeproj/project.xcworkspace -scheme Cog archive 2>&1].each_line do |line|
# if line.match(/\*\* BUILD FAILD \*\*/)
# exit
# end
# end
archivedir = "~/Library/Developer/Xcode/Archives"
latest_archive = %x[find #{archivedir} -type d -name 'Cog *.xcarchive' -print0 | xargs -0 stat -f "%m %N" -t "%Y" | sort -r | head -n1 | sed -E 's/^[0-9]+ //'].rstrip
app_path = "#{latest_archive}/Products#{ENV['HOME']}/Applications"
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plist = open("#{app_path}/Cog.app/Contents/Info.plist")
plistdoc = Document.new(plist)
version_element = plistdoc.elements["//[. = 'CFBundleVersion']/following-sibling::string"];
latest_revision = version_element.text
#latest_revision = %x[/usr/local/bin/hg log -r . --template '{latesttag}-{latesttagdistance}-{node|short}']
revision_split = latest_revision.split( /-/ )
revision_code = revision_split[2]
if appcast_revision < latest_revision
#Get the changelog
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changelog = %x[/usr/local/bin/hg log --template '{desc}\\n' -r #{revision_code}:children\\(#{appcast_revision_code}\\)]
description = ''
ignore_next = false
changelog.each_line do |line|
if (ignore_next)
ignore_next = false
next
end
if Regexp.new('^-+$').match(line)
ignore_next = true
next
elsif Regexp.new('^\s*$').match(line)
next
end
description += line
end
filename = "Cog-#{revision_code}.zip"
filename_delta = "Cog-#{revision_code}.delta"
temp_path = "/tmp";
%x[rm -rf '#{temp_path}/Cog.app' '#{temp_path}/Cog.old' '#{temp_path}/Cog.zip']
#Retrieve the current full package
%x[curl -o '#{temp_path}/Cog.zip' #{appcast_url}]
#Unpack and rename
%x[ditto -kx '#{temp_path}/Cog.zip' '#{temp_path}/']
%x[mv '#{temp_path}/Cog.app' '#{temp_path}/Cog.old']
#Copy the replacement build
%x[cp -R '#{app_path}/Cog.app' '#{temp_path}/Cog.app']
#Sign it!
%x[#{File.expand_path("../fucking_sign_it.sh", __FILE__)} '#{temp_path}/Cog.app']
#Zip the app!
%x[rm -f '#{temp_path}/#{feed}.zip']
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%x[ditto -c -k --sequesterRsrc --keepParent --zlibCompressionLevel 9 '#{temp_path}/Cog.app' '#{temp_path}/#{feed}.zip']
#Generate delta patch
%x[BinaryDelta create '#{temp_path}/Cog.old' '#{temp_path}/Cog.app' '#{temp_path}/#{feed}.delta']
filesize = File.size("#{temp_path}/#{feed}.zip")
filesize_delta = File.size("#{temp_path}/#{feed}.delta")
openssl = "/usr/bin/openssl"
signature_delta = `#{openssl} dgst -sha1 -binary < "#{temp_path}/#{feed}.delta" | #{openssl} dgst -dss1 -sign "#{signature_file}" | #{openssl} enc -base64`
#Send the new build to the server
%x[scp '#{temp_path}/#{feed}.zip' #{upload_prefix}#{feed}_builds/#{filename}]
%x[rm '#{temp_path}/#{feed}.zip']
#Send the delta
%x[scp '#{temp_path}/#{feed}.delta' #{upload_prefix}#{feed}_builds/#{filename_delta}]
%x[rm '#{temp_path}/#{feed}.delta']
#Clean up
%x[rm -rf '#{temp_path}/Cog.old' '#{temp_path}/Cog.app']
#Add new entry to appcast
new_item = Element.new('item')
new_item.add_element('title')
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new_item.elements['title'].text = "Version 0.08 (#{latest_revision})"
new_item.add_element('description')
new_item.elements['description'].text = description
new_item.add_element('pubDate')
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new_item.elements['pubDate'].text = %x[date -r `stat -f "%m" '#{app_path}'` +'%a, %d %b %Y %T %Z'].rstrip #RFC 822
new_item.add_element('sparkle:minimumSystemVersion')
new_item.elements['sparkle:minimumSystemVersion'].text = '10.7.0'
new_item.add_element('enclosure')
new_item.elements['enclosure'].add_attribute('url', "https://kode54.net/cog/#{feed}_builds/#{filename}")
new_item.elements['enclosure'].add_attribute('length', filesize)
new_item.elements['enclosure'].add_attribute('type', 'application/octet-stream')
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new_item.elements['enclosure'].add_attribute('sparkle:version', "#{latest_revision}")
new_item.add_element('sparkle:deltas')
new_item.elements['sparkle:deltas'].add_element('enclosure')
new_item.elements['sparkle:deltas'].elements['enclosure'].add_attribute('url', "https://kode54.net/cog/#{feed}_builds/#{filename_delta}")
new_item.elements['sparkle:deltas'].elements['enclosure'].add_attribute('length', filesize_delta)
new_item.elements['sparkle:deltas'].elements['enclosure'].add_attribute('type', 'application/octet-stream')
new_item.elements['sparkle:deltas'].elements['enclosure'].add_attribute('sparkle:version', "#{latest_revision}")
new_item.elements['sparkle:deltas'].elements['enclosure'].add_attribute('sparkle:deltaFrom', "#{appcast_revision}")
new_item.elements['sparkle:deltas'].elements['enclosure'].add_attribute('sparkle:dsaSignature', "#{signature_delta}")
appcastdoc.insert_before('//channel/item', new_item)
#Limit number of entries to 5
appcastdoc.delete_element('//channel/item[position()>5]')
new_xml = Tempfile.new('appcast.xml')
appcastdoc.write(new_xml)
new_xml.close()
appcast.close()
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#Send the updated appcast to the server
%x[scp #{new_xml.path} ec2-user@kode54.net:/usr/share/nginx/html/cog/#{feed}.xml]
end