analyze_deps.rb

#!/usr/bin/env ruby
require'yaml'
require'set'

Private=Struct.new(:name)

ifARGV.first == '--all'
ARGV.shift
elsifARGV.first == '--no-private'
ARGV.shift
YAML::add_domain_type('developer.apple.com,2014','private')do |type,val|
nil
end
else
YAML::add_domain_type('developer.apple.com,2014','private')do |type,val|
Private.new(val)
end
end

files={}
ARGV.eachdo |file|
yaml=YAML::load_file(file)
files[File.basename(file)]=yamlifyaml
end

YAML::dump(files)

# We cheat here and dump everything into the same bucket.
names={}
files.eachdo |k,v|
v['provides'].eachdo |name|
names[name] ||= []
names[name] << k
endifv['provides']
v['nominals'].eachdo |name|
names[name] ||= []
names[name] << k
endifv['nominals']
v['class-members'].eachdo |name|
names[name] ||= []
names[name] << k
endifv['class-members']
end

all_deps={}
all_private_deps={}
files.eachdo |k,v|
deps=Set.new()
private_deps=Set.new()
v['top-level'].eachdo |name|
nextunlessname
ifname.is_a?Private
private_deps.merge(names[name.name] || [])
else
deps.merge(names[name] || [])
end
endifv['top-level']
v['member-access'].eachdo |name|
nextunlessname
ifname.is_a?Private
private_deps.merge(names[name.name] || [])
else
deps.merge(names[name] || [])
end
endifv['member-access']
v['dynamic-lookup'].eachdo |name|
nextunlessname
ifname.is_a?Private
private_deps.merge(names[name.name] || [])
else
deps.merge(names[name] || [])
end
endifv['dynamic-lookup']
deps.delete(k)
private_deps.delete(k)
private_deps.subtract(deps)
all_deps[k]=deps.to_a.sort
all_private_deps[k]=private_deps.to_a.sort
end

# Graphviz output!
puts'digraph dependencies {'
all_deps.eachdo |k,v|
v.eachdo |dep|
puts"\t\"#{dep}\" -> \"#{k}\""
end
ifv.empty?
puts"\t\"#{k}\""
end
end
all_private_deps.eachdo |k,v|
v.eachdo |dep|
puts"\t\"#{dep}\" -> \"#{k}\" [style=dotted]"
end
end
puts'}'