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#!/usr/bin/ruby -Eutf-8
# encoding: utf-8
#
# Find dependencies between ruby packages
#
# Must run inside a openwrt with all *ruby* packages installed
#
failed = false
puts "Looking for installed ruby packages..."
packages=`opkg list-installed '*ruby*' | cut -d' ' -f 1`.split("\n")
puts "Looking for packages files..."
package_files=Hash.new([])
packages.each do
|pkg|
files=`opkg files "#{pkg}" | sed -e 1d`.split("\n")
package_files[pkg]=files if files
end
require_regex=/^require ["']([^"']+)["'].*/
require_regex_ignore=/^require ([a-zA-Z\$]|["']$|.*\/$)/
require_ignore=%w{drb/invokemethod16 foo rubygems/defaults/operating_system win32console java Win32API
builder/xchar json/pure simplecov win32/sspi rdoc/markdown/literals_1_8 enumerator win32/resolv rbtree
nqxml/streamingparser nqxml/treeparser xmlscan/parser xmlscan/scanner xmltreebuilder xml/parser xmlparser xml/encoding-ja xmlencoding-ja
iconv uconv win32ole gettext/po_parser gettext/mo libxml}
builtin_enc=[
Encoding.find("ASCII-8BIT"),
Encoding.find("UTF-8"),
Encoding.find("UTF-7"),
Encoding.find("US-ASCII"),
]
puts "Looking for requires in files..."
files_requires=Hash.new([])
packages.each do
|pkg|
package_files[pkg].each do
|file|
next if not File.file?(file)
if not file =~ /.rb$/
if File.executable?(file)
magic=`head -c50 '#{file}' | head -1`
begin
if not magic =~ /ruby/
next
end
rescue
next
end
else
next
end
end
#puts "Checking #{file}..."
File.open(file, "r") do
|f|
lineno=0
while line=f.gets() do
lineno+=1; encs=[]; requires=[]; need_encdb=false
line=line.chomp.gsub!(/^[[:blank:]]*/,"")
case line
when /^#.*coding *:/
if lineno <= 2
enc=line.sub(/.*coding *: */,"").sub(/ .*/,"")
encs << Encoding.find(enc)
end
end
line.gsub!(/#.*/,"")
case line
when "__END__"
break
when /^require /
#puts "#{file}:#{line}"
if require_regex_ignore =~ line
#puts "Ignoring #{line} at #{file}:#{lineno} (REGEX)..."
next
end
if not require_regex =~ line
$stderr.puts "Unknown require: '#{line}' at file #{file}:#{lineno}"
failed=true
end
require=line.gsub(require_regex,"\\1")
require.gsub!(/\.(so|rb)$/,"")
if require_ignore.include?(require)
#puts "Ignoring #{line} at #{file}:#{lineno} (STR)..."
next
end
files_requires[file]=files_requires[file] + [require]
when /Encoding::/
encs=line.scan(/Encoding::[[:alnum:]_]+/).collect {|enc| eval(enc) }.select {|enc| enc.kind_of? Encoding }
need_encdb=true
end
next if encs.empty?
required_encs = (encs - builtin_enc).collect {|enc| "enc/#{enc.name.downcase.gsub("-","_")}" }
required_encs << "enc/encdb" if need_encdb
files_requires[file] = files_requires[file] + required_encs
end
end
end
end
exit(1) if failed
# Add deps from .so
package_files.each do |(pkg,files)| files.each do |file|
case file
when /\/nkf\.so$/
files_requires[file]= files_requires[file] + ["enc/encdb"]
end
end; end
puts "Merging requirements into packages..."
package_requires = Hash[packages.collect { |pkg| [pkg, package_files[pkg].collect {|file| files_requires[file] }.inject([],:+).uniq] }]
weak_dependency=Hash.new([])
weak_dependency.merge!({
"ruby-misc"=>["ruby-openssl","ruby-fiddle"], #securerandom.rb
"ruby-debuglib"=>["ruby-readline"], #debug.rb
"ruby-drb"=>["ruby-openssl"], #drb/ssl.rb
"ruby-irb"=>["ruby-rdoc", "ruby-readline"], #irb/cmd/help.rb
"ruby-gems"=>["ruby-openssl","ruby-io-console","ruby-webrick"], #rubygems/commands/cert_command.rb rubygems/user_interaction.rb rubygems/server.rb
"ruby-mkmf"=>["ruby-webrick"], #un.rb
"ruby-net"=>["ruby-openssl","ruby-io-console","ruby-zlib"], #net/*.rb
"ruby-optparse"=>["ruby-uri","ruby-datetime"], #optparse/date.rb optparse/uri.rb
"ruby-rake"=>["ruby-net","ruby-gems"], #rake/contrib/ftptools.rb /usr/bin/rake
"ruby-rdoc"=>["ruby-gems","ruby-readline","ruby-webrick", #/usr/bin/rdoc and others
"ruby-io-console"], #rdoc/stats/normal.rb
"ruby-webrick"=>["ruby-openssl"], #webrick/ssl.rb
})
puts "Preloading gems..."
Gem::Specification.all.each{ |x| gem x.name }
puts "Looking for package dependencies..."
package_provides = {}
package_dependencies = Hash.new([])
package_requires.each do
|(pkg,requires)|
requires.each do
|require|
if package_provides.include?(require)
found = package_provides[require]
else
found = package_files.detect {|(pkg,files)| files.detect {|file| $:.detect {|path| "#{path}/#{require}" == file.gsub(/\.(so|rb)$/,"") } } }
if not found
$stderr.puts "#{pkg}: Nothing provides #{require}"
failed = true
next
end
found = found.first
package_provides[require]=found
end
if weak_dependency[pkg].include?(found)
puts "#{pkg}: #{found} provides #{require} (ignored WEAK dep)"
else
puts "#{pkg}: #{found} provides #{require}"
package_dependencies[pkg]=package_dependencies[pkg] + [found]
end
end
end
if failed
puts "There is some missing requirements not mapped to files in packages."
puts "Please, fix the missing files or ignore them on require_ignore var"
exit(1)
end
package_dependencies.each do
|(pkg,deps)|
package_dependencies[pkg]=deps.uniq.sort - [pkg]
end
puts "Expanding dependencies..."
begin
changed=false
package_dependencies.each do
|(pkg,deps)|
next if deps.empty?
deps_new = deps.collect {|dep| [dep] + package_dependencies[dep] }.inject([],:+).uniq.sort
if not deps == deps_new
puts "#{pkg}: #{deps.join(",")}"
puts "#{pkg}: #{deps_new.join(",")}"
package_dependencies[pkg]=deps_new
changed=true
end
end
end if not changed
puts "Checking for mutual dependencies..."
package_dependencies.each do
|(pkg,deps)|
if deps.include? pkg
$stderr.puts "#{pkg}: Cycle dependency detected! "
failed = true
end
end
exit(1) if failed
puts "Removing redundant dependencies..."
package_dependencies.each do
|(pkg,deps)|
package_dependencies[pkg]=deps.uniq - [pkg]
end
package_dependencies2=package_dependencies.dup
package_dependencies.each do
|(pkg,deps)|
# Ignore dependencies that are aready required by another dependency
deps_clean = deps.reject {|dep_suspect| deps.detect {|dep_provider|
if package_dependencies[dep_provider].include?(dep_suspect)
puts "#{pkg}: #{dep_suspect} is already required by #{dep_provider}"
true
end
} }
if not deps==deps_clean
puts "before: #{deps.join(",")}"
puts "after: #{deps_clean.join(",")}"
package_dependencies2[pkg]=deps_clean
end
end
package_dependencies=package_dependencies2
puts "Checking current packages dependencies..."
ok=true
package_dependencies.each do
|(pkg,deps)|
current_deps=`opkg depends #{pkg} | sed -r -e '1d;s/^[[:blank:]]*//'`.split("\n")
current_deps.reject!{|dep| dep =~ /^lib/ }
current_deps -= ["ruby"]
extra_dep = current_deps - deps
$stderr.puts "Package #{pkg} does not need to depend on #{extra_dep.join(" ")} " if not extra_dep.empty?
missing_dep = deps - current_deps
$stderr.puts "Package #{pkg} needs to depend on #{missing_dep.join(" ")} " if not missing_dep.empty?
if not extra_dep.empty? or not missing_dep.empty?
$stderr.puts "define Package/#{pkg}"
$stderr.puts " DEPENDS:=ruby#{([""] +deps).join(" +")}"
ok=false
end
end
puts "All dependencies are OK." if ok
__END__
puts RUBY_VERSION, RUBY_PLATFORM
puts 123
puts Object.contants
#RUBY_VER=2.1
#RUBY_ARCH=i486-linux-gnu
#RUBYLIB=/usr/lib/ruby/$RUBY_VER/
#RUBYLIB_A=/usr/lib/ruby/$RUBY_ARCH/$RUBY_VER/