Commit 6faa35d5 authored by Kaarle Ritvanen's avatar Kaarle Ritvanen

RubyGem dependency resolver

parent 96f91678
......@@ -9,7 +9,8 @@ datadir ?= $(prefix)/share/$(PACKAGE)
abuildrepo ?= ~/.cache/abuild
SCRIPTS := abuild buildrepo abuild-keygen abuild-sign newapkbuild \
abump apkgrel buildlab apkbuild-cpan checkapk
abump apkgrel buildlab apkbuild-cpan checkapk \
apkbuild-gem-resolver
USR_BIN_FILES := $(SCRIPTS) abuild-tar abuild-sudo
SAMPLES := sample.APKBUILD sample.initd sample.confd \
sample.pre-install sample.post-install
......
#!/usr/bin/ruby
# APKBUILD dependency resolver for RubyGems
# Copyright (C) 2014 Kaarle Ritvanen
require 'augeas'
require 'rubygems/dependency'
require 'rubygems/resolver'
require 'rubygems/spec_fetcher'
class Aport
RUBY_SUBPACKAGES = {
'2.0.0_p481' => {
'ruby-minitest' => ['minitest', '4.3.2'],
'ruby-rake' => ['rake', '0.9.6'],
'ruby-rdoc' => ['rdoc', '4.0.0', 'ruby-json']
},
'2.1.5' => {
'ruby-minitest' => ['minitest', '4.7.5'],
'ruby-rake' => ['rake', '10.1.0'],
'ruby-rdoc' => ['rdoc', '4.1.0', 'ruby-json']
}
}
@@aports = {}
@@subpackages = []
def self.initialize
Augeas::open(nil, nil, Augeas::NO_MODL_AUTOLOAD) do |aug|
dir = Dir.pwd
aug.transform(:lens => 'Shellvars.lns', :incl => dir + '/*/ruby*/APKBUILD')
aug.load
apath = '/files' + dir
fail if aug.match("/augeas#{apath}//error").length > 0
for repo in ['main', 'testing']
for aport in aug.match "#{apath}/#{repo}/*"
FileAport.new(aug, aport) unless aport.end_with? '/ruby'
end
end
for name, attrs in RUBY_SUBPACKAGES[
aug.get("#{apath}/main/ruby/APKBUILD/pkgver")
]
gem, version, *deps = attrs
aport = new name, gem, version
for dep in deps
aport.add_dependency dep
end
@@subpackages.push aport
end
end
@@aports.each_value do |aport|
aport.depends do |dep|
dep.add_user aport
end
end
end
def self.get name
@@aports[name]
end
def self.ruby_subpkgs
for pkg in @@subpackages
yield pkg
end
end
def initialize name, gem, version
@name = name
@gem = gem
@version = version
@depends = []
@users = []
@@aports[name] = self
end
def add_dependency name
@depends.push name
end
attr_reader :gem, :name, :version
def depends
for dep in @depends
unless @@aports.has_key? dep
raise "Dependency for #{@name} does not exist: #{dep}"
end
yield @@aports[dep]
end
end
def users
for user in @users
yield user
end
end
def add_user user
@users.push user
end
end
class FileAport < Aport
def initialize aug, path
name = path.split('/')[-1]
get = proc{ |param|
res = aug.get(path + '/APKBUILD/' + param)
raise param + ' not defined for ' + name unless res
res
}
super name, get.call('_gemname'), get.call('pkgver')
for dep in `echo #{get.call('depends')}`.split
add_dependency dep if dep.start_with? 'ruby-'
end
end
end
Aport.initialize
class Update
def initialize
@gems = {}
@deps = []
end
def require_version name, version
aport = Aport.get name
raise 'Invalid package name: ' + name unless aport
gem = assign(aport.gem, name)
@deps.push gem.dependency if gem.require_version version
end
def resolve
Aport.ruby_subpkgs do |pkg|
require_version pkg.name, pkg.version unless @gems[pkg.gem]
end
def check_deps
@gems.clone.each_value do |gem|
gem.check_deps
end
end
check_deps
for req in Gem::Resolver.new(@deps).resolve
spec = req.spec
gem = @gems[spec.name]
gem.require_version spec.version.version if gem
end
check_deps
for name, gem in @gems
if gem.updated?
gem.aport.users do |user|
ugem = @gems[user.gem]
if !ugem || ugem.aport.name != user.name
Gem::Resolver.new(
[gem.dependency, Gem::Dependency.new(user.gem, user.version)]
).resolve
end
end
end
end
end
def each
@gems.each_value do |gem|
obs = gem.obsolete_deps
obs = obs.length == 0 ? nil : " (obsolete dependencies: #{obs.join ', '})"
if gem.updated? || obs
yield "#{gem.aport.name}-#{gem.version}#{obs}"
end
end
end
def assign name, aport
aport = Aport.get aport
if @gems.has_key? name
gem = @gems[name]
return gem if aport == gem.aport
raise "Conflicting packages for gem #{name}: #{gem.aport.name} and #{aport.name}"
end
gem = AportGem.new self, name, aport
@gems[name] = gem
gem
end
private
class AportGem
def initialize update, name, aport
@update = update
@name = name
@aport = aport
end
attr_reader :aport, :obsolete_deps
def require_version version
if @version
return false if version == @version
raise "Conflicting versions for gem #{@name}: #{@version} and #{version}"
end
@version = version
true
end
def version
@version || @aport.version
end
def updated?
version != @aport.version
end
def dependency
Gem::Dependency.new(@name, version)
end
def check_deps
specs, errors = Gem::SpecFetcher::fetcher.spec_for_dependency(dependency)
raise "Invalid gem: #{@name}-#{version}" if specs.length == 0
fail if specs.length > 1
deps = specs[0][0].runtime_dependencies
@obsolete_deps = []
@aport.depends do |dep|
gem = @update.assign(dep.gem, dep.name)
gem.check_deps
unless deps.reject! { |sdep| sdep.match? dep.gem, gem.version }
@obsolete_deps.push dep.name
end
end
if deps.length > 0
raise 'Undeclared dependencies in ' + @aport.name + deps.inject('') {
|s, dep| "#{s}\n#{dep.name} #{dep.requirements_list.join ' '}"
}
end
end
end
end
latest = {}
for source, gems in Gem::SpecFetcher::fetcher.available_specs(:latest)[0]
for gem in gems
latest[gem.name] = gem.version.version
end
end
update = Update.new
for arg in ARGV
match = /^(([^-]|-[^\d])+)(-(\d.*))?/.match arg
name = match[1]
update.require_version name, match[4] || latest[Aport.get(name).gem]
end
update.resolve
for aport in update
puts aport
end
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