webrat/spec/integration/merb/tasks/merb.thor/ops.rb

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module Thor::Tasks
module Merb
class Collector
attr_reader :dependencies
def self.collect(str)
collector = new
collector.instance_eval(str)
collector.dependencies
end
def initialize
@dependencies = []
end
def dependency(name, *versions)
versions.pop if versions.last.is_a?(Hash)
@dependencies << [name, versions]
end
end
class Gem < Thor
def full_list
@idx.load_gems_in("gems/specifications")
@list.map do |name, versions|
dep = ::Gem::Dependency.new(name, versions)
spec = @idx.search(dep).last
unless spec
self.class.error "A required dependency #{dep} was not found"
self.class.rollback_trans
end
deps = spec.recursive_dependencies(dep, @idx)
[spec] + deps
end.flatten.uniq
end
def rescue_failures(error = StandardError, prc = nil)
begin
yield
rescue error => e
if prc
prc.call(e)
else
puts e.message
puts e.backtrace
end
self.class.rollback_trans
end
end
def self.begin_trans
note "Beginning transaction"
FileUtils.cp_r(Dir.pwd / "gems", Dir.pwd / ".original_gems")
end
def self.commit_trans
note "Committing transaction"
FileUtils.rm_rf(Dir.pwd / ".original_gems")
end
def self.rollback_trans
if File.exist?(Dir.pwd / ".original_gems")
note "Rolling back transaction"
FileUtils.rm_rf(Dir.pwd / "gems")
FileUtils.mv(Dir.pwd / ".original_gems", Dir.pwd / "gems")
end
exit!
end
private
def _install(dep)
@idx.load_gems_in("gems/specifications")
return if @idx.search(dep).last
installer = ::Gem::DependencyInstaller.new(
:bin_dir => Dir.pwd / "bin",
:install_dir => Dir.pwd / "gems",
:user_install => false)
begin
installer.install dep.name, dep.version_requirements
rescue ::Gem::GemNotFoundException => e
puts "Cannot find #{dep}"
rescue ::Gem::RemoteFetcher::FetchError => e
puts e.message
puts "Retrying..."
retry
end
end
end
end
end