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74 lines
2.2 KiB
Ruby
74 lines
2.2 KiB
Ruby
#!/usr/bin/env ruby
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require "rubygems/specification"
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require "rubygems/commands/install_command"
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def install_gem(name, requirement, target)
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puts "Fetching and installing gem: #{name} (#{requirement})"
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installer = Gem::Commands::InstallCommand.new
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installer.options[:generate_rdoc] = false
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installer.options[:generate_ri] = false
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installer.options[:version] = requirement
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installer.options[:args] = [name]
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installer.options[:install_dir] = target
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begin
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installer.execute
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rescue Gem::SystemExitException => e
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if e.exit_code != 0
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puts "Installation of #{name} failed"
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raise
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end
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end
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end # def install_gem
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gemspec = ARGV.shift || "logstash.gemspec"
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spec = Gem::Specification.load(gemspec)
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deps = [spec.development_dependencies, spec.runtime_dependencies].flatten
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# target for now
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target = "vendor/bundle/jruby/1.9/"
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deps.each do |dep|
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# TODO(sissel): Hack for now
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next if "#{dep}" == "addressable (~> 2.2.6)"
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begin
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# Check if the gem is available
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# 'gem' returns 'true' if it loaded it, false if already loaded,
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# and raises a Gem::LoadError exception on failure.
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# Skip downloading/installing it if it's already here.
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gem(dep.name, dep.requirement)
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# If we get here, we have the gem.
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puts "Gem found matching: #{dep}"
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rescue Gem::LoadError => e
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# Not installed, continue.
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message = e.to_s
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# Sometimes we failed to load because gembag installs too
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# many things. Like 'shoulda' fails to load because two
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# conflicting versions of 'mocha' were installed.
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# Fundamentally, gembag should build a dependency graph and
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# resolve all version requirements to single nodes to prevent
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# this madness.
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#
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# Possible we can steal bundler's implementation of this,
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# or just use bundler to do it, but only if bundler doesn't
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# bite me in the ass again :)
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case message
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when /Unable to activate/
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puts "Gem found, but funky: #{dep} (#{e})"
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when /Could not find/
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puts "Gem not found: #{dep}"
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install_gem(dep.name, dep.requirement, target)
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else
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puts "Unexpected error: #{e}"
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exit 1
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end # case message
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end # begin / rescue Gem::LoadError
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end # deps.each
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