Created
August 19, 2012 12:29
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Displays gem urls and summaries found in a Gemfile
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#!/usr/bin/env ruby | |
# USAGE | |
# gemfile [--bundle] [--details] [--fetch] [--sorted] [--commentate] | |
# DESCRIPTION | |
# Displays gem urls and summaries found in a Gemfile. | |
# cd into a directory with a Gemfile and run `gemfile` | |
# PREREQUISITES | |
# gem install bundler paint | |
# FLAGS | |
# bundle: Display all bundled gems (default is only top level dependencies) | |
# details: Show gem descriptions | |
# fetch: If a gem could not be found on the system, try to fetch its data from rubygems.org | |
# sorted: Show in alphabetical order instead of the one in the Gemfile | |
# commentate: Add gem descriptions to the __END__ section of your Gemfile | |
require 'rubygems' unless defined? Gem | |
require 'bundler' # gem install bundler | |
require 'open-uri' | |
require 'paint' # gem install paint | |
require 'json' | |
if RUBY_VERSION >= "1.9.3" | |
require 'io/console' | |
width = STDIN.winsize[1] | |
else | |
width = `stty size | cut -d" " -f2`.to_i | |
end | |
FakeSpec = Struct.new :name, :homepage, :description | |
bundle = $*.delete '--bundle' | |
details = $*.delete '--details' | |
fetch = $*.delete '--fetch' | |
sorted = $*.delete '--sorted' | |
commentate = $*.delete '--commentate' | |
specs = | |
if bundle | |
Bundler.load.specs | |
else | |
Bundler.definition.dependencies.map do |d| | |
begin | |
d.to_spec | |
rescue Gem::LoadError | |
Thread.new do | |
homepage, description = "", "" | |
if fetch | |
begin | |
gem_data = JSON.parse(open("https://rubygems.org/api/v1/gems/#{URI.escape(d.name)}.json").read) | |
homepage, description = gem_data["homepage_uri"], gem_data["info"] | |
rescue | |
end | |
end | |
FakeSpec.new d.name, homepage, description | |
end | |
end | |
end.map{ |t| t.respond_to?(:value) ? t.value : t } | |
end | |
specs = specs.sort_by(&:name) if sorted | |
res = "" | |
specs.each{ |s| | |
res << Paint[s.name, :bold] | |
if s.homepage && !s.homepage.empty? | |
res << "#{details ? " | " : " "}#{s.homepage}" | |
end | |
res << "\n" | |
if details | |
res << (s.description || s.summary). | |
gsub(/\s+/m," "). | |
gsub(/^ /,""). | |
scan(/.{0,#{ width -2 }}(?:\s|\z)/).map{ |l| " #{l}\n" }.join | |
end | |
} | |
if commentate | |
gemfile_source = File.read(Bundler.default_gemfile) | |
really_do_it = true | |
if gemfile_source =~ /^__END__/ | |
print 'There already is a data section defined in your Gemfile... replace? [Yn]'; question = gets | |
if question =~ /\A[yY]?\n\z/ | |
File.open(Bundler.default_gemfile, 'w'){ |f| | |
f.write gemfile_source.gsub(/\n?^__END__.*?\z/m, '') | |
} | |
else | |
really_do_it = false | |
puts 'Not updated' | |
end | |
end | |
if really_do_it | |
File.open(Bundler.default_gemfile, 'a'){ |f| | |
f.write("\n__END__\n#{ Time.now.strftime(%[%e#{->o{%w[st nd rd][~-o%10]||%[th]}[Time.now.day]} of %B, %Y]) }\n\n#{ Paint.unpaint(res) }") | |
} | |
puts 'Appended gem information to your Gemfile' | |
end | |
else | |
print res | |
end |
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