Created
October 21, 2010 21:44
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#! /usr/bin/env ruby | |
# usage: gemdir gemname | |
# | |
# eg: cd `gemdir yajl` | |
# | |
require 'rubygems' | |
arg = ARGV.first | |
unless arg | |
puts File.join(Gem.dir, "gems") | |
exit | |
end | |
which = arg.dup | |
which << '*' if which | |
entries = | |
Dir[ File.join(Gem.dir, "gems", "#{ which }") ].select{|entry| test ?d, entry}.sort | |
case entries.size | |
when 0 | |
abort "no gem #{ which }" | |
when 1 | |
puts entries.first | |
else | |
all_same_name = entries.map{|e| File.basename(e).split('-').first}.uniq.size == 1 | |
if all_same_name | |
puts entries.last | |
else | |
unless STDIN.tty? | |
warn "ambiguous gemname #{ arg.inspect }" | |
end | |
abort(entries.join("\n")) | |
end | |
end |
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