Created
October 19, 2009 17:46
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## | |
# Look in all the installed gems until a matching _path_ is found. | |
# Return the _gemspec_ of the gem where it was found. If no match | |
# is found, return nil. | |
# | |
# The gems are searched in alphabetical order, and in reverse version order. | |
# If a path is found in more than one gem the gem with a spec.name == path | |
# is preferred over others - in otherwords main-3.0.3/lib/main.rb would be | |
# preferred over geonames-1.2.3/lib/main.rb if one issued a 'require "main"' | |
# - assuming main had spec.name=='main'. | |
# | |
# For example: | |
# | |
# find('log4r') # -> (log4r-1.1 spec) | |
# find('log4r.rb') # -> (log4r-1.1 spec) | |
# find('rake/rdoctask') # -> (rake-0.4.12 spec) | |
# find('foobarbaz') # -> nil | |
# | |
# Matching paths can have various suffixes ('.rb', '.so', and | |
# others), which may or may not already be attached to _file_. | |
# This method doesn't care about the full filename that matches; | |
# only that there is a match. | |
def find(path) | |
first_named = first = nil | |
@gemspecs.select do |spec| | |
if(matching_file?(spec, path)) | |
name = File.basename(path).sub(%r/\..*$/,'') | |
first ||= spec | |
first_named ||= spec if(spec.name == name) | |
end | |
break if(first_named and first) | |
end | |
first_named or first | |
end |
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