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module Homebrew extend self
def tap
if ARGV.empty?
(HOMEBREW_LIBRARY/"Taps").children.each do |tap|
puts tap.basename.sub('-', '/') if (tap/'.git').directory?
end
else
install_tap(*tap_args)
end
end
def install_tap user, repo
raise "brew install git" unless system "/usr/bin/which -s git"
tapd = HOMEBREW_LIBRARY/"Taps/#{user}-#{repo}"
raise "Already tapped!" if tapd.directory?
abort unless system "git clone https://github.com/#{user}/homebrew-#{repo} #{tapd}"
files = []
tapd.find_formula{ |file| files << Pathname.new("#{user}-#{repo}").join(file) }
tapped = link_tap_formula(files)
puts "Tapped #{tapped} formula"
end
def link_tap_formula formulae
ignores = (HOMEBREW_LIBRARY/"Formula/.gitignore").read.split rescue []
tapped = 0
cd HOMEBREW_LIBRARY/"Formula" do
formulae.each do |formula|
from = HOMEBREW_LIBRARY.join("Taps/#{formula}").tap_ref
to = HOMEBREW_LIBRARY.join("Formula/#{formula.basename}").tap_ref
# Unexpected, but possible, lets proceed as if nothing happened
formula.delete if from == to
# using the system ln is the only way to get relative symlinks
system "ln -s ../Taps/#{formula} 2>/dev/null"
if $?.success?
ignores << formula.basename.to_s
tapped += 1
else
opoo "Could not tap #{Tty.white}#{from}#{Tty.reset} over #{Tty.white}#{to}#{Tty.reset}"
end
end
tapped
end
HOMEBREW_LIBRARY.join("Formula/.gitignore").atomic_write(ignores.uniq.join("\n"))
end
private
def tap_args
ARGV.first =~ %r{^(\w+)/(homebrew-)?(\w+)$}
raise "Invalid usage" unless $1 and $3
[$1, $3]
end
end
class Pathname
def tap_ref
case self.to_s
when %r{^#{HOMEBREW_LIBRARY}/Taps/(\w+)-(\w+)/(.+)}
"#$1/#$2/#{File.basename($3, '.rb')}"
when %r{^#{HOMEBREW_LIBRARY}/Formula/(.+)}
"mxcl/master/#{File.basename($1, '.rb')}"
else
nil
end
end
end
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