Adam Vandenberg 6b1a8be58e External command "brew which"
A work-in-progress command, "brew which" will show which versions of formulae
you have installed based on what symlinks exist from HOMEBREW_PREFIX back into
the Cellar.

Thus, if you happen to have symlinks into two different versions of a brew in
the Cellar (typically an error), both of those versions will be listed.

This is a diagnostic command, but some of this code will be the basis for
possible future better handling of multiple-versions-at-once.
2010-07-08 22:41:51 -07:00

54 lines
1.1 KiB
Ruby
Executable File

require 'extend/pathname'
REAL_CELLAR = HOMEBREW_CELLAR.realpath
class String
def starts_with?(prefix)
prefix = prefix.to_s
self[0, prefix.length] == prefix
end
end
class Pathname
def starts_with?(prefix)
prefix = prefix.to_s
self.to_s[0, prefix.length] == prefix
end
end
def audit
brew_links = Array.new
version_map = Hash.new
# paths=%w[bin sbin etc lib include share].collect {|d| HOMEBREW_PREFIX+d}
paths=%w[bin].collect {|d| HOMEBREW_PREFIX+d}
paths.each do |path|
path.find do |path|
next unless path.symlink? && path.resolved_path_exists?
brew_links << Pathname.new(path.realpath)
end
end
brew_links = brew_links.collect{|p|p.relative_path_from(REAL_CELLAR).to_s}.reject{|p|p.starts_with?("../")}
brew_links.each do |p|
parts = p.split("/")
next if parts.count < 2 # Shouldn't happen
brew = parts.shift
version = parts.shift
versions = version_map[brew] || []
versions << version unless versions.include? version
version_map[brew] = versions
end
return version_map
end
brews = audit
brews.keys.sort.each do |b|
puts "#{b}: #{brews[b].sort*' '}"
end
puts