6a0dcc8324
Everything that used HOMEBREW_CELLAR/canonical_name could point to something that doesn't exist because loader_for tries to load new name formula if no old name found. However there can be software installed from path with the same name that renamed formulae had and we still need to link/unlink/uninstall etc that software. The solution is Formulary#to_rack method that returns rack for given name. - Add Formulary#to_rack - Update ARGV.kegs - Update cmd/switch
50 lines
1.0 KiB
Ruby
50 lines
1.0 KiB
Ruby
require "formula"
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require "keg"
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require "cmd/link"
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module Homebrew
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def switch
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if ARGV.named.length != 2
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onoe "Usage: brew switch <name> <version>"
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exit 1
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end
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name = ARGV.shift
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version = ARGV.shift
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rack = Formulary.to_rack(name)
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unless rack.directory?
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onoe "#{name} not found in the Cellar."
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exit 2
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end
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# Does the target version exist?
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unless (rack+version).directory?
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onoe "#{name} does not have a version \"#{version}\" in the Cellar."
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versions = rack.subdirs.map { |d| Keg.new(d).version }
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puts "Versions available: #{versions.join(", ")}"
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exit 3
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end
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# Unlink all existing versions
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rack.subdirs.each do |v|
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keg = Keg.new(v)
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puts "Cleaning #{keg}"
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keg.unlink
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end
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keg = Keg.new(rack+version)
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# Link new version, if not keg-only
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if keg_only?(rack)
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keg.optlink
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puts "Opt link created for #{keg}"
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else
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puts "#{keg.link} links created for #{keg}"
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end
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end
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end
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