1bad199776
A FormulaPin object is created every time Formula is instantiated, so don't do filesystem operations or Pathname concatenation eagerly.
39 lines
816 B
Ruby
39 lines
816 B
Ruby
require 'fileutils'
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class FormulaPin
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HOMEBREW_PINNED = HOMEBREW_LIBRARY+'PinnedKegs'
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def initialize(formula)
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@formula = formula
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@name = formula.name
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end
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def path
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HOMEBREW_PINNED+@name
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end
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def pin_at(version)
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HOMEBREW_PINNED.mkpath unless HOMEBREW_PINNED.exist?
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version_path = @formula.installed_prefix.parent.join(version)
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FileUtils.ln_s version_path, path unless pinned? or not version_path.exist?
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end
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def pin
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versions = @formula.installed_prefix.parent.children.map { |item| item.basename.to_s }
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version = versions.map { |item| Version.new(item) }.sort[0].to_s
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pin_at(version)
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end
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def unpin
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FileUtils.rm path if pinned?
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end
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def pinned?
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path.symlink?
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end
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def pinable?
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@formula.installed_prefix.parent.children.length > 0
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end
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end
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