Exception: FormulaConflictError

Inherits:
RuntimeError
  • Object
show all
Defined in:
Library/Homebrew/exceptions.rb

Overview

Raised when a formula conflicts with another one.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(formula, conflicts) ⇒ FormulaConflictError

Returns a new instance of FormulaConflictError.


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# File 'Library/Homebrew/exceptions.rb', line 332

def initialize(formula, conflicts)
  @formula = formula
  @conflicts = conflicts
  super message
end

Instance Attribute Details

#conflictsObject (readonly)

Returns the value of attribute conflicts


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# File 'Library/Homebrew/exceptions.rb', line 330

def conflicts
  @conflicts
end

#formulaObject (readonly)

Returns the value of attribute formula


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# File 'Library/Homebrew/exceptions.rb', line 330

def formula
  @formula
end

Instance Method Details

#conflict_message(conflict) ⇒ Object


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# File 'Library/Homebrew/exceptions.rb', line 338

def conflict_message(conflict)
  message = []
  message << "  #{conflict.name}"
  message << ": because #{conflict.reason}" if conflict.reason
  message.join
end

#messageObject


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# File 'Library/Homebrew/exceptions.rb', line 345

def message
  message = []
  message << "Cannot install #{formula.full_name} because conflicting formulae are installed."
  message.concat conflicts.map { |c| conflict_message(c) } << ""
  message << <<~EOS
    Please `brew unlink #{conflicts.map(&:name) * " "}` before continuing.

    Unlinking removes a formula's symlinks from #{HOMEBREW_PREFIX}. You can
    link the formula again after the install finishes. You can --force this
    install, but the build may fail or cause obscure side effects in the
    resulting software.
  EOS
  message.join("\n")
end