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When the first parameter to inreplace was an array, and the replacement failed, InreplaceError would end up crashing with an undefined method exception because the order of operations resulted in super not being passed the value of the entire inject block.
42 lines
1.3 KiB
Ruby
42 lines
1.3 KiB
Ruby
module Utils
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class InreplaceError < RuntimeError
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def initialize(errors)
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formatted_errors = errors.inject("inreplace failed\n") do |s, (path, errs)|
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s << "#{path}:\n" << errs.map { |e| " #{e}\n" }.join
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end
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super formatted_errors
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end
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end
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module Inreplace
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# Sometimes we have to change a bit before we install. Mostly we
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# prefer a patch but if you need the `prefix` of this formula in the
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# patch you have to resort to `inreplace`, because in the patch
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# you don't have access to any var defined by the formula. Only
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# HOMEBREW_PREFIX is available in the embedded patch.
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# inreplace supports regular expressions.
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# <pre>inreplace "somefile.cfg", /look[for]what?/, "replace by #{bin}/tool"</pre>
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def inreplace(paths, before = nil, after = nil, audit_result = true)
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errors = {}
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Array(paths).each do |path|
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s = File.open(path, "rb", &:read).extend(StringInreplaceExtension)
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if before.nil? && after.nil?
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yield s
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else
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after = after.to_s if after.is_a? Symbol
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s.gsub!(before, after, audit_result)
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end
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errors[path] = s.errors unless s.errors.empty?
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Pathname(path).atomic_write(s)
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end
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raise InreplaceError, errors unless errors.empty?
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end
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module_function :inreplace
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end
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end
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