Backport `which` from EE
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@ -46,5 +46,22 @@ module Gitlab
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def random_string
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Random.rand(Float::MAX.to_i).to_s(36)
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end
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# See: http://stackoverflow.com/questions/2108727/which-in-ruby-checking-if-program-exists-in-path-from-ruby
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# Cross-platform way of finding an executable in the $PATH.
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#
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# which('ruby') #=> /usr/bin/ruby
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def which(cmd, env = ENV)
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exts = env['PATHEXT'] ? env['PATHEXT'].split(';') : ['']
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env['PATH'].split(File::PATH_SEPARATOR).each do |path|
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exts.each do |ext|
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exe = File.join(path, "#{cmd}#{ext}")
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return exe if File.executable?(exe) && !File.directory?(exe)
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end
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end
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nil
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end
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end
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end
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@ -1,7 +1,7 @@
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require 'spec_helper'
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describe Gitlab::Utils do
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delegate :to_boolean, :boolean_to_yes_no, :slugify, :random_string, to: :described_class
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delegate :to_boolean, :boolean_to_yes_no, :slugify, :random_string, :which, to: :described_class
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describe '.slugify' do
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{
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@ -59,4 +59,12 @@ describe Gitlab::Utils do
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expect(random_string).to be_kind_of(String)
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end
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end
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describe '.which' do
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it 'finds the full path to an executable binary' do
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expect(File).to receive(:executable?).with('/bin/sh').and_return(true)
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expect(which('sh', 'PATH' => '/bin')).to eq('/bin/sh')
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end
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end
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end
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