Commit 96937b7a authored by Michael Kozono's avatar Michael Kozono
Browse files

Backport `which` from EE

parent e7682ca71820
......@@ -46,5 +46,22 @@ def boolean_to_yes_no(bool)
def random_string
Random.rand(Float::MAX.to_i).to_s(36)
end
# See: http://stackoverflow.com/questions/2108727/which-in-ruby-checking-if-program-exists-in-path-from-ruby
# Cross-platform way of finding an executable in the $PATH.
#
# which('ruby') #=> /usr/bin/ruby
def which(cmd, env = ENV)
exts = env['PATHEXT'] ? env['PATHEXT'].split(';') : ['']
env['PATH'].split(File::PATH_SEPARATOR).each do |path|
exts.each do |ext|
exe = File.join(path, "#{cmd}#{ext}")
return exe if File.executable?(exe) && !File.directory?(exe)
end
end
nil
end
end
end
require 'spec_helper'
describe Gitlab::Utils do
delegate :to_boolean, :boolean_to_yes_no, :slugify, :random_string, to: :described_class
delegate :to_boolean, :boolean_to_yes_no, :slugify, :random_string, :which, to: :described_class
describe '.slugify' do
{
......@@ -59,4 +59,12 @@
expect(random_string).to be_kind_of(String)
end
end
describe '.which' do
it 'finds the full path to an executable binary' do
expect(File).to receive(:executable?).with('/bin/sh').and_return(true)
expect(which('sh', 'PATH' => '/bin')).to eq('/bin/sh')
end
end
end
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