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ruby--ruby/test/lib/find_executable.rb
naruse 3e92b635fb Add frozen_string_literal: false for all files
When you change this to true, you may need to add more tests.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-16 05:07:31 +00:00

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Ruby

# frozen_string_literal: false
require "rbconfig"
module EnvUtil
def find_executable(cmd, *args)
exts = RbConfig::CONFIG["EXECUTABLE_EXTS"].split | [RbConfig::CONFIG["EXEEXT"]]
ENV["PATH"].split(File::PATH_SEPARATOR).each do |path|
next if path.empty?
path = File.join(path, cmd)
exts.each do |ext|
cmdline = [path + ext, *args]
begin
return cmdline if yield(IO.popen(cmdline, "r", err: [:child, :out], &:read))
rescue
next
end
end
end
nil
end
module_function :find_executable
end