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ruby--ruby/test/ruby/find_executable.rb
nobu a560c2086a test/ruby/find_executable.rb
* test/ruby/test_rubyoptions.rb (test_program_name): use expected
  ps command from PATH.

* test/ruby/find_executable.rb (EnvUtil#find_executable): find
  expected executable path with argument and output pattern.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46751 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-07-07 08:42:57 +00:00

19 lines
529 B
Ruby

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