File: find_executable.rb

package info (click to toggle)
ruby3.3 3.3.8-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 153,620 kB
  • sloc: ruby: 1,244,308; ansic: 836,474; yacc: 28,074; pascal: 6,748; sh: 3,913; python: 1,719; cpp: 1,158; makefile: 742; asm: 712; javascript: 394; lisp: 97; perl: 62; awk: 36; sed: 23; xml: 4
file content (22 lines) | stat: -rw-r--r-- 579 bytes parent folder | download | duplicates (18)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
# frozen_string_literal: true
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