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|
# frozen_string_literal: true
module Byebug
module Helpers
#
# Utilities for interaction with executables
#
module BinHelper
#
# Cross-platform way of finding an executable in the $PATH.
# Adapted from: https://gist.github.com/steakknife/88b6c3837a5e90a08296
#
def which(cmd)
return File.expand_path(cmd) if File.exist?(cmd)
[nil, *search_paths].each do |path|
exe = find_executable(path, cmd)
return exe if exe
end
nil
end
def find_executable(path, cmd)
executable_file_extensions.each do |ext|
exe = File.expand_path(cmd + ext, path)
return exe if real_executable?(exe)
end
nil
end
def search_paths
ENV["PATH"].split(File::PATH_SEPARATOR)
end
def executable_file_extensions
ENV["PATHEXT"] ? ENV["PATHEXT"].split(";") : [""]
end
def real_executable?(file)
File.executable?(file) && !File.directory?(file)
end
end
end
end
|
