From 01dda86681385f1eb55e4d4494bfc264a2a3c968 Mon Sep 17 00:00:00 2001
From: Hiroshi SHIBATA <hsbt@ruby-lang.org>
Date: Mon, 10 May 2021 18:10:13 +0900
Subject: Import test assertions from ruby/ruby

---
 test/lib/find_executable.rb | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 test/lib/find_executable.rb

(limited to 'test/lib/find_executable.rb')

diff --git a/test/lib/find_executable.rb b/test/lib/find_executable.rb
new file mode 100644
index 0000000..89c6fb8
--- /dev/null
+++ b/test/lib/find_executable.rb
@@ -0,0 +1,22 @@
+# 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
-- 
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