llvm/test/Other/ChangePrinters/lit.local.cfg

   1 import os
   2 import subprocess
   3
   4
   5 def have_needed_diff_support():
   6     if not os.path.exists("/usr/bin/diff"):
   7         return False
   8
   9     ld_cmd = subprocess.Popen(
  10         ["/usr/bin/diff", "--help"],
  11         stdout=subprocess.PIPE,
  12         stderr=subprocess.STDOUT,
  13         env={"LANG": "C"},
  14     )
  15     ld_out = ld_cmd.stdout.read().decode()
  16     ld_cmd.wait()
  17
  18     return "-line-format" in ld_out
  19
  20
  21 if not have_needed_diff_support():
  22     config.unsupported = True