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1#!/usr/bin/env python3
2
3import sys, os, subprocess, tempfile, shutil
4
5
6def cmd (command):
7	# https://stackoverflow.com/a/4408409 as we might have huge output sometimes
8	with tempfile.TemporaryFile () as tempf:
9		p = subprocess.Popen (command, stderr=tempf)
10
11		try:
12			p.wait ()
13			tempf.seek (0)
14			text = tempf.read ()
15
16			#TODO: Detect debug mode with a better way
17			is_debug_mode = b"SANITIZE" in text
18
19			return ("" if is_debug_mode else text.decode ("utf-8").strip ()), p.returncode
20		except subprocess.TimeoutExpired:
21			return 'error: timeout, ' + ' '.join (command), 1
22
23
24srcdir = os.getenv ("srcdir", ".")
25EXEEXT = os.getenv ("EXEEXT", "")
26top_builddir = os.getenv ("top_builddir", ".")
27hb_subset_fuzzer = os.path.join (top_builddir, "hb-subset-fuzzer" + EXEEXT)
28
29if not os.path.exists (hb_subset_fuzzer):
30        if len (sys.argv) < 2 or not os.path.exists (sys.argv[1]):
31                sys.exit ("""Failed to find hb-subset-fuzzer binary automatically,
32please provide it as the first argument to the tool""")
33
34        hb_subset_fuzzer = sys.argv[1]
35
36print ('hb_subset_fuzzer:', hb_subset_fuzzer)
37fails = 0
38
39valgrind = None
40if os.getenv ('RUN_VALGRIND', ''):
41	valgrind = shutil.which ('valgrind')
42	if valgrind is None:
43		sys.exit ("""Valgrind requested but not found.""")
44
45def run_dir (parent_path):
46	global fails
47	for file in os.listdir (parent_path):
48		path = os.path.join(parent_path, file)
49		# TODO: Run on all the fonts not just subset related ones
50		if "subset" not in path: continue
51
52		print ("running subset fuzzer against %s" % path)
53		if valgrind:
54			text, returncode = cmd ([valgrind, '--leak-check=full', '--error-exitcode=1', hb_subset_fuzzer, path])
55		else:
56			text, returncode = cmd ([hb_subset_fuzzer, path])
57			if 'error' in text:
58				returncode = 1
59
60		if (not valgrind or returncode) and text.strip ():
61			print (text)
62
63		if returncode != 0:
64			print ("failed for %s" % path)
65			fails = fails + 1
66
67
68run_dir (os.path.join (srcdir, "..", "subset", "data", "fonts"))
69run_dir (os.path.join (srcdir, "fonts"))
70
71if fails:
72	sys.exit ("%d subset fuzzer related tests failed." % fails)
73