test/build.py - external/github.com/WebAssembly/spec - Git at Google

 #!/usr/bin/env python3

 import argparse
 import sys
 import os
 import glob
 import subprocess
 import shutil
 import multiprocessing as mp

 SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
 INTERPRETER_DIR = os.path.join(SCRIPT_DIR, '..', 'interpreter')
 WASM_EXEC = os.path.join(INTERPRETER_DIR, 'wasm')

 WAST_TESTS_DIR = os.path.join(SCRIPT_DIR, 'core')
 HARNESS_DIR = os.path.join(SCRIPT_DIR, 'harness')

 HARNESS_FILES = ['testharness.js', 'testharnessreport.js', 'testharness.css']
 WPT_URL_PREFIX = '/resources'

 # Helpers.
 def run(*cmd):
     return subprocess.call(cmd,
                            stdout=subprocess.PIPE,
                            stderr=subprocess.STDOUT,
                            universal_newlines=True)

 # Preconditions.
 def ensure_remove_dir(path):
     if os.path.exists(path):
         shutil.rmtree(path)

 def ensure_empty_dir(path):
     ensure_remove_dir(path)
     os.mkdir(path)

 def compile_wasm_interpreter():
     print("Recompiling the wasm interpreter...")
     result = run('make', '-C', INTERPRETER_DIR, 'clean', 'default')
     if result != 0:
         print("Couldn't recompile wasm spec interpreter")
         sys.exit(1)
     print("Done!")

 def ensure_wasm_executable(path_to_wasm):
     """
     Ensure we have built the wasm spec interpreter.
     """
     result = run(path_to_wasm, '-v', '-e', '')
     if result != 0:
         print('Unable to run the wasm executable')
         sys.exit(1)

 # JS harness.
 def convert_one_wast_file(inputs):
     wast_file, js_file = inputs
     print('Compiling {} to JS...'.format(wast_file))
     return run(WASM_EXEC, wast_file, '-h', '-o', js_file)

 def convert_wast_to_js(out_js_dir):
     """Compile all the wast files to JS and store the results in the JS dir."""

     inputs = []

     for wast_file in glob.glob(os.path.join(WAST_TESTS_DIR, '*.wast')):
         # Don't try to compile tests that are supposed to fail.
         if '.fail.' in wast_file:
             continue

         js_filename = os.path.basename(wast_file) + '.js'
         js_file = os.path.join(out_js_dir, js_filename)
         inputs.append((wast_file, js_file))

     pool = mp.Pool(processes=8)
     for result in pool.imap_unordered(convert_one_wast_file, inputs):
         if result != 0:
             print('Error when compiling {} to JS: {}', wast_file, result.stdout)
     return [js_file for (wast_file, js_file) in inputs]

 def copy_harness_files(out_js_dir, include_harness):
     harness_dir = os.path.join(out_js_dir, 'harness')
     ensure_empty_dir(harness_dir)

     print('Copying JS test harness to the JS out dir...')
     for js_file in glob.glob(os.path.join(HARNESS_DIR, '*')):
         if os.path.basename(js_file) in HARNESS_FILES and not include_harness:
             continue
         shutil.copy(js_file, harness_dir)

 def build_js(out_js_dir):
     print('Building JS...')
     convert_wast_to_js(out_js_dir)
     copy_harness_files(out_js_dir, False)
     print('Done building JS.')

 # HTML harness.
 HTML_HEADER = """<!doctype html>
 <html>
     <head>
         <meta charset="UTF-8">
         <title>WebAssembly Web Platform Test</title>
     </head>
     <body>

         <script src={WPT_PREFIX}/testharness.js></script>
         <script src={WPT_PREFIX}/testharnessreport.js></script>
         <script src={PREFIX}/{JS_HARNESS}></script>

         <div id=log></div>
 """

 HTML_BOTTOM = """
     </body>
 </html>
 """

 def wrap_single_test(js_file):
     test_func_name = os.path.basename(js_file).replace('.', '_').replace('-', '_')

     content = "(function {}() {{\n".format(test_func_name)
     with open(js_file, 'r') as f:
         content += f.read()
     content += "reinitializeRegistry();\n})();\n"

     with open(js_file, 'w') as f:
         f.write(content)

 def build_html_js(out_dir):
     ensure_empty_dir(out_dir)
     copy_harness_files(out_dir, True)

     tests = convert_wast_to_js(out_dir)
     for js_file in tests:
         wrap_single_test(js_file)
     return tests

 def build_html_from_js(tests, html_dir, use_sync):
     for js_file in tests:
         js_filename = os.path.basename(js_file)
         html_filename = js_filename + '.html'
         html_file = os.path.join(html_dir, html_filename)
         js_harness = "sync_index.js" if use_sync else "async_index.js"
         with open(html_file, 'w+') as f:
             content = HTML_HEADER.replace('{PREFIX}', './js/harness') \
                                  .replace('{WPT_PREFIX}', './js/harness') \
                                  .replace('{JS_HARNESS}', js_harness)
             content += "        <script src=./js/{SCRIPT}></script>".replace('{SCRIPT}', js_filename)
             content += HTML_BOTTOM
             f.write(content)

 def build_html(html_dir, js_dir, use_sync):
     print("Building HTML tests...")

     js_html_dir = os.path.join(html_dir, 'js')

     tests = build_html_js(js_html_dir)

     print('Building WPT tests from JS tests...')
     build_html_from_js(tests, html_dir, use_sync)

     print("Done building HTML tests.")


 # Front page harness.
 def build_front_page(out_dir, js_dir, use_sync):
     print('Building front page containing all the HTML tests...')

     js_out_dir = os.path.join(out_dir, 'js')

     tests = build_html_js(js_out_dir)

     front_page = os.path.join(out_dir, 'index.html')
     js_harness = "sync_index.js" if use_sync else "async_index.js"
     with open(front_page, 'w+') as f:
         content = HTML_HEADER.replace('{PREFIX}', './js/harness') \
                              .replace('{WPT_PREFIX}', './js/harness')\
                              .replace('{JS_HARNESS}', js_harness)
         for js_file in tests:
             filename = os.path.basename(js_file)
             content += "        <script src=./js/{SCRIPT}></script>\n".replace('{SCRIPT}', filename)
         content += HTML_BOTTOM
         f.write(content)

     print('Done building front page!')

 # Main program.
 def process_args():
     parser = argparse.ArgumentParser(description="Helper tool to build the\
             multi-stage cross-browser test suite for WebAssembly.")

     parser.add_argument('--js',
                         dest="js_dir",
                         help="Relative path to the output directory for the pure JS tests.",
                         type=str)

     parser.add_argument('--html',
                         dest="html_dir",
                         help="Relative path to the output directory for the Web Platform tests.",
                         type=str)

     parser.add_argument('--front',
                         dest="front_dir",
                         help="Relative path to the output directory for the front page.",
                         type=str)

     parser.add_argument('--dont-recompile',
                         action="store_const",
                         dest="compile",
                         help="Don't recompile the wasm spec interpreter (by default, it is)",
                         const=False,
                         default=True)

     parser.add_argument('--use-sync',
                         action="store_const",
                         dest="use_sync",
                         help="Let the tests use the synchronous JS API (by default, it does not)",
                         const=True,
                         default=False)

     return parser.parse_args(), parser

 if __name__ == '__main__':
     args, parser = process_args()

     js_dir = args.js_dir
     html_dir = args.html_dir
     front_dir = args.front_dir

     if front_dir is None and js_dir is None and html_dir is None:
         print('At least one mode must be selected.\n')
         parser.print_help()
         sys.exit(1)

     if args.compile:
         compile_wasm_interpreter()

     ensure_wasm_executable(WASM_EXEC)

     if js_dir is not None:
         ensure_empty_dir(js_dir)
         build_js(js_dir)

     if html_dir is not None:
         ensure_empty_dir(html_dir)
         build_html(html_dir, js_dir, args.use_sync)

     if front_dir is not None:
         ensure_empty_dir(front_dir)
         build_front_page(front_dir, js_dir, args.use_sync)

     print('Done!')
	#!/usr/bin/env python3

	import argparse
	import sys
	import os
	import glob
	import subprocess
	import shutil
	import multiprocessing as mp

	SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
	INTERPRETER_DIR = os.path.join(SCRIPT_DIR, '..', 'interpreter')
	WASM_EXEC = os.path.join(INTERPRETER_DIR, 'wasm')

	WAST_TESTS_DIR = os.path.join(SCRIPT_DIR, 'core')
	HARNESS_DIR = os.path.join(SCRIPT_DIR, 'harness')

	HARNESS_FILES = ['testharness.js', 'testharnessreport.js', 'testharness.css']
	WPT_URL_PREFIX = '/resources'

	# Helpers.
	def run(*cmd):
	return subprocess.call(cmd,
	stdout=subprocess.PIPE,
	stderr=subprocess.STDOUT,
	universal_newlines=True)

	# Preconditions.
	def ensure_remove_dir(path):
	if os.path.exists(path):
	shutil.rmtree(path)

	def ensure_empty_dir(path):
	ensure_remove_dir(path)
	os.mkdir(path)

	def compile_wasm_interpreter():
	print("Recompiling the wasm interpreter...")
	result = run('make', '-C', INTERPRETER_DIR, 'clean', 'default')
	if result != 0:
	print("Couldn't recompile wasm spec interpreter")
	sys.exit(1)
	print("Done!")

	def ensure_wasm_executable(path_to_wasm):
	"""
	Ensure we have built the wasm spec interpreter.
	"""
	result = run(path_to_wasm, '-v', '-e', '')
	if result != 0:
	print('Unable to run the wasm executable')
	sys.exit(1)

	# JS harness.
	def convert_one_wast_file(inputs):
	wast_file, js_file = inputs
	print('Compiling {} to JS...'.format(wast_file))
	return run(WASM_EXEC, wast_file, '-h', '-o', js_file)

	def convert_wast_to_js(out_js_dir):
	"""Compile all the wast files to JS and store the results in the JS dir."""

	inputs = []

	for wast_file in glob.glob(os.path.join(WAST_TESTS_DIR, '*.wast')):
	# Don't try to compile tests that are supposed to fail.
	if '.fail.' in wast_file:
	continue

	js_filename = os.path.basename(wast_file) + '.js'
	js_file = os.path.join(out_js_dir, js_filename)
	inputs.append((wast_file, js_file))

	pool = mp.Pool(processes=8)
	for result in pool.imap_unordered(convert_one_wast_file, inputs):
	if result != 0:
	print('Error when compiling {} to JS: {}', wast_file, result.stdout)
	return [js_file for (wast_file, js_file) in inputs]

	def copy_harness_files(out_js_dir, include_harness):
	harness_dir = os.path.join(out_js_dir, 'harness')
	ensure_empty_dir(harness_dir)

	print('Copying JS test harness to the JS out dir...')
	for js_file in glob.glob(os.path.join(HARNESS_DIR, '*')):
	if os.path.basename(js_file) in HARNESS_FILES and not include_harness:
	continue
	shutil.copy(js_file, harness_dir)

	def build_js(out_js_dir):
	print('Building JS...')
	convert_wast_to_js(out_js_dir)
	copy_harness_files(out_js_dir, False)
	print('Done building JS.')

	# HTML harness.
	HTML_HEADER = """<!doctype html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>WebAssembly Web Platform Test</title>
	</head>
	<body>

	<script src={WPT_PREFIX}/testharness.js></script>
	<script src={WPT_PREFIX}/testharnessreport.js></script>
	<script src={PREFIX}/{JS_HARNESS}></script>

	<div id=log></div>
	"""

	HTML_BOTTOM = """
	</body>
	</html>
	"""

	def wrap_single_test(js_file):
	test_func_name = os.path.basename(js_file).replace('.', '_').replace('-', '_')

	content = "(function {}() {{\n".format(test_func_name)
	with open(js_file, 'r') as f:
	content += f.read()
	content += "reinitializeRegistry();\n})();\n"

	with open(js_file, 'w') as f:
	f.write(content)

	def build_html_js(out_dir):
	ensure_empty_dir(out_dir)
	copy_harness_files(out_dir, True)

	tests = convert_wast_to_js(out_dir)
	for js_file in tests:
	wrap_single_test(js_file)
	return tests

	def build_html_from_js(tests, html_dir, use_sync):
	for js_file in tests:
	js_filename = os.path.basename(js_file)
	html_filename = js_filename + '.html'
	html_file = os.path.join(html_dir, html_filename)
	js_harness = "sync_index.js" if use_sync else "async_index.js"
	with open(html_file, 'w+') as f:
	content = HTML_HEADER.replace('{PREFIX}', './js/harness') \
	.replace('{WPT_PREFIX}', './js/harness') \
	.replace('{JS_HARNESS}', js_harness)
	content += " <script src=./js/{SCRIPT}></script>".replace('{SCRIPT}', js_filename)
	content += HTML_BOTTOM
	f.write(content)

	def build_html(html_dir, js_dir, use_sync):
	print("Building HTML tests...")

	js_html_dir = os.path.join(html_dir, 'js')

	tests = build_html_js(js_html_dir)

	print('Building WPT tests from JS tests...')
	build_html_from_js(tests, html_dir, use_sync)

	print("Done building HTML tests.")


	# Front page harness.
	def build_front_page(out_dir, js_dir, use_sync):
	print('Building front page containing all the HTML tests...')

	js_out_dir = os.path.join(out_dir, 'js')

	tests = build_html_js(js_out_dir)

	front_page = os.path.join(out_dir, 'index.html')
	js_harness = "sync_index.js" if use_sync else "async_index.js"
	with open(front_page, 'w+') as f:
	content = HTML_HEADER.replace('{PREFIX}', './js/harness') \
	.replace('{WPT_PREFIX}', './js/harness')\
	.replace('{JS_HARNESS}', js_harness)
	for js_file in tests:
	filename = os.path.basename(js_file)
	content += " <script src=./js/{SCRIPT}></script>\n".replace('{SCRIPT}', filename)
	content += HTML_BOTTOM
	f.write(content)

	print('Done building front page!')

	# Main program.
	def process_args():
	parser = argparse.ArgumentParser(description="Helper tool to build the\
	multi-stage cross-browser test suite for WebAssembly.")

	parser.add_argument('--js',
	dest="js_dir",
	help="Relative path to the output directory for the pure JS tests.",
	type=str)

	parser.add_argument('--html',
	dest="html_dir",
	help="Relative path to the output directory for the Web Platform tests.",
	type=str)

	parser.add_argument('--front',
	dest="front_dir",
	help="Relative path to the output directory for the front page.",
	type=str)

	parser.add_argument('--dont-recompile',
	action="store_const",
	dest="compile",
	help="Don't recompile the wasm spec interpreter (by default, it is)",
	const=False,
	default=True)

	parser.add_argument('--use-sync',
	action="store_const",
	dest="use_sync",
	help="Let the tests use the synchronous JS API (by default, it does not)",
	const=True,
	default=False)

	return parser.parse_args(), parser

	if __name__ == '__main__':
	args, parser = process_args()

	js_dir = args.js_dir
	html_dir = args.html_dir
	front_dir = args.front_dir

	if front_dir is None and js_dir is None and html_dir is None:
	print('At least one mode must be selected.\n')
	parser.print_help()
	sys.exit(1)

	if args.compile:
	compile_wasm_interpreter()

	ensure_wasm_executable(WASM_EXEC)

	if js_dir is not None:
	ensure_empty_dir(js_dir)
	build_js(js_dir)

	if html_dir is not None:
	ensure_empty_dir(html_dir)
	build_html(html_dir, js_dir, args.use_sync)

	if front_dir is not None:
	ensure_empty_dir(front_dir)
	build_front_page(front_dir, js_dir, args.use_sync)

	print('Done!')