Newer versions of emscipten, starting all the way back in 1.39.13, can automatically locate the `.emscripten` config file that emsdk creates so there is no need for the explicit EM_CONFIG environment variable. Its redundant and adds unnessary noisce/complexity. Really, adding emcc to the PATH is all the is needed these days. One nice thing about this change is that it allows folks to run whichever emcc they want to and have it just work, even if they have configured emsdk. Without this change, if I activate emsdk and I run `some/other/emcc` then emsdk's `EM_CONFIG` will still be present and override the configuration embedded in `some/other/emcc`. e.g. in the same shell, with emsdk activated, I can run both these commands and have them both just work as expected. ``` $ emcc --version $ /path/to/my/emcc --version ```
307 lines
11 KiB
Python
Executable File
307 lines
11 KiB
Python
Executable File
#!/usr/bin/env python3
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import json
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import os
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import shutil
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import subprocess
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import sys
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import tempfile
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import unittest
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WINDOWS = sys.platform.startswith('win')
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MACOS = sys.platform == 'darwin'
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emconfig = os.path.abspath('.emscripten')
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assert os.path.exists(emconfig)
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upstream_emcc = os.path.join('upstream', 'emscripten', 'emcc')
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fastcomp_emcc = os.path.join('fastcomp', 'emscripten', 'emcc')
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emsdk = './emsdk'
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if WINDOWS:
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upstream_emcc += '.bat'
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fastcomp_emcc += '.bat'
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emsdk = 'emsdk.bat'
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else:
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emsdk = './emsdk'
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# Utilities
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def listify(x):
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if type(x) == list or type(x) == tuple:
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return x
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return [x]
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def check_call(cmd, **args):
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if type(cmd) != list:
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cmd = cmd.split()
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print('running: %s' % cmd)
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args['universal_newlines'] = True
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subprocess.check_call(cmd, **args)
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def checked_call_with_output(cmd, expected=None, unexpected=None, stderr=None, env=None):
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cmd = cmd.split(' ')
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print('running: %s' % cmd)
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try:
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stdout = subprocess.check_output(cmd, stderr=stderr, universal_newlines=True, env=env)
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except subprocess.CalledProcessError as e:
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print(e.stderr)
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print(e.stdout)
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raise e
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if expected:
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for x in listify(expected):
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assert x in stdout, 'expected output missing: ' + stdout + '\n[[[' + x + ']]]'
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if unexpected:
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for x in listify(unexpected):
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assert x not in stdout, 'unexpected output present: ' + stdout + '\n[[[' + x + ']]]'
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def failing_call_with_output(cmd, expected, env=None):
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proc = subprocess.Popen(cmd.split(' '), stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True, env=env)
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stdout, stderr = proc.communicate()
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if WINDOWS:
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print('warning: skipping part of failing_call_with_output() due to error codes not being propagated (see #592)')
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else:
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assert proc.returncode, 'call must have failed: ' + str([stdout, '\n========\n', stderr])
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assert expected in stdout or expected in stderr, 'call did not have the expected output: %s: %s' % (expected, str([stdout, '\n========\n', stderr]))
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def hack_emsdk(marker, replacement):
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with open('emsdk.py') as f:
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src = f.read()
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assert marker in src
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src = src.replace(marker, replacement)
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name = '__test_emsdk'
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with open(name, 'w') as f:
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f.write(src)
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return name
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# Set up
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TAGS = json.loads(open('emscripten-releases-tags.json').read())
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# Tests
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def do_lib_building(emcc):
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cache_building_messages = ['generating system library: ']
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def do_build(args, is_expected=None):
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unexpected = None
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expected = None
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if is_expected is True:
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expected = cache_building_messages
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elif is_expected is False:
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unexpected = cache_building_messages
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checked_call_with_output(emcc + ' hello_world.c' + args,
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expected=expected,
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unexpected=unexpected,
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stderr=subprocess.STDOUT)
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# The emsdk ships all system libraries so we don't expect to see any
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# cache population unless we explicly --clear-cache.
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do_build('', is_expected=False)
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check_call(emcc + ' --clear-cache')
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do_build(' -O2', is_expected=True)
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# Do another build at -O0. In nwers SDK versions this generates
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# different libs, but not in older ones so don't assert here.
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do_build('')
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# Now verify that libs are *not* build
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do_build(' -s WASM=0', is_expected=False)
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do_build(' -O2 -s WASM=0', is_expected=False)
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def run_emsdk(cmd):
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if type(cmd) != list:
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cmd = cmd.split()
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check_call([emsdk] + cmd)
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class Emsdk(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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with open('hello_world.c', 'w') as f:
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f.write('''\
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#include <stdio.h>
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int main() {
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printf("Hello, world!\\n");
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return 0;
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}
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''')
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def setUp(self):
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run_emsdk('install latest')
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run_emsdk('activate latest')
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def test_unknown_arch(self):
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env = os.environ.copy()
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env['EMSDK_ARCH'] = 'mips'
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failing_call_with_output(emsdk + ' install latest',
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expected='unknown machine architecture: mips',
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env=env)
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def test_wrong_bitness(self):
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env = os.environ.copy()
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env['EMSDK_ARCH'] = 'x86'
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failing_call_with_output(emsdk + ' install sdk-latest-64bit',
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expected='is only provided for 64-bit OSe',
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env=env)
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def test_already_installed(self):
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# Test we don't re-download unnecessarily
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checked_call_with_output(emsdk + ' install latest', expected='already installed', unexpected='Downloading:')
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def test_list(self):
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# Test we report installed tools properly. The latest version should be
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# installed, but not some random old one.
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checked_call_with_output(emsdk + ' list', expected=TAGS['aliases']['latest'] + ' INSTALLED', unexpected='1.39.15 INSTALLED:')
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def test_config_contents(self):
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print('test .emscripten contents')
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with open(emconfig) as f:
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config = f.read()
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assert 'fastcomp' not in config
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assert 'upstream' in config
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def test_lib_building(self):
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print('building proper system libraries')
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do_lib_building(upstream_emcc)
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def test_fastcomp(self):
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print('test the last fastcomp release')
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run_emsdk('install 1.40.1-fastcomp')
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run_emsdk('activate 1.40.1-fastcomp')
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do_lib_building(fastcomp_emcc)
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with open(emconfig) as f:
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config = f.read()
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assert config.count('LLVM_ROOT') == 1
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assert 'upstream' not in config
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assert 'fastcomp' in config
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print('verify latest fastcomp version is fixed at 1.40.1')
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checked_call_with_output(fastcomp_emcc + ' -v', '1.40.1', stderr=subprocess.STDOUT)
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def test_fastcomp_missing(self):
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print('verify that attempting to use newer fastcomp gives an error')
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fastcomp_error = 'the fastcomp backend is not getting new builds or releases. Please use the upstream llvm backend or use an older version than 2.0.0 (such as 1.40.1).'
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failing_call_with_output(emsdk + ' install latest-fastcomp', fastcomp_error)
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failing_call_with_output(emsdk + ' install tot-fastcomp', fastcomp_error)
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failing_call_with_output(emsdk + ' install 2.0.0-fastcomp', fastcomp_error)
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def test_redownload(self):
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print('go back to using upstream')
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run_emsdk('activate latest')
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# Test the normal tools like node don't re-download on re-install
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print('another install must re-download')
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checked_call_with_output(emsdk + ' uninstall node-14.18.2-64bit')
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checked_call_with_output(emsdk + ' install node-14.18.2-64bit', expected='Downloading:', unexpected='already installed')
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checked_call_with_output(emsdk + ' install node-14.18.2-64bit', unexpected='Downloading:', expected='already installed')
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def test_tot_upstream(self):
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print('test update-tags')
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run_emsdk('update-tags')
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print('test tot-upstream')
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run_emsdk('install tot-upstream')
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with open(emconfig) as f:
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config = f.read()
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run_emsdk('activate tot-upstream')
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with open(emconfig + '.old') as f:
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old_config = f.read()
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self.assertEqual(config, old_config)
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# TODO; test on latest as well
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check_call(upstream_emcc + ' hello_world.c')
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def test_closure(self):
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# Specificlly test with `--closure` so we know that node_modules is working
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check_call(upstream_emcc + ' hello_world.c --closure=1')
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def test_specific_old(self):
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print('test specific release (old, using sdk-* notation)')
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run_emsdk('install sdk-fastcomp-1.38.31-64bit')
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run_emsdk('activate sdk-fastcomp-1.38.31-64bit')
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def test_specific_version(self):
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print('test specific release (new, short name)')
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run_emsdk('install 1.38.33')
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print('another install, but no need for re-download')
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checked_call_with_output(emsdk + ' install 1.38.33', expected='Skipped', unexpected='Downloading:')
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run_emsdk('activate 1.38.33')
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with open(emconfig) as f:
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config = f.read()
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assert 'upstream' not in config
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assert 'fastcomp' in config
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def test_specific_version_full(self):
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print('test specific release (new, full name)')
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run_emsdk('install sdk-1.38.33-upstream-64bit')
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run_emsdk('activate sdk-1.38.33-upstream-64bit')
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print('test specific release (new, tag name)')
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run_emsdk('install sdk-tag-1.38.33-64bit')
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run_emsdk('activate sdk-tag-1.38.33-64bit')
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def test_binaryen_from_source(self):
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if MACOS:
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self.skipTest("https://github.com/WebAssembly/binaryen/issues/4299")
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print('test binaryen source build')
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run_emsdk(['install', '--build=Release', '--generator=Unix Makefiles', 'binaryen-main-64bit'])
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def test_no_32bit(self):
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print('test 32-bit error')
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emsdk_hacked = hack_emsdk('not is_os_64bit()', 'True')
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failing_call_with_output('python %s install latest' % emsdk_hacked, 'this tool is only provided for 64-bit OSes')
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os.remove(emsdk_hacked)
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def test_update_no_git(self):
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print('test non-git update')
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temp_dir = tempfile.mkdtemp()
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for filename in os.listdir('.'):
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if not filename.startswith('.') and not os.path.isdir(filename):
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shutil.copy2(filename, os.path.join(temp_dir, filename))
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olddir = os.getcwd()
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try:
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os.chdir(temp_dir)
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run_emsdk('update')
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print('second time')
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run_emsdk('update')
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finally:
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os.chdir(olddir)
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def test_install_arbitrary(self):
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# Test that its possible to install arbrary emscripten-releases SDKs
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run_emsdk('install 5c776e6a91c0cb8edafca16a652ee1ee48f4f6d2')
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# Check that its not re-downloaded
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checked_call_with_output(emsdk + ' install 5c776e6a91c0cb8edafca16a652ee1ee48f4f6d2', expected='Skipped', unexpected='Downloading:')
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def test_install_tool(self):
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# Test that its possible to install emscripten as tool instead of SDK
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checked_call_with_output(emsdk + ' install releases-upstream-77b065ace39e6ab21446e13f92897f956c80476a', unexpected='Installing SDK')
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def test_activate_missing(self):
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run_emsdk('install latest')
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failing_call_with_output(emsdk + ' activate 2.0.1', expected="error: tool is not installed and therefore cannot be activated: 'releases-upstream-13e29bd55185e3c12802bc090b4507901856b2ba-64bit'")
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def test_keep_downloads(self):
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env = os.environ.copy()
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env['EMSDK_KEEP_DOWNLOADS'] = '1'
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# With EMSDK_KEEP_DOWNLOADS the downloading should happen on the first
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# install of 2.0.28, and again when we install 2.0.29, but not on the
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# second install of 2.0.28 because the zip should already be local.
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shutil.rmtree('zips')
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checked_call_with_output(emsdk + ' install 2.0.28', expected='Downloading:', env=env)
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checked_call_with_output(emsdk + ' install 2.0.29', expected='Downloading:', env=env)
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checked_call_with_output(emsdk + ' install 2.0.28', expected='already downloaded, skipping', unexpected='Downloading:', env=env)
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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