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run_meson_command_tests.py
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run_meson_command_tests.py
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#!/usr/bin/env python3
# Copyright 2018 The Meson development team
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import tempfile
import unittest
import subprocess
from pathlib import Path
from mesonbuild.mesonlib import windows_proof_rmtree, python_command, is_windows
# Find the meson.py adjacent to us
meson_py = Path(__file__).resolve().parent / 'meson.py'
if not meson_py.is_file():
raise RuntimeError("meson.py not found: test must only run from git")
def get_pypath():
import sysconfig
pypath = sysconfig.get_path('purelib', vars={'base': ''})
# Ensure that / is the path separator and not \, then strip /
return Path(pypath).as_posix().strip('/')
def get_pybindir():
import sysconfig
# 'Scripts' on Windows and 'bin' on other platforms including MSYS
return sysconfig.get_path('scripts', vars={'base': ''}).strip('\\/')
class CommandTests(unittest.TestCase):
'''
Test that running meson in various ways works as expected by checking the
value of mesonlib.meson_command that was set during configuration.
'''
def setUp(self):
super().setUp()
self.orig_env = os.environ.copy()
self.orig_dir = os.getcwd()
os.environ['MESON_COMMAND_TESTS'] = '1'
self.tmpdir = Path(tempfile.mkdtemp()).resolve()
self.src_root = Path(__file__).resolve().parent
self.testdir = str(self.src_root / 'test cases/common/1 trivial')
self.meson_args = ['--backend=ninja']
def tearDown(self):
try:
windows_proof_rmtree(str(self.tmpdir))
except FileNotFoundError:
pass
os.environ.clear()
os.environ.update(self.orig_env)
os.chdir(str(self.orig_dir))
super().tearDown()
def _run(self, command, workdir=None):
'''
Run a command while printing the stdout and stderr to stdout,
and also return a copy of it
'''
# If this call hangs CI will just abort. It is very hard to distinguish
# between CI issue and test bug in that case. Set timeout and fail loud
# instead.
p = subprocess.run(command, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT, env=os.environ.copy(),
universal_newlines=True, cwd=workdir, timeout=60 * 5)
print(p.stdout)
if p.returncode != 0:
raise subprocess.CalledProcessError(p.returncode, command)
return p.stdout
def assertMesonCommandIs(self, line, cmd):
self.assertTrue(line.startswith('meson_command '), msg=line)
self.assertEqual(line, 'meson_command is {!r}'.format(cmd))
def test_meson_uninstalled(self):
# This is what the meson command must be for all these cases
resolved_meson_command = python_command + [str(self.src_root / 'meson.py')]
# Absolute path to meson.py
os.chdir('/')
builddir = str(self.tmpdir / 'build1')
meson_py = str(self.src_root / 'meson.py')
meson_setup = [meson_py, 'setup']
meson_command = python_command + meson_setup + self.meson_args
stdo = self._run(meson_command + [self.testdir, builddir])
self.assertMesonCommandIs(stdo.split('\n')[0], resolved_meson_command)
# ./meson.py
os.chdir(str(self.src_root))
builddir = str(self.tmpdir / 'build2')
meson_py = './meson.py'
meson_setup = [meson_py, 'setup']
meson_command = python_command + meson_setup + self.meson_args
stdo = self._run(meson_command + [self.testdir, builddir])
self.assertMesonCommandIs(stdo.split('\n')[0], resolved_meson_command)
# Symlink to meson.py
if is_windows():
# Symlinks require admin perms
return
os.chdir(str(self.src_root))
builddir = str(self.tmpdir / 'build3')
# Create a symlink to meson.py in bindir, and add it to PATH
bindir = (self.tmpdir / 'bin')
bindir.mkdir()
(bindir / 'meson').symlink_to(self.src_root / 'meson.py')
os.environ['PATH'] = str(bindir) + os.pathsep + os.environ['PATH']
# See if it works!
meson_py = 'meson'
meson_setup = [meson_py, 'setup']
meson_command = meson_setup + self.meson_args
stdo = self._run(meson_command + [self.testdir, builddir])
self.assertMesonCommandIs(stdo.split('\n')[0], resolved_meson_command)
def test_meson_installed(self):
# Install meson
prefix = self.tmpdir / 'prefix'
pylibdir = prefix / get_pypath()
bindir = prefix / get_pybindir()
pylibdir.mkdir(parents=True)
os.environ['PYTHONPATH'] = str(pylibdir)
os.environ['PATH'] = str(bindir) + os.pathsep + os.environ['PATH']
self._run(python_command + ['setup.py', 'install', '--prefix', str(prefix)])
self.assertTrue(pylibdir.is_dir())
self.assertTrue(bindir.is_dir())
# Run `meson`
os.chdir('/')
if is_windows():
resolved_meson_command = python_command + [str(bindir / 'meson.py')]
else:
resolved_meson_command = python_command + [str(bindir / 'meson')]
# The python configuration on appveyor does not register .py as
# a valid extension, so we cannot run `meson` on Windows.
builddir = str(self.tmpdir / 'build1')
meson_setup = ['meson', 'setup']
meson_command = meson_setup + self.meson_args
stdo = self._run(meson_command + [self.testdir, builddir])
self.assertMesonCommandIs(stdo.split('\n')[0], resolved_meson_command)
# Run `/path/to/meson`
builddir = str(self.tmpdir / 'build2')
if is_windows():
# Cannot run .py directly because of the appveyor configuration,
# and the script is named meson.py, not meson
meson_setup = python_command + [str(bindir / 'meson.py'), 'setup']
else:
meson_setup = [str(bindir / 'meson'), 'setup']
meson_command = meson_setup + self.meson_args
stdo = self._run(meson_command + [self.testdir, builddir])
self.assertMesonCommandIs(stdo.split('\n')[0], resolved_meson_command)
# Run `python3 -m mesonbuild.mesonmain`
resolved_meson_command = python_command + ['-m', 'mesonbuild.mesonmain']
builddir = str(self.tmpdir / 'build3')
meson_setup = ['-m', 'mesonbuild.mesonmain', 'setup']
meson_command = python_command + meson_setup + self.meson_args
stdo = self._run(meson_command + [self.testdir, builddir])
self.assertMesonCommandIs(stdo.split('\n')[0], resolved_meson_command)
if is_windows():
# Next part requires a shell
return
# `meson` is a wrapper to `meson.real`
resolved_meson_command = python_command + [str(bindir / 'meson.real')]
builddir = str(self.tmpdir / 'build4')
(bindir / 'meson').rename(bindir / 'meson.real')
wrapper = (bindir / 'meson')
with open(wrapper, 'w') as f:
f.write('#!/bin/sh\n\nmeson.real "$@"')
wrapper.chmod(0o755)
meson_setup = [str(wrapper), 'setup']
meson_command = meson_setup + self.meson_args
stdo = self._run(meson_command + [self.testdir, builddir])
self.assertMesonCommandIs(stdo.split('\n')[0], resolved_meson_command)
def test_meson_exe_windows(self):
raise unittest.SkipTest('NOT IMPLEMENTED')
if __name__ == '__main__':
unittest.main(buffer=True)