The Meson Build System
http://mesonbuild.com/
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101 lines
3.1 KiB
101 lines
3.1 KiB
3 years ago
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import os
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import subprocess
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import json
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import pathlib
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import shutil
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import tempfile
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from .. import mlog
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from .universal import MesonException, is_windows
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bat_template = '''@ECHO OFF
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call "{}"
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ECHO {}
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SET
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'''
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# If on Windows and VS is installed but not set up in the environment,
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# set it to be runnable. In this way Meson can be directly invoked
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# from any shell, VS Code etc.
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def _setup_vsenv(force: bool) -> bool:
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if not is_windows():
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return False
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if os.environ.get('OSTYPE') == 'cygwin':
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return False
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if 'Visual Studio' in os.environ['PATH']:
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return False
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# VSINSTALL is set when running setvars from a Visual Studio installation
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# Tested with Visual Studio 2012 and 2017
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if 'VSINSTALLDIR' in os.environ:
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return False
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# Check explicitly for cl when on Windows
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if shutil.which('cl.exe'):
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return False
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if not force:
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if shutil.which('cc'):
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return False
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if shutil.which('gcc'):
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return False
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if shutil.which('clang'):
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return False
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if shutil.which('clang-cl'):
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return False
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root = os.environ.get("ProgramFiles(x86)") or os.environ.get("ProgramFiles")
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bat_locator_bin = pathlib.Path(root, 'Microsoft Visual Studio/Installer/vswhere.exe')
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if not bat_locator_bin.exists():
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raise MesonException(f'Could not find {bat_locator_bin}')
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bat_json = subprocess.check_output(
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[
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str(bat_locator_bin),
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'-latest',
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'-prerelease',
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'-requiresAny',
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'-requires', 'Microsoft.VisualStudio.Component.VC.Tools.x86.x64',
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'-products', '*',
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'-utf8',
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'-format',
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'json'
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]
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)
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bat_info = json.loads(bat_json)
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if not bat_info:
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# VS installer instelled but not VS itself maybe?
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raise MesonException(f'Could not parse vswhere.exe output')
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bat_root = pathlib.Path(bat_info[0]['installationPath'])
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bat_path = bat_root / 'VC/Auxiliary/Build/vcvars64.bat'
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if not bat_path.exists():
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raise MesonException(f'Could not find {bat_path}')
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mlog.log('Activating VS', bat_info[0]['catalog']['productDisplayVersion'])
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bat_separator = '---SPLIT---'
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bat_contents = bat_template.format(bat_path, bat_separator)
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bat_file = tempfile.NamedTemporaryFile('w', suffix='.bat', encoding='utf-8')
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bat_file.write(bat_contents)
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bat_file.flush()
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bat_output = subprocess.check_output(str(bat_file), universal_newlines=True)
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bat_lines = bat_output.split('\n')
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bat_separator_seen = False
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for bat_line in bat_lines:
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if bat_line == bat_separator:
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bat_separator_seen = True
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continue
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if not bat_separator_seen:
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continue
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if not bat_line:
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continue
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k, v = bat_line.split('=', 1)
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os.environ[k] = v
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return True
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def setup_vsenv(force: bool = False):
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try:
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_setup_vsenv(force)
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except MesonException:
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if force:
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raise
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mlog.warning('Failed to activate VS environment:', str(e))
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