The Meson Build System
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80 lines
3.0 KiB
80 lines
3.0 KiB
4 years ago
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import os, subprocess
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import argparse
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import tempfile
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from pathlib import Path
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from . import build
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from .mesonlib import MesonException, is_windows
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import typing as T
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def add_arguments(parser: argparse.ArgumentParser) -> None:
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parser.add_argument('-C', default='.', dest='wd',
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help='directory to cd into before running')
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parser.add_argument('command', nargs=argparse.REMAINDER,
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help='Command to run in developer environment (default: interactive shell)')
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def get_windows_shell() -> str:
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mesonbuild = Path(__file__).parent
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script = mesonbuild / 'scripts' / 'cmd_or_ps.ps1'
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command = ['powershell.exe', '-noprofile', '-executionpolicy', 'bypass', '-file', str(script)]
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result = subprocess.check_output(command)
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return result.decode().strip()
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def get_env(b: build.Build, build_dir: str) -> T.Dict[str, str]:
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env = os.environ.copy()
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for i in b.devenv:
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env = i.get_env(env)
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extra_env = build.EnvironmentVariables()
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extra_env.set('MESON_DEVENV', ['1'])
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extra_env.set('MESON_PROJECT_NAME', [b.project_name])
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meson_uninstalled = Path(build_dir) / 'meson-uninstalled'
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if meson_uninstalled.is_dir():
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extra_env.prepend('PKG_CONFIG_PATH', [str(meson_uninstalled)])
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return extra_env.get_env(env)
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def run(options: argparse.Namespace) -> int:
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options.wd = os.path.abspath(options.wd)
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buildfile = Path(options.wd) / 'meson-private' / 'build.dat'
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if not buildfile.is_file():
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raise MesonException(f'Directory {options.wd!r} does not seem to be a Meson build directory.')
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b = build.load(options.wd)
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devenv = get_env(b, options.wd)
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args = options.command
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if not args:
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prompt_prefix = f'[{b.project_name}]'
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if is_windows():
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shell = get_windows_shell()
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if shell == 'powershell.exe':
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args = ['powershell.exe']
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args += ['-NoLogo', '-NoExit']
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prompt = f'function global:prompt {{ "{prompt_prefix} PS " + $PWD + "> "}}'
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args += ['-Command', prompt]
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else:
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args = [os.environ.get("COMSPEC", r"C:\WINDOWS\system32\cmd.exe")]
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args += ['/k', f'prompt {prompt_prefix} $P$G']
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else:
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args = [os.environ.get("SHELL", os.path.realpath("/bin/sh"))]
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if "bash" in args[0] and not os.environ.get("MESON_DISABLE_PS1_OVERRIDE"):
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tmprc = tempfile.NamedTemporaryFile(mode='w')
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bashrc = os.path.expanduser('~/.bashrc')
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if os.path.exists(bashrc):
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tmprc.write(f'. {bashrc}\n')
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tmprc.write(f'export PS1="{prompt_prefix} $PS1"')
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tmprc.flush()
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# Let the GC remove the tmp file
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args.append("--rcfile")
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args.append(tmprc.name)
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try:
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return subprocess.call(args, close_fds=False,
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env=devenv,
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cwd=options.wd)
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except subprocess.CalledProcessError as e:
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return e.returncode
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