Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 78 insertions, 0 deletions

diff --git a/meson/mesonbuild/mdevenv.py b/meson/mesonbuild/mdevenv.py
new file mode 100644
index 000000000..c304cbb52
--- /dev/null
+++ b/meson/mesonbuild/mdevenv.py
@@ -0,0 +1,78 @@
+import os, subprocess
+import argparse
+import tempfile
+
+from pathlib import Path
+from . import build
+from .mesonlib import MesonException, RealPathAction, is_windows
+
+import typing as T
+
+def add_arguments(parser: argparse.ArgumentParser) -> None:
+    parser.add_argument('-C', dest='wd', action=RealPathAction,
+                        help='directory to cd into before running')
+    parser.add_argument('command', nargs=argparse.REMAINDER,
+                        help='Command to run in developer environment (default: interactive shell)')
+
+def get_windows_shell() -> str:
+    mesonbuild = Path(__file__).parent
+    script = mesonbuild / 'scripts' / 'cmd_or_ps.ps1'
+    command = ['powershell.exe', '-noprofile', '-executionpolicy', 'bypass', '-file', str(script)]
+    result = subprocess.check_output(command)
+    return result.decode().strip()
+
+def get_env(b: build.Build, build_dir: str) -> T.Dict[str, str]:
+    env = os.environ.copy()
+    for i in b.devenv:
+        env = i.get_env(env)
+
+    extra_env = build.EnvironmentVariables()
+    extra_env.set('MESON_DEVENV', ['1'])
+    extra_env.set('MESON_PROJECT_NAME', [b.project_name])
+
+    meson_uninstalled = Path(build_dir) / 'meson-uninstalled'
+    if meson_uninstalled.is_dir():
+        extra_env.prepend('PKG_CONFIG_PATH', [str(meson_uninstalled)])
+
+    return extra_env.get_env(env)
+
+def run(options: argparse.Namespace) -> int:
+    buildfile = Path(options.wd) / 'meson-private' / 'build.dat'
+    if not buildfile.is_file():
+        raise MesonException(f'Directory {options.wd!r} does not seem to be a Meson build directory.')
+    b = build.load(options.wd)
+
+    devenv = get_env(b, options.wd)
+
+    args = options.command
+    if not args:
+        prompt_prefix = f'[{b.project_name}]'
+        if is_windows():
+            shell = get_windows_shell()
+            if shell == 'powershell.exe':
+                args = ['powershell.exe']
+                args += ['-NoLogo', '-NoExit']
+                prompt = f'function global:prompt {{  "{prompt_prefix} PS " + $PWD + "> "}}'
+                args += ['-Command', prompt]
+            else:
+                args = [os.environ.get("COMSPEC", r"C:\WINDOWS\system32\cmd.exe")]
+                args += ['/k', f'prompt {prompt_prefix} $P$G']
+        else:
+            args = [os.environ.get("SHELL", os.path.realpath("/bin/sh"))]
+        if "bash" in args[0] and not os.environ.get("MESON_DISABLE_PS1_OVERRIDE"):
+            tmprc = tempfile.NamedTemporaryFile(mode='w')
+            bashrc = os.path.expanduser('~/.bashrc')
+            if os.path.exists(bashrc):
+                tmprc.write(f'. {bashrc}\n')
+            tmprc.write(f'export PS1="{prompt_prefix} $PS1"')
+            tmprc.flush()
+            # Let the GC remove the tmp file
+            args.append("--rcfile")
+            args.append(tmprc.name)
+
+    try:
+        return subprocess.call(args, close_fds=False,
+                               env=devenv,
+                               cwd=options.wd)
+    except subprocess.CalledProcessError as e:
+        return e.returncode