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[3.14] Touch up Setup.local handling in Tools/wasm/wasi (GH-137051) #137053

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[3.14] Touch up Setup.local handling in Tools/wasm/wasi (GH-137051) #137053

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6beaf3c
Touch up `Setup.local` handling in `Tools/wasm/wasi` (GH-137051)
brettcannon Jul 23, 2025
1fcea7d
Merge branch '3.14' into backport-ec7fad7-3.14
zware Jul 24, 2025
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15 changes: 9 additions & 6 deletions Tools/wasm/wasi/__main__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,8 @@
BUILD_DIR = CROSS_BUILD_DIR / "build"

LOCAL_SETUP = CHECKOUT / "Modules" / "Setup.local"
LOCAL_SETUP_MARKER = "# Generated by Tools/wasm/wasi.py\n".encode("utf-8")
LOCAL_SETUP_MARKER = ("# Generated by Tools/wasm/wasi .\n"
"# Required to statically build extension modules.").encode("utf-8")

WASMTIME_VAR_NAME = "WASMTIME"
WASMTIME_HOST_RUNNER_VAR = f"{{{WASMTIME_VAR_NAME}}}"
Expand Down Expand Up @@ -141,9 +142,12 @@ def build_python_is_pydebug():
def configure_build_python(context, working_dir):
"""Configure the build/host Python."""
if LOCAL_SETUP.exists():
print(f"👍 {LOCAL_SETUP} exists ...")
if LOCAL_SETUP.read_bytes() == LOCAL_SETUP_MARKER:
print(f"👍 {LOCAL_SETUP} exists ...")
else:
print(f"⚠️ {LOCAL_SETUP} exists, but has unexpected contents")
else:
print(f"📝 Touching {LOCAL_SETUP} ...")
print(f"📝 Creating {LOCAL_SETUP} ...")
LOCAL_SETUP.write_bytes(LOCAL_SETUP_MARKER)

configure = [os.path.relpath(CHECKOUT / 'configure', working_dir)]
Expand Down Expand Up @@ -297,9 +301,8 @@ def clean_contents(context):
shutil.rmtree(CROSS_BUILD_DIR)

if LOCAL_SETUP.exists():
with LOCAL_SETUP.open("rb") as file:
if file.read(len(LOCAL_SETUP_MARKER)) == LOCAL_SETUP_MARKER:
print(f"🧹 Deleting generated {LOCAL_SETUP} ...")
if LOCAL_SETUP.read_bytes() == LOCAL_SETUP_MARKER:
print(f"🧹 Deleting generated {LOCAL_SETUP} ...")


def main():
Expand Down
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