Skip to content

Improve error messages when the WASI SDK can't be found #149508

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
zware merged 4 commits into from
May 7, 2026
+12 −5
Merged

Improve error messages when the WASI SDK can't be found #149508

Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
4240f4b
Improve error messages when the WASI SDK can't be found
brettcannon May 7, 2026
e5b361b
Fix formatting
brettcannon May 7, 2026
3c09655
Merge branch 'main' into better-missing-wasi-sdk-messaging
zware May 7, 2026
2236a32
Merge branch 'main' into better-missing-wasi-sdk-messaging
zware May 7, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 12 additions & 5 deletions Platforms/WASI/_build.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -222,10 +222,8 @@ def wasi_sdk(context):
if wasi_sdk_path := context.wasi_sdk_path:
if not wasi_sdk_path.exists():
raise ValueError(
"WASI SDK not found; "
"download from "
"https://github.com/WebAssembly/wasi-sdk and/or "
"specify via $WASI_SDK_PATH or --wasi-sdk"
"WASI SDK not found at "
f"{os.fsdecode(wasi_sdk_path)!r} (via --wasi-sdk)"
)
return wasi_sdk_path

Expand All @@ -237,7 +235,8 @@ def wasi_sdk(context):
wasi_sdk_path = pathlib.Path(wasi_sdk_path_env_var)
if not wasi_sdk_path.exists():
raise ValueError(
f"WASI SDK not found at $WASI_SDK_PATH ({wasi_sdk_path})"
f"WASI SDK not found at {os.fsdecode(wasi_sdk_path)!r} "
"(via $WASI_SDK_PATH)"
)
else:
opt_path = pathlib.Path("/opt")
Expand Down Expand Up @@ -272,6 +271,14 @@ def wasi_sdk(context):
f" Found WASI SDK {major_version}, "
f"but WASI SDK {wasi_sdk_version} is the supported version",
)
elif not wasi_sdk_path:
raise ValueError(
f"WASI SDK {wasi_sdk_version} not found; "
"download from "
"https://github.com/WebAssembly/wasi-sdk and install in "
f"{os.fsdecode(opt_path)!r} or specify the SDK via "
"$WASI_SDK_PATH or --wasi-sdk"
)

# Cache the result.
context.wasi_sdk_path = wasi_sdk_path
Expand Down
Loading