On Fri, Jun 16, 2023 at 02:16:30AM +0200, Miguel Ojeda wrote: > The script already checks for `$RUSTC` and `$BINDGEN` existing > and exiting without failure. However, one may still pass an > unexpected binary that does not output what the later parsing > expects. The script still successfully reports a failure as > expected, but the error is confusing. For instance: > > $ RUSTC=true BINDGEN=bindgen CC=clang scripts/rust_is_available.sh > scripts/rust_is_available.sh: 19: arithmetic expression: expecting primary: "100000 * + 100 * + " > *** > *** Please see Documentation/rust/quick-start.rst for details > *** on how to set up the Rust support. > *** > > Thus add an explicit check and a proper message for unexpected > output from the called command. > > Similarly, do so for the `libclang` version parsing, too. > > Link: https://lore.kernel.org/rust-for-linux/CAK7LNAQYk6s11MASRHW6oxtkqF00EJVqhHOP=5rynWt-QDUsXw@xxxxxxxxxxxxxx/ > Signed-off-by: Miguel Ojeda <ojeda@xxxxxxxxxx> Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx> > --- > scripts/rust_is_available.sh | 28 ++++++++++++++++++++++++++++ > 1 file changed, 28 insertions(+) > > diff --git a/scripts/rust_is_available.sh b/scripts/rust_is_available.sh > index da8296cd9b8d..117018946b57 100755 > --- a/scripts/rust_is_available.sh > +++ b/scripts/rust_is_available.sh > @@ -97,6 +97,15 @@ rust_compiler_version=$( \ > echo "$rust_compiler_output" \ > | sed -nE '1s:.*rustc ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p' > ) > +if [ -z "$rust_compiler_version" ]; then > + echo >&2 "***" > + echo >&2 "*** Running '$RUSTC' to check the Rust compiler version did not return" > + echo >&2 "*** an expected output. See output and docs below for details:" > + echo >&2 "***" > + echo >&2 "$rust_compiler_output" > + echo >&2 "***" > + exit 1 > +fi > rust_compiler_min_version=$($min_tool_version rustc) > rust_compiler_cversion=$(get_canonical_version $rust_compiler_version) > rust_compiler_min_cversion=$(get_canonical_version $rust_compiler_min_version) > @@ -136,6 +145,15 @@ rust_bindings_generator_version=$( \ > echo "$rust_bindings_generator_output" \ > | sed -nE '1s:.*bindgen ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p' > ) > +if [ -z "$rust_bindings_generator_version" ]; then > + echo >&2 "***" > + echo >&2 "*** Running '$BINDGEN' to check the bindings generator version did not return" > + echo >&2 "*** an expected output. See output and docs below for details:" > + echo >&2 "***" > + echo >&2 "$rust_bindings_generator_output" > + echo >&2 "***" > + exit 1 > +fi > rust_bindings_generator_min_version=$($min_tool_version bindgen) > rust_bindings_generator_cversion=$(get_canonical_version $rust_bindings_generator_version) > rust_bindings_generator_min_cversion=$(get_canonical_version $rust_bindings_generator_min_version) > @@ -184,6 +202,16 @@ bindgen_libclang_version=$( \ > echo "$bindgen_libclang_output" \ > | sed -nE 's:.*clang version ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p' > ) > +if [ -z "$bindgen_libclang_version" ]; then > + echo >&2 "***" > + echo >&2 "*** Running '$BINDGEN' to check the libclang version (used by the Rust" > + echo >&2 "*** bindings generator) did not return an expected output. See output" > + echo >&2 "*** and docs below for details:" > + echo >&2 "***" > + echo >&2 "$bindgen_libclang_output" > + echo >&2 "***" > + exit 1 > +fi > bindgen_libclang_min_version=$($min_tool_version llvm) > bindgen_libclang_cversion=$(get_canonical_version $bindgen_libclang_version) > bindgen_libclang_min_cversion=$(get_canonical_version $bindgen_libclang_min_version) > -- > 2.41.0 >
