On Fri, Jun 16, 2023 at 02:16:28AM +0200, Miguel Ojeda wrote: > In order to match the version string, `sed` is used in a couple > cases, and `grep` and `head` in a couple others. > > Make the script more consistent and easier to understand by > using the same method, `sed`, for all of them. > > This makes the version matching also a bit more strict for > the changed cases, since the strings `rustc ` and `bindgen ` > will now be required, which should be fine since `rustc` > complains if one attempts to call it with another program > name, and `bindgen` uses a hardcoded string. > > In addition, clarify why one of the existing `sed` commands > does not provide an address like the others. > > Signed-off-by: Miguel Ojeda <ojeda@xxxxxxxxxx> Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx> > --- > scripts/rust_is_available.sh | 9 +++++---- > 1 file changed, 5 insertions(+), 4 deletions(-) > > diff --git a/scripts/rust_is_available.sh b/scripts/rust_is_available.sh > index 810691af66eb..b7e0781fdea9 100755 > --- a/scripts/rust_is_available.sh > +++ b/scripts/rust_is_available.sh > @@ -83,8 +83,7 @@ fi > # Non-stable and distributions' versions may have a version suffix, e.g. `-dev`. > rust_compiler_version=$( \ > LC_ALL=C "$RUSTC" --version 2>/dev/null \ > - | head -n 1 \ > - | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' \ > + | sed -nE '1s:.*rustc ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p' > ) > rust_compiler_min_version=$($min_tool_version rustc) > rust_compiler_cversion=$(get_canonical_version $rust_compiler_version) > @@ -111,8 +110,7 @@ fi > # Non-stable and distributions' versions may have a version suffix, e.g. `-dev`. > rust_bindings_generator_version=$( \ > LC_ALL=C "$BINDGEN" --version 2>/dev/null \ > - | head -n 1 \ > - | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' \ > + | sed -nE '1s:.*bindgen ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p' > ) > rust_bindings_generator_min_version=$($min_tool_version bindgen) > rust_bindings_generator_cversion=$(get_canonical_version $rust_bindings_generator_version) > @@ -155,6 +153,9 @@ fi > > # `bindgen` returned successfully, thus use the output to check that the version > # of the `libclang` found by the Rust bindings generator is suitable. > +# > +# Unlike other version checks, note that this one does not necessarily appear > +# in the first line of the output, thus no `sed` address is provided. > bindgen_libclang_version=$( \ > echo "$bindgen_libclang_output" \ > | sed -nE 's:.*clang version ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p' > -- > 2.41.0 >
