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{ lib, stdenv, echo_build_heading, noisily, mkRustcDepArgs, rust }:
{ crateName,
dependencies,
crateFeatures, crateRenames, libName, release, libPath,
crateType, metadata, crateBin, hasCrateBin,
extraRustcOpts, verbose, colors,
}:
let
baseRustcOpts =
[(if release then "-C opt-level=3" else "-C debuginfo=2")]
++ ["-C codegen-units=$NIX_BUILD_CORES"]
++ [(mkRustcDepArgs dependencies crateRenames)]
++ [crateFeatures]
++ extraRustcOpts
++ lib.optional (stdenv.hostPlatform != stdenv.buildPlatform) "--target ${rust.toRustTarget stdenv.hostPlatform} -C linker=${stdenv.hostPlatform.config}-gcc"
;
rustcMeta = "-C metadata=${metadata} -C extra-filename=-${metadata}";
# build the final rustc arguments that can be different between different
# crates
libRustcOpts = lib.concatStringsSep " " (
baseRustcOpts
++ [rustcMeta]
++ (map (x: "--crate-type ${x}") crateType)
);
binRustcOpts = lib.concatStringsSep " " (
baseRustcOpts
);
in ''
runHook preBuild
${echo_build_heading colors}
${noisily colors verbose}
# configure & source common build functions
LIB_RUSTC_OPTS="${libRustcOpts}"
BIN_RUSTC_OPTS="${binRustcOpts}"
LIB_EXT="${stdenv.hostPlatform.extensions.sharedLibrary}"
LIB_PATH="${libPath}"
LIB_NAME="${libName}"
source ${./lib.sh}
CRATE_NAME='${lib.replaceStrings ["-"] ["_"] libName}'
setup_link_paths
if [[ -e "$LIB_PATH" ]]; then
build_lib $LIB_PATH
elif [[ -e src/lib.rs ]]; then
build_lib src/lib.rs
elif [[ -e "src/$LIB_NAME.rs" ]]; then
build_lib src/$LIB_NAME.rs
fi
${lib.optionalString (lib.length crateBin > 0) (lib.concatMapStringsSep "\n" (bin: ''
mkdir -p target/bin
BIN_NAME='${bin.name or crateName}'
${if !bin ? path then ''
BIN_PATH=""
search_for_bin_path "$BIN_NAME"
'' else ''
BIN_PATH='${bin.path}'
''}
build_bin "$BIN_NAME" "$BIN_PATH"
'') crateBin)}
# If crateBin is empty and hasCrateBin is not set then we must try to
# detect some kind of bin target based on some files that might exist.
${lib.optionalString (lib.length crateBin == 0 && !hasCrateBin) ''
if [[ -e src/main.rs ]]; then
mkdir -p target/bin
build_bin ${crateName} src/main.rs
fi
for i in src/bin/*.rs; do #*/
mkdir -p target/bin
build_bin "$(basename $i .rs)" "$i"
done
''}
# Remove object files to avoid "wrong ELF type"
find target -type f -name "*.o" -print0 | xargs -0 rm -f
runHook postBuild
''
|