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|
{ lib, stdenv
, mkRustcDepArgs, mkRustcFeatureArgs, needUnstableCLI
}:
{ crateName,
dependencies,
crateFeatures, crateRenames, libName, release, libPath,
crateType, metadata, crateBin, hasCrateBin,
extraRustcOpts, verbose, colors,
buildTests,
codegenUnits
}:
let
baseRustcOpts =
[
(if release then "-C opt-level=3" else "-C debuginfo=2")
"-C codegen-units=${toString codegenUnits}"
"--remap-path-prefix=$NIX_BUILD_TOP=/"
(mkRustcDepArgs dependencies crateRenames)
(mkRustcFeatureArgs crateFeatures)
] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
"--target" stdenv.hostPlatform.rust.rustcTargetSpec
] ++ lib.optionals (needUnstableCLI dependencies) [
"-Z" "unstable-options"
] ++ extraRustcOpts
# since rustc 1.42 the "proc_macro" crate is part of the default crate prelude
# https://github.com/rust-lang/cargo/commit/4d64eb99a4#diff-7f98585dbf9d30aa100c8318e2c77e79R1021-R1022
++ lib.optional (lib.elem "proc-macro" crateType) "--extern proc_macro"
;
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 ${x}") crateType)
);
binRustcOpts = lib.concatStringsSep " " (
[ "-C linker=${stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc" ] ++
baseRustcOpts
);
build_bin = if buildTests then "build_bin_test" else "build_bin";
in ''
runHook preBuild
# configure & source common build functions
LIB_RUSTC_OPTS="${libRustcOpts}"
BIN_RUSTC_OPTS="${binRustcOpts}"
LIB_EXT="${stdenv.hostPlatform.extensions.sharedLibrary or ""}"
LIB_PATH="${libPath}"
LIB_NAME="${libName}"
CRATE_NAME='${lib.replaceStrings ["-"] ["_"] libName}'
setup_link_paths
if [[ -e "$LIB_PATH" ]]; then
build_lib "$LIB_PATH"
${lib.optionalString buildTests ''build_lib_test "$LIB_PATH"''}
elif [[ -e src/lib.rs ]]; then
build_lib src/lib.rs
${lib.optionalString buildTests "build_lib_test src/lib.rs"}
fi
${lib.optionalString (lib.length crateBin > 0) (lib.concatMapStringsSep "\n" (bin:
let
haveRequiredFeature = if bin ? requiredFeatures then
# Check that all element in requiredFeatures are also present in crateFeatures
lib.intersectLists bin.requiredFeatures crateFeatures == bin.requiredFeatures
else
true;
in
if haveRequiredFeature then ''
mkdir -p target/bin
BIN_NAME='${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"
'' else ''
echo Binary ${bin.name or crateName} not compiled due to not having all of the required features -- ${lib.escapeShellArg (builtins.toJSON bin.requiredFeatures)} -- enabled.
'') crateBin)}
${lib.optionalString buildTests ''
# When tests are enabled build all the files in the `tests` directory as
# test binaries.
if [ -d tests ]; then
# find all the .rs files (or symlinks to those) in the tests directory, no subdirectories
find tests -maxdepth 1 \( -type f -o -type l \) -a -name '*.rs' -print0 | while IFS= read -r -d ''' file; do
mkdir -p target/bin
build_bin_test_file "$file"
done
# find all the subdirectories of tests/ that contain a main.rs file as
# that is also a test according to cargo
find tests/ -mindepth 1 -maxdepth 2 \( -type f -o -type l \) -a -name 'main.rs' -print0 | while IFS= read -r -d ''' file; do
mkdir -p target/bin
build_bin_test_file "$file"
done
fi
''}
# 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
''
|