1 files changed, 51 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/build-support/rust/build-rust-crate/install-crate.nix b/nixpkgs/pkgs/build-support/rust/build-rust-crate/install-crate.nix
new file mode 100644
index 000000000000..7c7c102833d8
--- /dev/null
+++ b/nixpkgs/pkgs/build-support/rust/build-rust-crate/install-crate.nix
@@ -0,0 +1,51 @@
+{ stdenv }:
+crateName: metadata: buildTests:
+if !buildTests then ''
+  runHook preInstall
+  # always create $out even if we do not have binaries. We are detecting binary targets during compilation, if those are missing there is no way to only have $lib
+  mkdir $out
+  if [[ -s target/env ]]; then
+    mkdir -p $lib
+    cp target/env $lib/env
+  fi
+  if [[ -s target/link.final ]]; then
+    mkdir -p $lib/lib
+    cp target/link.final $lib/lib/link
+  fi
+  if [[ "$(ls -A target/lib)" ]]; then
+    mkdir -p $lib/lib
+    cp -r target/lib/* $lib/lib #*/
+    for library in $lib/lib/*.so $lib/lib/*.dylib; do #*/
+      ln -s $library $(echo $library | sed -e "s/-${metadata}//")
+    done
+  fi
+  if [[ "$(ls -A target/build)" ]]; then # */
+    mkdir -p $lib/lib
+    cp -r target/build/* $lib/lib # */
+  fi
+  if [[ -d target/bin ]]; then
+    if [[ "$(ls -A target/bin)" ]]; then
+      mkdir -p $out/bin
+      cp -rP target/bin/* $out/bin # */
+    fi
+  fi
+  runHook postInstall
+'' else
+# for tests we just put them all in the output. No execution.
+''
+  runHook preInstall
+
+  mkdir -p $out/tests
+  if [ -e target/bin ]; then
+    find target/bin/ -type f -executable -exec cp {} $out/tests \;
+  fi
+  if [ -e target/lib ]; then
+    find target/lib/ -type f \! -name '*.rlib' \
+      -a \! -name '*${stdenv.hostPlatform.extensions.library}' \
+      -a \! -name '*.d' \
+      -executable \
+      -print0 | xargs --no-run-if-empty --null install --target $out/tests;
+  fi
+
+  runHook postInstall
+''