buildRustCrate: extracted builder scripts into dedicated files

The build expression got quiet large over time and to make it a bit
easier to grasp the different scripts involved in the build are now
separated from the nix file.

1 files changed, 28 insertions, 0 deletions

diff --git a/pkgs/build-support/rust/build-rust-crate/install-crate.nix b/pkgs/build-support/rust/build-rust-crate/install-crate.nix
new file mode 100644
index 00000000000..c41df34ca39
--- /dev/null
+++ b/pkgs/build-support/rust/build-rust-crate/install-crate.nix
@@ -0,0 +1,28 @@
+crateName: metadata:
+''
+  runHook preInstall
+  mkdir -p $out
+  if [[ -s target/env ]]; then
+    cp target/env $out/env
+  fi
+  if [[ -s target/link.final ]]; then
+    mkdir -p $out/lib
+    cp target/link.final $out/lib/link
+  fi
+  if [[ "$(ls -A target/lib)" ]]; then
+    mkdir -p $out/lib
+    cp target/lib/* $out/lib #*/
+    for lib in $out/lib/*.so $out/lib/*.dylib; do #*/
+      ln -s $lib $(echo $lib | sed -e "s/-${metadata}//")
+    done
+  fi
+  if [[ "$(ls -A target/build)" ]]; then # */
+    mkdir -p $out/lib
+    cp -r target/build/* $out/lib # */
+  fi
+  if [[ "$(ls -A target/bin)" ]]; then
+    mkdir -p $out/bin
+    cp -P target/bin/* $out/bin # */
+  fi
+  runHook postInstall
+''