nix: add query-engine-bin, test-cli derivations (prisma#3634)

These have overridable cargo profiles are specific to one binary, making
them a lot faster to compile than the full prisma-engines derivation.

This is useful for things like check scripts (wip).

nix/all-engines.nix

@@ -1,6 +1,7 @@
-{ pkgs, flakeInputs, lib, ... }:
+{ pkgs, flakeInputs, lib, self', ... }:
 
 let
+  stdenv = pkgs.clangStdenv;
   srcPath = ../.;
   srcFilter = flakeInputs.gitignore.lib.gitignoreFilterWith {
     basePath = srcPath;
@@ -16,11 +17,11 @@ let
   };
   craneLib = flakeInputs.crane.mkLib pkgs;
   deps = craneLib.vendorCargoDeps { inherit src; };
-  libSuffix = if pkgs.stdenv.isDarwin then "dylib" else "so";
+  libSuffix = if stdenv.isDarwin then "dylib" else "so";
 in
 {
   packages.prisma-engines-deps = deps;
-  packages.prisma-engines = pkgs.stdenv.mkDerivation {
+  packages.prisma-engines = stdenv.mkDerivation {
     name = "prisma-engines";
     inherit src;
 
@@ -52,4 +53,46 @@ in
       cp target/release/libquery_engine.${libSuffix} $out/lib/libquery_engine.node
     '';
   };
+
+  packages.test-cli = lib.makeOverridable
+    ({ profile }: stdenv.mkDerivation {
+      name = "test-cli";
+      inherit src;
+      inherit (self'.packages.prisma-engines) buildInputs nativeBuildInputs;
+
+      buildPhase = ''
+        mkdir .cargo
+        ln -s ${deps}/config.toml .cargo/config.toml
+        cargo build --profile=${profile} --bin=test-cli
+      '';
+
+      installPhase = ''
+        set -eu
+        mkdir -p $out/bin
+        QE_PATH=$(find target -name 'test-cli')
+        cp $QE_PATH $out/bin
+      '';
+    })
+    { profile = "release"; };
+
+  packages.query-engine-bin = lib.makeOverridable
+    ({ profile }: stdenv.mkDerivation {
+      name = "query-engine-bin";
+      inherit src;
+      inherit (self'.packages.prisma-engines) buildInputs nativeBuildInputs;
+
+      buildPhase = ''
+        mkdir .cargo
+        ln -s ${deps}/config.toml .cargo/config.toml
+        cargo build --profile=${profile} --bin=query-engine
+      '';
+
+      installPhase = ''
+        set -eu
+        mkdir -p $out/bin
+        QE_PATH=$(find target -name 'query-engine')
+        cp $QE_PATH $out/bin
+      '';
+    })
+    { profile = "release"; };
 }