From 3d417d7e15931ceda6cb8a4e17b2ee2f0cec85c9 Mon Sep 17 00:00:00 2001
From: Soispha <soispha@vhack.eu>
Date: Mon, 24 Jul 2023 17:25:30 +0200
Subject: [PATCH] Build(flake): Remove dead code from cranelift build process

---
 flake.nix | 139 ++----------------------------------------------------
 1 file changed, 3 insertions(+), 136 deletions(-)

diff --git a/flake.nix b/flake.nix
index d35a329..af2db8c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -39,19 +39,6 @@
       url = "https://github.com/bjorn3/rustc_codegen_cranelift/releases/download/dev/cg_clif-x86_64-unknown-linux-gnu.tar.xz";
       flake = false;
     };
-    #    # dependencies
-    #    rust_regex ={
-    #      url = "git+https://github.com/rust-lang/regex.git";
-    #      flake = false;
-    #    };
-    #    rust_portable_simd = {
-    #      url = "git+https://github.com/rust-lang/portable-simd.git";
-    #      flake = false;
-    #    };
-    #    rust_rand = {
-    #      url = "git+https://github.com/rust-random/rand.git";
-    #      flake = false;
-    #    };
   };
 
   outputs = {
@@ -62,129 +49,11 @@
     rust-overlay,
     rustc_cranelift_backend,
     rustc_cranelift_backend_src,
-    #    rust_regex,
-    #    rust_portable_simd,
-    #    rust_rand,
     ...
   }:
     flake-utils.lib.eachDefaultSystem (system: let
-        rcb_deps = let
-          c_rust = pkgs.rust-bin.fromRustupToolchainFile "${rustc_cranelift_backend}/rust-toolchain";
-        in
-          pkgs.stdenv.mkDerivation {
-            pname = "rustc_cranelift_backend_dependencies";
-            version = "1.0";
-            nativeBuildInputs = with pkgs; [git curl cacert c_rust];
-            src = "${rustc_cranelift_backend}";
-            # old implementation {{{
-            #"${rust_regex}" "${rust_portable_simd}" "${rust_rand}"
-            #];
-            #sourceRoot = "source";
-            #            preUnpack = ''
-            #            #set -x;
-            #            unpackCmdHooks=(_defaultUnpack);
-            #            checkForHashToName() {
-            #              case "$1" in
-            #                "regex")
-            #                    echo source/download/regex
-            #                    ;;
-            #                "portable-simd")
-            #                    echo source/download/portable-simd
-            #                    ;;
-            #                "rand")
-            #                    echo source/download/rand
-            #                    ;;
-            #                "rustc_codegen_cranelift")
-            #                    echo source
-            #                    ;;
-            #                *)
-            #                    echo "Warning: Unable to turn hash ($1) to name!" 1>&2
-            #                    echo "Using another method" 1>&2
-            #                    echo null;
-            #                    ;;
-            #                esac
-            #            }
-            #            fail() {
-            #              echo "$@";
-            #              exit 1;
-            #            }
-            #            _defaultUnpack(){
-            #                local fn="$1"
-            #                local destination
-            #                local finalDestination
-            #
-            #                # extrem hacky solution to turn the nix hash path to useful names:
-            #                destination="$(sed -n '2p' "$fn/Cargo.toml" | sed 's|name = "||' | sed 's|"||')"
-            #
-            #                finalDestination="$(checkForHashToName "$destination")"
-            #                 if [ "$finalDestination" = "null" ]; then
-            #                    if grep "Portable SIMD" "$fn"/README.md > /dev/null 2>&1; then
-            #                      destination="portable-simd";
-            #                    else
-            #                      echo "Can not grep readme directly"
-            #                    fi
-            #                 fi
-            #
-            #                finalDestination="$(checkForHashToName "$destination")"
-            #                if [ "$finalDestination" = "null" ]; then
-            #                  fail "No idea how to turn your hash to a name, sorry!";
-            #                fi
-            #
-            #                echo "Final destination is '$finalDestination'"
-            #                destination="$finalDestination"
-            #                echo "Copying '$fn' to '$destination'"
-            #
-            #                mkdir --parents "$destination";
-            #                # We can't preserve hardlinks because they may have been
-            #                # introduced by store optimization, which might break things
-            #                # in the build.
-            #                cp -pr --reflink=auto -- "$fn"/. "$destination"
-            #                chmod -R u+w "$destination"
-            #            }
-            #            '';
-            # }}}
-            buildPhase = ''
-              bash ./y.sh prepare
-            '';
-            installPhase = ''
-              install -d $out/
-              cp -r ./. $out/
-            '';
-            fixupPhase = ''
-              set -x
-            ''; # skip it
-            CARGO = "${c_rust}/bin/cargo";
-            RUSTC = "${c_rust}/bin/rustc";
-            RUSTDOC = "${c_rust}/bin/rustdoc";
-            CARGO_HOME = "/build/cargo";
-
-            outputHashAlgo = "sha512";
-            outputHashMode = "recursive";
-            outputHash = "sha512-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==";
-          };
-        rcb = let
-          c_rust = pkgs.rust-bin.fromRustupToolchainFile "${rustc_cranelift_backend}/rust-toolchain";
-        in
-          pkgs.stdenv.mkDerivation {
-            pname = "rustc_cranelift_backend";
-            version = "1.0";
-            nativeBuildInputs = [c_rust];
-            src = "${rcb_deps}";
-            buildPhase = ''
-              bash ./y.sh build
-            '';
-            installPhase = ''
-              install -d $out/
-              cp -r ./dist/. $out/
-            '';
-            CARGO = "${c_rust}/bin/cargo";
-            RUSTC = "${c_rust}/bin/rustc";
-            RUSTDOC = "${c_rust}/bin/rustdoc";
-            CARGO_HOME = "/build/cargo";
-          };
         c_rust = pkgs.rust-bin.fromRustupToolchainFile "${rustc_cranelift_backend}/rust-toolchain";
-        rcb_better = pkgs.stdenv.mkDerivation {
+        rcb = pkgs.stdenv.mkDerivation {
           pname = "rustc_cranelift_backend";
           version = "1.0";
           buildInputs = [c_rust];
@@ -278,11 +147,11 @@ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==";
         nativeBuildInputs = with pkgs; [
           pkg-config
           mold
-          rcb_better
-          #self.packages."${system}".cranelift-deps
+          rcb
         ];
         buildInputs = with pkgs; [
           openssl
+          lua54Packages.lua
         ];
 
         craneBuild = craneLib.buildPackage {
@@ -294,8 +163,6 @@ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==";
       in {
         packages = {
           default = craneBuild;
-          cranelift = rcb_better;
-          cranelift-deps = c_rust;
         };
 
         app.default = {