Update zig libraries and remove vendored copies from this repo

Dockerfile

@@ -148,7 +148,6 @@ COPY rcloud.packages rcloud.packages
 COPY rcloud.support  rcloud.support
 COPY scripts         scripts
 COPY services        services
-COPY vendor          vendor
 COPY Gruntfile.js    .
 COPY LICENSE         .
 COPY package-lock.json    .
@@ -197,7 +196,7 @@ COPY --from=build --chown=rcloud:rcloud /data/rcloud/zig-out /data/rcloud/
 ENV ROOT=/data/rcloud
 
 # Set R libs directories
-ENV R_LIBS      /data/rcloud/lib
+ENV R_LIBS=/data/rcloud/lib
 
 #
 # runtime-simple: the single-user local RCloud installation

build.zig

@@ -89,7 +89,7 @@ fn fetch_assets_and_build(
         // we are doing a standard online build
 
         // get the fetch-assets tool
-        const exe = b.dependency("r-build-zig", .{
+        const exe = b.dependency("r_build_zig", .{
             .target = target,
             .optimize = optimize,
         }).artifact("fetch-assets");
@@ -132,7 +132,7 @@ fn generate_build_script(
     target: ResolvedTarget,
     optimize: OptimizeMode,
 ) !void {
-    const exe = b.dependency("r-build-zig", .{
+    const exe = b.dependency("r_build_zig", .{
         .target = target,
         .optimize = optimize,
     }).artifact("generate-build");
@@ -217,7 +217,6 @@ fn add_all_source_files(b: *Build, wf: *WriteFile, dirname: []const u8) void {
     _ = add_copy_directory(b, wf, "scripts", dirname, options);
     _ = add_copy_directory(b, wf, "services", dirname, options);
     _ = add_copy_directory(b, wf, "packages", dirname, options);
-    _ = add_copy_directory(b, wf, "vendor", dirname, options);
 
     _ = add_copy_file(b, wf, "build-aux/config.json", dirname);
     _ = add_copy_file(b, wf, "build-aux/generated/build.zig", dirname);

build.zig.zon

@@ -1,10 +1,15 @@
 .{
-    .name = "rcloud",
-    .version = "0.0.0", // TODO: we can ignore this because we don't package for Zig?
+    .name = .rcloud,
+    .fingerprint = 0x356eca021c4a042,
+
+    // track version of r-build-zig, but nothing depends on this version
+    .version = "0.8.0",
+
     .minimum_zig_version = "0.14.0",
     .dependencies = .{
-        .@"r-build-zig" = .{
-            .path = "vendor/r-build-zig-0.5.0-no-deps",
+        .r_build_zig = .{
+            .url = "https://github.com/mocompute/r-build-zig/archive/refs/tags/v0.8.0.tar.gz",
+            .hash = "r_build_zig-0.8.0-5sLw3oAcAQC3PiA1WqhNa8LV0Ebr5WWCLe3t9Fs6A2S2",
         },
     },
     .paths = .{

flake.nix

@@ -4,13 +4,17 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-24.05";
 
+    zig.url = "github:mitchellh/zig-overlay";
+    zig.inputs.nixpkgs.follows = "nixpkgs";
+
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { flake-utils, nixpkgs, ... } @ inputs:
+  outputs = { flake-utils, nixpkgs, zig, ... } @ inputs:
     flake-utils.lib.eachDefaultSystem (system:
       let
         overlays = [
+          zig.overlays.default
         ];
 
         pkgs = import nixpkgs {
@@ -45,6 +49,7 @@
                 rPackages.codetools
                 rPackages.Matrix
                 wget
+                zig.packages.${system}."0.14.0"
               ];
 
               LD_LIBRARY_PATH = with pkgs; lib.makeLibraryPath [ openssl ];