Add example for nodejs toolchain with npm_install repository rule

.gitignore

@@ -1 +1,3 @@
 /**/bazel-*
+
+/**/node_modules

CHANGELOG.md

@@ -6,11 +6,15 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/).
 
 ## [Unreleased]
 
-[Unreleased]: https://github.com/tweag/rules_nixpkgs/compare/v0.8.0...HEAD
+[Unreleased]: https://github.com/tweag/rules_nixpkgs/compare/v0.9.0...HEAD
+
+### Added
+- nixpkgs_nodejs_configure_platforms for platform transparent npm_install
+  See [#309]
 
 ## [0.9.0] - 2022-07-19
 
-[0.9.0]: https://github.com/tweag/rules_nixpkgs/compare/v0.9.0...v0.9.0
+[0.9.0]: https://github.com/tweag/rules_nixpkgs/compare/v0.8.0...v0.9.0
 
 ### Added
 

docs/BUILD.bazel

@@ -21,6 +21,7 @@ generate_documentation(
         "nixpkgs_rust_configure",
         "nixpkgs_sh_posix_configure",
         "nixpkgs_nodejs_configure",
+        "nixpkgs_nodejs_configure_platforms",
     ],
     deps = [
         "@io_tweag_rules_nixpkgs//nixpkgs",

examples/toolchains/nodejs/BUILD

@@ -2,4 +2,5 @@ load("@build_bazel_rules_nodejs//:index.bzl", "nodejs_binary")
 nodejs_binary(
     name = "hello",
     entry_point = ":hello.js",
+    data = [ "@npm//ololog", ]
 )

examples/toolchains/nodejs/WORKSPACE

@@ -6,16 +6,10 @@ local_repository(
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-http_archive(
-    name = "rules_nodejs",
-    sha256 = "5aef09ed3279aa01d5c928e3beb248f9ad32dde6aafe6373a8c994c3ce643064",
-    urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/5.5.3/rules_nodejs-core-5.5.3.tar.gz"],
-)
-
 http_archive(
     name = "build_bazel_rules_nodejs",
-    sha256 = "f10a3a12894fc3c9bf578ee5a5691769f6805c4be84359681a785a0c12e8d2b6",
-    urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/5.5.3/rules_nodejs-5.5.3.tar.gz"],
+    sha256 = "dcc55f810142b6cf46a44d0180a5a7fb923c04a5061e2e8d8eb05ccccc60864b",
+    urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/5.8.0/rules_nodejs-5.8.0.tar.gz"],
 )
 
 load("@build_bazel_rules_nodejs//:repositories.bzl", "build_bazel_rules_nodejs_dependencies")
@@ -34,12 +28,18 @@ nixpkgs_git_repository(
     sha256 = "0f8c25433a6611fa5664797cd049c80faefec91575718794c701f3b033f2db01",
 )
 
-load("@io_tweag_rules_nixpkgs//nixpkgs:nixpkgs.bzl", "nixpkgs_nodejs_configure")
-
-nixpkgs_nodejs_configure(
+load("@io_tweag_rules_nixpkgs//nixpkgs:nixpkgs.bzl", "nixpkgs_nodejs_configure_platforms")
+nixpkgs_nodejs_configure_platforms(
+  name = "nixpkgs-nodejs",
   repository = "@nixpkgs",
 )
 
-load("@build_bazel_rules_nodejs//:index.bzl", "node_repositories", "yarn_install")
+load("@build_bazel_rules_nodejs//:index.bzl", "npm_install")
+npm_install(
+    name = "npm",
+    exports_directories_only = True,
+    node_repository = "nixpkgs-nodejs",
+    package_json = "//:package.json",
+    package_lock_json = "//:package-lock.json",
+)
 
-node_repositories()

examples/toolchains/nodejs/hello.js

@@ -1 +1,4 @@
-console.log("Hello world!")
+const log = require ('ololog')
+
+log("Hello world!")
+

examples/toolchains/nodejs/package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "ololog": "^1.1.175"
+  }
+}

examples/toolchains/nodejs/shell.nix

@@ -1,3 +1,3 @@
 { pkgs ? import ./nixpkgs.nix { } }:
 
-pkgs.mkShellNoCC { nativeBuildInputs = [ pkgs.bazel_6 ]; }
+pkgs.mkShellNoCC { nativeBuildInputs = with pkgs; [ bazel_6 ]; }

nixpkgs/nixpkgs.bzl

@@ -150,6 +150,7 @@ load(
 load(
     "@rules_nixpkgs_nodejs//:nodejs.bzl",
     _nixpkgs_nodejs_configure = "nixpkgs_nodejs_configure",
+    _nixpkgs_nodejs_configure_platforms = "nixpkgs_nodejs_configure_platforms",
 )
 
 # aliases for backwards compatibility prior to `bzlmod`
@@ -162,6 +163,7 @@ nixpkgs_cc_configure = _nixpkgs_cc_configure
 nixpkgs_rust_configure = _nixpkgs_rust_configure
 nixpkgs_sh_posix_configure = _nixpkgs_sh_posix_configure
 nixpkgs_nodejs_configure = _nixpkgs_nodejs_configure
+nixpkgs_nodejs_configure_platforms = _nixpkgs_nodejs_configure_platforms
 
 def nixpkgs_cc_autoconf_impl(repository_ctx):
     cpu_value = get_cpu_value(repository_ctx)

nixpkgs/repositories.bzl

@@ -36,6 +36,12 @@ def rules_nixpkgs_dependencies(rules_nixpkgs_name = "io_tweag_rules_nixpkgs", to
         strip_prefix = "rules_java-5.0.0",
         url = "https://github.com/bazelbuild/rules_java/archive/refs/tags/5.0.0.tar.gz",
     )
+    maybe(
+        http_archive,
+        "rules_nodejs",
+        sha256 = "08337d4fffc78f7fe648a93be12ea2fc4e8eb9795a4e6aa48595b66b34555626",
+        urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/5.8.0/rules_nodejs-core-5.8.0.tar.gz"],
+    )
 
     # the following complication is due to migrating to `bzlmod`.
     # fetch extracted submodules as external repositories from an existing source tree, based on the import type.

toolchains/nodejs/BUILD.bazel

@@ -13,5 +13,6 @@ bzl_library(
     srcs = ["//:nodejs.bzl"],
     deps = [
         "@rules_nixpkgs_core//:nixpkgs",
+        "@rules_nodejs//nodejs:bzl",
     ],
 )