tools/wasm: remove site and runner

.github/workflows/ci.yml

@@ -1,5 +1,10 @@
 on:
-  - push
+  push:
+    branches:
+      - "**"
+
+permissions:
+  contents: read
 
 jobs:
   build:
@@ -9,7 +14,32 @@ jobs:
       - uses: DeterminateSystems/nix-installer-action@main
       - uses: DeterminateSystems/magic-nix-cache-action@main
       - run: nix build . --print-build-logs
+      - run: cp -L result linux.tgz
       - uses: actions/upload-artifact@v4
         with:
           name: kernel
-          path: result
+          path: linux.tgz
+
+  publish:
+    if: github.ref == 'refs/heads/main'
+    needs: build
+    runs-on: ubuntu-24.04
+    permissions:
+      contents: read
+      id-token: write
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: kernel
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          registry-url: https://registry.npmjs.org
+          package-manager-cache: false
+      - run: |
+          version="0.0.0-${GITHUB_SHA::8}"
+          if npm view "@tombl/linux@$version" version >/dev/null 2>&1; then
+            echo "@tombl/linux@$version is already published"
+          else
+            npm publish ./linux.tgz --access public --tag snapshot
+          fi

flake.nix

@@ -18,6 +18,8 @@
             let
               pkgs = nixpkgs.legacyPackages.${system};
               llvm = pkgs.llvmPackages_19;
+              sourceRev = self.rev or self.dirtyRev or "unknown";
+              npmVersion = "0.0.0-${builtins.substring 0 8 sourceRev}";
             in
             {
               default = pkgs.stdenvNoCC.mkDerivation {
@@ -41,6 +43,7 @@
                   wabt
                   esbuild
                   typescript
+                  nodejs
 
                   just
                   miniserve
@@ -52,13 +55,16 @@
                 configurePhase = "make HOSTCC=$HOSTCC -j$NIX_BUILD_CORES defconfig";
                 buildPhase = "
                   # this is a horrible dirty hack but there's some non-deterministic build failure
+                  built=0
                   for i in $(seq 1 3); do
-                    if make HOSTCC=$HOSTCC -j$NIX_BUILD_CORES -C tools/wasm; then
+                    if make HOSTCC=$HOSTCC -j$NIX_BUILD_CORES -C tools/wasm PACKAGE_VERSION=${npmVersion} pack; then
+                      built=1
                       break
                     fi
                   done
+                  test $built -eq 1
                 ";
-                installPhase = ''cp -r tools/wasm/dist $out'';
+                installPhase = "cp tools/wasm/linux.tgz $out";
               };
             }
           );

tools/wasm/.gitignore

@@ -1,3 +1,5 @@
 /.wrangler
 /dist
 /src/build
+/npm-package
+*.tgz

tools/wasm/Makefile

@@ -7,18 +7,36 @@ endif
 
 ESBUILD ?= esbuild
 TSC ?= tsc
+NPM ?= npm
+PACKAGE = linux.tgz
+PACKAGE_DIR = npm-package
+PACKAGE_VERSION ?=
 
-.PHONY: all clean _kernel
+.PHONY: all clean pack _kernel
 all: dist/index.js dist/index.d.ts
 
 clean:
-	$(Q)rm -rf dist
+	$(Q)rm -rf dist $(PACKAGE_DIR) $(PACKAGE)
 
 _kernel:
-	$(Q)$(MAKE) -C ../.. tools/wasm/src/build/vmlinux.wasm tools/wasm/src/build/sections.json tools/wasm/src/build/initramfs_data.cpio
+	$(Q)$(MAKE) -C ../.. tools/wasm/src/build/vmlinux.wasm tools/wasm/src/build/sections.json
+	$(Q)$(MAKE) -C ../.. tools/wasm/src/build/initramfs_data.cpio
 
 dist/index.js: _kernel $(shell find src -type f)
 	$(Q)$(ESBUILD) --bundle src/index.ts --outdir=dist --format=esm --splitting --sourcemap --loader:.wasm=file --loader:.img=file --loader:.cpio=binary
 
-dist/index.d.ts: $(shell find src -type f -name '*.ts')
+dist/index.d.ts: _kernel $(shell find src -type f -name '*.ts')
 	$(Q)$(TSC)
+
+pack: clean $(PACKAGE)
+
+$(PACKAGE): all package.json
+	$(Q)rm -rf $(PACKAGE_DIR) $@
+	$(Q)mkdir -p $(PACKAGE_DIR)
+	$(Q)cp package.json $(PACKAGE_DIR)/
+ifneq ($(PACKAGE_VERSION),)
+	$(Q)cd $(PACKAGE_DIR) && $(NPM) version --no-git-tag-version "$(PACKAGE_VERSION)" >/dev/null
+endif
+	$(Q)cp -r dist $(PACKAGE_DIR)/
+	$(Q)cd $(PACKAGE_DIR) && npm_config_cache="$${TMPDIR:-..}/npm-cache" $(NPM) pack --pack-destination ..
+	$(Q)mv *.tgz $@

tools/wasm/package.json

@@ -1 +1,19 @@
-{ "type": "module" }
+{
+  "name": "@tombl/linux",
+  "version": "0.0.0",
+  "type": "module",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/tombl/linux.git",
+    "directory": "tools/wasm"
+  },
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "default": "./dist/index.js"
+    }
+  },
+  "files": [
+    "dist"
+  ]
+}