feat: publish dbc to npm

.github/workflows/release.yml

@@ -94,6 +94,30 @@ jobs:
           GORELEASER_KEY: ${{ secrets.GORELEASER_KEY }}
           SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
 
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        with:
+          node-version: '24.x'
+
+      - name: Create and verify npm packages
+        run: |
+          VERSION="${{ fromJSON(steps.gorelease-snapshot.outputs.metadata).version }}"
+          for platform in darwin-amd64 darwin-arm64 linux-amd64 linux-arm64; do
+            node packages/npm/scripts/create_packages.js \
+              --version "$VERSION" \
+              --platform "$platform" \
+              --archive "dist/dbc-${platform}-${VERSION}.tar.gz"
+          done
+          node packages/npm/scripts/create_packages.js \
+            --version "$VERSION" \
+            --platform windows-amd64 \
+            --archive "dist/dbc-windows-amd64-${VERSION}.zip"
+
+          # Verify we can install
+          cd packages/npm/wrapper
+          npm install ../packages/dbc-linux-x64
+          npm install
+          node bin/dbc.js --version
+
       - name: Upload Snapshot Artifacts
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
@@ -107,6 +131,8 @@ jobs:
             dist/*.rpm
             dist/msi/**/*.msi
             dist/python/*
+            packages/npm/packages/*/
+            packages/npm/wrapper/
 
   production_deploy:
     runs-on: ubuntu-latest
@@ -249,3 +275,47 @@ jobs:
             --value="${RELEASE_VERSION}"
         env:
           RELEASE_VERSION: ${{ fromJSON(steps.gorelease.outputs.metadata).version }}
+
+  publish_npm:
+    runs-on: ubuntu-latest
+    environment: production
+    needs: production_deploy
+    if: github.event_name == 'push'
+    permissions:
+      contents: read
+      id-token: write # For npm provenance
+    steps:
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        with:
+          persist-credentials: false
+
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        with:
+          node-version: '24.x'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Publish to npm
+        run: |
+          VERSION="${{ github.ref_name }}"
+          VERSION="${VERSION#v}" # strip leading 'v'
+
+          # Create packages for all platforms from the release we just published
+          node packages/npm/scripts/create_packages.js --version "$VERSION"
+
+          # Handle pre-releases: Prereleases (e.g. 0.3.0-rc1) publish under
+          # 'next' so they don't become the default for 'npm install
+          # @columnar-tech/dbc'
+          if echo "$VERSION" | grep -q '-'; then
+            NPM_TAG="next"
+          else
+            NPM_TAG="latest"
+          fi
+
+          # Make sure to upload the platform-specific packages before the
+          # wrapper since they're deps
+          for pkg in packages/npm/packages/*/; do
+            npm publish "$pkg" --provenance --access public --tag "$NPM_TAG"
+          done
+          npm publish packages/npm/wrapper --provenance --access public --tag "$NPM_TAG"
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

packages/npm/.gitignore

@@ -0,0 +1,9 @@
+node_modules/
+
+# Files generated by scripts/create_packages.js — not committed
+packages/*/bin/dbc*
+packages/*/package.json
+packages/*/README.md
+packages/*/LICENSE
+wrapper/package.json
+wrapper/LICENSE

packages/npm/packages/README.template.md

@@ -0,0 +1,27 @@
+<!--
+Copyright 2026 Columnar Technologies Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+# @columnar-tech/dbc-PLATFORM_SUFFIX
+
+This package contains the `PLATFORM_SUFFIX` binary for [`@columnar-tech/dbc`](https://www.npmjs.com/package/@columnar-tech/dbc).
+
+**Do not install this package directly.** Install the wrapper instead:
+
+```sh
+npm install -g @columnar-tech/dbc
+```
+
+This package is automatically selected by npm based on your operating system and CPU architecture.

packages/npm/platforms.js

@@ -0,0 +1,62 @@
+// Copyright 2026 Columnar Technologies Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+"use strict";
+
+// Add a new entry here to support a new platform across both the
+// build script (create_packages.js) and the wrapper shim (bin/dbc.js).
+const PLATFORMS = [
+  {
+    goosArch: "darwin-arm64",
+    npmPkg: "@columnar-tech/dbc-darwin-arm64",
+    description: "macOS arm64 binary for dbc, the CLI for installing ADBC drivers",
+    binary: "dbc",
+    os: "darwin",
+    cpu: "arm64",
+  },
+  {
+    goosArch: "darwin-amd64",
+    npmPkg: "@columnar-tech/dbc-darwin-x64",
+    description: "macOS x64 binary for dbc, the CLI for installing ADBC drivers",
+    binary: "dbc",
+    os: "darwin",
+    cpu: "x64",
+  },
+  {
+    goosArch: "linux-arm64",
+    npmPkg: "@columnar-tech/dbc-linux-arm64",
+    description: "Linux arm64 binary for dbc, the CLI for installing ADBC drivers",
+    binary: "dbc",
+    os: "linux",
+    cpu: "arm64",
+  },
+  {
+    goosArch: "linux-amd64",
+    npmPkg: "@columnar-tech/dbc-linux-x64",
+    description: "Linux x64 binary for dbc, the CLI for installing ADBC drivers",
+    binary: "dbc",
+    os: "linux",
+    cpu: "x64",
+  },
+  {
+    goosArch: "windows-amd64",
+    npmPkg: "@columnar-tech/dbc-win32-x64",
+    description: "Windows x64 binary for dbc, the CLI for installing ADBC drivers",
+    binary: "dbc.exe",
+    os: "win32",
+    cpu: "x64",
+  },
+];
+
+module.exports = { PLATFORMS };