Merge pull request #108 from thefrontside/tm/preview-packages

Add preview packages workflow

Author: taras

.github/workflows/preview.yaml

@@ -0,0 +1,36 @@
+name: Preview
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  preview:
+    name: Publish Previews
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+
+      - name: Get changed packages
+        id: changed
+        run: deno run -A tasks/preview-matrix.ts
+
+      - name: Build and publish previews
+        if: steps.changed.outputs.workspaces != ''
+        run: |
+          for workspace in ${{ steps.changed.outputs.workspaces }}; do
+            deno run -A tasks/build-npm.ts "$workspace"
+          done
+
+          dirs=""
+          for workspace in ${{ steps.changed.outputs.workspaces }}; do
+            dirs="$dirs ./$workspace/build/npm"
+          done
+          npx pkg-pr-new publish $dirs

AGENTS.md

@@ -0,0 +1,42 @@
+import { main, until } from "effection";
+import { exec } from "../process/mod.ts";
+import { readPackages } from "./lib/read-packages.ts";
+
+await main(function* () {
+  let packages = yield* readPackages();
+
+  // Get the base branch from GitHub Actions environment
+  let baseBranch = Deno.env.get("GITHUB_BASE_REF") || "main";
+
+  // Get list of changed files compared to base branch
+  let { stdout } = yield* exec(
+    `git diff --name-only origin/${baseBranch}...HEAD`,
+  ).join();
+  let changedFiles = stdout.trim().split("\n").filter(Boolean);
+
+  let workspaces: string[] = [];
+
+  for (let pkg of packages) {
+    // Check if any changed file is within this package's workspace
+    let hasChanges = changedFiles.some((file) =>
+      file.startsWith(`${pkg.workspace}/`)
+    );
+
+    if (hasChanges) {
+      workspaces.push(pkg.workspace);
+    }
+  }
+
+  let outputValue = `workspaces=${workspaces.join(" ")}`;
+
+  console.log(outputValue);
+
+  if (Deno.env.has("GITHUB_OUTPUT")) {
+    const githubOutput = Deno.env.get("GITHUB_OUTPUT") as string;
+    yield* until(
+      Deno.writeTextFile(githubOutput, outputValue, {
+        append: true,
+      }),
+    );
+  }
+});