chore(ci): Configure binary size CI (#11188)

Author: kdy1

.claude/settings.json

@@ -0,0 +1,9 @@
+{
+  "permissions": {
+    "allow": [
+      "WebFetch",
+      "WebSearch"
+    ],
+    "deny": []
+  }
+}

.github/workflows/binary-size.yml

@@ -0,0 +1,131 @@
+name: Binary Size Check
+
+on:
+  pull_request:
+    types: ["opened", "reopened", "synchronize"]
+  push:
+    branches:
+      - main
+
+env:
+  CI: 1
+  CARGO_INCREMENTAL: 0
+  CARGO_TERM_COLOR: "always"
+  RUST_LOG: "off"
+  SKIP_YARN_COREPACK_CHECK: 1
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  measure-binary-size:
+    name: Measure Binary Size
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+      contents: read
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: "yarn"
+
+      - name: Enable corepack
+        run: corepack enable
+
+      - name: Install wasm-pack
+        run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+
+      - name: Prepare build
+        run: |
+          rustup target add wasm32-wasip1
+          echo '[patch.crates-io]' >> bindings/Cargo.toml
+          ./scripts/cargo/patch-section.sh >> bindings/Cargo.toml
+          cd bindings && cargo update -p swc_core -p swc_ts_fast_strip
+
+      - name: Install dependencies
+        run: yarn
+
+      - name: Build
+        run: yarn build
+
+      - name: Measure binary sizes
+        id: measure
+        run: |
+          echo "## Binary Sizes" > size_report.md
+          echo "" >> size_report.md
+          echo "| File | Size |" >> size_report.md
+          echo "|------|------|" >> size_report.md
+
+          for file in ./packages/core/swc.*.node; do
+            if [ -f "$file" ]; then
+              filename=$(basename "$file")
+              size=$(ls -lh "$file" | awk '{print $5}')
+              size_bytes=$(stat -c%s "$file" 2>/dev/null || stat -f%z "$file")
+              echo "| \`$filename\` | $size ($size_bytes bytes) |" >> size_report.md
+            fi
+          done
+
+          echo "" >> size_report.md
+          echo "*Commit: ${{ github.sha }}*" >> size_report.md
+
+      - name: Find existing comment
+        if: github.event_name == 'pull_request'
+        uses: peter-evans/find-comment@v3
+        id: find-comment
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          comment-author: "github-actions[bot]"
+          body-includes: "## Binary Sizes"
+
+      - name: Create or update PR comment
+        if: github.event_name == 'pull_request'
+        uses: peter-evans/create-or-update-comment@v4
+        with:
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          issue-number: ${{ github.event.pull_request.number }}
+          body-path: size_report.md
+          edit-mode: replace
+
+      - name: Find existing commit comment
+        if: github.event_name == 'push'
+        id: find-commit-comment
+        run: |
+          COMMENTS=$(gh api repos/${{ github.repository }}/commits/${{ github.sha }}/comments \
+            --jq '.[] | select(.body | contains("## Binary Sizes")) | .id' | head -n 1)
+
+          if [ -n "$COMMENTS" ]; then
+            echo "comment_id=$COMMENTS" >> $GITHUB_OUTPUT
+          else
+            echo "comment_id=" >> $GITHUB_OUTPUT
+          fi
+        env:
+          GH_TOKEN: ${{ github.token }}
+
+      - name: Create or update commit comment
+        if: github.event_name == 'push'
+        run: |
+          BODY=$(cat size_report.md)
+
+          if [ -n "${{ steps.find-commit-comment.outputs.comment_id }}" ]; then
+            gh api \
+              --method PATCH \
+              -H "Accept: application/vnd.github+json" \
+              repos/${{ github.repository }}/comments/${{ steps.find-commit-comment.outputs.comment_id }} \
+              -f body="$BODY"
+          else
+            gh api \
+              --method POST \
+              -H "Accept: application/vnd.github+json" \
+              repos/${{ github.repository }}/commits/${{ github.sha }}/comments \
+              -f body="$BODY"
+          fi
+        env:
+          GH_TOKEN: ${{ github.token }}