CI: Merge release into build.

.github/workflows/build.yaml

@@ -2,9 +2,43 @@ name: "Build"
 
 on:
   push:
+    branches:
+      - '**'
   pull_request:
+  release:
+    types:
+      - published
 
 jobs:
+  source:
+    name: Source
+    runs-on: ubuntu-20.04
+    if: github.event_name == 'release'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 1
+          submodules: true
+      - name: Gen Source
+        run: |
+          REV_ID=$(git tag --points-at HEAD)
+          if [ -z "${REV_ID}" ]; then
+            REV_ID=$(git rev-parse --short HEAD)
+          fi
+          mkdir -p natmap-${{ github.ref_name }}
+          git ls-files --recurse-submodules | tar c -O -T- | tar x -C natmap-${{ github.ref_name }}
+          echo ${REV_ID} > natmap-${{ github.ref_name }}/.version
+          tar caf natmap-${{ github.ref_name }}.tar.gz natmap-${{ github.ref_name }}
+      - name: Upload source
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: natmap-${{ github.ref_name }}.tar.gz
+          asset_name: natmap-${{ github.ref_name }}.tar.gz
+          asset_content_type: application/octet-stream
   linux:
     name: Linux
     runs-on: ubuntu-20.04
@@ -49,9 +83,20 @@ jobs:
           wget https://github.com/musl-cross/musl-cross/releases/download/20240317/${{ matrix.tool }}.tgz
           sudo tar xf ${{ matrix.tool }}.tgz -C /opt/x-tools
           make CROSS_PREFIX=/opt/x-tools/${{ matrix.tool }}/bin/${{ matrix.tool }}- CFLAGS=${{ matrix.env.CFLAGS }} ENABLE_STATIC=1 -j`nproc`
+      - name: Upload ${{ matrix.name }}
+        if: github.event_name == 'release'
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: bin/natmap
+          asset_name: natmap-linux-${{ matrix.name }}
+          asset_content_type: application/octet-stream
   macos:
     name: macOS
     runs-on: macos-14
+    if: github.event_name != 'release'
     steps:
       - name: Checkout
         uses: actions/checkout@v4