.github: create release automatically on pushing tag

.github/workflows/release.yaml

@@ -0,0 +1,101 @@
+name: Release
+
+on:
+    push:
+        tags:
+            - "v*"
+    workflow_dispatch:
+
+jobs:
+    prepare:
+        name: Prepare release
+        runs-on: ubuntu-latest
+        permissions:
+          contents: read
+        outputs:
+            tag_name: ${{ steps.release_info.outputs.tag_name }}
+            release_name: ${{ steps.release_info.outputs.release_name }}
+        steps:
+            - uses: actions/checkout@v4
+              with:
+                  fetch-depth: 0
+
+            - name: Compute release name and tag
+              id: release_info
+              run: |
+                  echo "tag_name=${GITHUB_REF_NAME}" >> $GITHUB_OUTPUT
+                  echo "release_name=${GITHUB_REF_NAME}" >> $GITHUB_OUTPUT
+
+    release:
+        name: ${{ matrix.target }} (${{ matrix.runner }})
+        runs-on: ${{ matrix.runner }}
+        needs: prepare
+        permissions:
+          contents: write
+        strategy:
+            fail-fast: false
+            matrix:
+                include:
+                    # `runner`: GHA runner label
+                    # `target`: Rust build target triple
+                    # `platform` and `arch`: Used in tarball names
+                    - runner: ubuntu-latest
+                      target: x86_64-unknown-linux-gnu
+                      platform: linux
+                      arch: amd64
+                    - runner: ubuntu-latest
+                      target: aarch64-unknown-linux-gnu
+                      platform: linux
+                      arch: arm64
+        steps:
+            - uses: actions/checkout@v4
+            - uses: dtolnay/rust-toolchain@stable
+              with:
+                  targets: ${{ matrix.target }}
+
+            - name: Linux ARM setup
+              if: matrix.target == 'aarch64-unknown-linux-gnu'
+              run: |
+                  sudo rm -f /etc/apt/sources.list.d/*
+                  sudo mv /etc/apt/sources.list /etc/apt/sources.list.d/amd64.list
+                  echo "deb [arch=amd64] http://archive.ubuntu.com/ubuntu noble main" | sudo tee -a /etc/apt/sources.list.d/amd64.list
+                  echo "deb [arch=amd64] http://archive.ubuntu.com/ubuntu noble-updates main" | sudo tee -a /etc/apt/sources.list.d/amd64.list
+                  echo "deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports noble main" | sudo tee -a /etc/apt/sources.list.d/arm64-ports.list
+                  echo "deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports noble-updates main" | sudo tee -a /etc/apt/sources.list.d/arm64.list
+                  sudo dpkg --add-architecture arm64
+                  sudo apt update
+                  sudo apt install -y crossbuild-essential-arm64 libssl-dev:arm64 libssl3t64:arm64
+                  echo "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc" >> $GITHUB_ENV
+                  echo "PKG_CONFIG_SYSROOT_DIR=/usr/lib/aarch64-linux-gnu" >> $GITHUB_ENV
+
+            - name: Build binaries
+              shell: bash
+              run: |
+                set -eo pipefail
+                target="${{ matrix.target }}"
+
+                cargo build --release --bins --target "$target" --workspace
+
+            - name: Archive binaries
+              id: artifacts
+              env:
+                  PLATFORM_NAME: ${{ matrix.platform }}
+                  TARGET: ${{ matrix.target }}
+                  ARCH: ${{ matrix.arch }}
+                  VERSION_NAME: ${{ needs.prepare.outputs.tag_name }}
+              shell: bash
+              run: |
+                  if [ "$PLATFORM_NAME" == "linux" ]; then
+                    tar -czvf "ue-rs_${VERSION_NAME}_${PLATFORM_NAME}_${ARCH}.tar.gz" -C ./target/${TARGET}/release download_sysext
+                    echo "file_name=ue-rs_${VERSION_NAME}_${PLATFORM_NAME}_${ARCH}.tar.gz" >> $GITHUB_OUTPUT
+                  fi
+
+            # Creates the release for this specific version
+            - name: Create release
+              uses: softprops/action-gh-release@v2
+              with:
+                  name: ${{ needs.prepare.outputs.release_name }}
+                  tag_name: ${{ needs.prepare.outputs.tag_name }}
+                  body:
+                  files: |
+                      ${{ steps.artifacts.outputs.file_name }}