Add tag-driven GitHub release workflow

Author: pasunboneleve

.github/workflows/release.yml

@@ -0,0 +1,94 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: write
+
+jobs:
+  verify-version:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Verify tag matches Cargo.toml version
+        shell: bash
+        run: |
+          set -euo pipefail
+          tag_version="${GITHUB_REF_NAME#v}"
+          cargo_version="$(sed -n 's/^version = "\(.*\)"/\1/p' Cargo.toml | head -n 1)"
+          if [[ "${tag_version}" != "${cargo_version}" ]]; then
+            echo "tag version ${tag_version} does not match Cargo.toml version ${cargo_version}" >&2
+            exit 1
+          fi
+
+  build:
+    needs: verify-version
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            archive_name: devloop-x86_64-unknown-linux-gnu.tar.gz
+          - os: macos-13
+            target: x86_64-apple-darwin
+            archive_name: devloop-x86_64-apple-darwin.tar.gz
+          - os: macos-14
+            target: aarch64-apple-darwin
+            archive_name: devloop-aarch64-apple-darwin.tar.gz
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+
+      - name: Cache cargo artifacts
+        uses: Swatinem/rust-cache@v2
+
+      - name: Build release binary
+        run: cargo build --release --target ${{ matrix.target }}
+
+      - name: Package release archive
+        shell: bash
+        run: |
+          set -euo pipefail
+          mkdir -p dist
+          cp "target/${{ matrix.target }}/release/devloop" dist/devloop
+          tar -C dist -czf "${{ matrix.archive_name }}" devloop
+
+      - name: Upload release asset
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.archive_name }}
+          path: ${{ matrix.archive_name }}
+
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download release assets
+        uses: actions/download-artifact@v4
+        with:
+          path: release-assets
+
+      - name: Flatten release assets
+        shell: bash
+        run: |
+          set -euo pipefail
+          mkdir -p dist
+          find release-assets -type f -name '*.tar.gz' -exec cp {} dist/ \;
+
+      - name: Publish GitHub release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: dist/*.tar.gz
+          generate_release_notes: true

CHANGELOG.md

@@ -17,6 +17,9 @@ All notable changes to `devloop` will be recorded in this file.
 - Added `devloop docs <topic>` so the configuration, behavior, and
   security references can be read directly from the CLI without
   duplicating the source material.
+- Added a tag-driven GitHub release workflow that verifies the Cargo
+  version, builds release archives for Linux and macOS, and publishes
+  them as GitHub Release assets.
 
 ### Changed
 - Moved workflow progression into a pure state/effect core so ordered

README.md

@@ -47,6 +47,9 @@ Install the latest published `main` branch directly from GitHub:
 cargo install --git https://github.com/pasunboneleve/devloop.git
 ```
 
+Tagged releases are also published automatically on GitHub with
+prebuilt release archives for Linux and macOS.
+
 For local development from a checkout:
 
 ```bash