Publish as a Cargo package with explicit binary and library targets (#19

)

Following @Holzhaus's great feedback in #16 and initial implementation in #17, this configures the project so that it can be published as a Cargo package on [Crates.io](https://crates.io/).

The Cargo package exposes a binary target, which can be easily installed with `cargo install litra`, plus a library target which can be used to integrate Litra control into other Rust applications.

The package will be automatically published to Crates.io when a release is created.

.github/workflows/build_and_release.yml

@@ -55,7 +55,31 @@ jobs:
         with:
           path: litra_${{ steps.sanitise_ref.outputs.value }}_${{ matrix.job.binary_name }}
           name: litra_${{ steps.sanitise_ref.outputs.value }}_${{ matrix.job.binary_name }}
-  release:
+  cargo_publish_dry_run:
+    name: Publish with Cargo in dry-run mode
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install libudev-dev
+        run: sudo apt-get update && sudo apt-get install libudev-dev
+      - name: Cache Rust dependencies
+        uses: actions/[email protected]
+        with:
+          path: target
+          key: ${{ runner.OS }}-build-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.OS }}-build-
+      - name: Install latest Rust nightly
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          components: rustc, cargo
+          toolchain: nightly
+          override: true
+      - name: Publish to Crates.io
+        run: cargo publish --dry-run
+  create_github_release:
     name: Create release with binary assets
     runs-on: ubuntu-latest
     needs: build
@@ -83,7 +107,7 @@ jobs:
   publish_on_homebrew:
     name: Publish release on Homebrew
     runs-on: ubuntu-latest
-    needs: release
+    needs: create_github_release
     if: startsWith(github.event.ref, 'refs/tags/v')
     steps:
       - name: Get released version
@@ -97,4 +121,31 @@ jobs:
           push-to: timrogers/homebrew-tap
           create-pullrequest: true
         env:
-          COMMITTER_TOKEN: ${{ secrets.COMMITTER_TOKEN }}
+          COMMITTER_TOKEN: ${{ secrets.COMMITTER_TOKEN }}
+  cargo_publish:
+    name: Publish with Cargo to Crates.io
+    runs-on: ubuntu-latest
+    needs:
+      - create_github_release
+      - cargo_publish_dry_run
+    if: startsWith(github.event.ref, 'refs/tags/v')
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install libudev-dev
+        run: sudo apt-get update && sudo apt-get install libudev-dev
+      - name: Cache Rust dependencies
+        uses: actions/[email protected]
+        with:
+          path: target
+          key: ${{ runner.OS }}-build-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.OS }}-build-
+      - name: Install latest Rust nightly
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          components: rustc, cargo
+          toolchain: nightly
+          override: true
+      - name: Publish to Crates.io
+        run: cargo publish --token ${{ secrets.CRATES_IO_TOKEN }}

Cargo.toml

@@ -2,6 +2,13 @@
 name = "litra"
 version = "0.2.1"
 edition = "2021"
+authors = ["Tim Rogers <[email protected]>"]
+description = "Control your Logitech Litra light from the command line"
+repository = "https://github.com/timrogers/litra-rs"
+license = "MIT"
+readme = "README.md"
+categories = ["hardware-support", "command-line-utilities"]
+keywords = ["logitech", "litra", "glow", "beam", "light"]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html