update readme and add action

.github/workflows/release.yml

@@ -0,0 +1,63 @@
+name: Release crate
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  release:
+    name: Publish to crates.io and create GitHub Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo registry and git index
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Build and test
+        run: cargo test --workspace --verbose
+
+      - name: Install cargo-edit and set crate version
+        id: set_version
+        run: |
+          # install cargo-edit (provides `cargo set-version`)
+          cargo install cargo-edit --locked --force
+          TAG="${{ github.event.release.tag_name }}"
+          # strip a leading 'v' if present
+          VERSION="${TAG#v}"
+          cargo set-version "$VERSION" --workspace
+          # expose the version for later steps
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+      - name: Publish to crates.io
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        run: |
+          if [ -z "$CARGO_REGISTRY_TOKEN" ]; then
+            echo "CARGO_REGISTRY_TOKEN is not set. Set it in repository secrets to publish to crates.io"
+            exit 1
+          fi
+          cargo publish --token "$CARGO_REGISTRY_TOKEN" --allow-dirty
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v1
+        with:
+          tag_name: ${{ github.ref_name }}
+          name: Release ${{ steps.set_version.outputs.version }}
+          body: |
+            This release publishes the crate version `${{ steps.set_version.outputs.version }}` to crates.io:
+
+            https://crates.io/crates/schafkopf-logic/${{ steps.set_version.outputs.version }}
+
+            Git tag: ${{ github.ref_name }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -2,4 +2,5 @@ target
 Cargo.lock
 shell.nix
 dist
-generated_cards
+generated_cards
+main.rs

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "schafkopf-logic"
-version = "0.1.0"
+version = "0.0.0"
 edition = "2024"
 description = "Logic and rules for the Schafkopf card game: deck, suits, ranks and game modes."
 license = "MIT"

README.md

@@ -14,7 +14,7 @@ Logic and rules for the German card game Schafkopf. This crate provides types
 and helpers for deck construction, common game modes and basic trick-taking
 logic.
 
-**Crate:** `schafkopf-logic` • **Version:** 0.1.0
+**Crate:** [`schafkopf-logic`](https://crates.io/crates/schafkopf-logic)
 
 ## Features
 
@@ -36,13 +36,13 @@ fn main() {
     deck.shuffle();
     let hands = deck.deal_4x8().expect("deck should contain 32 cards");
 
-    // form a sample trick from the first card of each hand
+    // Form a sample trick from the first card of each hand and print it
     let trick = [&hands[0][0], &hands[1][0], &hands[2][0], &hands[3][0]];
-    let winner = Gamemode::Sauspiel(Suit::Herz).winning_card(trick);
-    println!("Winning card: {}", winner);
+    println!("Trick: {}, {}, {}, {}", trick[0], trick[1], trick[2], trick[3]);
 
-    // rank points example
-    assert_eq!(Rank::Ass.points(), 11);
+    // Determine the winner for a sample game mode (Sauspiel with Schell)
+    let winner = Gamemode::Sauspiel(Suit::Schell).winning_card(trick);
+    println!("Winning card: {}", winner);
 }
 ```