book: enable Swift Package tests

* Downgrade `swift-tools-version` to 5.5

Signed-off-by: Yuki Kishimoto <[email protected]>

.github/workflows/book.yml

@@ -24,14 +24,19 @@ concurrency:
 jobs:
   check-book:
     name: Check book
-    runs-on: ubuntu-latest
+    runs-on: macos-latest # Use macOS to check also Swift snippets
     steps:
     - name: Checkout
       uses: actions/checkout@v3
 
     - name: Install just
       run: cargo install just
 
+    - name: Setup Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: "3.12"
+
     # Required for kotlin snippets
     - name: Set up Java 17
       uses: actions/setup-java@v2
@@ -67,4 +72,4 @@ jobs:
 
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v3
+        uses: actions/deploy-pages@v3

book/snippets/justfile

@@ -1,4 +1,4 @@
-test: rust python js kotlin
+test: rust python js kotlin swift
 
 rust:
 	cd rust && cargo build
@@ -11,3 +11,6 @@ js:
 
 kotlin:
 	cd kotlin && just test
+
+swift:
+	cd swift && just test

book/snippets/swift/NostrSnippets/Package.swift

@@ -1,13 +1,13 @@
-// swift-tools-version: 5.9
+// swift-tools-version: 5.5
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
 
 let package = Package(
     name: "NostrSnippets",
-    platforms: [.macOS(.v13)],
+    platforms: [.macOS(.v12)],
     dependencies: [
-        .package(url: "https://github.com/rust-nostr/nostr-sdk-swift", from:"0.36.0")
+        .package(url: "https://github.com/rust-nostr/nostr-sdk-swift", from: "0.36.0")
     ],
     targets: [
         .executableTarget(

book/snippets/swift/NostrSnippets/Sources/Keys.swift

@@ -2,5 +2,12 @@ import NostrSDK
 import Foundation
 
 func keys() {
-    // TODO
+    // ANCHOR: generate
+    let keys = Keys.generate()
+    print("Public key (hex): \(keys.publicKey.toHex())")
+    print("Secret key (hex): \(keys.secretKey.toHex())")
+
+    print("Public key (bech32): \(keys.publicKey.toBech32())")
+    print("Secret key (bech32): \(keys.secretKey.toBech32())")
+    // ANCHOR_END: generate
 }

book/snippets/swift/justfile

@@ -0,0 +1,13 @@
+#!/usr/bin/env just --justfile
+
+[macos]
+test:
+    cd NostrSnippets && swift build && swift run
+
+[linux]
+test:
+    @echo "This command is not supported on Linux platforms (require macOS)."
+
+[windows]
+test:
+    @echo "This command is not supported on Windows platforms (require macOS)."

book/src/sdk/signers/keys.md

@@ -46,7 +46,7 @@ To generate a new key pair use the `generate()` method:
 <section>
 
 ```swift,ignore
-{{#include ../../../snippets/swift/NostrSnippets/Sources/Keys.swift}}
+{{#include ../../../snippets/swift/NostrSnippets/Sources/Keys.swift:generate}}
 ```
 
 </section>