Adding Cocoapods deployment

Author: csjones

.github/workflows/xcframework-release.yml

@@ -105,4 +105,26 @@ jobs:
           7z a -tzip -mx=9 P256K.xcframework.zip P256K.xcframework LICENSE "COPYING-libsecp256k1"
       - name: Upload XCFramework
         run: |
-          gh release upload ${{ github.ref_name }} P256K.xcframework.zip
+          gh release upload ${{ github.ref_name }} P256K.xcframework.zip
+      - name: Deploy to Cocoapods
+        run: |
+          # Install Cocoapods
+          gem install cocoapods
+
+          # Get the current release tag name (version) from GitHub
+          # This ensures the podspec uses the same version as the GitHub release
+          export POD_VERSION=$(gh release list -R 21-DOT-DEV/swift-secp256k1 -L 1 --json tagName --jq '.[0].tagName')
+          
+          # Calculate SHA256 checksum of the XCFramework zip file
+          # CocoaPods requires this hash for security verification when downloading the binary
+          export XCFRAMEWORK_SHA=$(shasum -a 256 P256K.xcframework.zip | awk '{print $1}')
+          
+          # Validate the podspec using the environment variables set above
+          # This checks that the podspec is valid before attempting to publish
+          pod spec lint Projects/swift-secp256k1.podspec
+          
+          # Push the podspec to the CocoaPods Trunk service
+          # This publishes the new version of the pod to the CocoaPods registry
+          pod trunk push Projects/swift-secp256k1.podspec
+        env:
+          COCOAPODS_TRUNK_TOKEN: ${{ secrets.COCOAPODS_TRUNK_TOKEN }}

Projects/swift-secp256k1.podspec

@@ -3,7 +3,7 @@ Pod::Spec.new do |s|
     # ―――  Spec Metadata  ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――― #
 
     s.name                  = "swift-secp256k1"
-    s.version               = "0.20.0-prerelease-1"
+    s.version               = ENV["POD_VERSION"] || "0.20.0-prerelease-2" #fallback to first version
     s.summary               = "P256K: Elliptic curve public key cryptography, ECDH, and Schnorr Signatures for Bitcoin."
     s.description           = "Open-source library for a substantial portion of the APIs of libsecp256k1. Written in Swift for native iOS, macOS, tvOS, watchOS, and visionOS."
     s.homepage              = "https://github.com/21-DOT-DEV/swift-secp256k1"
@@ -29,7 +29,7 @@ Pod::Spec.new do |s|
 
     s.source = {
         :http => "https://github.com/21-DOT-DEV/swift-secp256k1/releases/download/#{s.version}/P256K.xcframework.zip",
-        :sha256 => "3ba806e07fadd0c4201135d7219be7128652f2f7612fb348d02c6891d857d047"
+        :sha256 => ENV['XCFRAMEWORK_SHA'] || "d16232638a97f1e18a68ce97dcea1e12c3276bc0ecff37e50e50e44b92bd579b"  #fallback to first version sha
     }
 
     # ――― Project Settings ――――――――――――――――――――――――――――――――――――――――――――――――――――――――― #