Now trying to follow an actual guide

.github/workflows/workflow.yml

@@ -146,71 +146,48 @@ jobs:
           dart run flutter_launcher_icons
           dart run flutter_native_splash:create
 
-      - name: Set up code signing
+      - name: Install Apple certificate and provisioning profile
+        env:
+          BUILD_CERTIFICATE_BASE64: ${{ secrets.IOS_DISTRIBUTION_CERTIFICATE_BASE64 }}
+          P12_PASSWORD: ""
+          BUILD_PROVISION_PROFILE_BASE64: ${{ secrets.IOS_APPSTORE_PROVISIONING_PROFILE_BASE64 }}
+          KEYCHAIN_PASSWORD: ${{ secrets.IOS_KEYCHAIN_PASSWORD }}
         run: |
-          # Create temporary keychain
-          security create-keychain -p "${{ secrets.IOS_KEYCHAIN_PASSWORD }}" build.keychain
-          security default-keychain -s build.keychain
-          security unlock-keychain -p "${{ secrets.IOS_KEYCHAIN_PASSWORD }}" build.keychain
-          security set-keychain-settings -t 3600 -u build.keychain
+          # create variables
+          CERTIFICATE_PATH=$RUNNER_TEMP/build_certificate.p12
+          PP_PATH=$RUNNER_TEMP/build_pp.mobileprovision
+          KEYCHAIN_PATH=$RUNNER_TEMP/app-signing.keychain-db
 
-          # Import certificate
-          echo "${{ secrets.IOS_DISTRIBUTION_CERTIFICATE_BASE64 }}" | base64 --decode > certificate.p12
-          security import certificate.p12 -k build.keychain -P "" -T /usr/bin/codesign
-          security set-key-partition-list -S apple-tool:,apple:,codesign: -s -k "${{ secrets.IOS_KEYCHAIN_PASSWORD }}" build.keychain
+          # import certificate and provisioning profile from secrets
+          echo -n "$BUILD_CERTIFICATE_BASE64" | base64 --decode -o $CERTIFICATE_PATH
+          echo -n "$BUILD_PROVISION_PROFILE_BASE64" | base64 --decode -o $PP_PATH
 
-          # Debug: List what certificates we have
-          security find-identity -v -p codesigning build.keychain
+          # create temporary keychain
+          security create-keychain -p "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
+          security set-keychain-settings -lut 21600 $KEYCHAIN_PATH
+          security unlock-keychain -p "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
 
-          # Install provisioning profile
+          # import certificate to keychain
+          security import $CERTIFICATE_PATH -P "$P12_PASSWORD" -A -t cert -f pkcs12 -k $KEYCHAIN_PATH
+          security set-key-partition-list -S apple-tool:,apple: -k "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
+          security list-keychain -d user -s $KEYCHAIN_PATH
+
+          # apply provisioning profile
           mkdir -p ~/Library/MobileDevice/Provisioning\ Profiles
-          echo "${{ secrets.IOS_APPSTORE_PROVISIONING_PROFILE_BASE64 }}" | base64 --decode > ~/Library/MobileDevice/Provisioning\ Profiles/${{ vars.IOS_PROVISIONING_PROFILE_UUID }}.mobileprovision
-
-          # Configure Xcode project for manual signing with team ID
-          sed -i '' 's/CODE_SIGN_STYLE = Automatic;/CODE_SIGN_STYLE = Manual;/g' ios/Runner.xcodeproj/project.pbxproj
-          sed -i '' 's/DEVELOPMENT_TEAM = "";/DEVELOPMENT_TEAM = "${{ vars.IOS_TEAM_ID }}";/g' ios/Runner.xcodeproj/project.pbxproj
-          sed -i '' 's/DEVELOPMENT_TEAM = ;/DEVELOPMENT_TEAM = "${{ vars.IOS_TEAM_ID }}";/g' ios/Runner.xcodeproj/project.pbxproj
-
-          # Create ExportOptions.plist with our values
-          cat > ios/ExportOptions.plist << EOF
-          <?xml version="1.0" encoding="UTF-8"?>
-          <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-          <plist version="1.0">
-          <dict>
-              <key>method</key>
-              <string>app-store</string>
-              <key>teamID</key>
-              <string>${{ vars.IOS_TEAM_ID }}</string>
-              <key>provisioningProfiles</key>
-              <dict>
-                  <key>me.deflock.deflockapp</key>
-                  <string>${{ vars.IOS_PROVISIONING_PROFILE_UUID }}</string>
-              </dict>
-              <key>signingStyle</key>
-              <string>manual</string>
-              <key>uploadBitcode</key>
-              <false/>
-              <key>uploadSymbols</key>
-              <true/>
-              <key>compileBitcode</key>
-              <false/>
-          </dict>
-          </plist>
-          EOF
+          cp $PP_PATH ~/Library/MobileDevice/Provisioning\ Profiles
 
       - name: Build iOS .ipa
         run: |
           flutter build ipa --release \
             --dart-define=OSM_PROD_CLIENTID='${{ secrets.OSM_PROD_CLIENTID }}' \
-            --dart-define=OSM_SANDBOX_CLIENTID='${{ secrets.OSM_SANDBOX_CLIENTID }}' \
-            --export-options-plist=ios/ExportOptions.plist
+            --dart-define=OSM_SANDBOX_CLIENTID='${{ secrets.OSM_SANDBOX_CLIENTID }}'
           cp build/ios/iphoneos/Runner.ipa Runner.ipa
-          
-      - name: Clean up keychain
+
+      - name: Clean up keychain and provisioning profile
         if: always()
         run: |
-          security delete-keychain build.keychain
-          rm -f certificate.p12
+          security delete-keychain $RUNNER_TEMP/app-signing.keychain-db
+          rm ~/Library/MobileDevice/Provisioning\ Profiles/build_pp.mobileprovision
 
       - name: Upload IPA artifact
         uses: actions/upload-artifact@v4