feat: precompiled binaries

.github/workflows/precompiled_binaries.yml

@@ -0,0 +1,44 @@
+on:
+  push:
+    branches: [ trunk ]
+
+name: Precompile Binaries
+jobs:
+  Precompile:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-20.04
+          - macOS-latest
+          - windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dart-lang/setup-dart@v1
+
+      - name: Install GTK
+        if: (matrix.os == 'ubuntu-latest')
+        run: sudo apt-get update && sudo apt-get install libgtk-3-dev
+      - name: Set up Android SDK
+        if: (matrix.os == 'ubuntu-20.04')
+        uses: android-actions/setup-android@v2 
+
+      - name: Install Specific NDK
+        if: (matrix.os == 'ubuntu-20.04')
+        run: sdkmanager --install "ndk;24.0.8215888" 
+      - name: Precompile
+        if: (matrix.os == 'macOS-latest') || (matrix.os == 'windows-latest')
+        run: dart run build_tool precompile-binaries -v --manifest-dir=../../rust --repository=SatoshiPortal/lwk-dart
+        working-directory: cargokit/build_tool
+        env:
+          GITHUB_TOKEN: ${{ secrets.RELEASE_GITHUB_TOKEN }}
+          PRIVATE_KEY: ${{ secrets.RELEASE_PRIVATE_KEY }}
+
+      - name: Precompile (with Android)
+        if: (matrix.os == 'ubuntu-latest')
+        run: dart run build_tool precompile-binaries -v --manifest-dir=../../rust --repository=SatoshiPortal/lwk-dart --android-sdk-location=/usr/local/lib/android/sdk --android-ndk-version=24.0.8215888 --android-min-sdk-version=23
+        working-directory: cargokit/build_tool
+        env:
+          GITHUB_TOKEN: ${{ secrets.RELEASE_GITHUB_TOKEN }}
+          PRIVATE_KEY: ${{ secrets.RELEASE_PRIVATE_KEY }

cargokit/build_tool/lib/src/options.dart

@@ -298,7 +298,10 @@ class CargokitUserOptions {
       }
       userProjectDir = userProjectDir.parent;
     }
-    return CargokitUserOptions._();
+    return CargokitUserOptions(
+      usePrecompiledBinaries: true,
+      verboseLogging: false,
+    );
   }
 
   final bool usePrecompiledBinaries;

rust/cargokit.yml

@@ -0,0 +1,13 @@
+cargo:
+  debug:
+    toolchain: stable
+  release:
+    toolchain: nightly
+    extra_flags:
+      - -Z
+      - build-std=panic_abort,std
+precompiled_binaries:
+  # Uri prefix used when downloading precompiled binaries.
+  url_prefix: https://github.com/SatoshiPortal/lwk-dart/releases/download/precompiled_
+  # Public key for verifying downloaded precompiled binaries.
+  public_key: <RELEASE_PUBLIC_KEY>