feat: precompiled_binaries CI (cargokit)

Author: ethicnology

.github/workflows/precompiled_binaries.yml

@@ -0,0 +1,47 @@
+on:
+  push:
+    branches: [ master ]
+
+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@v2
+      - 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=ethicnology/rust-bip85
+        working-directory: bindings/dart-bip85/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=ethicnology/rust-bip85 --android-sdk-location=/usr/local/lib/android/sdk --android-ndk-version=24.0.8215888 --android-min-sdk-version=23
+        working-directory: bindings/dart-bip85/cargokit/build_tool
+        env:
+          GITHUB_TOKEN: ${{ secrets.RELEASE_GITHUB_TOKEN }}
+          PRIVATE_KEY: ${{ secrets.RELEASE_PRIVATE_KEY }}

bindings/dart-bip85/rust/cargokit.yaml

@@ -0,0 +1,15 @@
+cargo:
+  debug: # Configuration of cargo execution during debug builds
+    toolchain: stable # default
+  release: # Configuration of cargo execution for release builds
+    toolchain: nightly # rustup will be invoked with nightly toolchain
+    extra_flags: # extra arguments passed to cargo build
+      - -Z
+      - build-std=panic_abort,std
+
+precompiled_binaries:
+  # Uri prefix used when downloading precompiled binaries.
+  url_prefix: https://github.com/ethicnology/rust-bip85/releases/download/precompiled_
+
+  # Public key for verifying downloaded precompiled binaries.
+  public_key: e56a85ab8294c9f0cd8bb58a624e23b83b5682380d048e41b041b6624d949976