gh-actions: init

.github/dependabot.yaml

@@ -0,0 +1,17 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/ci.yaml

@@ -0,0 +1,69 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+    tags: [ '*' ]
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        target:
+          - x86_64-unknown-linux-gnu
+          - aarch64-unknown-linux-gnu
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ matrix.target }}-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-${{ matrix.target }}-
+
+      - uses: dtolnay/rust-toolchain@stable
+
+      - name: Install cross
+        run: wget -cO - https://github.com/cross-rs/cross/releases/latest/download/cross-x86_64-unknown-linux-gnu.tar.gz | tar -xz
+
+      - name: Build
+        run: ./cross build --release --target ${{ matrix.target }}
+
+      - name: Rename binary
+        run: |
+          mv target/${{ matrix.target }}/release/post post_${{ matrix.target }}
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: post_${{ matrix.target }}
+          path: post_${{ matrix.target }}
+
+      - uses: crazy-max/ghaction-github-release@v2
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          files: post_${{ matrix.target }}
+
+  nix:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: cachix/install-nix-action@V27
+
+      - run: nix build -L
+      - run: nix flake check -L