Add Github action (#5)

This change adds a GH action that checks formatting and runs cargo
clippy as well as the current test suite.

Author: 1c3t3a

.github/workflows/check.yml

@@ -0,0 +1,53 @@
+on:
+  push:
+    branches:
+      - "main"
+  pull_request:
+
+name: check
+jobs:
+  fmt:
+    runs-on: ubuntu-latest
+    name: Check
+    permissions:
+      checks: write
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - name: Install stable
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          components: rustfmt
+      - name: cargo fmt --check
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --check
+      - name: cargo clippy
+        uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+  test:
+    runs-on: ubuntu-latest
+    name: Run test suite
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - name: Install nightly
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          default: true
+      - name: cargo test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all-features
+      - name: Run abort tests
+        run: ./abort_tests.sh

.github/workflows/publish.yml

@@ -0,0 +1,20 @@
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+name: publish
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    name: Publish
+    steps:
+        - uses: actions/checkout@v2
+        - uses: actions-rs/toolchain@v1
+          with:
+              toolchain: stable
+              override: true
+        - run: cargo login ${CRATES_IO_TOKEN}
+          env:
+            CRATES_IO_TOKEN: ${{ secrets.CRATES_IO_TOKEN }}
+        - run: ./publish.sh

publish.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#
+# This script will publish all crates in this repository. This script also provides
+# a `--dry-run` option that runs `cargo publish` with the dry-run option.
+
+cmd="cargo publish"
+if [ "$1" == "--dry-run" ]; then
+    cmd="${cmd} --dry-run"
+fi
+
+cd scudo-proc-macros || exit 1
+echo "Executing: ${cmd}; in $(pwd)"
+$cmd || exit 1
+cd ../scudo-sys || exit 1
+echo "Executing: ${cmd}; in $(pwd)"
+$cmd || exit 1
+cd ../scudo || exit 1
+echo "Executing: ${cmd}; in $(pwd)"
+$cmd || exit 1
+cd .. || exit 1