add circleci

Author: gkorland

.circleci/config.yml

@@ -0,0 +1,59 @@
+version: 2
+
+jobs:
+  build:
+    docker:
+      - image: circleci/rust
+
+    steps:
+      - checkout
+      - run:
+          name: Version information
+          command: rustc --version; cargo --version; rustup --version
+
+      - run:
+          name: Install prerequisite
+          command: sudo apt-get install -y clang llvm
+
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ arch }}-{{ checksum "Cargo.lock" }}
+            # fallback to using the latest cache if no exact match is found
+            - v1-dependencies-
+#      - run:
+#          name: Check formatting
+#          command: |
+#            rustfmt --version
+#            cargo fmt -- --write-mode=diff
+
+      - run:
+          name: Build all targets
+          command: cargo build --all --all-targets
+
+#      - run:
+#          name: Nightly Build
+#          command: |
+#            rustup run nightly rustc --version --verbose
+#            rustup run nightly cargo --version --verbose
+#            rustup run nightly cargo build
+#      - run:
+#          name: Stable Build
+#          command: |
+#            rustup run stable rustc --version --verbose
+#            rustup run stable cargo --version --verbose
+#            rustup run stable cargo build
+#      - run:
+#          name: Test
+#          command: rustup run stable cargo test
+#      - run:
+#          name: Upload Coverage
+#          command: ./scripts/codecov.sh
+      - save_cache:
+          key: v1-dependencies-{{ arch }}-{{ checksum "Cargo.lock" }}
+          paths:
+            - "~/.cargo"
+            - "./target"
+
+      - run:
+          name: Run all tests
+          command: cargo test --all