add pre commit config

.pre-commit-config.yaml

@@ -0,0 +1,47 @@
+fail_fast: false
+repos:
+  - repo: <https://github.com/pre-commit/pre-commit-hooks>
+    rev: v2.3.0
+    hooks:
+      - id: check-byte-order-marker
+      - id: check-case-conflict
+      - id: check-merge-conflict
+      - id: check-symlinks
+      - id: check-yaml
+      - id: end-of-file-fixer
+      - id: mixed-line-ending
+      - id: trailing-whitespace
+  - repo: <https://github.com/psf/black>
+    rev: 19.3b0
+    hooks:
+      - id: black
+  - repo: local
+    hooks:
+      - id: cargo-fmt
+        name: cargo fmt
+        description: Format files with rustfmt.
+        entry: bash -c 'cargo fmt -- --check'
+        language: rust
+        files: \\.rs$
+        args: []
+      - id: cargo-check
+        name: cargo check
+        description: Check the package for errors.
+        entry: bash -c 'cargo check --all'
+        language: rust
+        files: \\.rs$
+        pass_filenames: false
+      - id: cargo-clippy
+        name: cargo clippy
+        description: Lint rust sources
+        entry: bash -c 'cargo clippy --all-targets --all-features --tests --benches -- -D warnings'
+        language: rust
+        files: \\.rs$
+        pass_filenames: false
+      - id: cargo-test
+        name: cargo test
+        description: unit test for the project
+        entry: bash -c 'cargo test --all-features --all'
+        language: rust
+        files: \\.rs$
+        pass_filenames: false