chore: Add pre-commit hooks

Author: Stranger6667

.gitignore

@@ -9,4 +9,4 @@ Cargo.lock
 # These are backup files generated by rustfmt
 **/*.rs.bk
 
-.idea
+.idea

.pre-commit-config.yaml

@@ -0,0 +1,31 @@
+default_language_version:
+  python: python3.7
+
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v2.5.0
+    hooks:
+      - id: check-yaml
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+        exclude: ^.*\.(md|rst)$
+      - id: mixed-line-ending
+        args: [--fix=lf]
+      - id: check-merge-conflict
+
+  - repo: https://github.com/jorisroovers/gitlint
+    rev: v0.13.1
+    hooks:
+      - id: gitlint
+
+  - repo: https://github.com/adrienverge/yamllint
+    rev: v1.21.0
+    hooks:
+      - id: yamllint
+
+  - repo: https://github.com/doublify/pre-commit-rust
+    rev: master
+    hooks:
+      - id: fmt
+      - id: cargo-check
+      - id: clippy

Cargo.toml

@@ -8,4 +8,4 @@ edition = "2018"
 
 [dependencies]
 cssparser = "*"
-kuchiki = "0.8"
+kuchiki = "0.8"