Add pre-commit check for RAT

.gitignore

@@ -15,6 +15,9 @@
 # specific language governing permissions and limitations
 # under the License.
 
+apache-rat-0.12.jar
+arrow-src.tar
+
 # Compiled source
 *.a
 *.dll

.pre-commit-config.yaml

@@ -21,6 +21,14 @@
 # To run all hooks on all files use `pre-commit run -a`
 
 repos:
+  - repo: local
+    hooks:
+      - id: rat
+        name: rat
+        language: system
+        entry: bash -c "git archive HEAD --prefix=apache-arrow/ --output=arrow-src.tar && ./dev/release/run-rat.sh arrow-src.tar"
+        always_run: true
+        pass_filenames: false
   - repo: git://github.com/pre-commit/pre-commit-hooks
     sha: v1.2.3
     hooks:

dev/release/rat_exclude_files.txt

@@ -114,6 +114,7 @@ dev/tasks/linux-packages/debian/plasma-store-server.install
 dev/tasks/linux-packages/debian/rules
 dev/tasks/linux-packages/debian/source/format
 dev/tasks/linux-packages/debian/watch
+doc/requirements.txt
 go/arrow/go.sum
 go/arrow/Gopkg.lock
 go/arrow/internal/cpu/*
@@ -124,7 +125,6 @@ js/.npmignore
 js/closure-compiler-scripts/*
 python/cmake_modules
 python/cmake_modules/*
-python/doc/requirements.txt
 python/MANIFEST.in
 python/pyarrow/includes/__init__.pxd
 python/pyarrow/tests/__init__.py

dev/release/run-rat.sh

@@ -19,7 +19,9 @@
 #
 
 # download apache rat
-curl -s https://repo1.maven.org/maven2/org/apache/rat/apache-rat/0.12/apache-rat-0.12.jar > apache-rat-0.12.jar
+if [ ! -f apache-rat-0.12.jar ]; then
+  curl -s https://repo1.maven.org/maven2/org/apache/rat/apache-rat/0.12/apache-rat-0.12.jar > apache-rat-0.12.jar
+fi
 
 RAT="java -jar apache-rat-0.12.jar -x "