add properties_file option

# Conflicts:
#	action.yml
#	entrypoint.sh

README.md

@@ -15,7 +15,6 @@ An example of how the reported Checkstyle violations will look on a pull request
 
 ![PR comment with violation](https://user-images.githubusercontent.com/6915328/149333188-4600a75d-5670-4013-9395-d5852e3c7839.png)
 
-
 ## Usage
 
 ```yaml
@@ -116,3 +115,9 @@ config for the [Sun coding conventions](https://www.oracle.com/java/technologies
  Additional reviewdog flags.
 
  **`Default:`** ``
+
+* ### `properties_file`
+
+ Properties file relative to the root directory.
+
+ **`Default:`** ``

action.yml

@@ -46,6 +46,10 @@ inputs:
  This field will always try to follow Checkstyle releases as close as possible and will use the latest available by default.
  If it is not a default preference for your project, please, pin the needed version using this property.
  default: "10.12.1"
+ properties_file:
+ description: |
+ Properties file relative to the root directory.
+ default: ''
 runs:
  using: "docker"
  image: "Dockerfile"

entrypoint.sh

@@ -1,10 +1,17 @@
 #!/bin/sh
+
+echo "Running check"
+
 set -e
 
 if [ -n "${GITHUB_WORKSPACE}" ] ; then
  cd "${GITHUB_WORKSPACE}" || exit
 fi
 
+if [ -n "${INPUT_PROPERTIES_FILE}" ]; then
+ OPT_PROPERTIES_FILE="-p ${INPUT_PROPERTIES_FILE}"
+fi
+
 export REVIEWDOG_GITHUB_API_TOKEN="${INPUT_GITHUB_TOKEN}"
 
 printenv
@@ -13,7 +20,7 @@ ls
 # fetch checkstyle of a requested version
 wget -O - -q "https://github.com/checkstyle/checkstyle/releases/download/checkstyle-${INPUT_CHECKSTYLE_VERSION}/checkstyle-${INPUT_CHECKSTYLE_VERSION}-all.jar" > /checkstyle.jar
 
-exec java -jar /checkstyle.jar -c "${INPUT_CHECKSTYLE_CONFIG}" "${INPUT_WORKDIR}" -f xml \
+exec java -jar /checkstyle.jar "${INPUT_WORKDIR}" -c "${INPUT_CHECKSTYLE_CONFIG}" "${INPUT_WORKDIR}" ${OPT_PROPERTIES_FILE} -f xml \
  | reviewdog -f=checkstyle \
  -name="checkstyle" \
  -reporter="${INPUT_REPORTER:-github-pr-check}" \