update(entrypoint): remove conditional trigger event & dynamic source…

… encoding

and code-style

entrypoint.sh

@@ -2,17 +2,9 @@
 
 set -e
 
-if [[ "${GITHUB_EVENT_NAME}" == "pull_request" ]]; then
-	EVENT_ACTION=$(jq -r ".action" "${GITHUB_EVENT_PATH}")
-	if [[ "${EVENT_ACTION}" != "opened" ]]; then
-		echo "No need to run analysis. It is already triggered by the push event."
-		exit
-	fi
-fi
-
 REPOSITORY_NAME=$(basename "${GITHUB_REPOSITORY}")
 
-if [[ ! -z ${INPUT_PASSWORD} ]]; then
+if [[ ! -z "${INPUT_PASSWORD}" ]]; then
   echo "::warning ::Running this GitHub Action without authentication token is NOT recommended!"
   SONAR_PASSWORD="${INPUT_PASSWORD}"
 else
@@ -32,9 +24,9 @@ fi
 unset JAVA_HOME
 
 if [[ ! -f "${INPUT_PROJECTBASEDIR%/}sonar-project.properties" ]]; then
-  [[ -z ${INPUT_PROJECTKEY} ]] && SONAR_PROJECTKEY="${REPOSITORY_NAME}" || SONAR_PROJECTKEY="${INPUT_PROJECTKEY}"
-  [[ -z ${INPUT_PROJECTNAME} ]] && SONAR_PROJECTNAME="${REPOSITORY_NAME}" || SONAR_PROJECTNAME="${INPUT_PROJECTNAME}"
-  [[ -z ${INPUT_PROJECTVERSION} ]] && SONAR_PROJECTVERSION="" || SONAR_PROJECTVERSION="${INPUT_PROJECTVERSION}"
+  [[ -z "${INPUT_PROJECTKEY}" ]] && SONAR_PROJECTKEY="${REPOSITORY_NAME}" || SONAR_PROJECTKEY="${INPUT_PROJECTKEY}"
+  [[ -z "${INPUT_PROJECTNAME}" ]] && SONAR_PROJECTNAME="${REPOSITORY_NAME}" || SONAR_PROJECTNAME="${INPUT_PROJECTNAME}"
+  [[ -z "${INPUT_PROJECTVERSION}" ]] && SONAR_PROJECTVERSION="" || SONAR_PROJECTVERSION="${INPUT_PROJECTVERSION}"
   sonar-scanner \
     -Dsonar.host.url=${INPUT_HOST} \
     -Dsonar.projectKey=${SONAR_PROJECTKEY} \
@@ -44,7 +36,7 @@ if [[ ! -f "${INPUT_PROJECTBASEDIR%/}sonar-project.properties" ]]; then
     -Dsonar.login=${INPUT_LOGIN} \
     -Dsonar.password=${SONAR_PASSWORD} \
     -Dsonar.sources=. \
-    -Dsonar.sourceEncoding=UTF-8
+    -Dsonar.sourceEncoding=${INPUT_ENCODING}
 else
   sonar-scanner \
     -Dsonar.host.url=${INPUT_HOST} \