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#!/bin/bash -e

# based on : https://hdpe.me/post/maven-checkstyle-pre-commit-hook/

# DESCRIPTION

# Considering only the staged .java files, it walks the filesystem tree

# to look for any modules (it considers a module if it has a pom.xml file).

# For each module found it runs Checkstyle on it.

function get_module() {

local path=$1;

while true; do

path=$(dirname $path);

if [ -f "$path/pom.xml" ]; then

echo "$path";

return;

elif [[ "./" =~ "$path" ]]; then

return;

done

}

modules=();

for file in $(git diff --name-only --cached \*.java); do

module=$(get_module "$file");

if [ "" != "$module" ] \

&& [[ ! " ${modules[@]} " =~ " $module " ]]; then

modules+=("$module");

done;

if [ ${#modules[@]} -eq 0 ]; then

exit;

for dir in ${modules[@]}; do

cd ${dir};

mvn checkstyle:check -Dcheckstyle.config.location=google_checks.xml -Dcheckstyle.consoleOutput=true;

cd ..;

done;