Issue #SB-2730: Add hook for auto format of Java code on commit

git-hooks/pre-commit

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+REPO_ROOT_DIR="$(git rev-parse --show-toplevel)"
+
+FORMAT_JAR_LOCATION="${REPO_ROOT_DIR}/tools/java-format/google-java-format-1.5-all-deps.jar"
+
+for staged_file in $(git diff --cached --name-only); do
+  [ -f "${staged_file}" ] || continue
+
+  "${REPO_ROOT_DIR}/scripts/check-java-file-format" "${FORMAT_JAR_LOCATION}" "${staged_file}"
+  git add "${staged_file}"
+done

scripts/check-java-file-format

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+FILES_TO_SKIP="^(src-gen|third-party|(test/.*\/testdata\/)).*\.java$"
+
+JAR_PATH=$1
+FILE_PATH=$2
+
+# Test if the file is Java file
+echo "${FILE_PATH}" | grep -Eqi "\.java$" || exit 1
+
+# Test if the file should be skipped
+echo "${FILE_PATH}" | grep -Eqi "${FILES_TO_SKIP}" && exit 0
+
+# Try to format the file
+java -jar "${JAR_PATH}" -i "${FILE_PATH}"
+
+exit 0

scripts/setup.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+REPO_ROOT_DIR="$(git rev-parse --show-toplevel)"
+
+cp "${REPO_ROOT_DIR}/git-hooks/pre-commit" "${REPO_ROOT_DIR}/.git/hooks/"