Refactor main function in accumulo script

assemble/bin/accumulo

@@ -15,81 +15,4 @@
 # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
-# under the License.
-#
-
-function main() {
-
-  SOURCE="${BASH_SOURCE[0]}"
-  while [[ -L ${SOURCE} ]]; do
-    bin="$(cd -P "$(dirname "${SOURCE}")" && pwd)"
-    SOURCE="$(readlink "${SOURCE}")"
-    [[ ${SOURCE} != /* ]] && SOURCE="${bin}/${SOURCE}"
-  done
-  # Set up variables needed by accumulo-env.sh
-  bin="$(cd -P "$(dirname "${SOURCE}")" && pwd)"
-  export bin
-  basedir=$(cd -P "${bin}"/.. && pwd)
-  export basedir
-  export conf="${ACCUMULO_CONF_DIR:-${basedir}/conf}"
-  export lib="${basedir}/lib"
-  export cmd="$1"
-  if [[ $cmd == "proc" ]]; then
-    cmd="$2"
-  fi
-
-  if [[ -z $conf || ! -d $conf ]]; then
-    echo "$conf is not a valid directory.  Please make sure it exists"
-    exit 1
-  fi
-  if [[ ! -f "$conf/accumulo-env.sh" ]]; then
-    echo "accumulo-env.sh must exist in $conf"
-    exit 1
-  fi
-  #shellcheck source=../conf/accumulo-env.sh
-  source "$conf/accumulo-env.sh"
-
-  # Accumulo is moving away from these variables but they still might be needed
-  export ACCUMULO_HOME="$basedir"
-  export ACCUMULO_CONF_DIR="$conf"
-
-  # Verify setting in accumulo-env.sh
-  : "${JAVA_OPTS:?"variable is not set in accumulo-env.sh"}"
-  : "${CLASSPATH:?"variable is not set in accumulo-env.sh"}"
-  : "${ACCUMULO_LOG_DIR:?"variable is not set in accumulo-env.sh"}"
-  mkdir -p "${ACCUMULO_LOG_DIR}" 2>/dev/null
-  : "${MALLOC_ARENA_MAX:?"variable is not set in accumulo-env.sh"}"
-
-  if [[ $cmd == "classpath" ]]; then
-    echo "$CLASSPATH"
-    exit 0
-  fi
-
-  # Start up JShell with Accumulo
-  local jShellPath="$conf/jshell-init.jsh"
-  if [[ $cmd == "jshell" ]]; then
-    shift
-    if [[ -f $jShellPath ]]; then
-      exec "$cmd" --startup DEFAULT --startup "$jShellPath" "$@"
-    else
-      exec "$cmd" "$@"
-    fi
-  fi
-
-  if [[ -x "$JAVA_HOME/bin/java" ]]; then
-    JAVA="$JAVA_HOME/bin/java"
-  else
-    JAVA=$(type -P java)
-  fi
-  if [[ ! -x $JAVA ]]; then
-    echo "Could not find any executable java binary. Please set java on your PATH or set JAVA_HOME"
-    exit 1
-  fi
-  if [[ -n $ACCUMULO_JAVA_PREFIX ]]; then
-    JAVA=("${ACCUMULO_JAVA_PREFIX[@]}" "$JAVA")
-  fi
-
-  exec "${JAVA[@]}" "${JAVA_OPTS[@]}" org.apache.accumulo.start.Main "$@"
-}
-
-main "$@"
+# under the