maven_utils.sh

#!/bin/bash
#
# maven util functions for build.
#
################################################################################
# api functions:
#
#   - mvu::mvn_cmd
################################################################################
#
#_ source guard begin _#
[ -n "${source_guard_364DF1B5_9CA2_44D3_9C62_CDF6C2ECB24F:+has_value}" ] && return
source_guard_364DF1B5_9CA2_44D3_9C62_CDF6C2ECB24F=$(realpath -- "${BASH_SOURCE[0]}")
# the value of source guard is the canonical dir path of this script
readonly source_guard_364DF1B5_9CA2_44D3_9C62_CDF6C2ECB24F=${source_guard_364DF1B5_9CA2_44D3_9C62_CDF6C2ECB24F%/*}
#_ source guard end _#

set -eEuo pipefail

# shellcheck source=common_utils.sh
source "$source_guard_364DF1B5_9CA2_44D3_9C62_CDF6C2ECB24F/common_utils.sh"

#################################################################################
# maven operation functions
#################################################################################

readonly MVU_DEFAULT_MVN_OPTS=(
  -V --no-transfer-progress
)

mvu::_find_mvn_cmd_path() {
  if [ -n "${_MVU_MVN_PATH:-}" ]; then
    echo "$_MVU_MVN_PATH"
    return
  fi

  local -r maven_wrapper_name="mvnw"

  # 1. find the mvnw from project root dir
  if [[ -n "${PROJECT_ROOT_DIR:-}" && -e "$PROJECT_ROOT_DIR/$maven_wrapper_name" ]]; then
    _MVU_MVN_PATH="$PROJECT_ROOT_DIR/$maven_wrapper_name"
    echo "$_MVU_MVN_PATH"
    return
  fi

  # 2. find mvnw from parent dirs
  local d
  d=$(realpath -- "$PWD")
  while true; do
    local mvnw_path="$d/$maven_wrapper_name"
    [ -x "$mvnw_path" ] && {
      _MVU_MVN_PATH="$mvnw_path"
      echo "$_MVU_MVN_PATH"
      return
    }

    [ "/" = "$d" ] && break
    d=${d%/*}
  done

  # 3. find mvn from $PATH
  if command -v mvn &>/dev/null; then
    _MVU_MVN_PATH=mvn
    echo "$_MVU_MVN_PATH"
    return
  fi

  cu::die "$(
    echo "fail to find mvn cmd!"
    echo "found locations:"
    echo "  - \$PROJECT_ROOT_DIR/mvnw($PROJECT_ROOT_DIR/mvnw)"
    echo "  - \$PWD/mvnw($PWD/mvnw) and its parent dirs"
    echo "  - mvn on \$PATH"
  )"
}

mvu::mvn_cmd() {
  (($# > 0)) || cu::die "${FUNCNAME[0]} requires arguments! But no provided"

  cu::log_then_run "$(mvu::_find_mvn_cmd_path)" \
    "${MVU_MVN_OPTS[@]}" \
    "$@"
}

mvu::get_mvn_local_repository_dir() {
  (($# == 0)) || cu::die "${FUNCNAME[0]} requires no arguments! But provided $#: $*"

  if [ -z "${_MVU_MVN_LOCAL_REPOSITORY_DIR:-}" ]; then
    echo "$_MVU_MVN_LOCAL_REPOSITORY_DIR"
  fi

  _MVU_MVN_LOCAL_REPOSITORY_DIR="$(
    mvu::mvn_cmd --no-transfer-progress help:evaluate -Dexpression=settings.localRepository |
      grep '^/'
  )"

  [ -n "${_MVU_MVN_LOCAL_REPOSITORY_DIR:-}" ] || cu::die "Fail to find maven local repository directory"
}

################################################################################
# auto run logic when source
################################################################################

mvu::__auto_run_when_source() {
  # set VAR if absent

  if [ -z "${MVU_MVN_OPTS[*]:-}" ]; then
    MVU_MVN_OPTS=("${MVU_DEFAULT_MVN_OPTS[@]}")
  fi
}

mvu::__auto_run_when_source