#!/bin/bash
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "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.


if [[ -z `which xpath 2> /dev/null` ]]; then
  echo "ERROR: xpath not found in path, install xpath first"
  exit
fi

DIR=$(cd "$(dirname "$0")" && pwd)
TOP_DIR=$DIR/..

function echo_separator {
  echo "======================"
}

function parse_profiles {
  all_profiles=""
  poms=$(find $TOP_DIR -name pom.xml)
  for pom in $poms; do
    # Returns something like:
    #   <id>hadoop_0.20.203</id><id>hadoop_1.0</id><id>hadoop_non_secure</id> ...
    profiles=$(xpath $pom '//project/profiles/profile/id' 2> /dev/null)

    # Transform into:
    #   hadoop_0.20.203 hadoop_1.0 ...
    profiles=${profiles//<\/id>/}
    profiles=${profiles//<id>/ }

    # Append to accumulating list
    all_profiles="$all_profiles $profiles"
  done

  # Sort and uniq the whole list
  all_profiles=$(echo "$all_profiles" | tr -s ' ' "\n" | sort | uniq)
}

parse_profiles

echo "Running on profiles: $all_profiles"

failed_profile_file=$TOP_DIR/failed-profile.txt
if [[ -r "$failed_profile_file" ]]; then
  echo "Reading $failed_profile_file to restart from last run state."
  echo "Remove that file if you want a fresh run"
  failed_profile=$(cat $failed_profile_file)
  run_profile=false
else
  run_profile=true
fi

for profile in $all_profiles; do
  if ! $run_profile; then
    if [[ "${profile}" == "${failed_profile}" ]]; then
      run_profile=true
    fi
  fi
  if $run_profile; then
    echo_separator
    echo "=== $profile ==="
    echo_separator

    mvn -P$profile $@
    result=$?

    if [[ $result -ne 0 ]]; then
      echo_separator
      echo "=== Failed on profile: $profile"
      echo "=== Failed command: mvn -P$profile $@"
      echo_separator
      echo $profile > $failed_profile_file
      exit $result
    fi
  else
    echo_separator
    echo "=== Skipping profile $profile"
    echo_separator
  fi
done