#!/usr/bin/env bash

# Utility to get basic "startup" files for Platform's CBI Build


# this localBuildProperties.shsource file is to ease local builds to override some variables.
# It should not be used for production builds.
source localBuildProperties.shsource 2>/dev/null
export GIT_HOST=${GIT_HOST:-"git.eclipse.org"}

export BUILD_HOME=${BUILD_HOME:-/shared/eclipse/builds}

if [[ -z "${BRANCH}" ]]
then
   export BRANCH=master
   printf "/n/tWARNING: %s/n" "BRANCH was not defined. 'master' was assumed"
fi

# A constant, in Platform builds
export AGGR_REPO_NAME=eclipse.platform.releng.aggregator

# contrary to intuition (and previous behavior, bash 3.1) do NOT use quotes around right side of expression.
if [[ "${STREAM}" =~ ^([[:digit:]]+)\.([[:digit:]]+)\.([[:digit:]]+)$ ]]
then
  export STREAMMajor=${BASH_REMATCH[1]}
  export STREAMMinor=${BASH_REMATCH[2]}
  export STREAMService=${BASH_REMATCH[3]}
else
  echo "STREAM must contain major, minor, and service versions, such as 4.3.0"
  echo "    but found ${STREAM}"
  exit 1
fi

if [[ ! "${BUILD_TYPE}" =~ [IMNPXY] ]]
then
  echo "BUILD_TYPE must by I,M, N, P, X, or Y"
  echo "    but found ${BUILD_TYPE}"
  exit 1
fi

# if not defined "externally", we use default for eclipse.org
if [[ -z $REPO_AND_ACCESS ]]
then
  # unless we are on 'build' machine
  if [[ "build" == "$(hostname)" ]]
  then
    export REPO_AND_ACCESS=file:///gitroot
  else
    export REPO_AND_ACCESS=git://git.eclipse.org/gitroot
  fi
fi


export BUILD_ROOT=${BUILD_ROOT:-${BUILD_HOME}/${STREAMMajor}${BUILD_TYPE}}
echo "Exporting production scripts ... "
echo "  STREAM: $STREAM"
echo "  STREAMMajor: $STREAMMajor"
echo "  STREAMMinor: $STREAMMinor"
echo "  STREAMService: $STREAMService"
echo "  BUILD_TYPE: $BUILD_TYPE"
echo "  BUILD_ROOT: $BUILD_ROOT"
echo "  BUILD_HOME: $BUILD_HOME"
echo "  PRODUCTION_SCRIPTS_DIR: $PRODUCTION_SCRIPTS_DIR"
echo "  REPO_AND_ACCESS: $REPO_AND_ACCESS"

# We put these in build_root in case two builds get started at once.
# (such as N and I build, both from master).

# TODO: could maybe do pull here, if already exists?
rm -fr $BUILD_ROOT/tmp/${AGGR_REPO_NAME} 2>/dev/null
if [[ $? != 0 ]]
then
  echo "[ERROR] Exiting, since could not remove $BUILD_ROOT/tmp/${AGGR_REPO_NAME} as expected."
  exit 1
fi

# Make dir in case first run (note: this must be after the above "removes",
# or else first time through they will remove this directory itself.
mkdir -p ${BUILD_ROOT}/tmp
if [[ $? != 0 ]]
then
  echo "[ERROR] Exiting, since could not make $BUILD_ROOT/tmp, as expected."
  exit 1
fi


git clone -b ${BRANCH} ${REPO_AND_ACCESS}/platform/${AGGR_REPO_NAME} $BUILD_ROOT/tmp/${AGGR_REPO_NAME}
RC=$?
if [[ $RC != 0 ]]
then
  echo "Could not clone repo as expected"
  exit $RC
fi

#remove any previous production scripts, to make sure completely fresh
rm -fr $BUILD_ROOT/${PRODUCTION_SCRIPTS_DIR} 2>/dev/null

# cp whole script directory "up" so directly under build_root, in constant place
cp -r $BUILD_ROOT/tmp/${AGGR_REPO_NAME}/${PRODUCTION_SCRIPTS_DIR} ${BUILD_ROOT}

if [[ $? != 0 ]]
then
  echo "Exiting, since could not copy production scripts, as expected."
  exit 1
fi

chmod +x ${BUILD_ROOT}/${PRODUCTION_SCRIPTS_DIR}/*.sh

if [[ $? != 0 ]]
then
  echo "Could not chmod of production scripts to executable. Running under wrong id?"
  exit 1
fi