functions

#
# Utility function to check return values on commands
#
function checkrv {
  if [ $1 -gt 0 ]; then
    echo "$2 failed with return value $1"
    exit 1
  else
    echo "$2 succeeded return value $1"
  fi
}

# init_build_cat <cat>
function init_build_cat {
  if [ -z "$1" ]; then
    echo -n "dev"
  else
    echo -n "$1"
  fi
}

# init_build_cat <name>
function init_build_name {
  if [ -z "$1" ]; then
    echo -n "latest"
  else
    echo -n "$1"
  fi
}

# init_mvn_repo <name>
function init_mvn_repo {
  # set up the maven repository for this particular branch/tag/etc...
  local name=$1
  if [ -z "$name" ]; then
    name="default"
  fi
  local mvn_root=$WORKSPACE/mvn/$name
  local mvn_repo=$mvn_root/repo
  local mvn_settings=$mvn_root/settings.xml
  local mvn_settings_template=$WORKSPACE/mvn/settings.xml.in

  if [ ! -d $mvn_root ]; then
    mkdir -p $mvn_repo

    if [ -e $mvn_settings_template ]; then
      sed "s/@REPO_NAME@/$name/g" $mvn_settings_template > $mvn_settings
    else
      echo "<settings> 
  <localRepository>$mvn_repo</localRepository>
</settings>" > $mvn_settings
    fi
  fi

  echo -n $mvn_settings
}

# get_rev <path>
function get_rev {
  local rev=`git log --format=format:%h | head -n 1`
  if [ "x$rev" == "x" ]; then
    echo "failed to get revision number from git info"
    exit 1
  fi

  echo -n $rev
}

# get_last_built_rev <name>
function get_last_built_rev {
  local REVDIR=$WORKSPACE/revs

  if [ ! -e $REVDIR ]; then
    mkdir $REVDIR
  fi

  pushd $REVDIR > /dev/null
  local REV="" 
  if [ -e $1 ]; then 
    REV=`cat $1`
  fi
  popd > /dev/null

  echo -n $REV
}

# set_last_built_rev <name> <rev>
function set_last_built_rev {
  echo "$2" > $WORKSPACE/revs/$1
}

# get_submodule_rev <submodule_path>
function get_submodule_rev {
  local rev=`git submodule status $1 | sed 's/^..//' | cut -f 1 -d ' '`
  echo -n $rev
}

# get_submodule_branch <submodule_path>
function get_submodule_branch {
  local branch=`git submodule status $1 | sed 's/^..//' | cut -f 3 -d ' ' | sed 's/(//g' | sed 's/)//g' | sed 's/.*\/\(.*\)/\1/g'`
  echo -n $branch
}

# start_installer_job <job_url> <credentials>
function start_installer_job {
  local creds=build:$2
   curl -k --connect-timeout 10 --user $creds "$1/buildWithParameters?CAT=${BUILD_CAT}&NAME=${BUILD_NAME}&BRANCH=${GIT_BRANCH}&REV=${GIT_COMMIT:0:7}&TOKEN=buildme"
}