SOURCEME

## SOURCEME

# determine the path to this script.
POLYMERGE_PATH="${BASH_SOURCE[0]}"
if [ -h "${POLYMERGE_PATH}" ]; then
    # echo symbolic link
    while [ -h "${POLYMERGE_PATH}" ]; do POLYMERGE_PATH=`readlink "${POLYMERGE_PATH}"`; done
fi
pushd . > /dev/null
cd `dirname ${POLYMERGE_PATH}` > /dev/null
export POLYMERGE_PATH=`pwd`
popd > /dev/null


if [ ! -d "$POLYMERGE_PATH" ]; then
    echo "Failed to set \`polymerge\` path. It will not be loaded."
    return 1
fi

## core variables.
# these paths are where labs and polymers are managed
export PM_HOME_PATH=~/.polymerge
export PM_LAB_NOTEBOOKS_PATH="${PM_HOME_PATH}/lab_notebooks"
export PM_LAB_REPOS_PATH="${PM_HOME_PATH}/lab_repos"
export PM_LOG_PATH="${PM_HOME_PATH}/log"
export PM_VAR_PATH="${PM_HOME_PATH}/var"

# these are configuration variables
export PM_UPDATE_BRANCH='open-source-updates'  # only useful for development
export PM_LAB_REPO_FILE_NAME='laboratory.repo'
export PM_POLYMERS_FOLDER_NAME='polys'
export PM_ACTIVE_LAB_FILE_NAME='active_lab'
export PM_ACTIVE_POLYMER_FILE_SUFFIX='.active_poly'
export PM_NOTEBOOK_FETCH_DELAY=$(( 60 * 10 ))  # in seconds
export PM_LOG_MAX_SIZE=1000   # in kb
export PM_LOG_FILE_NAME='polymerge.log'
export PM_DEFAULT_MASTHEAD=invita

# derived
export PM_ACTIVE_LAB_FILE_PATH="${PM_VAR_PATH}/${PM_ACTIVE_LAB_FILE_NAME}"
export PM_LOG_FILE_PATH="${PM_LOG_PATH}/${PM_LOG_FILE_NAME}"
export PM_MASTHEAD_PATH="${PM_VAR_PATH}/masthead"





# ensure all submodules are initialized and updated
fshSourceme="${POLYMERGE_PATH}/lib/functionsh/SOURCEME"
if [ ! -f "${fshSourceme}" ]; then
    cd "$POLYMERGE_PATH"
    git submodule update --init &> /dev/null
fi
if [ ! -f "${fshSourceme}" ]; then
    echo "${E} ERROR: ${X} could not initialize \`functionsh\` library."
    return 2
fi


# source all functions (including libraries)
source "$fshSourceme" > /dev/null
if ! type -t __source_all &> /dev/null; then
    echo "${E} ERROR: ${X} Unable to load dependency libraries."
    return 4
fi
__source_all -x "${POLYMERGE_PATH}/functions"
unset fshSourceme


# set up variables to distinguish environment. thanks functionsh!
__get_env


# check for install in user home directory
# if not there, install
[ ! -d "$PM_HOME_PATH" ] && pm_install


# user can now access polymerge via functions
pm_get_active_lab
pm_get_active_polymer

# check for polymerge updates