build

#!/bin/bash
#
# Copyright 2015 Google Inc. All rights reserved.
#
# 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.

source util.sh


function setup() {
    # exit early if any sub-commands fails
    set -e
    if [[ -d env ]]; then
        source env/bin/activate
    else
        if [[ -z ${PYTHON} ]]; then
            if [[ -x "$(command -v python3)" ]] \
                    && [[ $(python3 -c 'import sys; print(sys.version_info.minor)') -ge 6 ]]; then
                PYTHON=python3
            elif [[ -x "$(command -v python3.7)" ]]; then
                PYTHON=python3.7
            elif [[ -x "$(command -v python3.6)" ]]; then
                PYTHON=python3.6
            else
                echo >&2 "Error: python3.6 or greater is required"
                exit 1
            fi
        fi
        if [[ ! $(${PYTHON} -m venv --help 2>/dev/null) ]]; then
            echo >&2 "error: venv module is not installed."
            echo >&2 "This is normally built-in, but some Linux distros maintain a separate package."
            echo >&2 "E.g. for Debian, 'sudo apt install python3.7-venv' or similar."
            exit 1
        fi
        ${PYTHON} -m venv env
        source env/bin/activate
        pip install --upgrade pip setuptools wheel
    fi
    # ensure fontmake submodule is up-to-date
    git submodule update --init
    pip install -r scripts/fontmake/requirements.txt
    pip install -e scripts/fontmake
    deactivate
}

function build_all() {
    for target in src/*.glyphs src/*/*.plist src/*/*.designspace src/*/*.ufo; do
        echo "==== building ${target} ===="
        if [[ "$1" == 'variable' ]]; then
            build_variable "${target}" "$2"
        else
            build "${target}" "$1"
        fi
        echo
    done
}

function build() {
    source env/bin/activate
    case "$1" in
        *.plist)
            build_plist "$1" 'otf' 'ttf'
            ;;
        *.glyphs)
            build_glyphs "$1" 'otf' 'ttf'
            ;;
        *.designspace)
            echo "$1"
            build_designspace "$1" 'otf' 'ttf'
            ;;
        *.ufo)
            build_ufo "$1"
            ;;
        *)
            echo "unrecognized source type: \"$1\""
            exit 1
            ;;
    esac
    if [[ "$?" -ne 0 && "$2" != 'force' ]]; then
        exit 1
    fi
    deactivate
}

function build_variable() {
    source env/bin/activate
    case "$1" in
        *.plist)
            build_plist_variable "$1"
            ;;
        *.glyphs)
            build_glyphs_variable "$1"
            ;;
        *.designspace)
            build_designspace_variable "$1"
            ;;
        *)
            echo "unrecognized source type for variable font: \"$1\""
            exit 1
            ;;
    esac
    if [[ "$?" -ne 0 && "$2" != 'force' ]]; then
        exit 1
    fi
    deactivate
}

function main() {
    case "$1" in
        setup) setup ;;
        all) build_all "$2" "$3" ;;
        variable) build_variable "$2" ;;
        *) build "$1" ;;
    esac
}

main "$@"