Script to compile harfbuzz + freetype static library for emscripten

build_harfbuzz_freetype2_emscripten.sh

#!/bin/bash

FREETYPE_VERSION="2.10.0"
HARFBUZZ_VERSION="2.4.0"

ROOT_DIR=$(pwd)
WORKER=$(getconf _NPROCESSORS_ONLN)
BUILD_DIR_FREETYPE2="build/emscripten/freetype2"
BUILD_DIR_HARFBUZZ="build/emscripten/harfbuzz"

error() {
    echo -e "$@" 1>&2
}

fail() {
    error "$@"
    exit 1
}

function build_freetype() {
    HAS_HARFBUZZ=$1

    cd "$ROOT_DIR" || exit 1

    if $HAS_HARFBUZZ; then
        echo " "
        BUILD_DIR_FREETYPE2="build/emscripten/freetype2_harfbuzz"
    fi

    LOG_FILE="$ROOT_DIR/$BUILD_DIR_FREETYPE2/build.log"

    if [ -d "$BUILD_DIR_FREETYPE2/source" ]; then
        rm -rf "$BUILD_DIR_FREETYPE2/source"
    fi

    if [ -f "$LOG_FILE" ]; then
        rm "$LOG_FILE"
        touch "$LOG_FILE"
    fi

    mkdir -p "$BUILD_DIR_FREETYPE2/download"
    mkdir -p "$BUILD_DIR_FREETYPE2/source"

    if [ ! -f "$BUILD_DIR_FREETYPE2/download/freetype-$FREETYPE_VERSION.tar.gz" ]; then
        echo "Downloading: freetype"
        curl -Lo "$BUILD_DIR_FREETYPE2/download/freetype-$FREETYPE_VERSION.tar.gz" "http://download.savannah.gnu.org/releases/freetype/freetype-$FREETYPE_VERSION.tar.gz" >> "$LOG_FILE" 2>&1 || fail "Error download freetype"
        echo "Downloaded: freetype"
    fi

    echo "Uncompressing: freetype"
    tar zxf "$BUILD_DIR_FREETYPE2/download/freetype-$FREETYPE_VERSION.tar.gz" -C "$BUILD_DIR_FREETYPE2/source" >> "$LOG_FILE" 2>&1 || fail "Error uncompress freetype"
    echo "Uncompressed: freetype"

    echo " "
    cd "$ROOT_DIR" || exit 1

    if [ -d "$BUILD_DIR_FREETYPE2/output" ]; then
        rm -rf "$BUILD_DIR_FREETYPE2/output"
    fi
    mkdir -p "$BUILD_DIR_FREETYPE2/output"

    cp -R "$BUILD_DIR_FREETYPE2/source/freetype-$FREETYPE_VERSION/" "$BUILD_DIR_FREETYPE2/output"

    if [ -d "$BUILD_DIR_FREETYPE2/install" ]; then
        rm -rf "$BUILD_DIR_FREETYPE2/install"
    fi
    mkdir -p "$BUILD_DIR_FREETYPE2/install"

    export CC="emcc"
    export CXX="em++"
    export AR="emar"
    export LDFLAGS="-Os"
    export CFLAGS="-m32 -Os"
    export CPPFLAGS="$CFLAGS"
    export CXXFLAGS="${CFLAGS} -fno-exceptions -fno-rtti"

    if $HAS_HARFBUZZ; then
        export HARFBUZZ_CFLAGS="-I$ROOT_DIR/$BUILD_DIR_HARFBUZZ/install/include/harfbuzz"
        export HARFBUZZ_LIBS="-L$ROOT_DIR/$BUILD_DIR_HARFBUZZ/install/lib -lharfbuzz"
    fi

    cd "$ROOT_DIR/$BUILD_DIR_FREETYPE2/output" || exit 1

    echo "Configuring: freetype emscripten"
    FREETYPE_CONFIGURE_CMD="emconfigure ./configure --host=\"i386-apple-darwin\" \\
        --prefix=$ROOT_DIR/$BUILD_DIR_FREETYPE2/install \\
        --enable-static \\
        --disable-shared \\
        --without-zlib \\
        --without-png \\
        --without-bzip2 \\"

    if $HAS_HARFBUZZ; then
        FREETYPE_CONFIGURE_CMD="$FREETYPE_CONFIGURE_CMD--with-harfbuzz=yes"
    else
        FREETYPE_CONFIGURE_CMD="$FREETYPE_CONFIGURE_CMD--without-harfbuzz"
    fi

    eval "$FREETYPE_CONFIGURE_CMD" >> "$LOG_FILE" 2>&1 || fail "Error configuration freetype emscripten"

    # Patch from http://zarprime.blogspot.com/2006/08/how-to-cross-compile-freetype.html
    cd src/tools || exit 1
    clang apinames.c -o apinames
    cp apinames ../../objs
    cd "$ROOT_DIR/$BUILD_DIR_FREETYPE2/output" || exit 1

    echo "Configured: freetype emscripten"
    echo "Compiling: freetype emscripten"
    emmake make -j "$WORKER" >> "$LOG_FILE" 2>&1 || fail "Error compilation freetype emscripten"
    echo "Compiled: freetype emscripten"

    echo "Installing: freetype emscripten"
    emmake make install >> "$LOG_FILE" 2>&1 || fail echo "Error installation freetype emscripten"
    echo "Installed: freetype emscripten"
}

build_freetype false

cd "$ROOT_DIR" || exit 1

LOG_FILE="$ROOT_DIR/$BUILD_DIR_HARFBUZZ/build.log"

if [ -d "$BUILD_DIR_HARFBUZZ/source" ]; then
    rm -rf "$BUILD_DIR_HARFBUZZ/source"
fi

if [ -f "$LOG_FILE" ]; then
    rm "$LOG_FILE"
    touch "$LOG_FILE"
fi

mkdir -p "$BUILD_DIR_HARFBUZZ/download"
mkdir -p "$BUILD_DIR_HARFBUZZ/source"

echo " "

if [ ! -f "$BUILD_DIR_HARFBUZZ/download/harfbuzz-$HARFBUZZ_VERSION.tar.bz2" ]; then
    echo "Downloading: harfbuzz"
    curl -Lo "$BUILD_DIR_HARFBUZZ/download/harfbuzz-$HARFBUZZ_VERSION.tar.bz2" "https://github.com/harfbuzz/harfbuzz/releases/download/$HARFBUZZ_VERSION/harfbuzz-$HARFBUZZ_VERSION.tar.bz2" >> "$LOG_FILE" 2>&1 || fail "Error download harfbuzz"
    echo "Downloaded: harfbuzz"
fi

echo "Uncompressing: harfbuzz"
tar jxf "$BUILD_DIR_HARFBUZZ/download/harfbuzz-$HARFBUZZ_VERSION.tar.bz2" -C "$BUILD_DIR_HARFBUZZ/source" >> "$LOG_FILE" 2>&1 || fail "Error uncompress harfbuzz"
echo "Uncompressed: harfbuzz"

echo " "
cd "$ROOT_DIR" || exit 1

if [ -d "$BUILD_DIR_HARFBUZZ/output" ]; then
    rm -rf "$BUILD_DIR_HARFBUZZ/output"
fi
mkdir -p "$BUILD_DIR_HARFBUZZ/output"
cp -R "$BUILD_DIR_HARFBUZZ/source/harfbuzz-$HARFBUZZ_VERSION/" "$BUILD_DIR_HARFBUZZ/output" || exit 1

if [ -d "$BUILD_DIR_HARFBUZZ/install" ]; then
    rm -rf "$BUILD_DIR_HARFBUZZ/install"
fi
mkdir -p "$BUILD_DIR_HARFBUZZ/install"

export FREETYPE_CFLAGS="-I$ROOT_DIR/$BUILD_DIR_FREETYPE2/install/include/freetype2"
export FREETYPE_LIBS="-L$ROOT_DIR/$BUILD_DIR_FREETYPE2/install/lib -lfreetype"

cd "$ROOT_DIR/$BUILD_DIR_HARFBUZZ/output" || exit 1
if [ -d "$BUILD_DIR_HARFBUZZ/download" ]; then
    rm -rf "$BUILD_DIR_HARFBUZZ/download"
fi

export CC="emcc"
export CXX="em++"
export AR="emar"
export LDFLAGS="-Os"
export CFLAGS="-m32 -Os"
export CPPFLAGS="$CFLAGS"
export CXXFLAGS="${CFLAGS} -fno-exceptions -fno-rtti"

echo "Configuring: harfbuzz emscripten"
emconfigure ./configure --host="i386-apple-darwin" \
    --prefix="$ROOT_DIR/$BUILD_DIR_HARFBUZZ/install" \
    --enable-static \
    --disable-shared \
    --disable-dependency-tracking \
    --disable-gtk-doc-html \
    --enable-introspection \
    --without-fontconfig \
    --without-glib \
    --without-gobject \
    --without-icu \
    --without-cairo \
    --with-ucdn=yes \
    --with-freetype=yes >> "$LOG_FILE" 2>&1 || fail "Error configuration harfbuzz emscripten"
echo "Configured: harfbuzz emscripten"

echo "Compiling: harfbuzz emscripten"
emmake make -j "$WORKER" >> "$LOG_FILE" 2>&1 || fail "Error compilation harfbuzz emscripten"
echo "Compiled: harfbuzz emscripten"

echo "Installing: harfbuzz emscripten"
emmake make install >> "$LOG_FILE" 2>&1 || fail "Error installation harfbuzz emscripten"
echo "Installed: harfbuzz emscripten"

build_freetype true