#! /bin/bash

# mozjs78 (JS 78)
# Source: https://ftp.mozilla.org/pub/firefox/releases/78.6.1esr/source/firefox-78.6.1esr.source.tar.xz
#
# $BUILD = Directory to temporarily install
# $PKGS  = Directory to store built packages
#
# DEPS
# Required:     Autoconf-2.13, ICU, rustc, Which, nspr
# Recommended:  NONE
# Optional:     NONE

# NOTE: Rust will no longer build on musl-1.2.x, which means mozjs will not build.
# Workaround is by installing and patching Alpine Linux's build of mozjs.
# Alpine's mozjs 78.14.0 will require libffi-3.3 and ICU 67(libicudata,libicui18n,libicuuc)

# If you compiling this package in chroot then ensure that /dev/shm is mounted.
# As root:
mountpoint -q /dev/shm || mount -t tmpfs devshm /dev/shm

patch -Np1 -i ../patches/mozjs78-alpine/0001-silence-sandbox-violations.patch
patch -Np1 -i ../patches/mozjs78-alpine/disable-jslint.patch
patch -Np1 -i ../patches/mozjs78-alpine/fd6847c9416f9eebde636e21d794d25d1be8791d.patch
patch -Np1 -i ../patches/mozjs78-alpine/fix-musl-build.patch
patch -Np1 -i ../patches/mozjs78-alpine/fix-rust-target.patch

# If using python 3.10.x, apply these patches:
patch -Np1 -i ../patches/mozjs78-alpine/fix-python3.10-compilation.patch 
patch -Np1 -i ../patches/mozjs78-mlfs/fix-typo-in-python-script.py

mkdir -v obj &&
cd       obj &&
export LDFLAGS="$LDFLAGS -Wl,-z,stack-size=1048576" &&
touch configure &&
case $(uname -m) in
   armv*) ARM_ARCH=$(echo ${$(uname -m)#*armv} | sed "s|-.*||")
          sed -i "s|ARM_ARCH=.*|ARM_ARCH=$ARM_ARCH|" "$builddir"/build/autoconf/arch.m4
          ;;
esac &&

case $(uname -m) in
    i686)    export RUST_TARGET="i686-unknown-linux-musl" ;;
    x86_64)  export RUST_TARGET="x86_64-unknown-linux-musl" ;;
    aarch64) export RUST_TARGET="aarch64-unknown-linux-musl" ;;
    armv7*)  export RUST_TARGET="armv7l-unknown-linux-musl" ;;
    armv6*)  export RUST_TARGET="armv6l-unknown-linux-musl" ;;
esac &&

CC=gcc CXX=g++ \
SHELL=/bin/ash PYTHON=/usr/bin/python3 \
../js/src/configure --prefix=/usr \
		--with-intl-api \
		--with-system-icu \
		--with-system-nspr \
		--with-system-zlib \
		--enable-ctypes \
		--enable-hardening \
		--enable-optimize="$CFLAGS -O2" \
		--enable-readline \
		--enable-release \
		--enable-shared-js \
		--enable-system-ffi \
		--enable-tests \
		--disable-debug \
		--disable-debug-symbols \
		--disable-jemalloc \
		--disable-strip  &&

read -p "Compile?" && make -j2 &&

sudo -S make DESTDIR=$BUILD install &&
sudo -S rm -vf ${BUILD}/usr/lib/*.ajs &&

cd $BUILD && sudo -S mkdir -v ${BUILD}/install &&
cat > /tmp/slack-desc << "EOF"
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':' except on otherwise blank lines.

     |-----handy-ruler------------------------------------------------------|
mozjs: mozjs (Mozilla's JavaScript engine)
mozjs:
mozjs: SpiderMonkey is Mozilla's JavaScript engine written in C and C++. It
mozjs: is used in various Mozilla products, including Firefox, and is
mozjs: available under the MPL2.
mozjs:
mozjs:
mozjs:
mozjs:
mozjs:
mozjs:
EOF
sudo -S mv -v /tmp/slack-desc install/ &&
sudo -S makepkg -l y -c n $PKGS/mozjs-78.6.1-$(uname -m)-mlfs.txz &&
sudo -S rm -rf ${BUILD}/*