#! /bin/bash

# argon2
# Source: https://github.com/P-H-C/phc-winner-argon2/archive/20190702.tar.gz
#
# $BUILD = Directory to temporarily install
# $PKGS  = Directory to store built packages
#
# DEPS
# Required:     NONE
# Recommended:  NONE
# Optional:     NONE

# If coptimizing with GCC:
export  CFLAGS="-march=native -pipe "
export CFLAGS+="-O3 -ffat-lto-objects -flto=4 "
export LDFLAGS="-flto=4 -Wl,-O2 -Wl,--as-needed "

# use explizit_bzero on musl
patch -Np1 -i ../patches/argon2-chimera/explicit-bzero.patch

# Fix libdir for pkgconfig
patch -Np1 -i ../patches/argon2-chimera/libdir.patch 

export CFLAGS="$CFLAGS -DHAVE_EXPLICIT_BZERO=1" &&

read -p "Compile?" && make OPTTARGET=none -j2 &&

#sed -i 's#libdir=${prefix}/lib#libdir=/lib#' libargon2.pc &&
sudo -S make OPTTARGET=none DESTDIR=$BUILD LIBRARY_REL=lib install &&
unset CFLAGS &&

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------------------------------------------------------|
argon2: argon2 (Argon2 password-hashing function)
argon2:
argon2: This is the reference C implementation of Argon2, the password-hashing
argon2: function that won the Password Hashing Competition
argon2: (see https://password-hashing.net).
argon2:
argon2: Argon2 is a password-hashing function that summarizes the state of the
argon2: art in the design of memory-hard functions and can be used for
argon2: credential storage, key derivation, or other applications.
argon2:
argon2: Homepage: https://github.com/P-H-C/phc-winner-argon2
EOF
sudo -S mv -v /tmp/slack-desc install/ &&
sudo -S makepkg -l y -c n $PKGS/argon2-2019.07.02-$PSUFFIX &&
sudo -S rm -rf ${BUILD}/*