#! /bin/bash

# Git 
# Source: https://www.kernel.org/pub/software/scm/git/git-2.50.1.tar.xz
#
# $BUILD = Directory to temporarily install
# $PKGS  = Directory to store built packages
#
# DEPS
# Required:     NONE
# Recommended:  curl
# Optional:     pcre2 or pcre, subversion, tk, valgrind

# If optimizing, use these flags with GCC
export  CFLAGS="-march=native -pipe "
export CFLAGS+="-O3 -Ofast -falign-functions=32 -ffat-lto-objects -flto=auto "
export CFLAGS+="-fno-semantic-interposition -mprefer-vector-width=256 "
export LDFLAGS="-flto=auto -Wl,-O2 -Wl,--as-needed "

# NOTE: Git CAN compile against libreSSL

export PVER="2.50.1"

# Ascertain installed perl version
export PV=$(perl --version | grep version | cut -d 'v' -f 4 | cut -c 1-4)

./configure --prefix=/usr \
            --with-gitconfig=/etc/gitconfig \
            --with-libpcre2 \
	    --with-python=python3 

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

read -p "Press Enter to install" &&
sudo -S make DESTDIR=$BUILD perllibdir=/usr/lib/perl5/$PV/site_perl install &&
unset PV

cd $BUILD && sudo mkdir -v 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 ':'.

   |-----handy-ruler------------------------------------------------------|
git: git (the stupid content tracker)
git:
git: Git is a fast, scalable, distributed revision control system with an
git: unusually rich command set that provides both high-level operations
git: and full access to internals.
git:
git: "git" can mean anything, depending on your mood.
git:
git: Git was originally written by Linus Torvalds and is currently
git: maintained by Junio C. Hamano.
git:
EOF
sudo mv /tmp/slack-desc install/ &&
sudo makepkg -l y -c n $PKGS/git-$PVER-$PSUFFIX &&
sudo rm -rf $BUILD/*