#!/bin/sh

## Copyright (C) 2016 Ryan S. Northrup <northrup@yellowapple.us>
## Modified by Rafael Tavares <mdrafaeltavares@gmail.com> for gfs (2021)

## Permission is hereby granted, free of charge, to any person
## obtaining a copy of this software and associated documentation
## files (the "Software"), to deal in the Software without
## restriction, including without limitation the rights to use, copy,
## modify, merge, publish, distribute, sublicense, and/or sell copies
## of the Software, and to permit persons to whom the Software is
## furnished to do so, subject to the following conditions:

## The above copyright notice and this permission notice shall be
## included in all copies or substantial portions of the Software.

## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
## EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
## MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
## NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
## BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
## ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
## CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
## SOFTWARE.

## Based on erlang-otp.SlackBuild, which was written by halflife
## (vzdorovenco@yahoo.com).  Please **DO NOT** email halflife about
## this SlackBuild.

PRGNAM=$(basename $0 | cut -f1 -d.)
VERSION=${VERSION:-$(find . -maxdepth 1 -name "$PRGNAM-*.tar.?z*" | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-1}
TAG=${TAG:-_gfs}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/gfs}
PKG=$TMP/pkg-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}
JOBS=${JOBS:-" -j$(expr $(getconf _NPROCESSORS_ONLN) \* 2 ) "}

if [ "$ARCH" = "x86_64" ]; then
    LIBDIRSUFFIX="64"
else
    LIBDIRSUFFIX=""
fi

set -e

UMASKBKP=$(umask)
umask 0022

DEPCHK=""
OPTDEP=""

if [ -z $VERSION ]
 then
 VERSION=1.11.3
fi

SRC_NAME_VERSION=elixir-${VERSION}

MDSCHK=0319a8428c647cdbc373312a5c25fb5e
DWNLCMD=${DWNLCMD:-"wget -c --no-check-certificate"}
SRCDOWN=${SRCDOWN:-"https://github.com/elixir-lang/elixir/archive/v$VERSION/elixir-$VERSION.tar.gz"}

if [ -z $(find . -maxdepth 1 -name "$PRGNAM-$VERSION.tar.?z*") ]
then
 $DWNLCMD $SRCDOWN
else
 if md5sum -c <<<"$MDSCHK $(echo $PRGNAM-$VERSION.tar.?z*)";
  then
   continue
  else
   rm -rf $PRGNAM-$VERSION.tar.?z*
   $DWNLCMD $SRCDOWN
 fi
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRC_NAME_VERSION
tar xvf $CWD/$SRC_NAME_VERSION.tar.gz
cd $SRC_NAME_VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

make $JOBS || make
make DESTDIR=$PKG PREFIX=/usr LIBDIR=lib${LIBDIRSUFFIX} install

cd $PKG/usr/bin
  for file in elixir elixirc iex mix ; do
    rm -f $file
    ln -s ../lib${LIBDIRSUFFIX}/elixir/bin/$file .
  done
cd -

chown -R root:root $PKG/usr/lib${LIBDIRSUFFIX}/elixir
chmod -R u+w,go+r-w,a-s $PKG/usr/lib${LIBDIRSUFFIX}/elixir

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
for file in CHANGELOG.md CODE_OF_CONDUCT.md LICENSE \
  NOTICE README.md RELEASE.md SECURITY.md VERSION ; do
  cp $file $PKG/usr/doc/$PRGNAM-$VERSION
done
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mv $PKG/usr/share/man $PKG/usr/man
rmdir $PKG/usr/share
find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

mkdir -p $PKG/install
#      |-----handy-ruler------------------------------------------------------|
cat <<EOT >$PKG/install/slack-desc
$PRGNAM:
$PRGNAM: elixir (programming language)
$PRGNAM:
$PRGNAM: Elixir is a dynamic, functional language designed for building
$PRGNAM: scalable and maintainable applications.
$PRGNAM:
$PRGNAM: Elixir leverages the Erlang VM, known for running low-latency,
$PRGNAM: distributed and fault-tolerant systems, while also being successfully
$PRGNAM: used in web development and the embedded software domain.
$PRGNAM:
$PRGNAM: https://elixir-lang.org/
EOT

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}

umask ${UMASKBKP}