#!/bin/bash

# variables
BUILD=${BUILD:-1}

TAG=gwh
TMP=/tmp/$TAG
CWD=$(pwd)

PRGNAM=$(basename $CWD)
PKG=$TMP/pkg-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

ARCH=${ARCH:-$(uname -m)}

REPOSITORY=${REPOSITORY:-/home/installs/SlackBuilds/repositories/$PRGNAM}
PREFIX=${PREFIX:-/usr}

# nettoyage préalable
rm -fr $PKG $TMP/$PRGNAM

mkdir -p $PKG

# mise en place
cd $TMP
[ ! -e $REPOSITORY ] && git clone https://github.com/rust-lang/rustup.git $REPOSITORY
( cd $REPOSITORY && git pull )
VERSION="git_$( cd $REPOSITORY && git log -1 --format=%h_%ad --date=format:%Y.%m.%d )"

cp -R $REPOSITORY $TMP/
cd $TMP/$PRGNAM

cargo build --release --features no-self-update

mkdir -p $PKG$PREFIX/bin
cp target/release/rustup-init $PKG$PREFIX/bin/rustup
chmod 755 $PKG$PREFIX/bin/rustup

mkdir -p $PKG/usr/share/bash-completion/completions
$PKG/usr/bin/rustup completions bash > $PKG/usr/share/bash-completion/completions/rustup

mkdir -p $PKG/usr/share/zsh/site-functions
$PKG/usr/bin/rustup completions zsh > $PKG/usr/share/zsh/site-functions/_rustup
chmod 0644 $PKG/usr/share/zsh/site-functions/_rustup $PKG/usr/share/bash-completion/completions/rustup

# move doc/ to the appropriate location
mkdir -p $PKG$PREFIX/doc/$PRGNAM
cp LICENCE* *.md $PKG$PREFIX/doc/$PRGNAM

# correction
cd $PKG
chown -R root:root *

find $PKG$PREFIX/man -type f -not -name \*.gz -exec gzip -9 {} \;

# embaumement
mkdir -p $PKG/install

cat <<EOF > $PKG/install/slack-desc
# 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------------------------------------------------------|
$PRGNAM: $PRGNAM (the Rust toolchain installer)
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: https://rustup.rs
EOF

# empaquetage
rm -f $PKG/{,usr/}lib$(uname -m | grep -o 64)/*.la
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.txz