#!/bin/sh
# $Id: nodejs.SlackBuild,v 1.5 2018/10/25 08:52:31 root Exp $
# Copyright 2017, 2018  Eric Hameleers, Eindhoven, NL
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
#   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
#   IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
#   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
#   OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#   SUCH DAMAGE.
# -----------------------------------------------------------------------------
# This script takes inspiration from the 'nodejs' script at SBo.
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:          Eric Hameleers <alien@slackware.com>
# For:         nodejs
# Descr:       JavaScript runtime built on Chrome V8 JS engine
# URL:         https://nodejs.org/
# Build needs: 
# Needs:       
# Changelog:   
# 6.10.3-1:    05/May/2017 by Eric Hameleers <alien@slackware.com>
#              * Initial build.
# 6.11.2-1:    07/aug/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 6.12.2-1:    20/dec/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 6.14.0-1:    03/apr/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 8.12.0-1:    24/oct/2018 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 
# Run 'sh nodejs.SlackBuild' to build a Slackware package.
# The package (.t?z) and .txt file as well as build logs are created in /tmp .
# Install the package using 'installpkg' or 'upgradepkg --install-new'.
#
# -----------------------------------------------------------------------------

PRGNAM=nodejs
SRCNAM=node
VERSION=${VERSION:-8.12.0}
BUILD=${BUILD:-1}
NUMJOBS=${NUMJOBS:-" -j$(nproc) "}
TAG=${TAG:-alien}

DOCS="AUTHORS LICENSE *.md"

# Where do we look for sources?
SRCDIR=$(cd $(dirname $0); pwd)

# Place to build (TMP) package (PKG) and output (OUTPUT) the program:
TMP=${TMP:-/tmp/build}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

SOURCE="$SRCDIR/${SRCNAM}-${VERSION}.tar.xz"
SRCURL="https://nodejs.org/dist/v${VERSION}/${SRCNAM}-v${VERSION}.tar.xz"

##
## --- with a little luck, you won't have to edit below this point --- ##
##

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) readelf /usr/bin/file -A | egrep -q "Tag_CPU.*[4,5]" && ARCH=arm || ARCH=armv7hl ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi

# Set CFLAGS/CXXFLAGS and LIBDIRSUFFIX:
case "$ARCH" in
  i?86)      SLKCFLAGS="-O2 -march=${ARCH} -mtune=i686"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  x86_64)    SLKCFLAGS="-O2 -fPIC"
             SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
             ;;
  armv7hl)   SLKCFLAGS="-O2 -march=armv7-a -mfpu=vfpv3-d16"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  arm)       SLKCFLAGS="-O2 -march=armv6 -mfpu=vfp -mfloat-abi=hard"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  *)         SLKCFLAGS=${SLKCFLAGS:-"-O2"}
             SLKLDFLAGS=${SLKLDFLAGS:-""}; LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
             ;;
esac

case "$ARCH" in
    arm*)    TARGET=$ARCH-slackware-linux-gnueabi ;;
    *)       TARGET=$ARCH-slackware-linux ;;
esac

# Exit the script on errors:
set -e
trap 'echo "$0 FAILED at line ${LINENO}" | tee $OUTPUT/error-${PRGNAM}.log' ERR
# Catch unitialized variables:
set -u
P1=${1:-1}

# Save old umask and set to 0022:
_UMASK_=$(umask)
umask 0022

# Create working directories:
mkdir -p $OUTPUT          # place for the package to be saved
mkdir -p $TMP/tmp-$PRGNAM # location to build the source
mkdir -p $PKG             # place for the package to be built
rm -rf $PKG/*             # always erase old package's contents
rm -rf $TMP/tmp-$PRGNAM/* # remove the remnants of previous build
rm -rf $OUTPUT/{checkout,configure,make,install,error,makepkg,patch}-$PRGNAM.log
                          # remove old log files

# Source file availability:
if ! [ -f ${SOURCE} ]; then
  echo "Source '$(basename ${SOURCE})' not available yet..."
  # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
  [ -w "$SRCDIR" ] || SOURCE="$OUTPUT/$(basename $SOURCE)"
  if [ -f ${SOURCE} ]; then echo "Ah, found it!"; continue; fi
  if ! [ "x${SRCURL}" == "x" ]; then
    echo "Will download file to $(dirname $SOURCE)"
    wget --no-check-certificate -nv -T 20 -O "${SOURCE}" "${SRCURL}" || true
    if [ $? -ne 0 -o ! -s "${SOURCE}" ]; then
      echo "Downloading '$(basename ${SOURCE})' failed... aborting the build."
      mv -f "${SOURCE}" "${SOURCE}".FAIL
      exit 1
    fi
  else
    echo "File '$(basename ${SOURCE})' not available... aborting the build."
    exit 1
  fi
fi

if [ "$P1" == "--download" ]; then
  echo "Download complete."
  exit 0
fi

# --- PACKAGE BUILDING ---

echo "++"
echo "|| $PRGNAM-$VERSION"
echo "++"

cd $TMP/tmp-$PRGNAM
echo "Extracting the source archive(s) for $PRGNAM..."
tar -xvf ${SOURCE}
cd ${SRCNAM}-v${VERSION}
chown -R root:root .
chmod -R u+w,go+r-w,a+rX-st .

## Fix man and doc paths:
sed -i tools/install.py -e 's|share/man|man|' -e 's|share/doc/node|share/node/doc|'
sed -i deps/npm/lib/{,un}build.js -e "/var manRoot/ s/'share',//"
sed -i deps/npm/test/tap/install-man.js -e "/fs.existsSync/ s/'share',//"

# Fix libdir for 64-bit.  Even Gentoo thanks Ryan McQuen for
# https://github.com/iojs/io.js/issues/504
sed -i -e "s|lib/|lib${LIBDIRSUFFIX}/|g" tools/install.py
sed -i -e "s/'lib'/'lib${LIBDIRSUFFIX}'/" lib/module.js
sed -i -e "s|\"lib\"|\"lib${LIBDIRSUFFIX}\"|" \
  -e "s/'lib'/'lib${LIBDIRSUFFIX}'/" deps/npm/lib/npm.js

# Force the use of Python 2:
find -type f -exec sed -i {} \
  -e 's_^#!/usr/bin/env python$_&2_' \
  -e 's_^\(#!/usr/bin/python2\).[45]$_\1_' \
  -e 's_^#!/usr/bin/python$_&2_' \
  -e 's_^\( *exec \+\)python\( \+.*\)$_\1python2\2_'\
  -e 's_^\(.*\)python\( \+-c \+.*\)$_\1python2\2_'\
  -e "s_'python'_'python2'_" \
  \;
find test/ -type f -exec sed -i {} -e 's_python _python2 _' \;

echo Building ...
export LDFLAGS="$SLKLDFLAGS"
export CXXFLAGS="$SLKCFLAGS"
export CFLAGS="$SLKCFLAGS"

PYTHON=python2 \
./configure \
  --prefix=/usr \
  --shared-openssl \
  --shared-zlib \
  2>&1 | tee $OUTPUT/configure-${PRGNAM}.log

make $NUMJOBS 2>&1 | tee $OUTPUT/make-${PRGNAM}.log
make DESTDIR=$PKG install 2>&1 | tee $OUTPUT/install-${PRGNAM}.log

# Define NODE_PATH supporting globally installed modules:
mkdir -p $PKG/etc/profile.d
cat <<EOF > $PKG/etc/profile.d/${SRCNAM}.sh
#!/bin/sh
export NODE_PATH=/usr/lib${LIBDIRSUFFIX}/node_modules
EOF
cat <<EOF > $PKG/etc/profile.d/${SRCNAM}.csh
#!/bin/csh
setenv NODE_PATH /usr/lib${LIBDIRSUFFIX}/node_modules
EOF
chmod 0755 $PKG/etc/profile.d/*

# Add documentation:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION || true
cat $SRCDIR/$(basename $0) > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
chown -R root:root $PKG/usr/doc/$PRGNAM-$VERSION
find $PKG/usr/doc -type f -exec chmod 644 {} \;

# Compress the man page(s):
if [ -d $PKG/usr/man ]; then
  find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \;
  for i in $(find $PKG/usr/man -type l -name "*.?") ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
fi

# Strip binaries (if any):
find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

# Add a package description:
mkdir -p $PKG/install
cat $SRCDIR/slack-desc > $PKG/install/slack-desc

# Build the package:
cd $PKG
makepkg --linkadd y --chown n $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-tgz} 2>&1 | tee $OUTPUT/makepkg-${PRGNAM}.log
cd $OUTPUT
md5sum ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-tgz} > ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-tgz}.md5
cd -
cat $PKG/install/slack-desc | grep "^${PRGNAM}" > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txt

# Restore the original umask:
umask ${_UMASK_}