#!/bin/bash

# Copyright 2008, 2009, 2010, 2011, 2013, 2014, 2016, 2017, 2018, 2020, 2021  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 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 AUTHOR 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.

cd $(dirname $0) ; CWD=$(pwd)

PKGNAM=curl
VERSION=${VERSION:-$(echo curl-*.tar.xz | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-1}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

TMP=${TMP:-/tmp}
PKG=$TMP/package-curl

# Set this variable to "--without-ssl" to build a no-SSL version:
SSLOPT=${SSLOPT:-"--with-openssl"}

if [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=pentium4 -mtune=generic"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -march=x86-64 -mtune=generic -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "riscv64" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX="64"
  SLKLDFLAGS="-latomic"
else
  SLKCFLAGS=${SLKCFLAGS:-"-O2"}
  LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
fi

rm -rf $PKG
mkdir -p $PKG
cd $TMP
rm -rf curl-$VERSION
tar xvf $CWD/curl-$VERSION.tar.xz || exit 1
cd curl-$VERSION || exit 1

chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \+

# Adding missing #include <sched.h>
zcat $CWD/sched_yield-missing_include.diff.gz | patch -p1 --verbose || exit 1

CFLAGS="$SLKCFLAGS" \
LDFLAGS="$SLKLDFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --with-libssh2 \
  --with-gssapi \
  --enable-ares \
  --enable-static=no \
  --without-ca-bundle \
  --with-ca-path=/etc/ssl/certs \
  --with-nghttp2=/usr \
  --with-nghttp3=/usr \
  --with-openssl-quic \
  $SSLOPT || exit 1

make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

# We have always installed the man3 documentation, so we'll keep doing it
# even though these are no longer installed by default. No || exit 1, if
# it works, it works, and if it doesn't, we tried.
( cd docs/libcurl
  make install-man3 DESTDIR=$PKG
  cd opts
  make install-man3 DESTDIR=$PKG
)

# We don't ship the related perl script (yet):
rm -f $PKG/usr/man/man1/mk-ca-bundle.1

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

strip -g $PKG/usr/lib${LIBDIRSUFFIX}/libcurl.a

mkdir -p $PKG/usr/doc/curl-$VERSION
cp -a \
  COPYING* README* UPGRADE \
  $PKG/usr/doc/curl-$VERSION
( cd docs
  cp -a \
    BUGS CONTRIBUTE FAQ FEATURES INSTALL INTERNALS MANUAL README* RESOURCES THANKS TODO examples \
    $PKG/usr/doc/curl-$VERSION )
# Get rid of .deps cruft:
rm -rf $PKG/usr/doc/curl-$VERSION/examples/.deps

# If there's a CHANGES file, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r CHANGES ]; then
  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
  cat CHANGES | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r CHANGES $DOCSDIR/ChangeLog
fi

# Compress and if needed symlink the man pages:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/curl-$VERSION-$ARCH-$BUILD.txz