#!/bin/sh

### determine the download URL from the package version
if [ -z "${PKGVER##*.*}" ]; then
   # eg: "1.7-dev4"
   SRC_GIT_COMMIT="v${PKGVER}"
   if [ -z "${PKGVER##*-dev*}" ]; then
     BRANCH=""
     if [ -z "${PKGVER##*-dev*-*}" ]; then
       # eg: "2.7-dev7-2e2b79d1"
       SRC_GIT_COMMIT="${PKGVER##*-}"
     fi
   else
     BRANCH="${PKGVER#[0-9].[0-9]}"
     BRANCH="${PKGVER%%$BRANCH}"
   fi
else
   # eg: "20150909-07101d5a"
   SRC_GIT_COMMIT="${PKGVER##*-}"
   BRANCH=""
fi

SRC_FETCH_METHOD="http"
SRC_FETCH_PATH="http://git.haproxy.org/?p=haproxy${BRANCH:+-$BRANCH}.git;a=snapshot;h=$SRC_GIT_COMMIT;sf=tgz"

# only 64-bit systems get many threads and jemalloc, and smaller ones also do
# not enable backtraces nor BUG_ON() since these significantly increase the
# executable's size, nor do they use global pools that eat memory. We also do
# not enable DEBUG_STRICT there.
case "$FLX_ARCH_SMALL" in
    armv8*|x86_64*)    SMALL="-DDEBUG_STRICT=1"
                       EXTRA=( )
                       OPT="-O2"
                       ;;
    *)                 SMALL="-DMAX_TGROUPS=1 -DMAX_THREADS=4 -DCONFIG_HAP_NO_GLOBAL_POOLS"
                       EXTRA=( "USE_BACKTRACE=" "USE_THREAD_DUMP=" LDFLAGS="-Wl,--gc-sections" )
                       OPT="-Os -fdata-sections"
                       FLX_USE_JEMALLOC=0 
                       ;;
esac

### build options
# This is the mainline version of haproxy with ssl, slz, pcre, jemalloc. It
# relies on FLX_USE_OPENSSL{,_STAT}, FLX_USE_PCRE{,_STAT}, FLX_USE_JEMALLOC{,_STAT},
# and FLX_USE_HAPROXY_STAT. Set values to 0 to disable, and 1 to enable. Default
# values are 0 for *_STAT and 1 for the libraries. Example :
#   FLX_USE_OPENSSL_STAT=1 FLX_USE_PCRE_STAT=1 FLX_USE_HAPROXY_STAT=1 FLXARCH=x86_64 pkg prepare
#   FLX_USE_OPENSSL_STAT=1 FLX_USE_PCRE_STAT=1 FLX_USE_HAPROXY_STAT=1 FLXARCH=x86_64 pkg compile

FLX_USE_HAPROXY_STAT=${FLX_USE_HAPROXY_STAT:-0}
FLX_USE_JEMALLOC=${FLX_USE_JEMALLOC:-1}
FLX_USE_JEMALLOC_STAT=${FLX_USE_JEMALLOC_STAT:-0}
FLX_USE_PCRE=${FLX_USE_PCRE:-1}
FLX_USE_PCRE_STAT=${FLX_USE_PCRE_STAT:-0}
FLX_USE_OPENSSL=${FLX_USE_OPENSSL:-1}
FLX_USE_OPENSSL_STAT=${FLX_USE_OPENSSL_STAT:-0}
FLX_USE_LUA=${FLX_USE_LUA:-1}
FLX_USE_HAPROXY_DEBUG=${FLX_USE_HAPROXY_DEBUG:+"-DDEBUG_DEV -DDEBUG_DONT_SHARE_POOLS -DDEBUG_MEMORY_POOLS"}

if [ "$FLX_USE_HAPROXY_STAT" != 0 ]; then
	STATIC_FLAG="-static"
else
	STATIC_FLAG=
fi

if [ "$FLX_USE_OPENSSL" != 0 -a "$FLX_USE_OPENSSL_STAT" = 0 -a "$FLX_USE_HAPROXY_STAT" = 0 ]; then
	DEP_OPENSSL=( "openssl-*:::*.h *.so *.so.*" )
	OPENSSL_FLAG=1
elif [ "$FLX_USE_OPENSSL" != 0 ]; then
	DEP_OPENSSL=( "openssl-*:::*.h *.a" )
	OPENSSL_FLAG=1
else
	DEP_OPENSSL=( )
	OPENSSL_FLAG=
fi

if [ "$FLX_USE_PCRE" != 0 -a "$FLX_USE_PRE_STAT" = 0 -a "$FLX_USE_HAPROXY_STAT" = 0 ]; then
	DEP_PCRE=( "pcre-*:::*.h *.so *.so.*" )
	PCRE_FLAG=1
elif [ "$FLX_USE_PCRE" != 0 ]; then
	DEP_PCRE=( "pcre-*:::*.h *.a" )
	PCRE_FLAG=1
else
	DEP_PCRE=( )
	PCRE_FLAG=
fi

if [ "$FLX_USE_JEMALLOC" != 0 -a "$FLX_USE_JEMALLOC_STAT" = 0 -a "$FLX_USE_HAPROXY_STAT" = 0 ]; then
	DEP_JEMALLOC=( "jemalloc-*:::*.h *.so *.so.*" )
	JEMALLOC_FLAG=-ljemalloc
elif [ "$FLX_USE_JEMALLOC" != 0 ]; then
	DEP_JEMALLOC=( "jemalloc-*:::*.h *.a" )
	JEMALLOC_FLAG=-ljemalloc
else
	DEP_JEMALLOC=( )
	JEMALLOC_FLAG=
fi

if [ "$FLX_USE_LUA" != 0 ]; then
	DEP_LUA=( "lua-*:::*.h *.a" )
	LUA_FLAG=1
else
	DEP_LUA=( )
	LUA_FLAG=
fi

MAKEDEPENDS=( "${DEP_PCRE[@]}" "${DEP_OPENSSL[@]}" "${DEP_JEMALLOC[@]}" "${DEP_LUA[@]}" )


### patches
# Patches below 1000 are bugfixes and initial backports.
# Patches above 1000 are package-specific and late backports (eg: dlmalloc below).
PATCH_LIST=""

# This pkg is built with smaller options allowing it to support a higher number
# of simultaneous connections, typically 5000 with 256 MB memory including the
# sockets and the system, or 40000 with 1 GB RAM.

FILE_LIST=
HAPROXY_VERSION="${PKGVER}"
HAPROXY_SUBVERS="-${DISTVER}_${VERSFX}"
HAPROXY_DATE="$(date +%Y/%m/%d)"

function do_compile_only {
    $FLXPMAKE CC="$CC" CPU_CFLAGS="$OPT" EXTRA= \
      LDFLAGS="\$(ARCH_FLAGS) -g ${STATIC_FLAG}" \
      TARGET=linux-glibc \
      ADDLIB="${JEMALLOC_FLAG}" \
      USE_PCRE="${PCRE_FLAG}" PCREDIR=$FLXROOTDIR/usr \
      DEBUG="$FLX_USE_HAPROXY_DEBUG" \
      SMALL_OPTS="-DDEFAULT_SSL_MAX_RECORD=2859 $SMALL" \
      USE_OPENSSL="${OPENSSL_FLAG}" \
      USE_LUA="${LUA_FLAG}" \
      USE_SLZ=1 \
      "${EXTRA[@]}" \
      haproxy admin/halog/halog
}

function do_prepack {
    # halog
    mkdir -p $ROOTDIR/usr/bin
    cp admin/halog/halog $ROOTDIR/usr/bin/

    mkdir -p $ROOTDIR/sbin/init.d
    cp $PKGDIR/add-ons/init.haproxy $ROOTDIR/sbin/init.d/haproxy
    chmod 755 $ROOTDIR/sbin/init.d/haproxy

    mkdir -p $ROOTDIR/usr/sbin
    cp haproxy $ROOTDIR/usr/sbin

    mkdir -p $ROOTDIR/usr/share/$PKGRADIX/$PKGRADIX-$PKGVER
    cp doc/intro.txt $ROOTDIR/usr/share/$PKGRADIX/$PKGRADIX-$PKGVER/
    cp doc/lua.txt $ROOTDIR/usr/share/$PKGRADIX/$PKGRADIX-$PKGVER/
    cp doc/architecture.txt $ROOTDIR/usr/share/$PKGRADIX/$PKGRADIX-$PKGVER/
    cp doc/management.txt $ROOTDIR/usr/share/$PKGRADIX/$PKGRADIX-$PKGVER/
    cp doc/configuration.txt $ROOTDIR/usr/share/$PKGRADIX/$PKGRADIX-$PKGVER/
    cp doc/network-namespaces.txt $ROOTDIR/usr/share/$PKGRADIX/$PKGRADIX-$PKGVER/
    set_default_perm $ROOTDIR
}

function do_clean {
    $FLXMAKE clean
    ( do_delpack )
    return 0
}