#!/bin/sh

### 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}

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

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

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

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

MAKEDEPENDS=( "${DEP_PCRE[@]}" "${DEP_OPENSSL[@]}" "${DEP_JEMALLOC[@]}" "libslz-*:::*.h *.a" )


### determine the download URL from the package version
if [ -z "${PKGVER##*.*}" ]; then
   # eg: "1.7-dev4"
   SRC_GIT_COMMIT="v${PKGVER}"
   if [ -z "${PKGVER##*-dev*}" ]; then
     BRANCH=""
   else
     BRANCH="${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.formilux.org/?p=people/willy/haproxy${BRANCH:+-$BRANCH}.git;a=snapshot;h=$SRC_GIT_COMMIT;sf=tgz"


### patches
# Patches below 1000 are bugfixes and initial backports.
# Patches above 1000 are package-specific and late backports (eg: dlmalloc below).
PATCH_LIST="
0001-MINOR-cfgparse-few-memory-leaks-fixes.patch
0002-MEDIUM-log-Decompose-Tq-in-Th-Ti-TR.patch
0003-CLEANUP-logs-remove-unused-log-format-field-definiti.patch
0004-BUILD-MAJOR-updated-51d-Trie-implementation-to-incor.patch
0005-BUG-MAJOR-stream-properly-mark-the-server-address-as.patch
0006-CLEANUP-proto_http-Removing-useless-variable-assigna.patch
0007-CLEANUP-dumpstats-Removing-useless-variables-allocat.patch
0008-CLEANUP-dns-Removing-usless-variable-assignation.patch
0009-BUG-MINOR-payload-fix-SSLv2-version-parser.patch
0010-MINOR-cli-allow-the-semi-colon-to-be-escaped-on-the-.patch
"

# 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 {
    # halog
    (
      cd contrib/halog
      $FLXMAKE CC=$CC halog
    )

    # haproxy
    case "$FLX_ARCH_SMALL" in
      i?86)   REGPARM=1 ; VSYSCALL=1 ; FUTEX=1 ;;
      x86*)   REGPARM=1 ; VSYSCALL= ; FUTEX=1 ;;
         *)   REGPARM=  ; VSYSCALL= ; FUTEX= ;;
    esac

    # splice() was introduced in glibc-2.6
    # accept4() was introduced in glibc-2.10
    case "$(readlink $FLXROOTDIR/lib/libc.so.?)" in
       libc-2.[0-5].*) MY_SPLICE=1 ; MY_ACCEPT4=1 ;;
       libc-2.[6-9].*) MY_SPLICE=  ; MY_ACCEPT4=1 ;;
          libc-2.1*.*) MY_SPLICE=  ; MY_ACCEPT4=  ;;
                    *) MY_SPLICE=  ; MY_ACCEPT4=  ;;
    esac

    if [ -z "${FLXARCH##arm*}" ]; then
      USE_ACCEPT4=
    else
      USE_ACCEPT4=implicit
    fi

    SYSTEM_MAXCONN= ; DEFAULT_MAXCONN=10000 ; MEMMAX= 

    $FLXPMAKE CC="$CC" EXTRA= \
      LDFLAGS="\$(ARCH_FLAGS) -g ${STATIC_FLAG}" \
      ADDLIB="${JEMALLOC_FLAG} -lpthread -ldl" \
      TARGET=linux2628 USE_PCRE="${PCRE_FLAG}" PCREDIR=$FLXROOTDIR/usr \
      SMALL_OPTS="${SYSTEM_MAXCONN:+-DSYSTEM_MAXCONN=$SYSTEM_MAXCONN }${DEFAULT_MAXCONN:+-DDEFAULT_MAXCONN=$DEFAULT_MAXCONN }-DDEFAULT_SSL_MAX_RECORD=2859" \
      USE_MY_SPLICE=${MY_SPLICE} USE_ACCEPT4=${USE_ACCEPT4} USE_MY_ACCEPT4=${MY_ACCEPT4} USE_TFO=1 \
      USE_REGPARM=${REGPARM} USE_VSYSCALL=${VSYSCALL} \
      USE_OPENSSL="${OPENSSL_FLAG}" USE_FUTEX=${FUTEX} USE_SLZ=1 USE_NS=1 \
      SILENT_DEFINE="-DLISTEN_DEFAULT_CIPHERS=\"\\\"AES:RC4:ALL:!aNULL:!eNULL:!LOW:!EXPORT:!SSLv2\\\"\" \
                     -DCONNECT_DEFAULT_CIPHERS=\"\\\"AES:RC4:ALL:!aNULL:!eNULL:!LOW:!EXPORT:!SSLv2\\\"\""
}

function do_prepack {
    # halog
    mkdir -p $ROOTDIR/usr/bin
    cp contrib/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/
    cp examples/debug2ansi examples/debug2html examples/debugfind $ROOTDIR/usr/share/$PKGRADIX/$PKGRADIX-$PKGVER/
    set_default_perm $ROOTDIR
}

function do_clean {
    $FLXMAKE clean
    rm -f contrib/halog/halog{,64}
    ( do_delpack )
    return 0
}