#!/usr/bin/env bash
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

GDBDIR="${SRCDIR}/solenv/gdb"
INSTALLDIR="${TESTINSTALLDIR}"
DYLIB=so
if [ "$(uname)" = Darwin ]; then
    INSTALLDIR=$INSTALLDIR/LibreOffice.app/Contents
    DYLIB=dylib
fi

die() {
    echo "$1" >&2
    exit 1
}

usage() {
    cat <<EOT
Install gdb pretty printers and autoloaders for them.

Usage:
install-gdb-printers [ -a dir ] [ -i dir ] [ -p dir ] [ -c ]
install-gdb-printers -h

Options:
-a dir  The dir where autoloaders will be placed. Defaults to whatever -i
        is.
-c      Create the autoloader's dir if it does not exist. This option only
        makes sense if both -a and -i are used.
-h      Show this help text.
-i dir  The dir where libreoffice is installed. Defaults to whatever -a is.
-p dir  The dir where pretty printers are placed.

Env. variables:
DESTDIR     If set, it is prepended to all dir arguments.

Examples:
1) Install pretty printers into /usr/share/libreoffice/gdb, with
   autoloaders in /usr/share/gdb/auto-load (run
   "info gdb 'Extending GDB' Python Auto-loading" to learn more) and
   installation in /usr/lib64/libreoffice (this is what Fedora does):

install-gdb-printers -a /usr/share/gdb/auto-load/usr/lib64/libreoffice -c \\
    -i /usr/lib64/libreoffice -p /usr/share/libreoffice/gdb
EOT
}

make_autoload() {
    local lib="${DESTDIR}${autoloaddir}/$2/$3"
    local merged="$4"

    local resolved="$(readlink "${DESTDIR}${installdir}/$2/$3")"
    [ -n "$resolved" ] && lib=$resolved
    local dir="${lib%/*}"

    if ${create}; then
        mkdir -p "${dir}" || die "cannot create dir '${dir}'"
    fi

    [[ -f ${lib}-gdb.py ]] && rm -f "${lib}-gdb.py"
    if [[ -n "${merged}" ]]; then
        sed -e "s!%PYTHONDIR%!${pythondir}!" -e "s!%MODULES%!${*:5}!" \
            "${GDBDIR}/autoload.template" > "${lib}-gdb.py"
    else
        sed -e "s!%PYTHONDIR%!${pythondir}!" -e "s!%MODULES%!$1!" \
            "${GDBDIR}/autoload.template" > "${lib}-gdb.py"
    fi
}

# dir where the autoloaders will be placed
autoloaddir=
# The installation dir. If only one of these is set, the other is set to
# the same value.
installdir=
# dir where the pretty printers will be placed
pythondir="${GDBDIR}"
# Create autoload dir if it does not exist. This only makes sense when
# installing into system gdb dir, so $autoloaddir must be absolute path.
create=false

#  b de g  jklmno qrstuvwxyzABCDEFGHIJK MNOPQRSTUVWXYZ0123456789
while getopts :a:cfhi:p:L opt; do
    case ${opt} in
        a) autoloaddir="${OPTARG}" ;;
        c) create=true ;;
        h) usage; exit ;;
        i) installdir="${OPTARG}" ;;
        p) pythondir="${OPTARG}" ;;
        *) die "unknown option ${OPTARG}" ;;
    esac
done

if [[ -z ${autoloaddir} && -z ${installdir} ]]; then
    autoloaddir="${INSTALLDIR}"
    installdir="${INSTALLDIR}"
elif [[ -n ${autoloaddir} && -z ${installdir} ]]; then
    installdir="${autoloaddir}"
elif [[ -z ${autoloaddir} && -n ${installdir} ]]; then
    autoloaddir="${installdir}"
fi

if [[ -n ${DESTDIR} ]]; then
    [[ ${autoloaddir:0:1} = / ]] || die 'the arg to -a must be an absolute path'
    [[ ${pythondir:0:1} = / ]] || die 'the arg to -p must be an absolute path'
fi
if ${create}; then
    [[ ${autoloaddir:0:1} = / ]] || die 'the arg to -a must be an absolute path'
else
    [[ ! -d ${DESTDIR}${autoloaddir} ]] && die "directory '${DESTDIR}${autoloaddir}' does not exist"
fi
[[ ! -d ${DESTDIR}${installdir} ]] && die "directory '${DESTDIR}${installdir}' does not exist"
[[ ! -d ${GDBDIR} ]] && die "directory '${GDBDIR}' does not exist"

if [[ ${DESTDIR}${pythondir} != ${GDBDIR} ]]; then
    mkdir -p "${DESTDIR}${pythondir}" || die "cannot create dir '${DESTDIR}${pythondir}'"
    cp -pr "${GDBDIR}/libreoffice" "${DESTDIR}${pythondir}"
fi

if [[ -n "${MERGELIBS}" ]]; then
    make_autoload merged program libmergedlo."$DYLIB" merge svl tl basegfx
    make_autoload cppu program libuno_cppu."$DYLIB".3
    make_autoload sal program libuno_sal."$DYLIB".3
    make_autoload sw program libswlo."$DYLIB"
else
    make_autoload basegfx program libbasegfxlo."$DYLIB"
    make_autoload cppu program libuno_cppu."$DYLIB".3
    make_autoload sal program libuno_sal."$DYLIB".3
    make_autoload svl program libsvllo."$DYLIB"
    make_autoload sw program libswlo."$DYLIB"
    make_autoload tl program libtllo."$DYLIB"
fi
make_autoload writerfilter program libwriterfilterlo."$DYLIB"

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