#!/bin/sh
#-
# Copyright (c) 2013-2014 Dag-Erling Smørgrav
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote
#    products derived from this software without specific prior written
#    permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR 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.
#

# Print an informational message
info() {
	echo "mkpkgng: $@"
}

# Print an error message and exit
error() {
	echo "mkpkgng: $@" 1>&2
	exit 1
}

# Ask a yes / no question
yesno() {
        while :; do
                echo -n "mkpkgng: $@ (yes/no) "
                read answer
                case $answer in
                [Yy]|[Yy][Ee][Ss])
                        return 0
                        ;;
                [Nn]|[Nn][Oo])
                        return 1
                        ;;
                esac
        done
}

#
# Locate source and build directory
#
srcdir="@abs_top_srcdir@"
builddir="@abs_top_builddir@"
cd "$srcdir"

#
# Determine pkgng version and ABI
#
pkgver=$(pkg -v)
[ -n "$pkgver" ] || error "Unable to determine pkgng version."
pkgabi=$(pkg config abi)
[ -n "$pkgabi" ] || error "Unable to determine package ABI."

#
# Determine package name and version
#
package="@PACKAGE@"
version="@PACKAGE_VERSION@"
if ! expr "$version" : "[0-9]{1,}$" >/dev/null ; then
	svnversion="$(svnversion 2>&1)"
	svnversion=$(expr "$svnversion" : '\([0-9][0-9]*\)[A-Z]\{0,1\}$')
	if [ -n "$svnversion" ] ; then
		package="$package-$version"
		version="r$svnversion"
	else
		package="$package-$version"
		version="$(date '+%Y%m%d')"
	fi
fi

#
# Locate GNU make
#
if which gmake >/dev/null ; then
	make=gmake
else
	make=make
fi
make="$make --no-print-directory --quiet V=0"

#
# Create temporary directory
#
info "Creating the temporary directory."
tmproot=$(mktemp -d "${builddir}/$package-$version.XXXXXX")
[ -n "$tmproot" -a -d "$tmproot" ] || \
    error "Unable to create the temporary directory."
trap "exit 1" INT
trap "info Deleting the temporary directory. ; rm -rf '$tmproot'" EXIT
set -e

#
# Install into tmproot
#
info "Installing into the temporary directory."
$make install DESTDIR="$tmproot"

#
# Compress man pages
#
find $tmproot -type d -name 'man[0-9]' |
while read mandir ; do
	find $mandir -type f -name '*.[0-9]' |
	while read manpage ; do
		gzip "$manpage"
	done
	find $mandir -type l -name '*.[0-9]' |
	while read manlink ; do
		ln -s "$(readlink $manlink).gz" "$manlink.gz"
	done
done

#
# Generate stub manifest
#
info "Generating the stub manifest."
manifest="$tmproot/+MANIFEST"
cat >"$manifest" <<EOF
name: $package
version: $version
origin: local/$package
comment: BSD-licensed cryptographic libraries
arch: $pkgabi
www: @PACKAGE_URL@
maintainer: @PACKAGE_BUGREPORT@
prefix: @prefix@
categories: [ security ]
EOF
cp "$srcdir/README" "$tmproot/+DESC"

#
# Generate file list
#
info "Generating the file list."
(
	echo "files: {"
	find -s "$tmproot@prefix@" -type f -or -type l | while read file ; do
		case $file in
		*.la)
			continue
			;;
		esac
		mode=$(stat -f%p "$file" | cut -c 3-)
		file="${file#$tmproot}"
		echo "  $file: { uname: root, gname: wheel, perm: $mode }"
	done
	echo "}"
)>>"$manifest"

#
# Create the package
#
info "Creating the package."
pkg create -r "$tmproot" -m "$tmproot" -o "$builddir"

#
# Done
#
info "Package created for $package-$version."