# Build recipe for gzip.
#
# Copyright (c) 2016-2018, 2020 Matias Fonzo, <selk@dragora.org>.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Exit immediately on any error
set -e

program=gzip
version=1.10
release=3

# Define a category for the output of the package name
pkgcategory=compressors

tarname=${program}-${version}.tar.gz

# Remote source(s)
fetch=https://ftp.gnu.org/gnu/gzip/$tarname

description="
Compression utility.

Gzip (GNU zip) is a compression utility designed to be a replacement
for 'compress'.  Its main advantages over 'compress' are much better
compression and freedom from patented algorithms.  It has been adopted
by the GNU project and is now relatively popular on the Internet.

This package has been built to be used with the zutils package.
"

homepage=https://www.gnu.org/software/gzip
license=GPLv3+

# Source documentation
docs="AUTHORS COPYING ChangeLog NEWS README* THANKS TODO"
docsdir="${docdir}/${program}-${version}"

build()
{
    unpack "${tardir}/$tarname"

    cd "$srcdir"

    # Set sane permissions
    chmod -R u+w,go-w,a+rX-s .

    ./configure DEFS="NO_ASM" CPPFLAGS="$QICPPFLAGS" CFLAGS="$QICFLAGS" LDFLAGS="$QILDFLAGS -static" \
     $configure_args \
     --libdir=/usr/lib${libSuffix} \
     --infodir=$infodir \
     --mandir=$mandir \
     --program-transform-name='s/^z/gz/' \
     --build="$(gcc -dumpmachine)"

    make -j${jobs} V=1
    make -j${jobs} DESTDIR="$destdir" install

    # No, no hard links for the package size
    ( cd "${destdir}/usr/bin" && ln -sf gunzip uncompress )

    (
        cd "${destdir}/${mandir}/man1" || exit 1
        ln -sf gzip.1    gunzip.1
        ln -sf gzip.1    gzcat.1
        ln -sf gzdiff.1  gzcmp.1
    )

    # Compress info documents deleting index file for the package
    if test -d "${destdir}/$infodir"
    then
        rm -f "${destdir}/${infodir}/dir"
        lzip -9 "${destdir}/${infodir}"/*
    fi

    # Compress and link man pages (if needed)
    if test -d "${destdir}/$mandir"
    then
        (
            cd "${destdir}/$mandir"
            find . -type f -exec lzip -9 {} +
            find . -type l | while read -r file
            do
                ln -sf "$(readlink -- "$file").lz" "${file}.lz"
                rm -- "$file"
            done
        )
    fi

    # Copy documentation
    mkdir -p "${destdir}/$docsdir"
    cp -p $docs "${destdir}/$docsdir"
}

