slackbuilds/system/earlyoom/earlyoom.SlackBuild

#!/bin/bash

# Slackware build script for earlyoom

# Copyright 2022 Charadon US
# Copyright 2023 B. Watson
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "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 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.

# 20230829 bkw: BUILD=2
# - add LICENSE and README.md to the doc dir.
# - binary in /usr/sbin, man page in section 8, since this is admin stuff.
# - have the init script delete the PID file after stop or force_stop.
# - actually use SLKCFLAGS.
# - make /etc/default/earlyoom a .new config file.
# - add a bit more detail to README.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=earlyoom
VERSION=${VERSION:-1.7}
BUILD=${BUILD:-2}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
    *) ARCH=$( uname -m ) ;;
esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}"  ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} + -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} +

# 20230829 bkw: don't generate the man page even if pandoc is installed,
# since we're going to use a prebuilt one.
sed -i '/^PANDOC *:=/d' Makefile

# 20230829 bkw: no way to do this on the make command line:
sed -i "/^CFLAGS/s,-Wall,& $SLKCFLAGS," Makefile

# 20230829 bkw: note to self: non-canonical use of BINDIR here. It's not
# the full path (/usr/sbin), it gets PREFIX prepended to it.
make PREFIX=/usr BINDIR=/sbin
strip $PRGNAM
make DESTDIR=$PKG PREFIX=/usr BINDIR=/sbin install-bin

# 20230829 bkw: prebuilt man page is a bit different from the generated one:
# - it's a section 8 page.
# - it has the date and "Linux System Administrator's Manual" filled in.
# - get rid of fancy unicode angle brackets for email addresses, just use <>.
mkdir -p $PKG/usr/man/man8
gzip -9 < $CWD/earlyoom.8 > $PKG/usr/man/man8/earlyoom.8.gz

install -Dm644 $CWD/rc.earlyoom $PKG/etc/rc.d/rc.earlyoom.new
install -Dm644 earlyoom.default $PKG/etc/default/earlyoom.new

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a README* LICENSE* $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE