system/tini: Added (init for containers).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

system/tini/README

@@ -0,0 +1,15 @@
+Tini is a tiny but valid init for containers.  All Tini does is spawn a
+single child (Tini is meant to be run in a container), and wait for it
+to exit all the while reaping zombies and performing signal forwarding.
+
+Using Tini has several benefits:
+
+- It protects you from software that accidentally creates zombie
+  processes, which can (over time!) starve your entire system for PIDs
+  (and make it unusable).
+- It ensures that the default signal handlers work for the software you
+  run in your Docker image.  For example, with Tini, SIGTERM properly
+  terminates your process even if you didn't explicitly install a signal
+  handler for it.
+- It does so completely transparently!  Docker images that work without
+  Tini will work with Tini without any changes.

system/tini/slack-desc

@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+    |-----handy-ruler------------------------------------------------------|
+tini: tini (a tiny but valid init for containers)
+tini:
+tini: All Tini does is spawn a single child (Tini is meant to be run in a
+tini: container), and wait for it to exit all the while reaping zombies and
+tini: performing signal forwarding.
+tini:
+tini: Homepage: https://github.com/krallin/tini
+tini:
+tini:
+tini:
+tini:

system/tini/tini.SlackBuild

@@ -0,0 +1,101 @@
+#!/bin/sh
+
+# Slackware build script for tini
+
+# Copyright 2017 Audrius Kažukauskas <audrius@neutrino.lt>
+# 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.
+
+PRGNAM=tini
+GITHASH=${GITHASH:-949e6fa}
+VERSION=${VERSION:-0.13.0_${GITHASH}}
+SRCVERSION=${SRCVERSION:-949e6facb77383876aeff8a6944dde66b3089574}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$SRCVERSION
+tar xvf $CWD/$PRGNAM-$SRCVERSION.tar.gz
+cd $PRGNAM-$SRCVERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+# Patch git hash to be displayed in version output.
+sed -i "s/@tini_VERSION_GIT@/ - git.${GITHASH}/" src/tiniConfig.h.in
+
+mkdir -p build
+cd build
+  cmake \
+    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_INSTALL_PREFIX=/usr \
+    -DPR_SET_CHILD_SUBREAPER=36 \
+    -DPR_GET_CHILD_SUBREAPER=37 \
+    -DCMAKE_BUILD_TYPE=Release ..
+  make
+  make install DESTDIR=$PKG
+cd ..
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a LICENSE README.md $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}

system/tini/tini.info

@@ -0,0 +1,10 @@
+PRGNAM="tini"
+VERSION="0.13.0_949e6fa"
+HOMEPAGE="https://github.com/krallin/tini"
+DOWNLOAD="https://github.com/krallin/tini/archive/949e6fa/tini-949e6facb77383876aeff8a6944dde66b3089574.tar.gz"
+MD5SUM="9873191fc835a79cb94b24377391667e"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Audrius Kažukauskas"
+EMAIL="audrius@neutrino.lt"