system/buildah: Added (container build utility).

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

system/buildah/README

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+buildah is a (daemon-free) container build utility
+
+The Buildah package provides a command line tool that can be used to
+
+* create a working container, either from scratch or using an image as a
+  starting point
+* create an image, either from a working container or via the instructions in a
+  Dockerfile
+* images can be built in either the OCI image format or the traditional
+  upstream docker image format
+* mount a working container's root filesystem for manipulation
+* unmount a working container's root filesystem
+* use the updated contents of a container's root filesystem as a filesystem
+  layer to create a new image
+* delete a working container or an image
+* rename a local container
+
+For examples, see:
+* https://github.com/containers/buildah or /usr/doc/buildah-*/README.md
+* man pages
+
+non-root usage:
+
+plenty of kernel recent kernel's support the user-namespace sub uid/gid
+mapping. Only recent versions of shadow-utils will append a new mapping for
+users when they are created. You may have to add a mapping for your user like
+so:
+
+```shell
+echo "$YOURUSER:100000:65536" > /etc/subuid
+echo "$YOURGROUP:100000:65536" > /etc/subgid
+```
+
+if you have more than one non-root user to add a mapping for, then their start
+number (like `100000` above) would begin after 100000+65536.

system/buildah/buildah.SlackBuild

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+#!/bin/sh
+
+# Slackware build script for buildah
+
+# Copyright 2019 Vincent Batts, Raleigh, NC, USA
+# 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=buildah
+VERSION=${VERSION:-1.5}
+GIT_COMMIT="e94b4f9"
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+# The domain part of the go package name, usually the hosting platform
+DOMAIN=github.com
+# The name of the organization/owner of the package
+ORG=containers
+
+if [ -z "$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
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  LIBDIRSUFFIX="64"
+else
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+mkdir -p $PRGNAM-$VERSION/src/$DOMAIN/$ORG
+cd $PRGNAM-$VERSION/src/$DOMAIN/$ORG
+rm -rf $PRGNAM
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+mv $PRGNAM-$VERSION $PRGNAM
+cd $PRGNAM
+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 {} \;
+
+# Point go to the location of the source tree
+export GOPATH="$TMP/$PRGNAM-$VERSION"
+
+sed -i 's|GIT_COMMIT :=|GIT_COMMIT ?=|' Makefile
+
+make binary docs GIT_COMMIT="$GIT_COMMIT" TAGS="'seccomp containers_image_ostree_stub'"
+make install install.completions GIT_COMMIT="$GIT_COMMIT" PREFIX="/usr" DESTDIR="$PKG" MANDIR="/usr/man"
+
+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
+
+find $PKG/usr/man -type f -exec gzip -9 {} \;
+for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a \
+  LICENSE README.md vendor.conf \
+  $PKG/usr/doc/$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/buildah/buildah.info

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+PRGNAM="buildah"
+VERSION="1.5"
+HOMEPAGE="https://github.com/containers/buildah"
+DOWNLOAD="https://github.com/containers/buildah/archive/v1.5/buildah-1.5.tar.gz"
+MD5SUM="a1b38dcbab076e058e1098a84fde3c17"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES="go-md2man runc"
+MAINTAINER="Vincent Batts"
+EMAIL="vbatts@hashbangbash.com"

system/buildah/slack-desc

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+# 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------------------------------------------------------|
+buildah: buildah (container build utility)
+buildah:
+buildah: buildah facilitates building OCI container images, all without a
+buildah: daemon. It supports a bash-style invocation, as well as Dockerfiles.
+buildah:
+buildah: https://github.com/containers/buildah
+buildah:
+buildah:
+buildah:
+buildah:
+buildah: