system/bcache-tools: Added (block layer cache userspace utilities).

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

system/bcache-tools/README

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+These are the userspace tools required for bcache.
+
+Bcache is a patch for the Linux kernel to use SSDs to cache other block
+devices. For more information, see http://bcache.evilpiepirate.org.
+Documentation for the run time interface is included in the kernel tree, in
+Documentation/bcache.txt.
+
+Included:
+
+make-bcache
+Formats a block device for use with bcache. A device can be formatted for use
+as a cache or as a backing device (requires yet to be implemented kernel
+support). The most important option is for specifying the bucket size.
+Allocation is done in terms of buckets, and cache hits are counted per bucket;
+thus a smaller bucket size will give better cache utilization, but poorer write
+performance. The bucket size is intended to be equal to the size of your SSD's
+erase blocks, which seems to be 128k-512k for most SSDs; feel free to
+experiment.
+
+bcache-super-show
+Prints the bcache superblock of a cache device or a backing device.
+
+Udev rules
+The first half of the rules do auto-assembly and add uuid symlinks
+to cache and backing devices.  If util-linux's libblkid is
+sufficiently recent (2.24) the rules will take advantage of
+the fact that bcache has already been detected.  Otherwise
+they call a small probe-bcache program that imitates blkid.
+
+The second half of the rules add symlinks to cached devices,
+which are the devices created by the bcache kernel module.
+
+Initramfs support
+Currently initramfs-tools, mkinitcpio and dracut are supported.

system/bcache-tools/bcache-tools.SlackBuild

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+#!/bin/sh
+# Copyright 2014 Nikos Giotis <nikos.giotis@gmail.com>
+# 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=bcache-tools
+VERSION=${VERSION:-1.0.8}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) export ARCH=i486 ;;
+    arm*) export ARCH=arm ;;
+       *) export ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i486" ]; then
+  SLKCFLAGS="-O2 -march=i486 -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 $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz || tar xvf $CWD/v$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+
+# Patch for slackware compatibility
+# Disable initramfs, initcpio and dracut installations from 'make install' step
+zcat $CWD/no-initramfs-initcpio-dracut-install.patch.gz | patch -p0 --verbose
+
+# Fix permissions
+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 {} \;
+
+# Build
+cd $TMP/$PRGNAM-$VERSION
+CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" make
+mkdir -p $PKG/usr/sbin
+mkdir -p $PKG/lib/udev
+mkdir -p $PKG/lib/udev/rules.d
+mkdir -p $PKG/usr/share/man/man8
+make install DESTDIR=$PKG
+
+# Man pages
+mv $PKG/usr/share/man $PKG/usr/
+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
+rm -rf $PKG/usr/share
+
+# Documentation
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+cat $TMP/$PRGNAM-$VERSION/README > $PKG/usr/doc/$PRGNAM-$VERSION/README
+cat $TMP/$PRGNAM-$VERSION/COPYING > $PKG/usr/doc/$PRGNAM-$VERSION/COPYING
+
+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/bcache-tools/bcache-tools.info

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+PRGNAM="bcache-tools"
+VERSION="1.0.8"
+HOMEPAGE="https://github.com/g2p/bcache-tools"
+DOWNLOAD="https://github.com/g2p/bcache-tools/archive/v1.0.8.tar.gz"
+MD5SUM="d1632a7c37214e0aa38f3cf95624fa46"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Nikos Giotis"
+EMAIL="nikos.giotis@gmail.com"

system/bcache-tools/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------------------------------------------------------|
+bcache-tools: bcache-tools (Linux kernel block layer cache userspace utilities)
+bcache-tools:
+bcache-tools: Bcache is a Linux kernel block layer cache. It allows one or more
+bcache-tools: fast disk drives such as flash-based solid state drives (SSDs) to
+bcache-tools: act as a cache for one or more slower hard disk drives.
+bcache-tools:
+bcache-tools:
+bcache-tools:
+bcache-tools:
+bcache-tools:
+bcache-tools: