QLever/script
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This is a script for getting started with QLever along the lines of the Quickstart description
see
usage
./qlever -h
usage: ./qlever [-h|--help| ...]
-h|--help: show this usage
-aw|--all_wikidata: run all steps for wikidata version,env,pull,download and index
-b|--build: build qlever docker image
-p|--pull: pull qlever docker image
-c|--clone: clone qlever
-e|--env: show, check and modify environment
-v|--version: show version of this script
-wd|--wikidata_download: download wikidata data dump
-wi|--wikidata_index: download wikidata data dump
This helper script simplifies the access to the steps outlined in https://github.com/ad-freiburg/qlever/blob/master/docs/quickstart.md
qlever
#!/bin/bash
#
# a script for getting started with QLever
#
# see https://github.com/ad-freiburg/qlever/blob/master/docs/quickstart.md
# see https://wiki.bitplan.com/index.php/QLever
#
#
# WF 2022-01-28
#
# we assume the script is started from the QLEVER_HOME directory
export QLEVER_HOME=$(pwd)
entrypoint="qlever"
version="$Revision: 1.19 $"
versionDate="$Date: 2022/02/02 06:08:11 $"
startTime=0
finishTime=0
#ansi colors
#http://www.csc.uvic.ca/~sae/seng265/fall04/tips/s265s047-tips/bash-using-colors.html
blue='\033[0;34m'
red='\033[0;31m'
green='\033[0;32m' # '\e[1;32m' is too bright for white bg.
endColor='\033[0m'
#
# a colored message
# params:
# 1: l_color - the color of the message
# 2: l_msg - the message to display
#
color_msg() {
local l_color="$1"
local l_msg="$2"
echo -e "${l_color}$l_msg${endColor}"
}
#
# error
#
# show an error message and exit
#
# params:
# 1: l_msg - the message to display
error() {
local l_msg="$1"
# use ansi red for error
color_msg $red "Error: $l_msg" 1>&2
exit 1
}
#
# show the usage
#
usage() {
echo "usage: $0 [-h|--help]"
echo " -h|--help: show this usage"
echo " -aw|--all_wikidata: run all steps for wikidata version,env,pull,download and index"
echo " -b|--build: build qlever docker image"
echo " -p|--pull: pull qlever docker image"
echo " -c|--clone: clone qlever"
echo " -e|--env: show, check and modify environment"
echo " -v|--version: show version of this script"
echo " -wd|--wikidata_download: download wikidata data dump"
echo " -wi|--wikidata_index: download wikidata data dump"
echo ""
echo "This helper script simplifies the access to the steps outlined in https://github.com/ad-freiburg/qlever/blob/master/docs/quickstart.md"
}
#
# show the start of an action
#
show_timing() {
local l_action="$1"
local l_state="$2"
now=$(date)
case $l_state in
started)
startTime=$SECONDS
after=""
;;
finished)
finishTime=$SECONDS
local l_duration=$(( $finishTime - $startTime ))
after=" after $l_duration seconds"
;;
esac
color_msg $blue "$l_action $l_state at $now$after"
}
#
# show the version of this script
#
show_version() {
local l_script=$(basename $0)
color_msg $blue "$l_script version $version $versionDate"
}
#
# check whether program is installed
#
# #1: l_prog - the program to check
#
check_installed() {
local l_prog="$1"
local l_installed="✅"
local l_color=$green
local l_progbin=$(which $l_prog)
which $l_prog > /dev/null
if [ $? -ne 0 ]
then
l_installed="❌"
l_color=$red
fi
color_msg $l_color "$l_prog → $l_progbin $l_installed"
}
#
# show and modify the environment
#
show_env() {
local l_progs="docker top df jq"
case $(uname -a) in
Darwin*)
l_progs="$l_progs sw_vers"
;;
*)
l_progs="$l_progs lsb_release free"
;;
esac
color_msg $blue "needed software"
for l_prog in $l_progs
do
check_installed $l_prog
done
color_msg $blue "operating system"
local l_disks="/dev/s"
case $(uname -a) in
Darwin*)
l_disks="/dev/disk"
sw_vers;;
*)
lsb_release -a
esac
color_msg $blue "docker version"
docker --version
color_msg $blue "memory"
case $(uname -a) in
Darwin*)
top -l 1 | grep PhysMem | cut -f1,2 -d" "
;;
*) free -h
;;
esac
color_msg $blue "diskspace"
df -h | grep $l_disks
ulimit -Sn 1048576
color_msg $blue "soft ulimit for files"
ulimit -Sn
}
#
# check whether the given process runs and kill it if yes
# param #1: l_process - the process to check
#
killIfRunning() {
local l_process="$1"
pgrep -fl "$l_process"
local l_presult=$?
if [ $l_presult -eq 0 ]
then
color_msg "$l_process already running"
# comment out as you like
# either stop here
#echo "to kill the process you might want to use"
#echo "pkill -f $l_process"
#exit 1
# or fully automatic kill
color_msg "killing $l_process"
pkill -f "$l_process"
fi
}
#
# kill a running qlever process
#
qlever_kill() {
killIfRunning qlever
}
#
# pull the qlever image
#
qlever_pull() {
show_timing "pulling qlever docker image" "started"
docker pull adfreiburg/qlever
show_timing "pulling qlever docker image" "finished"
entrypoint="adfreiburg/qlever"
}
#
# clone the qlever code
#
qlever_clone() {
cd $QLEVER_HOME
if [ ! -d qlever-code ]
then
color_msg $blue "cloning qlever - please wait typically 1 min ..."
show_timing "cloning qlever" "started"
git clone --recursive https://github.com/ad-freiburg/qlever qlever-code
show_timing "cloning qlever" "finished"
else
color_msg $green "clone of clever-code already available"
fi
}
#
# build the docker image
#
qlever_build() {
#docker images | grep qlever
#if [ $? -ne 0 ]
#then
cd $QLEVER_HOME/qlever-code
color_msg $blue "building qlever - please wait typically 15 min ..."
show_timing "docker build" "started"
# docker build -t qlever .
docker build --file Dockerfiles/Dockerfile.Ubuntu20.04 -t qlever .
show_timing "docker build" "finished"
#else
# color_msg $green "qlever image already build"
#fi
}
#
# generic download
#
# params
# 1: title of the download
# 2: expected time
# 3: url to download from
#
download() {
local l_title="$1"
local l_expected="$2"
local l_url="$3"
color_msg $blue "downloading $l_title ... please wait typically $l_expected ..."
show_timing "$l_title download" "started"
wget $l_url
show_timing "$l_title download" "finished"
}
#
# wikidata download
#
wikidata_download() {
cd $QLEVER_HOME
target=qlever-indices/wikidata
if [ ! -d $target ]
then
mkdir -p $target
cd $target
config=$QLEVER_HOME/qlever-code/examples/wikidata.settings.json
color_msg $blue "copying config file $config"
cp -p $config .
download "wikidata lexemes" "3min" https://dumps.wikimedia.org/wikidatawiki/entities/latest-lexemes.ttl.bz2
download "wikidata dump" "6hours" https://dumps.wikimedia.org/wikidatawiki/entities/latest-all.ttl.bz2;date
else
color_msg $green "wikidata dump already downloaded"
fi
}
#
# build the wikidata index
#
wikidata_index() {
cd $QLEVER_HOME
chmod o+w .
show_timing "creating wikidata index" "started"
docker run -i --rm -v $QLEVER_HOME/qlever-indices/wikidata:/index --entrypoint bash $entrypoint -c "cd /index && bzcat latest-all.ttl.bz2 latest-lexemes.ttl.bz2 | IndexBuilderMain -F ttl -f - -l -i wikidata -s wikidata.settings.json | tee wikidata.index-log.txt"
show_timing "creating wikidata index" "finished"
}
# commandline options according to usage
while [ "$1" != "" ]
do
option=$1
shift
case $option in
-h|--help)
usage;;
-aw|--all_wikidata)
show_version
show_env
qlever_clone
#qlever_build
qlever_pull
wikidata_download
wikidata_index
;;
-b|--build)
qlever_build
;;
-c|--clone)
qlever_clone
;;
-e|--env)
show_env
;;
-k|--kill)
qlever_kill
;;
-p|--pull)
qlever_pull
;;
-wd|--wikidata_download)
wikidata_download
;;
-wi|--wikidata-index)
wikidata_index
;;
-v|--version)
show_version
;;
-t)
show_timing "testing" "started"
sleep 2
show_timing "testing" "finished"
;;
esac
done