From 340a7ece34013345e1520dcac38218b7d41c7c26 Mon Sep 17 00:00:00 2001 From: Mohammad Akhlaghi Date: Wed, 6 Feb 2019 18:16:41 +0000 Subject: Removed .sh suffix in download wrapper script We don't have a `.sh' suffix in the other scripts of `reproduce/src/bash', so it was also removed from this script. --- reproduce/src/bash/download-multi-try | 110 +++++++++++++++++++++++++++++++ reproduce/src/bash/download-multi-try.sh | 108 ------------------------------ 2 files changed, 110 insertions(+), 108 deletions(-) create mode 100755 reproduce/src/bash/download-multi-try delete mode 100755 reproduce/src/bash/download-multi-try.sh (limited to 'reproduce/src/bash') diff --git a/reproduce/src/bash/download-multi-try b/reproduce/src/bash/download-multi-try new file mode 100755 index 0000000..642908e --- /dev/null +++ b/reproduce/src/bash/download-multi-try @@ -0,0 +1,110 @@ +#!.local/bin/bash +# +# Attempt downloading multiple times before crashing whole pipeline. From +# the top paper directory (for the shebang above), this script must be run +# like this: +# +# $ ./download-multi-try downloader lockfile input-url downloaded-name +# +# Due to temporary network problems, a download may fail suddenly, but +# succeed in a second try a few seconds later. Without this script that +# temporary glitch in the network will permanently crash the pipeline and +# it can't continue. The job of this script is to be patient and try the +# download multiple times before crashing the whole pipeline. +# +# LOCK FILE: Since there is ultimately only one network port to the outside +# world, downloading is done much faster in serial, not in parallel. But +# the pipeline's processing may be done in parallel (with multiple threads +# needing to download different files at the same time). Therefore, this +# script uses the `flock' program to only do one download at a time. To +# benefit from it, any call to this script must be given the same lock +# file. +# +# Original author: +# Mohammad Akhlaghi +# Contributing author(s): +# Copyright (C) 2019, Mohammad Akhlaghi. +# +# This script is free software: you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# This script is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. See . + + + + + +# Script settings +# --------------- +# Stop the script if there are any errors. +set -e + + + + + +# Input arguments and necessary sanity checks. +inurl="$3" +outname="$4" +lockfile="$2" +downloader="$1" +if [ "x$downloader" = x ]; then + echo "$0: downloader (first argument) not given."; exit 1; +fi +if [ "x$lockfile" = x ]; then + echo "$0: lock file (second argument) not given."; exit 1; +fi +if [ "x$inurl" = x ]; then + echo "$0: full input URL (third argument) not given."; exit 1; +fi +if [ "x$outname" = x ]; then + echo "$0: output name (fourth argument) not given."; exit 1; +fi + + + + + +# Try downloading multiple times before crashing +counter=0 +maxcounter=10 +while [ ! -f "$outname" ]; do + + # Increment the counter. We need the `counter=' part here because + # without it the evaluation of arithmetic expression will be like and + # error and the script is set to crash on errors. + counter=$((counter+1)) + + # If we have passed a maximum number of trials, just exit with + # a failed code. + if (( counter > maxcounter )); then + echo + echo "Failed $maxcounter download attempts: $outname" + echo + exit 1 + fi + + # If this isn't the first attempt print a notice and wait a little for + # the next trail. + if (( counter > 1 )); then + tstep=$((counter*5)) + echo "Download trial $counter for '$outname' in $tstep seconds." + sleep $tstep + fi + + # Attempt downloading the file (one-at-a-time). + flock "$lockfile" bash -c \ + "if ! $downloader -O$outname $inurl; then rm -f $outname; fi" +done + + + + + +# Return successfully +exit 0 diff --git a/reproduce/src/bash/download-multi-try.sh b/reproduce/src/bash/download-multi-try.sh deleted file mode 100755 index 31490c9..0000000 --- a/reproduce/src/bash/download-multi-try.sh +++ /dev/null @@ -1,108 +0,0 @@ -#!.local/bin/bash -# -# Try downloading multiple times before crashing whole pipeline -# -# $ ./download-multi-try downloader lockfile input-url downloaded-name -# -# Due to temporary network problems, a download may fail suddenly, but -# succeed in a second try a few seconds later. Without this script that -# temporary glitch in the network will permanently crash the pipeline and -# it can't continue. The job of this script is to be patient and try the -# download multiple times before crashing the whole pipeline. -# -# LOCK FILE: Since there is ultimately only one network port to the outside -# world, downloading is done much faster in serial, not in parallel. But -# the pipeline's processing may be done in parallel (with multiple threads -# needing to download different files at the same time). Therefore, this -# script uses the `flock' program to only do one download at a time. To -# benefit from it, any call to this script must be given the same lock -# file. -# -# Original author: -# Mohammad Akhlaghi -# Contributing author(s): -# Copyright (C) 2019, Mohammad Akhlaghi. -# -# This script is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This script is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. See . - - - - - -# Script settings -# --------------- -# Stop the script if there are any errors. -set -e - - - - - -# Input arguments and necessary sanity checks. -inurl="$3" -outname="$4" -lockfile="$2" -downloader="$1" -if [ "x$downloader" = x ]; then - echo "$0: downloader (first argument) not given."; exit 1; -fi -if [ "x$lockfile" = x ]; then - echo "$0: lock file (second argument) not given."; exit 1; -fi -if [ "x$inurl" = x ]; then - echo "$0: full input URL (third argument) not given."; exit 1; -fi -if [ "x$outname" = x ]; then - echo "$0: output name (fourth argument) not given."; exit 1; -fi - - - - - -# Try downloading multiple times before crashing -counter=0 -maxcounter=10 -while [ ! -f "$outname" ]; do - - # Increment the counter. We need the `counter=' part here because - # without it the evaluation of arithmetic expression will be like and - # error and the script is set to crash on errors. - counter=$((counter+1)) - - # If we have passed a maximum number of trials, just exit with - # a failed code. - if (( counter > maxcounter )); then - echo - echo "Failed $maxcounter download attempts: $outname" - echo - exit 1 - fi - - # If this isn't the first attempt print a notice and wait a little for - # the next trail. - if (( counter > 1 )); then - tstep=$((counter*5)) - echo "Download trial $counter for '$outname' in $tstep seconds." - sleep $tstep - fi - - # Attempt downloading the file (one-at-a-time). - flock "$lockfile" bash -c \ - "if ! $downloader -O$outname $inurl; then rm -f $outname; fi" -done - - - - - -# Return successfully -exit 0 -- cgit v1.2.1