454 lines
13 KiB
Bash
Executable File
454 lines
13 KiB
Bash
Executable File
#!/bin/bash -
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#===============================================================================
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#
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# FILE: repair_item
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#
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# USAGE: ./repair_item [-h] [-v] [-d {0|1}] [-D] [-l N] itemname
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#
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# DESCRIPTION: Repairs an IA "item" (HPR show) if something has failed during
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# the upload.
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#
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# The most common failures are caused by the file upload
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# processes timing out and being aborted (by the 'ia' tool which
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# performs the item creation and the uploads). This failure
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# means that a show being processed on 'borg' does not get all
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# of the components loaded to the IA.
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#
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# This script looks at the files belonging to the show (stored
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# temporarily on 'borg') and determines which have not been
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# uploaded, then takes steps to perform the uploads.
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#
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# OPTIONS: ---
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# REQUIREMENTS: ---
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# BUGS: ---
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# NOTES: ---
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# AUTHOR: Dave Morriss (djm), Dave.Morriss@gmail.com
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# VERSION: 0.0.6
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# CREATED: 2020-01-05 22:42:46
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# REVISION: 2024-05-10 12:39:52
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#
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#===============================================================================
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#set -o nounset # Treat unset variables as an error
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VERSION="0.0.6"
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SCRIPT=${0##*/}
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# DIR=${0%/*}
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STDOUT="/dev/fd/2"
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#
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# Select the appropriate working directory for the host
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#
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case $(hostname) in
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i7-desktop)
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BASEDIR="$HOME/HPR/InternetArchive"
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UPLOADS="$HOME/HPR/IA/uploads"
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;;
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borg)
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BASEDIR="$HOME/IA"
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UPLOADS="/data/IA/uploads"
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;;
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*)
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echo "Wrong host!"
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exit 1
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;;
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esac
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cd "$BASEDIR" || { echo "Failed to cd to $BASEDIR"; exit 1; }
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#
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# Load library functions
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#
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LIB="$HOME/bin/function_lib.sh"
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[ -e "$LIB" ] || { echo "Unable to source functions"; exit; }
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# shellcheck disable=SC1090
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source "$LIB"
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#
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# Enable coloured messages
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#
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define_colours
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#
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# Sanity checks
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#
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JQ=$(command -v jq)
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[ -n "$JQ" ] || { echo "Program 'jq' was not found"; exit 1; }
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IA=$(command -v ia)
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[ -n "$IA" ] || { echo "Program 'ia' was not found"; exit 1; }
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#
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# Make temporary files and set traps to delete them
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#
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TMP1=$(mktemp) || { echo "$SCRIPT: creation of temporary file failed!"; exit 1; }
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trap 'cleanup_temp $TMP1' SIGHUP SIGINT SIGPIPE SIGTERM EXIT
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# {{{ -- Functions -- Upload, exists_in, queued_tasks, _DEBUG, _usage
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#=== FUNCTION ================================================================
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# NAME: Upload
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# DESCRIPTION: Upload a file to the Internet Archive with various options
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# PARAMETERS: 1 - the item id (e.g. 'hpr1234'
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# 2 - the path to the file for upload
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# 3 - (optional) the path to the file on the IA
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# 4 - (optional) list of options for 'ia upload' enclosed as
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# a string
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# RETURNS: Nothing
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#===============================================================================
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Upload () {
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local id=${1}
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local file=${2}
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local remote=${3:-}
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local options=${4:-}
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if [[ -e $file ]]; then
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if [[ -z $remote ]]; then
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# shellcheck disable=SC2086
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ia upload ${id} ${file} ${options}
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else
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# shellcheck disable=SC2086
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ia upload ${id} ${file} --remote-name=${remote} ${options}
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fi
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else
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echo "File missing: $file"
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fi
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}
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#=== FUNCTION ================================================================
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# NAME: exists_in
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# DESCRIPTION: Checks the existence of a key in an associative array
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# PARAMETERS: $1 array name
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# $2 key value
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# RETURNS: True if the key exists, False otherwise
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#
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# Modified from
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# https://stackoverflow.com/questions/13219634/easiest-way-to-check-for-an-index-or-a-key-in-an-array
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#===============================================================================
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exists_in () {
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# shellcheck disable=SC2086
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eval '[ ${'$1'[$2]+muahaha} ]'
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}
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#=== FUNCTION ================================================================
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# NAME: queued_tasks
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# DESCRIPTION: Queries the IA for any queued or running tasks for an item.
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# Writes the number to STDOUT so it can be captured.
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# PARAMETERS: $1 IA item (like hpr1192)
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# RETURNS: Nothing
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#===============================================================================
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queued_tasks () {
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local item="${1:?Usage: queued_tasks item}"
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local -i count=0
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count="$(ia tasks "$item" |\
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jq -s '[.[] | if .category == "catalog" then .status else empty end] | length')"
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echo "$count"
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return
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}
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#=== FUNCTION ================================================================
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# NAME: _DEBUG
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# DESCRIPTION: Writes a message if in DEBUG mode
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# PARAMETERS: List of messages
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# RETURNS: Nothing
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#===============================================================================
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_DEBUG () {
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[ "$DEBUG" == 0 ] && return
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for msg in "$@"; do
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printf 'D> %s\n' "$msg"
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done
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}
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#=== FUNCTION ================================================================
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# NAME: _usage
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# DESCRIPTION: Reports usage; always exits the script after doing so
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# PARAMETERS: 1 - the integer to pass to the 'exit' command
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# RETURNS: Nothing
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#===============================================================================
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_usage () {
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local -i result=${1:-0}
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cat >$STDOUT <<-endusage
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${SCRIPT} - version: ${VERSION}
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Usage: ./${SCRIPT} [-h] [-v] [-d {0|1}] [-D] [-l N] item
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Attempts to repair an IA item where the upload has failed for some reason.
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Options:
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-h Print this help
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-v Run in verbose mode where more information is
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reported. Default is off.
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-d 0|1 Dry run: -d 1 (the default) runs the script in dry-run
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mode where nothing is changed but the actions that
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will be taken are reported; -d 0 turns off dry-run
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mode and the actions will be carried out.
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-D Run in debug mode where a lot more information is
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reported
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-l N Control the number of shows that can be uploaded at
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once. The range is 1 to $DEFLIMIT.
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Arguments:
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item The item in the form 'hpr1234'
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endusage
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exit "$result"
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}
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# }}}
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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#
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# Directories and files
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#
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LOGS="$BASEDIR/logs"
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LOGFILE="$LOGS/$SCRIPT.log"
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#
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# Constants
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#
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DEFLIMIT=20
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#
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# Process options
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#
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while getopts :d:Dhl:v opt
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do
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case "${opt}" in
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D) DEBUG=1;;
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d) DRYRUN=$OPTARG;;
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h) _usage 0;;
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l) LIMIT=$OPTARG;;
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v) VERBOSE=1;;
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*) echo "** Unknown option"
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_usage 1;;
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esac
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done
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shift $((OPTIND - 1))
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#
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# Set option defaults and check their values
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#
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VERBOSE=${VERBOSE:-0}
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DRYRUN=${DRYRUN:-1}
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if [[ $DRYRUN -ne 0 && $DRYRUN -ne 1 ]]; then
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echo "** Use '-d 0' or '-d 1'"
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_usage 1
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fi
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[[ $VERBOSE -eq 1 && $DRYRUN -eq 1 ]] && echo "Dry run mode"
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DEBUG=${DEBUG:-0}
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[[ $DEBUG -eq 1 ]] && coloured 'yellow' "Debug mode"
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LIMIT=${LIMIT:-$DEFLIMIT}
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if [[ $LIMIT -lt 1 || $LIMIT -gt $DEFLIMIT ]]; then
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echo "** Use '-l 1' up to '-l $DEFLIMIT' or omit the option"
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_usage 1
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fi
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#
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# Should have one argument
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#
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if [[ $# != 1 ]]; then
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coloured 'red' "Missing argument"
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_usage 1
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fi
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item="${1}"
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#
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# Ensure item spec is correctly formatted
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#
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if [[ $item =~ hpr([0-9]+) ]]; then
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printf -v item 'hpr%04d' "${BASH_REMATCH[1]}"
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else
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coloured 'red' "Incorrect show specification: $item"
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coloured 'yellow' "Use 'hpr9999' format"
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exit 1
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fi
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_DEBUG "Parsed item: $item"
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#
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# Declarations
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#
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declare -A fcache
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declare -A iacache
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declare -a missed
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#
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# Scan the directory 'UPLOADS' where files for upload to the IA are stored and
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# collect everything for this item (show).
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#
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# See the `find' pipeline at the end of the loop which selects only files, not
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# directories. It outputs the last change time and the full file path, sorts
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# on the time, then removes it. This ensures we process the files in time
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# order rather than alphabetic order of their names.
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#
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# TODO: This algorithm is from another script and is not needed here. The
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# order of processing is irrelevant here so simplify the 'find' and the loop.
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# We are only looking for the 'item' specified by the argument, not other
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# ones.
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#
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while read -r path; do
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relpath="${path#"$UPLOADS"/}"
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item="${relpath:0:7}"
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[[ $VERBOSE -eq 1 ]] && echo "Found $path"
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_DEBUG "Path: $path"
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_DEBUG "Relative path: $relpath"
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_DEBUG "IA item: $item"
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if ! exists_in fcache "$relpath"; then
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# shellcheck disable=SC2034
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fcache[$relpath]=1
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fi
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done < <(find "$UPLOADS" -type f -regextype posix-extended \
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-regex ".*$item.*" -printf "%CY%Cm%Cd%CH%CM%CS %p\n" | sort | cut -f2 -d' ')
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#
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# Did we find anything?
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#
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if [[ ${#fcache[@]} -eq 0 ]]; then
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coloured 'red' "No files found for item $item in $UPLOADS"
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coloured 'red' "Can't continue"
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exit 1
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fi
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#
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# Look to see if there are any tasks queued for this show on the IA servers.
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# If there are we can't continue.
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#
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# TODO: This could be a loop waiting for tasks to complete rather than
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# aborting and asking to be rerun.
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#
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tasks=$(queued_tasks "$item")
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if [[ $tasks -gt 0 ]]; then
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coloured 'red' \
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"Item $item still has $tasks unfinished $(ngettext task tasks "$tasks")"
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coloured 'red' "Allow time for task(s) to finish and try again later"
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exit 1
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fi
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#
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# Interrogate the IA for the required item contents. If it returns True we can
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# collect its contents, otherwise we can't proceed. The file 'TMP1' contains
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# just a simple list of the files on the IA relating to this item.
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#
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if ia list "$item" > "$TMP1"; then
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while read -r iafile; do
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# shellcheck disable=SC2034
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iacache[$iafile]=1
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done < "$TMP1"
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else
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coloured 'red' "Item $item is not in the IA"
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coloured 'red' "Can't continue"
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exit 1
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fi
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#
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# Look through the list of files we found and detect any not on the IA
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#
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for path in "${!fcache[@]}"; do
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if ! exists_in iacache "$path"; then
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missed+=("$path")
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fi
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done
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#
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# Counters and defaults for the loop
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#
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retry_threshold=5
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sleeptime=20
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failures=0
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upload_count=0
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#
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# If there are missed files we can report what we'd be doing or do it,
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# otherwise we have nothing to do.
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#
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if [[ ${#missed[@]} -eq 0 ]]; then
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coloured 'green' "All expected files for item $item are on the IA"
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else
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mcount="${#missed[@]}"
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coloured 'red' "There $(ngettext "is 1 missing file" "are $mcount missing files" "$mcount"):"
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[[ $DRYRUN -eq 1 ]] && {
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coloured 'blue' "Dry run: Would have run the following command(s):"
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}
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for file in "${missed[@]}"; do
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cmd="Upload $item $UPLOADS/$file "
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cmd+="'$file' '--retries=5 --no-derive -H x-archive-keep-old-version:0'"
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if [[ $DRYRUN -eq 1 ]]; then
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coloured 'yellow' "$cmd"
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else
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retries=0
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printf 'Uploading %s\n' "$file"
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#
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# Run 'cmd'. If it succeeds then write to the log and loop for the
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# next missing file. If it fails enter the 'until' loop and report
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# and the problem. Count the number of times this is done, so it
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# doesn't loop forever. If we have reached the limit count this as
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# a failure and continue the parent loop (with the next missing
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# file). If we haven't retried enough yet, sleep for a while and
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# try again. The intention is to catch the case when an upload
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# times out. The 'ia' command is performing its own retries per
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# upload when the system is overloaded, but these are non-fatal.
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#
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until eval "$cmd"; do
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coloured 'red' "Failure when invoking the Upload command!"
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((retries++))
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printf '%s Failed to upload %s to the IA [%d]\n' \
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"$(date +%Y%m%d%H%M%S)" "$file" "$retries" >> "$LOGFILE"
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[ "$retries" -eq "$retry_threshold" ] && {
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((failures++))
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continue 2
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}
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sleep $sleeptime
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done # until eval ...
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echo "$(date +%Y%m%d%H%M%S) Uploaded $file to the IA" >> "$LOGFILE"
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fi
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#
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# Count actual uploads and dry-run ones the same
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#
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((upload_count++))
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#
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# Stop the missed file loop if we have reached the limiting number, in
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# dry-run and live mode
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#
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[[ $upload_count -eq $LIMIT ]] && {
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coloured 'blue' "Upload limit ($LIMIT) reached"
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break
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}
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done # for file in ...
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fi
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#
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# Summarise how many upload failures were detected
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#
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if [[ $failures -gt 0 ]]; then
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coloured 'red' \
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"There $(ngettext "was $failures upload failure" "were $failures upload failures" $failures)"
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coloured 'yellow' 'Run this script again to repeat the repair attemmpt'
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fi
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# vim: syntax=sh:ts=8:sw=4:ai:et:tw=78:fo=tcrqn21:fdm=marker
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