303 lines
7.8 KiB
Bash
Executable File
303 lines
7.8 KiB
Bash
Executable File
#!/bin/bash -
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#===============================================================================
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#
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# FILE: do_state_change
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#
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# USAGE: ./do_state_change [-h] [-D] [-m] [-s] [-Y] <epno>
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#
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# DESCRIPTION: Script to be invoked via symlinks to perform related tasks
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# relating to show states.
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#
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# - When called as 'do_reserve' toggles a '.reserved' marker.
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# - When called as 'do_block' creates the directory if necessary
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# and makes a dummy 'shownotes.json' as well as a file called
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# '.dummy'. Doesn't delete any of this since other software
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# will tidy things.
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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: 2021-06-05 22:04:26
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# REVISION: 2024-02-06 15:36:02
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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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SCRIPT=${0##*/}
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#DIR=${0%/*}
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# shellcheck disable=SC2034
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VERSION="0.0.6"
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STDOUT="/dev/fd/2"
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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 "$SCRIPT: Unable to source functions"; exit 1; }
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# shellcheck source=/home/cendjm/bin/function_lib.sh
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source "$LIB"
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#
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# Colour codes
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#
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define_colours
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#=== FUNCTION ================================================================
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# NAME: _usage
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# DESCRIPTION: Report usage
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# PARAMETERS: None
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# RETURNS: Nothing
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#===============================================================================
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_usage () {
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cat >$STDOUT <<-endusage
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Usage: ./${SCRIPT} [-h] [-D] [-m] [-s] [-Y] shownumber
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Version: $VERSION
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Script to be invoked via symlinks to perform related tasks relating to show states
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Options:
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-h Print this help
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-D Run in debug mode where a lot more information is
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reported
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-m Monochrome mode - no colours
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-s Silent mode, output less text about actions
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-Y Assume 'Yes' in answer to the prompt
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Arguments:
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shownumber
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Examples
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./${SCRIPT} -h
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./${SCRIPT} -m 3112
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./${SCRIPT} -D 3112
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./${SCRIPT} 3112
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./${SCRIPT} -Y 3112
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endusage
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exit
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}
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#=== FUNCTION ================================================================
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# NAME: exists
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# DESCRIPTION: Determines wheher all paths given as arguments exist
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# PARAMETERS: List of paths
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# RETURNS: True if they all exist, otherwise false
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#===============================================================================
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exists () {
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for path in "$@"; do
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if [[ ! -e $path ]]; then
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return 1
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fi
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done
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return
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}
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#=== FUNCTION ================================================================
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# NAME: _DEBUG
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# DESCRIPTION: Writes one or more messages if in DEBUG mode. Each argument is
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# seen as a message and is written on a separate line.
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# References the global variable 'DEBUG' which is expected to be
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# True if debug output is wanted.
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# PARAMETERS: List of messages
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# RETURNS: Nothing
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#===============================================================================
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_DEBUG () {
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[ "$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: _verbose
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# DESCRIPTION: Writes a message in verbose mode
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# PARAMETERS: $1 message
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# RETURNS: Nothing
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#===============================================================================
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_verbose () {
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[ "$VERBOSE" -eq 0 ] && return
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for msg in "$@"; do
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printf '%s\n' "$msg"
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done
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}
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#=== FUNCTION ================================================================
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# NAME: _silent
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# DESCRIPTION: Writes a message unless in silent mode
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# PARAMETERS: $1 message
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# RETURNS: Nothing
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#===============================================================================
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_silent () {
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[ "$SILENT" -eq 1 ] && return
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for msg in "$@"; do
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printf '%s\n' "$msg"
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done
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}
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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#
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# Paths to files
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#
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BASENAME="$HOME/HPR/Show_Submission"
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TPL="$BASENAME/shownotes/hpr%d/%s"
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#
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# Option defaults
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#
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COLOUR=1 # use colours by default
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YES=0 # prompt for yes/no by default
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TOGGLE=0 # marker can't be removed by default
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#
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# Process options
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#
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while getopts :hDmsY opt
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do
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case "${opt}" in
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h) _usage;;
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D) DEBUG=1;;
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m) COLOUR=0;;
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s) SILENT=1;;
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Y) YES=1;;
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?) echo "$SCRIPT: Invalid option; aborting"; exit 1;;
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esac
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done
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shift $((OPTIND - 1))
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DEBUG=${DEBUG:-0}
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SILENT=${SILENT:-0}
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#
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# Cancel colours if requested
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#
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if [[ $COLOUR -eq 0 ]]; then
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undefine_colours
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fi
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#
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# Determine actions depending on how the script was called. Save filenames in
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# an array.
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#
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declare -a MK MFILES
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case "${SCRIPT#*/}" in
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do_reserve)
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MK+=('.reserved')
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state='reserved'
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TOGGLE=1
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;;
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do_block)
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echo "Blocking of pending shows is not needed any more."
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echo "See Journal for details (2024-02-06)"
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exit
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# MK+=('shownotes.json')
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# MK+=('.dummy')
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# state='blocked'
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# TOGGLE=0
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;;
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*)
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echo "Don't call this script directly; use one of its soft links"
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echo "D> $0 $*"
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exit 1
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;;
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esac
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#
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# Check the argument after any options
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#
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if [[ $# -ne 1 ]]; then
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echo "$SCRIPT: ${red}Usage: $SCRIPT shownumber${reset}"
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exit
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fi
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show="$1"
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#
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# I used 'hpr4065' by mistake today, so we need to check the show specification
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#
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if [[ $show =~ ^(hpr)?([0-9]+)$ ]]; then
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printf -v show '%04d' "${BASH_REMATCH[2]}"
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else
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echo "$SCRIPT: ${red}Invalid show specification: $show${reset}"
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exit
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fi
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#
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# Build the path(s) to the marker(s) in an array
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#
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# shellcheck disable=SC2059
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for fn in "${MK[@]}"; do
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printf -v path "$TPL" "$show" "$fn"
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MFILES+=("$path")
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done
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#
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# Path to the show directory
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#
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SHOWDIR="$BASENAME/shownotes/hpr${show}"
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#
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# Report the settings in debug mode
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#
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_DEBUG "Called as = $0" \
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"Show number = $show" \
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"MK = ${MK[*]}" \
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"state = $state" \
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"TOGGLE = $TOGGLE" \
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"MFILES = ${MFILES[*]}" \
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"SHOWDIR = $SHOWDIR"
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#
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# We need a show directory. If it doesn't exist then we'll create it because
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# other scripts will use it.
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#
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if [[ ! -d $SHOWDIR ]]; then
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echo "${red}There is no directory for show $show${reset}"
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#
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# If the -Y option was not chosen ask with 'yes_no'. It -Y was chosen
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# we're to go ahead regardless. This relies on the fact that Bash
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# "short-circuits" logical expressions like this.
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#
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if [[ $YES -eq 1 ]] || yes_no 'Create directory? %s ' 'N'; then
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mkdir "$SHOWDIR"
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_silent "${green}Directory created for show $show${reset}"
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else
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_silent "${yellow}Not changed${reset}"
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fi
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fi
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#
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# If the marker exists and we can toggle it, we'll do so. If no toggle, we
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# report the marker presence or set it as appropriate.
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#
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if exists "${MFILES[@]}"; then
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if [[ $TOGGLE -eq 1 ]]; then
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_silent "${yellow}Show $show has a '$state' marker${reset}"
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if [[ $YES -eq 1 ]] || yes_no 'Remove marker? %s ' 'N'; then
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rm -f "${MFILES[@]}"
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_silent "${green}Removed '$state' marker for show $show${reset}"
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else
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_silent "${yellow}Not changed${reset}"
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fi
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else
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echo "${red}Show $show is already marked '$state'${reset}"
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fi
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else
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_silent "${yellow}Show $show has no '$state' marker${reset}"
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touch "${MFILES[@]}"
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_silent "${green}Marked show $show as '$state'${reset}"
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fi
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exit
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# vim: syntax=sh:ts=8:sw=4:ai:et:tw=78:fo=tcrqn21
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