525 lines
16 KiB
Plaintext
525 lines
16 KiB
Plaintext
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#!/bin/bash -
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#===============================================================================
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#
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# FILE: do_pandoc
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#
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# USAGE: ./do_pandoc [option] <epno>
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#
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# DESCRIPTION: Performs an "intelligent" Pandoc run on various types of show
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# notes. Converts various markup formats into HTML. Treate plain
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# text as Markdown, though this depends on the prior editing
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# step doing the right thing. Handles pictures and other assets
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# in plain text shows that have them - this is done by the edit
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# phase adding TT² macros and this script processing them with
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# 'tpage'.
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# Version 0:2:5 (released 2022-12-04) has not yet been fully
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# tested. Seems reliable 2023-03-03.
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#
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# OPTIONS: ---
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# REQUIREMENTS: ---
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# BUGS: ---
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# NOTES: 2021-04-03: removed the TOC option
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# 2021-11-07: Added --strip-comments to the HTML snippet
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# generation stage
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# 2022-11-01: Big rewrite over the month. Refer to
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# do_pandoc_0.1.6 for the previous version since there have been
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# some big changes.
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# 2022-12-17: Ending reliance on shownotes.txt, and using
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# shownotes.json instead into the future. Some massive tidying
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# and rationalisation are still required.
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# 2023-03-03: If the title contained a quote then the previous
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# algorithm made bad YAML which caused the 'full' html to fail.
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# Fixed.
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# 2023-11-15: The 'prefix' setting is wrong. It needs another
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# 'hpr1234' directory level. This is needed because the
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# top-level stuff for the show is already in such a directory,
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# and while we have assets in a sub-directory we need to be
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# careful about collisions.
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#
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# AUTHOR: Dave Morriss (djm), Dave.Morriss@gmail.com
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# VERSION: 0.2.10
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# CREATED: 2016-08-16 15:34:30
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# REVISION: 2024-02-18 13:27:40
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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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VERSION='0.2.10'
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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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# {{{ Functions: -- _usage -- _DEBUG --
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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] [-D] shownumber
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Version: $VERSION
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Runs Pandoc against a particular show, choosing a format as
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defined by the declared format (in the file '.format').
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(In this version there is no method to force an explicit input format)
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Options:
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-h Print this help
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-d Select dry run mode
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-D Turn on debug mode with lots of extra output
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The default behaviour is now to access the '.format' file in the show
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directory.
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Arguments:
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shownumber
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Examples
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./${SCRIPT} -h
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./${SCRIPT} -d 2240
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./${SCRIPT} -D 2250
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endusage
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exit
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}
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#=== FUNCTION ================================================================
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# NAME: _DEBUG
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# DESCRIPTION: Writes one or more message lines 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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# }}}
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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#
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# Formats offered by the web form on the HPR site:
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#
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# Keyword Explanation
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# ------- -----------
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# plain_text Plain text
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# html5 HTML5 (preferred)
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# markdown_standard Markdown (standard)
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# Markdown_GitHub Markdown (GitHub flavoured)
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# Markdown_Pandoc Markdown (Pandoc flavoured)
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# restructured_text RestructuredText
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# txt2tags txt2tags
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#
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#
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# Hash to perform translation from declared format to Pandoc "-from" value
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#
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# {{{ -- 'lookup' hash --
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declare -A lookup
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lookup[plain_text]='markdown-implicit_figures'
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lookup[html5]='html'
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lookup[markdown_standard]='markdown_strict'
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lookup[Markdown_GitHub]='gfm' # Extensions are limited
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lookup[Markdown_Pandoc]='markdown-implicit_figures'
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lookup[restructured_text]='rst'
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lookup[txt2tags]='t2t'
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# }}}
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#
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# Hash for options when generating standalone readable HTML
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#
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# (The 'smart' extension is only applicable to markdown, commonmark, latex,
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# mediawiki, org, rst, twiki; we want to turn it off to remove smart quotes)
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#
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# {{{ -- 'options' hash --
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declare -A options
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options[plain_text]='-smart'
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options[html5]=''
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options[markdown_standard]='+yaml_metadata_block'
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options[Markdown_GitHub]=''
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options[Markdown_Pandoc]='-smart+yaml_metadata_block'
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options[restructured_text]='-smart'
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options[txt2tags]=''
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# }}}
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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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 "$JQ" ] || { echo "Program 'jq' was not found"; exit 1; }
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# YQ=$(command -v yq)
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# [ -n "$YQ" ] || { echo "Program 'yq' was not found"; exit 1; }
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#
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# Process options first
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#
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while getopts :dDh opt
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do
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case "${opt}" in
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d) DRYRUN=1;;
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D) DEBUG=1;;
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h) _usage;;
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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 $((OPTIND - 1))
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#
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# Default options if not provided
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#
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DEBUG=${DEBUG:-0}
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DRYRUN=${DRYRUN:-0}
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#
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# Check there's an argument after removing any options. Abort if not
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#
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if [[ $# -ne 1 ]]; then
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_usage
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fi
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#
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# Declare variables for later
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# TODO: Is this necessary?
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#
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declare SHOWID FROM POPTIONS
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#
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# Make the explicit show id, catering for leading zeroes (belt & braces)
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#
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printf -v SHOWID 'hpr%04d' "$1"
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#
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# Make temporary files and set traps to delete them
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#
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TMP1=$(mktemp) || {
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echo "$SCRIPT: ${red}creation of temporary file failed!${reset}"
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exit 1
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}
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TMP2=$(mktemp) || {
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echo "$SCRIPT: ${red}creation of temporary file failed!${reset}"
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exit 1
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}
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TMP3=$(mktemp) || {
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echo "$SCRIPT: ${red}creation of temporary file failed!${reset}"
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exit 1
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}
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trap 'cleanup_temp $TMP1 $TMP2 $TMP3' SIGHUP SIGINT SIGPIPE SIGTERM EXIT
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#
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# Paths to files
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#
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# ------------------------------------------------------------------------------
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# Main directory
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BASENAME="$HOME/HPR/Show_Submission"
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# JSON to YAML Perl script
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J2Y="$BASENAME/author_title.pl"
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[ -e "$J2Y" ] || { echo "Program '$J2Y' was not found"; exit 1; }
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# The notes for all shows are here
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SHOWNOTES="$BASENAME/shownotes"
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# Notes for this show are here
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SHOWDIR="$SHOWNOTES/$SHOWID"
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# Paths to all files already created or being created here
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#RAWFILE="$SHOWDIR/shownotes.txt"
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JSONFILE="$SHOWDIR/shownotes.json"
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FMTFILE="$SHOWDIR/.format"
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PICLIST="$SHOWDIR/.pictures"
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STATUS="$SHOWDIR/.status"
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EXTRACT="$SHOWDIR/${SHOWID}.out"
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FULLHTML="$SHOWDIR/${SHOWID}_full.html"
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HTML="$SHOWDIR/${SHOWID}.html"
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# TT² macros and paths for adding pictures
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PICTPL="$BASENAME/pic_definitions.tpl"
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MANIFEST="$SHOWDIR/.pictures.mf" # From do_pictures
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# ------------------------------------------------------------------------------
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#
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# The partial URL for pictures on the HPR site
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#
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BASEURL='https://hackerpublicradio.org/eps/'
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#{{{ --- Obsolete 2022-12-17 ---
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#
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# Make a metadata file by parsing the raw data file fields with awk. Save it
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# in a temporary file.
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#
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# See the original do_pandoc_0.1.6 for the extended comments that led to this
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# design. We were trying to make acceptable YAML, but ended up extracting
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# metadata from the result.
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# ----
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# TODO: 2022-12-01 Rationalise all of this; it's full of debris from previous
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# attempts to solve the problem of passing metadata to Pandoc.
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# ----
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#
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# awk -f - "$RAWFILE" > "$TMP1" <<'ENDAWK'
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# BEGIN {print "---"}
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# /^Title:/ && got_title == 0 {
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# sub(/^Title:\s+/,"")
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# printf "#title: %s\n",$0
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# gsub(/'/,"''")
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# printf "title: '%s'\n",$0
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# got_title = 1
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# }
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# /^Host_Name:/ && got_author == 0 {
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# sub(/^Host_Name:\s+/,"")
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# printf "#author: %s\n",$0
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# gsub(/'/,"''")
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# printf "author: '%s'\n",$0
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# got_author = 1
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# }
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# END {print "---"}
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# ENDAWK
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#}}}
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#
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# Use 'jq' to parse the JSON and make the metadata (in the form of YAML)
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# needed for Pandoc
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#
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# Non-YAML alternative - not chosen
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#jqprog="@text \"author: \(.host.Host_Name)\ntitle: \(.episode.Title)\""
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#
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# Testing another formatter (Journal 2023-03-03)
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#jqprog="@sh \"---\nauthor: \(.host.Host_Name)\ntitle: \(.episode.Title)\n---\""
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# Added quotes around the generated strings (2023-03-31)
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# jqprog="@text \"---\nauthor: \(.host.Host_Name)\ntitle: \(.episode.Title)\n---\""
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# Moved to 'yq' 2023-04-01
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# jqprog="@text \"---\nauthor: '\(.host.Host_Name)'\ntitle: '\(.episode.Title)'\n---\""
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# jq -r "$jqprog" "$JSONFILE" > "$TMP1"
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# On 2023-10-01 wrote a Perl JSON to YAML generator just for these two
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# elements. It's called 'author_title.pl'
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# yqprog='{author:.host.Host_Name,title:.episode.Title}'
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# ( echo "---"; $YQ -y "$yqprog" "$JSONFILE"; echo "---"; ) > "$TMP1"
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$J2Y "$JSONFILE" "$TMP1"
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_DEBUG "YAML:" "$(cat "$TMP1")"
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#
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# Check the main output file from do_parse exists
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#
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if [[ ! -e $EXTRACT ]]; then
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echo "$SCRIPT: ${red}File not found: $EXTRACT${reset}"
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exit 1
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fi
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#
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# Get the format or fail with an error
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#
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if [[ -e $FMTFILE ]]; then
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FORMAT=$(cat "$FMTFILE")
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else
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# TODO: Should we default to something rather than abort?
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echo "$SCRIPT: ${red}Could not find declared format (.format file)${reset}"
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echo "${yellow}Has do_parse been run? If so try and fix the .format file.${reset}"
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exit
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fi
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#
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# Need to match plain text and Markdown variants when deciding to use the
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# manifest file and 'tpage'
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#
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FMTRE='^(plain_text|[Mm]arkdown_)'
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#
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# Determine if there are pictures
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#
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if [[ -e $PICLIST ]]; then
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hasPictures=1
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else
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hasPictures=0
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fi
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#
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# Here we use the declared format to determine what to do.
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#
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# This code now blocks HTML->HTML processing since it just confuses matters.
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# The files hprNNNN.out and hprNNNN.html are linked to one another, so editing
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# the former will edit the latter in preparation for uploading if there are
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# changes that need to be made. See the journal discussion for 2018-05-24.
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# ---
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# TODO: 2022-12-01 If the notes are HTML but declared as something else then
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# this check will not work. Trouble is, parse_JSON will have worked this out
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# but not saved it so we can't avoid running Pandoc on HTML in this case.
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# ---
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# TODO: 2022-12-01 Look at resolving this in parse_JSON?
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# ---
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#
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if [[ $FORMAT == 'html5' ]]; then
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echo "${red}Running Pandoc on HTML is not allowed${reset}"
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echo "${yellow}Run do_edit to edit as necessary and do_browser to view${reset}"
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exit
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elif [[ $FORMAT == 'plain_text' ]]; then
|
||
|
|
echo "${yellow}Format chosen is plain text${reset}"
|
||
|
|
if [[ $hasPictures -eq 0 ]]; then
|
||
|
|
echo "${yellow}This will be treated as Markdown${reset}"
|
||
|
|
else
|
||
|
|
echo "${yellow}This will be treated as Markdown and will need special action${reset}"
|
||
|
|
echo "${yellow}since there are pictures${reset}"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
FROM=${lookup[$FORMAT]}
|
||
|
|
POPTIONS=${options[$FORMAT]}
|
||
|
|
echo "${green}Will process $FORMAT with 'pandoc -f ${FROM}'${reset}"
|
||
|
|
echo "${yellow}Options chosen for --standalone are '${POPTIONS}'${reset}"
|
||
|
|
|
||
|
|
#
|
||
|
|
# Only for plain text notes, process pictures for the HTML we'll be adding to
|
||
|
|
# the database.
|
||
|
|
#
|
||
|
|
# We need the following things:
|
||
|
|
# - The notes to be plain text format
|
||
|
|
# - Some pictures
|
||
|
|
# - Files written by do_parse and do_pictures:
|
||
|
|
# - .assets (not used here)
|
||
|
|
# - .pictures (were previously used here, but no longer)
|
||
|
|
# - .pictures.mf (needed by the TT² macros)
|
||
|
|
# - .pictures.tt2 (the TT² macro calls - already edited into the notes)
|
||
|
|
# - pic_definitions.tpl (macro definitions, common to all shows)
|
||
|
|
# - Not to be in dry run mode; if we are we just report intentions
|
||
|
|
#
|
||
|
|
if [[ $DRYRUN -eq 0 ]]; then
|
||
|
|
# if [[ $FORMAT == 'plain_text' && -e $MANIFEST ]]; then
|
||
|
|
if [[ $FORMAT =~ $FMTRE && -e $MANIFEST ]]; then
|
||
|
|
#
|
||
|
|
# Deal with pictures using the TT² macros
|
||
|
|
#
|
||
|
|
_DEBUG "Processing TT² inclusions"
|
||
|
|
|
||
|
|
# Make a picture manifest with a header
|
||
|
|
awk 'BEGIN{print "file : thumb"}{p1=$0; getline p2; printf "%s : %s\n",p1,p2}' \
|
||
|
|
"$MANIFEST" > "$TMP2"
|
||
|
|
|
||
|
|
_DEBUG "Picture list:" "$(cat "$TMP2")" "---" \
|
||
|
|
"BASEURL=${BASEURL}${SHOWID}/" \
|
||
|
|
"EXTRACT=$EXTRACT" \
|
||
|
|
"Extract file contents:" "$(cat "$EXTRACT")" "---"
|
||
|
|
|
||
|
|
# Run the macros on the notes to make $TMP3 for Pandoc
|
||
|
|
tpage --pre_process="$PICTPL" \
|
||
|
|
--define "piclist=$TMP2" \
|
||
|
|
--define "prefix=${BASEURL}${SHOWID}/${SHOWID}/" \
|
||
|
|
"$EXTRACT" > "$TMP3"
|
||
|
|
|
||
|
|
_DEBUG "Processed by tpage" "$(cat "$TMP3")" "---"
|
||
|
|
else
|
||
|
|
# Not plain text or a Markdown variant and no pictures, so put the
|
||
|
|
# notes in $TMP3 where Pandoc will look for them
|
||
|
|
cat "$EXTRACT" > "$TMP3"
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
#
|
||
|
|
# We would not have used TT² unless the notes were plain text (or
|
||
|
|
# a Markdown variant) and there were pictures
|
||
|
|
#
|
||
|
|
# if [[ $FORMAT == 'plain_text' && -e $MANIFEST ]]; then
|
||
|
|
if [[ $FORMAT =~ $FMTRE && -e $MANIFEST ]]; then
|
||
|
|
echo "${yellow}Would have prepared TT² code for pandoc${reset}"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
#
|
||
|
|
# Generate an HTML snippet for adding to the database.
|
||
|
|
# (Note 2021-11-24: Added --ascii option.)
|
||
|
|
#
|
||
|
|
if [[ $DRYRUN -eq 0 ]]; then
|
||
|
|
# shellcheck disable=SC2086
|
||
|
|
pandoc -f "$FROM"-smart -t html5 --ascii --no-highlight --strip-comments \
|
||
|
|
"$TMP3" -o "$HTML" # $EXTRAS
|
||
|
|
RES=$?
|
||
|
|
|
||
|
|
if [[ $RES -eq 0 ]]; then
|
||
|
|
echo "$SCRIPT: ${green}Created shownotes/$SHOWID/${HTML##*/}${reset}"
|
||
|
|
else
|
||
|
|
echo "$SCRIPT: ${red}Oops! Something went wrong! (line $LINENO)${reset}"
|
||
|
|
echo "${yellow}$SCRIPT: Aborting now${reset}"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
echo "${yellow}Would have run pandoc to make HTML for upload${reset}"
|
||
|
|
fi
|
||
|
|
|
||
|
|
#
|
||
|
|
# Make HTML for proof reading. All pictures referenced are now on the HPR
|
||
|
|
# server (we ran 'do_asset_upload'), so we want to refer to them here.
|
||
|
|
#
|
||
|
|
# File $TMP2 contains the .pictures.mf contents with a header line; and it
|
||
|
|
# contains data for the macros. It was created when we prepared the main HTML
|
||
|
|
# for the database. We use $BASEURL again here because we want to reference
|
||
|
|
# the pictures on the server.
|
||
|
|
#
|
||
|
|
# We use the awk-formatted file (now yq-formatted) in $TMP1 from earlier to do
|
||
|
|
# this. At the end TMP3 contains Markdown for Pandoc.
|
||
|
|
#
|
||
|
|
if [[ $DRYRUN -eq 0 ]]; then
|
||
|
|
# if [[ $FORMAT == 'plain_text' && -e $MANIFEST ]]; then
|
||
|
|
if [[ $FORMAT =~ $FMTRE && -e $MANIFEST ]]; then
|
||
|
|
tpage --pre_process="$PICTPL" \
|
||
|
|
--define "piclist=$TMP2" \
|
||
|
|
--define "prefix=${BASEURL}${SHOWID}/${SHOWID}/" \
|
||
|
|
"$EXTRACT" > "$TMP3"
|
||
|
|
else
|
||
|
|
cat "$EXTRACT" > "$TMP3"
|
||
|
|
fi
|
||
|
|
|
||
|
|
#
|
||
|
|
# Generate complete HTML that we can proofread. We need metadata for this
|
||
|
|
# stand-alone HTML which is in the form of YAML in this version.
|
||
|
|
#
|
||
|
|
# ----------------------------------------------------------------------
|
||
|
|
# Original options below when using 'awk' to parse shownotes.txt:
|
||
|
|
# --metadata="$(sed -n '/^#author:/{s/#//;p}' "$TMP1")" \
|
||
|
|
# --metadata="$(sed -n '/^#title:/{s/#//;p}' "$TMP1")" \
|
||
|
|
#
|
||
|
|
# shellcheck disable=SC2086
|
||
|
|
pandoc -f ${FROM}${POPTIONS} -t html5 --ascii \
|
||
|
|
--standalone --template=hpr.html5 --no-highlight \
|
||
|
|
-c https://hackerpublicradio.org/css/hpr.css \
|
||
|
|
--metadata-file="$TMP1" -o "$FULLHTML" "$TMP3"
|
||
|
|
RES=$?
|
||
|
|
|
||
|
|
if [[ $RES -eq 0 ]]; then
|
||
|
|
echo "$SCRIPT: ${green}Created shownotes/$SHOWID/${FULLHTML##*/}${reset}"
|
||
|
|
else
|
||
|
|
echo "$SCRIPT: ${red}Oops! Something went wrong making the full HTML! (line $LINENO)${reset}"
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
# Dry run
|
||
|
|
echo "${yellow}Would have run pandoc to make HTML for proof reading${reset}"
|
||
|
|
fi
|
||
|
|
|
||
|
|
#
|
||
|
|
# Set the status for this show
|
||
|
|
#
|
||
|
|
if [[ $DRYRUN -eq 0 ]]; then
|
||
|
|
echo "converted" >> "$STATUS"
|
||
|
|
fi
|
||
|
|
|
||
|
|
exit
|
||
|
|
|
||
|
|
# vim: syntax=sh:ts=8:sw=4:ai:et:tw=78:fo=tcrqn21:fdm=marker
|