125 lines
2.4 KiB
Bash
Executable file
125 lines
2.4 KiB
Bash
Executable file
#!/bin/sh
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set -eu
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set -x
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usage() {
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printf "Usage: %s [-l DEBUG_LEVEL] [-f URL] [-h]\n" "$0"
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}
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help() {
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cat << EOH
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SYNOPSIS
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$0 [-l DEBUG_LEVEL] [-f FEED_URL] [-h]
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DESCRIPTION
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$0 generates a list of my personal blog posts.
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OPTIONS
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-h Show this help
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-l debug|info|notice|warning|error
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Debug level
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-f URL
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URL of the RSS Feed
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EOH
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}
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on_interrupt() {
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log -l notice ""
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log -l notice "Process aborted!"
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exit 130
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}
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main() {
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while getopts "f:l:h" option; do
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case "${option}" in
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h) help; exit 0;;
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l) LOG_VERBOSE="$OPTARG";;
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f) RSS_URL="$OPTARG";;
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?) log -l error "$(usage)"; exit 1;;
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esac
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done
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key=0
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is_first=1
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title=
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link=
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wget -q -O - "$RSS_URL" \
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| grep -E "<(title|link)" \
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| grep -v "<link>" \
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| grep -v "gemini:" \
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| while read line; do
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if [ $((key%2)) -eq 1 ]; then
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title="$(printf "$line" | sed 's/<title><!\[CDATA\[//g' | sed 's/\]\]><\/title>//g')"
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else
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link="$(printf "$line" | cut -d'"' -f2)"
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if [ $is_first -eq 1 ]; then
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is_first=0
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else
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printf "* [%s](%s)\n" "$title" "$link"
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fi
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fi
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key=$((key+1))
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done
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exit 0
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}
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log() {
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LOG_VERBOSE="${LOG_VERBOSE:-info}"
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LEVEL=info
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TIME=
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while getopts "tl:" option; do
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case "${option}" in
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l) LEVEL="$OPTARG"; shift $((OPTIND-1));;
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t) TIME="$(printf "[%s] " "$(date +'%Y-%m-%dT%H:%M:%S.%s')")"; shift $((OPTIND-1));;
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*) exit 1;;
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esac
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done
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if [ -t 2 ] && [ -z "${NO_COLOR-}" ]; then
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case "${LEVEL}" in
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debug) COLOR="$(tput setaf 3)";;
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notice) COLOR="$(tput setaf 4)";;
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warning) COLOR="$(tput setaf 5)";;
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error) COLOR="$(tput setaf 1)";;
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*) COLOR="$(tput sgr0)";;
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esac
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fi
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case "${LEVEL}" in
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debug) LEVEL=100;;
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notice) LEVEL=250;;
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warning) LEVEL=300;;
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error) LEVEL=400;;
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*) LEVEL=200;;
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esac
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case "${LOG_VERBOSE}" in
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debug) LOG_VERBOSE_VALUE=100;;
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notice) LOG_VERBOSE_VALUE=250;;
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warning) LOG_VERBOSE_VALUE=300;;
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error) LOG_VERBOSE_VALUE=400;;
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*) LOG_VERBOSE_VALUE=200;;
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esac
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if [ $LEVEL -ge $LOG_VERBOSE_VALUE ]; then
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printf "%s\n" "$*" | while IFS='' read -r LINE; do
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printf "%s%s%s\n" "${COLOR:-}" "${TIME:-}" "$LINE" >&2
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done
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fi
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}
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trap on_interrupt INT
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main "$@"
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