186 lines
6.2 KiB
Bash
Executable File
186 lines
6.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2020 nytpu
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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# change configuration variables here to suit you
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### be sure to also change the header and footer in build_entries! ###
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make_globals() {
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global_title="my gemlog"
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global_description="a gemlog about gemlogs"
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global_url="gemini://example.com/gemlog/" # link to base url of gemlog
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global_author="example"
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global_author_email="you@example.com"
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global_author_url="gemini://example.com/" # homepage of author
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global_license="CC BY 4.0"
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gemlog_feed="atom.xml" # filename of the atom feed
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number_of_feed_articles="50" # maximum number of posts added to atom feed
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feed_base_url="gemini://example.com/gemlog/" # base url that the feed is hosted at
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feed_web_url="https://example.com/files/" # base url that the feed is hosted at on the web
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index="index.gmi" # main page of gemlog, not recommended to change
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use_year_divider=true # separate posts from different years with a heading?
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# these 2 are exclusive, and use_month_divider_nl takes priority if both are set
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use_month_divider_nl=true # separate posts from different months with a newline?
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use_month_divider_hd=false # separate posts from different months with a heading?
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gemlog_sh_link="https://tildegit.org/nytpu/gemlog.sh" # link to the utility, you should change this if you've made substantial non-configuration changes
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# don't change these
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date_format_8601="+%Y-%m-%dT%H:%M:%S%:z" # *formal* ISO-8601 format including time zone
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date_format_8601_timeless="+%Y-%m-%dT12:00:00%:z" # *formal* ISO-8601 format with fixed preset time
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monthnames=( "invalid" "January" "February" "March" "April" "May" "June" "July" "August" "September" "October" "November" "December" )
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}
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get_post_title() {
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cat "$1" | perl -lne 's/#{1,3}\s+(.*)/\1/ or next; print; exit'
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}
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make_atom() {
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echo "Bulding atom feed..."
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atomfile="$gemlog_feed.$RANDOM"
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while [[ -f $atomfile ]]; do atomfile="$gemlog_feed.$RANDOM"; done
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{
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pubdate=$(date "$date_format_8601")
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cat << EOF
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<?xml version="1.0" encoding="utf-8"?>
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<feed xmlns="http://www.w3.org/2005/Atom">
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<title>$global_title</title>
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<subtitle>$global_description</subtitle>
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<link rel='self' href='$feed_base_url$gemlog_feed'/>
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<link rel='alternate' href='$global_url$index'/>
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<updated>$pubdate</updated>
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<author>
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<name>$global_author</name>
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<email>$global_author_email</email>
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<uri>$global_author_url</uri>
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</author>
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<id>$global_url</id>
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<generator uri='$gemlog_sh_link'>gemlog.sh</generator>
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<rights>© $global_author - $global_license</rights>
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EOF
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n=0
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while IFS='' read -r i; do
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((n >= $number_of_feed_articles)) && break
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printf "\n <entry>\n <title>"
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get_post_title "$i" | tr -d '\n'
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printf "</title>\n <id>$global_url${i#'./'}</id>\n"
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printf " <link rel='alternate' href='$global_url${i#'./'}'/>\n <updated>"
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echo "$i" | perl -ne '/^(\d{4}-\d{2}-\d{2}).*/; print $1' | date "$date_format_8601_timeless" -f - | tr -d '\n'
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# change or remove the <summary></summary> block if you want a different description or no description at all
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printf "</updated>\n <summary>You need a gemini client to view this post. If you have one installed, here is the link to the post: $global_url${i#'./'}</summary>\n </entry>\n"
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n=$(( n + 1 ))
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done < <(ls -r [[:digit:]]*.gmi)
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printf '</feed>'
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} 3>&1 >"$atomfile"
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mv "$atomfile" "$gemlog_feed"
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chmod 644 "$gemlog_feed"
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}
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build_entries() {
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echo "Building index..."
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indexfile="$index.$RANDOM"
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while [[ -f $indexfile ]]; do indexfile="$index.$RANDOM"; done
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{
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# header of the page (above the posts list)
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cat << 'EOF'
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```wow, alt text! wouldn't you love to help people with screenreaders too?
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┌──────────────────┐
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│ │
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│ YOUR │
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│ │
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│ ART │
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│ │
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│ HERE │
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│ │
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└──────────────────┘
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```
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it's my gemlog all right!
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EOF
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curyear=""
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curmonth=""
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while IFS='' read -r i; do
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post=$(basename $i)
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title=$(get_post_title "$i")
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pubdate=$(echo $i | perl -ne '/^(\d{4}-\d{2}-\d{2}).*/; print $1')
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newcuryear=$(echo $i | perl -ne '/^(\d{4})-\d{2}-\d{2}.*/; print $1')
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newcurmonth=$(echo $i | perl -ne '/^\d{4}-(\d{2})-\d{2}.*/; print $1')
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if [ "$newcuryear" != "$curyear" ] && $use_year_divider; then
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printf "\n\n## $newcuryear\n"
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curyear="$newcuryear"
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fi
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if [ "$newcurmonth" != "$curmonth" ]; then
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if $use_month_divider_nl; then
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printf "\n"
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elif $use_month_divider_hd; then
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printf "\n### ${monthnames[${newcurmonth#0}]}\n\n"
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fi
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curmonth="$newcurmonth"
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fi
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printf "=> $global_url$post $pubdate — $title\n"
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done < <(ls -r [[:digit:]]*.gmi)
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# footer of the page (below the list of posts)
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cat << EOF
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──────────────────
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=> / go home
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=> $feed_base_url$gemlog_feed this gemlog has an atom feed at: $feed_base_url$gemlog_feed
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=> $feed_web_url$gemlog_feed or through the web at: $feed_web_url$gemlog_feed
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=> $gemlog_sh_link generated with gemlog.sh
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EOF
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} 3>&1 >"$indexfile"
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mv "$indexfile" "$index"
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chmod 644 "$index"
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}
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toot() {
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filename=$(ls -r ./[[:digit:]]*.gmi | head -n 1 | xargs basename)
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title=$(get_post_title "$filename")
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read -r -p "do you want to toot the newest post? [y/N] " response
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if [[ "$response" =~ ^([yY][eE][sS]|[yY])$ ]]
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then
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echo "tooting..."
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# change this if you want the toot to have different content
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printf "new gemlog post: ${title}\n\n${global_url}${filename}\n" | toot post
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fi
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}
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make_globals
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make_atom
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build_entries
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toot
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