!/bin/bash

Copyright 2020 babiak

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU Affero General Public License as

published by the Free Software Foundation, either version 3 of the

License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License

This program uses code from nytpu's gemlog.sh, also licensed under the GNU AGPL,

which can be found at https://git.sr.ht/~nytpu/gemlog.sh .

Essentially, this is a stripped-down version of the aforementionned script.

get_post_title() {

cat "$1" | perl -lne 's/#{1,3}\s*(.*)/\1/ or next; print; exit'

}

gemlog="${GEMLOG:-gemlog.gmi}"

prefix="${PREFIX:-}"

tempfile=$(mktemp)

header=$(cat << EOF

Babiak's gemlog.

generated automatically using gemlog_two.sh, based on nytpu's gemlog.sh. link is in the script.

=> the script

EOF

)

get_post_date() {

# assumes a git repository. returns date of last modification.

git log -1 --format="%ad" --date=iso -- "$1" | sed 's/ .*$//'

}

build_entries() {

# run in the folder you want to index.

find . -maxdepth 1 -type f -name '*.gmi' -not -empty -print0 | while IFS= read -r -d '' gemfile

do

	gemfile=$(echo $gemfile|sed 's/\.\///')

	if [[ "$gemfile" == "$gemlog" ]] ;then

		continue

	fi

	printf "=> %s%s %s %s%s\n" "$prefix" "$gemfile" "$(get_post_date $gemfile)" "$prefix" "$(get_post_title $gemfile)"

done

}

recursion_handler() {

if [[ "$1" == "-r" ]]

then

	oldprefix=$prefix

	find . -type d -not -path '*/\.*' -print0 | while IFS= read -r -d '' folder

	do

		pushd $folder >/dev/null

		prefix=$(echo $folder|sed 's/^\(\.\/\|\.\)//')/

		echo "## $prefix"

		recursion_handler

		popd >/dev/null

	done

	prefix=$oldprefix

else

	build_entries

fi

}

main(){

echo "$header" > $tempfile

recursion_handler $@ >> $tempfile

mv $tempfile $gemlog

chmod og+r $gemlog

git add $gemlog 

git commit -m "updated gemlog index"

}

main $@