#!/bin/sh
read -ep 'Title of new post: ' TITLE
read -ep 'Tags for new post, comma-separated: ' TAGS
DATE=`date '+%Y-%m-%d %H:%M'`
FNAME="`date '+%Y%m%d'`.`echo "$TITLE"|tr '[:upper:]' '[:lower:]'|tr -cd '[:alnum:]'`.md"
cp posts/post.template posts/$FNAME
env V="$TITLE" perl -pi -e 's/^(title: )/$1$ENV{V}/' posts/$FNAME
env V="$DATE"  perl -pi -e  's/^(date: )/$1$ENV{V}/' posts/$FNAME
env V="$TAGS"  perl -pi -e  's/^(tags: )/$1$ENV{V}/' posts/$FNAME
[ -z "$EDITOR" ] && echo "EDITOR environment variable not set. Please set this to your preferred editor, or open $FNAME manually" && exit
$EDITOR posts/$FNAME