Shows latest entires in podcast as a table in commandline

show-podcast.sh

#!/bin/bash

# Dependencies:
# yq  - https://github.com/mikefarah/yq
# xsv - https://github.com/burntsushi/xsv

# Usage:
# ❯ ./show-podcast.sh https://gotime.fm/rss

# This exec statement puts the script to a free file descriptor. i.e. to a in-memory temporary file whose path is /dev/fd/$fd
# yq does not support comments, we strip of '##.*' using a sed command before passing to yq
exec {fd}<<'YQSCRIPT'
.rss.channel.item                 ## Walk down the tree to the item array
| with(.[];                       ## For each item, do the following
    .download = .enclosure.+url,  ## set download field to url attribute of enclosure tag
    .title |= .[0],               ## Some feeds have both <title> and <itunes:title>, use first one in that case
    . |= pick([                   ## pick only these tags
            "pubDate", 
            "title", 
            "duration",           ## It is actually <itunes:duration> tag, namespace ignored
            "download"            ## download is the field we set above, not from rss
         ]) 
  )
| (                               ## Convert to array of array of entries for csv convertion
    [ .[0] | keys ]               ## Header row
    + [ .[] | [.*] ]              ## Rest of the entries
  )
YQSCRIPT

curl -sL "$1" |
    yq -p xml | # This line is not needed from release 4.27.1. '-p xml' can be moved to next yq
    yq --from-file <(sed 's/ *##.*//g' /dev/fd/$fd) -o csv | 
    head | xsv table