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rssadd improvement: additionally extract from xml files, not just urls (#885)

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* additionally extract from xml files

Before this, rssadd only accepted a URL as argument. Now, if given
an xml file, it will parse it and extract the proper url. This lets it
be used in conjunction with firefox for quickly adding RSS feeds (as
firefox would give it the file rather than its origin URL). This works
on a majority of RSS feeds, but fails on some that miss the proper link
tags. The original behaviour is still mantained alongside the new.

* remove surplus `exit`

* more performant grepping
This commit is contained in:
Roberto Polverelli Monti 2021-03-30 01:39:55 +00:00 committed by KronikPillow
parent 3627b188d8
commit 8f539bf044
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1 changed files with 12 additions and 4 deletions
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16
.local/bin/rssadd
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@ -1,10 +1,18 @@
#!/bin/sh
! echo "$1" | grep "https*://\S\+\.[A-Za-z]\+\S*" >/dev/null &&
notify-send "That doesn't look like a full URL." && exit
if echo "$1" | grep "https*://\S\+\.[A-Za-z]\+\S*" >/dev/null; then
url="$1"
else
url="$(grep -Eom1 '<[^>]+(rel="self"|application/[a-z]+\+xml)[^>]+>' "$1" |
sed -E 's_^.*href="(https?://[^"]+)".*$_\1_')"
! grep "https*://\S\+\.[A-Za-z]\+\S*" <<<"$url" &&
notify-send "That doesn't look like a full URL." && exit 1
fi
RSSFILE="${XDG_CONFIG_HOME:-$HOME/.config}/newsboat/urls"
if awk '{print $1}' "$RSSFILE" | grep "^$1$" >/dev/null; then
if awk '{print $1}' "$RSSFILE" | grep "^$url$" >/dev/null; then
notify-send "You already have this RSS feed."
else
echo "$1" >> "$RSSFILE" && notify-send "RSS feed added."
echo "$url" >> "$RSSFILE" && notify-send "RSS feed added."
fi