NAME

     sfeedrc — sfeed_update(1) configuration file

DESCRIPTION

     sfeedrc is the configuration file for sfeed_update(1).

VARIABLES

     sfeedpath
             can be set for the directory to store the TAB-separated feed files.  The default is
             $HOME/.sfeed/feeds.

     maxjobs
             can be used to change the amount of concurrent feed() jobs.  The default is 8.

FUNCTIONS

     feeds()
             This function is the required "main" entry-point function called from
             sfeed_update(1).

     feed(name, feedurl, basesiteurl, encoding)
             Inside the feeds() function feeds can be defined by calling the feed() function, its
             arguments are:

             name    Name of the feed, this is also used as the filename for the TAB-separated
                     feed file.  The feed name cannot contain the '/' character because it is a
                     path separator, they will be replaced with '_'.

             feedurl
                     URL to fetch the RSS/Atom data from, usually a HTTP or HTTPS URL.

             [basesiteurl]
                     Base URL of the feed links.  This argument allows to fix relative item
                     links.

                     According to the RSS and Atom specification feeds should always have
                     absolute URLs, however this is not always the case in practise.

             [encoding]
                     Feeds are decoded from this name to UTF-8, the name should be a usable
                     character-set for the iconv(1) tool.

OVERRIDE FUNCTIONS

     Because sfeed_update(1) is a shellscript each function can be overridden to change its
     behaviour, notable functions are:

     fetch(name, url, feedfile)
             Fetch feed from URL and write the data to stdout, its arguments are:

             name    Specified name in configuration file (useful for logging).

             url     URL to fetch.

             feedfile
                     Used feedfile (useful for comparing modification times).

             By default the tool curl(1) is used.

     convertencoding(name, from, to)
             Convert data from stdin from one text-encoding to another and write it to stdout,
             its arguments are:

             name    Feed name.

             from    From text-encoding.

             to      To text-encoding.

             By default the tool iconv(1) is used.

     parse(name, feedurl, basesiteurl)
             Read RSS/Atom XML data from stdin, convert and write it as sfeed(5) data to stdout.

             name    Name of the feed.

             feedurl
                     URL of the feed.

             basesiteurl
                     Base URL of the feed links.  This argument allows to fix relative item
                     links.

     filter(name)
             Filter sfeed(5) data from stdin and write it to stdout, its arguments are:

             name    Feed name.

     merge(name, oldfile, newfile)
             Merge sfeed(5) data of oldfile with newfile and write it to stdout, its arguments
             are:

             name    Feed name.

             oldfile
                     Old file.

             newfile
                     New file.

     order(name)
             Sort sfeed(5) data from stdin and write it to stdout, its arguments are:

             name    Feed name.

EXAMPLES

     An example configuration file is included named sfeedrc.example and also shown below:

     #sfeedpath="$HOME/.sfeed/feeds"

     # list of feeds to fetch:
     feeds() {
             # feed <name> <feedurl> [basesiteurl] [encoding]
             feed "codemadness" "https://www.codemadness.org/atom_content.xml"
             feed "explosm" "http://feeds.feedburner.com/Explosm"
             feed "golang github releases" "https://github.com/golang/go/releases.atom"
             feed "linux kernel" "https://www.kernel.org/feeds/kdist.xml" "https://www.kernel.org"
             feed "reddit openbsd" "https://old.reddit.com/r/openbsd/.rss"
             feed "slashdot" "http://rss.slashdot.org/Slashdot/slashdot" "http://slashdot.org"
             feed "tweakers" "http://feeds.feedburner.com/tweakers/mixed" "http://tweakers.net" "iso-8859-1"
             # get youtube Atom feed: curl -s -L 'https://www.youtube.com/user/gocoding/videos' | sfeed_web | cut -f 1
             feed "youtube golang" "https://www.youtube.com/feeds/videos.xml?channel_id=UCO3LEtymiLrgvpb59cNsb8A"
             feed "xkcd" "https://xkcd.com/atom.xml" "https://xkcd.com"
     }

     To change the default curl(1) options for fetching the data, the fetch() function can be
     overridden and added at the top of the sfeedrc file:

     # fetch(name, url, feedfile)
     fetch() {
             # allow for 1 redirect, hide User-Agent, timeout is 15 seconds.
             curl -L --max-redirs 1 -H "User-Agent:" -f -s -m 15 \
                     "$2" 2>/dev/null
     }

SEE ALSO

     curl(1), iconv(1), sfeed_update(1), sh(1)

AUTHORS

     Hiltjo Posthuma <hiltjo@codemadness.org>