HOWTO: Set background depending on time, weather, season...

[da_monumental_1]

Anyone set this up to work with gnome?

[larspaul]

Have you ever thought about that the sun doesnt sets and rise at the same time the entire year?
You should include that in you script, i don't know any python so i can't.

[Hydraulix]

I still get the same error.

[Dlareh]

I still get the same error.

onewithnature requires at least one argument, namely the name of a directory within your wallpapers directory

[Dlareh]

Have you ever thought about that the sun doesnt sets and rise at the same time the entire year?
You should include that in you script, i don't know any python so i can't.

Alright, this should be fun...

EDIT: see my new post below, I consolidated everything into a single python script

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emerge -u atd
rc-update add atd default
/etc/init.d/atd start

cd /usr/local/src
wget http://freshmeat.net/redir/sunwait/47299/url_tgz/sunwait-20041208.tar.gz
tar xvzf sunwait-20041208.tar.gz
cd sunwait-20041208
make
mv sunwait /usr/local/bin

Now edit /usr/local/bin/sun and paste the following:

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#!/bin/bash

LOCATION="43.069886N 89.407534W"
SUN="/usr/local/bin/sunwait -p $LOCATION"

case $1 in
    "rise")
        $SUN | awk '/rises/ {print $3}'
    ;;
    "set")
        $SUN | awk '/rises/ {print $6}'
    ;;
    "noon")
        $SUN | awk '/meridian/ {print $4}'
esac

Set LOCATION to your coordinates (in the US, try this site)

Now you can make yourself a script to run once daily from cron. Here is an example, I saved it as /usr/local/bin/makenature :

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#!/bin/bash
SUN=/usr/local/bin/sun
COMMAND='pgrep -x X >&/dev/null && /usr/local/bin/onewithnature'

echo "$COMMAND morning >&/dev/null"   | at `$SUN rise` + 10 minutes; sleep 1
echo "$COMMAND mid-day >&/dev/null"   | at `$SUN noon` - 1 hour; sleep 1
echo "$COMMAND afternoon >&/dev/null" | at `$SUN noon` + 1 hour; sleep 1
echo "$COMMAND sunset >&/dev/null"    | at `$SUN set` - 20 minutes; sleep 1
echo "$COMMAND evening >&/dev/null"   | at `$SUN set` + 40 minutes

( Replace /usr/local/bin/onewithnature with wherever you put the OP's script )

Of course you can adjust the +/- minutes and hours to suit your tastes.

Don't forget the executable permissions for the scripts:

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cd /usr/local/bin; chmod 755 sun makenature onewithnature

To start makenature at boot, append this line to /etc/conf.d/local.start :

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su USERNAME /usr/local/bin/makenature >&/dev/null

(where USERNAME is the name of the user that will be running X)
Finally, in your USERNAME's crontab you'll only need one line:

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        1       0       *       *       *       /usr/local/bin/makenature

[Dlareh]

New python version 0.3 is out, see below...

[grenouille]

very nice! thanks

[Dlareh]

very nice! thanks

Yay, someone cares... here is the new 0.3 release, code-named grenouille

Installation -- If this is your first time trying naturalbg, you will need to:

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emerge -u atd pymetar
rc-update add atd default
/etc/init.d/atd start

cd /usr/local/src
wget http://freshmeat.net/redir/sunwait/47299/url_tgz/sunwait-20041208.tar.gz
tar xvzf sunwait-20041208.tar.gz
cd sunwait-20041208
make
mv sunwait /usr/local/bin

The version 0.3 stuff :

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cd /usr/bin; [ -x fbsetbg ] || wget http://www.khk.org/files/fbsetbg && chmod 755 fbsetbg
cd /usr/local/bin; wget http://www.khk.org/files/naturalbg && chmod 755 naturalbg
$EDITOR naturalbg  #  configure settings . . .

Fbsetbg is the default wallpaper setter, but you can use any one you like. It is a wrapper script taken from fluxbox that should work with any windowmanager, and is not needed if you already have fluxbox installed or would like to use something else instead.

Changelog:

- code to detect if an at job has already been scheduled, to avoid scheduling simultaneous changes
- random wallpaper choosing now done internaly instead of fbsetbg -r, so fbsetbg -l can restore previous wallpaper on X restart

feedback welcome as usual