This repository has no description
pkgs: vendor realwallpaper, nomads-cloud and grib2json from stockholm
nomads-cloud and grib2json are only realwallpaper dependencies; they are
pulled in by path since pkgs/ is not an overlay.
author
lassulus
date
(Oct 7, 2026, 8:54 AM CEST)
commit
b845983a
b845983a98f08b02b6345d126b0a00e14cfe6627
parent
329141a2
329141a2ba7a9a69c1737ad96d25c254bd0a19ee
+491
-3
+2
-3
modules/realwallpaper.nix
+2
-3
modules/realwallpaper.nix
···
1
1
# Copied from stockholm krebs/3modules/realwallpaper.nix (cc283503);
2
-
# realwallpaper now comes from stockholm's packages output instead of its
3
-
# overlay.
2
+
# realwallpaper itself is pkgs/realwallpaper.
4
3
{
5
4
config,
6
5
lib,
···
62
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Type = "simple";
63
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Restart = "on-failure";
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ExecStart = "${
65
-
self.inputs.stockholm.packages.${pkgs.stdenv.hostPlatform.system}.realwallpaper
64
+
self.packages.${pkgs.stdenv.hostPlatform.system}.realwallpaper
66
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}/bin/generate-wallpaper";
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User = "realwallpaper";
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};
+24
pkgs/grib2json/package.nix
+24
pkgs/grib2json/package.nix
···
1
+
# Copied from stockholm krebs/5pkgs/simple/grib2json (cc283503).
2
+
{
3
+
stdenv,
4
+
fetchzip,
5
+
jre,
6
+
}:
7
+
8
+
stdenv.mkDerivation {
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+
name = "grib2json";
10
+
src = fetchzip {
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url = "https://github.com/krebs/grib2json-bin/archive/31efe677b40fe491c988d50f96b59b1b7e2d46f7.zip";
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+
sha256 = "1h3yxg270bvac7kaqsbsv4f8nln1i03rfz4cm8cp7llhjj3s6a6b";
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+
};
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+
installPhase = ''
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mkdir -p $out/bin
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cp -r lib $out/
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+
cat > $out/bin/grib2json << EOF
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+
#!/bin/sh
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set -x
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${jre}/bin/java -jar $out/lib/grib2json-0.8.0-SNAPSHOT.jar "\$@"
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+
EOF
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chmod +x $out/bin/grib2json
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'';
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+
}
+56
pkgs/nomads-cloud/package.nix
+56
pkgs/nomads-cloud/package.nix
···
1
+
# Copied from stockholm krebs/5pkgs/simple/nomads-cloud (cc283503).
2
+
{
3
+
callPackage,
4
+
writers,
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+
coreutils,
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+
curl,
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+
jq,
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+
findutils,
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+
imagemagick,
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+
}:
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+
let
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+
grib2json = callPackage ../grib2json/package.nix { };
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+
in
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writers.writeDashBin "nomads-cloud" ''
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prefix=$(mktemp -d)
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grib_path=$prefix/clouds.grib
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+
json_path=$prefix/clouds.json
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+
pgm_path=$prefix/clouds.pgm
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png_path=$1
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+
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mkdir -p "$prefix"
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+
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+
date=$(${coreutils}/bin/date +%Y%m%d)
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for hour in 18 12 06 00; do
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url="https://nomads.ncep.noaa.gov/cgi-bin/filter_gfs_0p25_1hr.pl?file=gfs.t''${hour}z.pgrb2.0p25.anl&lev_entire_atmosphere_%5C%28considered_as_a_single_layer%5C%29=on&var_CWAT=on&leftlon=-180&rightlon=180&toplat=90&bottomlat=-90&dir=%2Fgfs.''${date}%2F''${hour}%2Fatmos"
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+
echo "$url"
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${curl}/bin/curl -fsS "$url" > "$grib_path"
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if [ "$?" -eq 0 ]; then
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break
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fi
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done
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${grib2json}/bin/grib2json --data "$grib_path" > "$json_path"
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+
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width=$(${jq}/bin/jq '.[0].header.nx' < "$json_path")
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height=$(${jq}/bin/jq '.[0].header.ny' < "$json_path")
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+
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# The maximum gray value. Must be bigger than 0 and less than 65536.
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maxval=1000
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+
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# pgm - Netpbm grayscale image format
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# http://netpbm.sourceforge.net/doc/pgm.html
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{
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echo P2
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echo "$width $height"
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echo "$maxval"
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cat "$json_path" |
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${jq}/bin/jq --argjson maxval "$maxval" -c '
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((.[0].data[]) * $maxval | round)
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+
' |
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+
${findutils}/bin/xargs -n "$width"
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+
} > "$pgm_path"
52
+
53
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${imagemagick}/bin/convert -roll +50% "$pgm_path" "$png_path"
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+
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+
rm -r "$prefix"
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+
''
+41
pkgs/realwallpaper/get_constellations.py
+41
pkgs/realwallpaper/get_constellations.py
···
1
+
from astropy.coordinates import SkyCoord, ITRS, representation
2
+
from astropy.time import Time
3
+
import json
4
+
import sys
5
+
6
+
7
+
def convert_to_itrs(coord):
8
+
c = SkyCoord(coord[0], coord[1], unit='degree', frame='icrs')
9
+
c_itrs = c.transform_to(ITRS(obstime=Time.now()))
10
+
rep = c_itrs.represent_as(representation.UnitSphericalRepresentation)
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+
return [rep.lat.deg, rep.lon.deg]
12
+
13
+
14
+
def points_to_lines(points):
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+
lines = []
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+
for x in range(len(points) - 1):
17
+
lines.append([points[x], points[x+1]])
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return lines
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+
20
+
21
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def main():
22
+
with open(sys.argv[1]) as f:
23
+
constellations = json.load(f)['features']
24
+
25
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output = []
26
+
27
+
for const in constellations:
28
+
for line in const['geometry']['coordinates']:
29
+
transformed_line = []
30
+
for point in line:
31
+
transformed_line.append(convert_to_itrs(point))
32
+
33
+
line_combined = points_to_lines(transformed_line)
34
+
for l in line_combined: # noqa
35
+
output.append(f'{l[0][0]} {l[0][1]} {l[1][0]} {l[1][1]} # {const["id"]}') # noqa
36
+
37
+
print('\n'.join(output))
38
+
39
+
40
+
if __name__ == "__main__":
41
+
main()
+368
pkgs/realwallpaper/package.nix
+368
pkgs/realwallpaper/package.nix
···
1
+
# Copied from stockholm krebs/5pkgs/simple/realwallpaper (cc283503).
2
+
{ pkgs, callPackage }:
3
+
let
4
+
nomads-cloud = callPackage ../nomads-cloud/package.nix { };
5
+
in
6
+
pkgs.writers.writeDashBin "generate-wallpaper" ''
7
+
set -euf
8
+
9
+
export PATH=${
10
+
pkgs.lib.makeBinPath (
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+
[
12
+
nomads-cloud
13
+
]
14
+
++ (with pkgs; [
15
+
coreutils
16
+
curl
17
+
gnugrep
18
+
gnused
19
+
file
20
+
findutils
21
+
imagemagick
22
+
inkscape
23
+
jq
24
+
xplanet
25
+
])
26
+
)
27
+
}
28
+
29
+
# usage: getimg FILENAME URL
30
+
fetch() {
31
+
echo "fetch $1"
32
+
curl -LsS -z "$1" -o "$1" "$2"
33
+
}
34
+
35
+
# usage: check_type FILENAME TYPE
36
+
check_type() {
37
+
if ! file -ib "$1" | grep -q "^$2/"; then
38
+
echo "$1 is not of type $2" >&2
39
+
rm "$1"
40
+
return 1
41
+
fi
42
+
}
43
+
44
+
# check if file exists and fetch only if missing
45
+
fetch_once() {
46
+
name=$1
47
+
url=$2
48
+
test -e "$name" || fetch "$name" "$url"
49
+
}
50
+
51
+
fetch_older_min() {
52
+
min=$1
53
+
name=$2
54
+
url=$3
55
+
if ! test "$(find $name -mmin -$min)"; then
56
+
fetch "$name" "$url"
57
+
fi
58
+
}
59
+
60
+
fetch_older_days() {
61
+
days=$1
62
+
name=$2
63
+
url=$3
64
+
if ! test "$(find $name -mtime -$days)"; then
65
+
fetch "$name" "$url"
66
+
fi
67
+
}
68
+
69
+
# usage: needs_rebuild DST SRC...
70
+
needs_rebuild() {
71
+
a="$1"
72
+
shift
73
+
if ! test -e "$a"; then
74
+
#echo " $a does not exist" >&2
75
+
result=0
76
+
else
77
+
result=1
78
+
for b; do
79
+
if check_type "$b" image; then
80
+
if test "$b" -nt "$a"; then
81
+
#echo " $b is newer than $a" >&2
82
+
result=0
83
+
fi
84
+
fi
85
+
done
86
+
fi
87
+
#case $result in
88
+
# 0) echo "$a needs rebuild" >&2;;
89
+
#esac
90
+
return $result
91
+
}
92
+
93
+
get_neo_url() {
94
+
url=$1
95
+
curl -Ss "$url" | grep '3600 x 1800' | sed 's/.*href="\([^"]*\)".*/\1/'
96
+
}
97
+
98
+
main() {
99
+
cd "''${working_dir:-$PWD}"
100
+
101
+
# fetch source images in parallel
102
+
fetch_once nightmap-raw.jpg \
103
+
'https://eoimages.gsfc.nasa.gov/images/imagerecords/144000/144898/BlackMarble_2016_3km.jpg' &
104
+
fetch_once daymap-raw.tif \
105
+
'https://eoimages.gsfc.nasa.gov/images/imagerecords/57000/57752/land_shallow_topo_8192.tif' &
106
+
107
+
fetch_once mercury-raw.svg \
108
+
'https://upload.wikimedia.org/wikipedia/commons/2/2e/Mercury_symbol.svg' &
109
+
fetch_once venus-raw.svg \
110
+
'https://upload.wikimedia.org/wikipedia/commons/6/66/Venus_symbol.svg' &
111
+
fetch_once mars-raw.svg \
112
+
'https://upload.wikimedia.org/wikipedia/commons/b/b7/Mars_symbol.svg' &
113
+
fetch_once jupiter-raw.svg \
114
+
'https://upload.wikimedia.org/wikipedia/commons/2/26/Jupiter_symbol.svg' &
115
+
fetch_once saturn-raw.svg \
116
+
'https://upload.wikimedia.org/wikipedia/commons/7/74/Saturn_symbol.svg' &
117
+
fetch_once uranus-raw.svg \
118
+
'https://upload.wikimedia.org/wikipedia/commons/f/f1/Uranus_symbol.svg' &
119
+
fetch_once neptune-raw.svg \
120
+
'https://upload.wikimedia.org/wikipedia/commons/4/47/Neptune_symbol.svg' &
121
+
122
+
fetch_once krebs-raw.svg \
123
+
'https://raw.githubusercontent.com/krebs/painload/master/cholerab/bling/krebs_aquarium.svg' &
124
+
125
+
fetch_older_min 720 ice-raw.jpg $(get_neo_url \
126
+
'https://neo.gsfc.nasa.gov/view.php?datasetId=NISE_D') &
127
+
fetch_older_days 1 snow-raw.jpg $(get_neo_url \
128
+
'https://neo.gsfc.nasa.gov/view.php?datasetId=MOD10C1_E_SNOW') &
129
+
fetch_older_days 1 chlora-raw.jpg $(get_neo_url \
130
+
'https://neo.gsfc.nasa.gov/view.php?datasetId=MY1DMM_CHLORA') &
131
+
fetch_older_days 1 fire-raw.jpg $(get_neo_url \
132
+
'https://neo.gsfc.nasa.gov/view.php?datasetId=MOD14A1_E_FIRE') &
133
+
134
+
# regular fetches
135
+
fetch marker.json.tmp "''${marker_url:-}" || :
136
+
if [ -s marker.json.tmp ]; then
137
+
mv marker.json.tmp marker.json
138
+
fi
139
+
fetch sun-raw.jpg 'https://sdo.gsfc.nasa.gov/assets/img/latest/latest_512_0171.jpg' &
140
+
141
+
wait
142
+
143
+
# fetch clouds if they are older than 3h
144
+
if ! test "$(find clouds-raw.png -mmin -180)"; then
145
+
nomads-cloud clouds-raw.png
146
+
fi
147
+
148
+
in_size=3600x1800
149
+
xplanet_out_size=3200x2500
150
+
out_geometry=3200x1800+0+350
151
+
152
+
for raw in \
153
+
nightmap-raw.jpg \
154
+
daymap-raw.tif \
155
+
chlora-raw.jpg \
156
+
clouds-raw.png \
157
+
;
158
+
do
159
+
normal=''${raw%-raw.*}.png
160
+
if needs_rebuild $normal $raw; then
161
+
echo "make $normal; normalize $raw" >&2
162
+
convert $raw -scale $in_size $normal
163
+
fi
164
+
done
165
+
166
+
# remove snow from ice map
167
+
if needs_rebuild ice.png ice-raw.jpg; then
168
+
convert ice-raw.jpg -fuzz 20% -fill black -opaque white -colorspace gray -blur 0x6 -scale "$in_size" ice.png
169
+
fi
170
+
171
+
if needs_rebuild snow.png snow-raw.jpg; then
172
+
convert snow-raw.jpg -fuzz 20% -fill '#DEDEDE' -opaque white -scale "$in_size" snow.png
173
+
fi
174
+
175
+
# make fire more red
176
+
if needs_rebuild fire.png fire-raw.jpg; then
177
+
convert fire-raw.jpg -fuzz 20% -fill '#ef840c' -opaque white -scale "$in_size" fire.png
178
+
fi
179
+
180
+
# cut out sun with alpha transparency
181
+
if needs_rebuild sun.png sun-raw.jpg; then
182
+
convert sun-raw.jpg \
183
+
\( +clone -colorspace HSB -fill white -draw "circle 256,256 256,54" -separate -delete 0,1 \) \
184
+
-compose copyopacity -composite -crop 512x472+0+20 -scale "100x100" sun.png
185
+
fi
186
+
187
+
if needs_rebuild krebs.png krebs-raw.svg; then
188
+
inkscape --export-type="png" --export-width=16 --export-height=16 --export-filename=krebs.png krebs-raw.svg
189
+
fi
190
+
191
+
# -- Planets --
192
+
for planet in mercury venus mars jupiter saturn uranus neptune; do
193
+
if needs_rebuild "$planet".png "$planet"-raw.svg; then
194
+
sed -i 's/#000/#FE8019/g' "$planet"-raw.svg
195
+
inkscape --export-type="png" --export-width=40 --export-height=40 --export-filename="$planet.png" "$planet-raw.svg"
196
+
fi
197
+
done
198
+
199
+
# -- Daymap --
200
+
201
+
# merge with water chlora layer
202
+
if needs_rebuild daymap-final.png daymap.png fire.png snow.png ice.png chlora.png; then
203
+
convert daymap.png fire.png -compose lighten -composite daymap-1.png
204
+
convert daymap-1.png ice.png -compose lighten -composite daymap-2.png
205
+
convert daymap-2.png snow.png -compose lighten -composite daymap-3.png
206
+
convert daymap-3.png chlora.png -compose lighten -composite daymap-final.png
207
+
fi
208
+
209
+
# -- Nightmap --
210
+
211
+
if needs_rebuild nightmap-final.png nightmap.png fire.png snow.png ice.png chlora.png; then
212
+
convert nightmap.png fire.png -compose lighten -composite nightmap-1.png
213
+
convert nightmap-1.png \( -fill black -colorize 70% ice.png \) -compose lighten -composite nightmap-2.png
214
+
convert nightmap-2.png \( -fill black -colorize 70% snow.png \) -compose lighten -composite nightmap-3.png
215
+
convert nightmap-3.png \( -fill black -colorize 70% chlora.png \) -compose lighten -composite nightmap-final.png
216
+
fi
217
+
218
+
# create marker file from json
219
+
echo 'position=sun image=sun.png' > marker_file
220
+
echo 'position=moon image=moon.png' >> marker_file
221
+
echo 'position=mercury image=mercury.png' >> marker_file
222
+
echo 'position=venus image=venus.png' >> marker_file
223
+
echo 'position=mars image=mars.png' >> marker_file
224
+
echo 'position=jupiter image=jupiter.png' >> marker_file
225
+
echo 'position=saturn image=saturn.png' >> marker_file
226
+
echo 'position=uranus image=uranus.png' >> marker_file
227
+
echo 'position=neptune image=neptune.png' >> marker_file
228
+
229
+
# generate moon
230
+
xplanet -body moon --num_times 1 -origin earth \
231
+
--transpng moon.png --geometry 50x50 \
232
+
-config ${pkgs.writeText "moon.config" ''
233
+
[moon]
234
+
shade=10
235
+
''}
236
+
237
+
# rebuild every time to update shadow
238
+
xplanet --num_times 1 --geometry $xplanet_out_size \
239
+
--output xplanet-output.png --projection merc \
240
+
-config ${pkgs.writeText "xplanet.config" ''
241
+
[earth]
242
+
"Earth"
243
+
map=daymap-final.png
244
+
night_map=nightmap-final.png
245
+
cloud_map=clouds.png
246
+
cloud_threshold=1
247
+
cloud_gamma=10
248
+
shade=15
249
+
''}
250
+
251
+
xplanet --num_times 1 --geometry $xplanet_out_size \
252
+
--output xplanet-marker-output.png --projection merc \
253
+
-config ${pkgs.writeText "xplanet-marker.config" ''
254
+
[earth]
255
+
"Earth"
256
+
map=daymap-final.png
257
+
night_map=nightmap-final.png
258
+
cloud_map=clouds.png
259
+
cloud_threshold=1
260
+
cloud_gamma=10
261
+
marker_file=marker_file
262
+
shade=15
263
+
''}
264
+
265
+
if [ -s marker.json ]; then
266
+
jq -r 'to_entries[] | select(.value.latitude != null) | @json "\(.value.latitude) \(.value.longitude) image=krebs.png"' marker.json >> marker_file
267
+
fi
268
+
269
+
xplanet --num_times 1 --geometry $xplanet_out_size \
270
+
--output xplanet-krebs-output.png --projection merc \
271
+
-config ${pkgs.writeText "xplanet-krebs.config" ''
272
+
[earth]
273
+
"Earth"
274
+
map=daymap-final.png
275
+
night_map=nightmap-final.png
276
+
cloud_map=clouds.png
277
+
cloud_threshold=1
278
+
cloud_gamma=10
279
+
marker_file=marker_file
280
+
shade=15
281
+
''}
282
+
283
+
${
284
+
pkgs.writers.writePython3 "get_constellations" {
285
+
libraries = [ pkgs.python3Packages.astropy ];
286
+
} ./get_constellations.py
287
+
} ${
288
+
pkgs.fetchurl {
289
+
url = "https://raw.githubusercontent.com/ofrohn/d3-celestial/d2e20e104b86429d90ac8227a5b021262b45d75a/data/constellations.lines.json";
290
+
sha256 = "0g71fdrnxvxd6pcqvihj2q9iaynrl7px45kzw6qm1kymynz6ckr9";
291
+
}
292
+
} > constellations.arcs || : # seems like astropy doesn't want to convert from icrs to itrs anymore
293
+
294
+
xplanet --num_times 1 --geometry $xplanet_out_size \
295
+
--output xplanet-krebs-stars-output.png --projection merc \
296
+
-config ${pkgs.writeText "xplanet-krebs-stars.config" ''
297
+
[default]
298
+
299
+
arc_thickness=1
300
+
arc_file=constellations.arcs
301
+
302
+
[earth]
303
+
"Earth"
304
+
map=daymap-final.png
305
+
night_map=nightmap-final.png
306
+
cloud_map=clouds.png
307
+
cloud_threshold=1
308
+
cloud_gamma=10
309
+
marker_file=marker_file
310
+
shade=15
311
+
''}
312
+
313
+
xplanet --num_times 1 --geometry $xplanet_out_size \
314
+
--latitude 52.520008 --longitude 13.404954 \
315
+
--output xplanet-krebs-stars-berlin-output.png --projection merc \
316
+
-config ${pkgs.writeText "xplanet-krebs-stars.config" ''
317
+
[default]
318
+
319
+
arc_thickness=1
320
+
arc_file=constellations.arcs
321
+
322
+
[earth]
323
+
"Earth"
324
+
map=daymap-final.png
325
+
night_map=nightmap-final.png
326
+
cloud_map=clouds.png
327
+
cloud_threshold=1
328
+
cloud_gamma=10
329
+
marker_file=marker_file
330
+
shade=15
331
+
''}
332
+
333
+
# trim xplanet output
334
+
if needs_rebuild realwallpaper.png xplanet-output.png; then
335
+
convert xplanet-output.png -crop $out_geometry \
336
+
realwallpaper-tmp.png
337
+
mv realwallpaper-tmp.png realwallpaper.png
338
+
fi
339
+
340
+
if needs_rebuild realwallpaper-marker.png xplanet-marker-output.png; then
341
+
convert xplanet-marker-output.png -crop $out_geometry \
342
+
realwallpaper-marker-tmp.png
343
+
mv realwallpaper-marker-tmp.png realwallpaper-marker.png
344
+
fi
345
+
346
+
if needs_rebuild realwallpaper-krebs.png xplanet-krebs-output.png; then
347
+
convert xplanet-krebs-output.png -crop $out_geometry \
348
+
realwallpaper-krebs-tmp.png
349
+
mv realwallpaper-krebs-tmp.png realwallpaper-krebs.png
350
+
mkdir -p archive
351
+
convert realwallpaper-krebs.png archive/"$(date -Is)".jpg
352
+
fi
353
+
354
+
if needs_rebuild realwallpaper-krebs-stars.png xplanet-krebs-stars-output.png; then
355
+
convert xplanet-krebs-stars-output.png -crop $out_geometry \
356
+
realwallpaper-krebs-stars-tmp.png
357
+
mv realwallpaper-krebs-stars-tmp.png realwallpaper-krebs-stars.png
358
+
fi
359
+
360
+
if needs_rebuild realwallpaper-krebs-stars-berlin.png xplanet-krebs-stars-berlin-output.png; then
361
+
convert xplanet-krebs-stars-berlin-output.png -crop $out_geometry \
362
+
realwallpaper-krebs-stars-berlin-tmp.png
363
+
mv realwallpaper-krebs-stars-berlin-tmp.png realwallpaper-krebs-stars-berlin.png
364
+
fi
365
+
}
366
+
367
+
main "$@"
368
+
''