This repository has no description
pkgs.realwallpaper: bump d3-celestial pin, add updateScript
author
lassulus
date
(Oct 13, 2026, 2:14 AM CEST)
commit
c4fdacdf
c4fdacdf510b73555a9b774e5cb557a8330f1425
parent
152892c5
152892c524f7cdf399eb86bf1c91b88ee5e7d90f
+75
-5
+1
-1
pkgs/realwallpaper/grib2json.nix
+1
-1
pkgs/realwallpaper/grib2json.nix
···
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name = "grib2json";
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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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hash = "sha256-yyijh5SQ0nMZqox8lweIwVKLHNl6aazmYWovcMTrfsA=";
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};
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installPhase = ''
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mkdir -p $out/bin
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-4
pkgs/realwallpaper/package.nix
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pkgs/realwallpaper/package.nix
···
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let
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nomads-cloud = callPackage ./nomads-cloud.nix { };
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in
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pkgs.writers.writeDashBin "generate-wallpaper" ''
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(pkgs.writers.writeDashBin "generate-wallpaper" ''
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set -euf
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export PATH=${
···
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} ./get_constellations.py
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} ${
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pkgs.fetchurl {
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url = "https://raw.githubusercontent.com/ofrohn/d3-celestial/d2e20e104b86429d90ac8227a5b021262b45d75a/data/constellations.lines.json";
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sha256 = "0g71fdrnxvxd6pcqvihj2q9iaynrl7px45kzw6qm1kymynz6ckr9";
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url = "https://raw.githubusercontent.com/ofrohn/d3-celestial/7e720a3de062059d4c5400a379146a601d9010e0/data/constellations.lines.json";
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hash = "sha256-KU9mvvXVz1Cx4X8W0u+h2XoVExYSxo3ZNa3vbnNz4Tw=";
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}
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} > constellations.arcs || : # seems like astropy doesn't want to convert from icrs to itrs anymore
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···
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}
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main "$@"
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''
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'').overrideAttrs
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(old: {
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passthru = (old.passthru or { }) // {
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updateScript = ./update.sh;
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};
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})
+65
pkgs/realwallpaper/update.sh
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pkgs/realwallpaper/update.sh
···
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#!/usr/bin/env bash
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set -euo pipefail
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# realwallpaper has no version of its own; it pins two upstream GitHub assets
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# by commit. Bump each to the head of its default branch and refresh its hash.
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# Run by update-pkgs from the flake root ($0 is a read-only store copy).
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attr=realwallpaper
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dir=pkgs/realwallpaper
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system=$(nix eval --raw --impure --expr 'builtins.currentSystem')
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build_attr=".#packages.$system.$attr"
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# file | owner/repo | branch | URL prefix up to (and excluding) the 40-char rev
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assets=(
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"$dir/grib2json.nix|krebs/grib2json-bin|master|https://github.com/krebs/grib2json-bin/archive/"
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"$dir/package.nix|ofrohn/d3-celestial|master|https://raw.githubusercontent.com/ofrohn/d3-celestial/"
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)
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# The probe build is *expected* to fail (hash mismatch); `|| true` keeps
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# pipefail/errexit from turning that into an empty `got`. awk must not
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# `exit` early or tee dies of SIGPIPE and takes the pipeline with it.
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probe_hash() {
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{ nix build --no-link "$build_attr" 2>&1 || true; } | tee /dev/stderr \
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| awk '/got:/ && !seen { print $2; seen = 1 }' || true
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}
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changed=0
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for asset in "${assets[@]}"; do
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IFS='|' read -r file repo branch prefix <<<"$asset"
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prefix_re=${prefix//./\\.}
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old_rev=$(grep -oE "${prefix_re}[0-9a-f]{40}" "$file" | sed "s|^${prefix_re}||")
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new_rev=$(curl -fsSL "https://api.github.com/repos/$repo/commits/$branch" | jq -r .sha)
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if [ -z "$old_rev" ] || [ -z "$new_rev" ] || [ "$new_rev" = null ]; then
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echo "$attr: could not determine revisions for $repo (old='$old_rev' new='$new_rev')" >&2
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exit 1
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fi
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if [ "$old_rev" = "$new_rev" ]; then
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echo "$attr: $repo already at $new_rev"
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continue
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fi
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# Bump the rev and blank the hash that follows the URL: with the old hash in
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# place nix would reuse the cached FOD and "succeed" on stale content.
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sed -i \
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-e "s|${prefix_re}${old_rev}|${prefix}${new_rev}|" \
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-e "\|${prefix_re}${new_rev}|,\|hash = |s|hash = \"[^\"]*\"|hash = \"\"|" \
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"$file"
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# Only this asset's hash is blank, so the first mismatch belongs to it.
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got=$(probe_hash)
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if [ -z "$got" ]; then
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echo "$attr: no hash mismatch reported for $repo" >&2
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exit 1
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fi
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sed -i "\|${prefix_re}${new_rev}|,\|hash = |s|hash = \"\"|hash = \"$got\"|" "$file"
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echo "$attr: $repo $old_rev → $new_rev ($got)"
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changed=1
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done
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if [ "$changed" = 0 ]; then
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echo "$attr: already up to date"
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exit 0
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fi
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nix build --no-link "$build_attr"