tjh.dev
1{
2 runCommand,
3 gdk-pixbuf,
4 lib,
5 stdenv,
6 buildPackages,
7}:
8
9{
10 extraLoaders,
11}:
12
13let
14 # Get packages to generate the cache for. We always include gdk-pixbuf.
15 loaderPackages = [
16 gdk-pixbuf
17 ]
18 ++ extraLoaders;
19in
20
21# Generate the cache file by running gdk-pixbuf-query-loaders for each
22# package and concatenating the results.
23runCommand "gdk-pixbuf-loaders.cache"
24 {
25 preferLocalBuild = true;
26 }
27 ''
28 (
29 for package in ${lib.escapeShellArgs loaderPackages}; do
30 module_dir="$package/${gdk-pixbuf.moduleDir}"
31 if [[ ! -d "$module_dir" ]]; then
32 echo "Error: gdkPixbufCacheBuilder: Passed package “''${package}” does not contain GdkPixbuf loaders in “${gdk-pixbuf.moduleDir}”." 1>&2
33 exit 1
34 fi
35 GDK_PIXBUF_MODULEDIR="$module_dir" \
36 ${stdenv.hostPlatform.emulator buildPackages} ${gdk-pixbuf.dev}/bin/gdk-pixbuf-query-loaders
37 done
38 ) > "$out"
39 ''