libcosmic/build.rs
2026-04-14 21:46:05 +02:00

63 lines
2.1 KiB
Rust

use std::env;
fn main() {
println!("cargo::rerun-if-changed=build.rs");
if env::var_os("CARGO_CFG_UNIX").is_none()
|| env::var("CARGO_CFG_TARGET_OS").as_deref() == Ok("macos")
{
generate_bundled_icons();
}
}
fn generate_bundled_icons() {
println!("cargo::rerun-if-changed=cosmic-icons");
let manifest_dir = std::path::Path::new(std::env!("CARGO_MANIFEST_DIR"));
let icon_paths = [
"cosmic-icons/freedesktop/scalable",
"cosmic-icons/extra/scalable",
];
let key_value_assignments = icon_paths
.into_iter()
.map(|path| manifest_dir.join(path))
.inspect(|icon_path| assert!(icon_path.exists(), "path = {icon_path:?}"))
.map(|icon_path| std::fs::read_dir(icon_path).unwrap())
.flat_map(|dir| {
dir.flat_map(|entry| entry.unwrap().path().read_dir().unwrap())
.map(|entry| {
let entry = entry.unwrap();
let path = entry.path().canonicalize().unwrap();
let file_name = path.file_stem().unwrap().to_str().unwrap().to_owned();
let path = path.into_os_string().into_string().unwrap();
(file_name, path)
})
})
.fold(
std::collections::BTreeMap::new(),
|mut set, (name, path)| {
set.insert(name, path);
set
},
)
.into_iter()
.fold(String::new(), |mut output, (name, path)| {
// This changes the escape character to the one used by Windows.
#[cfg(windows)]
let path = path.replace("\\", "/");
output.push_str(&format!(" \"{name}\" => include_bytes!(\"{path}\"),\n"));
output
});
let code = [
"static ICONS: phf::Map<&'static str, &'static [u8]> = phf::phf_map!(\n",
&key_value_assignments,
");",
]
.concat();
let out_dir = std::env::var_os("OUT_DIR").unwrap();
let out_file = std::path::Path::new(&out_dir).join("bundled_icons.rs");
std::fs::write(&out_file, &code).unwrap();
}