use std::fs::read_dir;
use std::io::Write;
use std::path::{Path, PathBuf};
fn main() -> std::io::Result<()> {
let mut library_dir = PathBuf::from(std::env::var_os("CARGO_MANIFEST_DIR").unwrap());
library_dir.push("widgets");
println!("cargo:rerun-if-changed={}", library_dir.display());
let output_file_path = Path::new(&std::env::var_os("OUT_DIR").unwrap())
.join(Path::new("included_library").with_extension("rs"));
let mut file = std::fs::File::create(&output_file_path)?;
write!(
file,
r#"
fn widget_library() -> &'static [(&'static str, &'static BuiltinDirectory<'static>)] {{
&[
"#
)?;
for style in read_dir(library_dir)?.filter_map(Result::ok) {
let path = style.path();
if !path.is_dir() {
continue;
}
writeln!(
file,
"(\"{}\", &[{}]),",
path.file_name().unwrap().to_string_lossy(),
process_style(&path)?
)?;
}
writeln!(file, "]\n}}")?;
println!("cargo:rustc-env=SIXTYFPS_WIDGETS_LIBRARY={}", output_file_path.display());
Ok(())
}
fn process_style(path: &Path) -> std::io::Result<String> {
let library_files: Vec<PathBuf> = read_dir(path)?
.filter_map(Result::ok)
.filter(|entry| {
entry.path().is_file()
&& entry
.path()
.extension()
.map(|ext| {
ext == std::ffi::OsStr::new("60")
|| ext == std::ffi::OsStr::new("svg")
|| ext == std::ffi::OsStr::new("svgz")
})
.unwrap_or_default()
})
.map(|entry| entry.path())
.collect();
Ok(library_files
.iter()
.map(|file| {
format!(
"&BuiltinFile {{path: r#\"{}\"# , contents: include_bytes!(r#\"{}\"#)}}",
file.file_name().unwrap().to_string_lossy(),
file.display()
)
})
.collect::<Vec<_>>()
.join(","))
}