cad-editor/build.rs
2026-06-25 00:01:36 +03:00

110 lines
4.2 KiB
Rust

// build.rs — auto-generates src/modules/registry.rs
//
// Scans src/modules/ for subdirectories containing a mod.rs file.
// Each subdirectory name like "home" maps to a struct "HomeModule"
// defined in src/modules/home/mod.rs.
//
// Rules for a directory to be picked up:
// • Located directly in src/modules/
// • Contains a mod.rs file
// • Does NOT contain plugin.toml (add-ons register via BuiltinPlugin::ribbon)
// • Defines a pub struct {PascalCase}Module implementing CadModule
// (unit struct — no ::new() needed)
//
// Tab display order: the PRIORITY list below controls order.
// Unlisted modules appear after priority modules, sorted alphabetically.
//
// Adding a new module:
// 1. Create src/modules/my_name/mod.rs (implement CadModule as MyNameModule)
// 2. Add `pub mod my_name;` to src/modules/mod.rs
// 3. cargo build → module appears in the ribbon
use std::fs;
use std::path::Path;
// Display order for known modules; unknown modules follow alphabetically.
const PRIORITY: &[&str] = &["draw", "model", "insert", "annotate", "view", "manage"];
fn main() {
// Windows: embed AppIcon.ico into the .exe so the executable carries its
// own icon (Explorer, taskbar, Start-menu tile, file associations). The
// .ico is produced from assets/logo.svg by the release workflow before the
// build; when it is absent (local/dev builds) this is skipped. See #107.
#[cfg(windows)]
{
println!("cargo:rerun-if-changed=packaging/windows/AppIcon.ico");
if Path::new("packaging/windows/AppIcon.ico").exists() {
let mut res = winresource::WindowsResource::new();
res.set_icon("packaging/windows/AppIcon.ico");
if let Err(e) = res.compile() {
println!("cargo:warning=failed to embed Windows icon: {e}");
}
}
}
let mods_dir = Path::new("src/modules");
println!("cargo:rerun-if-changed=src/modules");
// Collect subdirectories that contain mod.rs.
let mut modules: Vec<String> = fs::read_dir(mods_dir)
.expect("src/modules/ not found")
.filter_map(|e| {
let entry = e.ok()?;
if !entry.file_type().ok()?.is_dir() {
return None;
}
let name = entry.file_name().into_string().ok()?;
let mod_file = mods_dir.join(&name).join("mod.rs");
let plugin_toml = mods_dir.join(&name).join("plugin.toml");
if mod_file.exists() && !plugin_toml.exists() {
Some(name)
} else {
None
}
})
.collect();
// Sort: priority order first, then alphabetical for the rest.
modules.sort_by_key(|name| {
let pri = PRIORITY.iter().position(|p| *p == name.as_str());
(pri.map(|i| i as u32).unwrap_or(u32::MAX), name.clone())
});
// snake_case → PascalCase + "Module"
let to_struct = |s: &str| -> String {
s.split('_')
.map(|w| {
let mut c = w.chars();
match c.next() {
None => String::new(),
Some(f) => f.to_uppercase().collect::<String>() + c.as_str(),
}
})
.collect::<String>()
+ "Module"
};
let mut out = String::from(
"// AUTO-GENERATED by build.rs — do not edit by hand.\n\
// To add a module: create src/modules/my_name/mod.rs + add `pub mod my_name;` to modules/mod.rs.\n\n\
use crate::modules::CadModule;\n\n\
/// Returns one boxed instance of every registered CAD module.\n\
/// Called once at startup by `Ribbon::new()`.\n\
pub fn all_modules() -> Vec<Box<dyn CadModule>> {\n\
\tvec![\n",
);
for module in &modules {
let s = to_struct(module);
out.push_str(&format!("\t\tBox::new(super::{module}::{s}),\n"));
}
out.push_str("\t]\n}\n");
let out_dir = std::env::var("OUT_DIR").expect("OUT_DIR not set");
let out_path = Path::new(&out_dir).join("modules_registry.rs");
let current = fs::read_to_string(&out_path).unwrap_or_default();
if current != out {
fs::write(&out_path, &out).expect("failed to write modules_registry.rs");
}
}