mirror of
https://github.com/DioxusLabs/dioxus
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80 lines
2.6 KiB
Rust
80 lines
2.6 KiB
Rust
use std::process::Command;
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fn main() {
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// If any TS changes, re-run the build script
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println!("cargo:rerun-if-changed=src/ts/form.ts");
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println!("cargo:rerun-if-changed=src/ts/core.ts");
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println!("cargo:rerun-if-changed=src/ts/serialize.ts");
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println!("cargo:rerun-if-changed=src/ts/set_attribute.ts");
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println!("cargo:rerun-if-changed=src/ts/common.ts");
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// Compute the hash of the ts files
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let hash = hash_ts_files();
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// If the hash matches the one on disk, we're good and don't need to update bindings
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let expected = include_str!("src/js/hash.txt").trim();
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if expected == hash.to_string() {
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return;
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}
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// Otherwise, generate the bindings and write the new hash to disk
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// Generate the bindings for both native and web
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gen_bindings("common", "common");
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gen_bindings("native", "native");
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gen_bindings("core", "core");
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std::fs::write("src/js/hash.txt", hash.to_string()).unwrap();
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}
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/// Hashes the contents of a directory
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fn hash_ts_files() -> u128 {
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let mut out = 0;
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let files = [
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include_str!("src/ts/common.ts"),
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include_str!("src/ts/native.ts"),
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include_str!("src/ts/core.ts"),
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];
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// Let's make the dumbest hasher by summing the bytes of the files
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// The location is multiplied by the byte value to make sure that the order of the bytes matters
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let mut idx = 0;
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for file in files {
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// windows + git does a weird thing with line endings, so we need to normalize them
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for line in file.lines() {
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idx += 1;
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for byte in line.bytes() {
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idx += 1;
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out += (byte as u128) * (idx as u128);
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}
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}
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}
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out
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}
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// okay...... so tsc might fail if the user doesn't have it installed
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// we don't really want to fail if that's the case
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// but if you started *editing* the .ts files, you're gonna have a bad time
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// so.....
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// we need to hash each of the .ts files and add that hash to the JS files
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// if the hashes don't match, we need to fail the build
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// that way we also don't need
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fn gen_bindings(input_name: &str, output_name: &str) {
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// If the file is generated, and the hash is different, we need to generate it
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let status = Command::new("bun")
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.arg("build")
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.arg(format!("src/ts/{input_name}.ts"))
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.arg("--outfile")
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.arg(format!("src/js/{output_name}.js"))
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.arg("--minify-whitespace")
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.arg("--minify-syntax")
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.status()
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.unwrap();
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if !status.success() {
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panic!(
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"Failed to generate bindings for {}. Make sure you have tsc installed",
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input_name
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);
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}
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}
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