76 lines
2.6 KiB
Rust
76 lines
2.6 KiB
Rust
// SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
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//
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// SPDX-License-Identifier: GPL-2.0-or-later
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use std::fmt::Write as _;
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use std::fs;
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use std::path::PathBuf;
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use std::time::{SystemTime, UNIX_EPOCH};
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fn generate_asset_manifest() {
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let manifest_dir = PathBuf::from(std::env::var_os("CARGO_MANIFEST_DIR").expect("manifest dir"));
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let generated_dir = manifest_dir.join("assets/web/generated");
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println!("cargo:rerun-if-changed={}", generated_dir.display());
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let mut filenames = fs::read_dir(&generated_dir)
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.expect("read generated frontend assets")
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.map(|entry| entry.expect("read generated asset entry"))
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.filter(|entry| entry.file_type().is_ok_and(|kind| kind.is_file()))
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.map(|entry| {
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entry
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.file_name()
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.into_string()
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.expect("UTF-8 asset filename")
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})
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.collect::<Vec<_>>();
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filenames.sort();
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let mut output = String::from(
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"// Generated by build.rs from committed frontend output.\n\
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pub const GENERATED_ASSETS: &[(&str, &[u8])] = &[\n",
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);
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for filename in filenames {
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assert!(
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filename
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.bytes()
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.all(|byte| byte.is_ascii_alphanumeric() || b"._-".contains(&byte)),
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"unsupported generated asset filename: {filename}"
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);
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writeln!(
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output,
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" ({filename:?}, include_bytes!(concat!(env!(\"CARGO_MANIFEST_DIR\"), \"/assets/web/generated/\", {filename:?}))),"
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)
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.expect("write asset manifest");
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}
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output.push_str("];\n");
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let output_path =
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PathBuf::from(std::env::var_os("OUT_DIR").expect("out dir")).join("generated_assets.rs");
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fs::write(output_path, output).expect("write generated asset manifest");
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}
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fn utc_ymd_from_unix_secs(secs: i64) -> (i32, u32, u32) {
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let days = secs.div_euclid(86_400);
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let z = days + 719_468;
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let era = if z >= 0 { z } else { z - 146_096 } / 146_097;
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let doe = z - era * 146_097;
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let yoe = (doe - doe / 1_460 + doe / 36_524 - doe / 146_096) / 365;
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let mut y = yoe + era * 400;
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let doy = doe - (365 * yoe + yoe / 4 - yoe / 100);
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let mp = (5 * doy + 2) / 153;
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let d = doy - (153 * mp + 2) / 5 + 1;
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let m = mp + if mp < 10 { 3 } else { -9 };
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y += if m <= 2 { 1 } else { 0 };
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(y as i32, m as u32, d as u32)
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}
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fn main() {
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generate_asset_manifest();
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let secs = match SystemTime::now().duration_since(UNIX_EPOCH) {
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Ok(d) => d.as_secs() as i64,
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Err(_) => 0,
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};
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let (y, m, d) = utc_ymd_from_unix_secs(secs);
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println!("cargo:rustc-env=TRX_CLIENT_BUILD_DATE={y:04}-{m:02}-{d:02}");
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}
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