Peter Cai
24f8b36aff
* and get rid of Taobao NPM registry. * I used it because I was blocked from official repo by npmjs for whatever reason.
82 lines
3.1 KiB
Rust
82 lines
3.1 KiB
Rust
extern crate serde_json;
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use std::fs;
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use std::io::prelude::*;
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use std::time::*;
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fn main() {
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println!("cargo:rerun-if-changed=config.json");
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println!("cargo:rerun-if-changed=Cargo.toml");
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rerun_if_dir_changed("src");
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rerun_if_dir_changed("theme");
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// Load theme name from config.json and output code to load the theme via include_dir!
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let config: serde_json::Value =
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serde_json::from_str(&fs::read_to_string("./config.json").unwrap()).unwrap();
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generate_build_timestamp();
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generate_theme_loader(&config);
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generate_hljs_loader(&config);
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}
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fn rerun_if_dir_changed(dir: &str) {
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for f in fs::read_dir(dir).unwrap() {
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let f = f.unwrap();
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let t = f.file_type().unwrap();
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let path = f.path();
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let path = path.to_str().unwrap();
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println!("cargo:rerun-if-changed={}", path);
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if t.is_dir() {
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rerun_if_dir_changed(path);
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}
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}
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}
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fn generate_build_timestamp() {
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let build_time = format!(
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"pub const BUILD_TIMESTAMP: u64 = {};",
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SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs());
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let out_path = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap());
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let mut out_file = fs::File::create(out_path.join("build_timestamp.rs")).unwrap();
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out_file.write(build_time.as_bytes()).unwrap();
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out_file.sync_data().unwrap();
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}
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fn generate_theme_loader(config: &serde_json::Value) {
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let theme_name = match config.get("theme") {
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Some(name) => name,
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None => panic!("Please define `theme` in `config.json`")
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};
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let theme_load_code = format!("const THEME_DIR: Dir = include_dir!(\"theme/{}\");", theme_name.as_str().unwrap());
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let out_path = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap());
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let mut out_file = fs::File::create(out_path.join("load_theme.rs")).unwrap();
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out_file.write_all(theme_load_code.as_bytes()).unwrap();
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out_file.sync_data().unwrap();
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}
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fn generate_hljs_loader(config: &serde_json::Value) {
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let highlight_lang = match config.get("hljs") {
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Some(val) => val,
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None => panic!("Please specify what language for hljs to support in `config.json` with `hljs`")
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};
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if !highlight_lang.is_array() {
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panic!("`hljs` is not an array");
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}
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let highlight_lang = highlight_lang.as_array().unwrap().into_iter().map(|lang| {
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let lang = lang.as_str().unwrap();
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// Require only the needed language definition files
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format!("hljs.registerLanguage('{}', require('highlight.js/lib/languages/{}'));\n", lang, lang)
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}).collect::<String>();
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let js_code = format!(
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"const hljs = require(\\\"highlight.js/lib/core\\\");\n{}module.exports = hljs;",
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highlight_lang);
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let rs_code = fs::read_to_string("./src/hljs_tpl.rs").unwrap();
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let rs_code = format!("#[wasm_bindgen(inline_js = \"{}\")]\n{}", js_code, rs_code);
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let out_path = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap());
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let mut out_file = fs::File::create(out_path.join("load_hljs.rs")).unwrap();
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out_file.write_all(rs_code.as_bytes()).unwrap();
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out_file.sync_data().unwrap();
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}
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