Minetest-WorldEditAdditions/.docs/lib/FileFetcher.js

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"use strict";
const path = require("path");
const fs = require("fs");
const os = require("os");
const phin = require("phin");
const a = require("./Ansi.js");
var pretty_ms = null;
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class FileFetcher {
#cache = [];
#pkg_obj = null;
constructor() {
}
fetch_file(url) {
let target_client = path.join(`/img`, path.basename(url));
if(this.#cache.includes(url)) return target_client;
this.#cache.push(url);
this.download_file(url); // Returns a promise! We fire-and-forget it though 'cause this function *must* be synchronous :-/
return target_client;
}
async download_file(url) {
const time_start = new Date();
if(pretty_ms === null)
pretty_ms = (await import("pretty-ms")).default;
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if(this.#pkg_obj === null) {
this.#pkg_obj = JSON.parse(await fs.promises.readFile(
path.join(path.dirname(__dirname), "package.json"), "utf8"
));
}
let target_download = path.join(`_site/img`, path.basename(url));
const response = await phin({
url,
headers: {
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"user-agent": `WorldEditAdditionsStaticBuilder/${this.#pkg_obj.version} (Node.js/${process.version}; ${os.platform()} ${os.arch()}) eleventy/${this.#pkg_obj.dependencies["@11ty/eleventy"].replace(/\^/, "")}`
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},
followRedirects: true,
parse: 'none' // Returns a Buffer
// If we stream and pipe to a file, the build never ends :-/
});
await fs.promises.writeFile(target_download, response.body);
console.log([
`${a.fred}${a.hicol}FETCH_FILE${a.reset}`,
`${a.fyellow}${pretty_ms(new Date() - time_start)}${a.reset}`,
`${a.fgreen}${url}${a.reset}`
].join("\t"));
}
}
module.exports = FileFetcher;