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denoland-deno/cli/rt/40_read_file.js
2020-07-23 16:27:26 +02:00

43 lines
1 KiB
JavaScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
((window) => {
const { open, openSync } = window.__bootstrap.files;
const { readAll, readAllSync } = window.__bootstrap.buffer;
function readFileSync(path) {
const file = openSync(path);
const contents = readAllSync(file);
file.close();
return contents;
}
async function readFile(path) {
const file = await open(path);
const contents = await readAll(file);
file.close();
return contents;
}
function readTextFileSync(path) {
const file = openSync(path);
const contents = readAllSync(file);
file.close();
const decoder = new TextDecoder();
return decoder.decode(contents);
}
async function readTextFile(path) {
const file = await open(path);
const contents = await readAll(file);
file.close();
const decoder = new TextDecoder();
return decoder.decode(contents);
}
window.__bootstrap.readFile = {
readFile,
readFileSync,
readTextFileSync,
readTextFile,
};
})(this);