logseq/resources/js/isomorphic-git/1.7.4/http-web-index.umd.js

177 lines
4.8 KiB
JavaScript

(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = global || self, factory(global.GitHttp = {}));
}(this, (function (exports) { 'use strict';
/**
* @typedef {Object} GitProgressEvent
* @property {string} phase
* @property {number} loaded
* @property {number} total
*/
/**
* @callback ProgressCallback
* @param {GitProgressEvent} progress
* @returns {void | Promise<void>}
*/
/**
* @typedef {Object} GitHttpRequest
* @property {string} url - The URL to request
* @property {string} [method='GET'] - The HTTP method to use
* @property {Object<string, string>} [headers={}] - Headers to include in the HTTP request
* @property {AsyncIterableIterator<Uint8Array>} [body] - An async iterator of Uint8Arrays that make up the body of POST requests
* @property {ProgressCallback} [onProgress] - Reserved for future use (emitting `GitProgressEvent`s)
* @property {object} [signal] - Reserved for future use (canceling a request)
*/
/**
* @typedef {Object} GitHttpResponse
* @property {string} url - The final URL that was fetched after any redirects
* @property {string} [method] - The HTTP method that was used
* @property {Object<string, string>} [headers] - HTTP response headers
* @property {AsyncIterableIterator<Uint8Array>} [body] - An async iterator of Uint8Arrays that make up the body of the response
* @property {number} statusCode - The HTTP status code
* @property {string} statusMessage - The HTTP status message
*/
/**
* @callback HttpFetch
* @param {GitHttpRequest} request
* @returns {Promise<GitHttpResponse>}
*/
/**
* @typedef {Object} HttpClient
* @property {HttpFetch} request
*/
// Convert a value to an Async Iterator
// This will be easier with async generator functions.
function fromValue(value) {
let queue = [value];
return {
next() {
return Promise.resolve({ done: queue.length === 0, value: queue.pop() })
},
return() {
queue = [];
return {}
},
[Symbol.asyncIterator]() {
return this
},
}
}
function getIterator(iterable) {
if (iterable[Symbol.asyncIterator]) {
return iterable[Symbol.asyncIterator]()
}
if (iterable[Symbol.iterator]) {
return iterable[Symbol.iterator]()
}
if (iterable.next) {
return iterable
}
return fromValue(iterable)
}
// Currently 'for await' upsets my linters.
async function forAwait(iterable, cb) {
const iter = getIterator(iterable);
while (true) {
const { value, done } = await iter.next();
if (value) await cb(value);
if (done) break
}
if (iter.return) iter.return();
}
async function collect(iterable) {
let size = 0;
const buffers = [];
// This will be easier once `for await ... of` loops are available.
await forAwait(iterable, value => {
buffers.push(value);
size += value.byteLength;
});
const result = new Uint8Array(size);
let nextIndex = 0;
for (const buffer of buffers) {
result.set(buffer, nextIndex);
nextIndex += buffer.byteLength;
}
return result
}
// Convert a web ReadableStream (not Node stream!) to an Async Iterator
// adapted from https://jakearchibald.com/2017/async-iterators-and-generators/
function fromStream(stream) {
// Use native async iteration if it's available.
if (stream[Symbol.asyncIterator]) return stream
const reader = stream.getReader();
return {
next() {
return reader.read()
},
return() {
reader.releaseLock();
return {}
},
[Symbol.asyncIterator]() {
return this
},
}
}
/* eslint-env browser */
/**
* HttpClient
*
* @param {GitHttpRequest} request
* @returns {Promise<GitHttpResponse>}
*/
async function request({
onProgress,
url,
method = 'GET',
headers = {},
body,
}) {
// streaming uploads aren't possible yet in the browser
if (body) {
body = await collect(body);
}
const res = await fetch(url, { method, headers, body });
const iter =
res.body && res.body.getReader
? fromStream(res.body)
: [new Uint8Array(await res.arrayBuffer())];
// convert Header object to ordinary JSON
headers = {};
for (const [key, value] of res.headers.entries()) {
headers[key] = value;
}
return {
url: res.url,
method: res.method,
statusCode: res.status,
statusMessage: res.statusText,
body: iter,
headers: headers,
}
}
var index = { request };
exports.default = index;
exports.request = request;
Object.defineProperty(exports, '__esModule', { value: true });
})));