101 lines
3.3 KiB
JavaScript
101 lines
3.3 KiB
JavaScript
|
var __defProp = Object.defineProperty;
|
||
|
|
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
|
||
|
|
var __getOwnPropNames = Object.getOwnPropertyNames;
|
||
|
|
var __hasOwnProp = Object.prototype.hasOwnProperty;
|
||
|
|
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
|
||
|
|
var __export = (target, all) => {
|
||
|
|
for (var name in all)
|
||
|
|
__defProp(target, name, { get: all[name], enumerable: true });
|
||
|
|
};
|
||
|
|
var __copyProps = (to, from, except, desc) => {
|
||
|
|
if (from && typeof from === "object" || typeof from === "function") {
|
||
|
|
for (let key of __getOwnPropNames(from))
|
||
|
|
if (!__hasOwnProp.call(to, key) && key !== except)
|
||
|
|
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
|
||
|
|
}
|
||
|
|
return to;
|
||
|
|
};
|
||
|
|
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
|
||
|
|
|
||
|
|
// src/index.ts
|
||
|
|
var src_exports = {};
|
||
|
|
__export(src_exports, {
|
||
|
|
fileStreamHasher: () => fileStreamHasher,
|
||
|
|
readableStreamHasher: () => readableStreamHasher
|
||
|
|
});
|
||
|
|
module.exports = __toCommonJS(src_exports);
|
||
|
|
|
||
|
|
// src/fileStreamHasher.ts
|
||
|
|
var import_fs = require("fs");
|
||
|
|
|
||
|
|
// src/HashCalculator.ts
|
||
|
|
var import_util_utf8 = require("@smithy/util-utf8");
|
||
|
|
var import_stream = require("stream");
|
||
|
|
var _HashCalculator = class _HashCalculator extends import_stream.Writable {
|
||
|
|
constructor(hash, options) {
|
||
|
|
super(options);
|
||
|
|
this.hash = hash;
|
||
|
|
}
|
||
|
|
_write(chunk, encoding, callback) {
|
||
|
|
try {
|
||
|
|
this.hash.update((0, import_util_utf8.toUint8Array)(chunk));
|
||
|
|
} catch (err) {
|
||
|
|
return callback(err);
|
||
|
|
}
|
||
|
|
callback();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
__name(_HashCalculator, "HashCalculator");
|
||
|
|
var HashCalculator = _HashCalculator;
|
||
|
|
|
||
|
|
// src/fileStreamHasher.ts
|
||
|
|
var fileStreamHasher = /* @__PURE__ */ __name((hashCtor, fileStream) => new Promise((resolve, reject) => {
|
||
|
|
if (!isReadStream(fileStream)) {
|
||
|
|
reject(new Error("Unable to calculate hash for non-file streams."));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
const fileStreamTee = (0, import_fs.createReadStream)(fileStream.path, {
|
||
|
|
start: fileStream.start,
|
||
|
|
end: fileStream.end
|
||
|
|
});
|
||
|
|
const hash = new hashCtor();
|
||
|
|
const hashCalculator = new HashCalculator(hash);
|
||
|
|
fileStreamTee.pipe(hashCalculator);
|
||
|
|
fileStreamTee.on("error", (err) => {
|
||
|
|
hashCalculator.end();
|
||
|
|
reject(err);
|
||
|
|
});
|
||
|
|
hashCalculator.on("error", reject);
|
||
|
|
hashCalculator.on("finish", function() {
|
||
|
|
hash.digest().then(resolve).catch(reject);
|
||
|
|
});
|
||
|
|
}), "fileStreamHasher");
|
||
|
|
var isReadStream = /* @__PURE__ */ __name((stream) => typeof stream.path === "string", "isReadStream");
|
||
|
|
|
||
|
|
// src/readableStreamHasher.ts
|
||
|
|
var readableStreamHasher = /* @__PURE__ */ __name((hashCtor, readableStream) => {
|
||
|
|
if (readableStream.readableFlowing !== null) {
|
||
|
|
throw new Error("Unable to calculate hash for flowing readable stream");
|
||
|
|
}
|
||
|
|
const hash = new hashCtor();
|
||
|
|
const hashCalculator = new HashCalculator(hash);
|
||
|
|
readableStream.pipe(hashCalculator);
|
||
|
|
return new Promise((resolve, reject) => {
|
||
|
|
readableStream.on("error", (err) => {
|
||
|
|
hashCalculator.end();
|
||
|
|
reject(err);
|
||
|
|
});
|
||
|
|
hashCalculator.on("error", reject);
|
||
|
|
hashCalculator.on("finish", () => {
|
||
|
|
hash.digest().then(resolve).catch(reject);
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}, "readableStreamHasher");
|
||
|
|
// Annotate the CommonJS export names for ESM import in node:
|
||
|
|
|
||
|
|
0 && (module.exports = {
|
||
|
|
fileStreamHasher,
|
||
|
|
readableStreamHasher
|
||
|
|
});
|
||
|
|
|