init

mc_test/node_modules/crc32-stream/CHANGELOG.md

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+## Changelog
+
+**4.0.3** — <small>_September 2, 2023_</small> — [Diff](https://github.com/archiverjs/node-crc32-stream/compare/4.0.2...4.0.3)
+
+**4.0.2** — <small>_February 3, 2021_</small> — [Diff](https://github.com/archiverjs/node-crc32-stream/compare/4.0.1...4.0.2)
+
+### Bug Fixes
+
+- fix DeflateCRC32Stream to support Node.js 15.6.0+ (#31) (#32)
+
+### Maintenance
+
+- Bump actions/setup-node from v2.1.2 to v2.1.4 (#30)
+
+**4.0.1** — <small>_November 18, 2020_</small> — [Diff](https://github.com/archiverjs/node-crc32-stream/compare/4.0.0...4.0.1)
+
+### Bug Fixes
+
+- use crc-32 rather than crc module (#28)
+
+### Maintenance
+
+- Bump mocha from 8.2.0 to 8.2.1 (#25)
+- Bump actions/checkout from v2.3.2 to v2.3.4 (#26)
+- Bump actions/setup-node from v2.1.1 to v2.1.2 (#23)
+- Bump mocha from 8.1.1 to 8.2.0 (#24)
+- Bump mocha from 8.1.0 to 8.1.1 (#18)
+- Bump actions/checkout from v2.3.1 to v2.3.2 (#19)
+- Bump mocha from 8.0.1 to 8.1.0 (#17)
+- Bump actions/setup-node from v2.1.0 to v2.1.1 (#16)
+
+**4.0.0** — <small>_July 18, 2020_</small> — [Diff](https://github.com/archiverjs/node-crc32-stream/compare/3.0.1...4.0.0)
+
+* Bump actions/checkout from v1 to v2.3.1 (#13) @dependabot
+* Bump readable-stream from 3.4.0 to 3.6.0 (#15) @dependabot
+* Bump mocha from 6.2.0 to 8.0.1 (#14) @dependabot
+* Bump actions/setup-node from v1 to v2.1.0 (#12) @dependabot
+* remove support for node < 10 (#11) @ctalkington
+
+**3.0.1** — <small>_August 2, 2019_</small> — [Diff](https://github.com/archiverjs/node-crc32-stream/compare/3.0.0...3.0.1)
+
+- update dependencies
+
+**3.0.0** — <small>_April 29, 2019_</small> — [Diff](https://github.com/archiverjs/node-crc32-stream/compare/2.0.0...3.0.0)
+
+- Require Node.js 6.9, update dependencies, use modern JS syntax (GH #10)
+- Do not use the deprecated Buffer() constructor (GH #8)
+- remove node v0.10 and v0.12 support
+
+**2.0.0** — <small>_February 13, 2017_</small> — [Diff](https://github.com/archiverjs/node-crc32-stream/compare/1.0.1...2.0.0)
+
+- adopt nodejs core Hash API (GH #4)
+
+**1.0.1** — <small>_January 12, 2016_</small> — [Diff](https://github.com/archiverjs/node-crc32-stream/compare/1.0.0...1.0.1)
+
+- Switch to node-crc for performance (GH #3)
+- bump deps to ensure latest versions are used.
+
+[Release Archive](https://github.com/archiverjs/node-crc32-stream/releases)

mc_test/node_modules/crc32-stream/LICENSE

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+Copyright (c) 2014 Chris Talkington, contributors.
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.

mc_test/node_modules/crc32-stream/README.md

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+# CRC32 Stream
+
+crc32-stream is a streaming CRC32 checksumer. It uses the [crc](https://www.npmjs.org/package/crc) module behind the scenes to reliably handle binary data and fancy character sets. Data is passed through untouched.
+
+### Install
+
+```bash
+npm install crc32-stream --save
+```
+
+You can also use `npm install https://github.com/archiverjs/node-crc32-stream/archive/master.tar.gz` to test upcoming versions.
+
+### Usage
+
+#### CRC32Stream
+
+Inherits [Transform Stream](http://nodejs.org/api/stream.html#stream_class_stream_transform) options and methods.
+
+```js
+const {CRC32Stream} = require('crc32-stream');
+
+const source = fs.createReadStream('file.txt');
+const checksum = new CRC32Stream();
+
+checksum.on('end', function(err) {
+  // do something with checksum.digest() here
+});
+
+// either pipe it
+source.pipe(checksum);
+
+// or write it
+checksum.write('string');
+checksum.end();
+```
+
+#### DeflateCRC32Stream
+
+Inherits [zlib.DeflateRaw](http://nodejs.org/api/zlib.html#zlib_class_zlib_deflateraw) options and methods.
+
+```js
+const {DeflateCRC32Stream} = require('crc32-stream');
+
+const source = fs.createReadStream('file.txt');
+const checksum = new DeflateCRC32Stream();
+
+checksum.on('end', function(err) {
+  // do something with checksum.digest() here
+});
+
+// either pipe it
+source.pipe(checksum);
+
+// or write it
+checksum.write('string');
+checksum.end();
+```
+
+### Instance API
+
+#### digest()
+
+Returns the checksum digest in unsigned form.
+
+#### hex()
+
+Returns the hexadecimal representation of the checksum digest. (ie E81722F0)
+
+#### size(compressed)
+
+Returns the raw size/length of passed-through data.
+
+If `compressed` is `true`, it returns compressed length instead. (DeflateCRC32Stream)
+
+## Things of Interest
+
+- [Changelog](https://github.com/archiverjs/node-crc32-stream/releases)
+- [Contributing](https://github.com/archiverjs/node-crc32-stream/blob/master/CONTRIBUTING.md)
+- [MIT License](https://github.com/archiverjs/node-crc32-stream/blob/master/LICENSE-MIT)

mc_test/node_modules/crc32-stream/lib/crc32-stream.js

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+/**
+ * node-crc32-stream
+ *
+ * Copyright (c) 2014 Chris Talkington, contributors.
+ * Licensed under the MIT license.
+ * https://github.com/archiverjs/node-crc32-stream/blob/master/LICENSE-MIT
+ */
+
+ 'use strict';
+
+const {Transform} = require('readable-stream');
+
+const crc32 = require('crc-32');
+
+class CRC32Stream extends Transform {
+  constructor(options) {
+    super(options);
+    this.checksum = Buffer.allocUnsafe(4);
+    this.checksum.writeInt32BE(0, 0);
+
+    this.rawSize = 0;
+  }
+
+  _transform(chunk, encoding, callback) {
+    if (chunk) {
+      this.checksum = crc32.buf(chunk, this.checksum) >>> 0;
+      this.rawSize += chunk.length;
+    }
+
+    callback(null, chunk);
+  }
+
+  digest(encoding) {
+    const checksum = Buffer.allocUnsafe(4);
+    checksum.writeUInt32BE(this.checksum >>> 0, 0);
+    return encoding ? checksum.toString(encoding) : checksum;
+  }
+
+  hex() {
+    return this.digest('hex').toUpperCase();
+  }
+
+  size() {
+    return this.rawSize;
+  }
+}
+
+module.exports = CRC32Stream;

mc_test/node_modules/crc32-stream/lib/deflate-crc32-stream.js

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+/**
+ * node-crc32-stream
+ *
+ * Copyright (c) 2014 Chris Talkington, contributors.
+ * Licensed under the MIT license.
+ * https://github.com/archiverjs/node-crc32-stream/blob/master/LICENSE-MIT
+ */
+
+'use strict';
+
+const {DeflateRaw} = require('zlib');
+
+const crc32 = require('crc-32');
+
+class DeflateCRC32Stream extends DeflateRaw {
+  constructor(options) {
+    super(options);
+
+    this.checksum = Buffer.allocUnsafe(4);
+    this.checksum.writeInt32BE(0, 0);
+
+    this.rawSize = 0;
+    this.compressedSize = 0;
+  }
+
+  push(chunk, encoding) {
+    if (chunk) {
+      this.compressedSize += chunk.length;
+    }
+
+    return super.push(chunk, encoding);
+  }
+
+  _transform(chunk, encoding, callback) {
+    if (chunk) {
+      this.checksum = crc32.buf(chunk, this.checksum) >>> 0;
+      this.rawSize += chunk.length;
+    }
+
+    super._transform(chunk, encoding, callback)
+  }
+
+  digest(encoding) {
+    const checksum = Buffer.allocUnsafe(4);
+    checksum.writeUInt32BE(this.checksum >>> 0, 0);
+    return encoding ? checksum.toString(encoding) : checksum;
+  }
+
+  hex() {
+    return this.digest('hex').toUpperCase();
+  }
+
+  size(compressed = false) {
+    if (compressed) {
+      return this.compressedSize;
+    } else {
+      return this.rawSize;
+    }
+  }
+}
+
+module.exports = DeflateCRC32Stream;

mc_test/node_modules/crc32-stream/lib/index.js

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+/**
+ * node-crc32-stream
+ *
+ * Copyright (c) 2014 Chris Talkington, contributors.
+ * Licensed under the MIT license.
+ * https://github.com/archiverjs/node-crc32-stream/blob/master/LICENSE-MIT
+ */
+
+'use strict';
+
+module.exports = {
+  CRC32Stream: require('./crc32-stream'),
+  DeflateCRC32Stream: require('./deflate-crc32-stream')
+}

mc_test/node_modules/crc32-stream/package.json

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+{
+  "name": "crc32-stream",
+  "version": "4.0.3",
+  "description": "a streaming CRC32 checksumer",
+  "homepage": "https://github.com/archiverjs/node-crc32-stream",
+  "author": {
+    "name": "Chris Talkington",
+    "url": "http://christalkington.com/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/archiverjs/node-crc32-stream.git"
+  },
+  "bugs": {
+    "url": "https://github.com/archiverjs/node-crc32-stream/issues"
+  },
+  "license": "MIT",
+  "main": "lib/index.js",
+  "files": [
+    "lib"
+  ],
+  "engines": {
+    "node": ">= 10"
+  },
+  "scripts": {
+    "test": "mocha --reporter dot"
+  },
+  "dependencies": {
+    "crc-32": "^1.2.0",
+    "readable-stream": "^3.4.0"
+  },
+  "devDependencies": {
+    "chai": "4.3.8",
+    "mocha": "9.2.2"
+  },
+  "keywords": [
+    "crc32-stream",
+    "crc32",
+    "stream",
+    "checksum"
+  ],
+  "publishConfig": {
+    "registry": "https://registry.npmjs.org/"
+  }
+}