initial commit of actions

github/codeql-action-v2/node_modules/unzip-stream/lib/parser-stream.js

@@ -0,0 +1,51 @@
+var Transform = require('stream').Transform;
+var util = require('util');
+var UnzipStream = require('./unzip-stream');
+
+function ParserStream(opts) {
+    if (!(this instanceof ParserStream)) {
+        return new ParserStream(opts);
+    }
+
+    var transformOpts = opts || {};
+    Transform.call(this, { readableObjectMode: true });
+
+    this.opts = opts || {};
+    this.unzipStream = new UnzipStream(this.opts);
+
+    var self = this;
+    this.unzipStream.on('entry', function(entry) {
+        self.push(entry);
+    });
+    this.unzipStream.on('error', function(error) {
+        self.emit('error', error);
+    });
+}
+
+util.inherits(ParserStream, Transform);
+
+ParserStream.prototype._transform = function (chunk, encoding, cb) {
+    this.unzipStream.write(chunk, encoding, cb);
+}
+
+ParserStream.prototype._flush = function (cb) {
+    var self = this;
+    this.unzipStream.end(function() {
+        process.nextTick(function() { self.emit('close'); });
+        cb();
+    });
+}
+
+ParserStream.prototype.on = function(eventName, fn) {
+    if (eventName === 'entry') {
+        return Transform.prototype.on.call(this, 'data', fn);
+    }
+    return Transform.prototype.on.call(this, eventName, fn);
+}
+
+ParserStream.prototype.drainAll = function () {
+    this.unzipStream.drainAll();
+    return this.pipe(new Transform({ objectMode: true, transform: function (d, e, cb) { cb(); } }));
+}
+
+module.exports = ParserStream;