Allow prepending forward slash in entry name (#79)

.github/workflows/nodejs.yml

@@ -28,3 +28,8 @@ jobs:
         npm test
       env:
         CI: true
+    - name: Archive production artifacts
+      uses: actions/upload-artifact@v2
+      with:
+         name: tmp-zip
+         path: tmp/*.zip

index.js

@@ -42,6 +42,8 @@ var ZipStream = module.exports = function(options) {
     options.store = true;
   }
 
+  options.namePrependSlash = options.namePrependSlash || false;
+
   if (options.comment && options.comment.length > 0) {
     this.setComment(options.comment);
   }
@@ -60,6 +62,7 @@ ZipStream.prototype._normalizeFileData = function(data) {
   data = util.defaults(data, {
     type: 'file',
     name: null,
+    namePrependSlash: this.options.namePrependSlash,
     linkname: null,
     date: null,
     mode: null,
@@ -130,6 +133,10 @@ ZipStream.prototype.entry = function(source, data, callback) {
   var entry = new ZipArchiveEntry(data.name);
   entry.setTime(data.date, this.options.forceLocalTime);
 
+  if (data.namePrependSlash) {
+    entry.setName(data.name, true);
+  }
+
   if (data.store) {
     entry.setMethod(0);
   }

package.json

@@ -28,7 +28,7 @@
   },
   "dependencies": {
     "archiver-utils": "^2.1.0",
-    "compress-commons": "^4.0.2",
+    "compress-commons": "^4.1.0",
     "readable-stream": "^3.6.0"
   },
   "devDependencies": {

test/pack.js

@@ -331,6 +331,29 @@ describe('pack', function() {
         });
     });
 
+
+    it('should support appending forward slash to entry names', function(done) {
+        var archive = new Packer({
+            namePrependSlash: true,
+        });
+        var testStream = fs.createWriteStream('tmp/name-prepend-slash.zip');
+
+        testStream.on('close', function() {
+            done();
+        });
+
+        archive.pipe(testStream);
+
+        archive.entry('some text', { name: 'file', namePrependSlash: false, date: testDate }, function(err) {
+            if (err) throw err;
+            archive.entry('more text', { type: 'file', name: 'file-with-prefix', date: testDate }, function(err) {
+                if (err) throw err;
+                archive.finalize();
+            });
+        });
+    });
+
+
   });
 
 });