Support publishing packages with many long filenames.

sdk/lib/_internal/pub/test/lish/many_files_test.dart

+// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:convert';
+import 'dart:io';
+import 'dart:math' as math;
+
+import 'package:path/path.dart' as p;
+import 'package:scheduled_test/scheduled_test.dart';
+import 'package:scheduled_test/scheduled_server.dart';
+import 'package:shelf/shelf.dart' as shelf;
+
+import '../../lib/src/exit_codes.dart' as exit_codes;
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+import 'utils.dart';
+
+/// The depth of directories to use when creating files to tickle
+/// argument-length limits.
+final _depth = 10;
+
+/// The maximum number of characters in a path component.
+///
+/// Only Windows has this tight of a constraint, but we abide by it on all
+/// operating systems to avoid specializing the test too much.
+final _componentMax = 255;
+
+main() {
+  initConfig();
+
+  integration('archives and uploads a package', () {
+    d.validPackage.create();
+
+    var argMax;
+    if (Platform.isWindows) {
+      // On Windows, the maximum argument list length is 8^5 bytes.
+      argMax = math.pow(8, 5);
+    } else {
+      // On POSIX, the maximum argument list length can be retrieved
+      // automatically.
+      var result = Process.runSync("getconf", ["ARG_MAX"]);
+      if (result.exitCode != 0) {
+        fail("getconf failed with exit code ${result.exitCode}:\n"
+            "${result.stderr}");
+      }
+
+      argMax = int.parse(result.stdout);
+    }
+
+    schedule(() {
+      var dir = p.join(sandboxDir, appPath);
+      for (var i = 0; i < _depth; i++) {
+        dir = p.join(dir, "x" * _componentMax);
+        new Directory(dir).createSync();
+      }
+
+      var pathLength = (_componentMax + 1) * _depth;
+      var filesToCreate = (argMax / pathLength).ceil();
+      for (var i = 0; i < filesToCreate; i++) {
+        var filePath = p.join(dir, "x" * _componentMax);
+        var iString = i.toString();
+        filePath = filePath.substring(0, filePath.length - iString.length) +
+            iString;
+
+        new File(filePath).writeAsStringSync("");
+      }
+    });
+
+    var server = new ScheduledServer();
+    d.credentialsFile(server, 'access token').create();
+    var pub = startPublish(server);
+
+    confirmPublish(pub);
+    handleUploadForm(server);
+    handleUpload(server);
+
+    server.handle('GET', '/create', (request) {
+      return new shelf.Response.ok(JSON.encode({
+        'success': {'message': 'Package test_pkg 1.0.0 uploaded!'}
+      }));
+    });
+
+    pub.stdout.expect(startsWith('Uploading...'));
+    pub.stdout.expect('Package test_pkg 1.0.0 uploaded!');
+    pub.shouldExit(exit_codes.SUCCESS);
+  });
+}