Move mojom to public/dart

mojo/dart/mojom/lib/generate.dart

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-/// This script generates Mojo bindings for a Dart package. See README.md for
-/// details.
-
-library generate;
-
-import 'dart:async';
-import 'dart:convert';
-import 'dart:io';
-
-import 'package:args/args.dart' as args;
-import 'package:path/path.dart' as path;
-
-part 'src/options.dart';
-part 'src/utils.dart';
-
-bool errorOnDuplicate;
-bool verbose;
-bool dryRun;
-Map<String, String> duplicateDetection;
-
-/// Searches for .mojom.dart files under [mojomDirectory] and copies them to
-/// [data.currentPackage].
-copyAction(PackageIterData data, Directory mojomDirectory) async {
-  await for (var mojom in mojomDirectory.list(recursive: true)) {
-    if (mojom is! File) continue;
-    if (!isMojomDart(mojom.path)) continue;
-    if (verbose) print("Found $mojom");
-
-    final relative = path.relative(mojom.path, from: mojomDirectory.path);
-    final dest = path.join(data.currentPackage.path, relative);
-    final destDirectory = new Directory(path.dirname(dest));
-
-    if (errorOnDuplicate && duplicateDetection.containsKey(dest)) {
-      String original = duplicateDetection[dest];
-      throw new GenerationError(
-          'Conflict: Both ${original} and ${mojom.path} supply ${dest}');
-    }
-    duplicateDetection[dest] = mojom.path;
-
-    if (verbose || dryRun) {
-      print('Copying $mojom to $dest');
-    }
-
-    if (!dryRun) {
-      final File source = new File(mojom.path);
-      if (verbose) print("Ensuring $destDirectory exists");
-      await destDirectory.create(recursive: true);
-      source.copy(dest);
-    }
-  }
-}
-
-/// Searches for .mojom files under [mojomDirectory], generates .mojom.dart
-/// files for them, and copies them to the 'mojom' package.
-generateAction(GenerateIterData data, Directory mojomDirectory) async {
-  final packageRoot = data.currentPackage.parent;
-  await for (var mojom in mojomDirectory.list(recursive: true)) {
-    if (mojom is! File) continue;
-    if (!isMojom(mojom.path)) continue;
-    if (verbose) print("Found $mojom");
-
-    final script = path.join(
-        data.mojoSdk.path, 'tools', 'bindings', 'mojom_bindings_generator.py');
-    final sdkInc = path.normalize(path.join(data.mojoSdk.path, '..', '..'));
-    final outputDir = await data.currentPackage.createTemp();
-    final output = outputDir.path;
-    final arguments = [
-      '--use_bundled_pylibs',
-      '-g',
-      'dart',
-      '-o',
-      output,
-      // TODO(zra): Are other include paths needed?
-      '-I',
-      sdkInc,
-      '-I',
-      mojomDirectory.path,
-      mojom.path
-    ];
-
-    if (verbose || dryRun) {
-      print('Generating $mojom');
-      print('$script ${arguments.join(" ")}');
-    }
-    if (!dryRun) {
-      final result = await Process.run(script, arguments);
-      if (result.exitCode != 0) {
-        throw new GenerationError("$script failed:\n${result.stderr}");
-      }
-
-      // Generated .mojom.dart is under $output/dart-pkg/$PACKAGE/lib/$X
-      // Move $X to $PACKAGE_ROOT/$PACKAGE/$X
-      final generatedDirName = path.join(output, 'dart-pkg');
-      final generatedDir = new Directory(generatedDirName);
-      await for (var genpack in generatedDir.list()) {
-        if (genpack is! Directory) continue;
-        var libDir = new Directory(path.join(genpack.path, 'lib'));
-        var name = path.relative(genpack.path, from: generatedDirName);
-        var copyData = new GenerateIterData(data.mojoSdk);
-        copyData.currentPackage =
-            new Directory(path.join(packageRoot.path, name));
-        await copyAction(copyData, libDir);
-      }
-
-      await outputDir.delete(recursive: true);
-    }
-  }
-}
-
-/// In each package, look for a file named .mojoms. Populate a package's
-/// mojom directory with the downloaded mojoms, creating the directory if
-/// needed. The .mojoms file should be formatted as follows:
-/// '''
-/// root: https://www.example.com/mojoms
-/// path/to/some/mojom1.mojom
-/// path/to/some/other/mojom2.mojom
-///
-/// root: https://www.example-two.com/mojoms
-/// path/to/example/two/mojom1.mojom
-/// ...
-///
-/// Lines beginning with '#' are ignored.
-downloadAction(GenerateIterData _, Directory packageDirectory) async {
-  var mojomsPath = path.join(packageDirectory.path, '.mojoms');
-  var mojomsFile = new File(mojomsPath);
-  if (!await mojomsFile.exists()) return;
-  if (verbose) print("Found .mojoms file: $mojomsPath");
-
-  Directory mojomsDir;
-  var httpClient = new HttpClient();
-  int repoCount = 0;
-  int mojomCount = 0;
-  String repoRoot;
-  for (String line in await mojomsFile.readAsLines()) {
-    line = line.trim();
-    if (line.isEmpty || line.startsWith('#')) continue;
-
-    if (line.startsWith('root:')) {
-      if ((mojomsDir != null) && (mojomCount == 0)) {
-        throw new DownloadError("root with no mojoms: $repoRoot");
-      }
-      mojomCount = 0;
-      var rootWords = line.split(" ");
-      if (rootWords.length != 2) {
-        throw new DownloadError("Malformed root: $line");
-      }
-      repoRoot = rootWords[1];
-      if (verbose) print("Found repo root: $repoRoot");
-      if (!repoRoot.startsWith('http://') && !repoRoot.startsWith('https://')) {
-        throw new DownloadError(
-            'Mojom repo "root" should be an http or https URL: $line');
-      }
-      mojomsDir = new Directory(path.join(
-          packageDirectory.parent.path, 'mojm.repo.$repoCount', 'mojom'));
-      await mojomsDir.create(recursive: true);
-      repoCount++;
-    } else {
-      if (mojomsDir == null) {
-        throw new DownloadError('Malformed .mojoms file: $mojomsPath');
-      }
-      String url = "$repoRoot/$line";
-      if (verbose) print("Found $url");
-      String fileString = await getUrl(httpClient, url);
-      if (verbose) print("Downloaded $url");
-      String filePath = path.join(mojomsDir.path, line);
-      var file = new File(filePath);
-      if (!await file.exists()) {
-        await file.create(recursive: true);
-        await file.writeAsString(fileString);
-        if (verbose) print("Wrote $filePath");
-      }
-      mojomCount++;
-    }
-  }
-}
-
-/// The "mojom" entry in [packages] is a symbolic link to the mojom package in
-/// the global pub cache directory. Because we might need to write package
-/// specific .mojom.dart files into the mojom package, we need to make a local
-/// copy of it.
-copyMojomPackage(Directory packages) async {
-  var link = new Link(path.join(packages.path, "mojom"));
-  if (!await link.exists()) {
-    // If the "mojom" entry in packages is not a symbolic link, then do nothing.
-    return;
-  }
-
-  var realpath = await link.resolveSymbolicLinks();
-  var realDir = new Directory(realpath);
-  var mojomDir = new Directory(path.join(packages.path, "mojom"));
-
-  await link.delete();
-  await mojomDir.create();
-  await for (var file in realDir.list(recursive: true)) {
-    if (file is File) {
-      var relative = path.relative(file.path, from: realDir.path);
-      var destPath = path.join(mojomDir.path, relative);
-      var destDir = new Directory(path.dirname(destPath));
-      await destDir.create(recursive: true);
-      await file.copy(path.join(mojomDir.path, relative));
-    }
-  }
-}
-
-main(List<String> arguments) async {
-  var options = await parseArguments(arguments);
-  duplicateDetection = new Map<String, String>();
-  errorOnDuplicate = options.errorOnDuplicate;
-  verbose = options.verbose;
-  dryRun = options.dryRun;
-
-  // mojoms without a DartPackage annotation, and pregenerated mojoms from
-  // [options.additionalDirs] will go into the mojom package, so we make a local
-  // copy of it so we don't pollute the global pub cache.
-  //
-  // TODO(zra): Fail if a mojom has no DartPackage annotation, and remove the
-  // need for [options.additionalDirs].
-  if (!dryRun) {
-    await copyMojomPackage(options.packages);
-  }
-
-  // Download .mojom files. These will be picked up by the generation step
-  // below.
-  if (options.download) {
-    await packageDirIter(options.packages, null, downloadAction);
-  }
-
-  // Generate mojom files.
-  if (options.generate) {
-    await mojomDirIter(options.packages, new GenerateIterData(options.mojoSdk),
-        generateAction);
-  }
-
-  // TODO(zra): As mentioned above, this should go away.
-  // Copy pregenerated files from specified external directories into the
-  // mojom package.
-  final data = new GenerateIterData(options.mojoSdk);
-  data.currentPackage = options.mojomPackage;
-  for (var mojomDir in options.additionalDirs) {
-    await copyAction(data, mojomDir);
-    if (options.generate) {
-      await generateAction(data, mojomDir);
-    }
-  }
-}