Move tools/testing/dart/version.dart into tools/release

tools/testing/dart/version.dart

-// Copyright (c) 2012, 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.
-
-/**
- * This file contains functionality for getting dart version numbers using
- * our standard version construction method. Systems that does not include this
- * file should emulate the structure for revision numbers that we have here.
- *
- * The version number of a dart build is constructed as follows:
- *   1. The major, minor, build and patch numbers are extracted from the VERSION
- *      file in the root directory. We call these MAJOR, MINOR, BUILD and PATCH.
- *   2. The svn revision number for the current checkout is extracted from the
- *      source control system that is used in the current checkout. We call this
- *      REVISION.
- *   3. If this is _not_ a official build, i.e., this is not build by our
- *      buildbot infrastructure, we extract the user-name of the logged in
- *      person from the operating system. We call this USERNAME.
- *   4. The version number is constructed as follows:
- *      MAJOR.MINOR.BUILD.PATCH_rREVISION_USERNAME
- */
-
-library version;
-import "dart:io";
-
-/**
- * Generates version information for builds.
- */
-class Version {
-  String _versionFileName;
-  String USERNAME;
-  int REVISION;
-  int MAJOR;
-  int MINOR;
-  int BUILD;
-  int PATCH;
-
-  Version(Path versionFile) {
-    _versionFileName = versionFile.toNativePath();
-  }
-
-  /**
-   * Get the version number for this specific build using the version info
-   * from the VERSION file in the root directory and the revision info
-   * from the source control system of the current checkout.
-   */
-  Future<String> getVersion() {
-    File f = new File(_versionFileName);
-    Completer c = new Completer();
-    f.exists().then((existed) {
-      if (!existed) {
-        c.completeException("No VERSION file");
-        return;
-      }
-      StringInputStream input = new StringInputStream(f.openInputStream());
-      input.onLine = () {
-        var line = input.readLine();
-        if (line == null) {
-          c.completeException(
-              "VERSION input file seems to be in the wrong format");
-          return;
-        }
-        var values = line.split(" ");
-        if (values.length != 2) {
-          c.completeException(
-              "VERSION input file seems to be in the wrong format");
-          return;
-        }
-        var number = 0;
-        try {
-          number = int.parse(values[1]);
-        } catch (e) {
-          c.completeException("Can't parse version numbers, not an int");
-          return;
-        }
-        switch (values[0]) {
-          case "MAJOR":
-            MAJOR = number;
-            break;
-          case "MINOR":
-            MINOR = number;
-            break;
-          case "BUILD":
-            BUILD = number;
-            break;
-          case "PATCH":
-            PATCH = number;
-            break;
-          default:
-            c.completeException("Wrong format in VERSION file, line does not "
-                                "contain one of {MAJOR, MINOR, BUILD, PATCH}");
-            return;
-        }
-      };
-      input.onClosed = () {
-        // Only complete if we did not already complete with a failure.
-        if (!c.future.isComplete) {
-          getRevision().then((revision) {
-            REVISION = revision;
-            USERNAME = getUserName();
-            var userNameString = "";
-            if (USERNAME != '') userNameString = "_$USERNAME";
-            var revisionString = "";
-            if (revision != 0) revisionString = "_r$revision";
-            c.complete(
-                "$MAJOR.$MINOR.$BUILD.$PATCH$revisionString$userNameString");
-            return;
-          });
-        }
-      };
-    });
-    return c.future;
-  }
-
-  String getExecutableSuffix() {
-    if (Platform.operatingSystem == 'windows') {
-      return '.bat';
-    }
-    return '';
-  }
-
-  Future<int> getRevision() {
-    if (repositoryType == RepositoryType.UNKNOWN) {
-      return new Future.immediate(0);
-    }
-    var isSvn = repositoryType == RepositoryType.SVN;
-    var command = isSvn ? "svn" : "git";
-    command = "$command${getExecutableSuffix()}";
-    var arguments = isSvn ? ["info"] : ["svn", "info"];
-    return Process.run(command, arguments).transform((result) {
-      if (result.exitCode != 0) {
-        return 0;
-      }
-      // If anything goes wrong parsing the revision we simply return 0.
-      try {
-        // Extract the revision. It's located at the 8th line,
-        // 18 characters in.
-        String revisionString = result.stdout.split("\n")[8].substring(18);
-        return int.parse(revisionString);
-      } catch (e) {
-        return 0;
-      }
-    });
-  }
-
-  String getUserName() {
-    // TODO(ricow): Don't add this on the buildbot.
-    var key = "USER";
-    if (Platform.operatingSystem == 'windows') {
-      key = "USERNAME";
-    }
-    if (!Platform.environment.containsKey(key)) return "";
-    return Platform.environment[key];
-  }
-
-  RepositoryType get repositoryType {
-    if (new Directory(".svn").existsSync()) return RepositoryType.SVN;
-    if (new Directory(".git").existsSync()) return RepositoryType.GIT;
-    return RepositoryType.UNKNOWN;
-  }
-}
-
-class RepositoryType {
-  static final RepositoryType SVN = const RepositoryType("SVN");
-  static final RepositoryType GIT = const RepositoryType("GIT");
-  static final RepositoryType UNKNOWN = const RepositoryType("UNKNOWN");
-
-  const RepositoryType(String this.name);
-
-  static RepositoryType guessType() {
-    if (new Directory(".svn").existsSync()) return RepositoryType.SVN;
-    if (new Directory(".git").existsSync()) return RepositoryType.GIT;
-    return RepositoryType.UNKNOWN;
-  }
-
-  String toString() => name;
-
-  final String name;
-}