示例#1
0
 static FileStateValue create(RootedPath rootedPath, @Nullable TimestampGranularityMonitor tsgm)
     throws InconsistentFilesystemException, IOException {
   Path path = rootedPath.asPath();
   // Stat, but don't throw an exception for the common case of a nonexistent file. This still
   // throws an IOException in case any other IO error is encountered.
   FileStatus stat = path.statIfFound(Symlinks.NOFOLLOW);
   if (stat == null) {
     return NONEXISTENT_FILE_STATE_NODE;
   }
   return createWithStatNoFollow(rootedPath, FileStatusWithDigestAdapter.adapt(stat), tsgm);
 }
示例#2
0
 static FileStateValue createWithStatNoFollow(
     RootedPath rootedPath,
     FileStatusWithDigest statNoFollow,
     @Nullable TimestampGranularityMonitor tsgm)
     throws InconsistentFilesystemException, IOException {
   Path path = rootedPath.asPath();
   if (statNoFollow.isFile()) {
     return statNoFollow.isSpecialFile()
         ? SpecialFileStateValue.fromStat(statNoFollow, tsgm)
         : RegularFileStateValue.fromPath(path, statNoFollow, tsgm);
   } else if (statNoFollow.isDirectory()) {
     return DIRECTORY_FILE_STATE_NODE;
   } else if (statNoFollow.isSymbolicLink()) {
     return new SymlinkFileStateValue(path.readSymbolicLinkUnchecked());
   }
   throw new InconsistentFilesystemException(
       "according to stat, existing path "
           + path
           + " is "
           + "neither a file nor directory nor symlink.");
 }
示例#3
0
  /**
   * If this instance is configured with DEPEND_ON_EXTERNAL_PKG and rootedPath is a file that isn't
   * under a package root then this adds a dependency on the //external package. If the action is
   * ERROR_OUT, it will throw an error instead.
   */
  public void maybeHandleExternalFile(RootedPath rootedPath, SkyFunction.Environment env)
      throws FileOutsidePackageRootsException {
    if (isInternal(rootedPath, pkgLocator.get())) {
      return;
    }

    externalFileSeen = true;
    if (externalFileAction == ExternalFileAction.ERROR_OUT) {
      throw new FileOutsidePackageRootsException(rootedPath);
    }

    // The outputBase may be null if we're not actually running a build.
    Path outputBase = pkgLocator.get().getOutputBase();
    if (outputBase != null
        && !rootedPath
            .asPath()
            .startsWith(pkgLocator.get().getOutputBase().getRelative(Label.EXTERNAL_PATH_PREFIX))) {
      return;
    }

    // For files that are under $OUTPUT_BASE/external, add a dependency on the //external package
    // so that if the WORKSPACE file changes, the File/DirectoryStateValue will be re-evaluated.
    //
    // Note that:
    // - We don't add a dependency on the parent directory at the package root boundary, so
    // the only transitive dependencies from files inside the package roots to external files
    // are through symlinks. So the upwards transitive closure of external files is small.
    // - The only way other than external repositories for external source files to get into the
    // skyframe graph in the first place is through symlinks outside the package roots, which we
    // neither want to encourage nor optimize for since it is not common. So the set of external
    // files is small.
    PackageValue pkgValue =
        (PackageValue) env.getValue(PackageValue.key(Label.EXTERNAL_PACKAGE_IDENTIFIER));
    if (pkgValue == null) {
      return;
    }
    Preconditions.checkState(!pkgValue.getPackage().containsErrors());
  }