Method ExternalFile

src/model/ExternalFile.cpp:216–272

  }

  ExternalFile::ExternalFile(const Model& model, const std::string& filename, bool copyFile) : ResourceObject(ExternalFile::iddObjectType(), model) {
    OS_ASSERT(getImpl<detail::ExternalFile_Impl>());

    WorkflowJSON workflow = model.workflowJSON();

    // we expect all strings to be UTF-8 encoded
    path p = toPath(filename);
    if (!exists(p)) {
      boost::optional<path> op = workflow.findFile(filename);
      if (!op) {
        this->remove();
        LOG_AND_THROW("Cannot find file \"" << filename << "\" for " << this->briefDescription());
      }
      p = op.get();
    }
    OS_ASSERT(exists(p));

    bool ok;
    if (copyFile) {
      path destDir;
      std::vector<path> absoluteFilePaths = workflow.absoluteFilePaths();
      if (absoluteFilePaths.empty()) {
        destDir = workflow.absoluteRootDir();
      } else {
        destDir = absoluteFilePaths[0];
      }
      path dest = destDir / p.filename();

      if (exists(dest)) {
        if (checksum(p) != checksum(dest)) {
          this->remove();
          LOG_AND_THROW("File \"" << p.filename() << "\" already exists in \"" << destDir << "\"");
        }
      } else {

        try {
          makeParentFolder(dest, path(), true);
        } catch (std::exception&) {
          this->remove();
          LOG_AND_THROW("Failed to created parent folder at \"" << dest << "\"");
        }
        try {
          boost::filesystem::copy(p, dest);
        } catch (std::exception&) {
          this->remove();
          LOG_AND_THROW("Failed to copy file from \"" << p << "\" to \"" << dest << "\"");
        }
      }
      OS_ASSERT(exists(dest));

      ok = setFileName(toString(dest.filename()));
      OS_ASSERT(ok);
    } else {
      ok = setFileName(filename);
      OS_ASSERT(ok);
    }
  }