public ProgramCommandLine process()

in rake-runner-agent/src/jetbrains/buildServer/agent/ruby/rvm/RVMCommandLineProcessor.java [35:125]
74 lines of code
11 McCabe index (conditional complexity)

  public ProgramCommandLine process(@NotNull final BuildRunnerContext context, @NotNull final ProgramCommandLine origCommandLine)
    throws RunBuildException {
    if (!SystemInfo.isUnix) {
      return origCommandLine;
    }
    final AgentRunningBuild build = context.getBuild();

    // check if feature is enabled
    final Collection<AgentBuildFeature> features =
      build.getBuildFeaturesOfType(RubyEnvConfiguratorConstants.RUBY_ENV_CONFIGURATOR_FEATURE_TYPE);

    if (features.isEmpty()) {
      return origCommandLine;
    }

    final Map<String, String> featureParameters = features.iterator().next().getParameters();

    final RubyEnvConfiguratorConfiguration configuration = new RubyEnvConfiguratorConfiguration(featureParameters);

    // Remove some env variables
    final Map<String, String> environment = new HashMap<String, String>(origCommandLine.getEnvironment());
    String envsToUnsetStr = context.getRunnerParameters().get(RubyEnvConfiguratorService.ENVS_TO_UNSET_PARAM);
    if (envsToUnsetStr != null) {
      List<String> envs = StringUtil.split(envsToUnsetStr, ",");
      for (String key : envs) {
        environment.remove(key);
      }
    }

    switch (configuration.getType()) {
      case INTERPRETER_PATH: {
        return new ProgramCommandLine() {
          @NotNull
          public String getExecutablePath() throws RunBuildException {
            return origCommandLine.getExecutablePath();
          }

          @NotNull
          public String getWorkingDirectory() throws RunBuildException {
            return origCommandLine.getWorkingDirectory();
          }

          public String getCommandLineForLogging(PasswordReplacer passwordReplacer) throws RunBuildException {
            return origCommandLine.getCommandLineForLogging(passwordReplacer);
          }

          @NotNull
          public List<String> getArguments() throws RunBuildException {
            return origCommandLine.getArguments();
          }

          @NotNull
          public Map<String, String> getEnvironment() {
            return environment;
          }
        };
      }
      case RBENV:
      case RBENV_FILE:
      case RVM:
      case RVM_RUBY_VERSION:
      case RVMRC: {
        // Lets patch it!
        final File script = createScriptFile(origCommandLine, build.getAgentTempDirectory());

        return new ProgramCommandLine() {
          @NotNull
          public String getExecutablePath() {
            return CUSTOM_EXECUTABLE;
          }

          @NotNull
          public String getWorkingDirectory() throws RunBuildException {
            return origCommandLine.getWorkingDirectory();
          }

          @NotNull
          public List<String> getArguments() {
            return Collections.singletonList(script.getAbsolutePath());
          }

          @NotNull
          public Map<String, String> getEnvironment() {
            return environment;
          }
        };
      }
      default:
        throw new RunBuildException("Unsupported REC configuration type " + configuration.getType());
    }
  }