private String getPrNum()

in merge-pull-request-trigger-server/src/main/java/org/jetbrains/teamcity/MergePullRequestTrigger.java [109:115]

• 7 lines of code
• 3 McCabe index (conditional complexity)

  private String getPrNum(@NotNull String branch) {
    if (branch.startsWith("refs/pull/") && branch.endsWith("/head")) {
      return branch.substring("refs/pull/".length(), branch.length() - "/head".length());
    } else {
      return null;
    }
  }