private void addIssueIdsFromCommitMessage()

in src/main/java/com/googlesource/gerrit/plugins/its/base/util/IssueExtractor.java [147:211]
48 lines of code
14 McCabe index (conditional complexity)

  private void addIssueIdsFromCommitMessage(Map<String, Set<String>> ret, String commitMessage) {
    addIssuesOccurrence(commitMessage, "somewhere", ret);

    String[] lines = commitMessage.split("\n");
    if (lines.length > 0) {
      // Parsing for "subject"
      addIssuesOccurrence(lines[0], "subject", ret);

      // Determining footer line numbers
      int currentLine = lines.length - 1;
      while (currentLine >= 0 && lines[currentLine].isEmpty()) {
        currentLine--;
      }
      int footerEnd = currentLine + 1;
      while (currentLine >= 0 && !lines[currentLine].isEmpty()) {
        currentLine--;
      }
      int footerStart = currentLine + 1;

      if (footerStart == 0) {
        // The first block of non-blank lines is not considered a footer, so
        // we adjust that.
        footerStart = -1;
      }

      // Parsing for "body", and "footer"
      String body = null;
      String footer = null;
      if (footerStart == -1) {
        // No footer could be found. So all lines after the first one (that's
        // the subject) is the body.
        if (lines.length > 0) {
          body = String.join("\n", copyOfRange(lines, 1, lines.length));
        }
      } else {
        body = String.join("\n", copyOfRange(lines, 1, footerStart - 1));

        StringBuilder footerBuilder = new StringBuilder();
        for (int lineIdx = footerStart; lineIdx < footerEnd; lineIdx++) {
          String line = lines[lineIdx];

          // Adding occurrences for footer keys
          int colonIdx = line.indexOf(':');
          if (colonIdx > 0) {
            // tag of length at least 1
            String tag = line.substring(0, colonIdx);
            addIssuesOccurrence(line, "footer-" + tag, ret);
          }

          // Putting back together the footer to a single String
          if (lineIdx > footerStart) {
            footerBuilder.append('\n');
          }
          footerBuilder.append(line);
        }
        footer = String.join("\n", copyOfRange(lines, footerStart, footerEnd));
      }
      if (body != null) {
        addIssuesOccurrence(body, "body", ret);
      }
      if (footer != null) {
        addIssuesOccurrence(footer, "footer", ret);
      }
    }
  }