public static Map buildChangedFilesAttributesFor()

in git-server/src/main/java/jetbrains/buildServer/buildTriggers/vcs/git/VcsChangeTreeWalk.java [60:103]

41 lines of code
11 McCabe index (conditional complexity)


  public static Map<String, String> buildChangedFilesAttributesFor(@NotNull Map<String, ? extends Collection<String>> perParentChangedFiles) {
    if (perParentChangedFiles.isEmpty())
      return Collections.emptyMap();
    Map<String, String> result = new HashMap<>();
    for (Map.Entry<String, ? extends Collection<String>> entry : perParentChangedFiles.entrySet()) {
      String parentCommit = entry.getKey();
      Collection<String> files = entry.getValue();
      Map<String, List<String>> groupedByCommonPrefix = new HashMap<>();
      for (String path: files) {
        int separatorIdx = path.lastIndexOf('/');
        String prefix = "";
        String fileName = path;
        if (separatorIdx != -1) {
          prefix = path.substring(0, separatorIdx + 1);
          fileName = path.substring(separatorIdx+1);
        }

        final String finalFileName = fileName;
        groupedByCommonPrefix.compute(prefix, (k, v) -> {
          if (v == null) {
            v = new ArrayList<>();
          }
          v.add(finalFileName);
          return v;
        });
      }

      StringBuilder value = new StringBuilder();
      for (String path: groupedByCommonPrefix.keySet()) {
        if (path.length() > 0) {
          value.append(path).append('\n');
        }
        for (String fileName: groupedByCommonPrefix.get(path)) {
          if (path.length() > 0) {
            value.append("./");
          }
          value.append(fileName).append('\n');
        }
      }

      result.put("teamcity.transient.changedFiles." + parentCommit, value.length() > 0 ? value.substring(0, value.length()-1) : "");
    }
    return result;
  }