public Collection getPathsToExclude()

in git-agent/src/main/java/jetbrains/buildServer/buildTriggers/vcs/git/agent/UpdaterImpl.java [591:637]
37 lines of code
12 McCabe index (conditional complexity)

  public Collection<String> getPathsToExclude(@NotNull VcsRootEntry otherRoot, @NotNull String targetPath) {
    final SortedSet<String> clashingPaths = new TreeSet<>(); // we need an ordered tree here

    for (IncludeRule rule : otherRoot.getCheckoutRules().getRootIncludeRules()) {
      final String to = rule.getTo();
      if (targetPath.equals(to)) {
        myLogger
          .warning("Two VCS roots shouldn't be checked out into the same folder: performing git clean for " + myRoot.getName() +
                   " will remove files checked out for " + otherRoot.getVcsRoot().getName() +
                   " and vice versa. Please configure checkout to separate folders using Checkout rules.");
        return Collections.emptyList();
      }

      if (targetPath.isEmpty()) {
        clashingPaths.add(to);
      } else if (to.isEmpty() || targetPath.startsWith(to + "/")) {
        // check if the targetPath is excluded by checkout rules. In this case the contents of the directory can be managed and cleaned by myRoot, without accidentally cleaning files of otherRoot
        // For example we don't want to add warning if we have separate vcs root for a submodule and have it exluded in the main vcs root, see TW-82946
        if (!canCheckoutIntoSameDir(targetPath, rule, otherRoot.getCheckoutRules().getExcludeRules())) {
          // case when this root is "inside" the other root - we can't fix this using exclude, only report
          // (TBD: another option is not to run clean at all)
          myLogger
            .warning("Two VCS roots shouldn't be checked out into the same folder: performing git clean for " + myRoot.getName() +
                     " may remove files checked out for " + otherRoot.getVcsRoot().getName() +
                     ". Please configure checkout to separate folders using Checkout rules.");
        }
      } else if (to.startsWith(targetPath + "/")) {
        clashingPaths.add(to.substring(targetPath.length() + 1));
      }
    }

    final List<String> result = new ArrayList<>();
    clashingPaths.forEach(path -> {
      // here we preserve more common paths
      if (result.isEmpty() || !path.startsWith(result.get(result.size() - 1) + "/")) result.add(path);
    });

    if (result.isEmpty() || CleanCommandUtil.isCleanCommandSupportsExclude(myPluginConfig.getGitVersion())) {
      return result;
    }

    myLogger
      .warning("git version " + myPluginConfig.getGitVersion() + " doesn't support --exclude option for clean command: performing git clean for " + myRoot.getName() +
               " will remove files checked out for " + otherRoot.getVcsRoot().getName() +
               " and vice versa. Please either update git executable to a version above " + GitVersion.DEPRECATED + " or configure checkout to separate folders using Checkout rules.");
    return Collections.emptyList();
  }