io.github.oliviercailloux.javagrade.utils.FindEnds Maven / Gradle / Ivy

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package io.github.oliviercailloux.javagrade.utils;

import static com.google.common.base.Preconditions.checkNotNull;
import static io.github.oliviercailloux.jaris.exceptions.Unchecker.IO_UNCHECKER;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import io.github.oliviercailloux.git.common.GitUri;
import io.github.oliviercailloux.git.factory.GitCloner;
import io.github.oliviercailloux.git.github.model.GitHubToken;
import io.github.oliviercailloux.git.github.model.RepositoryCoordinates;
import io.github.oliviercailloux.git.github.model.RepositoryCoordinatesWithPrefix;
import io.github.oliviercailloux.git.github.services.GitHubFetcherV3;
import io.github.oliviercailloux.jaris.exceptions.Unchecker;
import io.github.oliviercailloux.utils.Utils;
import java.nio.file.Path;
import java.util.List;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.ListBranchCommand.ListMode;
import org.eclipse.jgit.lib.Ref;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class FindEnds {
  @SuppressWarnings("unused")
  private static final Logger LOGGER = LoggerFactory.getLogger(FindEnds.class);

  public static FindEnds withPrefix(String prefix) {
    return new FindEnds(prefix);
  }

  public static void main(String[] args) {
    final ImmutableSet ended =
        FindEnds.withPrefix("colors").getEnded();
    LOGGER.info("Ended: {}.", ended);
  }

  private static final Path WORK_DIR = Utils.getTempDirectory();
  private final String prefix;

  private FindEnds(String prefix) {
    this.prefix = checkNotNull(prefix);
  }

  public ImmutableSet getEnded() {
    final ImmutableList repositories;
    try (GitHubFetcherV3 fetcher = GitHubFetcherV3.using(GitHubToken.getRealInstance())) {
      repositories = fetcher.getRepositoriesWithPrefix("oliviercailloux-org", prefix);
    }
    final ImmutableSet ended =
        repositories.stream().filter(this::hasEnd).collect(ImmutableSet.toImmutableSet());
    return ended;
  }

  public boolean hasEnd(RepositoryCoordinates coord) {
    final Path projectsBaseDir = WORK_DIR.resolve(prefix);
    final Path projectDir = projectsBaseDir.resolve(coord.getRepositoryName());
    /* False because sometimes the main branch has a strange name. */
    GitCloner.create().download(GitUri.fromUri(coord.asUri()), projectDir).close();

    try (Git git = IO_UNCHECKER.getUsing(() -> Git.open(projectDir.resolve(".git").toFile()))) {
      final List remoteRefs = Unchecker.wrappingWith(IllegalStateException::new)
          .getUsing(() -> git.branchList().setListMode(ListMode.REMOTE).call());
      LOGGER.info("Remote refs for {}: {}.", coord, remoteRefs);
      return remoteRefs.stream()
          .anyMatch(r -> r.getName().equalsIgnoreCase("refs/remotes/origin/end"));
    }
  }
}