com.io7m.gtyrell.github.GTGithubRepositories Maven / Gradle / Ivy

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Git mirroring tool (GitHub backend)
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/*
 * Copyright © 2017  http://io7m.com
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

package com.io7m.gtyrell.github;

import com.io7m.gtyrell.core.GTGitExecutableType;
import com.io7m.gtyrell.core.GTRepositoryGroup;
import com.io7m.gtyrell.core.GTRepositoryGroupName;
import com.io7m.gtyrell.core.GTRepositoryGroupType;
import com.io7m.gtyrell.core.GTRepositoryName;
import com.io7m.gtyrell.core.GTRepositorySourceType;
import com.io7m.gtyrell.core.GTRepositoryType;
import com.io7m.jnull.NullCheck;
import javaslang.collection.HashMap;
import javaslang.collection.Map;
import org.kohsuke.github.GHMyself;
import org.kohsuke.github.GHRepository;
import org.kohsuke.github.GitHub;
import org.kohsuke.github.GitHubBuilder;
import org.kohsuke.github.PagedIterable;
import org.kohsuke.github.PagedIterator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Properties;

/**
 * A repository group producer that fetches the owned repositories of a single
 * (authenticated) user on GitHub.
 */

public final class GTGithubRepositories implements GTRepositorySourceType
{
  private static final Logger LOG;

  static {
    LOG = LoggerFactory.getLogger(GTGithubRepositories.class);
  }

  private final Properties props;
  private final String username;
  private final String password;

  private GTGithubRepositories(
    final String in_username,
    final String in_password)
  {
    this.username = NullCheck.notNull(in_username);
    this.password = NullCheck.notNull(in_password);
    this.props = new Properties();
    this.props.setProperty("login", this.username);
    this.props.setProperty("password", this.password);
  }

  /**
   * Create a new repository source.
   *
   * @param in_username The GitHub user
   * @param in_password The user's password
   *
   * @return A new source
   */

  public static GTRepositorySourceType newSource(
    final String in_username,
    final String in_password)
  {
    return new GTGithubRepositories(in_username, in_password);
  }

  @Override
  public GTRepositoryGroupType get(
    final GTGitExecutableType in_git)
    throws IOException
  {
    NullCheck.notNull(in_git, "Git");

    try {
      final GitHubBuilder ghb = GitHubBuilder.fromProperties(this.props);
      final GitHub gh = ghb.build();
      final GHMyself me = gh.getMyself();
      final String user = NullCheck.notNull(me.getLogin());
      final GTRepositoryGroupName group = GTRepositoryGroupName.of(user);

      Map repositories = HashMap.empty();
      final PagedIterable rs =
        me.listRepositories(100, GHMyself.RepositoryListFilter.OWNER);
      final PagedIterator rsi = rs.iterator();
      while (rsi.hasNext()) {
        final GHRepository r = rsi.next();

        LOG.debug("repository: {} {}", r.getName(), r.getGitTransportUrl());

        final GTRepositoryName name = GTRepositoryName.of(r.getName());
        final URI clone_url = new URI(r.gitHttpTransportUrl());

        repositories = repositories.put(
          name,
          new GTGithubRepository(
            in_git,
            this.username,
            this.password,
            group,
            name,
            clone_url));
      }

      return GTRepositoryGroup.of(group, repositories);
    } catch (final URISyntaxException e) {
      throw new IOException(e);
    }
  }
}