/** @see GitCommand#execute() */
@Override
public Void execute() throws GitException {
remote = remote == null ? "origin" : remote;
reset();
commandLine.add("pull");
if (remote != null) {
commandLine.add(remote);
}
if (refSpec != null) {
commandLine.add(refSpec);
}
if (author != null) {
setCommandEnvironment("GIT_AUTHOR_NAME", author.getName());
setCommandEnvironment("GIT_AUTHOR_EMAIL", author.getEmail());
setCommandEnvironment("GIT_COMMITTER_NAME", author.getName());
setCommandEnvironment("GIT_COMMITTER_EMAIL", author.getEmail());
}
start();
pullResponse = newDto(PullResponse.class).withCommandOutput(Joiner.on("\n").join(lines));
return null;
}