/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jclouds.scriptbuilder.statements.chef;
import static org.jclouds.scriptbuilder.domain.Statements.exec;
import org.jclouds.javax.annotation.Nullable;
import org.jclouds.scriptbuilder.domain.OsFamily;
import org.jclouds.scriptbuilder.domain.Statement;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableSet;
/**
* Installs Chef gems onto a host.
*
* @author Ignasi Barrera
*/
public class InstallChefGems implements Statement {
public static Builder builder() {
return new Builder();
}
public static class Builder {
private Optional<String> version = Optional.absent();
/**
* The version of the Chef gem to install.
* <p>
* Can be something like '>= 0.10.8'.
*/
public Builder version(@Nullable String version) {
this.version = Optional.fromNullable(version);
return this;
}
public InstallChefGems build() {
return new InstallChefGems(version);
}
}
private Optional<String> version;
protected InstallChefGems(Optional<String> version) {
this.version = version;
}
@Override
public String render(OsFamily family) {
if (family == OsFamily.WINDOWS) {
throw new UnsupportedOperationException("windows not yet implemented");
}
Statement statement = version.isPresent() ? exec(String.format("gem install chef -v '%s' --no-rdoc --no-ri",
version.get())) : exec("gem install chef --no-rdoc --no-ri");
return statement.render(family);
}
@Override
public Iterable<String> functionDependencies(OsFamily family) {
return ImmutableSet.<String> of();
}
}