io.wcm.devops.conga.tooling.cli.CongaCli.java Source code

Introduction

Here is the source code for io.wcm.devops.conga.tooling.cli.CongaCli.java

Source

/*
 * #%L
 * wcm.io
 * %%
 * Copyright (C) 2015 wcm.io
 * %%
 * Licensed 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.
 * #L%
 */
package io.wcm.devops.conga.tooling.cli;

import java.io.File;
import java.util.List;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Options;
import org.apache.commons.lang3.StringUtils;

import com.google.common.collect.ImmutableList;

import io.wcm.devops.conga.generator.Generator;
import io.wcm.devops.conga.resource.ResourceCollection;
import io.wcm.devops.conga.resource.ResourceLoader;

/**
 * CONGA command line interface.
 */
public final class CongaCli {

    /**
     * Command line options
     */
    public static final Options CLI_OPTIONS = new Options();
    static {
        CLI_OPTIONS.addOption("templateDir", true, "Source path with templates.");
        CLI_OPTIONS.addOption("roleDir", true, "Source path with role definitions.");
        CLI_OPTIONS.addOption("environmentDir", true, "Source path with environment definitions.");
        CLI_OPTIONS.addOption("target", true, "Target path for the generated configuration files.");
        CLI_OPTIONS.addOption("environments", true, "Selected environments to generate (separated by ',').");
        CLI_OPTIONS.addOption("?", false, "Print usage help.");
    }

    private CongaCli() {
        // static methods only
    }

    /**
     * CLI entry point
     * @param args Command line arguments
     * @throws Exception
     */
    //CHECKSTYLE:OFF
    public static void main(String[] args) throws Exception {
        //CHECKSTYLE:ON
        CommandLine commandLine = new DefaultParser().parse(CLI_OPTIONS, args);

        if (commandLine.hasOption("?")) {
            HelpFormatter formatter = new HelpFormatter();
            formatter.setWidth(150);
            formatter.printHelp("java -cp io.wcm.devops.conga.tooling.cli-<version>.jar "
                    + "io.wcm.devops.conga.tooling.cli.CongaCli <arguments>", CLI_OPTIONS);
            return;
        }

        String templateDir = commandLine.getOptionValue("templateDir", "templates");
        String roleDir = commandLine.getOptionValue("roleDir", "roles");
        String environmentDir = commandLine.getOptionValue("environmentDir", "environments");
        String targetDir = commandLine.getOptionValue("target", "target");
        String[] environments = StringUtils.split(commandLine.getOptionValue("environments", null), ",");

        ResourceLoader resourceLoader = new ResourceLoader();
        List<ResourceCollection> roleDirs = ImmutableList
                .of(resourceLoader.getResourceCollection(ResourceLoader.FILE_PREFIX + roleDir));
        List<ResourceCollection> templateDirs = ImmutableList
                .of(resourceLoader.getResourceCollection(ResourceLoader.FILE_PREFIX + templateDir));
        List<ResourceCollection> environmentDirs = ImmutableList
                .of(resourceLoader.getResourceCollection(ResourceLoader.FILE_PREFIX + environmentDir));
        File targetDirecotry = new File(targetDir);

        Generator generator = new Generator(roleDirs, templateDirs, environmentDirs, targetDirecotry);
        generator.setDeleteBeforeGenerate(true);
        generator.generate(environments);
    }

}