net.oneandone.stool.setup.Home Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of main Show documentation
Stool's main component. Java Library, cli, setup code.
There is a newer version: 4.0.3
/**
 * Copyright 1&1 Internet AG, https://github.com/1and1/
 *
 * 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.
 */
package net.oneandone.stool.setup;

import com.google.gson.Gson;
import net.oneandone.inline.Console;
import net.oneandone.setenv.Setenv;
import net.oneandone.stool.cli.Main;
import net.oneandone.stool.configuration.Autoconf;
import net.oneandone.stool.configuration.StoolConfiguration;
import net.oneandone.stool.extensions.ExtensionsFactory;
import net.oneandone.stool.util.Files;
import net.oneandone.stool.util.RmRfThread;
import net.oneandone.stool.util.Session;
import net.oneandone.sushi.fs.World;
import net.oneandone.sushi.fs.file.FileNode;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * Stool home directory. In unix file system hierarchy this comes close to the lib directory - although it contains
 * etc stuff (config.json) and log files.
 */
public class Home {
    public static void create(Console console, FileNode home, String config, boolean debian) throws IOException {
        create(console, home, home.getAbsolute(), config, debian);
    }

    public static void create(Console console, FileNode home, String homeVariable, String config, boolean debian) throws IOException {
        RmRfThread cleanup;
        Home obj;

        home.checkNotExists();
        cleanup = new RmRfThread(console);
        cleanup.add(home);
        Runtime.getRuntime().addShutdownHook(cleanup);
        obj = new Home(console, home, group(home.getWorld()), config);
        obj.setHomeVariable(homeVariable);
        obj.create(debian);
        // ok, no exceptions - we have a proper install directory: no cleanup
        Runtime.getRuntime().removeShutdownHook(cleanup);
    }

    public static String group(World world) throws IOException {
        FileNode file;
        String result;

        file = world.getTemp().createTempFile();
        result = file.getGroup().toString();
        file.deleteFile();
        return result;
    }

    private final Console console;
    public final FileNode dir;
    private String homeVariable;
    private final String group;
    /** json, may be null */
    private final String explicitConfig;

    public Home(Console console, FileNode dir, String group, String explicitConfig) {
        this.console = console;
        this.dir = dir;
        this.homeVariable = dir.getAbsolute();
        this.group = group;
        this.explicitConfig = explicitConfig;
    }

    public void setHomeVariable(String value) {
        this.homeVariable = value;
    }

    public void create(boolean debian) throws IOException {
        World world;
        Gson gson;
        StoolConfiguration conf;

        gson = gson();
        Files.createStoolDirectory(console.verbose, dir);
        exec("chgrp", group, dir.getAbsolute());
        // chgrp overwrites the permission - thus, i have to re-set permissions
        exec("chmod", "2775", dir.getAbsolute());

        world = dir.getWorld();
        Files.template(console.verbose, world.resource("templates/home"), dir, variables());
        conf = Autoconf.stool(dir, debian);
        if (explicitConfig != null) {
            conf = conf.createPatched(gson, explicitConfig);
        }
        conf.save(gson, dir);
        if (!conf.downloadCache.exists()) {
            Files.createStoolDirectory(console.verbose, conf.downloadCache);
        }
        for (String name : new String[]{"extensions", "backstages", "logs", "service-wrapper", "run", "tomcat", "system"}) {
            Files.createStoolDirectory(console.verbose, dir.join(name));
        }
        Files.stoolFile(versionFile().writeString(Main.versionString(world)));
        Files.stoolFile(dir.join("run/locks").mkfile());
    }

    public String version() throws IOException {
        return versionFile().readString().trim();
    }

    public FileNode versionFile() {
        return dir.join("version");
    }

    public Gson gson() {
        World world;
        Gson gson;

        world = dir.getWorld();
        gson = Session.gson(world, ExtensionsFactory.create(world));
        return gson;
    }

    public void exec(String ... cmd) throws IOException {
        Files.exec(console.info, dir, cmd);
    }

    private Map variables() {
        Map variables;

        variables = new HashMap<>();
        variables.put("stool.home", homeVariable);
        variables.put("setenv.rc", Setenv.get().setenvBash());
        return variables;
    }
}