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Stool's main component. Java Library, cli, setup code.
/**
* 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 net.oneandone.stool.util.Environment;
import net.oneandone.stool.util.RmRfThread;
import net.oneandone.sushi.cli.ArgumentException;
import net.oneandone.sushi.cli.Cli;
import net.oneandone.sushi.cli.Command;
import net.oneandone.sushi.cli.Console;
import net.oneandone.sushi.cli.Option;
import net.oneandone.sushi.cli.Remaining;
import net.oneandone.sushi.cli.Value;
import net.oneandone.sushi.fs.World;
import net.oneandone.sushi.fs.file.FileNode;
import java.io.IOException;
import java.nio.file.Files;
/** Java installer. Creates an install directory (= "lib" with "bin" and "man") */
public class JavaSetup extends Cli implements Command {
public static void main(String[] args) {
System.exit(new JavaSetup().run(args));
}
public static void standalone(Console console, boolean withJar, FileNode install, String config) throws Exception {
RmRfThread cleanup;
FileNode bin;
install.checkNotExists();
cleanup = new RmRfThread(console);
cleanup.add(install);
Runtime.getRuntime().addShutdownHook(cleanup);
lib(console, install, config).create();
bin = install.join("bin");
BinMan.java(console, withJar, bin, install.join("man")).create();
bin.join("lib").mklink(install.getAbsolute());
// ok, no exceptions - we have a proper install directory: no cleanup
Runtime.getRuntime().removeShutdownHook(cleanup);
}
//--
/** Install directory */
@Value(name = "directory", position = 1)
private FileNode directory;
@Option("batch")
private boolean batch;
/** Name of a json file with global config fragment. */
private String config;
private final Environment environment;
private JavaSetup() {
environment = Environment.loadSystem();
}
@Remaining
public void remaining(String str) throws IOException {
if (config != null) {
throw new ArgumentException("duplicate initialConfig: " + str + " vs " + config);
}
config = subst(console.world.file(str).readString());
}
private static String subst(String str) {
StringBuilder builder;
String name;
char c;
builder = new StringBuilder(str.length());
for (int i = 0, len = str.length(); i < len; i++) {
c = str.charAt(i);
switch (c) {
case '$':
name = name(str, i + 1);
i += name.length();
builder.append(System.getenv(name));
break;
default:
builder.append(c);
break;
}
}
return builder.toString();
}
private static String name(String str, int start) {
int c;
int idx;
idx = start;
while (true) {
c = str.charAt(idx);
if (!Character.isAlphabetic(c) && c != '_') {
return str.substring(start, idx);
}
idx++;
}
}
@Override
public void printHelp() {
console.info.println("Setup stool " + versionString(console.world));
console.info.println("usage: setup-stool []");
console.info.println(" Create a new or upgrades an existing.");
console.info.println(" Does not modify anything outside the .");
console.info.println("documentation:");
console.info.println(" https://github.com/mlhartme/stool");
}
@Override
public void invoke() throws Exception {
FileNode bin;
FileNode binLib;
BinMan bm;
environment.setStoolBin(directory.join("bin"));
if (directory.exists()) {
if (!batch) {
console.info.println("Ready to upgrade " + directory.getAbsolute() + " to Stool " + versionString(console.world));
console.pressReturn();
}
lib(console, directory, config).upgrade();
bin = directory.join("bin");
binLib = bin.join("lib");
bm = BinMan.java(console, true, bin, directory.join("man"));
bm.remove();
bm.create();
if (Files.deleteIfExists(binLib.toPath())) {
console.info.println("cleaned previous lib: " + binLib);
}
binLib.mklink(directory.getAbsolute());
console.info.println("Done. To complete the installation:");
console.info.println("1. change your ~/.bashrc to");
console.info.println(" source " + directory.join("bin/stool-function").getAbsolute());
console.info.println("2. restart your shell");
} else {
if (!batch) {
console.info.println("Ready to install Stool " + versionString(console.world) + " to " + directory.getAbsolute());
console.pressReturn();
}
standalone(console, true, directory, config);
console.info.println("Done. To complete the installation:");
console.info.println("1. add");
console.info.println(" source " + directory.join("bin/stool-function").getAbsolute());
console.info.println(" to your ~/.bashrc");
console.info.println("2. restart your shell");
}
}
public static String versionString(World world) {
// don't use class.getPackage().getSpecificationVersion() because META-INF/META.MF
// 1) is not available in Webapps (in particular: dashboard)
// 2) is not available in test cases
try {
return world.resource("stool.version").readString().trim();
} catch (IOException e) {
throw new IllegalStateException("cannot determine version", e);
}
}
private static Lib lib(Console console, FileNode lib, String config) throws IOException {
return new Lib(console, lib, group(console.world), config);
}
private static String group(World world) throws IOException {
FileNode file;
String result;
file = world.getTemp().createTempFile();
result = file.getGroup().toString();
file.deleteFile();
return result;
}
}