it.sonarlint.cli.tools.SonarlintInstaller.java Source code

Introduction

Here is the source code for it.sonarlint.cli.tools.SonarlintInstaller.java

Source

/*
 * SonarSource :: IT :: SonarLint CLI
 * Copyright (C) 2016 SonarSource
 * sonarqube@googlegroups.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */
package it.sonarlint.cli.tools;

import net.lingala.zip4j.core.ZipFile;
import org.apache.commons.lang3.SystemUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

/**
 * Attempts to install a specific version of SonarLint CLI from the local maven repository.
 * The location of the local maven repository can be passed with the environmental variable 'MAVEN_LOCAL_REPOSITORY'.
 */
public class SonarlintInstaller {
    private static final String GROUP_ID = "org.sonarsource.sonarlint";
    private static final String ARTIFACT_ID = "sonarlint-cli";
    private static final Logger LOG = LoggerFactory.getLogger(SonarlintInstaller.class);

    public Path install(Path installPath, String version) {
        if (!isInstalled(installPath, version)) {
            Path zipFile = locateZipInLocalMaven(version);
            installZip(zipFile, installPath);
        }

        return locateScript(version, installPath);
    }

    private static Path locateScript(String version, Path installPath) {
        String directoryName = "sonarlint-cli-" + version;
        String fileName = SystemUtils.IS_OS_WINDOWS ? "sonarlint.bat" : "sonarlint";

        Path script = installPath.resolve(directoryName).resolve("bin").resolve(fileName);

        if (!Files.exists(script)) {
            throw new IllegalStateException("File does not exist: " + script);
        }
        return script;
    }

    private boolean isInstalled(Path installPath, String version) {
        String directoryName = "sonarlint-cli-" + version;

        Path sonarlint = installPath.resolve(directoryName);

        if (Files.isDirectory(sonarlint)) {
            LOG.debug("SonarLint CLI {} already exists in {}", version, installPath);
            return true;
        }
        return false;
    }

    private void installZip(Path zipFilePath, Path toDir) {
        try {
            ZipFile zipFile = new ZipFile(zipFilePath.toFile());
            zipFile.extractAll(toDir.toString());
        } catch (Exception e) {
            throw new IllegalStateException("Fail to unzip sonarlint cli to" + toDir, e);
        }
    }

    private Path locateZipInLocalMaven(String version) {
        String fileName = "sonarlint-cli-" + version + ".zip";

        LOG.info("Searching for SonarLint CLI {} in maven repositories", version);

        Path mvnRepo = getMavenLocalRepository();
        Path file = getMavenFilePath(mvnRepo, GROUP_ID, ARTIFACT_ID, version, fileName);

        if (!Files.exists(file)) {
            throw new IllegalArgumentException("Couldn't find in local repo: sonarlint cli " + file.toString());
        }
        return file;
    }

    private static Path getMavenFilePath(Path mvnRepo, String groupId, String artifactId, String version,
            String fileName) {
        Path p = mvnRepo;
        String[] split = groupId.split("\\.");

        for (String s : split) {
            p = p.resolve(s);
        }

        p = p.resolve(artifactId);
        p = p.resolve(version);
        return p.resolve(fileName);
    }

    private Path getMavenLocalRepository() {
        if (System.getenv("MAVEN_LOCAL_REPOSITORY") != null) {
            Path repo = Paths.get(System.getenv("MAVEN_LOCAL_REPOSITORY"));
            if (!Files.isDirectory(repo)) {
                throw new IllegalArgumentException(
                        "Maven local repository is not valid: " + System.getenv("MAVEN_LOCAL_REPOSITORY"));
            }
            return repo;
        }

        String home = System.getProperty("user.home");
        Path repo = Paths.get(home).resolve(".m2").resolve("repository");

        if (!Files.isDirectory(repo)) {
            throw new IllegalArgumentException(
                    "Couldn't find maven repository. Please define MAVEN_LOCAL_REPOSITORY in the environment.");
        }

        LOG.info("Using maven repository: {}", repo);
        return repo;
    }
}