io.github.pepperkit.githooks.InitHooksMojo Maven / Gradle / Ivy

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Maven plugin, which enables control on git hooks via easy configuration.

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/*
 * Copyright (C) 2021 PepperKit
 *
 * This software may be modified and distributed under the terms
 * of the MIT license. See the LICENSE file for details.
 */
package io.github.pepperkit.githooks;

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

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.LifecyclePhase;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;

/**
 * The main Mojo, installs configured git hooks.
 */
@Mojo(name = "initHooks", defaultPhase = LifecyclePhase.INITIALIZE)
public class InitHooksMojo extends AbstractMojo {

    /**
     * Hooks configured by the user.
     */
    @Parameter(defaultValue = "null")
    public Map hooks;

    GitHooksManager gitHooksManager = new GitHooksManager(this);

    /**
     * Helper method, is used to set hooks to null if nothing is provided by the user.
     * @param hooks hooks in string format, "null" value is only one expected
     */
    public void setHooks(String hooks) {
        if (hooks.equals("null")) {
            this.hooks = null;
        }
    }

    @Override
    public void execute() throws MojoExecutionException {
        List existingHookFiles = gitHooksManager.getExistingHookFiles();
        if (hooks == null) {
            existingHookFiles.forEach(File::delete);
            return;
        }

        gitHooksManager.checkProvidedHookNamesCorrectness(hooks);
        gitHooksManager.checkGitHooksDirAndCreateIfMissing();

        String hookToBeCreated = null;
        try {
            for (Map.Entry hook : hooks.entrySet()) {
                hookToBeCreated = hook.getKey();
                gitHooksManager.createHook(hookToBeCreated, hook.getValue());
            }

        } catch (IOException e) {
            throw new MojoExecutionException("Cannot write hook `" + hookToBeCreated + "`", e);
        }
    }
}