com.amashchenko.maven.plugin.gitflow.prompter.ConsolePrompter Maven / Gradle / Ivy

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The Git-Flow Maven Plugin supports various Git workflows, including Vincent Driessen's successful Git branching model and GitHub Flow. This plugin runs Git and Maven commands from the command line. Supports Eclipse Plugins build with Tycho.

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/*
 * Copyright 2014-2023 Aleksandr Mashchenko.
 *
 * 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 com.amashchenko.maven.plugin.gitflow.prompter;

import java.util.ArrayList;
import java.util.List;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.plugin.MojoFailureException;
import org.codehaus.plexus.components.interactivity.Prompter;
import org.codehaus.plexus.components.interactivity.PrompterException;
import org.codehaus.plexus.util.StringUtils;
import org.codehaus.plexus.util.cli.CommandLineException;

/**
 * Default prompter which uses console for input.
 *
 */
@Named
@Singleton
public class ConsolePrompter implements GitFlowPrompter {
    private static final String LS = System.getProperty("line.separator");

    private final Prompter prompter;

    @Inject
    public ConsolePrompter(Prompter prompter) {
        this.prompter = prompter;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String prompt(String[] choices, final String defaultChoice, String preMessage, String postMessage) throws MojoFailureException {
        List numberedList = new ArrayList<>();
        String defChoice = null;
        StringBuilder str = new StringBuilder(preMessage).append(LS);
        for (int i = 0; i < choices.length; i++) {
            str.append(i + 1).append(". ").append(choices[i]).append(LS);
            numberedList.add(String.valueOf(i + 1));
            if (choices[i].equals(defaultChoice)) {
                defChoice = String.valueOf(i + 1);
            }
        }
        str.append(postMessage);

        String response = null;
        try {
            while (StringUtils.isBlank(response)) {
                if (defaultChoice == null || defChoice == null) {
                    response = prompter.prompt(str.toString(), numberedList);
                } else {
                    response = prompter.prompt(str.toString(), numberedList, defChoice);
                }
            }
        } catch (PrompterException e) {
            throw new MojoFailureException("prompter error", e);
        }

        String result = null;
        if (response != null) {
            int num = Integer.parseInt(response);
            result = choices[num - 1];
        }

        return result;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String prompt(String message, PromptValidation validation) throws MojoFailureException, CommandLineException {
        String response = null;
        try {
            while (response == null) {
                response = prompter.prompt(message);

                if (!validation.valid(response)) {
                    response = null;
                }
            }
        } catch (PrompterException e) {
            throw new MojoFailureException("prompter error", e);
        }
        return response;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String prompt(String message, List choices) throws MojoFailureException {
        String response = null;
        try {
            response = prompter.prompt(message, choices);
        } catch (PrompterException e) {
            throw new MojoFailureException("prompter error", e);
        }
        return response;
    }
}