com.amashchenko.maven.plugin.gitflow.GitFlowFeatureStartMojo 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 2014-2018 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;

import java.util.HashMap;
import java.util.Map;

import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.shared.release.versions.VersionParseException;
import org.codehaus.plexus.components.interactivity.PrompterException;
import org.codehaus.plexus.util.StringUtils;
import org.codehaus.plexus.util.cli.CommandLineException;

/**
 * The git flow feature start mojo.
 * 
 */
@Mojo(name = "feature-start", aggregator = true)
public class GitFlowFeatureStartMojo extends AbstractGitFlowMojo {

    /**
     * Whether to skip changing project version. Default is false
     * (the feature name will be appended to project version).
     * 
     * @since 1.0.5
     */
    @Parameter(property = "skipFeatureVersion", defaultValue = "false")
    private boolean skipFeatureVersion = false;

    /**
     * Regex pattern to enforce naming of the feature branches. Doesn't have
     * effect if not set or blank.
     * 
     * @since 1.5.0
     */
    @Parameter
    private String featureNamePattern;

    /**
     * Whether to push to the remote.
     * 
     * @since 1.6.0
     */
    @Parameter(property = "pushRemote", defaultValue = "false")
    private boolean pushRemote;

    /**
     * Feature name to use in non-interactive mode.
     * 
     * @since 1.9.0
     */
    @Parameter(property = "featureName")
    private String featureName;

    /** {@inheritDoc} */
    @Override
    public void execute() throws MojoExecutionException, MojoFailureException {
        validateConfiguration();

        try {
            // set git flow configuration
            initGitFlowConfig();

            // check uncommitted changes
            checkUncommittedChanges();

            // fetch and check remote
            if (fetchRemote) {
                gitFetchRemoteAndCompare(gitFlowConfig.getDevelopmentBranch());
            }

            String featureBranchName = null;
            if (settings.isInteractiveMode()) {
                try {
                    while (StringUtils.isBlank(featureBranchName)) {
                        featureBranchName = prompter
                                .prompt("What is a name of feature branch? "
                                        + gitFlowConfig
                                                .getFeatureBranchPrefix());

                        if (!validateBranchName(featureBranchName,
                                featureNamePattern)) {
                            featureBranchName = null;
                        }
                    }
                } catch (PrompterException e) {
                    throw new MojoFailureException("feature-start", e);
                }
            } else if (validateBranchName(featureName, featureNamePattern)) {
                featureBranchName = featureName;
            }

            if (StringUtils.isBlank(featureBranchName)) {
                throw new MojoFailureException("Feature name is blank.");
            }

            featureBranchName = StringUtils.deleteWhitespace(featureBranchName);

            // git for-each-ref refs/heads/feature/...
            final boolean featureBranchExists = gitCheckBranchExists(
                    gitFlowConfig.getFeatureBranchPrefix() + featureBranchName);

            if (featureBranchExists) {
                throw new MojoFailureException(
                        "Feature branch with that name already exists. Cannot start feature.");
            }

            // git checkout -b ... develop
            gitCreateAndCheckout(
                    gitFlowConfig.getFeatureBranchPrefix() + featureBranchName,
                    gitFlowConfig.getDevelopmentBranch());

            if (!skipFeatureVersion && !tychoBuild) {
                // get current project version from pom
                final String currentVersion = getCurrentProjectVersion();

                final String version = new GitFlowVersionInfo(currentVersion)
                        .featureVersion(featureBranchName);

                if (StringUtils.isNotBlank(version)) {
                    // mvn versions:set -DnewVersion=...
                    // -DgenerateBackupPoms=false
                    mvnSetVersions(version);

                    Map properties = new HashMap();
                    properties.put("version", version);
                    properties.put("featureName", featureBranchName);

                    // git commit -a -m updating versions for feature branch
                    gitCommit(commitMessages.getFeatureStartMessage(),
                            properties);
                }
            }

            if (installProject) {
                // mvn clean install
                mvnCleanInstall();
            }

            if (pushRemote) {
                gitPush(gitFlowConfig.getFeatureBranchPrefix()
                        + featureBranchName, false);
            }
        } catch (CommandLineException e) {
            throw new MojoFailureException("feature-start", e);
        } catch (VersionParseException e) {
            throw new MojoFailureException("feature-start", e);
        }
    }

    private boolean validateBranchName(String name, String pattern)
            throws MojoFailureException, CommandLineException {
        boolean valid = true;
        if (StringUtils.isNotBlank(name) && validBranchName(name)) {
            if (StringUtils.isNotBlank(pattern) && !name.matches(pattern)) {
                getLog().warn("The name of the branch doesn't match '" + pattern
                        + "'.");
                valid = false;
            }
        } else {
            getLog().warn("The name of the branch is not valid.");
            valid = false;
        }
        return valid;
    }
}