com.sap.prd.mobile.ios.mios.UpdateVersionInPomMojo.java Source code

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Here is the source code for com.sap.prd.mobile.ios.mios.UpdateVersionInPomMojo.java

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/*
 * #%L
 * xcode-maven-plugin
 * %%
 * Copyright (C) 2012 SAP AG
 * %%
 * 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.
 * #L%
 */
package com.sap.prd.mobile.ios.mios;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import java.nio.charset.Charset;

import org.apache.commons.io.IOUtils;
import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
import org.apache.maven.model.io.xpp3.MavenXpp3Writer;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;

/**
 * 
 * @goal update-version-in-pom
 * 
 */
public class UpdateVersionInPomMojo extends BuildContextAwareMojo {

    /**
     * @parameter expression="${appendSnapshot}" default-value="true"
     * @since 1.6.1
     */
    private boolean appendSnapshot;

    @Override
    public void execute() throws MojoExecutionException, MojoFailureException {
        try {

            String version = getXCodeVersion();

            if (version == null || version.isEmpty())
                throw new MojoExecutionException("No xcode version found. Could not update version in pom.");

            if (appendSnapshot)
                version += "-SNAPSHOT";

            final File pom = new File("pom.xml").getAbsoluteFile();

            if (!pom.canWrite())
                throw new MojoExecutionException(
                        "Pom file '" + pom + "' is readonly. Cannot update version in this file.");

            Model model = readPom(pom);

            String oldVersion = model.getVersion();

            if (oldVersion != null && oldVersion.equals(version)) {
                getLog().info("! XCode version matches pom version. No update needed.");
                return;
            }
            model.setVersion(version);

            writePom(pom, model);

            getLog().info(
                    "! Version in pom file (" + pom + ") updated from '" + oldVersion + "' to " + version + ".");
        } catch (IOException e) {
            throw new MojoExecutionException(e.getMessage(), e);
        } catch (XmlPullParserException e) {
            throw new MojoExecutionException(e.getMessage(), e);
        } catch (XCodeException e) {
            throw new MojoExecutionException(e.getMessage(), e);
        }
    }

    Model readPom(File pom) throws IOException, XmlPullParserException {

        Reader r = null;

        try {
            r = new InputStreamReader(new FileInputStream(pom), Charset.defaultCharset().name());

            Model model = new MavenXpp3Reader().read(r);
            r.close();
            return model;
        } finally {
            IOUtils.closeQuietly(r);
        }
    }

    private void writePom(File pom, Model model) throws IOException {
        Writer w = null;

        try {

            w = new OutputStreamWriter(new FileOutputStream(pom), Charset.defaultCharset().name());
            new MavenXpp3Writer().write(w, model);

        } finally {
            IOUtils.closeQuietly(w);
        }
    }

    private String getXCodeVersion() throws XCodeException {
        String version = null;

        for (String configuration : getConfigurations()) {
            for (String sdk : getSDKs()) {

                String _version = null;

                String infoPListFileName = EffectiveBuildSettings.getBuildSetting(
                        getXCodeContext(XCodeContext.SourceCodeLocation.WORKING_COPY, configuration, sdk),
                        EffectiveBuildSettings.INFOPLIST_FILE);
                if (infoPListFileName == null || infoPListFileName.isEmpty())
                    throw new XCodeException("Cannot retrieve info plist file from Build settings.");

                final File sourceDir = getXCodeSourceDirectory();
                getLog().info("Xcode source directory is: '" + sourceDir + "'.");

                File infoPList = new File(sourceDir, infoPListFileName);
                getLog().info("InfoPList file is: '" + infoPList + "'.");

                if (!infoPList.canRead())
                    throw new XCodeException("InfoPList file '" + infoPList + "' is not available.");

                _version = getVersionFromInfoPList(infoPList);

                if (_version == null)
                    throw new XCodeException("Version not found inside plist file '" + infoPList + "'.");

                if (version != null && !_version.equals(version))
                    throw new XCodeException("Version differs between different combinations of configuration/sdk ("
                            + _version + "/" + version + ")");

                version = _version;
            }
        }

        return version;
    }

    private String getVersionFromInfoPList(File infoPList) throws XCodeException {
        if (!infoPList.exists())
            throw new XCodeException("InfoPlist file '" + infoPList + "' does not exist.");

        try {
            return new PListAccessor(infoPList).getStringValue(PListAccessor.KEY_BUNDLE_VERSION);
        } catch (IOException ex) {
            throw new XCodeException("Cannot retrieve version from plist file '" + infoPList + "'.");
        }
    }
}