Difference source code programmably from svn

	import org.tmatesoft.svn.core.SVNException;
	import org.tmatesoft.svn.core.SVNNodeKind;
	import org.tmatesoft.svn.core.SVNProperties;
	import org.tmatesoft.svn.core.SVNURL;
	import org.tmatesoft.svn.core.auth.ISVNAuthenticationManager;
	import org.tmatesoft.svn.core.internal.io.dav.DAVRepositoryFactory;
	import org.tmatesoft.svn.core.internal.io.fs.FSRepositoryFactory;
	import org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryFactoryImpl;
	import org.tmatesoft.svn.core.io.SVNRepository;
	import org.tmatesoft.svn.core.io.SVNRepositoryFactory;
	import org.tmatesoft.svn.core.wc.*;
	import org.tmatesoft.svn.core.wc2.SvnOperationFactory;
	import java.io.ByteArrayOutputStream;
	import java.io.File;
	/**
	* Diff & export
	* Created by nanashi07 on 2016/6/29.
	*/
	public class DiffWithSvnKit {
	public static void main(String[] args) throws SVNException {
	final String fromUrl = "https://svn.your_server.com/path_to_compare_from";
	final long fromRevision = 1000;
	final String targetUrl = "https://svn.your_server.com/path_to_compare_to";
	final long targetRevision = 2000;
	final String outputFolder = "/folder_to_export";
	final String account = "account";
	final String password = "password";
	DAVRepositoryFactory.setup();
	SVNRepositoryFactoryImpl.setup();
	FSRepositoryFactory.setup();
	SVNURL fromSvnUrl = SVNURL.parseURIEncoded(fromUrl);
	SVNRevision fromSvnRevision = SVNRevision.create(fromRevision);
	SVNURL targetSvnUrl = SVNURL.parseURIEncoded(targetUrl);
	SVNRevision targetSvnRevision = SVNRevision.create(targetRevision);
	final File baseFolder = new File(outputFolder);
	final SvnOperationFactory svnOperationFactory = new SvnOperationFactory();
	final SVNRepository repository = SVNRepositoryFactory.create(targetSvnUrl);
	final StringBuilder builder = new StringBuilder();
	ISVNAuthenticationManager authManager = SVNWCUtil.createDefaultAuthenticationManager(account, password.toCharArray());
	svnOperationFactory.setAuthenticationManager(authManager);
	repository.setAuthenticationManager(authManager);
	SVNDiffClient diffClient = new SVNDiffClient(authManager, null);
	try {
	diffClient.doDiffStatus(fromSvnUrl, fromSvnRevision, targetSvnUrl, targetSvnRevision, org.tmatesoft.svn.core.SVNDepth.UNKNOWN, true, new ISVNDiffStatusHandler() {
	@Override
	public void handleDiffStatus(SVNDiffStatus diffStatus) throws SVNException {
	builder.append(String.format("%s, %s%n", diffStatus.getModificationType(), diffStatus.getPath()));
	if (diffStatus.getKind() == SVNNodeKind.FILE) {
	SVNProperties p = new SVNProperties();
	ByteArrayOutputStream output = new ByteArrayOutputStream();
	repository.getFile(diffStatus.getPath(), targetRevision, p, output);
	byte[] data = output.toByteArray();
	File copy = new File(baseFolder, diffStatus.getPath());
	if (!copy.getParentFile().exists()) copy.getParentFile().mkdirs();
	Files.write(copy, data);
	}
	}
	});
	Files.write(new File(baseFolder, "diff.txt"), builder);
	} catch (Throwable ex) {
	ex.printStackTrace();
	}
	}
	}

view raw DiffWithSvnKit.java hosted with ❤ by GitHub

Invoke Gson#toJson() on anonymous class

Create a anonymous object and try to serialize instance via gson. The code is below

	public class SerializeJson {
	static class ResultMessage {
	int code;
	String content;
	public ResultMessage() {
	}
	public ResultMessage(int code, String content) {
	this.code = code;
	this.content = content;
	}
	}
	public static void main(String[] args) {
	ResultMessage m1 = new ResultMessage(111, "hello");
	ResultMessage m2 = new ResultMessage() {{
	code = 2323;
	content = "hello";
	}};
	System.out.printf("m1.code : %s%n", m1.code);
	System.out.printf("m1.content : %s%n", m1.content);
	System.out.printf("m2.code : %s%n", m2.code);
	System.out.printf("m2.content : %s%n", m2.content);
	System.out.println(m1.getClass());
	System.out.println(m2.getClass());
	System.out.println("m1: " + new Gson().toJson(m1));
	System.out.println("m2: " + new Gson().toJson(m2));
	}
	}

view raw SerializeJson.java hosted with ❤ by GitHub

Result of execution. null result when serialize a anonymous instance

	m1.code : 111
	m1.content : hello
	m2.code : 2323
	m2.content : hello
	class com.prhythm.test.generic.http.SerializeJson$ResultMessage
	class com.prhythm.test.generic.http.SerializeJson$1
	m1: {"code":111,"content":"hello"}
	m2: null

view raw output hosted with ❤ by GitHub

Commit file via SVNkit

SVNKit version：

	<dependency>
	<groupId>org.tmatesoft.svnkit</groupId>
	<artifactId>svnkit</artifactId>
	<version>1.8.12</version>
	</dependency>

view raw pom.xml hosted with ❤ by GitHub

SvnCommitter.java

	package com.prhythm.batch.source.control;
	import org.tmatesoft.svn.core.*;
	import org.tmatesoft.svn.core.auth.ISVNAuthenticationManager;
	import org.tmatesoft.svn.core.internal.io.dav.DAVRepositoryFactory;
	import org.tmatesoft.svn.core.internal.io.fs.FSRepositoryFactory;
	import org.tmatesoft.svn.core.internal.io.svn.SVNRepositoryFactoryImpl;
	import org.tmatesoft.svn.core.io.ISVNEditor;
	import org.tmatesoft.svn.core.io.SVNRepository;
	import org.tmatesoft.svn.core.io.SVNRepositoryFactory;
	import org.tmatesoft.svn.core.io.diff.SVNDeltaGenerator;
	import org.tmatesoft.svn.core.wc.SVNWCUtil;
	import java.io.*;
	import java.util.Arrays;
	import java.util.HashMap;
	import java.util.Map;
	/**
	* Created by nanashi07 on 2016/6/22.
	*/
	@SuppressWarnings("Duplicates")
	public class SvnCommitter implements ICommitable {
	public static void main(String[] args) throws Throwable {
	String url1 = "https://svn.your_server.com";
	String userName = "account";
	String userPassword = "password";
	DAVRepositoryFactory.setup();
	SVNRepositoryFactoryImpl.setup();
	FSRepositoryFactory.setup();
	new SvnCommitter().commit(
	url1,
	userName,
	userPassword,
	"Commit updates",
	"trunk/other",
	new File("xom/src")
	);
	}
	/**
	* 最新版本
	*/
	private int revision = -1;
	@Override
	public void commit(String repositoryUrl, String account, String password, String commitMessage, String pathToCommit, File... fileOrDirectory) throws Throwable {
	// 解析網址
	SVNURL url = SVNURL.parseURIEncoded(repositoryUrl);
	// 取得資源庫
	SVNRepository repository = SVNRepositoryFactory.create(url);
	// 身份驗證
	ISVNAuthenticationManager authManager = SVNWCUtil.createDefaultAuthenticationManager(account, password.toCharArray());
	repository.setAuthenticationManager(authManager);
	// 檢查路徑是否存在
	if (pathToCommit == null) pathToCommit = "";
	SVNNodeKind nodeKind = repository.checkPath(pathToCommit, revision);
	if (nodeKind == SVNNodeKind.NONE) {
	SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.UNKNOWN, "No entry at URL ''{0}''", url);
	throw new SVNException(err);
	} else if (nodeKind == SVNNodeKind.FILE) {
	SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.UNKNOWN, "Entry at URL ''{0}'' is a file while directory was expected", url);
	throw new SVNException(err);
	}
	Map<String, SVNNodeKind> kinds = new HashMap<String, SVNNodeKind>();
	for (File file : fileOrDirectory) {
	kinds.putAll(collect(repository, pathToCommit, file));
	}
	ISVNEditor editor = repository.getCommitEditor(commitMessage, null);
	try {
	editor.openRoot(revision);
	SVNDeltaGenerator svnDeltaGenerator = new SVNDeltaGenerator();
	for (String segment : (pathToCommit.charAt(0) == '/' ? pathToCommit.substring(1) : pathToCommit).split("[/]")) {
	System.out.printf("開啟資料夾 %s%n", segment);
	editor.openDir(segment, revision);
	}
	boolean result = false;
	for (File file : fileOrDirectory) {
	result = sendDelta(kinds, editor, svnDeltaGenerator, pathToCommit, file);
	}
	for (String segment : (pathToCommit.charAt(0) == '/' ? pathToCommit.substring(1) : pathToCommit).split("[/]")) {
	System.out.printf("關閉資料夾 %s%n", segment);
	editor.closeDir();
	}
	if (!result) {
	editor.abortEdit();
	System.out.println("無變更");
	} else {
	SVNCommitInfo svnCommitInfo = editor.closeEdit();
	System.out.println(svnCommitInfo);
	}
	} catch (Throwable e) {
	editor.abortEdit();
	e.printStackTrace();
	}
	}
	/**
	* 收集版本資訊
	*
	* @param repository 版本庫
	* @param path 路徑
	* @param fileOrDir 檔案
	* @return
	* @throws SVNException
	*/
	private Map<String, SVNNodeKind> collect(final SVNRepository repository, String path, File fileOrDir) throws SVNException, FileNotFoundException {
	Map<String, SVNNodeKind> values = new HashMap<String, SVNNodeKind>();
	final String targetPath = path.endsWith("/") ? path + fileOrDir.getName() : path + "/" + fileOrDir.getName();
	final SVNNodeKind kind = repository.checkPath(targetPath, revision);
	System.out.println(String.format("%s: %s", targetPath, kind));
	// 取得相關資料
	boolean ignore = false;
	if (kind == SVNNodeKind.FILE) {
	SVNProperties p = new SVNProperties();
	ByteArrayOutputStream output = new ByteArrayOutputStream();
	repository.getFile(targetPath, revision, p, output);
	byte[] data = output.toByteArray();
	// 檔案未變更
	ignore = Arrays.equals(data, toByteArray(new FileInputStream(fileOrDir)));
	}
	// 比對版本，檔案相同時不處理
	if (!ignore) values.put(targetPath, kind);
	if (fileOrDir.isDirectory()) {
	File[] files = fileOrDir.listFiles();
	if (files != null) {
	for (File file : files) {
	values.putAll(collect(repository, targetPath, file));
	}
	}
	}
	return values;
	}
	/**
	* 處理提交的內容。
	*
	* @param kindMap 版本資訊
	* @param editor
	* @param deltaGenerator
	* @param path 處理路徑
	* @param fileOrDir 檔案
	* @return
	* @throws SVNException
	* @throws FileNotFoundException
	*/
	private boolean sendDelta(Map<String, SVNNodeKind> kindMap, ISVNEditor editor, SVNDeltaGenerator deltaGenerator, String path, File fileOrDir) throws SVNException, FileNotFoundException {
	boolean result = false;
	String targetPath = path.endsWith("/") ? path + fileOrDir.getName() : path + "/" + fileOrDir.getName();
	SVNNodeKind info = kindMap.get(targetPath);
	if (info == SVNNodeKind.NONE) {
	// 新增
	if (fileOrDir.isDirectory()) {
	System.out.printf("加入資料夾 %s%n", fileOrDir.getName());
	editor.addDir(fileOrDir.getName(), null, revision);
	File[] subFiles = fileOrDir.listFiles();
	if (subFiles != null) {
	for (File subFile : subFiles) {
	result = result || sendDelta(kindMap, editor, deltaGenerator, targetPath, subFile);
	}
	}
	editor.closeDir();
	result = true;
	} else if (fileOrDir.isFile()) {
	System.out.printf("加入檔案 %s%n", fileOrDir.getName());
	editor.addFile(fileOrDir.getName(), null, revision);
	editor.applyTextDelta(fileOrDir.getName(), null);
	String checksum = deltaGenerator.sendDelta(fileOrDir.getName(), new FileInputStream(fileOrDir), editor, true);
	editor.closeFile(fileOrDir.getName(), checksum);
	result = true;
	}
	} else if (info == SVNNodeKind.DIR || info == SVNNodeKind.FILE) {
	// 修改
	if (fileOrDir.isDirectory()) {
	if (info != SVNNodeKind.DIR)
	throw new RuntimeException(String.format("無法提交資料夾 %s 至檔案格式", fileOrDir));
	System.out.printf("開啟資料夾 %s%n", fileOrDir);
	editor.openDir(fileOrDir.getName(), revision);
	File[] subFiles = fileOrDir.listFiles();
	if (subFiles != null) {
	for (File subFile : subFiles) {
	result = result || sendDelta(kindMap, editor, deltaGenerator, targetPath, subFile);
	}
	}
	editor.closeDir();
	} else if (fileOrDir.isFile()) {
	if (info != SVNNodeKind.FILE)
	throw new RuntimeException(String.format("無法提交檔案 %s 至資料夾格式", fileOrDir));
	System.out.printf("變更檔案 %s%n", fileOrDir.getName());
	editor.openFile(fileOrDir.getName(), revision);
	editor.applyTextDelta(fileOrDir.getName(), null);
	String checksum = deltaGenerator.sendDelta(fileOrDir.getName(), new FileInputStream(fileOrDir), editor, true);
	editor.closeFile(fileOrDir.getName(), checksum);
	result = true;
	}
	}
	return result;
	}
	private byte[] toByteArray(InputStream input) {
	if (input == null) throw new IllegalArgumentException("Input can't be null");
	ByteArrayOutputStream output = null;
	try {
	output = new ByteArrayOutputStream();
	byte[] buffer = new byte[128];
	int len;
	while ((len = input.read(buffer)) > 0) {
	output.write(buffer, 0, len);
	}
	return output.toByteArray();
	} catch (Throwable e) {
	throw new RuntimeException(e.getMessage(), e);
	} finally {
	if (output != null) try {
	output.close();
	} catch (IOException e) {
	e.printStackTrace();
	}
	try {
	input.close();
	} catch (IOException e) {
	e.printStackTrace();
	}
	}
	}
	}

view raw SvnCommitter.java hosted with ❤ by GitHub

List changed files between commits

List all changed files between commits of git.

git diff --name-only SHA1 SHA2

or

git diff --name-only HEAD~10 HEAD~5