Add GitService with clone, list, branch, commit, push, pull

Implements all core Git operations using JGit with separate worktree and git-dir paths. Includes comprehensive unit tests. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-02-26 08:41:25 +01:00
parent a7d03b3410
commit 239b5367a3
2 changed files with 408 additions and 0 deletions
@@ -0,0 +1,189 @@
+package be.seeseepuff.webgit.service;
+
+import be.seeseepuff.webgit.config.WebgitProperties;
+import lombok.RequiredArgsConstructor;
+import org.eclipse.jgit.api.Git;
+import org.eclipse.jgit.api.errors.GitAPIException;
+import org.eclipse.jgit.lib.Ref;
+import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.lib.StoredConfig;
+import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
+import org.springframework.stereotype.Service;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+import java.util.stream.Stream;
+
+@Service
+@RequiredArgsConstructor
+public class GitService
+{
+	private final WebgitProperties properties;
+
+	public void cloneRepository(String url, String name) throws GitAPIException, IOException
+	{
+		Path worktree = properties.getWorktreePath().resolve(name);
+		Path gitDir = properties.getGitDirPath().resolve(name);
+
+		Files.createDirectories(worktree);
+		Files.createDirectories(gitDir);
+
+		try (Git git = Git.cloneRepository()
+			.setURI(url)
+			.setDirectory(worktree.toFile())
+			.setGitDir(gitDir.toFile())
+			.call())
+		{
+			// clone complete
+		}
+	}
+
+	public List<String> listRepositories() throws IOException
+	{
+		Path gitDirBase = properties.getGitDirPath();
+		if (!Files.exists(gitDirBase))
+			return List.of();
+
+		try (Stream<Path> dirs = Files.list(gitDirBase))
+		{
+			return dirs
+				.filter(Files::isDirectory)
+				.map(p -> p.getFileName().toString())
+				.sorted()
+				.toList();
+		}
+	}
+
+	public List<String> listBranches(String name) throws IOException, GitAPIException
+	{
+		try (Git git = openRepository(name))
+		{
+			return git.branchList()
+				.call()
+				.stream()
+				.map(Ref::getName)
+				.map(ref -> ref.startsWith("refs/heads/") ? ref.substring("refs/heads/".length()) : ref)
+				.toList();
+		}
+	}
+
+	public String getCurrentBranch(String name) throws IOException
+	{
+		try (Git git = openRepository(name))
+		{
+			return git.getRepository().getBranch();
+		}
+	}
+
+	public void checkoutBranch(String name, String branch) throws IOException, GitAPIException
+	{
+		try (Git git = openRepository(name))
+		{
+			git.checkout()
+				.setName(branch)
+				.call();
+		}
+	}
+
+	public void createAndCheckoutBranch(String name, String branch) throws IOException, GitAPIException
+	{
+		try (Git git = openRepository(name))
+		{
+			git.checkout()
+				.setCreateBranch(true)
+				.setName(branch)
+				.call();
+		}
+	}
+
+	public List<String> getModifiedFiles(String name) throws IOException, GitAPIException
+	{
+		try (Git git = openRepository(name))
+		{
+			var status = git.status().call();
+			return Stream.of(
+					status.getModified().stream(),
+					status.getUntracked().stream(),
+					status.getMissing().stream()
+				)
+				.flatMap(s -> s)
+				.sorted()
+				.toList();
+		}
+	}
+
+	public List<String> getStagedFiles(String name) throws IOException, GitAPIException
+	{
+		try (Git git = openRepository(name))
+		{
+			var status = git.status().call();
+			return Stream.of(
+					status.getAdded().stream(),
+					status.getChanged().stream(),
+					status.getRemoved().stream()
+				)
+				.flatMap(s -> s)
+				.sorted()
+				.toList();
+		}
+	}
+
+	public void stageFiles(String name, List<String> files) throws IOException, GitAPIException
+	{
+		try (Git git = openRepository(name))
+		{
+			for (String file : files)
+			{
+				if (Files.exists(properties.getWorktreePath().resolve(name).resolve(file)))
+				{
+					git.add().addFilepattern(file).call();
+				}
+				else
+				{
+					git.rm().addFilepattern(file).call();
+				}
+			}
+		}
+	}
+
+	public void commit(String name, String message) throws IOException, GitAPIException
+	{
+		try (Git git = openRepository(name))
+		{
+			git.commit()
+				.setMessage(message)
+				.call();
+		}
+	}
+
+	public void push(String name) throws IOException, GitAPIException
+	{
+		try (Git git = openRepository(name))
+		{
+			git.push().call();
+		}
+	}
+
+	public void pull(String name) throws IOException, GitAPIException
+	{
+		try (Git git = openRepository(name))
+		{
+			git.pull().call();
+		}
+	}
+
+	private Git openRepository(String name) throws IOException
+	{
+		Path gitDir = properties.getGitDirPath().resolve(name);
+		Path worktree = properties.getWorktreePath().resolve(name);
+
+		Repository repo = new FileRepositoryBuilder()
+			.setGitDir(gitDir.toFile())
+			.setWorkTree(worktree.toFile())
+			.build();
+
+		return new Git(repo);
+	}
+}