Refactored the backend yet again

21 files changed, 892 insertions, 692 deletions

diff --git a/packages/server/src/api/git.ts b/packages/server/src/api/git.ts
deleted file mode 100644
index 49ef906..0000000
--- a/packages/server/src/api/git.ts
+++ /dev/null
@@ -1,512 +0,0 @@
-import {
-	Branch, Commit,
-	Hunk, Hunks,
-	LatestCommit, LogCommit,
-	Patch, PatchHeaderData,
-	Repository, RequestInfo,
-	ShortBranch, Tag,
-	Tree, TreeEntry
-} from "./git_types";
-import { FastifyReply, FastifyRequest } from "fastify";
-import { Pack, pack } from "tar-stream";
-import { join, parse } from "path";
-import { readFile, readdir } from "fs";
-import { IncomingMessage } from "http";
-import { Route } from "../fastify_types";
-import { URL } from "whatwg-url";
-import { createGzip } from "zlib";
-import nodegit from "nodegit";
-import { pipeline } from "stream";
-import { spawn } from "child_process";
-import { verifyGitRequest } from "./util";
-
-function getFullRepositoryName(repo_name: string) {
-	return repo_name.endsWith(".git") ? repo_name : `${repo_name}.git`;
-}
-
-function getHunkContent(hunk: string[]) {
-	interface Lines {
-		new_lines: number[],
-		deleted_lines: number[]
-	}
-
-	const lines = hunk.reduce((result: Lines, line, index) => {
-		if(line.charAt(0) === "+") {
-			hunk[index] = line.slice(1);
-			result.new_lines.push(index);
-		}
-		else if(line.charAt(0) === "-") {
-			hunk[index] = line.slice(1);
-			result.deleted_lines.push(index);
-		}
-		return result;
-	}, { new_lines: [], deleted_lines: [] });
-
-	return { ...lines, hunk: hunk.join("\n") };
-}
-
-function getPatchHeaderData(patch_headers: string[], all_patches: string[]) {
-	return patch_headers.reduce((patch_header_data, line, index) => {
-		// The start of a patch header
-		if((/^diff --git/u).test(line)) {
-			patch_header_data.indexes.push(all_patches.indexOf(line));
-
-			if(patch_header_data.last !== null) {
-				patch_header_data.lengths.push(patch_headers.slice(patch_header_data.last, index).length);
-			}
-			patch_header_data.last = index;
-		}
-
-		// Include the last patch header when the end is reached
-		if(index === patch_headers.length - 1 && patch_header_data.last !== null) {
-			patch_header_data.lengths.push(patch_headers.slice(patch_header_data.last, index).length);
-		}
-
-		return patch_header_data;
-	}, <PatchHeaderData>{ indexes: [], lengths: [], last: null });
-}
-
-function getHunks(hunks: nodegit.ConvenientHunk[], patch_content: string[]) {
-	return hunks.reduce((hunks_data: Hunks, hunk, hunk_index) => {
-		const hunk_header = hunk.header();
-		const hunk_header_index = patch_content.indexOf(hunk_header.replace(/\n/gu, ""));
-
-		if(hunks_data.prev !== null) {
-			const prev_hunk = hunks[hunk_index - 1];
-			hunks_data.hunks.push({
-				new_start: prev_hunk.newStart(),
-				new_lines_cnt: prev_hunk.newLines(),
-				old_start: prev_hunk.oldStart(),
-				old_lines_cnt: prev_hunk.oldLines(),
-				...getHunkContent(patch_content.slice(hunks_data.prev, hunk_header_index))
-			});
-		}
-
-		hunks_data.prev = hunk_header_index;
-		return hunks_data;
-	}, { prev: null, hunks: [] });
-}
-
-function getPatch(patch: nodegit.ConvenientPatch, too_large: boolean, hunks?: Hunk[]): Patch {
-	return {
-		from: patch.oldFile().path(),
-		to: patch.newFile().path(),
-		additions: patch.lineStats()["total_additions"],
-		deletions: patch.lineStats()["total_deletions"],
-		too_large: too_large,
-		hunks: hunks || null
-	};
-}
-
-interface Request extends FastifyRequest {
-	params: Route["Params"],
-}
-
-function getRequestInfo(req: Request): RequestInfo {
-	const repo = req.params.repo + ".git";
-	const url_path = req.url.replace(req.params.repo, repo);
-
-	const parsed_url = new URL(`${req.protocol}://${req.hostname}${url_path}`);
-	const url_path_parts = parsed_url.pathname.split("/");
-
-	const is_discovery = (/\/info\/refs$/u).test(parsed_url.pathname);
-
-	const service = is_discovery ? parsed_url.searchParams.get("service") : url_path_parts[url_path_parts.length - 1];
-
-	const content_type = `application/x-${service}-${is_discovery ? "advertisement" : "result"}`;
-
-	return {
-		repo,
-		url_path,
-		parsed_url,
-		is_discovery,
-		url_path_parts,
-		service,
-		content_type
-	};
-}
-
-async function getTreeEntryLastCommit(repo: nodegit.Repository, tree_entry: nodegit.TreeEntry) {
-	const walker = nodegit.Revwalk.create(repo);
-	walker.pushHead();
-
-	const raw_commits = await walker.getCommitsUntil(() => true);
-
-	return raw_commits.reduce((acc, commit) => {
-		return acc.then(result => {
-			if(result.id === null) {
-				return commit.getDiff().then(diffs => diffs[0].patches().then(patches => {
-					let matching_path_patch = null;
-					if(tree_entry.isBlob()) {
-						matching_path_patch = patches.find(patch => patch.newFile().path() === tree_entry.path());
-					}
-					else {
-						matching_path_patch = patches.find(patch => parse(patch.newFile().path()).dir.startsWith(tree_entry.path()));
-					}
-
-					if(matching_path_patch) {
-						result.id = commit.sha();
-						result.message = commit.message().replace(/\n/gu, "");
-						result.date = commit.time();
-					}
-					return result;
-				}));
-			}
-
-			return result;
-		});
-	}, Promise.resolve(<LatestCommit>{ id: null, message: null, date: null }));
-}
-
-function readDirectory(directory: string) {
-	return new Promise<string[]>(resolve => {
-		readdir(directory, (err, dir_content) => {
-			if(err) {
-				resolve([]);
-			}
-
-			resolve(dir_content);
-		});
-	});
-}
-
-async function addArchiveEntries(entries: nodegit.TreeEntry[], repo_name: string, archive: Pack) {
-	for(const tree_entry of entries) {
-		if(tree_entry.isBlob()) {
-			const blob = await tree_entry.getBlob();
-			archive.entry({ name: `${repo_name}/${tree_entry.path()}` }, blob.content().toString());
-		}
-		else if(tree_entry.isTree()) {
-			const tree = await tree_entry.getTree();
-			addArchiveEntries(tree.entries(), repo_name, archive);
-		}
-	}
-}
-
-function getTreeEntries(repo: nodegit.Repository, entries: nodegit.TreeEntry[]) {
-	return entries.reduce((acc, entry) => {
-		return acc.then(result => {
-			return getTreeEntryLastCommit(repo, entry).then(last_commit => {
-				result.push({
-					name: parse(entry.path()).base,
-					id: entry.sha(),
-					type: entry.isBlob() ? "blob" : "tree",
-					latest_commit: {
-						id: last_commit.id,
-						message: last_commit.message,
-						date: last_commit.date
-					}
-				});
-				return result;
-			});
-		});
-	}, Promise.resolve(<TreeEntry[]>[]));
-}
-
-export class GitAPI {
-	base_dir: string;
-
-	constructor(base_dir: string) {
-		this.base_dir = base_dir;
-	}
-
-	openRepository(repo_name: string): Promise<nodegit.Repository> {
-		return nodegit.Repository.openBare(`${this.base_dir}/${getFullRepositoryName(repo_name)}`);
-	}
-
-	async getLog(repo_name: string): Promise<LogCommit[]> {
-		const repo = await this.openRepository(repo_name);
-
-		const walker: nodegit.Revwalk = nodegit.Revwalk.create(repo);
-		walker.pushHead();
-
-		const raw_commits = await walker.getCommitsUntil(() => true);
-
-		return Promise.all(raw_commits.map(async commit => <LogCommit>{
-			id: commit.sha(),
-			author: {
-				name: commit.author().name(),
-				email: commit.author().email()
-			},
-			date: commit.time(),
-			message: commit.message(),
-			insertions: <number>(await (await commit.getDiff())[0].getStats()).insertions(),
-			deletions: <number>(await (await commit.getDiff())[0].getStats()).deletions(),
-			files_changed: <number>(await (await commit.getDiff())[0].getStats()).filesChanged()
-		}));
-	}
-
-	async getRepositoryLastCommit(repo_name: string): Promise<number> {
-		const repo = await this.openRepository(repo_name);
-
-		const master_commit = await repo.getMasterCommit();
-
-		return master_commit.time();
-	}
-
-	getRepositoryFile(repo_name: string, file: string): Promise<string | null> {
-		return new Promise(resolve => {
-			const full_repo_name = getFullRepositoryName(repo_name);
-			readFile(`${this.base_dir}/${full_repo_name}/${file}`, (err, content) => {
-				if(err) {
-					resolve(null);
-					return;
-				}
-				resolve(content.toString().replace(/\n/gu, ""));
-			});
-		});
-	}
-
-	async getRepositories(): Promise<Repository[] | null> {
-		const dir_content = await readDirectory(this.base_dir);
-
-		if(dir_content.length === 0) {
-			return null;
-		}
-
-		return dir_content.filter(repo => repo.endsWith(".git")).reduce((acc, repo) => {
-			return acc.then(repos => {
-				return this.getRepositoryFile(repo, "description").then(description => {
-					return this.getRepositoryFile(repo, "owner").then(owner => {
-						return this.getRepositoryLastCommit(repo).then(last_commit_date => {
-							repos.push({
-								name: repo.slice(0, -4),
-								description: description,
-								owner: owner,
-								last_updated: last_commit_date
-							});
-							return repos;
-						});
-					});
-				});
-			});
-		}, Promise.resolve(<Repository[]>[]));
-	}
-
-	async getCommit(repo_name: string, commit_oid: string): Promise<Commit> {
-		const repo = await this.openRepository(repo_name);
-		const commit = await repo.getCommit(commit_oid);
-		const diff = (await commit.getDiff())[0];
-		const all_patches = (await diff.toBuf(1)).toString().split("\n");
-		const patch_header_data = getPatchHeaderData((await diff.toBuf(2)).toString().split("\n"), all_patches);
-
-		const parsed_patches = (await diff.patches()).reduce((acc, patch, patch_index) => {
-			return acc.then(arr => patch.hunks().then(hunks => {
-				const patch_start = patch_header_data.indexes[patch_index] + patch_header_data.lengths[patch_index];
-				const patch_end = (typeof patch_header_data.indexes[patch_index + 1] === "undefined") ? all_patches.length - 1 : patch_header_data.indexes[patch_index + 1];
-				const patch_content = all_patches.slice(patch_start, patch_end);
-				const line_lengths = patch_content.map(line => line.length).reduce((result, length) => result + length);
-
-				if(patch_content.length > 5000 || line_lengths > 5000) {
-					console.log("Too large!");
-
-					arr.push(getPatch(patch, true));
-					return arr;
-				}
-
-				const hunks_data = getHunks(hunks, patch_content);
-
-				const prev_hunk = hunks[hunks.length - 1];
-				hunks_data.hunks.push({
-					new_start: prev_hunk.newStart(),
-					new_lines_cnt: prev_hunk.newLines(),
-					old_start: prev_hunk.oldStart(),
-					old_lines_cnt: prev_hunk.oldLines(),
-					...getHunkContent(patch_content.slice(<number>hunks_data.prev, patch_end))
-				});
-
-				arr.push(getPatch(patch, false, hunks_data.hunks));
-
-				return arr;
-			}));
-		}, Promise.resolve(<Patch[]>[]));
-
-		return {
-			id: commit.sha(),
-			author: {
-				name: commit.author().name(),
-				email: commit.author().email()
-			},
-			message: commit.message(),
-			date: commit.time(),
-			patches: await parsed_patches
-		};
-	}
-
-	connectToGitHTTPBackend(req: Request, reply: FastifyReply): void {
-		const request_info = getRequestInfo(req);
-
-		const valid_request = verifyGitRequest(request_info);
-		if(valid_request.success === false && valid_request.code) {
-			reply.header("Content-Type", request_info.content_type);
-			reply.code(valid_request.code).send(valid_request.message);
-			return;
-		}
-
-		reply.raw.writeHead(200, { "Content-Type": request_info.content_type });
-
-		const spawn_args = [ "--stateless-rpc", join(this.base_dir, request_info.repo) ];
-		if(request_info.is_discovery) {
-			spawn_args.push("--advertise-refs");
-		}
-
-		const git_pack = spawn(<string>request_info.service, spawn_args);
-
-		if(request_info.is_discovery) {
-			const s = "# service=" + request_info.service + "\n";
-			const n = (4 + s.length).toString(16);
-			reply.raw.write(Buffer.from((Array(4 - n.length + 1).join("0") + n + s) + "0000"));
-		}
-		else {
-			const request_body: IncomingMessage = req.raw;
-
-			request_body.on("data", data => git_pack.stdin.write(data));
-			request_body.on("close", () => git_pack.stdin.end());
-		}
-
-		git_pack.on("error", err => console.log(err));
-
-		git_pack.stderr.on("data", (stderr: Buffer) => console.log(stderr.toString()));
-		git_pack.stdout.on("data", data => reply.raw.write(data));
-
-		git_pack.on("close", () => reply.raw.end());
-	}
-
-	async getTree(repo_name: string, tree_path: string | null): Promise<Tree | null> {
-		const repo = await this.openRepository(repo_name);
-		const master_commit = await repo.getMasterCommit();
-
-		const tree = await master_commit.getTree();
-
-		if(tree_path) {
-			const path_entry = await tree.getEntry(tree_path)
-				.catch(() => null);
-
-			if(!path_entry) {
-				return null;
-			}
-
-			if(path_entry.isBlob()) {
-				return { type: "blob", content: (await path_entry.getBlob()).content().toString() };
-			}
-
-			const path_entry_tree = await path_entry.getTree();
-			return { type: "tree", content: await getTreeEntries(repo, path_entry_tree.entries()) };
-		}
-
-		return { type: "tree", content: await getTreeEntries(repo, tree.entries()) };
-	}
-
-	async doesObjectExist(repo_name: string, id: string): Promise<boolean> {
-		const repo = await this.openRepository(repo_name);
-
-		return nodegit.Object.lookup(repo, nodegit.Oid.fromString(id), nodegit.Object.TYPE.ANY)
-			.then(() => true)
-			.catch(() => false);
-	}
-
-	async doesReadmeExist(repo_name: string): Promise<boolean> {
-		const repo = await this.openRepository(repo_name);
-
-		const master_commit = await repo.getMasterCommit();
-		const tree = await master_commit.getTree();
-
-		return tree.getEntry("README.md").catch(() => null)
-			.then(() => true)
-			.catch(() => false);
-	}
-
-	async getBranches(repo_name: string): Promise<ShortBranch[]> {
-		const repo = await this.openRepository(repo_name);
-
-		const references = await repo.getReferences();
-
-		return references.filter(ref => ref.isBranch()).map(ref => {
-			return {
-				id: ref.target().tostrS(),
-				name: ref.shorthand()
-			};
-		});
-	}
-
-	async getBranch(repo_name: string, branch_id: string): Promise<Branch | null> {
-		const repo = await this.openRepository(repo_name);
-
-		const references = await repo.getReferences();
-		const branches = references.filter(ref => ref.isBranch());
-
-		const branch = branches.find(_branch => _branch.target().tostrS() === branch_id);
-		if(!branch) {
-			return null;
-		}
-
-		const latest_commit = await repo.getBranchCommit(branch);
-
-		return {
-			id: branch.target().tostrS(),
-			name: branch.shorthand(),
-			latest_commit: {
-				id: latest_commit.sha(),
-				message: latest_commit.message(),
-				date: latest_commit.time()
-			}
-		};
-	}
-
-	async getTags(repo_name: string): Promise<Tag[]> {
-		const repo = await this.openRepository(repo_name);
-
-		const references = await repo.getReferences();
-
-		return Promise.all(references.filter(ref => ref.isTag()).map(async ref => {
-			const tagger = (await nodegit.Tag.lookup(repo, ref.target())).tagger();
-
-			return {
-				name: ref.shorthand(),
-				author: {
-					name: tagger.name(),
-					email: tagger.email()
-				},
-				date: tagger.when().time()
-			};
-		}));
-	}
-
-	async downloadTagArchive(repo_name: string, tag_name: string, reply: FastifyReply): Promise<void> {
-		const repo = await this.openRepository(repo_name);
-
-		const reference = await repo.getReference(tag_name)
-			.catch(() => {
-				reply.code(404).send("Tag not found!");
-				return null;
-			});
-		if(!reference) {
-			return;
-		}
-
-		const commit = await nodegit.Commit.lookup(repo, (await reference.peel(nodegit.Object.TYPE.COMMIT)).id());
-		const tree = await commit.getTree();
-
-		const archive = pack();
-		const gzip = createGzip();
-
-		reply.raw.writeHead(200, {
-			"Content-Encoding": "gzip",
-			"Content-Type": "application/gzip",
-			"Content-Disposition": `attachment; filename="${repo_name}-${tag_name}.tar.gz"`
-		});
-
-		pipeline(archive, gzip, reply.raw, () => reply.raw.end());
-
-		gzip.on("close", () => reply.raw.end());
-		gzip.on("error", () => reply.raw.end());
-		archive.on("error", () => reply.raw.end());
-
-		addArchiveEntries(tree.entries(), repo_name, archive)
-			.then(() => archive.finalize())
-			.catch(() => {
-				archive.finalize();
-				reply.raw.end();
-			});
-	}
-}
\ No newline at end of file
diff --git a/packages/server/src/api/git_types.d.ts b/packages/server/src/api/git_types.d.ts
deleted file mode 100644
index 8aff698..0000000
--- a/packages/server/src/api/git_types.d.ts
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
-	Types
-*/
-
-// General
-export type Author = {
-	name: string,
-	email: string
-}
-export type LatestCommit = {
-	id: string | null,
-	message: string | null,
-	date: number | null
-}
-
-// Repository
-export type Repository = {
-	name: string,
-	description: string | null,
-	owner: string | null,
-	last_updated: number
-}
-
-// Diff
-export type Hunk = {
-	new_start: number,
-	new_lines_cnt: number,
-	old_start: number,
-	old_lines_cnt: number,
-	new_lines: number[],
-	deleted_lines: number[],
-	hunk: string
-}
-export type Patch = {
-	from: string,
-	to: string,
-	additions: number,
-	deletions: number,
-	too_large: boolean,
-	hunks: Hunk[] | null
-}
-export type Hunks = {
-	prev: null | number,
-	hunks: Hunk[]
-}
-export type PatchHeaderData = {
-	indexes: number[],
-	lengths: number[],
-	last: number | null
-}
-
-// Request
-export type RequestInfo = {
-	repo: string,
-	url_path: string,
-	parsed_url: URL,
-	url_path_parts: string[],
-	is_discovery: boolean,
-	service: string | null,
-	content_type: string
-}
-
-// Tree
-export type TreeEntry = {
-	name: string,
-	id: string,
-	type: "blob" | "tree",
-	latest_commit: LatestCommit
-}
-export type Tree = {
-	type: "blob" | "tree",
-	content: string | TreeEntry[]
-}
-
-// Log
-export type LogCommit = {
-	id: string,
-	author: Author,
-	date: number,
-	message: string,
-	insertions: number,
-	deletions: number,
-	files_changed: number
-}
-export type Commit = {
-	id: string,
-	author: Author,
-	message: string,
-	date: number,
-	patches: Patch[]
-}
-
-// Tag
-export type Tag = {
-	name: string,
-	date: number,
-	author: Author
-}
-
-/*
-	Interfaces
-*/
-
-// Branch
-export interface ShortBranch {
-	id: string,
-	name: string
-}
-export interface Branch extends ShortBranch {
-	latest_commit: LatestCommit
-}
\ No newline at end of file
diff --git a/packages/server/src/api/util.ts b/packages/server/src/api/util.ts
index b05ebb7..e1eaa2c 100644
--- a/packages/server/src/api/util.ts
+++ b/packages/server/src/api/util.ts
@@ -1,5 +1,6 @@
-import { GitAPI } from "./git";
-import { RequestInfo } from "./git_types";
+import { Commit } from "../git/commit";
+import { Repository } from "../git/repository";
+import { RequestInfo } from "../git/http";
 import { readdir } from "fs";
 
 type VerificationResultType = "SUCCESS" | "NOT_FOUND" | "INVALID" | "ACCESS_DENIED";
@@ -51,12 +52,12 @@ export function verifyRepoName(base_dir: string, repo_name: string): Promise<Ver
 	});
 }
 
-export async function verifySHA(git: GitAPI, repo_name: string, sha: string): Promise<VerificationResult> {
+export async function verifySHA(repository: Repository, sha: string): Promise<VerificationResult> {
 	if(!(/^[a-fA-F0-9]+$/u).test(sha)) {
 		return new VerificationResult("INVALID", "sha");
 	}
 
-	const object_exists = await git.doesObjectExist(repo_name, sha);
+	const object_exists = await Commit.lookupExists(repository, sha);
 
 	if(!object_exists) {
 		return new VerificationResult("NOT_FOUND", "object");
diff --git a/packages/server/src/api/v1/index.ts b/packages/server/src/api/v1/index.ts
index 00652a8..a6ab918 100644
--- a/packages/server/src/api/v1/index.ts
+++ b/packages/server/src/api/v1/index.ts
@@ -1,12 +1,10 @@
 import { FastifyInstance, FastifyPluginOptions } from "fastify";
-import { GitAPI } from "../git";
+import { Repository } from "../../git/repository";
 import { Route } from "../../fastify_types";
 import repo from "./repo";
 import { verifyRepoName } from "../util";
 
-export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, done: (err?: Error) => void): void {
-	const git = new GitAPI(opts.config.settings.base_dir);
-
+function setHandlers(fastify: FastifyInstance): void {
 	fastify.setErrorHandler((err, req, reply) => {
 		console.log(err);
 		reply.code(500).send({ error: "Internal server error!" });
@@ -14,21 +12,29 @@ export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, do
 	fastify.setNotFoundHandler((req, reply) => {
 		reply.code(404).send({ error: "Endpoint not found!" });
 	});
+}
 
-	fastify.route({
-		method: "GET",
-		url: "/info",
-		handler: (req, reply) => {
-			reply.send({ data: { title: opts.config.settings.title, about: opts.config.settings.about } });
-		}
-	});
+function reposEndpoints(fastify: FastifyInstance, opts: FastifyPluginOptions, done: (err?: Error) => void): void {
 	fastify.route({
 		method: "GET",
 		url: "/repos",
 		handler: async(req, reply) => {
-			const repos = await git.getRepositories();
+			const repos = await Repository.openAll(opts.config.settings.base_dir);
+
+			if(!repos) {
+				reply.send({ data: [] });
+				return;
+			}
 
-			reply.send({ data: repos });
+			reply.send({
+				data: await Promise.all(repos.map(async repository => {
+					return {
+						name: repository.name.short,
+						description: repository.description,
+						last_updated: (await repository.latestCommit()).date
+					};
+				}))
+			});
 		}
 	});
 
@@ -39,15 +45,36 @@ export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, do
 			const repo_verification = await verifyRepoName(opts.config.settings.base_dir, req.params.repo);
 			if(repo_verification.success === false && repo_verification.code) {
 				reply.code(repo_verification.code).send({ error: repo_verification.message });
+				return;
 			}
 
-			const desc = await git.getRepositoryFile(req.params.repo, "description");
+			const repository = await Repository.open(opts.config.settings.base_dir, req.params.repo);
 
-			reply.send({ data: { name: req.params.repo, description: desc, has_readme: await git.doesReadmeExist(req.params.repo) } });
+			reply.send({
+				data: {
+					name: repository.name.short,
+					description: repository.description,
+					has_readme: await (await repository.tree()).findExists("README.md")
+				}
+			});
+		}
+	});
+	done();
+}
+
+export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, done: (err?: Error) => void): void {
+	setHandlers(fastify);
+
+	fastify.route({
+		method: "GET",
+		url: "/info",
+		handler: (req, reply) => {
+			reply.send({ data: { title: opts.config.settings.title, about: opts.config.settings.about } });
 		}
 	});
 
-	fastify.register(repo, { prefix: "/repos/:repo", config: { git: git, settings: opts.config.settings } });
+	fastify.register(reposEndpoints, { config: { settings: opts.config.settings } });
+	fastify.register(repo, { prefix: "/repos/:repo", config: { settings: opts.config.settings } });
 
 	done();
 }
\ No newline at end of file
diff --git a/packages/server/src/api/v1/repo/branches.ts b/packages/server/src/api/v1/repo/branches.ts
index fd8056a..fe962aa 100644
--- a/packages/server/src/api/v1/repo/branches.ts
+++ b/packages/server/src/api/v1/repo/branches.ts
@@ -1,18 +1,22 @@
 import { FastifyInstance, FastifyPluginOptions } from "fastify";
-import { GitAPI } from "../../git";
+import { Branch } from "../../../git/branch";
 import { Route } from "../../../fastify_types";
-import { verifySHA } from "../../util";
 
 export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, done: (err?: Error) => void): void {
-	const git: GitAPI = opts.config.git;
-
 	fastify.route<Route>({
 		method: "GET",
 		url: "/branches",
 		handler: async(req, reply) => {
-			const branches = await git.getBranches(req.params.repo);
-
-			reply.send({ data: branches });
+			const branches = await (await req.repository).branches();
+
+			reply.send({
+				data: branches.map(branch => {
+					return {
+						id: branch.id,
+						name: branch.name
+					};
+				})
+			});
 		}
 	});
 
@@ -20,19 +24,20 @@ export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, do
 		method: "GET",
 		url: "/branches/:branch",
 		handler: async(req, reply) => {
-			const branch_verification = await verifySHA(git, req.params.repo, req.params.branch);
-			if(branch_verification.success === false && branch_verification.code) {
-				reply.code(branch_verification.code).send({ error: branch_verification.message });
-			}
-
-			const branch = await git.getBranch(req.params.repo, req.params.branch);
+			const branch = await Branch.lookup(await req.repository, req.params.branch);
 
 			if(!branch) {
 				reply.code(404).send({ error: "Branch not found!" });
 				return;
 			}
 
-			reply.send({ data: branch });
+			reply.send({
+				data: {
+					id: branch.id,
+					name: branch.name,
+					latest_commit: await branch.latestCommit()
+				}
+			});
 		}
 	});
 
diff --git a/packages/server/src/api/v1/repo/index.ts b/packages/server/src/api/v1/repo/index.ts
index 86e5d10..c13e173 100644
--- a/packages/server/src/api/v1/repo/index.ts
+++ b/packages/server/src/api/v1/repo/index.ts
@@ -1,37 +1,86 @@
-import { FastifyInstance, FastifyPluginOptions, FastifyRequest } from "fastify";
-import { GitAPI } from "../../git";
-import { Route } from "../../../fastify_types";
+import { CoolFastifyRequest, Route } from "../../../fastify_types";
+import { FastifyInstance, FastifyPluginOptions } from "fastify";
+import { Blob } from "../../../git/blob";
+import { Repository } from "../../../git/repository";
+import { Tag } from "../../../git/tag";
+import { TreeEntry } from "../../../git/tree_entry";
 import branches from "./branches";
 import log from "./log";
 import { verifyRepoName } from "../../util";
 
-export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, done: (err?: Error) => void): void {
-	const git: GitAPI = opts.config.git;
+declare module "fastify" {
+	interface FastifyRequest {
+		repository: Promise<Repository>,
+	}
+}
+
+function addHooks(fastify: FastifyInstance, opts: FastifyPluginOptions): void {
+	fastify.addHook("preHandler", (req: CoolFastifyRequest, reply, hookDone) => {
+		req.repository = Repository.open(opts.config.settings.base_dir, req.params.repo);
+
+		hookDone();
+	});
 
-	fastify.addHook("onRequest", async(req: FastifyRequest<Route>, reply) => {
+	fastify.addHook("onRequest", async(req: CoolFastifyRequest, reply) => {
 		const repo_verification = await verifyRepoName(opts.config.settings.base_dir, req.params.repo);
 		if(repo_verification.success === false && repo_verification.code) {
 			reply.code(repo_verification.code).send({ error: repo_verification.message });
 		}
+
 	});
+}
+async function treeEntryMap(entry: TreeEntry) {
+	const latest_commit = await entry.latestCommit();
+	return {
+		path: entry.path,
+		latest_commit: {
+			id: latest_commit.id,
+			message: latest_commit.message,
+			date: latest_commit.date
+		}
+	};
+}
 
-	fastify.register(log, { config: { git: git } });
-	fastify.register(branches, { config: { git: git } });
+async function tagMap(tag: Tag) {
+	const author = await tag.author();
+	return {
+		name: tag.name,
+		author: { name: author.name, email: author.email },
+		date: await tag.date()
+	};
+}
+
+export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, done: (err?: Error) => void): void {
+	addHooks(fastify, opts);
+
+	fastify.register(log);
+	fastify.register(branches);
 
 	fastify.route<Route>({
 		method: "GET",
 		url: "/tree",
 		handler: async(req, reply) => {
+			const tree = await (await req.repository).tree();
+
 			const tree_path = (Object.keys(req.query).length !== 0 && req.query.path) ? req.query.path : null;
+			if(tree_path) {
+				const tree_found = await tree.find(tree_path);
+
+				if(!tree_found) {
+					reply.code(404).send({ error: "Tree path not found!" });
+					return;
+				}
 
-			const tree = await git.getTree(req.params.repo, tree_path);
+				reply.send({
+					data: tree_found instanceof Blob
+						? { type: "blob", content: await tree_found.content() }
+						: { type: "tree", content: await Promise.all(tree_found.entries().map(treeEntryMap)) }
+				});
 
-			if(!tree) {
-				reply.code(404).send({ error: "Path not found" });
 				return;
 			}
 
-			reply.send({ data: tree });
+			reply.send({ data: await Promise.all(tree.entries().map(treeEntryMap)) });
 		}
 	});
 
@@ -39,8 +88,10 @@ export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, do
 		method: "GET",
 		url: "/tags",
 		handler: async(req, reply) => {
-			const refs = await git.getTags(req.params.repo);
-			reply.send({ data: refs });
+			const tags = await (await req.repository).tags();
+			reply.send({
+				data: await Promise.all(tags.map(tagMap))
+			});
 		}
 	});
 
diff --git a/packages/server/src/api/v1/repo/log.ts b/packages/server/src/api/v1/repo/log.ts
index f692b00..d21cfa8 100644
--- a/packages/server/src/api/v1/repo/log.ts
+++ b/packages/server/src/api/v1/repo/log.ts
@@ -1,23 +1,46 @@
 import { FastifyInstance, FastifyPluginOptions } from "fastify";
-import { GitAPI } from "../../git";
+import { Commit } from "../../../git/commit";
+import { Patch } from "../../../git/patch";
 import { Route } from "../../../fastify_types";
 import { verifySHA } from "../../util";
 
-export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, done: (err?: Error) => void): void {
-	const git: GitAPI = opts.config.git;
+async function commitMap(commit: Commit) {
+	const stats = await commit.stats();
+	return {
+		id: commit.id,
+		author: {
+			name: commit.author.name,
+			email: commit.author.email
+		},
+		message: commit.message,
+		date: commit.date,
+		insertions: stats.insertions,
+		deletions: stats.deletions,
+		files_changed: stats.files_changed
+	};
+}
+
+async function patchMap(patch: Patch) {
+	return {
+		additions: patch.additions,
+		deletions: patch.deletions,
+		from: patch.from,
+		to: patch.to,
+		too_large: patch.too_large,
+		hunks: await patch.getHunks()
+	};
+}
 
+export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, done: (err?: Error) => void): void {
 	fastify.route<Route>({
 		method: "GET",
 		url: "/log",
 		handler: async(req, reply) => {
-			const log = await git.getLog(req.params.repo);
+			const commits = (await (await req.repository).commits());
 
-			if(log.length === 0) {
-				reply.code(500).send({ error: "Internal server error!" });
-				return;
-			}
-
-			reply.send({ data: log });
+			reply.send({
+				data: await Promise.all(commits.map(commitMap))
+			});
 		}
 	});
 
@@ -25,14 +48,29 @@ export default function(fastify: FastifyInstance, opts: FastifyPluginOptions, do
 		method: "GET",
 		url: "/log/:commit",
 		handler: async(req, reply) => {
-			const commit_verification = await verifySHA(git, req.params.repo, req.params.commit);
+			const commit_verification = await verifySHA(await req.repository, req.params.commit);
 			if(commit_verification.success === false && commit_verification.code) {
 				reply.code(commit_verification.code).send({ error: commit_verification.message });
 			}
 
-			const commit = await git.getCommit(req.params.repo, req.params.commit);
+			const commit = await Commit.lookup(await req.repository, req.params.commit);
+
+			const stats = await commit.stats();
 
-			reply.send({ data: commit });
+			reply.send({
+				data: {
+					message: commit.message,
+					author: {
+						name: commit.author.name,
+						email: commit.author.email
+					},
+					date: commit.date,
+					insertions: stats.insertions,
+					deletions: stats.deletions,
+					files_changed: stats.files_changed,
+					diff: await Promise.all((await (await commit.diff()).getPatches()).map(patchMap))
+				}
+			});
 		}
 	});
 
diff --git a/packages/server/src/app.ts b/packages/server/src/app.ts
index 717f106..7bc66b2 100644
--- a/packages/server/src/app.ts
+++ b/packages/server/src/app.ts
@@ -1,6 +1,7 @@
 import { readFileSync, readdirSync } from "fs";
-import { GitAPI } from "./api/git";
+import { Repository } from "./git/repository";
 import { Route } from "./fastify_types";
+import { Tag } from "./git/tag";
 import api from "./api/v1";
 import { exit } from "process";
 import { fastify as fastifyFactory } from "fastify";
@@ -62,7 +63,11 @@ if(settings.production) {
 }
 
 const fastify = fastifyFactory();
-const git = new GitAPI(settings.base_dir);
+
+fastify.setErrorHandler((err, req, reply) => {
+	console.log(err);
+	reply.code(500).send("Internal server error!");
+});
 
 fastify.setNotFoundHandler({}, function(req, reply) {
 	reply.code(404).send("Page not found!");
@@ -112,7 +117,8 @@ fastify.route<Route>({
 			return;
 		}
 
-		git.connectToGitHTTPBackend(req, reply);
+		const repository = await Repository.open(settings.base_dir, req.params.repo);
+		repository.HTTPconnect(req, reply);
 	}
 });
 
@@ -127,7 +133,8 @@ fastify.route<Route>({
 			reply.code(repo_verification.code).send(repo_verification.message);
 		}
 
-		git.connectToGitHTTPBackend(req, reply);
+		const repository = await Repository.open(settings.base_dir, req.params.repo);
+		repository.HTTPconnect(req, reply);
 	}
 });
 
@@ -143,8 +150,16 @@ fastify.route({
 fastify.route<Route>({
 	method: "GET",
 	url: "/:repo([a-zA-Z0-9\\.\\-_]+)/refs/tags/:tag",
-	handler: (req, reply) => {
-		git.downloadTagArchive(req.params.repo, req.params.tag, reply);
+	handler: async(req, reply) => {
+		const repository = await Repository.open(settings.base_dir, req.params.repo);
+		const tag = await Tag.lookup(repository, req.params.tag);
+
+		if(!tag) {
+			reply.code(404).send("Tag not found!");
+			return;
+		}
+
+		tag.downloadTarball(reply);
 	}
 });
 
diff --git a/packages/server/src/fastify_types.ts b/packages/server/src/fastify_types.ts
index 986fdf2..baed761 100644
--- a/packages/server/src/fastify_types.ts
+++ b/packages/server/src/fastify_types.ts
@@ -1,5 +1,5 @@
+import { FastifyRequest, RequestGenericInterface } from "fastify";
 import { ReplyGenericInterface } from "fastify/types/reply";
-import { RequestGenericInterface } from "fastify";
 
 export interface Request extends RequestGenericInterface {
 	Params: {
@@ -10,4 +10,6 @@ export interface Request extends RequestGenericInterface {
 	}
 }
 
-export interface Route extends Request, ReplyGenericInterface {}
\ No newline at end of file
+export interface Route extends Request, ReplyGenericInterface {}
+
+export type CoolFastifyRequest = FastifyRequest<Route>;
\ No newline at end of file
diff --git a/packages/server/src/git/blob.ts b/packages/server/src/git/blob.ts
new file mode 100644
index 0000000..aa3f9ad
--- /dev/null
+++ b/packages/server/src/git/blob.ts
@@ -0,0 +1,13 @@
+import { TreeEntry as NodeGitTreeEntry } from "nodegit";
+
+export class Blob {
+	private _ng_tree_entry: NodeGitTreeEntry;
+
+	constructor(entry: NodeGitTreeEntry) {
+		this._ng_tree_entry = entry;
+	}
+
+	async content(): Promise<string> {
+		return this._ng_tree_entry.isBlob() ? (await this._ng_tree_entry.getBlob()).toString() : "";
+	}
+}
\ No newline at end of file
diff --git a/packages/server/src/git/branch.ts b/packages/server/src/git/branch.ts
new file mode 100644
index 0000000..2142724
--- /dev/null
+++ b/packages/server/src/git/branch.ts
@@ -0,0 +1,24 @@
+import { CommitSummary } from "./commit";
+import { Reference } from "./reference";
+import { Repository } from "./repository";
+
+export class Branch extends Reference {
+	async latestCommit(): Promise<CommitSummary> {
+		const latest_commit = this._owner.nodegitRepository.getBranchCommit(this._ng_reference);
+		return {
+			id: (await latest_commit).sha(),
+			message: (await latest_commit).message(),
+			date: (await latest_commit).time()
+		};
+	}
+
+	static async lookup(owner: Repository, branch: string): Promise<Branch | null> {
+		const reference = await owner.nodegitRepository.getBranch(branch).catch(err => {
+			if(err.errno === -3) {
+				return null;
+			}
+			throw(err);
+		});
+		return reference ? new Branch(owner, reference) : null;
+	}
+}
\ No newline at end of file
diff --git a/packages/server/src/git/commit.ts b/packages/server/src/git/commit.ts
new file mode 100644
index 0000000..64bae4d
--- /dev/null
+++ b/packages/server/src/git/commit.ts
@@ -0,0 +1,69 @@
+import { Commit as NodeGitCommit, Oid as NodeGitOid } from "nodegit";
+import { Author } from "./misc";
+import { Diff } from "./diff";
+import { Repository } from "./repository";
+import { Tree } from "./tree";
+
+export type CommitSummary = {
+	id: string | null,
+	message: string | null,
+	date: number | null
+}
+
+type DiffStats = {
+	insertions: number,
+	deletions: number,
+	files_changed: number
+}
+
+export class Commit {
+	private _ng_commit: NodeGitCommit;
+	private _owner: Repository;
+
+	public id: string;
+	public author: Author;
+	public date: number;
+	public message: string;
+
+	constructor(owner: Repository, commit: NodeGitCommit) {
+		this._ng_commit = commit;
+		this._owner = owner;
+
+		this.id = commit.sha();
+		this.author = {
+			name: commit.author().name(),
+			email: commit.author().email()
+		};
+		this.date = commit.time();
+		this.message = commit.message();
+	}
+
+	async diff(): Promise<Diff> {
+		return Diff.get((await this._ng_commit.getDiff())[0]);
+	}
+
+	async stats(): Promise<DiffStats> {
+		const stats = await (await this._ng_commit.getDiff())[0].getStats();
+
+		return {
+			insertions: <number>stats.insertions(),
+			deletions: <number>stats.deletions(),
+			files_changed: <number>stats.filesChanged()
+		};
+	}
+
+	async tree(): Promise<Tree> {
+		return new Tree(this._owner, await this._ng_commit.getTree());
+	}
+
+	static async lookup(repository: Repository, id: string | NodeGitOid): Promise<Commit> {
+		const commit = await NodeGitCommit.lookup(repository.nodegitRepository, id instanceof NodeGitOid ? id : NodeGitOid.fromString(id));
+		return new Commit(repository, commit);
+	}
+
+	static lookupExists(repository: Repository, id: string): Promise<boolean> {
+		return NodeGitCommit.lookup(repository.nodegitRepository, NodeGitOid.fromString(id))
+			.then(() => true)
+			.catch(() => false);
+	}
+}
\ No newline at end of file
diff --git a/packages/server/src/git/diff.ts b/packages/server/src/git/diff.ts
new file mode 100644
index 0000000..a3ea375
--- /dev/null
+++ b/packages/server/src/git/diff.ts
@@ -0,0 +1,63 @@
+import { Diff as NodeGitDiff } from "nodegit";
+import { Patch } from "./patch";
+
+type PatchHeaderData = {
+	indexes: number[],
+	lengths: number[],
+	last: number | null
+}
+
+type DiffConstructorData = {
+	patch_buf: string,
+	patch_header_buf: string
+}
+
+export class Diff {
+	private _ng_diff: NodeGitDiff;
+
+	public raw_patches: string;
+	public patch_header_indexes: number[];
+	public patch_header_lengths: number[];
+
+	constructor(diff: NodeGitDiff, data: DiffConstructorData) {
+		this._ng_diff = diff;
+		this.raw_patches = data.patch_buf;
+
+		const raw_patches_arr = this.raw_patches.split("\n");
+		const patch_headers = data.patch_header_buf.split("\n");
+
+		const patch_header_data = patch_headers.reduce((result, line, index) => {
+			// The start of a patch header
+			if((/^diff --git/u).test(line)) {
+				result.indexes.push(raw_patches_arr.indexOf(line));
+
+				if(result.last !== null) {
+					result.lengths.push(patch_headers.slice(result.last, index).length);
+				}
+				result.last = index;
+			}
+
+			// Include the last patch header when the end is reached
+			if(index === patch_headers.length - 1 && result.last !== null) {
+				result.lengths.push(patch_headers.slice(result.last, index).length);
+			}
+
+			return result;
+		}, <PatchHeaderData>{ indexes: [], lengths: [], last: null });
+
+		this.patch_header_indexes = patch_header_data.indexes;
+		this.patch_header_lengths = patch_header_data.lengths;
+
+	}
+
+	async getPatches(): Promise<Patch[]> {
+		return (await this._ng_diff.patches()).map((patch, index) => new Patch(this, patch, index));
+	}
+
+	static async get(diff: NodeGitDiff): Promise<Diff> {
+		return new Diff(diff, {
+			patch_buf: String((await diff.toBuf(1))),
+			patch_header_buf: String((await diff.toBuf(2)))
+		});
+	}
+}
\ No newline at end of file
diff --git a/packages/server/src/git/http.ts b/packages/server/src/git/http.ts
new file mode 100644
index 0000000..2d707cb
--- /dev/null
+++ b/packages/server/src/git/http.ts
@@ -0,0 +1,84 @@
+import { FastifyReply, FastifyRequest } from "fastify";
+import { IncomingMessage } from "http";
+import { Repository } from "./repository";
+import { Route } from "../fastify_types";
+import { join } from "path";
+import { spawn } from "child_process";
+import { verifyGitRequest } from "../api/util";
+
+export type RequestInfo = {
+	repo: string,
+	url_path: string,
+	parsed_url: URL,
+	url_path_parts: string[],
+	is_discovery: boolean,
+	service: string | null,
+	content_type: string
+}
+
+export interface Request extends FastifyRequest {
+	params: Route["Params"],
+}
+
+function getRequestInfo(req: Request): RequestInfo {
+	const repo = req.params.repo + ".git";
+	const url_path = req.url.replace(req.params.repo, repo);
+
+	const parsed_url = new URL(`${req.protocol}://${req.hostname}${url_path}`);
+	const url_path_parts = parsed_url.pathname.split("/");
+
+	const is_discovery = (/\/info\/refs$/u).test(parsed_url.pathname);
+
+	const service = is_discovery ? parsed_url.searchParams.get("service") : url_path_parts[url_path_parts.length - 1];
+
+	const content_type = `application/x-${service}-${is_discovery ? "advertisement" : "result"}`;
+
+	return {
+		repo,
+		url_path,
+		parsed_url,
+		is_discovery,
+		url_path_parts,
+		service,
+		content_type
+	};
+}
+
+export function connect(repository: Repository, req: Request, reply: FastifyReply): void {
+	const request_info = getRequestInfo(req);
+
+	const valid_request = verifyGitRequest(request_info);
+	if(valid_request.success === false && valid_request.code) {
+		reply.header("Content-Type", request_info.content_type);
+		reply.code(valid_request.code).send(valid_request.message);
+		return;
+	}
+
+	reply.raw.writeHead(200, { "Content-Type": request_info.content_type });
+
+	const spawn_args = [ "--stateless-rpc", join(repository.base_dir, request_info.repo) ];
+	if(request_info.is_discovery) {
+		spawn_args.push("--advertise-refs");
+	}
+
+	const git_pack = spawn(<string>request_info.service, spawn_args);
+
+	if(request_info.is_discovery) {
+		const s = "# service=" + request_info.service + "\n";
+		const n = (4 + s.length).toString(16);
+		reply.raw.write(Buffer.from((Array(4 - n.length + 1).join("0") + n + s) + "0000"));
+	}
+	else {
+		const request_body: IncomingMessage = req.raw;
+
+		request_body.on("data", data => git_pack.stdin.write(data));
+		request_body.on("close", () => git_pack.stdin.end());
+	}
+
+	git_pack.on("error", err => console.log(err));
+
+	git_pack.stderr.on("data", (stderr: Buffer) => console.log(stderr.toString()));
+	git_pack.stdout.on("data", data => reply.raw.write(data));
+
+	git_pack.on("close", () => reply.raw.end());
+}
\ No newline at end of file
diff --git a/packages/server/src/git/misc.ts b/packages/server/src/git/misc.ts
new file mode 100644
index 0000000..fcfaf29
--- /dev/null
+++ b/packages/server/src/git/misc.ts
@@ -0,0 +1,36 @@
+import { readFile, readdir } from "fs";
+
+export async function findAsync<T>(arr: T[], callback: (t: T) => Promise<boolean>): Promise<T> {
+	const results = await Promise.all(arr.map(callback));
+	const index = results.findIndex(result => result);
+	return arr[index];
+}
+
+export type Author = {
+	name: string,
+	email: string
+}
+
+export function getFile(base_dir: string, repository: string, file: string): Promise<string | null> {
+	return new Promise(resolve => {
+		readFile(`${base_dir}/${repository}/${file}`, (err, content) => {
+			if(err) {
+				resolve(null);
+				return;
+			}
+			resolve(content.toString().replace(/\n/gu, ""));
+		});
+	});
+}
+
+export function getDirectory(directory: string): Promise<string[]> {
+	return new Promise<string[]>(resolve => {
+		readdir(directory, (err, dir_content) => {
+			if(err) {
+				resolve([]);
+			}
+
+			resolve(dir_content);
+		});
+	});
+}
\ No newline at end of file
diff --git a/packages/server/src/git/patch.ts b/packages/server/src/git/patch.ts
new file mode 100644
index 0000000..71d9193
--- /dev/null
+++ b/packages/server/src/git/patch.ts
@@ -0,0 +1,113 @@
+import { Diff } from "./diff";
+import { ConvenientPatch as NodeGitPatch } from "nodegit";
+
+type Hunk = {
+	new_start: number,
+	new_lines_cnt: number,
+	old_start: number,
+	old_lines_cnt: number,
+	new_lines: number[],
+	deleted_lines: number[],
+	hunk: string
+}
+
+type Hunks = {
+	prev: null | number,
+	hunks: Hunk[]
+}
+
+function getHunkContent(hunk: string[]) {
+	interface Lines {
+		new_lines: number[],
+		deleted_lines: number[]
+	}
+
+	const lines = hunk.reduce((result: Lines, line, index) => {
+		if(line.charAt(0) === "+") {
+			hunk[index] = line.slice(1);
+			result.new_lines.push(index);
+		}
+		else if(line.charAt(0) === "-") {
+			hunk[index] = line.slice(1);
+			result.deleted_lines.push(index);
+		}
+		return result;
+	}, { new_lines: [], deleted_lines: [] });
+
+	return { ...lines, hunk: hunk.join("\n") };
+}
+
+export class Patch {
+	private _ng_patch: NodeGitPatch;
+
+	public from: string;
+	public to: string;
+	public additions: number;
+	public deletions: number;
+	public too_large = false;
+	public content: string | null = null;
+
+	constructor(diff: Diff, patch: NodeGitPatch, index: number) {
+		this._ng_patch = patch;
+
+		this.from = patch.oldFile().path();
+		this.to = patch.newFile().path();
+		this.additions = patch.lineStats()["total_additions"];
+		this.deletions = patch.lineStats()["total_deletions"];
+
+		const raw_patches_arr = diff.raw_patches.split("\n");
+		const start = diff.patch_header_indexes[index] + diff.patch_header_lengths[index];
+		const end = (typeof diff.patch_header_indexes[index + 1] === "undefined") ? raw_patches_arr.length - 1 : diff.patch_header_indexes[index + 1];
+
+		const patch_content = raw_patches_arr.slice(start, end);
+
+		if(patch_content.length !== 0) {
+			this.content = patch_content.join("\n");
+
+			const line_lengths = patch_content.map(line => line.length).reduce((result, length) => result + length);
+
+			if(patch_content.length > 5000 || line_lengths > 5000) {
+				this.too_large = true;
+			}
+		}
+	}
+
+	async getHunks(): Promise<Hunk[] | null> {
+		if(!this.content) {
+			return null;
+		}
+
+		const content = this.content.split("\n");
+		const hunks = await this._ng_patch.hunks();
+
+		const hunks_data = hunks.reduce((result: Hunks, hunk, hunk_index) => {
+			const hunk_header = hunk.header();
+			const hunk_header_index = content.indexOf(hunk_header.replace(/\n/gu, ""));
+
+			if(result.prev !== null) {
+				const prev_hunk = hunks[hunk_index - 1];
+				result.hunks.push({
+					new_start: prev_hunk.newStart(),
+					new_lines_cnt: prev_hunk.newLines(),
+					old_start: prev_hunk.oldStart(),
+					old_lines_cnt: prev_hunk.oldLines(),
+					...getHunkContent(content.slice(result.prev, hunk_header_index))
+				});
+			}
+
+			result.prev = hunk_header_index;
+			return result;
+		}, { prev: null, hunks: [] });
+
+		const prev_hunk = hunks[hunks.length - 1];
+		hunks_data.hunks.push({
+			new_start: prev_hunk.newStart(),
+			new_lines_cnt: prev_hunk.newLines(),
+			old_start: prev_hunk.oldStart(),
+			old_lines_cnt: prev_hunk.oldLines(),
+			...getHunkContent(content.slice(<number>hunks_data.prev))
+		});
+
+		return hunks_data.hunks;
+	}
+}
\ No newline at end of file
diff --git a/packages/server/src/git/reference.ts b/packages/server/src/git/reference.ts
new file mode 100644
index 0000000..910fa7d
--- /dev/null
+++ b/packages/server/src/git/reference.ts
@@ -0,0 +1,18 @@
+import { Reference as NodeGitReference } from "nodegit";
+import { Repository } from "./repository";
+
+export abstract class Reference {
+	protected _ng_reference: NodeGitReference;
+	protected _owner: Repository;
+
+	id: string;
+	name: string;
+
+	constructor(owner: Repository, reference: NodeGitReference) {
+		this._ng_reference = reference;
+		this._owner = owner;
+
+		this.id = reference.target().tostrS();
+		this.name = reference.shorthand();
+	}
+}
\ No newline at end of file
diff --git a/packages/server/src/git/repository.ts b/packages/server/src/git/repository.ts
new file mode 100644
index 0000000..ac0927a
--- /dev/null
+++ b/packages/server/src/git/repository.ts
@@ -0,0 +1,105 @@
+import { Object as NodeGitObject, Oid as NodeGitOid, Repository as NodeGitRepository, Revwalk as NodeGitRevwalk } from "nodegit";
+import { Request, connect } from "./http";
+import { basename, dirname } from "path";
+import { getDirectory, getFile } from "./misc";
+import { Branch } from "./branch";
+import { Commit } from "./commit";
+import { FastifyReply } from "fastify";
+import { Tag } from "./tag";
+import { Tree } from "./tree";
+
+function getFullRepositoryName(repo_name: string) {
+	return repo_name.endsWith(".git") ? repo_name : `${repo_name}.git`;
+}
+
+type RepositoryName = {
+	short: string,
+	full: string,
+}
+
+type RepositoryConstructorData = {
+	description: string | null,
+	owner: string | null
+}
+
+export class Repository {
+	private _ng_repository: NodeGitRepository;
+
+	public name: RepositoryName;
+	public base_dir: string;
+	public description: string | null;
+	public owner: string | null;
+
+	constructor(repository: NodeGitRepository, data: RepositoryConstructorData) {
+		this._ng_repository = repository;
+		this.name = {
+			short: basename(repository.path()).slice(0, -4),
+			full: basename(repository.path())
+		};
+		this.base_dir = dirname(repository.path());
+		this.description = data.description;
+		this.owner = data.owner;
+	}
+
+	async commits(): Promise<Commit[]> {
+		const walker = NodeGitRevwalk.create(this._ng_repository);
+		walker.pushHead();
+
+		return Promise.all((await walker.getCommitsUntil(() => true)).map(commit => new Commit(this, commit)));
+	}
+
+	async tree(): Promise<Tree> {
+		const master_commit = await this._ng_repository.getMasterCommit();
+		const tree = await master_commit.getTree();
+		return new Tree(this, tree);
+	}
+
+	lookupExists(id: string): Promise<boolean> {
+		return NodeGitObject.lookup(this._ng_repository, NodeGitOid.fromString(id), NodeGitObject.TYPE.ANY)
+			.then(() => true)
+			.catch(() => false);
+	}
+
+	async branches(): Promise<Branch[]> {
+		const references = await this._ng_repository.getReferences();
+		return references.filter(ref => ref.isBranch()).map(branch => new Branch(this, branch));
+	}
+
+	async tags(): Promise<Tag[]> {
+		const references = await this._ng_repository.getReferences();
+		return references.filter(ref => ref.isTag()).map(tag => new Tag(this, tag));
+	}
+
+	async latestCommit(): Promise<Commit> {
+		return new Commit(this, await this._ng_repository.getMasterCommit());
+	}
+
+	HTTPconnect(req: Request, reply: FastifyReply): void {
+		connect(this, req, reply);
+	}
+
+	get nodegitRepository(): NodeGitRepository {
+		return this._ng_repository;
+	}
+
+	static async open(base_dir: string, repository: string): Promise<Repository> {
+		const ng_repository = await NodeGitRepository.openBare(`${base_dir}/${getFullRepositoryName(repository)}`);
+
+		return new Repository(ng_repository, {
+			description: await getFile(base_dir, getFullRepositoryName(repository), "description"),
+			owner: await getFile(base_dir, getFullRepositoryName(repository), "owner")
+		});
+	}
+
+	static async openAll(base_dir: string): Promise<Repository[] | null> {
+		const dir_content = await getDirectory(base_dir);
+
+		if(dir_content.length === 0) {
+			return null;
+		}
+
+		const repositories = dir_content.filter(dir_entry => dir_entry.endsWith(".git"));
+
+		return Promise.all(repositories.map(repository => this.open(base_dir, repository)));
+	}
+}
\ No newline at end of file
diff --git a/packages/server/src/git/tag.ts b/packages/server/src/git/tag.ts
new file mode 100644
index 0000000..ffda9c4
--- /dev/null
+++ b/packages/server/src/git/tag.ts
@@ -0,0 +1,80 @@
+import { Object as NodeGitObject, Tag as NodeGitTag } from "nodegit";
+import { Pack, pack } from "tar-stream";
+import { Author } from "./misc";
+import { Blob } from "./blob";
+import { Commit } from "./commit";
+import { FastifyReply } from "fastify";
+import { Reference } from "./reference";
+import { Repository } from "./repository";
+import { Tree } from "./tree";
+import { TreeEntry } from "./tree_entry";
+import { createGzip } from "zlib";
+import { pipeline } from "stream";
+
+async function addArchiveEntries(entries: TreeEntry[], repository: string, archive: Pack) {
+	for(const tree_entry of entries) {
+		const peeled = (await tree_entry.peel());
+
+		if(tree_entry.type === "blob") {
+			if(peeled instanceof Blob) {
+				archive.entry({ name: `${repository}/${tree_entry.path}` }, await peeled.content());
+			}
+		}
+		else if(peeled instanceof Tree) {
+			addArchiveEntries(peeled.entries(), repository, archive);
+		}
+	}
+}
+
+export class Tag extends Reference {
+	async author(): Promise<Author> {
+		const tagger = (await NodeGitTag.lookup(this._owner.nodegitRepository, this._ng_reference.target())).tagger();
+		return {
+			name: tagger.name(),
+			email: tagger.email()
+		};
+	}
+
+	async date(): Promise<number> {
+		return (await NodeGitTag.lookup(this._owner.nodegitRepository, this._ng_reference.target())).tagger().when()
+			.time();
+	}
+
+	async downloadTarball(reply: FastifyReply): Promise<void> {
+		const commit = await Commit.lookup(this._owner, (await this._ng_reference.peel(NodeGitObject.TYPE.COMMIT)).id());
+		const tree = await commit.tree();
+
+		const archive = pack();
+		const gzip = createGzip();
+
+		reply.raw.writeHead(200, {
+			"Content-Encoding": "gzip",
+			"Content-Type": "application/gzip",
+			"Content-Disposition": `attachment; filename="${this._owner.name.short}-${this._owner.name.short}.tar.gz"`
+		});
+
+		pipeline(archive, gzip, reply.raw, () => reply.raw.end());
+
+		gzip.on("close", () => reply.raw.end());
+		gzip.on("error", () => reply.raw.end());
+		archive.on("error", () => reply.raw.end());
+
+		addArchiveEntries(await tree.entries(), this._owner.name.short, archive)
+			.then(() => archive.finalize())
+			.catch(() => {
+				archive.finalize();
+				reply.raw.end();
+			});
+	}
+
+	static async lookup(owner: Repository, tag: string): Promise<Tag | null> {
+		const reference = await owner.nodegitRepository.getReference(tag).catch(err => {
+			if(err.errno === -3) {
+				return null;
+			}
+
+			throw(err);
+		});
+		return reference ? new Tag(owner, reference) : null;
+	}
+}
\ No newline at end of file
diff --git a/packages/server/src/git/tree.ts b/packages/server/src/git/tree.ts
new file mode 100644
index 0000000..b9bd142
--- /dev/null
+++ b/packages/server/src/git/tree.ts
@@ -0,0 +1,39 @@
+import { Blob } from "./blob";
+import { Tree as NodeGitTree } from "nodegit";
+import { Repository } from "./repository";
+import { TreeEntry } from "./tree_entry";
+
+export class Tree {
+	private _ng_tree: NodeGitTree;
+	private _owner: Repository;
+
+	constructor(owner: Repository, tree: NodeGitTree) {
+		this._ng_tree = tree;
+		this._owner = owner;
+	}
+
+	entries(): TreeEntry[] {
+		return this._ng_tree.entries().map(entry => new TreeEntry(this._owner, entry));
+	}
+
+	async find(path: string): Promise<Blob | Tree | null> {
+		const entry = await this._ng_tree.getEntry(path).catch(err => {
+			if(err.errno === -3) {
+				return null;
+			}
+			throw(err);
+		});
+
+		if(!entry) {
+			return null;
+		}
+
+		return entry.isBlob() ? new Blob(entry) : new Tree(this._owner, await entry.getTree());
+	}
+
+	findExists(path: string): Promise<boolean> {
+		return this._ng_tree.getEntry(path)
+			.then(() => true)
+			.catch(() => false);
+	}
+}
\ No newline at end of file
diff --git a/packages/server/src/git/tree_entry.ts b/packages/server/src/git/tree_entry.ts
new file mode 100644
index 0000000..3bcf10e
--- /dev/null
+++ b/packages/server/src/git/tree_entry.ts
@@ -0,0 +1,40 @@
+import { Blob } from "./blob";
+import { Commit } from "./commit";
+import { TreeEntry as NodeGitTreeEntry } from "nodegit";
+import { Repository } from "./repository";
+import { Tree } from "./tree";
+import { dirname } from "path";
+import { findAsync } from "./misc";
+
+export class TreeEntry {
+	private _ng_tree_entry: NodeGitTreeEntry;
+	private _owner: Repository;
+
+	public path: string;
+	public type: "blob" | "tree";
+
+	constructor(owner: Repository, entry: NodeGitTreeEntry) {
+		this._ng_tree_entry = entry;
+		this._owner = owner;
+
+		this.path = entry.path();
+		this.type = entry.isBlob() ? "blob" : "tree";
+	}
+
+	async latestCommit(): Promise<Commit> {
+		const commits = await this._owner.commits();
+
+		return findAsync(commits, async commit => {
+			const diff = await commit.diff();
+			const patches = await diff.getPatches();
+
+			return Boolean(this.type === "blob"
+				? patches.find(patch => patch.to === this.path)
+				: patches.find(patch => dirname(patch.to).startsWith(this.path)));
+		});
+	}
+
+	async peel(): Promise<Blob | Tree> {
+		return this.type === "blob" ? new Blob(this._ng_tree_entry) : new Tree(this._owner, await this._ng_tree_entry.getTree());
+	}
+}
\ No newline at end of file