0.0.5

- list - получение списка бэкапов (снимков состояния)
- restore - восстановить состояние файлов указанного снимка
Изменено:
- create - создание снимков выполняется через ответвление и мердж ответвленной ветки

Текущие изменения позволяют создавать репозиторий, делать снимки состояния файлов и восстанавливать конкретное состояние

.vscode/launch.json

@@ -10,7 +10,8 @@
 			"dubBuild": true,
 			"name": "Build & Debug DUB project",
 			"cwd": "${command:dubWorkingDirectory}",
-			"program": "bin/${command:dubTarget}"
+			"program": "bin/${command:dubTarget}",
+			"args": ["list"]
 		}
 	]
 }

snag.json

@@ -1,6 +1,6 @@
 {
 	"git": "/tmp/testgit",
-	"project": "/home/alexander/Programming/new/dlang/snag/source",
+	"project": "/tmp/test",
 	"email": "user@site.domain",
 	"user": "snag",
 	"presnag": [

source/app.d

@@ -12,6 +12,10 @@ int main(string[] args)
 		.add(new Command("init", "Initializing the repository for storing snapshots"))
 		.add(new Command("status", "Checking the status of tracked files"))
 		.add(new Command("create", "Create a new backup"))
+		.add(new Command("list", "List of backups"))
+		.add(new Command("restore", "Restore to the specified snapshot state")
+			.add(new Argument("hash", "hash").required)
+		)
 		.add(new Option("c", "config", "Сonfiguration file path")
 			.optional
 			.validateEachWith(
@@ -33,18 +37,24 @@ int main(string[] args)
 	}
 
 	auto snag = new Snag(config);
-
+	import std.stdio;
 	try {
 		argumets
-			.on("init", (init) {
-				snag.initialize();
-			})
-			.on("status", (status) {
-				snag.status();
-			})
-			.on("create", (create) {
-				snag.create();
-			});
+			.on("init", init =>
+				snag.initialize()
+			)
+			.on("status", status =>
+				snag.status()
+			)
+			.on("create", create =>
+				snag.create()
+			)
+			.on("list", list =>
+				snag.list()
+			)
+			.on("restore", restore =>
+				snag.restore(restore.arg("hash"))
+			);
 	} catch (SnagException e) {
 		e.print();
 		return EXIT_FAILURE;

source/snag/core/core.d

@@ -7,6 +7,7 @@ import std.array;
 import std.process;
 import std.algorithm;
 import std.string;
+import std.regex;
 
 import snag.core.exception;
 
@@ -14,6 +15,11 @@ class Snag {
 	private string[] _baseCommand;
 	private SnagConfig _config;
 
+	private bool isValidHash(string hash) {
+		auto hashPattern = ctRegex!r"^[a-fA-F0-9]{7}$";
+		return !matchFirst(hash, hashPattern).empty;
+	}
+
 	this(SnagConfig config) {
 		_baseCommand = format(
 			"git --git-dir=%s --work-tree=%s",
@@ -67,9 +73,9 @@ class Snag {
 		writeln("The following list of files requires backup:");
 
 		/**
-		Цепочка выполняет разбивку по переводу на новую строку,
-		отсеивает пустые строки, перебирает в цикле имеющиеся строки,
-		выводит только вторую часть строки (разделенную по пробелу)
+		* Цепочка выполняет разбивку по переводу на новую строку,
+		* отсеивает пустые строки, перебирает в цикле имеющиеся строки,
+		* выводит только вторую часть строки (разделенную по пробелу)
 		*/
 		result.output.split('\n').filter!(e => !e.strip.empty).each!((e) {
 			writefln("\t/%s", e.strip.split[1]);
@@ -77,7 +83,45 @@ class Snag {
 	}
 
 	void create() {
+		/**
+		* Проверка файлов на состояние изменения
+		*/
 		auto result = execute(
+			_baseCommand ~ ["status", "--porcelain"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"An error occurred while checking the file tracking status:\n"
+				~ result.output
+			);
+		if (!result.output.length)
+			throw new SnagException(
+				"Current file state doesn't need to be archived again"
+			);
+
+		result = execute(
+			_baseCommand ~ [
+				"rev-parse", "--short", "HEAD"
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to retrieve current snapshot information:\n"
+				~ result.output
+			);
+
+		string currentSnapshot = result.output.strip('\n');
+
+		result = execute(
+			_baseCommand ~ [
+				"checkout",
+				"-b",
+				"mod",
+				currentSnapshot
+			]
+		);
+
+		result = execute(
 			_baseCommand ~ ["add", "."]
 		);
 		if (result.status)
@@ -95,6 +139,136 @@ class Snag {
 				~ result.output
 			);
 
+		result = execute(
+			_baseCommand ~ ["checkout", "master"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to perform intermediate state switching:\n"
+				~ result.output
+			);
+
+		result = execute(
+			_baseCommand ~ [
+				"merge",
+				"-X",
+				"theirs",
+				"--squash",
+				"mod"
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to retrieve changes from the new intermediate snapshot:\n"
+				~ result.output
+			);
+
+		result = execute(
+			_baseCommand ~ ["commit", "-m", "test"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to create backup after acquiring new intermediate snapshot:\n"
+				~ result.output
+			);
+		
+		result = execute(
+			_baseCommand ~ ["branch", "-D", "mod"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Error while deleting temporary intermediate snapshot:\n"
+				~ result.output
+			);
+
 		writeln("Backup was created successfully");
 	}
+
+	void list() {
+		auto result = execute(
+			_baseCommand ~ [
+				"rev-parse", "--short", "HEAD"
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to retrieve current snapshot information:\n"
+				~ result.output
+			);
+
+		string current = result.output.strip('\n');
+
+		result = execute(
+			_baseCommand ~ [
+				"log",
+				"--all",
+				"--date=format:%Y.%m.%d %H:%M",
+				"--pretty=format:%ad\t%h"
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to retrieve the list of snapshots:\n"
+				~ result.output
+			);
+
+		result.output.split('\n').each!((e) {
+			auto eArray = e.split('\t');
+			if (current == eArray[1])
+				writefln("    >\t%s\t%s", eArray[0], eArray[1]);
+			else
+				writefln("\t%s\t%s", eArray[0], eArray[1]);
+		});
+	}
+
+	void restore(string hash) {
+		if (!isValidHash(hash))
+			throw new SnagException(
+				"Invalid snapshot hash provided"
+			);
+
+		auto result = execute(
+			_baseCommand ~ ["status", "--porcelain"]
+		);
+		if (result.status)
+			throw new SnagException(
+				"An error occurred while checking the file tracking status:\n"
+				~ result.output
+			);
+
+		if (result.output.length) {
+			result = execute(
+				_baseCommand ~ ["restore", "."]
+			);
+			if (result.status)
+				throw new SnagException(
+					"Failed to reset file changes state:\n"
+					~ result.output
+				);
+		}
+
+		result = execute(
+			_baseCommand ~ [
+				"rev-parse", hash
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"This snapshot is not available in the archive:\n"
+				~ result.output.split('\n')[0]
+			);
+
+		result = execute(
+			_baseCommand ~ [
+				"checkout", hash
+			]
+		);
+		if (result.status)
+			throw new SnagException(
+				"Failed to restore the snapshot state %s:\n"
+				.format(hash, result.output)
+			);
+
+		writeln("Backup was restored successfully");
+	}
 }

source/snag/version_.d

@@ -1,3 +1,3 @@
 module snag.version_;
 
-enum snagVersion = "0.0.4";
+enum snagVersion = "0.0.5";