Добавлена команда export для экспорта в архив tar.gz файлов указанного состояния снимка, по умолчанию экспортируется текущее состояние снимка

source/app.d

@@ -12,6 +12,16 @@ 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("diff", "Show changed data"))
+		.add(new Command("export", "Export snapshot to a tar.gz archive")
+			.add(new Argument("path", "Output directory path for the archive").required)
+			.add(new Option("s", "snapshot", "Specify snapshot hash")
+				.optional
+				.validateEachWith(
+					opt => opt.isValidHash,
+					"must contain snapshot hash provided"
+				)
+			)
+		)
 		.add(new Command("create", "Create a new snapshot")
 			.add(new Option("c", "comment", "Specify comment")
 				.optional
@@ -50,7 +60,7 @@ int main(string[] args)
 			)
 		)
 		.add(new Command("restore", "Restore to the specified snapshot state")
-			.add(new Argument("hash", "hash").required)
+			.add(new Argument("snapshot", "Specify snapshot hash").required)
 		)
 		.add(new Option("c", "config", "Сonfiguration file path")
 			.optional
@@ -100,7 +110,13 @@ int main(string[] args)
 				)
 			)
 			.on("restore", restore =>
-				snag.restore(restore.arg("hash"))
+				snag.restore(restore.arg("snapshot"))
+			)
+			.on("export", e =>
+				snag.exportSnapshot(
+					e.arg("path"),
+					e.option("snapshot", ""),
+				)
 			);
 	} catch (SnagException e) {
 		e.print();

source/snag/core/core.d

@@ -8,6 +8,8 @@ import std.array;
 import std.process;
 import std.algorithm;
 import std.string;
+import std.file;
+import std.path;
 
 import snag.lib;
 import snag.core.exception;
@@ -22,10 +24,9 @@ class Snag {
 			"git --git-dir=%s --work-tree=%s",
 			config.git, config.project
 		).split();
+
 		_config = config;
-
 		auto currentTime = Clock.currTime();
-
 		_date = format("%02d%03d%02d%02d%02d",
 						currentTime.year % 100,
 						currentTime.dayOfYear,
@@ -67,12 +68,10 @@ class Snag {
 			["status", "--porcelain"],
 			"An error occurred while checking the file tracking status"
 		);
-
 		if (!result.output.length) {
 			writeln("The current state of the files is up to date as of the latest snapshot");
 			return;
 		}
-
 		writeln("The following list of files requires backup:");
 		result.output.split('\n').filter!(e => !e.strip.empty).each!((e) {
 			writefln("\t/%s", e.strip.split[1]);
@@ -205,18 +204,20 @@ class Snag {
 			throw new SnagException(
 				"Invalid snapshot hash provided"
 			);
-
 		auto result = git(
 			["status", "--porcelain"],
 			"An error occurred while checking the file tracking status"
 		);
-
-		if (result.output.length)
+		if (result.output.length) {
 			git(
 				["restore", "."],
 				"Failed to reset file changes state"
 			);
-
+			git(
+				["clean", "-fd"],
+				"Failed to clean untracked files"
+			);
+		}
 		git(
 			["rev-parse", hash],
 			"This snapshot is not available in the archive"
@@ -239,4 +240,48 @@ class Snag {
 		}
 		writeln("No changes at the moment");
 	}
+
+	void exportSnapshot(string path, string hash) {
+		try {
+			!path.isDir &&
+				throw new SnagException(
+						"Path is not a directory"
+					);
+		} catch (Exception e) {
+			throw new SnagException(
+					"Failed to verify the archive output directory:\n\t"
+					~ e.msg
+				);
+		}
+		if (hash.length) {
+			!isValidHash(hash) &&
+				throw new SnagException(
+					"Invalid snapshot hash provided"
+				);
+			git(
+				["rev-parse", hash],
+				"This snapshot is not available in the archive"
+			);
+		} else {
+			hash = git(
+				["rev-parse", "--short", "HEAD"],
+				"Failed to retrieve current snapshot information"
+			).output.strip('\n');
+		}
+		string file = buildPath(
+				path.absolutePath.buildNormalizedPath,
+				"%s-%s.tar.gz".format(_date, hash)
+			);
+		git(
+			[
+				"archive",
+				"--format=tar.gz",
+				hash,
+				"-o",
+				file
+			],
+			"Failed to export snapshot to archive"
+		);
+		writeln("Export to archive completed successfully: ", file);
+	}
 }

source/snag/version_.d

@@ -1,3 +1,3 @@
 module snag.version_;
 
-enum snagVersion = "0.0.8";
+enum snagVersion = "0.0.9";