--- a/src/HashAttributeFinder.h	Mon Nov 11 14:42:13 2019 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,102 +0,0 @@
-/**
- * Relational pipes
- * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, version 3 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#pragma once
-
-#include <vector>
-#include <filesystem>
-
-#include <relpipe/writer/typedefs.h>
-#include <relpipe/writer/AttributeMetadata.h>
-#include <relpipe/writer/RelationalWriter.h>
-#include <regex>
-
-#include "RequestedField.h"
-#include "SystemProcess.h"
-#include "AttributeFinder.h"
-
-namespace relpipe {
-namespace in {
-namespace filesystem {
-
-namespace fs = std::filesystem;
-using namespace relpipe::writer;
-
-class HashAttributeFinder : public AttributeFinder {
-private:
-	std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
-
-	std::wregex standardHashPattern = std::wregex(L"^([a-f0-9]+) .*");
-
-	string_t getStandardHash(const fs::path& file, const std::string& hashCommand) {
-		try {
-			SystemProcess process({hashCommand, currentFileRaw});
-			string_t output = convertor.from_bytes(process.execute());
-
-			std::wsmatch match;
-			if (regex_search(output, match, standardHashPattern)) return match[1];
-			else throw RelpipeWriterException(L"Hash command returned wrong output: " + output);
-		} catch (relpipe::cli::RelpipeCLIException& e) {
-			// TODO: print warnings?
-			// TODO: do not fork/exec if the file is not readable
-			return L"";
-		}
-	}
-protected:
-
-	virtual void writeFieldOfExistingFile(RelationalWriter* writer, const RequestedField& field) override {
-		// TODO: paralelization?
-		// TODO: other formats, not only hex, but also base64 or binary
-		if (field.group == RequestedField::GROUP_HASH) {
-			for (string_t alias : field.getAliases()) {
-				if (field.name == FIELD_MD5) writer->writeAttribute(getStandardHash(currentFile, "md5sum"));
-				else if (field.name == FIELD_SHA1) writer->writeAttribute(getStandardHash(currentFile, "sha1sum"));
-				else if (field.name == FIELD_SHA256) writer->writeAttribute(getStandardHash(currentFile, "sha256sum"));
-				else if (field.name == FIELD_SHA512) writer->writeAttribute(getStandardHash(currentFile, "sha512sum"));
-				else throw RelpipeWriterException(L"Unsupported field name in HashAttributeFinder: " + field.name);
-			}
-		}
-	}
-
-public:
-
-	static const string_t FIELD_MD5;
-	static const string_t FIELD_SHA1;
-	static const string_t FIELD_SHA256;
-	static const string_t FIELD_SHA512;
-
-	virtual vector<AttributeMetadata> toMetadata(const RequestedField& field) override {
-		if (field.group == RequestedField::GROUP_HASH) {
-			vector<AttributeMetadata> metadata;
-			for (string_t alias : field.getAliases()) metadata.push_back(AttributeMetadata{alias, TypeId::STRING});
-			return metadata;
-		} else {
-			return {};
-		}
-	}
-
-	virtual ~HashAttributeFinder() override {
-	}
-};
-
-const string_t HashAttributeFinder::FIELD_MD5 = L"md5";
-const string_t HashAttributeFinder::FIELD_SHA1 = L"sha1";
-const string_t HashAttributeFinder::FIELD_SHA256 = L"sha256";
-const string_t HashAttributeFinder::FIELD_SHA512 = L"sha512";
-
-}
-}
-}