relpipe/relpipe-in-filesystem.cpp: src/ExecAttributeFinder.h@6f15f18d2abf (annotated)

0 467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	1	/**
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	2	* Relational pipes
4 d44ed75822e7 modular design František Kučera <franta-hg@frantovo.cz> parents: 3 diff changeset	3	* Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
0 467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	4	*
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	5	* This program is free software: you can redistribute it and/or modify
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	6	* it under the terms of the GNU General Public License as published by
24 4353cd19a6b5 fix license version: GNU GPLv3 František Kučera <franta-hg@frantovo.cz> parents: 13 diff changeset	7	* the Free Software Foundation, version 3 of the License.
0 467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	8	*
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	9	* This program is distributed in the hope that it will be useful,
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	12	* GNU General Public License for more details.
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	13	*
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	14	* You should have received a copy of the GNU General Public License
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	15	* along with this program. If not, see <http://www.gnu.org/licenses/>.
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	16	*/
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	17	#pragma once
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	18
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	19	#include <vector>
2 f07ed604a0ab read filenames separated by a null-byte; fetch their size, owner, group… and some xattr (extended attribute); a preview version František Kučera <franta-hg@frantovo.cz> parents: 0 diff changeset	20	#include <filesystem>
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	21	#include <regex>
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	22	#include <memory>
2 f07ed604a0ab read filenames separated by a null-byte; fetch their size, owner, group… and some xattr (extended attribute); a preview version František Kučera <franta-hg@frantovo.cz> parents: 0 diff changeset	23
4 d44ed75822e7 modular design František Kučera <franta-hg@frantovo.cz> parents: 3 diff changeset	24	#include <relpipe/writer/typedefs.h>
d44ed75822e7 modular design František Kučera <franta-hg@frantovo.cz> parents: 3 diff changeset	25	#include <relpipe/writer/AttributeMetadata.h>
d44ed75822e7 modular design František Kučera <franta-hg@frantovo.cz> parents: 3 diff changeset	26	#include <relpipe/writer/RelationalWriter.h>
2 f07ed604a0ab read filenames separated by a null-byte; fetch their size, owner, group… and some xattr (extended attribute); a preview version František Kučera <franta-hg@frantovo.cz> parents: 0 diff changeset	27
4 d44ed75822e7 modular design František Kučera <franta-hg@frantovo.cz> parents: 3 diff changeset	28	#include "RequestedField.h"
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	29	#include "SubProcess.h"
27 532953173cd5 file hash: md5, sha1, sha256, sha512 František Kučera <franta-hg@frantovo.cz> parents: 24 diff changeset	30	#include "AttributeFinder.h"
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	31	#include "ExecMsg.h"
0 467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	32
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	33	namespace relpipe {
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	34	namespace in {
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	35	namespace filesystem {
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	36
2 f07ed604a0ab read filenames separated by a null-byte; fetch their size, owner, group… and some xattr (extended attribute); a preview version František Kučera <franta-hg@frantovo.cz> parents: 0 diff changeset	37	namespace fs = std::filesystem;
f07ed604a0ab read filenames separated by a null-byte; fetch their size, owner, group… and some xattr (extended attribute); a preview version František Kučera <franta-hg@frantovo.cz> parents: 0 diff changeset	38	using namespace relpipe::writer;
f07ed604a0ab read filenames separated by a null-byte; fetch their size, owner, group… and some xattr (extended attribute); a preview version František Kučera <franta-hg@frantovo.cz> parents: 0 diff changeset	39
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	40	class ExecAttributeFinder : public AttributeFinder {
4 d44ed75822e7 modular design František Kučera <franta-hg@frantovo.cz> parents: 3 diff changeset	41	private:
2 f07ed604a0ab read filenames separated by a null-byte; fetch their size, owner, group… and some xattr (extended attribute); a preview version František Kučera <franta-hg@frantovo.cz> parents: 0 diff changeset	42	std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	43	std::map<int, std::shared_ptr<SubProcess>> subProcesses;
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	44	std::map<int, std::vector<AttributeMetadata>> cachedMetadata;
28 9172bd97ae99 custom scripts for additional attributes František Kučera <franta-hg@frantovo.cz> parents: 27 diff changeset	45
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	46	string_t getExecCommand(const RequestedField& field) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	47	// TODO: move to another directory, exec, not script + use custom $PATH with no prefix
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	48	return SCRIPT_PREFIX + field.name;
28 9172bd97ae99 custom scripts for additional attributes František Kučera <franta-hg@frantovo.cz> parents: 27 diff changeset	49	}
27 532953173cd5 file hash: md5, sha1, sha256, sha512 František Kučera <franta-hg@frantovo.cz> parents: 24 diff changeset	50
9 b4f29fb16159 process also links to non-existent files and non-readable links František Kučera <franta-hg@frantovo.cz> parents: 8 diff changeset	51	protected:
b4f29fb16159 process also links to non-existent files and non-readable links František Kučera <franta-hg@frantovo.cz> parents: 8 diff changeset	52
b4f29fb16159 process also links to non-existent files and non-readable links František Kučera <franta-hg@frantovo.cz> parents: 8 diff changeset	53	virtual void writeFieldOfExistingFile(RelationalWriter* writer, const RequestedField& field) override {
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	54	// TODO: paralelize also over records → fork multiple processes and distribute records across them; then collect results (with a lock)
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	55	if (field.group == RequestedField::GROUP_EXEC) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	56
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	57	subProcesses[field.id]->write({ExecMsg::INPUT_ATTRIBUTE, L"0", convertor.from_bytes(currentFileRaw), L"false"}); // index, value, isNull
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	58	subProcesses[field.id]->write({ExecMsg::WAITING_FOR_OUTPUT_ATTRIBUTES});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	59
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	60	for (auto metadata : cachedMetadata[field.id]) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	61	SubProcess::Message m = subProcesses[field.id]->read();
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	62	if (m.code == ExecMsg::OUTPUT_ATTRIBUTE) writer->writeAttribute(m.parameters[0]);
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	63	else throw RelpipeWriterException(L"Protocol violation from exec sub-process while reading: „" + metadata.attributeName + L"“. Expected OUTPUT_ATTRIBUTE but got: " + m.toString());
27 532953173cd5 file hash: md5, sha1, sha256, sha512 František Kučera <franta-hg@frantovo.cz> parents: 24 diff changeset	64	}
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	65
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	66	SubProcess::Message m = subProcesses[field.id]->read();
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	67	if (m.code != ExecMsg::WAITING_FOR_INPUT_ATTRIBUTES) throw RelpipeWriterException(L"Protocol violation from exec sub-process. Expected WAITING_FOR_INPUT_ATTRIBUTES but got: " + m.toString());
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	68	// TODO: generic protocol violation error messages / method for checking responses
9 b4f29fb16159 process also links to non-existent files and non-readable links František Kučera <franta-hg@frantovo.cz> parents: 8 diff changeset	69	}
b4f29fb16159 process also links to non-existent files and non-readable links František Kučera <franta-hg@frantovo.cz> parents: 8 diff changeset	70	}
b4f29fb16159 process also links to non-existent files and non-readable links František Kučera <franta-hg@frantovo.cz> parents: 8 diff changeset	71
0 467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	72	public:
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	73
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	74	static const string_t SCRIPT_PREFIX;
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	75
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	76	virtual vector<AttributeMetadata> toMetadata(RelationalWriter* writer, const RequestedField& field) override {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	77	if (field.group == RequestedField::GROUP_EXEC) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	78
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	79	if (cachedMetadata.count(field.id)) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	80	return cachedMetadata[field.id];
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	81	} else {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	82
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	83	std::vector<string_t> commandLine = {getExecCommand(field)};
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	84	std::map<string_t, string_t> environment;
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	85
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	86	for (auto mn : ExecMsg::getMessageNames()) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	87	environment[L"EXEC_MSG_" + mn.second] = std::to_wstring(mn.first);
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	88	environment[L"EXEC_MSG_" + std::to_wstring(mn.first)] = mn.second;
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	89	}
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	90
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	91	shared_ptr<SubProcess> subProcess(SubProcess::create(commandLine, environment, false));
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	92	subProcesses[field.id] = subProcess;
27 532953173cd5 file hash: md5, sha1, sha256, sha512 František Kučera <franta-hg@frantovo.cz> parents: 24 diff changeset	93
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	94	string_t version = L"1";
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	95	subProcess->write({ExecMsg::VERSION_SUPPORTED, version});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	96	subProcess->write({ExecMsg::WAITING_FOR_VERSION});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	97	SubProcess::Message versionMessage = subProcess->read();
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	98	if (versionMessage.code == ExecMsg::VERSION_ACCEPTED && versionMessage.parameters[0] == version) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	99	subProcess->write({ExecMsg::RELATION_START});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	100	subProcess->write({ExecMsg::INPUT_ATTRIBUTE_METADATA, L"path", L"string"});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	101	for (string_t alias : field.getAliases()) subProcess->write({ExecMsg::OUTPUT_ATTRIBUTE_ALIAS, alias});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	102	for (int i = 0; i < field.options.size();) subProcess->write({ExecMsg::OPTION, field.options[i++], field.options[i++]});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	103	subProcess->write({ExecMsg::WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	104
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	105	vector<AttributeMetadata> metadata;
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	106	while (true) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	107	SubProcess::Message m = subProcess->read();
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	108	if (m.code == ExecMsg::OUTPUT_ATTRIBUTE_METADATA) metadata.push_back({m.parameters[0], writer->toTypeId(m.parameters[1])});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	109	else if (m.code == ExecMsg::WAITING_FOR_INPUT_ATTRIBUTES) break;
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	110	}
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	111
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	112	cachedMetadata[field.id] = metadata;
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	113	return metadata;
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	114	} else {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	115	throw RelpipeWriterException(L"Incompatible exec sub-process version or message: " + versionMessage.toString());
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	116	}
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	117	}
5 ec661baf433a support field aliases František Kučera <franta-hg@frantovo.cz> parents: 4 diff changeset	118	} else {
ec661baf433a support field aliases František Kučera <franta-hg@frantovo.cz> parents: 4 diff changeset	119	return {};
ec661baf433a support field aliases František Kučera <franta-hg@frantovo.cz> parents: 4 diff changeset	120	}
4 d44ed75822e7 modular design František Kučera <franta-hg@frantovo.cz> parents: 3 diff changeset	121	}
2 f07ed604a0ab read filenames separated by a null-byte; fetch their size, owner, group… and some xattr (extended attribute); a preview version František Kučera <franta-hg@frantovo.cz> parents: 0 diff changeset	122
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	123	virtual ~ExecAttributeFinder() override {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	124	for (auto s : subProcesses) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	125	try {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	126	s.second->write({ExecMsg::RELATION_END});
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	127	s.second->wait();
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	128	} catch (...) {
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	129	std::wcerr << L"Exception caught during closing sub-process #" + std::to_wstring(s.first) + L" and waiting for its end." << std::endl;
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	130	}
6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	131	}
0 467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	132	}
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	133	};
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	134
29 6f15f18d2abf field group --exec, replaces --script and --hash, starts reusable sub-program that returns set of attributes for all records during its runtime František Kučera <franta-hg@frantovo.cz> parents: 28 diff changeset	135	const relpipe::writer::string_t ExecAttributeFinder::SCRIPT_PREFIX = L"__relpipe_in_filesystem_script_";
27 532953173cd5 file hash: md5, sha1, sha256, sha512 František Kučera <franta-hg@frantovo.cz> parents: 24 diff changeset	136
0 467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	137	}
467d09b62a12 project skeleton František Kučera <franta-hg@frantovo.cz> parents: diff changeset	138	}
27 532953173cd5 file hash: md5, sha1, sha256, sha512 František Kučera <franta-hg@frantovo.cz> parents: 24 diff changeset	139	}

author	František Kučera <franta-hg@frantovo.cz>
	Sat, 11 Jan 2020 00:56:51 +0100
branch	v_0
changeset 29	6f15f18d2abf
parent 28	src/ScriptAttributeFinder.h@9172bd97ae99
permissions	-rw-r--r--