{"id":182325,"date":"2026-06-25T20:48:38","date_gmt":"2026-06-25T18:48:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/proekt-rars-podgotovil-svobodnuyu-realizacziyu-rar-s-podderzhkoj-sozdaniya-arhivov"},"modified":"2026-06-25T20:48:38","modified_gmt":"2026-06-25T18:48:38","slug":"proekt-rars-podgotovil-svobodnuyu-realizacziyu-rar-s-podderzhkoj-sozdaniya-arhivov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/proekt-rars-podgotovil-svobodnuyu-realizacziyu-rar-s-podderzhkoj-sozdaniya-arhivov","title":{"rendered":"Projekt rars p\u0159ipravil svobodnou implementaci RAR s podporou vytv\u00e1\u0159en\u00ed archiv\u016f","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Byl p\u0159edstaven projekt rars, kter\u00fd vyv\u00edj\u00ed svobodnou implementaci n\u00e1stroj\u016f pro form\u00e1t RAR, napsanou v jazyce Rust a podporuj\u00edc\u00ed nejen rozbalov\u00e1n\u00ed, ale i vytv\u00e1\u0159en\u00ed RAR-archiv\u016f. N\u00e1stroje podporuj\u00ed jak star\u0161\u00ed form\u00e1ty RAR 1.3\/1.4 se signaturou «RE~^», tak i posledn\u00ed verzi RAR 7. K dispozici jsou tak\u00e9 pokro\u010dil\u00e9 operace, jako je rozd\u011blen\u00ed na objemy, ochrana heslem, \u0161ifrov\u00e1n\u00ed hlavi\u010dek, p\u0159ipojov\u00e1n\u00ed koment\u00e1\u0159\u016f, RARVM filtry, indexy pro rychl\u00e9 otev\u00edr\u00e1n\u00ed a mechanismy obnovy po\u0161kozen\u00fdch dat. K\u00f3d se \u0161\u00ed\u0159\u00ed pod licencemi MIT a Apache-2.0. Na z\u00e1klad\u011b knihovny PyO3 byly p\u0159ipraveny obaly pro jazyk Python, kter\u00e9 implementuj\u00ed API ve stylu rarfile pro prohl\u00ed\u017een\u00ed, testov\u00e1n\u00ed a extrakci archiv\u016f, a tak\u00e9 API ve stylu RarBuilder pro vytv\u00e1\u0159en\u00ed nebo znovupackov\u00e1n\u00ed archiv\u016f.<\/p>\n

Speci\u00e1lnost\u00ed projektu je, \u017ee realizuje pr\u00e1ci s form\u00e1tem RAR bez pou\u017eit\u00ed k\u00f3du n\u00e1stroje unrar, kter\u00fd je distribuov\u00e1n pod neregulovanou licenc\u00ed zakazuj\u00edc\u00ed pou\u017eit\u00ed k\u00f3du unrar pro rekonstrukci algoritmu komprese RAR nebo v\u00fdvoj RAR-kompatibiln\u00edho archiva\u010dn\u00edho n\u00e1stroje. V d\u016fsledku tohoto omezen\u00ed se v\u011bt\u0161ina svobodn\u00fdch archiva\u010dn\u00edch n\u00e1stroj\u016f omezila pouze na funkce rozbalov\u00e1n\u00ed RAR soubor\u016f, a pro vytv\u00e1\u0159en\u00ed RAR archiv\u016f bylo nutn\u00e9 pou\u017e\u00edvat propriet\u00e1rn\u00ed n\u00e1stroje od RARLAB.<\/p>\n

Byl vytvo\u0159en samostatn\u00fd repozit\u00e1\u0159 rar-research, ve kter\u00e9m jsou zve\u0159ejn\u011bny specifikace pro form\u00e1ty RAR 1.3\/1.4, RAR 1.5-4.x a RAR 5.0\/7.0, stejn\u011b jako pozn\u00e1mky k pou\u017e\u00edvan\u00fdm algoritm\u016fm, filtr\u016fm, metod\u00e1m kontroly a obnovy integrity, \u0161ifrov\u00e1n\u00ed, d\u011blen\u00ed na objemy a mechanizm\u016fm ochrany. Vzhledem k tomu, \u017ee v dob\u011b vzniku projektu rars neexistovala ofici\u00e1ln\u00ed pln\u00e1 specifikace, byla dokumentace rekonstruov\u00e1na na z\u00e1klad\u011b k\u00f3du rozbalova\u010d\u016f, star\u00fdch implementac\u00ed, testovac\u00edch archiv\u016f a anal\u00fdzy bin\u00e1rn\u00edch verz\u00ed RAR pro DOS a Windows.<\/p>\n

Implementace byla vytvo\u0159ena pomoc\u00ed AI n\u00e1stroj\u016f OpenAI Codex 5.5 a Claude Opus 4.7 ve voln\u00e9m \u010dase asi za p\u011bt t\u00fddn\u016f. V prvn\u00ed f\u00e1zi byly modely pou\u017eity k systematizaci informac\u00ed o form\u00e1tu a dopln\u011bn\u00ed mezer v popisu, pot\u00e9 byl podle rekonstruovan\u00e9 specifikace vygenerov\u00e1n k\u00f3d v jazyce Rust. Pro up\u0159esn\u011bn\u00ed specifikace a zdokonalen\u00ed implementace bylo pou\u017eito testov\u00e1n\u00ed s re\u00e1ln\u00fdmi archivy a porovn\u00e1n\u00ed s referen\u010dn\u00edmi implementacemi.<\/p>\n

Bylo zaznamen\u00e1no, \u017ee AI n\u00e1stroje si dob\u0159e poradili s p\u0159evodem form\u00e1ln\u00edho popisu do k\u00f3du a s rutinn\u00edm prov\u00e1d\u011bn\u00edm velk\u00e9ho objemu funkc\u00ed, ale nedok\u00e1zali zajistit architektonickou kontrolu. Bez p\u0159\u00edsn\u00e9ho dohledu m\u011bly AI modely tendenci obch\u00e1zet testy, komplikovat k\u00f3d a p\u0159ehl\u00ed\u017eet zjevn\u00e9 probl\u00e9my ovliv\u0148uj\u00edc\u00ed u\u017eivatelskou p\u0159\u00edv\u011btivost. Podle autora se v projektu takov\u00e9ho rozsahu testy, dokumentace a koment\u00e1\u0159e staly nejen n\u00e1stroji pro ov\u011b\u0159ov\u00e1n\u00ed, ale tak\u00e9 zp\u016fsobem, jak nasm\u011brovat generaci k\u00f3du spr\u00e1vn\u00fdm sm\u011brem.<\/p>\n

K urychlen\u00ed v\u00fdvoje do\u0161lo po vzniku re\u017eimu «\\\/goal» v OpenAI Codex, kter\u00fd umo\u017e\u0148uje AI agentovi pracovat dlouhodob\u011b na jednom \u00fakolu, zhu\u0161\u0165ovat kontext a pokra\u010dovat v pln\u011bn\u00ed po jeho p\u0159epln\u011bn\u00ed. V tomto re\u017eimu Codex n\u011bkolikr\u00e1t pracoval d\u00e9le ne\u017e 6 hodin a jednou p\u0159ibli\u017en\u011b 16 hodin, p\u0159i\u010dem\u017e realizoval zna\u010dnou \u010d\u00e1st zb\u00fdvaj\u00edc\u00ed funk\u010dnosti, jako je obnova dat, \u0161ifrov\u00e1n\u00ed a v\u00edcetomov\u00e9 archivy. S ohledem na zna\u010dnou dotaci na tokeny bylo utraceno 40 britsk\u00fdch liber.<\/p>\n

Pokud jde o \u00farove\u0148 komprese, rars pr\u016fm\u011brn\u011b zaost\u00e1v\u00e1 o 5-10 % za WinRAR. Z hlediska rychlosti komprese a rozbalov\u00e1n\u00ed je rars v\u00fdrazn\u011b pomalej\u0161\u00ed ne\u017e WinRAR kv\u016fli nedostatku plnohodnotn\u00fdch optimalizac\u00ed. P\u0159esto projekt ji\u017e nab\u00edz\u00ed re\u017eim «—features fast», kter\u00fd aplikuje optimalizace na z\u00e1klad\u011b instrukc\u00ed SIMD pro urychlen\u00ed komprese a rozbalov\u00e1n\u00ed, ale je v\u00e1z\u00e1n na experiment\u00e1ln\u00ed API std::simd, kter\u00e9 je k dispozici pouze v testovac\u00edch sestaven\u00edch n\u00e1stroje Rust. Tak\u00e9 byl implementov\u00e1n re\u017eim «—features parallel», kter\u00fd vyu\u017e\u00edv\u00e1 knihovnu Rayon pro paralelizaci komprese jednotliv\u00fdch soubor\u016f.<\/p>\n

Evgeny Roshal, tv\u016frce RAR, okomentoval pou\u017eit\u00ed reverzn\u00edho in\u017een\u00fdrstv\u00ed star\u00fdch bin\u00e1rn\u00edch soubor\u016f RAR p\u0159i v\u00fdvoji rars, co\u017e je zak\u00e1z\u00e1no licen\u010dn\u00ed smlouvou. Podle Evgenyho se zat\u00edm nerozhodl, co s t\u00edm ud\u011blat, a pl\u00e1nuje po\u010dkat na n\u00e1zor spole\u010dnosti win.rar GmbH.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u043f\u0440\u043e\u0435\u043a\u0442 rars, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f \u0434\u043b\u044f \u0444\u043e\u0440\u043c\u0430\u0442\u0430 RAR, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u0443\u044e \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust \u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0443\u044e \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0440\u0430\u0441\u043f\u0430\u043a\u043e\u0432\u043a\u0443, \u043d\u043e \u0438 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435 RAR-\u0430\u0440\u0445\u0438\u0432\u043e\u0432. \u0418\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u043a\u0430\u043a \u0440\u0430\u043d\u043d\u0438\u0435 \u0444\u043e\u0440\u043c\u0430\u0442\u044b RAR 1.3\/1.4 \u0441 \u0441\u0438\u0433\u043d\u0430\u0442\u0443\u0440\u043e\u0439 «RE~^», \u0442\u0430\u043a \u0438 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u044e\u044e \u0432\u0435\u0440\u0441\u0438\u044e RAR 7. \u0414\u043e\u0441\u0442\u0443\u043f\u043d\u044b \u0442\u0430\u043a\u0438\u0435 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u043d\u044b\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438, \u043a\u0430\u043a \u0440\u0430\u0437\u0431\u0438\u0435\u043d\u0438\u0435 \u043d\u0430 \u0442\u043e\u043c\u0430, \u0437\u0430\u0449\u0438\u0442\u0430 \u043f\u0430\u0440\u043e\u043b\u0435\u043c, \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0437\u0430\u0433\u043e\u043b\u043e\u0432\u043a\u043e\u0432, \u043f\u0440\u0438\u043a\u0440\u0435\u043f\u043b\u0435\u043d\u0438\u0435 \u043a\u043e\u043c\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0435\u0432, RARVM-\u0444\u0438\u043b\u044c\u0442\u0440\u044b, \u0438\u043d\u0434\u0435\u043a\u0441\u044b […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182325","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Projekt rars p\u0159ipravil svobodnou implementaci RAR s podporou pro vytv\u00e1\u0159en\u00ed archiv\u016f | ProHoster","description":"Byl p\u0159edstaven projekt rars, kter\u00fd vyv\u00edj\u00ed svobodnou implementaci n\u00e1stroje pro form\u00e1t RAR 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