GitHub a modificat metoda de generare a arhivelor automatizate «.tar.gz» \u0219i «.tgz» pe paginile cu versiuni, ceea ce a dus la schimbarea sumelor de control \u0219i la erori masive \u00een sistemele automate de compilare, care verific\u0103 integritatea arhivelor desc\u0103rcate de pe GitHub prin compararea lor cu sumele de control salvate anterior, de exemplu, \u00een metadatele pachetelor sau \u00een scripturile de compilare. <\/p>\n
\u00cencep\u00e2nd cu versiunea 2.38, instrumentele Git au inclus implicit o implementare \u00eencorporat\u0103 a gzip, care a permis unificarea suportului pentru aceast\u0103 metod\u0103 de compresie \u00een diferite sisteme de operare \u0219i a \u00eembun\u0103t\u0103\u021bit performan\u021ba gener\u0103rii arhivelor. GitHub a adoptat schimbarea dup\u0103 actualizarea versiunii git \u00een infrastructura sa. Problema a fost c\u0103 arhivele compressate generate de implementarea \u00eencorporat\u0103 gzip bazat\u0103 pe zlib difer\u0103 binar de arhivele create de utilitarul gzip, ceea ce a dus la diferen\u021be \u00een sumele de control pentru arhivele create de diferite versiuni git atunci c\u00e2nd se execut\u0103 comanda «git archive». <\/p>\n
Astfel, dup\u0103 actualizarea git \u00een GitHub, pe paginile lans\u0103rilor au fost livrate arhive pu\u021bin diferite, neacceptate de vechile sume de control. Problema s-a manifestat \u00een diferite sisteme de construire, \u00een sistemele de integrare continu\u0103 \u0219i \u00een instrumentele de construire a pachetelor din surse. De exemplu, construc\u021bia a aproximativ 5800 de porturi FreeBSD a fost afectat\u0103, iar codurile surs\u0103 pentru acestea au fost desc\u0103rcate de pe GitHub. <\/p>\n
\u00cen r\u0103spuns la primele pl\u00e2ngeri referitoare la e\u0219ecurile ap\u0103rute, reprezentan\u021bii GitHub au declarat ini\u021bial c\u0103 sumele de control constante pentru arhive nu au fost niciodat\u0103 garantate. Dup\u0103 ce s-a demonstrat c\u0103 pentru restabilirea func\u021bion\u0103rii sistemelor de construire afectate de modificare este necesar\u0103 o munc\u0103 colosal\u0103 de actualizare a metadatelor \u00een diferite ecosisteme, reprezentan\u021bii GitHub \u0219i-au schimbat opinia, anul\u00e2nd modificarea \u0219i readuc\u00e2nd vechea metod\u0103 de generare a arhivelor. <\/p>\n
Dezvoltatorii Git nu au ajuns \u00eenc\u0103 la o solu\u021bie \u0219i discut\u0103 doar despre posibile ac\u021biuni. Au fost luate \u00een considerare op\u021biuni precum revenirea la utilizarea utilitarului gzip ca implicit; ad\u0103ugarea unui flag «—stable» pentru a men\u021bine compatibilitatea cu arhivele mai vechi; legarea implement\u0103rii \u00eencorporate la un format de arhiv\u0103 distinct; utilizarea utilitarului gzip pentru comit\u0103rile vechi \u0219i a implement\u0103rii \u00eencorporate pentru comit\u0103rile \u00eencep\u00e2nd dintr-o anumit\u0103 dat\u0103; garantarea stabilit\u0103\u021bii formatului doar pentru arhivele necomprimate. <\/p>\n
Dificultatea lu\u0103rii unei decizii este explicat\u0103 prin faptul c\u0103 revenirea la apelarea utilitarului extern nu rezolv\u0103 complet problema invariabilit\u0103\u021bii sumelor de control, deoarece modific\u0103rile \u00een programul extern gzip pot duce, de asemenea, la schimbarea formatului arhivei. \u00cen prezent, un set de patch-uri este propus pentru revizuire, care restabile\u0219te comportamentul vechi implicit (apelarea utilitarului extern gzip) \u0219i folose\u0219te implementarea \u00eencorporat\u0103 \u00een absen\u021ba utilitarului gzip \u00een sistem. Patch-urile adaug\u0103, de asemenea, \u00een documenta\u021bie men\u021biunea c\u0103 stabilitatea ie\u0219irii «git archive» nu este garantat\u0103 \u0219i formatul poate fi modificat \u00een viitor. GitHub \u0438\u0437\u043c\u0435\u043d\u0438\u043b \u043c\u0435\u0442\u043e\u0434 \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u0430\u0440\u0445\u0438\u0432\u043e\u0432 «.tar.gz» \u0438 «.tgz» \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430\u0445 \u0441 \u0440\u0435\u043b\u0438\u0437\u0430\u043c\u0438, \u0447\u0442\u043e \u043f\u0440\u0438\u0432\u0435\u043b\u043e \u043a \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044e \u0438\u0445 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c\u043d\u044b\u0445 \u0441\u0443\u043c\u043c \u0438 \u043c\u0430\u0441\u0441\u043e\u0432\u044b\u043c \u0441\u0431\u043e\u044f\u043c \u0432 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 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Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"