{"id":106631,"date":"2023-02-03T18:48:10","date_gmt":"2023-02-03T16:48:10","guid":{"rendered":"https:\/\/prohoster.info\/?p=106631"},"modified":"2023-02-03T21:50:32","modified_gmt":"2023-02-03T19:50:32","slug":"sboi-v-sistemah-sborki-iz-za-izmeneniya-kontrolnyh-summ-arhivov-v-github","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/sboi-v-sistemah-sborki-iz-za-izmeneniya-kontrolnyh-summ-arhivov-v-github","title":{"rendered":"Fejl i bygge-systemer p\u00e5 grund af \u00e6ndring af kontrolsummer for arkiver i GitHub","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>GitHub har \u00e6ndret metoden til at generere automatisk genererede arkiver &#171;.tar.gz&#187; og &#171;.tgz&#187; p\u00e5 releasesiderne, hvilket har f\u00f8rt til \u00e6ndringer i deres kontrolsummer og omfattende nedbrud i automatiserede build-systemer, der for at bekr\u00e6fte integriteten sammenligner de downloadede arkiver fra GitHub med tidligere gemte kontrolsummer, f.eks. gemt i pakkernes metadata eller i build-scripts.     <\/p>\n<p>Fra version 2.38 af Git blev en indbygget gzip-implementering inkluderet som standard, hvilket gjorde det muligt at ensarte underst\u00f8ttelsen af denne komprimeringsmetode p\u00e5 forskellige operativsystemer og forbedre ydelsen for arkiveringsprocessen. GitHub tog \u00e6ndringen i brug efter opdateringen af git-versionen i deres infrastruktur. Problemet opstod, fordi de komprimerede arkiver, der blev genereret af den indbyggede gzip-implementering baseret p\u00e5 zlib, er bin\u00e6rt forskellige fra arkiverne oprettet af gzip-v\u00e6rkt\u00f8jet, hvilket f\u00f8rte til forskellige kontrolsummer for arkiverne oprettet med forskellige versioner af git ved udf\u00f8relse af kommandoen &#171;git archive&#187;.        <\/p>\n<p>Som f\u00f8lge heraf blev der efter opdateringen af git p\u00e5 GitHub sendt lidt andre arkiver fra releasesiderne, som ikke bestod kontrollen med de gamle kontrolsummationer. Problemet viste sig i forskellige byggeprocesser, systemer til kontinuerlig integration og i v\u00e6rkt\u00f8jer til bygning af pakker fra kildekoder. For eksempel blev opbygningen af cirka 5800 FreeBSD-ports forstyrret, hvis kildekoder blev downloadet fra GitHub.     <\/p>\n<p>Som svar p\u00e5 de f\u00f8rste klager over de opst\u00e5ede fejl henviste repr\u00e6sentanter fra GitHub i starten til, at permanente kontrolsummationer for arkiver aldrig var blevet garanteret. Efter at det blev vist, at det ville kr\u00e6ve en enorm indsats at opdatere metadata i forskellige \u00f8kosystemer for at genoprette operabiliteten af de ber\u00f8rte byggeprocesser, \u00e6ndrede repr\u00e6sentanterne fra GitHub mening, annullerede \u00e6ndringen og genoptog den gamle metode til at generere arkiver.      <\/p>\n<p>Git-udviklerne har endnu ikke n\u00e5et en l\u00f8sning og diskuterer blot mulige handlinger. Der blev overvejet muligheder som at g\u00e5 tilbage til at bruge gzip-v\u00e6rkt\u00f8jet som standard; tilf\u00f8je flaget &#171;&#8212;stable&#187; for at bevare kompatibilitet med gamle arkiver; binde den indbyggede implementering til et separat arkivformat; bruge gzip-v\u00e6rkt\u00f8jet til gamle commits og den indbyggede implementering til commits fra en bestemt dato; sikre stabilitet for formatet kun for ukomprimerede arkiver.     <\/p>\n<p>Besv\u00e6ret med at tr\u00e6ffe en beslutning forklares ved, at en tilbagevenden til at kalde et eksternt v\u00e6rkt\u00f8j ikke l\u00f8ser problemet med uforanderligheden af kontrolsummerne, da \u00e6ndringer i det eksterne program gzip ogs\u00e5 kan f\u00f8re til \u00e6ndringer i arkivformatet. I \u00f8jeblikket er der foresl\u00e5et et s\u00e6t patches til anmeldelse, som genindf\u00f8rer den gamle adf\u00e6rd som standard (kald til det eksterne gzip-v\u00e6rkt\u00f8j) og bruger den indbyggede implementering, n\u00e5r gzip-v\u00e6rkt\u00f8jet ikke findes i systemet. Patches tilf\u00f8jer ogs\u00e5 en bem\u00e6rkning i dokumentationen om, at stabiliteten af output fra &#171;git archive&#187; ikke er garanteret, og at formatet kan \u00e6ndres i fremtiden.<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58595\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>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 &#171;.tar.gz&#187; \u0438 &#171;.tgz&#187; \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 \u0441\u0431\u043e\u0440\u043a\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0434\u043b\u044f \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u044f \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u0438 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u044e\u0442 \u0441\u0432\u0435\u0440\u043a\u0443 \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u0435\u043c\u044b\u0445 \u0441 GitHub \u0430\u0440\u0445\u0438\u0432\u043e\u0432 \u0441 \u0440\u0430\u043d\u0435\u0435 \u0441\u043e\u0445\u0440\u0430\u043d\u0451\u043d\u043d\u044b\u043c\u0438 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c\u043d\u044b\u043c\u0438 \u0441\u0443\u043c\u043c\u0430\u043c\u0438, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0440\u0430\u0437\u043c\u0435\u0449\u0451\u043d\u043d\u044b\u043c\u0438 \u0432 \u043c\u0435\u0442\u0430\u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0438\u043b\u0438 \u0432 \u0441\u0431\u043e\u0440\u043e\u0447\u043d\u044b\u0445 \u0441\u0446\u0435\u043d\u0430\u0440\u0438\u044f\u0445. \u041d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-106631","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"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 &quot;.tar.gz&quot; 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