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[146.158.193.36]) by smtp.gmail.com with ESMTPSA id k18sm105063653wrd.45.2021.01.05.05.10.37 for <bug-guix@HIDDEN> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Jan 2021 05:10:38 -0800 (PST) From: =?utf-8?Q?Miguel_=C3=81ngel_Arruga_Vivas?= <rosen644835@HIDDEN> To: bug-guix@HIDDEN Subject: Zip-based archives store timestamps Date: Tue, 05 Jan 2021 14:10:37 +0100 Message-ID: <877dor34xe.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=2a00:1450:4864:20::335; envelope-from=rosen644835@HIDDEN; helo=mail-wm1-x335.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.1 (-) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -2.1 (--) A procedure like reset-gzip-timestamp should be useful for reproducibility purposes, adapted to zip based archives as Smalltalk's STAR or Java's JAR binary formats, as some or all of their contents are generated usually at build time. On the latest Zip specification[1], which only seem to be encumbered regarding encryption, there is one header ID which could be used for timestamp purposes (0x0020) but third party header IDs are allowed, which include a "commonly used" 0x5455 timestamp. [1] https://pkware.cachefly.net/webdocs/APPNOTE/APPNOTE-6.3.8.TXT
Miguel Ángel Arruga Vivas <rosen644835@HIDDEN>
:bug-guix@HIDDEN
.
Full text available.bug-guix@HIDDEN
:bug#45675
; Package guix
.
Full text available.
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