diff --git a/talks-public/2020-10-29-JAIIO/2020-10-29-JAIIO.org b/talks-public/2020-10-29-JAIIO/2020-10-29-JAIIO.org index 800a88d..1f3d3d1 100644 --- a/talks-public/2020-10-29-JAIIO/2020-10-29-JAIIO.org +++ b/talks-public/2020-10-29-JAIIO/2020-10-29-JAIIO.org @@ -1,420 +1,440 @@ #+COLUMNS: %40ITEM %10BEAMER_env(Env) %9BEAMER_envargs(Env Args) %10BEAMER_act(Act) %4BEAMER_col(Col) %10BEAMER_extra(Extra) %8BEAMER_opt(Opt) #+TITLE: Software Heritage: why and how we preserve our Software Commons # #+AUTHOR: Roberto Di Cosmo # #+EMAIL: roberto@dicosmo.org @rdicosmo @swheritage #+BEAMER_HEADER: \date[29/10/2020]{29/10/2020, \emph{49 JAIIO}} -#+BEAMER_HEADER: \title[(CC-BY 4.0) Preserving the Software Commons]{Software Heritage: why and how we preserve our Software Commons} -#+BEAMER_HEADER: \author[Roberto Di Cosmo]{Roberto Di Cosmo\\Inria and Universit\'e de Paris} +#+BEAMER_HEADER: \title[(CC-BY 4.0) Preserving the Software Commons]{Software Heritage: why and how we preserve\\ our Software Commons} +#+BEAMER_HEADER: \author[Roberto Di Cosmo]{Roberto Di Cosmo\\Director, Software Heritage\\Inria and Universit\'e de Paris} # #+BEAMER_HEADER: \setbeameroption{show notes on second screen} #+BEAMER_HEADER: \setbeameroption{hide notes} #+KEYWORDS: software heritage legacy preservation knowledge mankind technology #+LATEX_HEADER: \usepackage{tcolorbox} #+LATEX_HEADER: \definecolor{links}{HTML}{2A1B81} #+LATEX_HEADER: \hypersetup{colorlinks,linkcolor=,urlcolor=links} # # prelude.org contains all the information needed to export the main beamer latex source # use prelude-toc.org to get the table of contents # #+INCLUDE: "../../common/modules/prelude-toc.org" :minlevel 1 #+INCLUDE: "../../common/modules/169.org" # +LaTeX_CLASS_OPTIONS: [aspectratio=169,handout,xcolor=table] #+LATEX_HEADER: \usepackage{bbding} #+LATEX_HEADER: \DeclareUnicodeCharacter{66D}{\FiveStar} # # If you want to change the title logo it's here # # +BEAMER_HEADER: \titlegraphic{\includegraphics[width=0.7\textwidth]{SWH-logo}} # aspect ratio can be changed, but the slides need to be adapted # - compute a "resizing factor" for the images (macro for picblocks?) # # set the background image # # https://pacoup.com/2011/06/12/list-of-true-169-resolutions/ # #+BEAMER_HEADER: \pgfdeclareimage[height=90mm,width=160mm]{bgd}{swh-world-169.png} #+BEAMER_HEADER: \setbeamertemplate{background}{\pgfuseimage{bgd}} #+LATEX: \addtocounter{framenumber}{-1} -* Software Source Code: precious part of our Knowledge +* Introduction +** Short Bio: Roberto Di Cosmo + # +BEAMER: \raisebox{-.5\height}{\includegraphics[width=.28\linewidth]{rdc}} + Computer Science professor in Paris, now working at INRIA\\ + - /30 years/ of research (Theor. CS, Programming, Software Engineering, Erdos #: 3)\\ + - /20 years/ of Free and Open Source Software\\ + - /10 years/ building and directing structures for the common good\\ + + \mbox{}\\ + \begin{minipage}[c]{0.18\linewidth} + \includegraphics[width=1.0\linewidth]{rdc} + \end{minipage} + \begin{minipage}[c]{0.8\linewidth} + \begin{description} +% \item[1998] \emph{Cybersnare} -- voice of French FOSS + \item[1999] \emph{DemoLinux} -- first live GNU/Linux distro +% \item[2004] \emph{EDOS} -- check package dependencies + \item[2007] \emph{Free Software Thematic Group}\\ + %\tiny{\url{http://www.systematic-paris-region.org/fr/logiciel-libre}}\\ + ~150 members ~40 projects ~200Me +% \item[2008] \emph{Mancoosi project} \url{www.mancoosi.org} +% \item[2010] \emph{IRILL} \url{www.irill.org} + \item[2015] \emph{Software Heritage} at INRIA + \item[2018] \emph{National Committee for Open Science}, France + \end{description} + \end{minipage} + ** Software source code: a precious part of our heritage #+INCLUDE: "../../common/modules/source-code-different-short.org::#softwareisdifferent" :only-contents t :minlevel 3 ** Software Commons, Open Science - #+INCLUDE: "../../common/modules/foss-commons.org::#commonsdef" :only-contents t +# Deep knowledge embodied in complex software systems +*** Yuval Noah Harari (on COVID 19) + \hfill /“The real antidote [to epidemic] is/ scientific knowledge /and/ global cooperation.” +#+BEAMER: \pause +*** Definition (Software Commons) + :PROPERTIES: + :CUSTOM_ID: commonsdef2 + :END: + The *software commons* consists of all computer software which is available + at little or no cost and which can be altered and reused with few + restrictions. Thus /all open source software and all free software are part + of the [software] commons/. [...] + #+BEAMER: {\tiny\url{https://en.wikipedia.org/wiki/Software_Commons}} #+BEAMER: \pause *** *Source code*: part of our commons\hfill ... pillar of Open Science! /(would require another talk)/ #+BEAMER: \pause *** Precious, endangered /executable/ and /human readable/ knowledge - key people *passing away*, platforms (GoogleCode, Gitorious, etc.) closing down ...\\ + \hfill key people *passing away*, platforms (GoogleCode, Gitorious, etc.) closing down ... * Meet Software Heritage ** Software Heritage in a nutshell \hfill www.softwareheritage.org #+BEAMER: \transdissolve #+INCLUDE: "../../common/modules/swh-goals-oneslide-vertical.org::#goals" :only-contents t :minlevel 3 ** Largest software archive, principled \hfill \url{http://bit.ly/swhpaper} #+latex: \begin{center} #+ATTR_LATEX: :width 0.5\linewidth file:SWH-as-foundation-slim.png #+latex: \end{center} #+BEAMER: \pause #+latex: \centering #+ATTR_LATEX: :width \extblockscale{.6\linewidth} file:2020-09-08-growth.png #+BEAMER: \pause *** Technology :PROPERTIES: :BEAMER_col: 0.34 :BEAMER_env: block :END: - transparency and FOSS - replicas all the way down *** Content (billions!) :PROPERTIES: :BEAMER_col: 0.32 :BEAMER_env: block :END: - *intrinsic identifiers* - facts and provenance *** Organization :PROPERTIES: :BEAMER_col: 0.33 :BEAMER_env: block :END: - non-profit - multi-stakeholder ** An international, non profit initiative... :PROPERTIES: :CUSTOM_ID: support :END: *** Sharing the vision :B_block: :PROPERTIES: :CUSTOM_ID: endorsement :BEAMER_COL: .5 :BEAMER_env: block :END: #+LATEX: \begin{center}{\includegraphics[width=\extblockscale{.4\linewidth}]{unesco_logo_en_285}}\end{center} #+LATEX: \vspace{-0.8cm} #+LATEX: \begin{center}\vskip 1em \includegraphics[width=\extblockscale{1.4\linewidth}]{support.pdf}\end{center} #+latex: \small And many more ...\\ #+latex:\mbox{}~~~~~~~\tiny\url{www.softwareheritage.org/support/testimonials} #+BEAMER: \pause *** Donors, members, sponsors :B_block: :PROPERTIES: :CUSTOM_ID: sponsors :BEAMER_COL: .5 :BEAMER_env: block :END: #+LATEX: \begin{center}\includegraphics[width=\extblockscale{.4\linewidth}]{inria-logo-new}\end{center} #+LATEX: \begin{center} # #+LATEX: \includegraphics[width=\extblockscale{.2\linewidth}]{sponsors-levels.pdf} #+LATEX: \colorbox{white}{\includegraphics[width=\extblockscale{1.4\linewidth}]{sponsors.pdf}} #+LATEX: \end{center} # - sponsoring / partnership :: \hfill \url{sponsorship.softwareheritage.org} *** :B_ignoreheading: :PROPERTIES: :BEAMER_env: ignoreheading :END: *** Research collaboration :B_picblock:noexport: :PROPERTIES: :BEAMER_COL: .5 :BEAMER_env: picblock :BEAMER_OPT: pic=Qwant_Logo, leftpic=true :END: source code search engine *** See more :noexport: \hfill\tiny\url{http:://www.softwareheritage.org/support/testimonials} *** Global network :B_picblock:noexport: :PROPERTIES: :BEAMER_COL: .5 :BEAMER_env: picblock :BEAMER_OPT: pic=fossid, leftpic=true, width=.3\linewidth :END: - first *independent mirror* - increased reliability ** A peek under the hood #+BEAMER: \begin{center} #+BEAMER: \mode{\only<1>{\includegraphics[width=\extblockscale{1\textwidth}]{swh-dataflow-merkle-listers.pdf}}} #+BEAMER: \only<2-3>{\includegraphics[width=\extblockscale{1\textwidth}]{swh-dataflow-merkle.pdf}} #+BEAMER: \end{center} #+BEAMER: \pause #+BEAMER: \pause /Global development history/ permanently archived in a /unique/ git-like Merkle DAG - *~400 TB* (uncompressed) blobs, *~20 B* nodes, *~280 B* edges # - *GitHub*, Gitlab.com, Bitbucket, /Gitorious/, /GoogleCode/, GNU, PyPi, Debian, NPM... ** Software Heritage Identifiers (SWHID) \hfill [[https://docs.softwareheritage.org/devel/swh-model/persistent-identifiers.html][link to full docs]] -# #+INCLUDE: "../../common/modules/swh-id-syntax.org::#swh-id-syntax" :only-contents t :minlevel 3 - #+LATEX: \centering%\forcebeamerstart - #+LATEX: \mode{\only<1>{\includegraphics[width=\linewidth]{SWHID-v1.4_1.png}}} - #+LATEX: \mode{\only<2>{\includegraphics[width=\linewidth]{SWHID-v1.4_2.png}}} - #+LATEX: \only<3->{\includegraphics[width=\linewidth]{SWHID-v1.4_3.png}} - #+LATEX: %\forcebeamerend -*** An emerging standard :B_block: - :PROPERTIES: - :BEAMER_act: <4-> - :BEAMER_COL: .6 - :BEAMER_env: block - :END: - - in Linux Foundation's [[https://spdx.github.io/spdx-spec/appendix-VI-external-repository-identifiers/#persistent-id][SPDX 2.2]] - - IANA registered, WikiData property [[https://www.wikidata.org/wiki/Property:P6138][P6138]] -*** Examples: :B_block: - :PROPERTIES: - :BEAMER_act: <5-> - :BEAMER_COL: .4 - :BEAMER_env: block - :END: - - [[https://archive.softwareheritage.org/swh:1:cnt:64582b78792cd6c2d67d35da5a11bb80886a6409;origin=https://github.com/virtualagc/virtualagc;lines=245-261/][Apollo 11 AGC excerpt]], - - [[https://archive.softwareheritage.org/swh:1:cnt:bb0faf6919fc60636b2696f32ec9b3c2adb247fe;origin=https://github.com/id-Software/Quake-III-Arena;lines=549-572/][Quake III rsqrt]] - + #+INCLUDE: "../../common/modules/swhid.org::#oneslide" :only-contents t ** A revolutionary infrastructure for software source code #+BEAMER: \vspace{-2mm} *** The /graph/ of Software Development :B_picblock: :PROPERTIES: :BEAMER_env: picblock :BEAMER_COL: .5 :BEAMER_OPT: pic=git-merkle/merkle-vertical, leftpic=true, width=.4\linewidth :END: All software development with its history, in *a single graph* ... #+BEAMER: \pause \vspace{-2mm} *** The /blockchain/ of Software Development :B_picblock: :PROPERTIES: :BEAMER_opt: pic=merkle, leftpic=true, width=.8\linewidth :BEAMER_env: picblock :BEAMER_COL: .5 :BEAMER_act: :END: ... a single *Merkle* graph, with /intrinsic ids/ for *traceability* #+BEAMER: \pause *** :B_ignoreheading: :PROPERTIES: :BEAMER_env: ignoreheading :END: *** A /pillar/ of Open Science :B_picblock: :PROPERTIES: :BEAMER_env: picblock :BEAMER_OPT: pic=PreservationTriangle.png,leftpic=true, width=.6\linewidth :BEAMER_COL: .5 :END: Reference *archive* of\\ Research Software #+BEAMER: \pause *** Reference platform for /Big Code/ :B_picblock: :PROPERTIES: :BEAMER_opt: pic=universal, leftpic=true, width=.4\linewidth :BEAMER_env: picblock :BEAMER_COL: .5 :BEAMER_act: :END: *One uniform data structure* enables /massive/ machine learning for *quality, cybersecurity*, etc. - + * The archive in action +** An example is worth a thousand words + - Browse [[https://archive.softwareheritage.org][the archive]] + - [[https://save.softwareheritage.org][Trigger archival]] of your preferred software in a breeze + - Get and use SWHIDs ([[https://docs.softwareheritage.org/devel/swh-model/persistent-identifiers.html][full specification available online]]) + - [[https://doc.archives-ouvertes.fr/en/deposit/deposit-software-source-code/][curated deposit in SWH via HAL]], see for example: + [[https://hal.archives-ouvertes.fr/hal-02130801][LinBox]], [[https://hal.archives-ouvertes.fr/hal-01897934][SLALOM]], [[https://hal.archives-ouvertes.fr/hal-02130729][Givaro]], [[https://hal.archives-ouvertes.fr/hal-02137040][NS2DDV]], [[https://hal.archives-ouvertes.fr/lirmm-02136558][SumGra]], [[https://hal.archives-ouvertes.fr/hal-02155786][Coq proof]], ... + - cite software [[https://www.softwareheritage.org/2020/05/26/citing-software-with-style/][with the biblatex-software style]] from CTAN + - Example use in a research article: compare Fig. 1 and conclusions + - in [[http://www.dicosmo.org/Articles/2012-DaneluttoDiCosmo-Pcs.pdf][the 2012 version]] + - in [[https://www.dicosmo.org/share/parmap_swh.pdf][the updated version]] using SWHIDs and Software Heritage + - Example use in a research article: extensive use of SWHIDs in [[https://www.dicosmo.org/Articles/2020-ReScienceC.pdf][a replication experiment]] +* Preserving knowledge all around +** Paris Call on Software Source Code +*** :B_column:BMCOL: + :PROPERTIES: + :BEAMER_col: .5 + :BEAMER_env: column + :END: + #+ATTR_LATEX: :width .9\linewidth + file:UNESCOParisCallMeeting.png + At UNESCO, Inria, and Software Heritage invitation,\\ + [[https://en.unesco.org/news/experts-call-greater-recognition-software-source-code-heritage-sustainable-development][40 international experts meet in Paris]] ... + #+BEAMER: \pause +*** :B_column:BMCOL: + :PROPERTIES: + :BEAMER_col: .5 + :BEAMER_env: column + :END: + #+ATTR_LATEX: :width .85\linewidth + file:paris_call_ssc_cover.jpg + [[https://en.unesco.org/foss/paris-call-software-source-code][Their call is published on Feb 2019]]\\ + \hfill it's open for signatures! +*** :B_ignoreheading: + :PROPERTIES: + :BEAMER_env: ignoreheading + :END: +*** + \hfill Let's see some hightlights! ** Rescuing landmark legacy software... \hfill /\href{https://unesdoc.unesco.org/ark:/48223/pf0000371017}{SWHAP}/ # variant of #+INCLUDE: "../../common/modules/swh-acquisition-process.org::#swhap" :only-contents t :minlevel 3 *** Paris Call on Software Source Code “[We call to] support efforts to gather and preserve the artifacts and narratives of the history of computing, while the earlier creators are still alive” #+BEAMER: \pause *** :B_block:BMCOL: :PROPERTIES: :BEAMER_col: 0.3 :END: #+BEGIN_EXPORT latex \begin{center} \includegraphics[width=\extblockscale{1.1\linewidth}]{SWHAP-cover.pdf} \end{center} #+END_EXPORT *** :B_block:BMCOL: :PROPERTIES: :BEAMER_col: 0.7 :END: - **Rescue** Legacy Software from different media\\ \mbox{}\\ - **Curate** the code - reconstruct the development history + /Software Heritage - GitHub/ work on fixing git - collect the metadata\\ \mbox{}\\ - **Archive** in Software Heritage *** *UNESCO, UniPi and Software Heritage* collaboration \hfill worldwide scope ** An example: TAUmus, from Pisa (70's) #+INCLUDE: "../../common/modules/swh-acquisition-process.org::#swhaptaumus" :only-contents t :minlevel 3 ** ... and massive amount of present source code! *** Saving 250.000 endangered repositories... - summer 2019: BitBucket announce Mercurial VCS phase out - fall 2019: Software Heritage teams up with Octobus (funded by NLNet, thanks!) - july 2020: BitBucket erases /250.000/ repositories - august 2020: [[https://bitbucket-archive.softwareheritage.org][bitbucket-archive.softwareheritage.org]] is live #+BEAMER: \pause *** ... preserving the web of knowledge \hfill (Tweet [[https://twitter.com/gabrielaltay/status/1300218789762662401][is here]] ) :B_picblock: :PROPERTIES: :BEAMER_env: picblock :BEAMER_OPT: pic=bitbucket_swh_praise.png, width=.6\linewidth, leftpic=true :END: \\ *Bottomline*\\ /explicit deposit/ is important, ...\\ \mbox{}\hfill ... and we must promote it...\hfill\mbox{}\\ \mbox{}\hfill ... but will never be enough.\\ \mbox{}\\ \mbox{}\hfill /(think also of all software dependencies!)/ -* Demo time! -** A walkthrough - - Browse [[https://archive.softwareheritage.org][the archive]] - - Get and use SWHIDs ([[https://docs.softwareheritage.org/devel/swh-model/persistent-identifiers.html][full specification available online]]) - - cite software [[https://www.softwareheritage.org/2020/05/26/citing-software-with-style/][with the biblatex-software style]] from CTAN - - Example use in a research article: compare Fig. 1 and conclusions - - in [[http://www.dicosmo.org/Articles/2012-DaneluttoDiCosmo-Pcs.pdf][the 2012 version]] - - in [[https://www.dicosmo.org/share/parmap_swh.pdf][the updated version]] using SWHIDs and Software Heritage - - Example use in a research article: extensive use of SWHIDs in [[https://www.dicosmo.org/Articles/2020-ReScienceC.pdf][a replication experiment]] - - [[https://save.softwareheritage.org][Trigger archival]] of your preferred software in a breeze - - [[https://doc.archives-ouvertes.fr/en/deposit/deposit-software-source-code/][curated deposit in SWH via HAL]], see for example: - [[https://hal.archives-ouvertes.fr/hal-02130801][LinBox]], [[https://hal.archives-ouvertes.fr/hal-01897934][SLALOM]], [[https://hal.archives-ouvertes.fr/hal-02130729][Givaro]], [[https://hal.archives-ouvertes.fr/hal-02137040][NS2DDV]], [[https://hal.archives-ouvertes.fr/lirmm-02136558][SumGra]], [[https://hal.archives-ouvertes.fr/hal-02155786][Coq proof]], ... - - rescue landmark legacy software, see the [[https://www.softwareheritage.org/swhap/][SWHAP process with UNESCO]] - * Conclusion ** Come in, we're open! \hfill www.softwareheritage.org #+BEGIN_EXPORT latex \begin{center} \includegraphics[width=.6\linewidth]{SWH-logo.pdf} \end{center} \begin{center} {\large \url{www.softwareheritage.org} \hspace{4em} \url{@swheritage}} \end{center} #+END_EXPORT #+LATEX: {\begin{center}\Large Everybody is concerned, everybody can help build\end{center}} *** The Library of Alexandria of code :B_picblock: :PROPERTIES: :BEAMER_env: picblock :BEAMER_COL: 0.42 :BEAMER_OPT: pic=clock-spring-forward.png,width=.45\linewidth,leftpic=true :END: - recover the past - structure the future *** A CERN for Software :B_picblock: :PROPERTIES: :BEAMER_env: picblock :BEAMER_COL: 0.5 :BEAMER_OPT: pic=atacama-telescope.jpg,width=.5\linewidth,leftpic=true :END: - build better software + for industry + for society as a whole * Appendix :B_appendix: :PROPERTIES: :BEAMER_env: appendix :END: ** \vfill \centerline{\Huge Appendix} \vfill +* Strategies +** All the source code: strategy + #+BEAMER: \begin{center}\includegraphics[width=\extblockscale{\linewidth}]{swh-collect-strategies}\end{center} + * SWHIDs by the example ** A word on the trust model for systems of identifiers \vspace{-5pt} *** Two general classes of systems of identifiers - intrinsic :: /computed/ from the object /(no registry required, fully decentralised)/\\ /(e.g.: chemical notation, music notation, hashes, SWHIDs)/\pause - extrinsic :: /assigned/ by an authority /(need a registry)/\\ /(e.g.: passport number, DOI, ARK, RRID, etc.)/\pause \mbox{}\hfill See [[https://www.softwareheritage.org/2020/07/09/intrinsic-vs-extrinsic-identifiers/][the dedicated blog post]] for more details #+BEAMER: \pause *** Trust model, extrinsic (e.g. DOIs) :B_block: :PROPERTIES: :BEAMER_COL: .5 :BEAMER_env: block :END: #+ATTR_LATEX: :width \linewidth file:doi-vs-pid-1.pdf #+BEAMER: \pause *** Trust model, intrinsic (e.g. SWHIDs) :B_block: :PROPERTIES: :BEAMER_env: block :BEAMER_COL: .45 :END: #+ATTR_LATEX: :width .8\linewidth file:doi-vs-pid-3.pdf *** Trust model for DOIs with checksums :B_block:noexport: :PROPERTIES: :BEAMER_COL: .5 :BEAMER_env: block :END: #+ATTR_LATEX: :width \linewidth file:doi-vs-pid-2.pdf *** :B_ignoreheading:noexport: :PROPERTIES: :BEAMER_env: ignoreheading :END: -** Software Heritage Identifiers (SWHID) \hfill [[https://docs.softwareheritage.org/devel/swh-model/persistent-identifiers.html][link to full docs]] -# #+INCLUDE: "../../common/modules/swh-id-syntax.org::#swh-id-syntax" :only-contents t :minlevel 3 - #+LATEX: \centering%\forcebeamerstart - #+LATEX: \mode{\only<1>{\includegraphics[width=\linewidth]{SWHID-v1.4_1.png}}} - #+LATEX: \mode{\only<2>{\includegraphics[width=\linewidth]{SWHID-v1.4_2.png}}} - #+LATEX: \only<3->{\includegraphics[width=\linewidth]{SWHID-v1.4_3.png}} - #+LATEX: %\forcebeamerend -*** An emerging standard :B_block: - :PROPERTIES: - :BEAMER_act: <4-> - :BEAMER_COL: .6 - :BEAMER_env: block - :END: - - in Linux Foundation's [[https://spdx.github.io/spdx-spec/appendix-VI-external-repository-identifiers/#persistent-id][SPDX 2.2]] - - IANA registered, WikiData property [[https://www.wikidata.org/wiki/Property:P6138][P6138]] -*** Examples: :B_block: - :PROPERTIES: - :BEAMER_act: <5-> - :BEAMER_COL: .4 - :BEAMER_env: block - :END: - - [[https://archive.softwareheritage.org/swh:1:cnt:64582b78792cd6c2d67d35da5a11bb80886a6409;origin=https://github.com/virtualagc/virtualagc;lines=245-261/][Apollo 11 AGC excerpt]], - - [[https://archive.softwareheritage.org/swh:1:cnt:bb0faf6919fc60636b2696f32ec9b3c2adb247fe;origin=https://github.com/id-Software/Quake-III-Arena;lines=549-572/][Quake III rsqrt]] - ** A worked example #+LATEX: \centering\forcebeamerstart #+LATEX: \only<1>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_1.pdf}}} #+LATEX: \only<2>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/contents.pdf}}} #+LATEX: \only<3>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_2_contents.pdf}}} #+LATEX: \only<4>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/directories.pdf}}} #+LATEX: \only<5>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_3_directories.pdf}}} #+LATEX: \only<6>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/revisions.pdf}}} #+LATEX: \only<7>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_4_revisions.pdf}}} #+LATEX: \only<8>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/releases.pdf}}} #+LATEX: \only<9>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_5_releases.pdf}}} #+LATEX: \only<10>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/snapshots.pdf}}} #+LATEX: \forcebeamerend * News ** Milestones :noexport: #+INCLUDE: "../../common/modules/swh-key-dates.org::#keydates" :minlevel 3 :only-contents t ** News : archiving /public/ code #+latex: \begin{center} #+ATTR_LATEX: :width 0.7\linewidth file:codeetalab.png #+latex: \end{center} #+BEAMER: \pause https://code.etalab.gouv.fr ** News : SWHAP *** Paris Call on Software Source Code “[We call to] support efforts to gather and preserve the artifacts and narratives of the history of computing, while the earlier creators are still alive” #+BEAMER: \pause *** SWHAP : an important step forward - detailed guidelines to *curate* landmark legacy source code and *archive* it on Software Heritage - intense cooperation with *Università di Pisa* and *UNESCO* - open to all, we'll promote it worldwide *** https://www.softwareheritage.org/swhap