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REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN APRIL 2021 Welcome to the April 2021 report from the Reproducible Builds project!. In these reports we try to the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
REPRODUCIBLE BUILDS IN JANUARY 2021SOURCE_DATE_EPOCH
TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the REPRODUCING R PACKAGES R packages compile into a .rdb database format that contains the package’s definitions, plus a .rdx index file for easy lookup in the .rdb file. Usually, there is a main rdb with the package contents, plus another rdb that stores the help data. There is also a paths.rds (same format as .rdx) that contains some more stuff.. One can actually read these files by hand using Rscript, see the SOURCE_DATE_EPOCH SPECIFICATION SOURCE_DATE_EPOCH. A UNIX timestamp, defined as the number of seconds, excluding leap seconds, since 01 Jan 1970 00:00:00 UTC . The value MUST be exported through the operating system's usual environment mechanism. The value MUST be an ASCII representation of an integer with no fractional component, identical to the output format of date+%s .
REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN APRIL 2021 Welcome to the April 2021 report from the Reproducible Builds project!. In these reports we try to the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
REPRODUCIBLE BUILDS IN JANUARY 2021SOURCE_DATE_EPOCH
TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the REPRODUCING R PACKAGES R packages compile into a .rdb database format that contains the package’s definitions, plus a .rdx index file for easy lookup in the .rdb file. Usually, there is a main rdb with the package contents, plus another rdb that stores the help data. There is also a paths.rds (same format as .rdx) that contains some more stuff.. One can actually read these files by hand using Rscript, see the SOURCE_DATE_EPOCH SPECIFICATION SOURCE_DATE_EPOCH. A UNIX timestamp, defined as the number of seconds, excluding leap seconds, since 01 Jan 1970 00:00:00 UTC . The value MUST be exported through the operating system's usual environment mechanism. The value MUST be an ASCII representation of an integer with no fractional component, identical to the output format of date+%s .
TOOLS — REPRODUCIBLE-BUILDS.ORG Tools. Several tools are available to make your life easier when working on reproducible builds. diffoscope. diffoscope will try to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human-readable forms for comparison.DOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build NEWS — REPRODUCIBLE-BUILDS.ORG Follow us on Twitter @ReproBuilds, Mastodon @reproducible_builds@fosstodon.org & Reddit and please consider making a donation.. • Content licensed under CC BY-SA 4.0, style licensed under MIT.Templates and styles based on the Tor Styleguide.Logos and trademarks belong to their respective owners. TALKS — REPRODUCIBLE-BUILDS.ORG Reproducible Buster and beyond ¶. by the Reproducible Builds team: Benjamin Hof, Chris Lamb, Holger Levsen, Steven Chamberlain, Vagrant Cascadian. DebConf 2018 • Hsinshu, Taiwan • 2 August 2018. Video YouTube. Software transparency: package security beyond signatures and reproducible builds ¶. REPRODUCIBLE BUILDS IN JANUARY 2021 Reproducible Builds in January 2021. Welcome to the report from the Reproducible Builds project for January 2021. In our reports we outline the most important things that have happened in the world of reproducible builds in the past month. If you are interested in contributing to the project, please visit our Contribute page on ourwebsite.
REPRODUCIBLE BUILDS IN APRIL 2021 Welcome to the April 2021 report from the Reproducible Builds project!. In these reports we try to the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
ACADEMIC PUBLICATIONS Academic publications. Trusting Trust - Reflections on Trusting Trust (1984) — Ken Thompson. (Fully Countering Trusting Trust through Diverse Double-Compiling (2005/2009) — David A. Wheeler (PDF, . Functional Package Management with Guix (2013) — Ludovic Courtès.. Reproducible and User-Controlled Software Environments in HPC with Guix (2015) — Ludovic Courtès, Ricardo Wurmus JVM — REPRODUCIBLE-BUILDS.ORG JVM. The conventions for the JVM ecosystem are under active development, see how-to contribute.. The JVM ecosystem provides many languages and build tools. Since the JVM is not reproducible-friendly from the beginning – jar/zip files are a first natural source of variation, with files order and timestamp –, each build tool requires some work to provide Reproducible Builds.CONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. PROVIDEAVERIFIABLEPATHFROMSOURCETOBINARY LUNAR LUNAR@DEBIAN Howtomakeyoursoftwarebuildreproducibly Provideaverifiablepathfromsourcetobinary Lunar lunar@debian.org ChaosCommunicationCamp 2015-08-13 Lunar(DebianREPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () REPRODUCIBLE BUILDS IN JANUARY 2021DOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN APRIL 2021 Welcome to the April 2021 report from the Reproducible Builds project!. In these reports we try to the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
REPRODUCIBLE BUILDS IN JUNE 2020 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the REPRODUCING R PACKAGES R packages compile into a .rdb database format that contains the package’s definitions, plus a .rdx index file for easy lookup in the .rdb file. Usually, there is a main rdb with the package contents, plus another rdb that stores the help data. There is also a paths.rds (same format as .rdx) that contains some more stuff.. One can actually read these files by hand using Rscript, see theREPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () REPRODUCIBLE BUILDS IN JANUARY 2021DOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN APRIL 2021 Welcome to the April 2021 report from the Reproducible Builds project!. In these reports we try to the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
REPRODUCIBLE BUILDS IN JUNE 2020 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the REPRODUCING R PACKAGES R packages compile into a .rdb database format that contains the package’s definitions, plus a .rdx index file for easy lookup in the .rdb file. Usually, there is a main rdb with the package contents, plus another rdb that stores the help data. There is also a paths.rds (same format as .rdx) that contains some more stuff.. One can actually read these files by hand using Rscript, see theDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build TOOLS — REPRODUCIBLE-BUILDS.ORG Tools. Several tools are available to make your life easier when working on reproducible builds. diffoscope. diffoscope will try to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human-readable forms for comparison. NEWS — REPRODUCIBLE-BUILDS.ORG Follow us on Twitter @ReproBuilds, Mastodon @reproducible_builds@fosstodon.org & Reddit and please consider making a donation.. • Content licensed under CC BY-SA 4.0, style licensed under MIT.Templates and styles based on the Tor Styleguide.Logos and trademarks belong to their respective owners. REPRODUCIBLE BUILDS IN MAY 2021 Welcome to the May 2021 report from the Reproducible Builds project. In these reports we try to highlight the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
LOCALES — REPRODUCIBLE-BUILDS.ORG The system timezone and TZ environment variable will also affect the output of time formatting functions.. Collation order. Common sorting functions are affected by the LC_COLLATE environment variable, which can be overridden by LC_ALL.Some locales can be quite surprising. This typically shows when using sort.The fr_FR locale will sort independently of the character case: JVM — REPRODUCIBLE-BUILDS.ORG JVM. The conventions for the JVM ecosystem are under active development, see how-to contribute.. The JVM ecosystem provides many languages and build tools. Since the JVM is not reproducible-friendly from the beginning – jar/zip files are a first natural source of variation, with files order and timestamp –, each build tool requires some work to provide Reproducible Builds. RECORDING THE BUILD ENVIRONMENT Recording the build environment. It is been customary in user facing software to provide a way for developers investigating bugs to learn how the software has been built. The “about dialog” or output of --version typically contains information about the build environment. In the context of reproducible builds, we either actively makeCONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. BUILD PATH — REPRODUCIBLE-BUILDS.ORG Build path. Some tools will record the path of the source files in their output. Most compilers write the path of the source in the debug information in order to locate the associated source files. Some tools have flags (like gzip’s -n) that prevent them from writing the path in their output. Proposing patches to add a similar feature in STABLE ORDER FOR INPUTS Stable order for inputs. If building your software requires processing several inputs at once, make sure the order is stable across builds. A typical example is creating an archive from the content of adirectory.
REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () REPRODUCIBLE BUILDS IN JANUARY 2021DOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN APRIL 2021 Welcome to the April 2021 report from the Reproducible Builds project!. In these reports we try to the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
REPRODUCIBLE BUILDS IN JUNE 2020 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the REPRODUCING R PACKAGES R packages compile into a .rdb database format that contains the package’s definitions, plus a .rdx index file for easy lookup in the .rdb file. Usually, there is a main rdb with the package contents, plus another rdb that stores the help data. There is also a paths.rds (same format as .rdx) that contains some more stuff.. One can actually read these files by hand using Rscript, see theREPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () REPRODUCIBLE BUILDS IN JANUARY 2021DOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN APRIL 2021 Welcome to the April 2021 report from the Reproducible Builds project!. In these reports we try to the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
REPRODUCIBLE BUILDS IN JUNE 2020 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the REPRODUCING R PACKAGES R packages compile into a .rdb database format that contains the package’s definitions, plus a .rdx index file for easy lookup in the .rdb file. Usually, there is a main rdb with the package contents, plus another rdb that stores the help data. There is also a paths.rds (same format as .rdx) that contains some more stuff.. One can actually read these files by hand using Rscript, see theDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build TOOLS — REPRODUCIBLE-BUILDS.ORG Tools. Several tools are available to make your life easier when working on reproducible builds. diffoscope. diffoscope will try to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human-readable forms for comparison. NEWS — REPRODUCIBLE-BUILDS.ORG Follow us on Twitter @ReproBuilds, Mastodon @reproducible_builds@fosstodon.org & Reddit and please consider making a donation.. • Content licensed under CC BY-SA 4.0, style licensed under MIT.Templates and styles based on the Tor Styleguide.Logos and trademarks belong to their respective owners. REPRODUCIBLE BUILDS IN MAY 2021 Welcome to the May 2021 report from the Reproducible Builds project. In these reports we try to highlight the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
LOCALES — REPRODUCIBLE-BUILDS.ORG The system timezone and TZ environment variable will also affect the output of time formatting functions.. Collation order. Common sorting functions are affected by the LC_COLLATE environment variable, which can be overridden by LC_ALL.Some locales can be quite surprising. This typically shows when using sort.The fr_FR locale will sort independently of the character case: JVM — REPRODUCIBLE-BUILDS.ORG JVM. The conventions for the JVM ecosystem are under active development, see how-to contribute.. The JVM ecosystem provides many languages and build tools. Since the JVM is not reproducible-friendly from the beginning – jar/zip files are a first natural source of variation, with files order and timestamp –, each build tool requires some work to provide Reproducible Builds. RECORDING THE BUILD ENVIRONMENT Recording the build environment. It is been customary in user facing software to provide a way for developers investigating bugs to learn how the software has been built. The “about dialog” or output of --version typically contains information about the build environment. In the context of reproducible builds, we either actively makeCONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. BUILD PATH — REPRODUCIBLE-BUILDS.ORG Build path. Some tools will record the path of the source files in their output. Most compilers write the path of the source in the debug information in order to locate the associated source files. Some tools have flags (like gzip’s -n) that prevent them from writing the path in their output. Proposing patches to add a similar feature in STABLE ORDER FOR INPUTS Stable order for inputs. If building your software requires processing several inputs at once, make sure the order is stable across builds. A typical example is creating an archive from the content of adirectory.
REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build REPRODUCIBLE BUILDS IN JANUARY 2021 WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN APRIL 2020 REPRODUCIBLE BUILDS IN APRIL 2021 Welcome to the April 2021 report from the Reproducible Builds project!. In these reports we try to the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
SOURCE_DATE_EPOCH
TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the REPRODUCING R PACKAGES R packages compile into a .rdb database format that contains the package’s definitions, plus a .rdx index file for easy lookup in the .rdb file. Usually, there is a main rdb with the package contents, plus another rdb that stores the help data. There is also a paths.rds (same format as .rdx) that contains some more stuff.. One can actually read these files by hand using Rscript, see theREPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build REPRODUCIBLE BUILDS IN JANUARY 2021 WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN APRIL 2020 REPRODUCIBLE BUILDS IN APRIL 2021 Welcome to the April 2021 report from the Reproducible Builds project!. In these reports we try to the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
SOURCE_DATE_EPOCH
TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the REPRODUCING R PACKAGES R packages compile into a .rdb database format that contains the package’s definitions, plus a .rdx index file for easy lookup in the .rdb file. Usually, there is a main rdb with the package contents, plus another rdb that stores the help data. There is also a paths.rds (same format as .rdx) that contains some more stuff.. One can actually read these files by hand using Rscript, see the TOOLS — REPRODUCIBLE-BUILDS.ORG Tools. Several tools are available to make your life easier when working on reproducible builds. diffoscope. diffoscope will try to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human-readable forms for comparison.DOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build NEWS — REPRODUCIBLE-BUILDS.ORG Follow us on Twitter @ReproBuilds, Mastodon @reproducible_builds@fosstodon.org & Reddit and please consider making a donation.. • Content licensed under CC BY-SA 4.0, style licensed under MIT.Templates and styles based on the Tor Styleguide.Logos and trademarks belong to their respective owners. REPRODUCIBLE BUILDS IN MAY 2021 Welcome to the May 2021 report from the Reproducible Builds project. In these reports we try to highlight the most important things that we have been up to over the past month. As a quick recap, whilst anyone may inspect the source code of free software for malicious flaws, almost all software is distributed to end users as pre-compiledbinaries.
MAKING PLANS
Making plans. The idea of reproducible builds is to empower anyone to verify that no flaws have been introduced during the build process by reproducing byte-for-byte identical binary packages from a given source.. Achieving reproducible builds requires cooperation from multiple roles involved in software production. On small projects, all these roles might be carried by a single person, but it LOCALES — REPRODUCIBLE-BUILDS.ORG The system timezone and TZ environment variable will also affect the output of time formatting functions.. Collation order. Common sorting functions are affected by the LC_COLLATE environment variable, which can be overridden by LC_ALL.Some locales can be quite surprising. This typically shows when using sort.The fr_FR locale will sort independently of the character case: REPRODUCIBLE BUILDS IN MARCH 2021 Welcome to the March 2021 report from the Reproducible Builds project!. In our monthly reports, we try to outline the most important things that have happened in the reproducible builds community. ACADEMIC PUBLICATIONS Academic publications. Trusting Trust - Reflections on Trusting Trust (1984) — Ken Thompson. (Fully Countering Trusting Trust through Diverse Double-Compiling (2005/2009) — David A. Wheeler (PDF, . Functional Package Management with Guix (2013) — Ludovic Courtès.. Reproducible and User-Controlled Software Environments in HPC with Guix (2015) — Ludovic Courtès, Ricardo WurmusCONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. STABLE ORDER FOR INPUTS Stable order for inputs. If building your software requires processing several inputs at once, make sure the order is stable across builds. A typical example is creating an archive from the content of adirectory.
REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN JANUARY 2021 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
CONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the 84 — REPRODUCIBLE-BUILDS.ORG What happened in the Reproducible Builds effort between Sunday November 27 and Saturday December 3 2016:. Reproducible work in other projects. Ducible is a new tool to make Windows builds reproducible.. Manish Goregaokar wrote about Reflections on Rusting Trust.. Media coverage, etc. There was a Reproducible Builds hackathon in Boston with contributions from Dafydd, Valerie, Clint,REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN JANUARY 2021 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
CONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the 84 — REPRODUCIBLE-BUILDS.ORG What happened in the Reproducible Builds effort between Sunday November 27 and Saturday December 3 2016:. Reproducible work in other projects. Ducible is a new tool to make Windows builds reproducible.. Manish Goregaokar wrote about Reflections on Rusting Trust.. Media coverage, etc. There was a Reproducible Builds hackathon in Boston with contributions from Dafydd, Valerie, Clint, TOOLS — REPRODUCIBLE-BUILDS.ORG Tools. Several tools are available to make your life easier when working on reproducible builds. diffoscope. diffoscope will try to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human-readable forms for comparison.DOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build NEWS — REPRODUCIBLE-BUILDS.ORG Follow us on Twitter @ReproBuilds, Mastodon @reproducible_builds@fosstodon.org & Reddit and please consider making a donation.. • Content licensed under CC BY-SA 4.0, style licensed under MIT.Templates and styles based on the Tor Styleguide.Logos and trademarks belong to their respective owners.DEFINITIONS
Definitions When is a build reproducible? A build is reproducible if given the same source code, build environment and build instructions, any party can recreate bit-by-bit identical copies of all specified artifacts.. The relevant attributes of the build environment, the build instructions and the source code as well as the expected reproducible artifacts are defined by the authors orMAKING PLANS
Making plans. The idea of reproducible builds is to empower anyone to verify that no flaws have been introduced during the build process by reproducing byte-for-byte identical binary packages from a given source.. Achieving reproducible builds requires cooperation from multiple roles involved in software production. On small projects, all these roles might be carried by a single person, but it JVM — REPRODUCIBLE-BUILDS.ORG JVM. The conventions for the JVM ecosystem are under active development, see how-to contribute.. The JVM ecosystem provides many languages and build tools. Since the JVM is not reproducible-friendly from the beginning – jar/zip files are a first natural source of variation, with files order and timestamp –, each build tool requires some work to provide Reproducible Builds. BUILD PATH — REPRODUCIBLE-BUILDS.ORG Build path. Some tools will record the path of the source files in their output. Most compilers write the path of the source in the debug information in order to locate the associated source files. Some tools have flags (like gzip’s -n) that prevent them from writing the path in their output. Proposing patches to add a similar feature inSYSTEM IMAGES
System images. This documentation’s intent is to share what we currently know about making system images build reproducibly: for example, VM and cloud images, live systems, OS installer ISO images. RECORDING THE BUILD ENVIRONMENT Recording the build environment. It is been customary in user facing software to provide a way for developers investigating bugs to learn how the software has been built. The “about dialog” or output of --version typically contains information about the build environment. In the context of reproducible builds, we either actively make STABLE ORDER FOR INPUTS Stable order for inputs. If building your software requires processing several inputs at once, make sure the order is stable across builds. A typical example is creating an archive from the content of adirectory.
REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN JANUARY 2021 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
CONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the 84 — REPRODUCIBLE-BUILDS.ORG What happened in the Reproducible Builds effort between Sunday November 27 and Saturday December 3 2016:. Reproducible work in other projects. Ducible is a new tool to make Windows builds reproducible.. Manish Goregaokar wrote about Reflections on Rusting Trust.. Media coverage, etc. There was a Reproducible Builds hackathon in Boston with contributions from Dafydd, Valerie, Clint,REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN JANUARY 2021 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
CONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the 84 — REPRODUCIBLE-BUILDS.ORG What happened in the Reproducible Builds effort between Sunday November 27 and Saturday December 3 2016:. Reproducible work in other projects. Ducible is a new tool to make Windows builds reproducible.. Manish Goregaokar wrote about Reflections on Rusting Trust.. Media coverage, etc. There was a Reproducible Builds hackathon in Boston with contributions from Dafydd, Valerie, Clint, TOOLS — REPRODUCIBLE-BUILDS.ORG Tools. Several tools are available to make your life easier when working on reproducible builds. diffoscope. diffoscope will try to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human-readable forms for comparison.DOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build NEWS — REPRODUCIBLE-BUILDS.ORG Follow us on Twitter @ReproBuilds, Mastodon @reproducible_builds@fosstodon.org & Reddit and please consider making a donation.. • Content licensed under CC BY-SA 4.0, style licensed under MIT.Templates and styles based on the Tor Styleguide.Logos and trademarks belong to their respective owners.DEFINITIONS
Definitions When is a build reproducible? A build is reproducible if given the same source code, build environment and build instructions, any party can recreate bit-by-bit identical copies of all specified artifacts.. The relevant attributes of the build environment, the build instructions and the source code as well as the expected reproducible artifacts are defined by the authors orMAKING PLANS
Making plans. The idea of reproducible builds is to empower anyone to verify that no flaws have been introduced during the build process by reproducing byte-for-byte identical binary packages from a given source.. Achieving reproducible builds requires cooperation from multiple roles involved in software production. On small projects, all these roles might be carried by a single person, but it JVM — REPRODUCIBLE-BUILDS.ORG JVM. The conventions for the JVM ecosystem are under active development, see how-to contribute.. The JVM ecosystem provides many languages and build tools. Since the JVM is not reproducible-friendly from the beginning – jar/zip files are a first natural source of variation, with files order and timestamp –, each build tool requires some work to provide Reproducible Builds. BUILD PATH — REPRODUCIBLE-BUILDS.ORG Build path. Some tools will record the path of the source files in their output. Most compilers write the path of the source in the debug information in order to locate the associated source files. Some tools have flags (like gzip’s -n) that prevent them from writing the path in their output. Proposing patches to add a similar feature inSYSTEM IMAGES
System images. This documentation’s intent is to share what we currently know about making system images build reproducibly: for example, VM and cloud images, live systems, OS installer ISO images. RECORDING THE BUILD ENVIRONMENT Recording the build environment. It is been customary in user facing software to provide a way for developers investigating bugs to learn how the software has been built. The “about dialog” or output of --version typically contains information about the build environment. In the context of reproducible builds, we either actively make STABLE ORDER FOR INPUTS Stable order for inputs. If building your software requires processing several inputs at once, make sure the order is stable across builds. A typical example is creating an archive from the content of adirectory.
REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN JANUARY 2021 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
CONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the 84 — REPRODUCIBLE-BUILDS.ORG What happened in the Reproducible Builds effort between Sunday November 27 and Saturday December 3 2016:. Reproducible work in other projects. Ducible is a new tool to make Windows builds reproducible.. Manish Goregaokar wrote about Reflections on Rusting Trust.. Media coverage, etc. There was a Reproducible Builds hackathon in Boston with contributions from Dafydd, Valerie, Clint,REPRODUCIBLE BUILDS
Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code. () TOOLS — REPRODUCIBLE-BUILDS.ORGSEE MORE ON REPRODUCIBLE-BUILDS.ORGDOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build WHAT'S IN A BUILD ENVIRONMENT? What's in a build environment? Reproducible builds does not mandate that a given piece of source code is turned into the same bytes in allsituations.
REPRODUCIBLE BUILDS IN JANUARY 2021 REPRODUCIBLE BUILDS IN APRIL 2020SOURCE_DATE_EPOCH
CONTINUOUS TESTS
Continuous tests. The following projects are tested within the reproducible test infrastructure. Click the different links to see current tests and results. TIMESTAMPS — REPRODUCIBLE-BUILDS.ORG Timestamps. Timestamps make the biggest source of reproducibility issues. Many build tools record the current date and time. The filesystem does, and most archive formats will happily record modification times on top of their own timestamps. It is also customary to record the 84 — REPRODUCIBLE-BUILDS.ORG What happened in the Reproducible Builds effort between Sunday November 27 and Saturday December 3 2016:. Reproducible work in other projects. Ducible is a new tool to make Windows builds reproducible.. Manish Goregaokar wrote about Reflections on Rusting Trust.. Media coverage, etc. There was a Reproducible Builds hackathon in Boston with contributions from Dafydd, Valerie, Clint, TOOLS — REPRODUCIBLE-BUILDS.ORG Tools. Several tools are available to make your life easier when working on reproducible builds. diffoscope. diffoscope will try to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human-readable forms for comparison.DOCUMENTATION
Documentation. Getting reproducible builds for your software or distribution might be easier than you think. However, it might require small changes to your build NEWS — REPRODUCIBLE-BUILDS.ORG Follow us on Twitter @ReproBuilds, Mastodon @reproducible_builds@fosstodon.org & Reddit and please consider making a donation.. • Content licensed under CC BY-SA 4.0, style licensed under MIT.Templates and styles based on the Tor Styleguide.Logos and trademarks belong to their respective owners.DEFINITIONS
Definitions When is a build reproducible? A build is reproducible if given the same source code, build environment and build instructions, any party can recreate bit-by-bit identical copies of all specified artifacts.. The relevant attributes of the build environment, the build instructions and the source code as well as the expected reproducible artifacts are defined by the authors orMAKING PLANS
Making plans. The idea of reproducible builds is to empower anyone to verify that no flaws have been introduced during the build process by reproducing byte-for-byte identical binary packages from a given source.. Achieving reproducible builds requires cooperation from multiple roles involved in software production. On small projects, all these roles might be carried by a single person, but it JVM — REPRODUCIBLE-BUILDS.ORG JVM. The conventions for the JVM ecosystem are under active development, see how-to contribute.. The JVM ecosystem provides many languages and build tools. Since the JVM is not reproducible-friendly from the beginning – jar/zip files are a first natural source of variation, with files order and timestamp –, each build tool requires some work to provide Reproducible Builds. BUILD PATH — REPRODUCIBLE-BUILDS.ORG Build path. Some tools will record the path of the source files in their output. Most compilers write the path of the source in the debug information in order to locate the associated source files. Some tools have flags (like gzip’s -n) that prevent them from writing the path in their output. Proposing patches to add a similar feature inSYSTEM IMAGES
System images. This documentation’s intent is to share what we currently know about making system images build reproducibly: for example, VM and cloud images, live systems, OS installer ISO images. RECORDING THE BUILD ENVIRONMENT Recording the build environment. It is been customary in user facing software to provide a way for developers investigating bugs to learn how the software has been built. The “about dialog” or output of --version typically contains information about the build environment. In the context of reproducible builds, we either actively make STABLE ORDER FOR INPUTS Stable order for inputs. If building your software requires processing several inputs at once, make sure the order is stable across builds. A typical example is creating an archive from the content of adirectory.
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REPRODUCIBLE BUILDS are a set of software development practices that create an independently-verifiable path from source to binary code.(more )
Home News Documentation Tools Who is involved? Talks Events Continuous tests Contribute Our sponsorsWHY DOES IT MATTER?
Whilst anyone may inspect the source code of free and open source software for malicious flaws, most software is distributed pre-compiled with no method to confirm whether they correspond. This incentivises attacks on developers who release software, not only via traditional exploitation, but also in the forms of political influence, blackmail or even threats of violence. This is particularly a concern for developers collaborating on privacy or security software: attacking these typically result in compromising particularly politically-sensitive targets such as dissidents, journalists and whistleblowers, as well as anyone wishing to communicate securely under a repressive regime. Whilst individual developers are a natural target, it additionally encourages attacks on build infrastructure as an successful attack would provide access to a large number of downstream computer systems. By modifying the generated binaries here instead of modifying the upstream source code, illicit changes are essentially invisible to its original authors and users alike. The motivation behind the REPRODUCIBLE BUILDS project is therefore to allow verification that no vulnerabilities or backdoors have been introduced during this compilation process. By promising IDENTICAL RESULTS are always generated from a given source, this allows MULTIPLE THIRD PARTIES to come to a consensus on a “correct” result, highlighting any deviations as suspect and worthy of scrutiny. This ability to notice if a developer or build system has been compromised then prevents such threats or attacks occurring in the first place, as any compromise can be quickly detected. As a result, front-liners cannot be threatened/coerced into exploiting or exposingtheir colleagues.
Several free software projects already, or will soon, provide reproducible builds.HOW?
First, the BUILD SYSTEM NEEDS TO BE MADE ENTIRELY DETERMINISTIC: transforming a given source must always create the same result. For example, the current date and time must not be recorded and output always has to be written in the same order. Second, the set of tools used to perform the build and more generally the BUILD ENVIRONMENT should either be RECORDED OR PRE-DEFINED. Third, users should be given a way to recreate a close enough build environment, perform the build process, and VALIDATE THAT THE OUTPUT MATCHES THE ORIGINAL BUILD. Learn more about how to make your software build reproducibly… RECENT MONTHLY REPORTS * Jun 3, 2021: Reproducible Builds in May 2021 * May 9, 2021: Reproducible Builds in April 2021 * Apr 7, 2021: Reproducible Builds in March 2021(See all reports )
RECENT NEWS
* Apr 6, 2021: Supporter spotlight: Ford Foundation * Oct 26, 2020: Second Reproducible Builds IRC meeting * Oct 21, 2020: Supporter spotlight: Civil Infrastructure Platform(See all .)
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