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359c0fd62b
2 Commits
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fanquake
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359c0fd62b |
Merge #17933: guix: Pin Guix using guix time-machine
88c83636d5a56bd9551577139786bdd3e74852c2 guix: Update documentation for time-machine (Carl Dong) e6050884fdabfa6e51e6afce2041d91e60a5adec guix: Pin Guix using `guix time-machine` (Carl Dong) Pull request description: An alternative to #16519, pinning our version of Guix and eliminating a `guix pull` and changing the default Guix profile of builders. I think this method might be superior, as it: - Eliminates the possibility of future changes to the `guix environment` command line interface breaking our builds - Eliminates the need to set up a separate channel repo It is a more general pinning solution than #16519. ----- The reason why I didn't originally propose this is because `guix time-machine` is a recent addition to Guix, only available since `f675f8dec73d02e319e607559ed2316c299ae8c7` ACKs for top commit: fanquake: ACK 88c83636d5a56bd9551577139786bdd3e74852c2 Tree-SHA512: 85e03b0987ffa86da73e02801e1cd8b7622698d70c4ba4e60561611be1e9717d661c2811a59b3e137b1b8eef2d0ba37c313867d035ebc89c3bd06a23a078064a |
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Wladimir J. van der Laan
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aec7441ac2 |
Merge #15277: contrib: Enable building in Guix containers
751549b52a9a4cd27389d807ae67f02bbb39cd7f contrib: guix: Additional clarifications re: substitutes (Carl Dong) cd3e947f50db7cfe05c05b368c25742193729a62 contrib: guix: Various improvements. (Carl Dong) 8dff3e48a9e03299468ed3b342642f01f70da9db contrib: guix: Clarify SOURCE_DATE_EPOCH. (Carl Dong) 3e80ec3ea9691c7c89173de922a113e643fe976b contrib: Add deterministic Guix builds. (Carl Dong) Pull request description: ~~**This post is kept updated as this project progresses. Use this [latest update link](https://github.com/bitcoin/bitcoin/pull/15277#issuecomment-497303718) to see what's new.**~~ Please read the `README.md`. ----- ### Guix Introduction This PR enables building bitcoin in Guix containers. [Guix](https://www.gnu.org/software/guix/manual/en/html_node/Features.html) is a transactional package manager much like Nix, but unlike Nix, it has more of a focus on [bootstrappability](https://www.gnu.org/software/guix/manual/en/html_node/Bootstrapping.html) and [reproducibility](https://www.gnu.org/software/guix/blog/tags/reproducible-builds/) which are attractive for security-sensitive projects like bitcoin. ### Guix Build Walkthrough Please read the `README.md`. [Old instructions no. 4](https://github.com/bitcoin/bitcoin/pull/15277#issuecomment-497303718) [Old instructions no. 3](https://github.com/bitcoin/bitcoin/pull/15277#issuecomment-493827011) [Old instructions no. 2](https://github.com/bitcoin/bitcoin/pull/15277#issuecomment-471658439) <details> <summary>Old instructions no. 1</summary> In this PR, we define a Guix [manifest](https://www.gnu.org/software/guix/manual/en/html_node/Invoking-guix-package.html#profile_002dmanifest) in `contrib/guix/manifest.scm`, which declares what packages we want in our environment. We can then invoke ``` guix environment --manifest=contrib/guix/manifest.scm --container --pure --no-grafts --no-substitutes ``` To have Guix: 1. Build an environment containing the packages we defined in our `contrib/guix/manifest.scm` manifest from the Guix bootstrap binaries (see [bootstrappability](https://www.gnu.org/software/guix/manual/en/html_node/Bootstrapping.html) for more details). 2. Start a container with that environment that has no network access, and no access to the host's filesystem except to the `pwd` that it was started in. 3. Drop you into a shell in that container. > Note: if you don't want to wait hours for Guix to build the entire world from scratch, you can eliminate the `--no-substitutes` option to have Guix download from available binary sources. Note that this convenience doesn't necessarily compromise your security, as you can check that a package was built correctly after the fact using `guix build --check <packagename>` Therefore, we can perform a build of bitcoin much like in Gitian by invoking the following: ``` make -C depends -j"$(nproc)" download && \ cat contrib/guix/build.sh | guix environment --manifest=contrib/guix/manifest.scm --container --pure --no-grafts --no-substitutes ``` We don't include `make -C depends -j"$(nproc)" download` inside `contrib/guix/build.sh` because `contrib/guix/build.sh` is run inside the container, which has no network access (which is a good thing). </details> ### Rationale I believe that this represents a substantial improvement for the "supply chain security" of bitcoin because: 1. We no longer have to rely on Ubuntu for our build environment for our releases ([oh the horror]( |