mirror of
https://github.com/NixOS/nix.git
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197 lines
4.6 KiB
Markdown
197 lines
4.6 KiB
Markdown
# Nix release process
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## Release artifacts
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The release process is intended to create the following for each
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release:
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* A Git tag
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* Binary tarballs in https://releases.nixos.org/?prefix=nix/
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* Docker images
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* Closures in https://cache.nixos.org
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* (Optionally) Updated `fallback-paths.nix` in Nixpkgs
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* An updated manual on https://nixos.org/manual/nix/stable/
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## Creating a new release from the `master` branch
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* Make sure that the [Hydra `master` jobset](https://hydra.nixos.org/jobset/nix/master) succeeds.
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* In a checkout of the Nix repo, make sure you're on `master` and run
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`git pull`.
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* Compile the release notes by running
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```console
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$ git checkout -b release-notes
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$ VERSION=X.YY ./maintainers/release-notes
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```
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where `X.YY` is *without* the patch level, e.g. `2.12` rather than ~~`2.12.0`~~.
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A commit is created.
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* Proof-read / edit / rearrange the release notes if needed. Breaking changes
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and highlights should go to the top.
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* Push.
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```console
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$ git push --set-upstream $REMOTE release-notes
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```
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* Create a PR for `release-notes`.
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* Wait for the PR to be merged.
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* Create a branch for the release:
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```console
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$ git checkout master
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$ git pull
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$ git checkout -b $VERSION-maintenance
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```
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* Mark the release as official:
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```console
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$ sed -e 's/officialRelease = false;/officialRelease = true;/' -i flake.nix
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```
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This removes the link to `rl-next.md` from the manual and sets
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`officialRelease = true` in `flake.nix`.
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* Commit
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* Push the release branch:
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```console
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$ git push --set-upstream origin $VERSION-maintenance
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```
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* Create a jobset for the release branch on Hydra as follows:
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* Go to the jobset of the previous release
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(e.g. https://hydra.nixos.org/jobset/nix/maintenance-2.11).
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* Select `Actions -> Clone this jobset`.
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* Set identifier to `maintenance-$VERSION`.
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* Set description to `$VERSION release branch`.
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* Set flake URL to `github:NixOS/nix/$VERSION-maintenance`.
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* Hit `Create jobset`.
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* Wait for the new jobset to evaluate and build. If impatient, go to
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the evaluation and select `Actions -> Bump builds to front of
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queue`.
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* When the jobset evaluation has succeeded building, take note of the
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evaluation ID (e.g. `1780832` in
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`https://hydra.nixos.org/eval/1780832`).
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* Tag the release and upload the release artifacts to
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[`releases.nixos.org`](https://releases.nixos.org/) and [Docker Hub](https://hub.docker.com/):
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```console
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$ IS_LATEST=1 ./maintainers/upload-release.pl <EVAL-ID>
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```
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Note: `IS_LATEST=1` causes the `latest-release` branch to be
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force-updated. This is used by the `nixos.org` website to get the
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[latest Nix manual](https://nixos.org/manual/nixpkgs/unstable/).
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TODO: This script requires the right AWS credentials. Document.
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TODO: This script currently requires a
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`/home/eelco/Dev/nix-pristine`.
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TODO: trigger nixos.org netlify: https://docs.netlify.com/configure-builds/build-hooks/
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* Prepare for the next point release by editing `.version` to
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e.g.
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```console
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$ echo 2.12.1 > .version
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$ git commit -a -m 'Bump version'
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$ git push
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```
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Commit and push this to the maintenance branch.
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* Bump the version of `master`:
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```console
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$ git checkout master
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$ git pull
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$ NEW_VERSION=2.13.0
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$ echo $NEW_VERSION > .version
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$ git checkout -b bump-$NEW_VERSION
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$ git commit -a -m 'Bump version'
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$ git push --set-upstream origin bump-$NEW_VERSION
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```
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Make a pull request and auto-merge it.
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* Create a milestone for the next release, move all unresolved issues
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from the previous milestone, and close the previous milestone. Set
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the date for the next milestone 6 weeks from now.
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* Create a backport label.
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* Post an [announcement on Discourse](https://discourse.nixos.org/c/announcements/8), including the contents of
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`rl-$VERSION.md`.
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## Creating a point release
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* Checkout.
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```console
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$ git checkout XX.YY-maintenance
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```
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* Determine the next patch version.
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```console
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$ export VERSION=XX.YY.ZZ
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```
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* Update release notes.
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```console
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$ ./maintainers/release-notes
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```
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* Push.
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```console
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$ git push
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```
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* Wait for the desired evaluation of the maintenance jobset to finish
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building.
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* Run
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```console
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$ IS_LATEST=1 ./maintainers/upload-release.pl <EVAL-ID>
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```
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Omit `IS_LATEST=1` when creating a point release that is not on the
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most recent stable branch. This prevents `nixos.org` to going back
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to an older release.
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* Bump the version number of the release branch as above (e.g. to
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`2.12.2`).
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## Recovering from mistakes
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`upload-release.pl` should be idempotent. For instance a wrong `IS_LATEST` value can be fixed that way, by running the script on the actual latest release.
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