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release notes: 2.29.0
This commit is contained in:
John Ericson
parent
18894c934f
commit
d5e7359155
18 changed files with 156 additions and 155 deletions
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---
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synopsis: "C API: functions for locking and loading a flake"
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issues: 10435
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prs: [12877, 13098]
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---
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This release adds functions to the C API for handling the loading of flakes. Previously, this had to be worked around by using `builtins.getFlake`.
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C API consumers and language bindings now have access to basic locking functionality.
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It does not expose the full locking API, so that the implementation can evolve more freely.
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Locking is controlled with the functions, which cover the common use cases for consuming a flake:
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- `nix_flake_lock_flags_set_mode_check`
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- `nix_flake_lock_flags_set_mode_virtual`
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- `nix_flake_lock_flags_set_mode_write_as_needed`
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- `nix_flake_lock_flags_add_input_override`, which also enables `virtual`
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This change also introduces the new `nix-fetchers-c` library, whose single purpose for now is to manage the (`nix.conf`) settings for the built-in fetchers.
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More details can be found in the [C API documentation](@docroot@/c-api.md).
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---
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synopsis: "No longer copy flakes that are in the nix store"
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issues: 10435
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prs: [12877, 13098]
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---
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Previously, we would duplicate entries like `path:/nix/store/*` back into the Nix store.
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This was prominently visible for pinned system flake registry entries in NixOS, e.g., when running `nix run nixpkgs#hello`.
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---
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synopsis: "Consistently preserve error messages from cached evaluation"
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issues: [12762]
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prs: [12809]
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---
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In one code path, we are not returning the errors cached from prior evaluation, but instead throwing generic errors stemming from the lack of value (due to the error).
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These generic error messages were far less informative.
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Now we consistently return the original error message.
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---
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synopsis: "Faster blake3 hashing"
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issues:
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prs: [12676]
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---
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The implementation for blake3 hashing is now multi-threaded and used memory-mapped IO.
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Benchmark results can be found the [pull request](https://github.com/NixOS/nix/pull/12676).
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---
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synopsis: "Fix progress bar for S3 binary caches and make file transfers interruptible"
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issues: [12877, 13098]
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prs: [12538]
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---
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The progress bar now correctly display upload/download progress for S3 up/downloads. S3 uploads are now interruptible.
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---
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synopsis: "Add host attribute of github/gitlab flakerefs to URL serialization"
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issues:
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prs: [12580]
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---
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Resolved an issue where `github:` or `gitlab:` URLs lost their `host` attribute when written to a lockfile, resulting in invalid URLs.
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---
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synopsis: "Multiple signatures support in store urls"
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issues:
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prs: [12976]
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---
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Added support for a `secretKeyFiles` URI parameter in Nix store URIs, allowing multiple signing key files to be specified as a comma-separated list.
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This enables signing paths with multiple keys. This helps with [RFC #149](https://github.com/NixOS/rfcs/pull/149) to enable binary cache key rotation in the NixOS infra.
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Example usage:
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```bash
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nix copy --to "file:///tmp/store?secret-keys=/tmp/key1,/tmp/key2" \
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"$(nix build --print-out-paths nixpkgs#hello)"
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```
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---
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synopsis: "nix flake show now skips over import-from-derivation"
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issues: 4265
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prs: [12583]
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---
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Previously, if a flake contained outputs relying on [import from derivation](@docroot@/language/import-from-derivation.md) during evaluation, `nix flake show` would fail to display the rest of the flake. The updated behavior skips such outputs, allowing the rest of the flake to be shown.
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---
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synopsis: "Add `nix formatter build` and `nix formatter run` commands"
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issues:
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prs: [13063]
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---
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`nix formatter run` is an alias for `nix fmt`. Nothing new there.
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`nix formatter build` is sort of like `nix build`: it builds, links, and prints a path to the formatter program:
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```
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$ nix formatter build
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/nix/store/cb9w44vkhk2x4adfxwgdkkf5gjmm856j-treefmt/bin/treefmt
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```
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Note that unlike `nix build`, this prints the full path to the program, not just the store path (in the example above that would be `/nix/store/cb9w44vkhk2x4adfxwgdkkf5gjmm856j-treefmt`).
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---
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synopsis: "Amend OSC 8 escape stripping for xterm-style separator"
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issues:
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prs: [13109]
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---
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Improve terminal escape code filtering to understand a second type of hyperlink escape codes.
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This in particular prevents parts of GCC 14's diagnostics from being improperly filtered away.
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---
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synopsis: "Prettified JSON output on the terminal"
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issues: 12555
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prs: [12652]
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---
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This makes the output easier to read.
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Scripts are mostly unaffected because for those, stdout will be a file or a pipe, not a terminal, and for those, the old single-line behavior applies.
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`--json --pretty` can be passed to enable it even if the output is not a terminal.
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If your script creates a pseudoterminal for Nix's stdout, you can pass `--no-pretty` to disable the new behavior.
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---
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synopsis: "Repl: improve continuation prompt for incomplete expressions"
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issues:
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prs: [12846]
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---
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Improved REPL user experience by updating the continuation prompt from invisible blank spaces to a visible `" > "`, enhancing clarity when entering multi-line expressions.
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---
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synopsis: "REPL `:load-flake` and `:reload` now work together"
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issues: [8753]
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prs: [13180]
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---
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Previously, `:reload` only reloaded the files specified with `:load` (or on the command line).
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Now, it also works with the flakes specified with `:load-flake` (or on the command line).
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This makes it correctly reload everything that was previously loaded, regardless of what sort of thing (plain file or flake) each item is.
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---
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synopsis: "Increase retry delays on HTTP 429 Too Many Requests"
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issues:
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prs: [13052]
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---
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When downloading Nix, the retry delay was previously set to 0.25 seconds. It has now been increased to 1 minute to better handle transient CI errors, particularly on GitHub.
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---
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synopsis: "S3: opt-in the STSProfileCredentialsProvider"
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issues:
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prs: [12646]
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---
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Added support for STS-based authentication for S3-based binary caches, i.e. enabling seamless integration with `aws sso login`.
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---
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synopsis: "Reduce connect timeout for http substituter"
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issues:
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prs: [12876]
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---
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Previously, the Nix setting `connect-timeout` had no limit. It is now set to `5s`, offering a more practical default for users self-hosting binary caches, which may occasionally become unavailable, such as during updates.
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