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restoreMountNamespace(): Restore the original root directory
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src/libexpr/eval.hh: add link for allowed-uris option
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- Greatly expand API docs
- Clean up code in misc ways
- Instead of a complicated single loop on generations, do different
operations in successive subsequent steps.
- Avoid `ref` in one place where `&` is fine
- Just return path instead of mutating an argument in `makeName`
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
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This commit adds a link to the documentation for `--option
allowed-uris` where that option is mentioned while describing
`restrict-eval`.
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Tarball flake improvements
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Fix build hook error for libstore library users
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The code accidentally conflated `std::string::size_type` and `long unsigned int`.
This was fine on 64bits machines where they are apparently the same in
practice, but not on 32bits. Fix that by using `std::string::size_type`
everywhere.
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A library shouldn't require changes to the caller's argument handling,
especially if it doesn't have to, and indeed we don't have to.
This changes the lookup order to prioritize the hardcoded path to nix
if it exists. The static executable still finds itself through /proc
and the like.
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The option name is `allowed-uris`, not `allowed-uri`.
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Remove RegisterPrimOp constructor without support for documentation
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Introduce what substituters "are" in the configuration option entry.
Remove arbitrary line breaks for easier editing in the future.
Link glossary some more.
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: John Ericson <git@JohnEricson.me>
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The remaining constructor RegisterPrimOp::RegisterPrimOp(Info && info)
allows specifying the documentation in .args and .doc members of the
Info structure.
Commit 8ec1ba02109e removed all uses of the removed constructor in the
nix binary. Here, we remove the constructor completely as well as its
use in a plugin test. According to #8515, we didn't promis to maintain
compatibility with external plugins.
Fixes #8515
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fix: Do not apply default installables when using --stdin
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Document several undocumented builtin functions
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`filesystem.cc` is the only place where `createSymlink()` is used with three arguments:
in the definition of `replaceSymlink()` with three parameters that _is not used at all_.
Closes #8495
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Add `nix-channel --list-generations`
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fix the hash rewriting for ca-derivations
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Until now, these functions were completely missing in the Nix manual.
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
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Previously, for tarball flakes, we recorded the original URL of the
tarball flake, rather than the URL to which it ultimately
redirects. Thus, a flake URL like
http://example.org/patchelf-latest.tar that redirects to
http://example.org/patchelf-<revision>.tar was not really usable. We
couldn't record the redirected URL, because sites like GitHub redirect
to CDN URLs that we can't rely on to be stable.
So now we use the redirected URL only if the server returns the
`x-nix-is-immutable` or `x-amz-meta-nix-is-immutable` headers in its
response.
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Closes #8484.
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This will allow documenting them (in later commits).
Note that we keep the old constructor even if it is no longer used by
Nix code, because it is used in tests/plugins/plugintest.cc, which
suggests that it might be used by some external plugin.
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This is necessary when we're in a chroot environment, where the
process root is not the same as the root of the mount namespace
(e.g. in nixos-enter).
Fixes #7602.
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Currently `fromTOML` throws an exception when encountering a timestamp
since the Nix language lacks a way to represent them.
This patch changes this beaviour and makes `fromTOML` parse timestamps as
attrsets of the format
{ _type = "timestamp"; value = "1979-05-27T07:32:00Z"; }
This is guarded by an experimental feature flag to leave room for iterating on the representation.
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aneeshusa/remove-wrong-default-value-in-docs-for-hashed-mirrors
Remove old default from docs for `hashed-mirrors`
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Also set the PER_LINUX32 personality flag on armv5tel-linux
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Add missing <sys/select.h> include
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This fixes handling of symlinks that start with '..', and symlink
targets that contain symlinks themselves.
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`select()` may not be ambiently available for use on every platform
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* Document manual migration for use-xdg-base-directories
As there's currently no automatic migration for use-xdg-base-directories
option, add instructions for manual migration to the option's
description.
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
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Add support to --list-generations
as another way to say
nix-env --profile /nix/var/nix/profiles/per-user/$USER/channels --list-generations
the way we did for nix-channel --rollback [generation id]
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update documentation according to release notes
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document `builtins.currentTime`
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polykernel/perf/lazy-eval-replacements-replacestrings
primops: lazy evaluation of replaceStrings replacements
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Restore Nix 2.3 behaviour for {__impure,__contentAddressed} = false
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Properly report build errors on chrooted stores
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Fixes #8405.
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This does pathExists on various paths, which crashes on EPERM in the
macOS sandbox.
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And fix a test failure in the sandbox due to /home
existing on Darwin but not being accessible in the sandbox since it's a
symlink to /System/Volumes/Data/home, see
https://github.com/NixOS/nix/actions/runs/4205378453/jobs/7297384658#step:6:2127:
C++ exception with description "error: getting status of /home/schnitzel/darmstadt/pommes: Operation not permitted" thrown in the test body.
On Linux this wasn't a problem because there /home doesn't exist in the sandbox
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The primop `builtins.replaceStrings` currently always strictly evaluates the
replacement strings, however time and space are wasted for their computation
if the corresponding pattern do not occur in the input string. This commit
makes the evaluation of the replacement strings lazy by deferring their
evaluation to when the corresponding pattern are matched and memoize the result
for efficient retrieval on subsequent matches.
The testcases for replaceStrings was updated to check for lazy evaluation
of the replacements. A note was also added in the release notes to
document the behavior change.
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When encountering a build error, Nix moves the output paths out of the
chroot into their final location (for “easier debugging of build
failures”). However this was broken for chroot stores as it was moving
it to the _logical_ location, not the _physical_ one.
Fix it by moving to the physical (_real_) location.
Fix https://github.com/NixOS/nix/issues/8395
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The `hashed-mirrors` option did use to have this default value,
but it was removed and re-added with an empty default value.
As the autogenerated docs show the (actual) default values from code,
remove this incorrect reference from the docs.
I was updating my nix.conf settings after a few years and noticed this.
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