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The internal API docs now contain more useful information.
Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
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Auto-generate store documentation
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Fix root channels location
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Add a setting for configuring the SSL certificates file
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Hide experimental settings
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These are proper documentation of the API, so they deserve to be here
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Make sure that all the code paths use the same one, and that the
backwards-compatibility measures are probably in place when needed
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Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
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Why not 'nix help stores'? Well, 'nix help <arg>' already means 'show
help on the "arg" subcommand'.
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Otherwise, when running as root and user namespaces are enabled,
opening the slave fails with EPERM.
Fixes "opening pseudoterminal slave: Permission denied" followed by a
hang (https://hydra.nixos.org/build/213104244), and "error: getting
sandbox mount namespace: No such file or directory" (#8072), which
happens when the child fails very quickly and consequently reading
/proc/<child>/ns fails.
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This is needed in subsequent commits to allow the settings and CLI args
infrastructure itself to read this setting.
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This provides a platform-independent way to configure the SSL
certificates file in the Nix daemon. Previously we provided
instructions for overriding the environment variable in launchd, but
that obviously doesn't work with systemd. Now we can just tell users
to add
ssl-cert-file = /etc/ssl/my-certificate-bundle.crt
to their nix.conf.
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Fix "unexpected EOF" errors on macOS
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Hopefully this fixes "unexpected EOF" failures on macOS
(#3137, #3605, #7242, #7702).
The problem appears to be that under some circumstances, macOS
discards the output written to the slave side of the
pseudoterminal. Hence the parent never sees the "sandbox initialized"
message from the child, even though it succeeded. The conditions are:
* The child finishes very quickly. That's why this bug is likely to
trigger in nix-env tests, since that uses a builtin builder. Adding
a short sleep before the child exits makes the problem go away.
* The parent has closed its duplicate of the slave file
descriptor. This shouldn't matter, since the child has a duplicate
as well, but it does. E.g. moving the close to the bottom of
startBuilder() makes the problem go away. However, that's not a
solution because it would make Nix hang if the child dies before
sending the "sandbox initialized" message.
* The system is under high load. E.g. "make installcheck -j16" makes
the issue pretty reproducible, while it's very rare under "make
installcheck -j1".
As a fix/workaround, we now open the pseudoterminal slave in the
child, rather than the parent. This removes the second condition
(i.e. the parent no longer needs to close the slave fd) and I haven't
been able to reproduce the "unexpected EOF" with this.
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Display progress when running copyPaths (nix copy)
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I saw this random failure in https://hydra.nixos.org/build/211811692:
error: opening /proc/15307/fd: No such process
while running nix-collect-garbage in a readfile-context.sh. This is
because we're not handling ESRCH errors reading /proc/<pid>/fd. So
just move the read inside the try/catch where we do handle it.
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`nix copy` operations did not show progress. This is quite confusing.
Add a `progressSink` which displays the progress during `copyPaths`,
pretty much copied from `copyStorePath`.
Fixes https://github.com/NixOS/nix/issues/8000
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The curl download can outlive DrvOutputSubstitutionGoal (if some other
error occurs), so at shutdown setting the promise to an exception will
fail because 'this' is no longer valid in the callback. This can
manifest itself as a segfault, "corrupted double-linked list" or hang.
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treat empty NIX_STORE_DIR env vars as unset
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Remove FormatOrString and remaining uses of format()
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Don't show the users the raw (possibly compressed) error message as
everyone isn't able to decompress brotli in their brain.
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Always set valid in path-info --json output
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We make sure the env var paths are actually set (ie. not "") before
sending them to the canonicalization function. If we forget to do so,
the user will end up facing a puzzled failed assertion internal error.
We issue a non-failing warning as a stop-gap measure. We could want to
revisit this to issue a detailed failing error message in the future.
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It has been dead code since 9747ea84b43c75f719d719673b9d0a7cb50d34e5.
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bobvanderlinden/pr-improve-nix-profile-install-error
Improve error on conflict for nix profile install
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Currently the valid key is only present when the path is invalid, which
makes checking path validity more complex than it should be. With this
change, the valid key can always be used to check if a path is valid
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Check interrupts even when download stalled
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At the moment an Error is thrown that only holds an error message
regarding `nix-env` and `nix profile`. These tools make use of
builtins.buildEnv, but buildEnv is also used in other places. These
places are unrelated to Nix profiles, so the error shouldn't mention
these tools.
This generic error is now BuildEnvFileConflictError, which holds more
contextual information about the files that were conflicting while
building the environment.
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add a warning that you probably never want to change this.
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Wait with making /etc unwritable until after build env setup
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When I moved this code from the binary to libnixstore #7863, I forgot to
display the environment variables!
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