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Co-authored-by: Alex Wied <centromere@users.noreply.github.com>
Co-authored-by: Rok Garbas <rok@floxdev.com>
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Add links to API docs / coverage analysis to the hacking section
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Fix rendering of fetchGit documentation
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stripIndentation() doesn't support tabs, so the entire markdown ended
up indented and thus rendered as a code block.
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Fix misrendering of 'nix store --help'
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There are no categories underneath 'nix store', so having 'nix store
copy-log' in a category rendered as ':'.
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Open slave pseudoterminal before CLONE_NEWUSER
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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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Fix internal-api rendering in Hydra
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Currently it gives a 500 error with "Do not know how to serve path
'/nix/store/bym5sm8z2wpavnvzancb9gjdlgyzs1l8-nix-internal-api-docs-2.15.0pre20230320_e37f436/share/doc/nix/internal-api'."
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Add CONTRIBUTING.md
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docs: quote URL literals
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Fix build aarch64-darwin for static library
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Add a test with flake.nix in a git submodule
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I noticed a regression in the lazy-trees branch, which I'm trying to
capture with this test. While the tests succeeds in master, the
lazy-trees branch gives the following error message:
error: access to path
'/build/nix-test/tests/flakes/flake-in-submodule/rootRepo/submodule/flake.nix'
is forbidden because it is not under Git control; maybe you should
'git add' it to the repository
'/build/nix-test/tests/flakes/flake-in-submodule/rootRepo'?
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no-op refactor: extract outLink generation into a function
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Cleanup test skipping
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- Try not to put cryptic "99" in many places
Factor out `exit 99` into `skipTest` function
- Alows make sure skipping a test is done with a reason
`skipTest` takes a mandatory argument
- Separate pure conditionals vs side-effectful test skipping.
"require daemon" already had this, but "sandbox support" did not.
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Fix "unexpected EOF" errors on macOS
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LocalDerivationGoal: set NIX_ATTRS_*_FILE correctly for sandboxed builds
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Make command infra less stateful and more regular
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Already, we had classes like `BuiltPathsCommand` and `StorePathsCommand`
which provided alternative `run` virtual functions providing the
implementation with more arguments. This was a very nice and easy way to
make writing command; just fill in the virtual functions and it is
fairly clear what to do.
However, exception to this pattern were `Installable{,s}Command`. These
two classes instead just had a field where the installables would be
stored, and various side-effecting `prepare` and `load` machinery too
fill them in. Command would wish out those fields.
This isn't so clear to use.
What this commit does is make those command classes like the others,
with richer `run` functions.
Not only does this restore the pattern making commands easier to write,
it has a number of other benefits:
- `prepare` and `load` are gone entirely! One command just hands just
hands off to the next.
- `useDefaultInstallables` because `defaultInstallables`. This takes
over `prepare` for the one case that needs it, and provides enough
flexiblity to handle `nix repl`'s idiosyncratic migration.
- We can use `ref` instead of `std::shared_ptr`. The former must be
initialized (so it is like Rust's `Box` rather than `Option<Box>`,
This expresses the invariant that the installable are in fact
initialized much better.
This is possible because since we just have local variables not
fields, we can stop worrying about the not-yet-initialized case.
- Fewer lines of code! (Finally I have a large refactor that makes the
number go down not up...)
- `nix repl` is now implemented in a clearer way.
The last item deserves further mention. `nix repl` is not like the other
installable commands because instead working from once-loaded
installables, it needs to be able to load them again and again.
To properly support this, we make a new superclass
`RawInstallablesCommand`. This class has the argument parsing and
completion logic, but does *not* hand off parsed installables but
instead just the raw string arguments.
This is exactly what `nix repl` needs, and allows us to instead of
having the logic awkwardly split between `prepare`,
`useDefaultInstallables,` and `load`, have everything right next to each
other. I think this will enable future simplifications of that argument
defaulting logic, but I am saving those for a future PR --- best to keep
code motion and more complicated boolean expression rewriting separate
steps.
The "diagnostic ignored `-Woverloaded-virtual`" pragma helps because C++
doesn't like our many `run` methods. In our case, we don't mind the
shadowing it all --- it is *intentional* that the derived class only
provides a `run` method, and doesn't call any of the overridden `run`
methods.
Helps with https://github.com/NixOS/rfcs/pull/134
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nix-hash: support base-64 and SRI format
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Add the --base64 and --sri flags for the Base64 and SRI format output.
Add the --base16 flag to explicitly specify the hexadecimal format.
Add the --to-base64 and --to-sri flag to convert a hash to the above
mentioned format.
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respect allRefs=1 when using `nix flake prefetch`
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Do not rely on the "multiple format flag specified" behavior.
Explicitly test without the format flag / with the --base16 flag.
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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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add flake-compat to flake.nix and use sha256 in default.nix
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`print-dev-env`: stop inadvertently adding `.` to `PATH`
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add labeler workflow
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Fix macOS warning
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reword definition of "reference"
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add objectives and tasks for Nix team
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