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This transparently supports curing foreign exec artifacts.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This needs to dereference the identifier symlink.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This avoids a deadlock on an early container failure.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This significantly reduces maintenance burden.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This significantly improves readability and maintainability.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This flag applies to every exec artifact cured by the cache. It has no effect on cure outcome.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This works around the page size limit at the cost of negligible performance regressions.
Closes #34.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This makes custom artifacts much less error-prone to use.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This avoids disabling the artifact when using the individual cancel method. Unfortunately this makes the method blocking.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This significantly simplifies synchronisation of access to identErr.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This avoids disabling the artifact until cache is reopened. The same has to be implemented for Cancel in a future change.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This cancels all current pending cures without closing the cache.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This enables a specific artifact to be targeted for cancellation.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These are memory management and caching primitives. Having them as part of Cache is cumbersome and requires a temporary directory that is never used. This change isolates them from Cache to enable independent use.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This exposes preferred job count to the container initial process.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is cleaner than checking cpu count during cure, it is impossible to avoid impurity in both situations but this is configurable.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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XZ happens to be the only widely-used format that is awful to deal with, everything else is natively supported.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is not possible to use directly, so remove it from the public API.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This enables transparently degradable tests to be forced on in environments known to support them.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This does not test package container, so should transparently cope with Landlock LSM being unavailable.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The alpine linux riscv64 kernel does not enable Landlock LSM, and kernel compilation is not yet feasible.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is quite error-prone and causes cache inconsistency similar to the store inconsistency seen on nix when a similar condition happens. Keep this behind a flag in case it is ever beneficial.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is cleaner than setting it globally, and is impossible to race.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is cleaner for extending the API.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This improves behaviour of some programs.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This causes the kernel to regenerate events that happened before earlyinit started.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This makes package check portable, and removes nonportable behaviour from package pkg, pipewire, and system. All other packages remain nonportable due to their nature. No latency increase was observed due to this change on amd64 and arm64 linux.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This enables much easier troubleshooting of failing cures.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This was moved from internal/rosa because it is considered generally useful.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This enables exporting container params for interactive troubleshooting within the cure container.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This package solves a very specific stubbing use case, in a less than elegant manner.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This package is not container-specific.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This package is not container specific, and widely used across the project.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This package is not container-specific.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These are too general to belong in the container package. This targets the v0.4 release to reduce the wrapper maintenance burden.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The more explicit API removes the arbitrary limit preventing use of SCHED_OTHER (referred to as SCHED_NORMAL in the kernel). This change also exposes priority value to set.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This avoids depending on cgo.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This also uses priority obtained via sched_get_priority_min, and improves bounds checking.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This side is the read end of a pipe and buffering reads from it ended up performing better than buffering one half of the TeeReader (which already goes through the kernel page cache anyway).
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is useful for external tooling.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These cause build to fail to start.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This fixes a use-after-free.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This avoids filtering some unrelated os.ErrExist.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is currently only used by execArtifact. A later patch will add additional logging facilities.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This avoids discarding output thus appearing unresponsive.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is not as necessary as it was for nix, since internal/pkg only unblocks exclusive artifacts one at a time. Still, this is useful when running alongside an unprivileged music player which cannot set itself to a higher priority.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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A string holds "current" hakurei source code. For now the compressed tarball is 4.9 MiB long.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is a useful helper for external tooling.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is useful for external tooling providing an execArtifact-like environment.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This got brought up earlier today as a potential optimisation. This change documents why it is not viable, and hopefully clears up some performance implications of using IRDecoder, namely that its decoding costs do not amortise.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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