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This is always required by the implementation.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is primarily useful for implementing a mirror service. This change also works around the zero-dependency FloodArtifact edge case.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This avoids running into nasty surprises opening a cache that suffered unclean shutdown due to power loss. All other parts of the cache are not prone to inconsistent state.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The tarArtifact predates FileArtifact pipelining. This migrates decompression and buffering into a standalone artifact implementation.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These names are more consistent with other helper names, so rename them while the API is still internal.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Scrubbing for status predates substitutes. This change fixes scrub handling of substitute status entries.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This destroys cache entries not referred to by user-specified artifacts and optionally their inputs.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This relies on the testtool having ident as relevant input to assert successful substitution.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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While it is still impossible to reliably determine the expected contents of these status files, this checks their nature for expected substitution behaviour.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This would otherwise only be available in verbose output, interleaved with everything else.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These are useful for troubleshooting. This change records them in a separate directory.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These are not created when taking the fast path, but should be inherited from the alternative.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This eliminates edge cases where target artifacts do not compare equal.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This eliminates noise at lower depths.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is significantly slower but enables much better error reporting.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This error has never had decent performance, now is a good time to improve that.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change introduces a new fast path for FloodArtifact. It is taken when a curing artifact has identical-by-content controlled relevant inputs and are otherwise identical to an already-cured artifact.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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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 significantly improves readability and maintainability.
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 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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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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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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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 for extending the API.
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 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 should hopefully provide good separation between the artifact curing backend implementation and the (still work in progress) language. Making the IR parseable also guarantees uniqueness of the representation.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This was taking way too long for early failures.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This also rearranges the ident ir to be more predictable, and avoids an obvious and somewhat easy to get into inconsistent state.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This alleviates scheduler overhead when curing many artifacts.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This uses the new measured reader provided by Cache. This should make httpArtifact zero-copy.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This will be fully implemented in httpArtifact in a future commit.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This avoids blocking while not in Cure method of the implementation.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This enables deduplication by value as implemented in execArtifact.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This significantly simplifies error reporting for caller.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Any fine-grained file-based locking here significantly hurts performance and is not part of the use case of the package. This change guarantees exclusive access to prevent inconsistent state on the filesystem.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This significantly improves scrubbing performance. Since the cache directory structure is friendly to simultaneous access, this is possible without synchronisation.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This eliminates duplicate identifier computations. The new implementation also significantly reduces allocations while computing identifier for a large dependency tree.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These are generally for generating configuration files or build scripts, naming them is quite useful.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This removes the left over embedded contexts.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This imposes a hard upper limit to concurrency during dependency satisfaction and moves all dependency-related code out of individual implementations of Artifact. This change also includes ctx and msg as part of Cache.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows tar to take a single-file directory Artifact as input.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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