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This makes all config options self-documenting.
Unknown or unparseable config settings and --option flags now cause a
warning.
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Somehow this came back after d1da6967b8891763ce04d668027cf300c9bbf0b2.
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Fixes #1283.
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Also get rid of Settings::processEnvironment(), it appears to be
useless.
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This reverts commit f78126bfd6b6c8477fcdbc09b2f98772dbe9a1e7. There
really is no need for such a massive change...
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This restores the Nix 1.11 behaviour.
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Caching path info is generally useful. For instance, it speeds up "nix
path-info -rS /run/current-system" (i.e. showing the closure sizes of
all paths in the closure of the current system) from 5.6s to 0.15s.
This also eliminates some APIs like Store::queryDeriver() and
Store::queryReferences().
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Manifests have been superseded by binary caches for years. This also
gets rid of nix-pull, nix-generate-patches and bsdiff/bspatch.
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This enables an optimisation in hydra-queue-runner, preventing a
download of a NAR it just uploaded to the cache when reading files
like hydra-build-products.
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This is currently only used by the Hydra queue runner rework, but like
eff5021eaa6dc69f65ea1a8abe8f3ab11ef5eb0a it presumably will be useful
for the C++ rewrite of nix-push and
download-from-binary-cache. (@shlevy)
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http://hydra.nixos.org/build/32005971
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Calling a class an API is a bit redundant...
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Also, move a few free-standing functions into StoreAPI and Derivation.
Also, introduce a non-nullable smart pointer, ref<T>, which is just a
wrapper around std::shared_ptr ensuring that the pointer is never
null. (For reference-counted values, this is better than passing a
"T&", because the latter doesn't maintain the refcount. Usually, the
caller will have a shared_ptr keeping the value alive, but that's not
always the case, e.g., when passing a reference to a std::thread via
std::bind.)
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Detected by -Werror=format-security.
http://hydra.nixos.org/build/29973207
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Needed by Hydra.
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This is not strictly needed for integrity (since we already include
the NAR hash in the fingerprint) but it helps against endless data
attacks [1]. (However, this will also require
download-from-binary-cache.pl to bail out if it receives more than the
specified number of bytes.)
[1] https://isis.poly.edu/~jcappos/papers/cappos_mirror_ccs_08.pdf
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We only need to sign the store path, NAR hash and references (the
"fingerprint"). Everything else is irrelevant to security. For
instance, the compression algorithm or the hash of the compressed NAR
don't matter as long as the contents of the uncompressed NAR are
correct.
(Maybe we should include derivers in the fingerprint, but they're
broken and nobody cares about them. Also, it might be nice in the
future if .narinfos contained signatures from multiple independent
signers. But that's impossible if the deriver is included in the
fingerprint, since everybody will tend to have a different deriver for
the same store path.)
Also renamed the "Signature" field to "Sig" since the format changed
in an incompatible way.
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Sodium's Ed25519 signatures are much shorter than OpenSSL's RSA
signatures. Public keys are also much shorter, so they're now
specified directly in the nix.conf option ‘binary-cache-public-keys’.
The new command ‘nix-store --generate-binary-cache-key’ generates and
prints a public and secret key.
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Spotted by Perl 5.20:
Possible precedence issue with control flow operator at /usr/lib/perl5/site_perl/5.20.1/x86_64-linux-gnu-thread-multi/Nix/Utils.pm line 46.
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"got EOF while expecting 8 bytes from remote side" is not very
helpful.
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Closes #300.
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Issue #346.
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These are too difficult to implement via nix-store --serve.
‘--show-progress’ could be re-implemented fairly easily via a
sink/source wrapper class.
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Closes #302.
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