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E.g.
$ time nix cat-store --store https://cache.nixos.org?local-nar-cache=/tmp/nars \
/nix/store/b0w2hafndl09h64fhb86kw6bmhbmnpm1-blender-2.79/share/icons/hicolor/scalable/apps/blender.svg > /dev/null
real 0m4.139s
$ time nix cat-store --store https://cache.nixos.org?local-nar-cache=/tmp/nars \
/nix/store/b0w2hafndl09h64fhb86kw6bmhbmnpm1-blender-2.79/share/icons/hicolor/scalable/apps/blender.svg > /dev/null
real 0m0.024s
(Before, the second call took ~0.220s.)
This will use a NAR listing in
/tmp/nars/b0w2hafndl09h64fhb86kw6bmhbmnpm1.ls containing all metadata,
including the offsets of regular files inside the NAR. Thus, we don't
need to read the entire NAR. (We do read the entire listing, but
that's generally pretty small. We could use a SQLite DB by borrowing
some more code from nixos-channel-scripts/file-cache.hh.)
This is primarily useful when Hydra is serving files from an S3 binary
cache, in particular when you have giant NARs. E.g. we had some 12 GiB
NARs, so accessing individuals files was pretty slow.
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E.g.
$ nix ls-store --json --recursive --store https://cache.nixos.org /nix/store/b0w2hafndl09h64fhb86kw6bmhbmnpm1-blender-2.79 \
| jq .entries.bin.entries.blender.narOffset
400
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ssh-store: fix length when writing nar
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This fixes nix copy and other things that use copyStorePath.
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Fix "Unexpected EOF reading a line" error
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propagated-user-env-packages files in nixpkgs aren't all terminated by
newlines, as buildenv expected. Now it does not require a terminating
newline; note that this introduces a behaviour change: propagated user
env packages may now be spread across multiple lines. However, nix
1.11.x still expects them to be on a single line so this shouldn't be
used in nixpkgs for now.
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build-remote: Fix missing log output
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The storeUri variable in the build-remote hook is declared very much to
the start of the main function and a bunch of lines later, the same
variable gets checked via hasPrefix() but it gets assigned *after* that
check when the most suitable machine for the build was choosen.
So I guess this was just a typo in d16fd2497374671c92cb877f9570d65783a7
and what we really want is to either checkd the prefix *after* assigning
storeUri or use bestMachine->storeUri directly.
I choose the latter, because the former could introduce even more
regressions if the try block where the variable gets assigned terminates
early.
Nevertheless, the reason why the log output didn't work is because
hasPrefix() checked for "ssh://" in front of storeUri, but if the
storeUri isn't set correctly (or at all), we don't get the log file
descriptor set up properly, leading to no log output.
I've adjusted the remote-builds test to include a regression test for
this, so that we can make sure we get a build output when using remote
builds.
In addition to that I've tested this with two of my build farms and the
build logs are emitted correctly again.
Signed-off-by: aszlig <aszlig@nix.build>
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Fixes #1663.
Also handle '!<output-name>' (#1694).
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Fixes #1697.
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https://hydra.nixos.org/build/64519355
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E.g. the existence of .gitignore would cause .git to be included.
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These don't require signatures.
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Thus,
$ nix eval --raw '("foo")'
foo
$ nix eval --raw nixpkgs.hello
/nix/store/1y6ckg6khrdsvll54s5spcmf3w6ka9k4-hello-2.10
$ nix eval --raw '(/etc/resolv.conf)'
/nix/store/vml92ama92i8mz013nny461mlvg8mvap-resolv.conf
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Parenthetical to #1686, we don't need to create a new root if we can
just bind-mount on top of the existing /nix/store.
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Fixes #1686.
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Unlike signed-binary-caches (which could only be '*' or ''),
require-sigs is a proper Boolean option. The default is true.
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The name had become a misnomer since it's not only for substitution
from binary caches, but when adding/copying any
(non-content-addressed) path to a store.
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Fix (highly unlikely) race condition in readLink
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This allows specifying the AWS configuration profile to use. E.g.
nix copy --from s3://my-cache?profile=aws-dev-account /nix/store/cf3isrlqavvd5w7rpky1fa8j9lcnlggm-...
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anchor nix::Exit exception
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This reverts commit f90f660b243866b8860eeb24cc4a345d32cc7ce7.
This broke Hydra's release.nix, which contained
preCheck = ''export LOGNAME=${LOGNAME:-foo}'';
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