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Previously, the garbage collector found runtime roots on Darwin by
shelling out to `lsof -n -w -F n` then parsing the result.
However, this requires an lsof binary and can be extremely slow.
The official Apple lsof returns in a reasonable amount of time,
about 250ms in my tests, but the lsof packaged in nixpkgs is quite slow,
taking about 40 seconds to run the command.
Using libproc directly is about the same speed as Apple lsof,
and allows us to reënable several tests that were disabled on Darwin.
Change-Id: Ifa0adda7984e13c15535693baba835aae79a3577
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just accumulate error data into result.data as we would for successful
transfers without a dataCallback. errorSink and data would contain the
same data in error cases anyway, so splitting them is not very useful.
Change-Id: I00e449866454389ac6a564ab411c903fd357dabf
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this was broken in 75b62e52600a44b42693944b50638bf580a2c86e.
Change-Id: If8583e802afbcde822623036bf41a9708fbc7c8d
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this is never read.
Change-Id: I4c46f140519843a21e452958900e81edd2f78be2
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This creates new subclasses of LocalStore for each OS to include
platform-specific functionality. Currently this just includes garbage
collector roots but it could be extended to sandboxing as well.
In order to make sure that the generic LocalStore is not accidentally
constructed, its constructor is protected. A Fallback is provided which
implements no functionality except constructors.
Change-Id: I836a28e90b68309873f75afb83e0f1b2e2c89fb3
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* changes:
meson: flip the switch!!
meson: fix cross compilation
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This should fix cross compilation in the base case, but this is
difficult to test as cross compilation is broken in many different
places right now. This should bring Meson back up to cross parity with
the Make buildsystem though.
Change-Id: If09be8142d1fc975a82b994143ff35be1297dad8
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don't reimplement header parsing. this was only really needed due to the
ancient github bug we no longer care about, everything else we have done
in custom code can also be done using curl itself. doing this also fixes
possible sources of header smuggling (because the header function didn't
unfold headers and we'd trim them before parsing, which would've made us
read contents of one header as a fully formed header in itself). this is
a slight behavior change because we now honor only the first instance of
a given header where previous behavior was to honor either the last or a
combination of all of them (accept-ranges was logical-or'd by accident).
Change-Id: I93cb93ddb91ab98c8991f846014926f6ef039fdb
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this was a workaround for a *github* bug that happend *in 2015*.
not only is github no longer buggy, it shouldn't have been nix's
responsibility to work around these bugs like this to begin with
while we're at it we'll also remove another workaround—again for
github specifically and again for etag handling—from 2021 that's
also not needed any more. future workarounds for serverside bugs
should probably come with an expiration date that mutates into a
build warning after a while, otherwise this *will* happen again.
Change-Id: I74f739ae3e36d40350f78bebcb5869aa8cc9adcd
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the previous solution to the wakeup problem (adding a pipe and passing
it as an additional fd to curl_multi_wait) worked, but there have been
builtin alternatives for this since 2020. not only do these save code,
they're also a lot more likely to work natively on windows when needed
Change-Id: Iab751b900997110a8d15de45ea3ab0c42f7e5973
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the oldest version checked for here is 7.47, which was released in
2016. it's probably safe to say that we do not need these any more
Change-Id: I003411f6b2ce6d56f7ca337390df3ea86bd59a99
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With Nix 2.3, it was possible to pass a subpath of a store path to
exportReferencesGraph:
with import <nixpkgs> {};
let
hello = writeShellScriptBin "hello" ''
echo ${toString builtins.currentTime}
'';
in
writeClosure [ "${hello}/bin/hello" ]
This regressed with Nix 2.4, with a very confusing error message, that
presumably indicates it was unintentional:
error: path '/nix/store/3gl7kgjr4pwf03f0x70dgx9ln3bhl7zc-hello/bin/hello' is not in the Nix store
(cherry picked from commit 0774e8ba33c060f56bad3ff696796028249e915a)
Change-Id: I00920fb33077b831a1bb4a1b68d515ba8c3c2a69
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Change-Id: I2f6c0d42245204a516d2e424eea26a6391e975ad
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The statically embedded busybox is not required for Lix to work, but
package.nix explicitly sets this, which was accidentally being ignored.
Change-Id: Ieeff830ac7d1f5fabe84d1a6cfd82f13d79035bf
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Either the contents of `line` could cause format errors, or this usage
is Technically safe. However, I trust nothing, especially with
boost::format.
Change-Id: I07933b20bde3b305a6e5d61c2a7bab6ecb042ad9
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Change-Id: I711f64e2b68495ed9c85c1a4bd5025405805e43a
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Previously if isStorePath() was called on anything other than a
top-level /nix/store/some-path, it would throw a BadStorePath exception.
This commit duplicates the absolutely trivial check, into
maybeParseStorePath(), and leaves exception throwing to
parseStorePath(), the function that assumes you're already giving a
valid path instead of the one whose purpose is to check if its valid or
not...
Change-Id: I8dda548f0f88d14ca8c3ee927d64e0ec0681fc7b
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Saves us a bunch of thinking about how to handle symlinks, and prevents
the DNS config from changing on the fly under the build, which may or may
not be a good thing?
Change-Id: I071e6ae7e220884690b788d94f480866f428db71
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Fix adding symlink to the sandbox paths
(cherry-picked from commit da1e977bf48cff2a635034c85e7c13878e38efc2)
Change-Id: I221c85a38180800ec6552d2e86a88df48398fad8
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Factor out `nix::maybeLstat`
(cherry-picked from commit 9b88e5284608116b7db0dbd3d5dd7a33b90d52d7)
Change-Id: Id890525e847c890fad6593c594772826ac4d1d50
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this should be a link, not an anchor. it should also point to the
`gloss-store` element, not the `#gloss-store` element.
Change-Id: I1f2803093179549637e10f917ad73399a419131b
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Instead of $sysconfdir.
Fixes #231, but there's more to do in following commits to make
Meson-built Lix actually look in /etc/nix.
Change-Id: Ia8d627070f405843add46e05cff5134b76b8eb48
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Change-Id: Ia1a72348336794b5fb9f2694dd750266089b904e
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This reverts commit 792844fb861ea7367ac2316c78fec055363f2f9e.
Change-Id: I3ca208b62edfd5cd1199478f75cd2edf19a364f6
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This reverts commit 87249eb579bf57f4f09e9fca100588a4d6b90b4c.
Change-Id: Ide4c6e00c4155216a17e46671ff47151d7bb85b4
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This reverts commit 491caad6f62c21ffbcdebe662e63ec0f72e6f3a2.
this is not actually legal for nix! throwing exceptions in destructors
is fine, but the way nix is set up we'll end up throwing the exception
we received from the remote *twice* in some cases, and such cases will
cause an immediate terminate without active exception.
Change-Id: I74c46b9f26fd791086e4193ec60eb1deb9a5bb2a
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This reverts commit 1340807e30dba4b3972c31f02861bbaeaeb60e61.
Change-Id: I34d2a80eb3c3e9d79cb02b92cd1189da32d18cb6
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setting this only on exceptions caused by actual fd access is not
sufficient to diagnose all errors (such as SerialisationError) in
some cases. this usually does not have any negative effects since
those errors will end up killing the process in another way. this
is not a reliable assumption though and we should be using proper
error handling (and closing connections more often, preferring to
close over keeping something open that might be in a weird state)
Change-Id: I1b792cd7ad8ba9ff0f6bd174945ab2575ff2208e
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* changes:
Make things that can throw not noexcept anymore
Fix various clang-tidy lints
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the duplication of exception handling was added without justification,
so we can only assume that it was done like this because Finally could
not throw exceptions safely. since this has now been rectified we will
deduplicate this handler code again.
Change-Id: I40721f3378c0fd9f34e2914a16d383f6e2713b40
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usage of this flag previously kept connections open much longer than
necessary, and at the same time obscured that a connection was being
dropped when it *was* set. new variable names clarify this somewhat.
Change-Id: I11f6f08f37a5e4dc04ea6c6036ea589154b121c6
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it was used incorrectly (not swapped on handle move), only used in one
place (that is now handled with exception handling detection in Handle
itself), and if ever reintroduced should be replaced with a different,
more understandable mechanism (like an explicit dropAsInvalid method).
Change-Id: Ie3e5d5cfa81d335429cb2ee5c3ad85c74a9df17b
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this was never actually used, and bad design in the first place—why
should a bad resource be put back into the idle pool? just drop it.
Change-Id: Idab8774bee19dadae0209d404c4fb86dd4aeba1e
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The big ones here are `trim-trailing-whitespace` and `end-of-file-fixer`
(which makes sure that every file ends with exactly one newline
character).
Change-Id: Idca73b640883188f068f9903e013cf0d82aa1123
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This does involve making a large number of destructors able to throw,
because we had to change it high in the class hierarchy. Oh well.
Change-Id: Ib62d3d6895b755f20322bb8acc9bf43daf0174b2
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* some things that can throw are marked noexcept
yet the linter seems to think not. Maybe they can't throw in practice.
I would rather not have the UB possibility in pretty obvious cold
paths.
* various default-case-missing complaints
* a fair pile of casts from integer to character, which are in fact
deliberate.
* an instance of <https://clang.llvm.org/extra/clang-tidy/checks/bugprone/move-forwarding-reference.html>
* bugprone-not-null-terminated-result on handing a string to curl in
chunks of bytes. our usage is fine.
* reassigning a unique_ptr by CRIMES instead of using release(), then
using release() and ignoring the result. wild. let's use release() for
its intended purpose.
Change-Id: Ic3e7affef12383576213a8a7c8145c27e662513d
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the autoconf build system defaults to /nix/var, not /nix/var/nix. the
latter is only used in libstore, so we'll move the extra segment there.
Change-Id: Idfbc988ee302355982abdcd51d6d7b5d5d661c0d
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Without this, the Meson setup won't bail out if nlohmann_json is
missing, leading to subpar DX (and maybe worse, but I'm not entirely
sure).
Change-Id: I5913111060226b540dcf003257c99a08e84da0de
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one headers (args/root.hh) was simply missing, and the generated headers
were not installed. not all of them *should* be installed either, only a
select few (and sadly this needs a custom target for each one, it seems)
Change-Id: I37b25517895d0e5e521abc1202fa65624de57ed1
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Change-Id: I14b9d81d09f188eacfb9c68bcfb84751c18e3779
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This was achieved by running maintainers/buildtime_report.sh on the
build directory of a meson build, then asking "why the heck is json
eating our build times", and strategically moving the json using bits
out of widely included headers.
It turns out that putting literally any metrics whatsoever into the
build had immediate and predictable results.
Results are 1382.5s frontend time -> 1175.4s frontend time, back end
time approximately invariant.
Related: https://git.lix.systems/lix-project/lix/issues/159
Change-Id: I7edea95c8536203325c8bb4dae5f32d727a21b2d
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Once this commit lands, we are even more visible in analytics FWIW.
Change-Id: Id7e0c162315d0f191edbea9cb5fb82ce363704b9
Signed-off-by: Raito Bezarius <raito@lix.systems>
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protocol versions are sent as u64. on the peer we read them as uint64,
check that the upper half is 0, and throw an exception if not. we then
read an arbitrary amount of data from the peer and dump it to the user
terminal. this is a little bit ridiculous, can never happen in correct
implementation, and is severly untested. let us just drop it entirely.
Change-Id: Ibd2f53a765341ed6439d40d9d1eac11e79c6b5e3
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these are copies of copyNAR with only some variables renamed.
Change-Id: I98ddd7a98250fa5d304e18e1debf417e9f7768dd
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If the state SQLite database is configured to use a write-ahead-log, it
creates WAL files in the state directory.
When the state SQLite database is closed by the `nix-daemon` after
builds, those files are removed.
When an unprivileged user would like to open _in read only_ that
database, they cannot do so because they would need to create those WAL
files and they do not have the permission to do so.
For this, SQLite offers a "persistent WAL" feature [1] to leave the WAL
files around, even after closing the database.
This CL enable the persistent WAL mode.
Fixes: https://github.com/NixOS/nix/issues/10300
[1]: https://www.sqlite.org/wal.html
Change-Id: Id8ae534d7d2290457af28782e5215222ae051fe5
Signed-off-by: Raito Bezarius <raito@lix.systems>
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