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Change-Id: Ic2f7bc2bd6a1879ad614e4be81a7214f64eb0e85
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Change-Id: I2d4dcedff0a278d2d8f3d264a9186dfb399275e2
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Change-Id: I38cfe8c7059251b581f1013c4213804f36b985ea
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we'll now loop to update displayed statistics, and use this loop to
limit the update rate to 50 times per second. we could have updated
much more frequently before this (once per iteration of `runImpl`),
much faster than would ever be useful in practice. aggressive stats
updates can even impede progress due to terminal or network delays.
Change-Id: Ifba755a2569f73c919b1fbb06a142c0951395d6d
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Worker::run() is now entirely based on the kj event loop and promises,
so we need not handle awakeness of goals manually any more. every goal
can instead, once it has finished a partial work call, defer itself to
being called again in the next iteration of the loop. same end effect.
Change-Id: I320eee2fa60bcebaabd74d1323fa96d1402c1d15
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notably we will check whether we want to do GC at all only once during
startup, and we'll only attempt GC every ten seconds rather than every
time a goal has finished a partial work call. this shouldn't cause any
problems in practice since relying on auto-gc is not deterministic and
stores in which builds can fill all remaining free space in merely ten
seconds are severely troubled even when gargage collection runs a lot.
Change-Id: I1175a56bf7f4e531f8be90157ad88750ff2ddec4
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Change-Id: Ib112ea9a3e67d5cb3d7d0ded30bbd25c96262470
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Change-Id: I8355d8d3f6c43a812990c1912b048e5735b07f7b
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Revert submission 1946
Reason for revert: regression in building (found via bisection)
Reported by users:
> error: path '/nix/store/04ca5xwvasz6s3jg0k7njz6rzi0d225w-jq-1.7.1-dev' does not exist in the store
Reverted changes: /q/submissionid:1946
Change-Id: I6f1a4b2f7d7ef5ca430e477fc32bca62fd97036b
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nothing needs to signal being still active but not actively pollable,
only that immediate polling for the next goal work phase is in order.
Change-Id: Ia43c1015e94ba4f5f6b9cb92943da608c4a01555
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this was immensely inefficient on large caches, as can exist when many
derivations are buildable simultaneously. since we have smart pointers
to goals we can do cache maintenance in goal deleters instead, and use
the exact iterators instead of doing a linear search. this *does* rely
on goals being deleted to remove them from the cache, which isn't true
for toplevel goals. those would have previously been removed when done
in all cases, removing the cache entry when keep-going is set. this is
arguably incorrect since it might result in those goals being retried,
although that could only happen with dynamic derivations or the likes.
(luckily dynamic derivations not complete enough to allow this at all)
Change-Id: I8e750b868393588c33e4829333d370f2c509ce99
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makeDerivationGoalCommon had the right idea, but it didn't quite go far
enough. let's do the rest and remove the remaining factory duplication.
Change-Id: I1fe32446bdfb501e81df56226fd962f85720725b
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this was a debugging aid from day one that should not have any impact on
build semantics, and if it *does* have an impact on build semantics then
build semantics are seriously broken. keeping the order imposed by these
keys will be impossible once we let a real event loop schedule our jobs.
Change-Id: I5c313324e1f213ab6453d82f41ae5e59de809a5b
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without circular references we do not need weak goal pointers except for
caches, which should not prevent goal destructors running. caches though
cannot create circular references even when they keep strong references.
if we removed goals from caches when their work() is fully finished, not
when their destructors are run, we could keep strong pointers in caches.
since we do not gain much from this we keep those pointers weak for now.
Change-Id: I1d4a6850ff5e264443c90eb4531da89f5e97a3a0
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have DerivationGoal and its subclasses produce a wrapper promise for
their intermediate results instead, and return this wrapper promise.
Worker already handles promises that do not complete immediately, so
we do not have to duplicate this into an entire result type variant.
Change-Id: Iae8dbf63cfc742afda4d415922a29ac5a3f39348
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the new event loop could very occasionally notice that a dependency of
some goal has failed, process the failure, cause the depending goal to
fail accordingly, and in the doing of the latter two steps let further
dependencies that previously have not been reported as failed do their
reporting anyway. in such cases a goal could fail with "1 dependencies
failed", but more than one dependency failure message was shown. we'll
now report the correct number of failed dependency goals in all cases.
Change-Id: I5aa95dcb2db4de4fd5fee8acbf5db833531d81a8
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these can be unique rather than shared because shared_ptr has a
converting constructor. preparatory refactor for something else
and not necessary on its own, and the extra allocations we must
do for shared_ptr control blocks isn't usually relevant anyway.
Change-Id: I5391715545240c6ec8e83a031206edafdfc6462f
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into main
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* changes:
build: require meson 1.4.0 or newer
build: fix deprecated uses of configure_file
build: install html manual without using install_subdir
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Since fb38459d6e58508245553380cccc03c0dbaa1542, each `ref` is appended
with `refs/heads` unless it starts with `refs/` already. This regressed
two use-cases that worked fine before:
* Specifying a commit hash as `ref`: now, if `ref` looks like a commit
hash it will be directly passed to `git fetch`.
* Specifying a tag without `refs/tags` as prefix: now, the fetcher prepends
`refs/*` to a ref that doesn't start with `refs/` and doesn't look
like a commit hash. That way, both a branch and a tag specified in
`ref` can be fetched.
The order of preference in git is
* file in `refs/` (e.g. `HEAD`)
* file in `refs/tags/`
* file in `refs/heads` (i.e. a branch)
After fetching `refs/*`, ref is resolved the same way as git does.
Change-Id: Idd49b97cbdc8c6fdc8faa5a48bef3dec25e4ccc3
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Using `configure_file` to copy files has been deprecated since Meson 0.64.0.
The intended replacement is the `fs.copyfile` method.
This removes the following deprecation warning that arises when a minimum
Meson version is specified:
``
Project [...] uses feature deprecated since '0.64.0': copy arg in configure_file. Use fs.copyfile instead
``
Change-Id: I09ffc92e96311ef9ed594343a0a16d51e74b114a
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also gets rid of explicit strong references to dependencies of any goal,
and weak references to dependers as well. those are now only held within
promises representing goal completion and thus independent of the goal's
relation to each other. the weak references to dependers was only needed
for notifications, and that's much better handled entirely by kj itself.
Change-Id: I00d06df9090f8d6336ee4bb0c1313a7052fb016b
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now that we have an event loop in the worker we can use it and its
magical execution suspending properties to replace the slot counts
we managed explicitly with semaphores and raii tokens. technically
this would not have needed an event loop base to be doable, but it
is a whole lot easier to wait for a token to be available if there
is a callback mechanism ready for use that doesn't require a whole
damn dedicated abstract method in Goal to work, and specific calls
to that dedicated method strewn all over the worker implementation
Change-Id: I1da7cf386d94e2bbf2dba9b53ff51dbce6a0cff7
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with waitForAWhile turned into promised the core functionality of
waitForInput is now merely to let gc run every so often if needed
Change-Id: I68da342bbc1d67653901cf4502dabfa5bc947628
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this simplifies waitForInput quite a lot, and at the same time makes
polling less thundering-herd-y. it even fixes early polling wakeups!
Change-Id: I6dfa62ce91729b8880342117d71af5ae33366414
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this removes the rather janky did-you-mean-async poll loop we had so
far. sadly kj does not play well with pty file descriptors, so we do
have to add our own async input stream that does not eat pty EIO and
turns it into an exception. that's still a *lot* better than the old
code, and using a real even loop makes everything else easier later.
Change-Id: Idd7e0428c59758602cc530bcad224cd2fed4c15e
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When `nix fmt` is called without an argument, Nix appends the "." argument before calling the formatter. The comment in the code is:
> Format the current flake out of the box
This also happens when formatting sub-folders.
This means that the formatter is now unable to distinguish, as an interface, whether the "." argument is coming from the flake or the user's intent to format the current folder. This decision should be up to the formatter.
Treefmt, for example, will automatically look up the project's root and format all the files. This is the desired behaviour. But because the "." argument is passed, it cannot function as expected.
Upstream-PR: https://github.com/nixos/nix/pull/11438
Change-Id: I60fb6b3ed4ec1b24f81b5f0d76c0be98470817ce
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* changes:
Fix passing custom CA files into the builtin:fetchurl sandbox
[security] builtin:fetchurl: Enable TLS verification
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like kj::joinPromisesFailFast this allows waiting for the results of
multiple promises at once, but unlike it not all input promises must
be complete (or any of them failed) for results to become available.
Change-Id: I0e4a37e7bd90651d56b33d0bc5afbadc56cde70c
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like a normal semaphore, but with awaitable acquire actions. this is
primarily intended as an intermediate concurrency limiting device in
the Worker code, but it may find other uses over time. we do not use
std::counting_semaphore as a base because the counter of that is not
inspectable as will be needed for Worker. we also do not need atomic
operations for cross-thread consistency since we don't have multiple
threads (thanks to kj event loops being confined to a single thread)
Change-Id: Ie2bcb107f3a2c0185138330f7cbba4cec6cbdd95
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Without this, verifying TLS certificates would fail on macOS, as well
as any system that doesn't have a certificate file at /etc/ssl/certs/ca-certificates.crt,
which includes e.g. Fedora.
Change-Id: Iaa2e0e9db3747645b5482c82e3e0e4e8f229f5f9
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This is better for privacy and to avoid leaking netrc credentials in a
MITM attack, but also the assumption that we check the hash no longer
holds in some cases (in particular for impure derivations).
Partially reverts https://github.com/NixOS/nix/commit/5db358d4d78aea7204a8f22c5bf2a309267ee038.
(cherry picked from commit c04bc17a5a0fdcb725a11ef6541f94730112e7b6)
(cherry picked from commit f2f47fa725fc87bfb536de171a2ea81f2789c9fb)
(cherry picked from commit 7b39cd631e0d3c3d238015c6f450c59bbc9cbc5b)
Upstream-PR: https://github.com/NixOS/nix/pull/11585
Change-Id: Ia973420f6098113da05a594d48394ce1fe41fbb9
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Previously we would only crash the program for bad HintFmt calls.
nix::fmt should also crash.
Change-Id: I4ba0abeb8557b208bd9c0be624c022a60446ef7e
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These stack traces kind of suck for the reasons mentioned on the
CppTrace page here (no symbols for inline functions is a major one):
https://github.com/jeremy-rifkin/cpptrace
I would consider using CppTrace if it were packaged, but to be honest, I
think that the more reasonable option is actually to move entirely to
out-of-process crash handling and symbolization.
The reason for this is that if you want to generate anything of
substance on SIGSEGV or really any deadly signal, you are stuck in
async-signal-safe land, which is not a place to be trying to run a
symbolizer. LLVM does it anyway, probably carefully, and chromium *can*
do it on debug builds but in general uses crashpad:
https://source.chromium.org/chromium/chromium/src/+/main:base/debug/stack_trace_posix.cc;l=974;drc=82dff63dbf9db05e9274e11d9128af7b9f51ceaa;bpv=1;bpt=1
However, some stack traces are better than *no* stack traces when we get
mystery exceptions falling out the bottom of the program. I've also
promoted the path for "mystery exceptions falling out the bottom of the
program" to hard crash and generate a core dump because although there's
been some months since the last one of these, these are nonetheless
always *atrociously* diagnosed.
We can't improve the crash handling further until either we use Crashpad
(which involves more C++ deps, no thanks) or we put in the ostensibly
work in progress Rust minidump infrastructure, in which case we need to
finish full support for Rust in libutil first.
Sample report:
Lix crashed. This is a bug. We would appreciate if you report it at https://git.lix.systems/lix-project/lix/issues with the following information included:
Exception: std::runtime_error: lol
Stack trace:
0# nix::printStackTrace() in /home/jade/lix/lix3/build/src/nix/../libutil/liblixutil.so
1# 0x000073C9862331F2 in /home/jade/lix/lix3/build/src/nix/../libmain/liblixmain.so
2# 0x000073C985F2E21A in /nix/store/p44qan69linp3ii0xrviypsw2j4qdcp2-gcc-13.2.0-lib/lib/libstdc++.so.6
3# 0x000073C985F2E285 in /nix/store/p44qan69linp3ii0xrviypsw2j4qdcp2-gcc-13.2.0-lib/lib/libstdc++.so.6
4# nix::handleExceptions(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::function<void ()>) in /home/jade/lix/lix3/build/src/nix/../libmain/liblixmain.so
5# 0x00005CF65B6B048B in /home/jade/lix/lix3/build/src/nix/nix
6# 0x000073C985C8810E in /nix/store/dbcw19dshdwnxdv5q2g6wldj6syyvq7l-glibc-2.39-52/lib/libc.so.6
7# __libc_start_main in /nix/store/dbcw19dshdwnxdv5q2g6wldj6syyvq7l-glibc-2.39-52/lib/libc.so.6
8# 0x00005CF65B610335 in /home/jade/lix/lix3/build/src/nix/nix
Change-Id: I1a9f6d349b617fd7145a37159b78ecb9382cb4e9
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This caused an infinite loop before since it would just keep asking the
underlying source for more data.
In practice this happened because an HTTP server served a
response to a HEAD request (for which curl will not retrieve any body or
call our write callback function) with Content-Encoding: br, leading to
decompressing nothing at all and going into an infinite loop.
This adds a test to make sure none of our compression methods do that
again, as well as just patching the HTTP client to never feed empty data
into a compression algorithm (since they absolutely have the right to
throw CompressionError on unexpectedly-short streams!).
Reported on Matrix: https://matrix.to/#/!lymvtcwDJ7ZA9Npq:lix.systems/$8BWQR_zKxCQDJ40C5NnDo4bQPId3pZ_aoDj2ANP7Itc?via=lix.systems&via=matrix.org&via=tchncs.de
Change-Id: I027566e280f0f569fdb8df40e5ecbf46c211dad1
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The legitimate output of `nix path-info` may visually interfere with the
progress bar, by appending to stale progress output before the latter has been
erased. Conveniently, all expensive operations (evaluation or building) have
already been performed before, so we can simply wipe the progress bar at this
point to fix the issue.
Fixes: https://git.lix.systems/lix-project/lix/issues/343
Change-Id: Id9a807a5c882295b3e6fbf841f9c15dc96f67f6e
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Lix cannot be built with GNU readline, and we would "rather not" be GPL.
Change-Id: I0e86f0f10dab966ab1d1d467fb61fd2de50c00de
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See https://git.lix.systems/lix-project/lix/issues/496.
The core idea is to be able to do e.g.
nix-instantiate -A some-nonfree-thing --arg config.allowUnfree true
which is currently not possible since `config.allowUnfree` is
interpreted as attribute name with a dot in it.
In order to change that (probably), Jade suggested to find out if there
are any folks out there relying on this behavior.
For such a use-case, it may still be possible to accept strings, i.e.
`--arg '"config.allowUnfree"'.
Change-Id: I986c73619fbd87a95b55e2f0ac03feaed3de2d2d
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into main
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* changes:
archive: refactor bad mutable-state API in the NAR parse listener
archive: rename ParseSink to NARParseVisitor
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* Move the extended attribute deletion after the hardlink sanity check. We
shouldn't be removing extended attributes on random files.
* Make the entity owner-writable before attempting to remove extended
attributes, since this operation usually requires write access on the file,
and we shouldn't fail xattr deletion on a file that has been made unwritable
by the builder or a previous canonicalisation pass.
Fixes: https://git.lix.systems/lix-project/lix/issues/507
Change-Id: I7e6ccb71649185764cd5210f4a4794ee174afea6
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This is not a detailed diagnosis, and it's not worth writing one, tbh.
This error basically never happens in normal operation, so diagnosing it
by changing the error on macOS is good enough.
Relevant: https://git.lix.systems/lix-project/lix-installer/issues/24
Relevant: https://git.lix.systems/lix-project/lix-installer/issues/18
Relevant: https://git.lix.systems/lix-project/lix/issues/521
Change-Id: I03701f917d116575c72a97502b8e1617679447f2
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Remove the mutable state stuff that assumes that one file is being
written a time. It's true that we don't write multiple files
interleaved, but that mutable state is evil.
Change-Id: Ia1481da48255d901e4b09a9b783e7af44fae8cff
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