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This avoids C++'s standard library regexes, which aren't the same
across platforms, and have many other issues, like using stack
so much that they stack overflow when processing a lot of data.
To avoid backwards and forward compatibility issues, regexes are
processed using a function converting libstdc++ regexes into Boost
regexes, escaping characters that Boost needs to have escaped, and
rejecting features that Boost has and libstdc++ doesn't.
Related context:
- Original failed attempt to use `boost::regex` in CppNix, failed due to
boost icu dependency being large (disabling ICU is no longer necessary
because linking ICU requires using a different header file,
`boost/regex/icu.hpp`): https://github.com/NixOS/nix/pull/3826
- An attempt to use PCRE, rejected due to providing less backwards
compatibility with `std::regex` than `boost::regex`:
https://github.com/NixOS/nix/pull/7336
- Second attempt to use `boost::regex`, failed due to `}` regex failing
to compile (dealt with by writing a wrapper that parses a regular
expression and escapes `}` characters):
https://github.com/NixOS/nix/pull/7762
Closes #34. Closes #476.
Change-Id: Ieb0eb9e270a93e4c7eed412ba4f9f96cb00a5fa4
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nixpkgs delivered us the untimely gift of a meson 1.5 upgrade, which
*does* make our lives easier by allowing us to delete wrap generation
code, but it does so at the cost of renaming all rust crates in such a
way that the wrap logic cannot tolerate the new names on the old meson
version 😭.
It also means that support burden for this is going to be atrocious
until we either give in and vendor meson 1.5 or we make a CI target for
it. Neither seems appealing, though the latter is not super absurd for
ensuring we don't break nixpkgs unstable.
This commit causes meson 1.5 to ignore the .wrap files in subprojects/
entirely (since they have the wrong names lol) and instead use
Cargo.lock, so it now hard-depends on our workspace reshuffling
improvement.
It also deletes the hack that we were using to get the sources of Cargo
deps into meson by using a feature that went unnoticed when this code
was originally written: MESON_PACKAGE_CACHE_DIR:
https://github.com/mesonbuild/meson/blob/8a202de6ec763284cbb7160b9d43d5e7e0703f19/mesonbuild/wrap/wrap.py#L490-L502
Change-Id: I7a28f12fc2812c6ed7537b60bc3025c141a05874
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This is purely to let Cargo's dependency resolver do stuff for us, we do
not actually intend to build this stuff with Cargo to begin with.
Change-Id: I4c08d55595c7c27b7096375022581e1e34308a87
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Change-Id: I6802b26f038578870ea1fa1ed298f0c4b1f29c4a
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Shows for how long these tests have not been touched by anyone …
Change-Id: I3d0c1209a86283ddb012db4e7d45073264fdd0eb
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Change-Id: I787e69e1dad6edc5ccdb747b74a9ccd6e8e13bb3
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GCC was complaining, rightfully, about mixed-sign comparisons in there.
I removed some extra sign mixing too.
Change-Id: I949a618c7405c23d4dc3fd17440ea2d7b5c22c9d
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This is required to make more meson stuff easier/possible, and honestly
it *is* now Lix sources anyhow.
Change-Id: Ia6c38fabce9aa5c53768745ee38c5cf344f5c226
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lix-doc is now built with Meson, with lix-doc's dependencies built as
Meson subprojects, either fetched on demand with .wrap files, or fetched
in advance by Nix with importCargoLock. It even builds statically.
Fixes #256.
Co-authored-by: Lunaphied <lunaphied@lunaphied.me>
Co-authored-by: Jade Lovelace <lix@jade.fyi>
Change-Id: I3a4731ff13278e7117e0316bc0d7169e85f5eb0c
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This check is wrong and would cause the close_range() function being called even when it's not available
Change-Id: Ide65b36830e705fe772196c37349873353622761
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The <() process substitution syntax doesn't work for this one testcase
in bash for FreeBSD. The exact reason for this is unknown, possibly to
do with pipe vs file vs fifo EOF behavior. The prior behavior was this
test hanging forever, with no children of the bash process.
Change-Id: I71822a4b9dea6059b34300568256c5b7848109ac
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Closes #460
I managed to trigger the issue by having the following inputs (shortened):
authentik-nix.url = "github:nix-community/authentik-nix";
authentik-nix.inputs.poetry2nix.inputs.nixpkgs.follows = "nixpkgs";
When evaluating this using
nix-eval-jobs --flake .#hydraJobs
I got the following error:
error: cannot update unlocked flake input 'authentik-nix/poetry2nix' in pure mode
The issue we have here is that `authentik-nix/poetry2nix` was written
into the `overrideMap` which caused Nix to assume it's a new input and
tried to refetch it (#460) or errored out in pure mode
(nix-eval-jobs / Hydra).
The testcase unfortunately only involves checking for the output log
and makes sure that something *is* logged on the first fetch so that
the test doesn't rot when the logging changes since I didn't
manage to trigger the error above with the reproducer from #460. In
fact, I only managed to trigger the `cannot update unlocked flake input`
error in this context with `nix-eval-jobs`.
Change-Id: Ifd00091eec9a0067ed4bb3e5765a15d027328807
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it's no longer needed for anything, and not even a great idea.
Change-Id: Ia7a59e1e3f9d8f4ad2ac3b054e38485157c210a6
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this can be a proper WorkResult now. childTerminated is unfortunately a
lot more stubborn and won't be made private for quite a while yet. once
we can get rid of the Worker poll loop that *should* be possible though
Change-Id: I2218df202da5cb84e852f6a37e4c20367495b617
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we'll need this once we want to pass extra information out of accepting
replies, such as fd sets or possibly even async output reader promises.
Change-Id: I5e2f18cdb80b0d2faf3067703cc18bd263329b3f
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don't keep fds open we're not using. currently this does not cause any
problems, but it does increase the size of our fd table needlessly and
in the future, when we have proper async processing, having builderOut
open in the daemon once the hook has been fully started is problematic
Change-Id: I6e7fb773b280b042873103638d3e04272ca1e4fc
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otherwise we *technically* give away the output fds before we've read them.
Change-Id: I6ad0d6a1bb553ecfcdd7708f50d34142a425374d
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this is useless to do on the face of it, but it'll make it easier to
convert the entire output handling to use async io and promises soon
Change-Id: I2d1eb62c4bbf8f57bd558b9599c08710a389b1a8
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main
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only DerivationGoal can set the hook to anything at all. it always sets
buildOutFD to something that is not related to fromHook in any way, and
mixing the two would have rather dire consequences for log consistency.
Change-Id: Ida86727fd1cd5e1ecd78f07f3bde330a346658a8
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Apparently it was impolite to lint with 128 jobs on our CI machine with
128 threads. Let's fix it.
Change-Id: I9ca7306294c6773c6f233690ba49d45a1da6bf7a
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This is incredibly haunted, but it can happen that you change libutil,
breaking the generation of the .json files, which then does not rebuild
the files. I don't expect they are slow to build, so it does not seem so
bad to just rebuild them every time instead of extracting a list of all
the possible deps.
We want to delete this nonsense anyway and replace it with generated
code.
Change-Id: Ia576d1a3bdee48fbaefbb5ac194354428d179a84
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all derivation goals need a log fd of some description. let's save this
single fd in a dedicated pointer field for all subclasses so that later
we have just the one spot to change if we turn this into async promises
Change-Id: If223adf90909247363fb823d751cae34d25d0c0b
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Instead of doing a linear search on an std::set, we use a bitset enum.
Change-Id: Ide537f6cffdd16d06e59aaeb2e4ac0acb6493421
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Change-Id: Ieab14662bea6e6f5533325f0e945147be998f9a2
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we don't need to expose information about how busy a Worker is if the
worker can instead tell its work items whether they are in a slot. in
the future we might use this to not start items waiting for a slot if
no slots are currently available, but that requires more preparation.
Change-Id: Ibe01ac536da7e6d6f80520164117c43e772f9bd9
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Change-Id: I676411752a4b1777045d7211ac1176693f1a3d7d
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Change-Id: I6c7fccc4e710e23a22faae2669cb75f2f6da27b4
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Change-Id: I8583d9ff752f702a10ec52b0330b0d4d4d2614fa
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Closes #437.
Change-Id: I9f67fc965bb4a7e7fd849e5067ac1cb3bab064cd
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They are like experimental features, but opt-in instead of opt-out. They
will allow us to gracefully remove language features. See #437
Change-Id: I9ca04cc48e6926750c4d622c2b229b25cc142c42
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They must die
Change-Id: Ibe2b1818b21d98ec1a68836d01d5dad729b8c501
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The target_machine variable is meant for the target
of cross compilers. We are not a cross compiler, so
instead reuse our host_machine based checks.
Fixes Linux→FreeBSD cross, since Meson can't figure
out `target_machine.kernel()` in that case.
Fixes: https://git.lix.systems/lix-project/lix/issues/469
Change-Id: Ia46a64c8d507c3b08987a1de1eda171ff5e50df4
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Change-Id: Ib64d695c50a733e0e739ff193f1ea65ed7cb0a57
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This merge commit returns to the previous state prior to the release but leaves the tag in the branch history.
Release created with releng/create_release.xsh
Change-Id: I8fc975f856631dec7fb3314abd436675adabb59c
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Release produced with releng/create_release.xsh
Change-Id: I2fa79b268c44b5f024dd833ee366d3e83f054af1
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Release created with releng/create_release.xsh
Change-Id: Ieb6ca02d3cf986b28440fce3792e8c38ce80a33e
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For years both the documentation and nixpkgs have said that CppNix is
LGPL-2.1-or-later, not LGPL-2.1-only as is somewhat implied by the
README. We are choosing to update the README to match the rest of the
references.
Related: https://github.com/NixOS/nix/pull/5218
Change-Id: I6a765ae7857a2f84872f80a25983c4c4b2b3b1c1
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Seems a little bit Rich that musl does not implement close_range because
they suspect that the system call itself is a bad idea, so they uhhhh
are considering not implementing a wrapper. Let's just fix the problem
at hand by writing our own wrapper.
Change-Id: I1f8e5858e4561d58a5450503d9c4585aded2b216
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Turns out strings do not like being resized to -4.
This was discovered while messing with the tests to remove unbuffer and
trying stdbuf instead. Turns out that was not the right approach.
This basically rewrites the handling of this case to be much more
correct, and fixes a bug where with small window sizes where it would
ALSO truncate the attr names in addition to the optional descriptions.
Change-Id: Ifd1beeaffdb47cbb5f4a462b183fcb6c0ff6c524
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I was packaging Lix 2.91 for nixpkgs and was annoyed at the expect
dependency. Turns out that you can replace unbuffer with a pretty-short
Python script.
It became less short after I found out that Linux was converting \n to
\r\n in the terminal subsystem, which was not very funny, but is at
least solved by twiddling termios bits.
Change-Id: I8a2700abcbbf6a9902e01b05b40fa9340c0ab90c
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This will stop printing stuff to dumb terminals that they don't support.
I've overall audited usage of isatty and replaced the ones with intent
to mean "is a Real terminal" with checking for that. I've also caught a
case of carelessly assuming "is a tty" means "should be colour" in
nix-env.
Change-Id: I6d83725d9a2d932ac94ff2294f92c0a1100d23c9
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I noticed there was some stuff setting configureFlags that definitely do
not do anything with meson, so let's rip them out.
As for the empty file, it was added when I was thinking I needed a fake
C++ target to convince meson to create the necessary dependencies. That
was not in fact possible so it should have never been committed.
Change-Id: Ied4723d8a5d21aed85f352c48b080ab2c977a496
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