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This reverts commit 9f16a20f3d35dbc13ba6c8830745e9fc40d408eb.
Since c55e93ca2, the original reason for reverting d003dcd7f
no longer applies.
Change-Id: If88f8555a6060d0530dcfecdf55afaa40afd1ad9
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Previously, the progress bar had two subtly different states in which the bar
would not actually render, both with their own shortcomings: inactive (which
was irreversible) and paused (reversible, but swallowing logs). Furthermore,
there was no way of resetting the statistics, so a very bad solution was
implemented (243c0f18dae2a08ea0e46f7ff33277c63f7506d7) that would create a new
logger for each line of the repl, leaking the previous one and discarding the
value of printBuildLogs. Finally, if stderr was not attached to a TTY, the
update thread was started even though the logger was not active, violating the
invariant required by the destructor (which is not observed because the logger
is leaked).
In this commit, the two aforementioned states are unified into a single one,
which can be exited again, correctly upholds the invariant that the update
thread is only running while the progress bar is active, and does not swallow
logs. The latter change in behavior is not expected to be a problems in the
rare cases where the paused state was used before, since other loggers (like
the simple one) don't exhibit it anyway. The startProgressBar/stopProgressBar
API is removed due to being a footgun, and a new method for properly resetting
the progress is added.
Co-Authored-By: Qyriad <qyriad@qyriad.me>
Change-Id: I2b7c3eb17d439cd0c16f7b896cfb61239ac7ff3a
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Change-Id: Icc8a15090c77f54ea7d9220aadedcd4a19922814
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copy-constructing or assigning from pid_t can easily lead to duplicate
Pid instances for the same process if a pid_t was used carelessly, and
Pid itself was copy-constructible. both could cause surprising results
such as killing processes twice (which could become very problemantic,
but luckily modern systems don't reuse PIDs all that quickly), or more
than one piece of the code believing it owns a process when neither do
Change-Id: Ifea7445f84200b34c1a1d0acc2cdffe0f01e20c6
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Change-Id: I3137cc140590001fe7ba542844e735944a0a9255
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Change-Id: Ic1f68e6af658e94ef7922841dd3ad4c69551ef56
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Change-Id: I77095b9d37e85310075bada7a076ccd482c28e47
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This reverts commit d003dcd7f4ce6b16c3494398a4edd36e668a1b46.
d0390b5cf¹ bumped the default verbosity of nix3 commands, making this
change obsolete.
[1]: d0390b5cf2d232febaa89aa6d8b07c547513a460
Change-Id: I1ddc36ea4514cd8d2855ff334accf6e98c210879
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The interrupt-blocking code was originally introduced 20 years ago so that
trying to log an error message does not result in an interrupt exception being
thrown and then going unhandled (c8d3882cdc8f9e22c58af285c1996265c1af75d5).
However, the logging code does not check for interrupts any more
(054be5025762c5e1c7e853c4fa5d7eed8da1727f), so this reasoning is no longer
applicable. Delete this code so that later interrupts are unblocked again, for
example in the next line entered into the repl.
Closes: https://git.lix.systems/lix-project/lix/issues/296
Change-Id: I48253f5f4272e75001148c13046e709ef5427fbd
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requiring *two* --verbose to print extra information on --version is a
weird flex
Change-Id: I05d043da1bf583f34e9d1fc206144ea4ca9a859d
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Change-Id: I014ff24b900c0b9a48b7a63c8bb8b86cde3ebe54
Signed-off-by: Raito Bezarius <raito@lix.systems>
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This commit adds several meson.build, which successfully build and
install Lix executables, libraries, and headers. Meson does not yet
build docs, Perl bindings, or run tests, which will be added in
following commits. As such, this commit does not remove the existing
build system, or make it the default, and also as such, this commit has
several FIXMEs and TODOs as notes for what should be done before the
existing autoconf + make buildsystem can be removed and Meson made the
default. This commit does not modify any source files.
A Meson-enabled build is also added as a Hydra job, and to
`nix flake check`.
Change-Id: I667c8685b13b7bab91e281053f807a11616ae3d4
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Copies part of the changes of ac89bb064aeea85a62b82a6daf0ecca7190a28b7
Change-Id: I9ce601875cd6d4db5eb1132d7835c5bab9f126d8
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(cherry picked from commit 2a8fe9a93837733e9dd9ed5c078734a35b203e14)
Change-Id: I71dadfef6b24d9272b206e9e2c408040559d8a1c
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While preparing PRs like #9753, I've had to change error messages in
dozens of code paths. It would be nice if instead of
EvalError("expected 'boolean' but found '%1%'", showType(v))
we could write
TypeError(v, "boolean")
or similar. Then, changing the error message could be a mechanical
refactor with the compiler pointing out places the constructor needs to
be changed, rather than the error-prone process of grepping through the
codebase. Structured errors would also help prevent the "same" error
from having multiple slightly different messages, and could be a first
step towards error codes / an error index.
This PR reworks the exception infrastructure in `libexpr` to
support exception types with different constructor signatures than
`BaseError`. Actually refactoring the exceptions to use structured data
will come in a future PR (this one is big enough already, as it has to
touch every exception in `libexpr`).
The core design is in `eval-error.hh`. Generally, errors like this:
state.error("'%s' is not a string", getAttrPathStr())
.debugThrow<TypeError>()
are transformed like this:
state.error<TypeError>("'%s' is not a string", getAttrPathStr())
.debugThrow()
The type annotation has moved from `ErrorBuilder::debugThrow` to
`EvalState::error`.
(cherry picked from commit c6a89c1a1659b31694c0fbcd21d78a6dd521c732)
Change-Id: Iced91ba4e00ca9e801518071fb43798936cbd05a
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Support cross compiling to BSD and CI it
(cherry picked from commit 1f3fc08c5994ca69c84c9e745d59ec2bb2fd820a)
Change-Id: I415e92952afc661cfb5ef91a76c0637678a04a19
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libutil is a dependency of libstore, so it should always be
initialized as such.
libutil is also a dependency of libmain. Being explicit about this
dependency might be good, but not worth the slight code complexity
until the library structure gets more advanced.
Part of an effort to make it easier to initialize the right things,
by moving code into the appropriate libraries.
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Quote
Why not initLibExpr()? initGC() is essentially that, but
detectStackOverflow is not an instance of the init function concept, as
it may have to be invoked more than once per process.
Furthermore, renaming initGC to initLibExpr is more trouble than it's
worth at this time.
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This code is bad. We shouldn't unset variables in programs whose
children may need them. Fixing one issue at a time, so postponing.
See https://github.com/NixOS/nix/issues/7731
Part of an effort to make it easier to initialize the right things,
by moving code into the appropriate libraries.
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It is required for the sandbox, which is a libstore responsibility;
not just libmain.
Part of an effort to make it easier to initialize the right things,
by moving code into the appropriate libraries.
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Part of an effort to make it easier to initialize the right things,
by moving code into the appropriate libraries.
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Part of an effort to make it easier to initialize the right things,
by moving code into the appropriate libraries.
The goal of this reordering is to make initLibStore self-sufficient
in a following commit.
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Part of an effort to make it easier to initialize the right things,
by moving code into the appropriate libraries.
Using libstore without loading the config file is risky, as sqlite
may then be misconfigured. See https://github.com/cachix/cachix/issues/475
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Part of an effort to make it easier to initialize the right things,
by moving code into the appropriate libraries.
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Print the store paths to be fetched sorted by StorePath name()
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Presently when nix says something like:
```
these 486 paths will be fetched (511.54 MiB download, 6458.64 MiB unpacked):
...path1
...path2
...path3
...
...
...path486
```
It sorts path1, path2, path3, ..., path486 in lexicographic order of the
store path.
After this commit, nix will show path1, path2, path3, ..., path486 sorted by
StorePath name() (basically everything after the hash) rather than the store path.
This makes it easier to review what exactly is being downloaded at a glance,
especially when many paths need to be fetched.
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This reverts commit 9b33ef3879a764bed4cc2404a08344c3a697a646.
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This reverts commit a75b7ba30f1e4f8b15e810fd18e63ee9552e0815, reversing
changes made to 9af16c5f742300e831a2cc400e43df1e22f87f31.
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Prevent bugs like https://github.com/cachix/cachix/pull/477
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`savedArgv` is not accessible by plugins when defined in main binary.
Moving it into one of the nix lib fix the problem.
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In particular, the progress bar was interfering with 'less' rendering
in '--help' (e.g. run 'nix --help' and hit '/' to search).
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Disables the SA_RESTART behavior on macOS which causes:
> Restarting of pending calls is requested by setting the SA_RESTART bit
> in sa_flags. The affected system calls include read(2), write(2),
> sendto(2), recvfrom(2), sendmsg(2) and recvmsg(2) on a communications
> channel or a slow device (such as a terminal, but not a regular file)
> and during a wait(2) or ioctl(2).
From: https://man.openbsd.org/sigaction#SA_RESTART
This being set on macOS caused a bug where read() calls to the daemon
socket were blocking after a SIGINT was received. As a result,
checkInterrupt was never reached even though the signal was received
by the signal handler thread.
On Linux, SA_RESTART is disabled by default. This probably effects
other BSDs but I don’t have the ability to test it there right now.
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There is a correctnes issue here, but #3724 will fix that. This is just
a cleanup for brevity's sake.
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Starts progress on #5729.
The idea is that we should not have these default methods throwing
"unimplemented". This is a small step in that direction.
I kept `addTempRoot` because it is a no-op, rather than failure. Also,
as a practical matter, it is called all over the place, while doing
other tasks, so the downcasting would be annoying.
Maybe in the future I could move the "real" `addTempRoot` to `GcStore`,
and the existing usecases use a `tryAddTempRoot` wrapper to downcast or
do nothing, but I wasn't sure whether that was a good idea so with a
bias to less churn I didn't do it yet.
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Also use std::string_view in a few more places.
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https://hydra.nixos.org/build/161439329
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Before this change, stdout was closed after the pager exits. This is
fine for non-interactive commands where we want to exit right after
the pager exits anyways, but for interactive things (e.g. nix repl)
this breaks the output after we quit the pager.
Keep the initial stdout fd as part of RunPager, and restore it in
RunPager::~RunPager using dup2.
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Signed-off-by: Arthur Gautier <baloo@superbaloo.net>
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Signed-off-by: Arthur Gautier <baloo@superbaloo.net>
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Signed-off-by: Arthur Gautier <baloo@superbaloo.net>
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Signed-off-by: Arthur Gautier <baloo@superbaloo.net>
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We can actually just load nss ourselves and call in nss to configure it
and we don't need to run a dummy query entirely to have nss load nss_dns
as a side-effect.
Signed-off-by: Arthur Gautier <baloo@superbaloo.net>
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preloadNSS is not thread-safe, this commit moves it before we start the
first thread.
Signed-off-by: Arthur Gautier <baloo@superbaloo.net>
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Broken by 8e758d402ba1045c7b8273f8cb1d6d8d917ca52b
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