Commit graph

16360 commits

Author SHA1 Message Date
eldritch horrors 724b345eb9 libstore: encapsulate worker build hook state
once goals run on multiple threads these fields must by synchronized as
one, or we try to run build hooks to often (or worse, not often enough)

Change-Id: I47860e46fe5c6db41755b2a3a1d9dbb5701c4ca4
2024-08-02 13:52:15 +00:00
eldritch horrors 868eb5ecde libutil: make RunningProgram::wait more resilient
this will usually be used either directly (which is always fine) or in
Finally blocks (where it must never throw execptions). make sure that,
exceptions being handled or not, the calling wait() in Finally doesn't
cause crashes due to the Finally no-nested-exceptions-thrown assertion

Change-Id: Ib83a5d9483b1fe83b9a957dcefeefce5d088f06d
2024-08-02 13:12:44 +00:00
Jeremy List c907d805bf Merge "package: make aws-sdk-cpp build input optional" into main 2024-08-02 11:42:13 +00:00
Isabel 9eb374dc6d Merge "nix flake show: add the description if it exists" into main 2024-08-02 07:56:06 +00:00
Maximilian Bosch 3bb8c627ae Merge "Reapply "libfetchers: make attribute / URL query handling consistent"" into main 2024-08-02 04:50:25 +00:00
Maximilian Bosch 87fd1f024c Reapply "libfetchers: make attribute / URL query handling consistent"
The original attempt at this introduced a regression; this commit
reverts the revert and fixes the regression.

This reverts commit 3e151d4d77.

Fix to the regression:

flakeref: fix handling of `?dir=` param for flakes in subdirs

As reported in #419[1], accessing a flake in a subdir of a Git
repository fails with the previous commit[2] applied with the error

    error: unsupported Git input attribute 'dir'

The problem is that the `dir`-param is inserted into the parsed URL if a
flake is fetched from the subdir of a Git repository. However, for the
fetching part this isn't even needed. The fix is to just pass `subdir`
as second argument to `FlakeRef` (which needs a `basedir` that can be
empty) and leave the parsedURL as-is.

Added a regression test to make sure we don't run into this again.

[1] lix-project/lix#419
[2] e22172aaf6b6a366cecd3c025590e68fa2b91bcc,
    originally 3e151d4d77

Change-Id: I2c72d5a32e406a7ca308e271730bd0af01c5d18b
2024-08-01 15:41:30 -07:00
jade 8b69d13368 Merge "flake: remove control character from file by using fromJSON" into main 2024-08-01 22:25:36 +00:00
Jeremy List f41190552f
package: make aws-sdk-cpp build input optional
I have added an option to turn off this build input because I'm much
more comfortable when I don't have that type of thing on my computer.
Its default value is true in order to avoid impacting anyone who depends
on AWS features.

Change-Id: Ic57f3c9b9468f422e9fbdcf3ba0fe96177631067
2024-08-02 09:14:48 +12:00
Qyriad 61a93d5308 Merge changes Icc4747ae,Id4717b5b,Ie3ddb3d0,Ic4d93a08,I00d9ff70 into main
* changes:
  remove unused headers in installable-attr-path
  libexpr: include the type of the non-derivation value in the type error
  libexpr: mild cleanup to getDerivations
  libexpr: DrvInfo: remove unused bad-citizen constructor
  cleanup and slightly refactor DrvInfo::queryOutputs
2024-08-01 16:25:43 +00:00
jade e6fc3e9227 flake: remove control character from file by using fromJSON
I was reminded by various evil things puck did to the evaluator
involving null bytes that you can get funny bytes by abusing JSON
parsing. It's neater than putting binary in the source file, so let's do
it.

Change-Id: I1ff2e0d829eb303fbed81fa2ebb3a39412e89ff1
2024-07-31 23:23:42 -07:00
jade a3ab2cc78a Merge changes from topic "undefined-behaviour" into main
* changes:
  releng: move officialRelease to version.json
  Add -Werror CI job
  ci: add a asan+ubsan test run on x86_64-linux
  tree-wide: add support for asan!
2024-08-01 04:01:34 +00:00
Qyriad 17d7e88707 remove unused headers in installable-attr-path
Change-Id: Icc4747aed195e3855b128c73df82e202405af6a8
2024-08-01 00:37:13 +00:00
Qyriad 4f6a3d7e9e libexpr: include the type of the non-derivation value in the type error
Change-Id: Id4717b5b0df7c09b0dbf17e642d8713a0a3efbae
2024-08-01 00:37:03 +00:00
Qyriad 5ffed6d06a libexpr: mild cleanup to getDerivations
Shuffled the logic around a bit so the shorter code paths are early
returns, added comments, etc.

Should be NFC.

Change-Id: Ie3ddb3d0eddd614d6f8c37bf9a4d5a50282084ea
2024-08-01 00:36:55 +00:00
Qyriad 6a30ea0cc4 libexpr: DrvInfo: remove unused bad-citizen constructor
DrvInfo's constructor that only takes `EvalState` leaves everything else
empty; a DrvInfo which has no iota of information about the derivation
it represents is not useful, and was not used anywhere.

Change-Id: Ic4d93a08cb2748b8cef9a61e41e70404834b23f9
2024-08-01 00:36:41 +00:00
Qyriad eb18dcb0ea cleanup and slightly refactor DrvInfo::queryOutputs
Change-Id: I00d9ff707fe61995737b86af6d2eaa1e4d8116ff
2024-08-01 00:36:27 +00:00
jade 5eecdd3ae9 releng: move officialRelease to version.json
This was causing a few bits of suffering downstream, in particular, in
the NixOS module, which, after this change, can have the
`officialRelease` stuff in *it* completely deleted since we now have
correct defaulting in package.nix for it.

It also eliminates some automated editing of Nix files, which is
certainly always welcome to eliminate.

Fixes: lix-project/lix#406
Change-Id: Id12f3018cff4633e379dbfcbe26b7bc84922bdaf
2024-07-31 14:13:39 -07:00
jade b5c6ce7a53 Add -Werror CI job
We should cause CLs that introduce compiler warnings to fail CI. Sadly
this will only cover Clang, but it will cover Clang for free, so it's
truly impossible to say if it's bad or not.

Change-Id: I45ca20d77251af9671d5cbe0d29cb08c5f1d03c2
2024-07-31 14:13:39 -07:00
jade e51263057f ci: add a asan+ubsan test run on x86_64-linux
This should at least catch out blatantly bad patches that don't pass the
test suite with ASan. We don't do this to the integration tests since
they run on relatively limited-memory VMs and so it may not be super
safe to run an evaluator with leak driven garbage collection for them.

Fixes: lix-project/lix#403
Fixes: lix-project/lix#319
Change-Id: I5267b02626866fd33e8b4d8794344531af679f78
2024-07-31 14:13:39 -07:00
jade 19ae87e5ce tree-wide: add support for asan!
What if you could find memory bugs in Lix without really trying very
hard? I've had variously scuffed patches to do this, but this is
blocked on boost coroutines removal at this point tbh.

Change-Id: Id762af076aa06ad51e77a6c17ed10275929ed578
2024-07-31 14:13:39 -07:00
Qyriad ddfca6e81b libexpr: implement actual constructors for nix::Value
Change-Id: Iebc2bb4e4ea5e93045afe47677df756de4ec4d05
2024-07-31 15:38:37 +02:00
V. c347d3df8f Merge changes I609a5898,I7afb53c9 into main
* changes:
  devendor pegtl
  update flake.lock
2024-07-30 20:32:52 +00:00
eldritch horrors 97a389b0be libstore: move Goal::getBuildResult to BuildResult
there are no other uses for this yet, but asking for just a subset of
outputs does seem at least somewhat useful to have as a generic thing

Change-Id: I30ff5055a666c351b1b086b8d05b9d7c9fb1c77a
2024-07-30 16:37:13 +00:00
Max “Goldstein” Siling 53bfcf2586 Merge "src/libcmd/repl.cc: avoid unneeded reload after :e" into main 2024-07-30 16:32:56 +00:00
Max “Goldstein” Siling 1a6d7a3af4 src/libcmd/repl.cc: avoid unneeded reload after :e
If `:edit`ing a store path, don't reload repl afterwards
to avoid losing local variables: store is immutable,
so "editing" a store path is always just viewing it.

Resolves: lix-project/lix#341
Change-Id: I3747f75ce26e0595e953069c39ddc3ee80699718
2024-07-30 16:08:26 +00:00
eldritch horrors d265dd5993 libstore: count all substitutions toward the same limit
limiting CA substitutions was a rather recent addition, and it used a
dedicated counter to not interfere with regular substitutions. though
this works fine it somewhat contradicts the documentation; job limits
should apply to all kinds of substitutions, or be one limit for each.

Change-Id: I1505105b14260ecc1784039b2cc4b7afcf9115c8
2024-07-30 15:37:27 +00:00
eldritch horrors d9af753a7f libstore: always wake up goals on EOF
all goals do this. it makes no sense to not notify a goal of EOF
conditions because this is the universal signal for "child done"

Change-Id: Ic3980de312547e616739c57c6248a8e81308b5ee
2024-07-30 15:37:27 +00:00
eldritch horrors 6c0dcd1220 libstore: simplify substitution handleEOF
both substitution goals add only this single fd to their wait set.

Change-Id: Ibf921f5bb3919106208a0871523b32c8f67fb3d3
2024-07-30 15:37:27 +00:00
eldritch horrors 548c973e82 libstore: remove Worker::updateProgress
just update progress every time a goal has returned from work(). there
seem to be no performance penalties, and the code is much simpler now.

Change-Id: I288ee568b764ee61f40a498d986afda49987cb50
2024-07-29 22:16:11 +00:00
Artemis Tosini 3058029fba
libutil: Add bindPath function from libstore
bindPath/doBind is a useful function in build that is used in several
parts of LocalDerivationGoal. Moving this function makes it easier to
split LocalDerivationGoal implementation between several files.

Change-Id: Ic5a0768479c153c1aa3ed425f12604b20bbf0f42
2024-07-27 19:40:40 +00:00
jade 6abad7cb23 Merge "releng: Remove workaround for skopeo feature we didn't know about" into main 2024-07-26 11:09:17 +00:00
V. a98dce2a1f devendor pegtl
Change-Id: I609a58985fc5210806d0959049a48976ae079c30
2024-07-26 11:22:34 +04:00
V. 393794ad92 update flake.lock
Change-Id: I7afb53c929d297061dba6ec4a3ec7c6e3c6a553e
2024-07-26 11:22:34 +04:00
alois31 d945e89e19 Merge changes I45d3895f,I541be3ea,Ibe51416d into main
* changes:
  libstore/build: block io_uring
  libstore/build: use an allowlist approach to syscall filtering
  libstore/build: always treat seccomp setup failures as fatal
2024-07-26 07:08:35 +00:00
Artemis Tosini 60a48311e8 Merge "libutil: Support getSelfExe on FreeBSD" into main 2024-07-25 23:10:30 +00:00
jade c4c7cb7613 Merge changes Ic0dfcfe2,Ibe73851f,Ia7a8df1c,I400b2031 into main
* changes:
  package.nix: remove dead code
  diff-closures: remove gratuitous copy
  tree-wide: NULL -> nullptr
  libutil: rip out GNU Hurd support code
2024-07-25 18:05:41 +00:00
alois31 e7188e211a
libstore/build: block io_uring
Unfortunately, io_uring is totally opaque to seccomp, and while currently there
are no dangerous operations implemented, there is no guarantee that it remains
this way. This means that io_uring should be blocked entirely to ensure that
the sandbox is future-proof. This has not been observed to cause issues in
practice.

Change-Id: I45d3895f95abe1bc103a63969f444c334dbbf50d
2024-07-25 18:24:45 +02:00
alois31 127ee1a101
libstore/build: use an allowlist approach to syscall filtering
Previously, system call filtering (to prevent builders from storing files with
setuid/setgid permission bits or extended attributes) was performed using a
blocklist. While this looks simple at first, it actually carries significant
security and maintainability risks: after all, the kernel may add new syscalls
to achieve the same functionality one is trying to block, and it can even be
hard to actually add the syscall to the blocklist when building against a C
library that doesn't know about it yet. For a recent demonstration of this
happening in practice to Nix, see the introduction of fchmodat2 [0] [1].

The allowlist approach does not share the same drawback. While it does require
a rather large list of harmless syscalls to be maintained in the codebase,
failing to update this list (and roll out the update to all users) in time has
rather benign effects; at worst, very recent programs that already rely on new
syscalls will fail with an error the same way they would on a slightly older
kernel that doesn't support them yet. Most importantly, no unintended new ways
of performing dangerous operations will be silently allowed.

Another possible drawback is reduced system call performance due to the larger
filter created by the allowlist requiring more computation [2]. However, this
issue has not convincingly been demonstrated yet in practice, for example in
systemd or various browsers. To the contrary, it has been measured that the the
actual filter constructed here has approximately the same overhead as a very
simple filter blocking only one system call.

This commit tries to keep the behavior as close to unchanged as possible. The
system call list is in line with libseccomp 2.5.5 and glibc 2.39, which are the
latest versions at the point of writing. Since libseccomp 2.5.5 is already a
requirement and the distributions shipping this together with older versions of
glibc are mostly not a thing any more, this should not lead to more build
failures any more.

[0] https://github.com/NixOS/nixpkgs/issues/300635
[1] https://github.com/NixOS/nix/issues/10424
[2] https://github.com/flatpak/flatpak/pull/4462#issuecomment-1061690607

Change-Id: I541be3ea9b249bcceddfed6a5a13ac10b11e16ad
2024-07-25 18:24:40 +02:00
alois31 233408f677
libstore/build: always treat seccomp setup failures as fatal
In f047e4357b, I missed the behavior that if
building without a dedicated build user (i.e. in single-user setups), seccomp
setup failures are silently ignored. This was introduced without explanation 7
years ago (ff6becafa8). Hopefully the only
use-case nowadays is causing spurious test suite successes when messing up the
seccomp filter during development. Let's try removing it.

Change-Id: Ibe51416d9c7a6dd635c2282990224861adf1ceab
2024-07-25 18:21:26 +02:00
Qyriad 8d12e0fbb7 fix building with Musl, fixing static builds
Musl stdout macro expands¹ to something that isn't a valid identifier,
so we get syntax errors when compiling usage of a method called stdout
with Musl's stdio.h.

[1]: https://git.musl-libc.org/cgit/musl/tree/include/stdio.h?id=ab31e9d6a0fa7c5c408856c89df2dfb12c344039#n67

Change-Id: I10e6f6a49504399bf8edd59c5d9e4e62449469e8
2024-07-24 17:21:40 +00:00
Artemis Tosini 3b96b51cf4
libutil: Support getSelfExe on FreeBSD
getSelfExe is used in a few places re-execute nix.
Current code in this file uses ifdefs to support several
platforms, just keep doing that

Change-Id: Iecc2ada0101aea0c30524e3a1218594f919d74bf
2024-07-24 01:28:03 +00:00
jade 98e8cf9c63 package.nix: remove dead code
Change-Id: Ic0dfcfe27dbf13da4f7f74f5fab8ce6fa718d28f
2024-07-23 21:53:43 +02:00
jade 12a5838d11 diff-closures: remove gratuitous copy
This was done originally because std::smatch does not accept `const char
*` as iterators. However, this was because we should have been using
std::cmatch instead.

Change-Id: Ibe73851fd39755e883df2d33d22fed72ac0a04ae
2024-07-23 21:45:30 +02:00
jade eecc4ff1c0 releng: Remove workaround for skopeo feature we didn't know about
It turns out skopeo *does* support not saying the tag, but I couldn't
find it in the docs.

Asking the author in https://github.com/containers/skopeo/issues/2354
yielded that this can be requested as `@@unknown-digest@@`.

So now we have a perfectly cromulent docker upload chain, yay!!

Change-Id: I256f3cbeef4fe28b3d68d0dda57f02cdaee3996b
2024-07-23 12:11:15 -07:00
jade 2436f2110a tree-wide: NULL -> nullptr
This is slightly more type safe and is more in line with modern C++.

Change-Id: Ia7a8df1c7788085020d1bdc941d6f9cee356144e
2024-07-23 21:06:55 +02:00
jade 916b5c68fb libutil: rip out GNU Hurd support code
Nobody has stepped up to add further support for Hurd since this code
appeared in 2010 or 2014. We don't need it.

Change-Id: I400b2031a225551ea3c71a3ef3ea9fdb599dfba3
2024-07-23 20:52:04 +02:00
Artemis Tosini 53f3e39815
libstore: Add FreeBSD findPlatformRoots
Use libprocstat to find garbage collector roots on FreeBSD.
Tested working on a FreeBSD machine, although there is no CI yet

Change-Id: Id36bac8c3de6cc4de94e2d76e9663dd4b76068a9
2024-07-23 17:49:33 +00:00
Isabel d2422771eb
nix flake show: add the description if it exists
(cherry picked from commit 8cd1d02f90eb9915e640c5d370d919fad9833c65)

nix flake show: Only print up to the first new line if it exists.

(cherry picked from commit 5281a44927bdb51bfe6e5de12262d815c98f6fe7)

add tests

(cherry picked from commit 74ae0fbdc70a5079a527fe143c4832d1357011f7)

Handle long strings, embedded new lines and empty descriptions

(cherry picked from commit 2ca7b3afdbbd983173a17fa0a822cf7623601367)

Account for total length of 80

(cherry picked from commit 1cc808c18cbaaf26aaae42bb1d7f7223f25dd364)

docs: add nix flake show description release note

fix: remove white space

nix flake show: trim length based on terminal size

test: account for terminal size

docs(flake-description): before and after commands; add myself to credits

Upstream-PR: https://github.com/NixOS/nix/pull/10980
Change-Id: Ie1c667dc816b3dd81e65a1f5395e57ea48ee0362
2024-07-23 13:21:15 +01:00
Pierre Bourdon 73c013a5df Merge "libexpr/gc-alloc: fix compilation with !HAVE_BOEHMGC" into main 2024-07-22 23:14:59 +00:00
Pierre Bourdon e76245f8e9
libexpr/gc-alloc: fix compilation with !HAVE_BOEHMGC
Fixes: 72ee25b402
Change-Id: Ib59386af1415a8ed4b53af24ec22a4ffa5e5877d
2024-07-23 00:50:09 +02:00