Commit graph

3193 commits

Author SHA1 Message Date
Eelco Dolstra 6e30d9b69f Merge branch 'master' of https://github.com/alekswn/nix 2021-10-29 14:42:26 +02:00
Eelco Dolstra 33d04e8a8d Use nix::connect() to connect to the garbage collector 2021-10-28 22:51:11 +02:00
Eelco Dolstra 22c35ea5b8 Remove unused variable 2021-10-28 22:51:11 +02:00
Eelco Dolstra a7d4f3411e Merge remote-tracking branch 'origin/master' into non-blocking-gc 2021-10-28 14:56:55 +02:00
Eelco Dolstra f2280749b1 If max-jobs == 0, do preferLocalBuild on remote builders 2021-10-27 14:21:31 +02:00
Eelco Dolstra 6e684d1b87 daemon: Accept 'repeat' setting from untrusted users
Fixes #5352.
2021-10-27 13:09:13 +02:00
regnat af99941279 Make experimental-features a proper type
Rather than having them plain strings scattered through the whole
codebase, create an enum containing all the known experimental features.

This means that
- Nix can now `warn` when an unkwown experimental feature is passed
  (making it much nicer to spot typos and spot deprecated features)
- It’s now easy to remove a feature altogether (once the feature isn’t
  experimental anymore or is dropped) by just removing the field for the
  enum and letting the compiler point us to all the now invalid usages
  of it.
2021-10-26 07:02:31 +02:00
Alexander Bantyev b9234142f5
addToStore, addToStoreFromDump: add references argument
Allow to pass a set of references to be added as info to the added paths.
2021-10-23 21:30:51 +03:00
Alexey Novikov e989c83b44 Add error reporting to machine spec paser
Currently machine specification (`/etc/nix/machine`) parser fails
with a vague exception if the file had incorrect format.
This commit adds verbose exceptions and unit-tests for the parser.
2021-10-17 12:45:56 +04:00
Eelco Dolstra 10f9a8e77d Add a test for the non-blocking GC 2021-10-15 16:52:37 +02:00
Eelco Dolstra ac54c6faa6 Fix main GC thread exiting 2021-10-15 16:36:48 +02:00
Yorick fcb8af550f
Restore parent mount namespace in restoreProcessContext
This ensures any started processes can't write to /nix/store (except
during builds). This partially reverts 01d07b1e, which happened because
of #2646.

The problem was only happening after nix downloads anything, causing
me to suspect the download thread. The problem turns out to be:
"A  process  can't  join a new mount namespace if it is sharing
filesystem-related attributes with another process", in this case this
process is the curl thread.

Ideally, we might kill it before spawning the shell process, but it's
inside a static variable in the getFileTransfer() function. So
instead, stop it from sharing FS state using unshare(). A strategy
such as the one from #5057 (single-threaded chroot helper binary) is
also very much on the table.

Fixes #4337.
2021-10-15 16:25:49 +02:00
Eelco Dolstra e0936ae38f Fix crash when a GC client disconnects
The client thread can't just delete its own thread object from
connections, it has to detach it.
2021-10-15 16:12:21 +02:00
Eelco Dolstra 304180d0de Memoize queryReferrers() 2021-10-15 12:20:23 +02:00
yvt a9d9e55551 Add another path where a Rosetta 2 configuration file is possibly located 2021-10-15 09:48:15 +09:00
Eelco Dolstra 17e6ebcc90 Speed up GC by marking entire closures as live 2021-10-14 14:13:57 +02:00
Eelco Dolstra 0154fa30cf Remove GCState 2021-10-14 13:52:49 +02:00
Eelco Dolstra 0317ffdad3 Move deleteFromStore() 2021-10-14 13:34:48 +02:00
Eelco Dolstra 0be8cc1466 pathInfoCache: Use the entire base name as the cache key
This fixes a bug in the garbage collector where if a path
/nix/store/abcd-foo is valid, but we do a
isValidPath("/nix/store/abcd-foo.lock") first, then a negative entry
for /nix/store/abcd is added to pathInfoCache, so /nix/store/abcd-foo
is subsequently considered invalid and deleted.
2021-10-14 13:28:22 +02:00
Eelco Dolstra eab934cb2a Make the canReachRoots() traversal non-recursive 2021-10-14 12:34:32 +02:00
Eelco Dolstra 09b14ea97a Cleanup 2021-10-14 10:04:13 +02:00
Eelco Dolstra 35c98a59c5 Fix GC when there are cycles in the referrers graph
(where "referrers" includes the reverse of derivation outputs and
derivers). Now we do a full traversal to look if we can reach any
root. If not, all paths reached can be deleted.
2021-10-13 12:12:44 +02:00
Eelco Dolstra 1785ba2980 Simplify 2021-10-13 12:12:44 +02:00
Eelco Dolstra 262520fcfe Use a thread per connection 2021-10-13 12:12:44 +02:00
Eelco Dolstra ff453b06f9 Fix auto-gc 2021-10-13 12:12:44 +02:00
Eelco Dolstra 8614cf1334 Non-blocking garbage collector
The garbage collector no longer blocks other processes from
adding/building store paths or adding GC roots. To prevent the
collector from deleting store paths just added by another process,
processes need to connect to the garbage collector via a Unix domain
socket to register new temporary roots.
2021-10-13 12:12:44 +02:00
Eelco Dolstra 9947f1646a Remove syncWithGC() 2021-10-13 12:12:44 +02:00
Eelco Dolstra 8eac7dfad4 Remove trash directory 2021-10-13 12:12:44 +02:00
Eelco Dolstra abd685d373 Merge branch 'feature/comp-level' of https://github.com/tomberek/nix 2021-10-13 10:45:44 +02:00
Eelco Dolstra 5176b072ed Cleanup 2021-10-12 16:43:00 +02:00
Eelco Dolstra 3a778ea8a0 Merge branch 'nix-repl-download-interruption' of https://github.com/Ma27/nix 2021-10-12 16:34:38 +02:00
Tom Bereknyei 03bb8f84e0 Add compression level for NARs
Based off on @dtzWill's #2276
2021-10-12 02:14:36 -04:00
regnat 7466048d39 (partially) Revert "Don't copy in rethrow"
This reverts some parts of commit
8430a8f086 which was trying to rethrow
some exceptions while we weren’t in the context of a `catch` block,
causing some weird “terminate called without an active exception”
errors.

Fix #5368
2021-10-11 10:51:22 +02:00
Sergei Trofimovich d7d6fe44d6 libstore-tests: add libutil dependency (fix static link failure)
In https://github.com/NixOS/nix/pull/5350 we noticed link failures
pkgsStatic.nixUnstable. Adding explicit dependency on libutil fixes
libstore-tests linking.
2021-10-08 07:16:12 +01:00
Maximilian Bosch 0872659002
nix repl: properly deal with interruptions
When I stop a download with Ctrl-C in a `nix repl` of a flake, the REPL
refuses to do any other downloads:

    nix-repl> builtins.getFlake "nix-serve"
    [0.0 MiB DL] downloading 'https://api.github.com/repos/edolstra/nix-serve/tarball/e9828a9e01a14297d15ca41 error: download of 'e9828a9e01' was interrupted
    [0.0 MiB DL]
    nix-repl> builtins.getFlake "nix-serve"
    error: interrupted by the user
    [0.0 MiB DL]

To fix this issue, two changes were necessary:

* Reset the global `_isInterrupted` variable: only because a single
  operation was aborted, it should still be possible to continue the
  session.
* Recreate a `fileTransfer`-instance if the current one was shut down by
  an abort.
2021-10-07 23:58:02 +02:00
Eelco Dolstra 66c4b20d8b Typo 2021-10-07 13:34:04 +02:00
Eelco Dolstra c6718a9d95 Don't reset the logger in a vfork
9c766a40cb broke logging from the
daemon, because commonChildInit is called when starting the build hook
in a vfork, so it ends up resetting the parent's logger. So don't
vfork.

It might be best to get rid of vfork altogether, but that may cause
problems, e.g. when we call an external program like git from the
evaluator.
2021-10-06 13:54:59 +02:00
Eelco Dolstra fd57e7074f
Merge pull request #5335 from edolstra/socket-paths
Support arbitrary-length socket paths
2021-10-05 17:36:07 +02:00
Eelco Dolstra 3b7f4c7d9d Add FIXME about ptsname 2021-10-05 11:04:46 +02:00
Eelco Dolstra 43d4d75e22 Connect/bind Unix domain sockets in a child process
In the child process, we can do a chdir() and avoid the problem of the
path not fitting into sockaddr_un.
2021-10-05 10:44:59 +02:00
Eelco Dolstra 77ebbc9f54 Add a test for RefScanSink and clean up the code
Issue #5322.
2021-10-04 14:29:42 +02:00
Eelco Dolstra ef34fd0656 scanForReferences(): Use a StorePathSet 2021-10-04 13:47:38 +02:00
Sergei Trofimovich 621aa65325 local-derivation-goal.cc: downgrade "warning: rewriting hashes in..." down to debug
Before the changes when building the whole system with
`contentAddressedByDefault = true;` we get many noninformative messages:

    $ nix build -f nixos system --keep-going
    ...
    warning: rewriting hashes in '/nix/store/...-clang-11.1.0.drv.chroot/nix/store/...-11.1.0'; cross fingers
    warning: rewriting hashes in '/nix/store/...-clang-11.1.0.drv.chroot/nix/store/...-11.1.0-dev'; cross fingers
    warning: rewriting hashes in '/nix/store/...-clang-11.1.0.drv.chroot/nix/store/...-11.1.0-python'; cross fingers
    error: 2 dependencies of derivation '/nix/store/...-hub-2.14.2.drv' failed to build
    warning: rewriting hashes in '/nix/store/...-subversion-1.14.1.drv.chroot/nix/store/...-subversion-1.14.1-dev'; cross fingers
    warning: rewriting hashes in '/nix/store/...-subversion-1.14.1.drv.chroot/nix/store/...-subversion-1.14.1-man'; cross fingers
    ...

Let's downgrade these messages down to debug().
2021-10-01 17:41:44 +01:00
Eelco Dolstra 7cc220825d
Merge pull request #5167 from Ma27/keep-failed-on-ssh-remote-build
nix-store --serve: pass on `settings.keepFailed` from SSH store
2021-10-01 16:35:02 +02:00
John Ericson 242f9bf3dc std::visit by reference
I had started the trend of doing `std::visit` by value (because a type
error once mislead me into thinking that was the only form that
existed). While the optomizer in principle should be able to deal with
extra coppying or extra indirection once the lambdas inlined, sticking
with by reference is the conventional default. I hope this might even
improve performance.
2021-09-30 21:35:09 +00:00
Eelco Dolstra 6b5efeafd1
Merge pull request #5295 from Ma27/bmcheck-fod-mismatch
build: also throw hash-mismatch errors if `buildMode == bmCheck`
2021-09-29 10:13:45 +02:00
Maximilian Bosch bb1a851bcf
build: also throw hash-mismatch errors if buildMode == bmCheck
This actually bit me quite recently in `nixpkgs` because I assumed that
`nix-build --check` would also error out if hashes don't match anymore[1]
and so I wrongly assumed that I couldn't reproduce the mismatch error.

The fix is rather simple, during the output registration a so-called
`delayedException` is instantiated e.g. if a FOD hash-mismatch occurs.
However, in case of `nix-build --check` (or `--rebuild` in case of `nix
build`), the code-path where this exception is thrown will never be
reached.

By adding that check to the if-clause that causes an early exit in case
of `bmCheck`, the issue is gone. Also added a (previously failing)
test-case to demonstrate the problem.

[1] https://github.com/NixOS/nixpkgs/pull/139238, the underlying issue
    was that `nix-prefetch-git` returns different hashes than `fetchgit`
    because the latter one fetches submodules by default.
2021-09-27 15:44:39 +02:00
Eelco Dolstra 8430a8f086 Don't copy in rethrow 2021-09-27 14:38:10 +02:00
Eelco Dolstra 362d8f925e
Merge pull request #5253 from edolstra/flake-ifd
Don't allow IFD in flakes by default
2021-09-24 10:48:23 +02:00
Eelco Dolstra ea9df6fe51 Shut down write side before draining the read side
This is important if the remote side *does* execute
nix-store/nix-daemon successfully, but stdout is polluted
(e.g. because the remote user's bashrc script prints something to
stdout). In that case we have to shutdown the write side to force the
remote nix process to exit.
2021-09-23 18:01:04 +02:00
Eelco Dolstra 994348e9e0 SSHStore / LegacySSHStore: Show a better error message if the remote is "nologin"
Instead of

  error: serialised integer 7161674624452356180 is too large for type 'j'

we now get

  error: 'nix-store --serve' protocol mismatch from 'sshtest@localhost', got 'This account is currently not available.'

Fixes https://github.com/NixOS/nixpkgs/issues/37287.
2021-09-23 17:50:29 +02:00
Eelco Dolstra 60642aa5e2 Remove risky char * 2021-09-23 12:07:50 +02:00
Eelco Dolstra 198fa786a1 Add some more instrumentation 2021-09-23 11:42:33 +02:00
Eelco Dolstra d8c10028d9 Make setDefault() typed 2021-09-22 14:15:35 +02:00
Eelco Dolstra bcd73ebf60 Add missing #include
Fixes #5282.
2021-09-22 12:14:50 +02:00
Michael Bishop 374fe49ff7 set the PER_LINUX32 personality flag, when building for armv6l-linux or armv7l-linux
this prevents 32bit builds from detecting a 64bit kernel and picking the wrong target
2021-09-19 23:07:10 -03:00
Gregor Kleen fd67a0f927 Fix scheme argument to s3 cache 2021-09-17 10:45:19 +02:00
Emily 56025ad3b1 sandbox: allow Rosetta 2 on Darwin
This allows sandboxed x86_64-darwin builds on aarch64-darwin.
2021-09-15 02:02:03 +01:00
Eelco Dolstra 4b738fc7a9 Add 'nix profile wipe-history' command 2021-09-14 20:35:41 +02:00
Eelco Dolstra f359b9981b Generations -> profile versions 2021-09-14 19:57:45 +02:00
Eelco Dolstra 817562e694 Add "nix profile rollback" command 2021-09-14 19:32:33 +02:00
Eelco Dolstra d589a6aa8a
Merge pull request #5247 from edolstra/stablize-ca-references
Remove the 'ca-references' feature check
2021-09-14 15:42:50 +02:00
Eelco Dolstra 01a4fa3b6e Advise using --extra-experimental-features instead of --experimental-features
Fixes #3737.
2021-09-14 13:56:36 +02:00
Eelco Dolstra 761ac9d584 Remove the 'ca-references' feature check
Fixes #3422.
Fixes #4425.
2021-09-14 13:53:20 +02:00
Eelco Dolstra 76e368a3b4 Fix macOS build 2021-09-14 10:07:31 +02:00
Eelco Dolstra 4ed66735b6 RunOptions: Use designated initializers
Also get rid of _killStderr because it wasn't actually checked
anywhere.
2021-09-13 23:31:04 +02:00
Eelco Dolstra ff09acd1f9 Remove tabs 2021-09-10 11:00:50 +02:00
Eelco Dolstra 1e43bc6dc0
Merge pull request #5224 from baloo/baloo/5089/force-nss_dns-load
preloadNSS: fixup nss_dns load
2021-09-09 10:37:41 +02:00
Arthur Gautier 3b72741f23 preloadNSS: load NSS before threads are started
preloadNSS is not thread-safe, this commit moves it before we start the
first thread.

Signed-off-by: Arthur Gautier <baloo@superbaloo.net>
2021-09-08 18:29:31 +00:00
Arthur Gautier 0b42a0f781 preloadNSS: fixup nss_dns load
Before this commit, the dns lookup in preloadNSS would still go through
nscd. This did not have the effect of loading the nss_dns.so as expected
(nss_dns.so being out of reach from within the sandbox).

Should LOCALDOMAIN environment variable be defined, nss will completely
avoid nscd and will do its dns resolution on its own.

By temporarly setting LOCALDOMAIN variable before calling in NSS, we can
force NSS to load the shared libraries as expected.

Fixes #5089

Signed-off-by: Arthur Gautier <baloo@superbaloo.net>
2021-09-06 23:13:48 +00:00
regnat 497225b07d Don’t create lockfiles with an invalid path name
Store paths are only allowed to contain a limited subset of the
alphabet, which doesn’t include `!`. So don’t create lockfiles that
contain this `!` character as that would otherwise confuse (and break)
the gc.

Fix #5176
2021-09-02 09:57:41 +02:00
Eelco Dolstra f73d911628 Style 2021-09-01 21:46:25 +02:00
Eelco Dolstra 2cb7a502a4 Merge branch 'short-circuit-subst' of https://github.com/Kha/nix 2021-09-01 21:45:04 +02:00
Maximilian Bosch 50edbc4ddf
nix-store --serve: pass on settings.keepFailed from SSH store
When doing e.g.

    nix-build -A package --keep-failed --option \
      builders \
      'ssh://mfhydra?remote-store=/home/bosch/store x86_64-linux - 10 4 big-parallel'

this doesn't work properly because this build-setting is ignored.

I changed this behavior by passing the `settings.keepFailed` through the
serve-protocol to remote machines to make sure that I can introspect the
build-directory (which is particularly helpful when I have to look at a
`config.log` from a failed build for instance).
2021-08-31 13:11:46 +02:00
Eelco Dolstra f3b8b4040e
Merge pull request #5071 from NixOS/dont-send-xp-features-to-the-daemon
Don’t send the experimental-features to the daemon
2021-08-31 11:55:39 +02:00
Eelco Dolstra eda0fee160
Merge pull request #5175 from Pamplemousse/make
Don't overwrite user provided `lib*_LDFLAGS`
2021-08-30 12:44:29 +02:00
regnat b2bce915ad Don’t accept experimental features from the client
If the client sends an “experimental features” setting, just ignore it
2021-08-30 10:48:05 +02:00
Pamplemousse a4c6d319a8 Don't overwrite user provided lib*_LDFLAGS
Signed-off-by: Pamplemousse <xav.maso@gmail.com>
2021-08-25 08:59:19 -07:00
Magic_RB 8438114399
Add ignored_acls setting
Signed-off-by: Magic_RB <magic_rb@redalder.org>
2021-08-14 21:46:09 +02:00
Piotr Szubiakowski 9f13cb31e8
Install pkg-config files in the correct location
Use `$(libdir)` while installing .pc files looks like a more generic
solution. For example, it will work for distributions like RHEL or
Fedora where .pc files are installed in `/usr/lib64/pkgconfig`.
2021-08-13 21:08:58 +00:00
Pamplemousse 0da416f820 15f4d4f follow up
* libstore: `bz2` should not be linked
  * libutil: `zlib.h` should not be included

Signed-off-by: Pamplemousse <xav.maso@gmail.com>
2021-08-10 16:04:53 -07:00
Eelco Dolstra 8943e3176d
Merge pull request #5111 from Pamplemousse/clean
Minor maintenance cleaning
2021-08-09 20:05:03 +02:00
Sebastian Ullrich a0f97b1f54 Expand docstring of Store::querySubstitutablePathInfos 2021-08-09 15:58:50 +02:00
Eelco Dolstra 4c5ce2a345
Merge pull request #5104 from andir/refscan-race
Fix potential race-condition in reference scanning code
2021-08-09 14:49:24 +02:00
Andreas Rammhold a9cb1ca32c libstore: use set instead of list for waiter list
This replaces the O(n) search complexity in our insert code with a
lookup of O(log n). It also makes removing waitees easier as we can use
the extract method provided by the set class.
2021-08-08 14:05:38 +02:00
Sebastian Ullrich 12f50b6510 Short-circuit querying substituters on success 2021-08-08 13:24:13 +02:00
Andreas Rammhold b2d3976163 Fix potential race-condition in reference scanning code
Previously the code ensures that the isBase32 array would only be
initialised once in a single-threaded context. If two threads happen to
call the function before the initialisation was completed both of them
would have completed the initialization step. This allowed for a
race-condition where one thread might be done with the initialization
but the other thread sets all the fields to false again. For a brief
moment the base32 detection would then produce false-negatives.
2021-08-07 19:10:25 +02:00
Pamplemousse d64cb33e90 Remove unused struct in libstore
Signed-off-by: Pamplemousse <xav.maso@gmail.com>
2021-07-30 10:34:28 -07:00
regnat d9ba3385a9 Don’t send the experimental-features to the daemon
The experimental features are, well, experimental, and shouldn’t be
carelessly and transparently enabled.
Besides, some (`ca-derivations` at least) need to be enabled at startup
in order to work properly.
So it’s better to just require that daemon be started with the right
`experimental-features` option.

Fix #5017
2021-07-30 10:34:50 +02:00
Eelco Dolstra 72c5bac39d Revert no longer necessary change 2021-07-26 13:50:18 +02:00
Eelco Dolstra fe1f34fa60 Low-latency closure copy
This adds a new store operation 'addMultipleToStore' that reads a
number of NARs and ValidPathInfos from a Source, allowing any number
of store paths to be copied in a single call. This is much faster on
high-latency links when copying a lot of small files, like .drv
closures.

For example, on a connection with an 50 ms delay:

Before:

  $ nix copy --to 'unix:///tmp/proxy-socket?root=/tmp/dest-chroot' \
    /nix/store/90jjw94xiyg5drj70whm9yll6xjj0ca9-hello-2.10.drv \
    --derivation --no-check-sigs
  real    0m57.868s
  user    0m0.103s
  sys     0m0.056s

After:

  real    0m0.690s
  user    0m0.017s
  sys     0m0.011s
2021-07-26 13:31:09 +02:00
Eelco Dolstra 9957315ce0 RemoteStore::buildPaths(): Handle evalStore 2021-07-22 22:50:48 +02:00
Eelco Dolstra a7b7fcfb16 Remove redundant RealisedPath::closure() call 2021-07-22 22:43:18 +02:00
Eelco Dolstra eb6db4fd38 buildPaths(): Add an evalStore argument
With this, we don't have to copy the entire .drv closure to the
destination store ahead of time (or at all). Instead, buildPaths()
reads .drv files from the eval store and copies inputSrcs to the
destination store if it needs to build a derivation.

Issue #5025.
2021-07-22 09:59:51 +02:00
Eelco Dolstra 668abd3e57 copyPaths: Pass store by reference 2021-07-22 09:59:51 +02:00
Eelco Dolstra 8d9f7048cd Use eval-store in more places
In particular, this now works:

  $ nix path-info --eval-store auto --store https://cache.nixos.org nixpkgs#hello

Previously this would fail as it would try to upload the hello .drv to
cache.nixos.org. Now the .drv is instantiated in the local store, and
then we check for the existence of the outputs in cache.nixos.org.
2021-07-22 09:59:51 +02:00
Eelco Dolstra 95e915a993 DummyStore: Remove redundant method 2021-07-22 09:59:51 +02:00
Eelco Dolstra e9848beca7 nix-build: Copy drv closure between eval store and build store 2021-07-22 09:59:51 +02:00
Eelco Dolstra 3d9de41a5b Hacky fast closure copying mechanism 2021-07-22 09:59:51 +02:00
Eelco Dolstra dfda499326 Downgrade warning message
If a store doesn't support GC, then we don't need to warn about the
inability to create roots.
2021-07-22 09:58:50 +02:00