Commit graph

8441 commits

Author SHA1 Message Date
Eelco Dolstra 7515617ad0 Backport getLine tests from lazy-trees 2023-01-11 13:49:39 +01:00
Théophane Hufschmitt a3ba80357d
Merge pull request #7543 from obsidiansystems/typed-string-context
Parse string context elements properly
2023-01-11 07:09:37 +01:00
Robert Hensing f58c301112
Merge pull request #7541 from hercules-ci/check-manual-links
Check links in the manual
2023-01-10 23:07:38 +01:00
Robert Hensing fefa3a49ce doc/manual: Apply suggestions from code review
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-01-10 22:30:41 +01:00
Robert Hensing e79f935718 doc/manual: Fix broken internal links
The targets I could find.
2023-01-10 22:30:41 +01:00
Robert Hensing 34a1e0d29b doc/manual: Introduce @docroot@ as a stable base for includable snippets
This way the links are clearly within the manual (ie not absolute paths),
while allowing snippets to reference the documentation root reliably,
regardless of at which base url they're included.
2023-01-10 22:30:41 +01:00
John Ericson 5576d5e987 Parse string context elements properly
Prior to this change, we had a bunch of ad-hoc string manipulation code
scattered around. This made it hard to figure out what data model for
string contexts is.

Now, we still store string contexts most of the time as encoded strings
--- I was wary of the performance implications of changing that --- but
whenever we parse them we do so only through the
`NixStringContextElem::parse` method, which handles all cases. This
creates a data type that is very similar to `DerivedPath` but:

 - Represents the funky `=<drvpath>` case as properly distinct from the
   others.

 - Only encodes a single output, no wildcards and no set, for the
   "built" case.

(I would like to deprecate `=<path>`, after which we are in spitting
distance of `DerivedPath` and could maybe get away with fewer types, but
that is another topic for another day.)
2023-01-10 13:10:49 -05:00
John Ericson da64f026dd Make clear that StorePathWithOutputs is a deprecated type
- Add a comment

- Put `OutputsSpec` in a different header (First part of #6815)

- Make a few stray uses of it in new code use `DerivedPath` instead.
2023-01-10 11:27:19 -05:00
Eelco Dolstra 59cc920cc0 Add a FIXME 2023-01-10 15:20:30 +01:00
Eelco Dolstra 7f1af270dd Clean up toDerivedPaths() logic 2023-01-10 15:08:46 +01:00
Eelco Dolstra 1123c42f90
Apply suggestions from code review
Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
2023-01-10 14:57:35 +01:00
Eelco Dolstra b4dc68f0be Show string in error message 2023-01-10 14:56:03 +01:00
Eelco Dolstra b80e4b57da ExtraInfo -> ExtraPathInfo 2023-01-10 14:52:49 +01:00
Eelco Dolstra 8e923bf4c5 Merge remote-tracking branch 'origin/master' into fix-7417 2023-01-10 14:35:06 +01:00
Will Bush 05b13aff3d
Fix typo in example for builtin function map 2023-01-06 23:04:43 -06:00
Théophane Hufschmitt 8d88c3b347
Merge pull request #7307 from hercules-ci/derivation-goal-improve-comment
libstore/derivation-goal: Elaborate a TODO for performance concern
2023-01-06 13:07:57 +01:00
Eelco Dolstra 420ccecc1e
Merge pull request #7557 from NixOS/fix-7529
On macOS with auto-uid-allocation and sandboxing, use the correct gid
2023-01-06 12:35:55 +01:00
Naïm Favier f1ee4ece80
Don't check NixOS modules
NixOS modules can be paths. Rather than dig further down into the layer
violation, don't check anything specific to NixOS modules.
2023-01-05 18:23:30 +01:00
Eelco Dolstra 3a98107170
Merge pull request #7542 from edolstra/gc-deadlock
Fix deadlock between auto-GC and addTempRoot()
2023-01-05 17:08:23 +01:00
Eelco Dolstra 0fe2b222d5
Merge pull request #7539 from tweag/fix-nix-why-depends--derivation
Fix `nix why-depends --derivation`
2023-01-05 15:32:04 +01:00
Eelco Dolstra 4e84b532ed On macOS with auto-uid-allocation and sandboxing, use the correct gid
macOS doesn't have user namespacing, so the gid of the builder needs
to be nixbld. The logic got "has sandboxing enabled" confused with
"has user namespaces".

Fixes #7529.
2023-01-05 04:58:55 -08:00
Eelco Dolstra 6991e558dd Move macOS sandbox files to sr/libstore/build 2023-01-04 04:50:45 -08:00
Eelco Dolstra 609a7dc059 Include macOS sandbox files in the Nix binary
This basically reverts 6e5165b773.
It fixes errors like

  sandbox-exec: <internal init prelude>:292:47: unable to open sandbox-minimal.sb: not found

when trying to run a development Nix installed in a user's home
directory.

Also, we're trying to minimize the number of installed files
to make it possible to deploy Nix as a single statically-linked
binary.
2023-01-04 04:36:07 -08:00
Naïm Favier 3c968191f1
move unsafeDiscardReferences out of outputChecks
It's not a check.
2023-01-03 18:53:01 +01:00
Eelco Dolstra d4d1ca8b11 nix --version: Print the data directory 2023-01-03 08:30:49 -08:00
Naïm Favier 15f7fa59be
unsafeDiscardReferences
Adds a new boolean structured attribute
`outputChecks.<output>.unsafeDiscardReferences` which disables scanning
an output for runtime references.

    __structuredAttrs = true;
    outputChecks.out.unsafeDiscardReferences = true;

This is useful when creating filesystem images containing their own embedded Nix
store: they are self-contained blobs of data with no runtime dependencies.

Setting this attribute requires the experimental feature
`discard-references` to be enabled.
2023-01-03 17:19:16 +01:00
Eelco Dolstra 28d5b5cd45 Fix deadlock between auto-GC and addTempRoot()
Previously addTempRoot() acquired the LocalStore state lock and waited
for the garbage collector to reply. If the garbage collector is in the
same process (as it the case with auto-GC), this would deadlock as
soon as the garbage collector thread needs the LocalStore state lock.

So now addTempRoot() uses separate Syncs for the state that it
needs. As long at the auto-GC thread doesn't call addTempRoot() (which
it shouldn't), it shouldn't deadlock.

Fixes #3224.
2023-01-03 15:20:21 +01:00
Eelco Dolstra 224b56f10e Move creation of the temp roots file into its own function
This also moves the file handle into its own Sync object so we're not
holding the _state while acquiring the file lock. There was no real
deadlock risk here since locking a newly created file cannot block,
but it's still a bit nicer.
2023-01-03 14:51:23 +01:00
Eelco Dolstra ae31b5f50f
Merge pull request #7497 from rski/master
src/libstore: Print the reason opening the DB failed
2023-01-03 12:44:14 +01:00
Eelco Dolstra d33d15a48b Put the --show-trace hint in the logical place 2023-01-02 20:53:58 +01:00
Eelco Dolstra c548e35498 Don't use state.positions[noPos]
This caused traces 'at «none»:0: (source not available)'.
2023-01-02 20:53:58 +01:00
Eelco Dolstra 6b69652385 Merge remote-tracking branch 'origin/master' into coerce-string 2023-01-02 20:53:39 +01:00
Théophane Hufschmitt 8cac451fce Fix why-depends for CA derivations (again)
This has the same goal as b13fd4c58e81b2b2b0d72caa5ce80de861622610,but
achieves it in a different way in order to not break
`nix why-depends --derivation`.
2023-01-02 17:42:22 +01:00
Théophane Hufschmitt 105d74eb81 Revert "Fix why-depends for CA derivations"
This reverts commit b13fd4c58e.
2023-01-02 15:44:04 +01:00
Théophane Hufschmitt 9af16c5f74
Merge pull request #5941 from hercules-ci/optimize-intersectAttrs
Optimize intersectAttrs performance
2023-01-02 15:22:38 +01:00
Valentin Gagarin e0c4a95611 antiquotation -> string interpolation
as proposed by @mkaito[1] and @tazjin[2] and discussed with @edolstra
and Nix maintainers

[1]: https://github.com/NixOS/nix.dev/pull/267#issuecomment-1270076332
[2]: https://github.com/NixOS/nix.dev/pull/267#issuecomment-1270201979

Co-authored-by: John Ericson <git@JohnEricson.me>
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2023-01-02 14:38:57 +01:00
Théophane Hufschmitt fb8fc6fda6
Merge pull request #7478 from hercules-ci/make-sure-initNix-called
libstore: Make sure that initNix has been called
2023-01-02 14:12:49 +01:00
Valentin Gagarin 9cdf8ededb remove redundant re-definition of store derivations 2023-01-02 13:37:59 +01:00
Théophane Hufschmitt cfd6c7fc9b
Merge pull request #7485 from fricklerhandwerk/doc-store-derivation
define "store derivation"
2023-01-02 13:26:41 +01:00
Théophane Hufschmitt b3285c7722
Merge pull request #7351 from NaN-git/fix-mkString
cleanup eval.hh/eval.cc
2023-01-02 11:41:52 +01:00
Théophane Hufschmitt e8a3e58171
Merge pull request #7521 from ncfavier/migration-deadlock
Release shared lock before acquiring exclusive lock
2023-01-02 11:08:43 +01:00
Steven Shaw 84b0893725
Fix error message 2023-01-01 12:37:43 +10:00
Eelco Dolstra 8c52f8ea9d
Merge pull request #7524 from ncfavier/sandbox-paths-closure
doc: sandbox-paths computes closures
2022-12-29 19:45:51 +01:00
Eelco Dolstra 8227fe819e
Merge pull request #7504 from edolstra/nix-develop-personality
nix develop: Set personality
2022-12-29 19:42:45 +01:00
Naïm Favier d5d2f50ebb
doc: sandbox-paths computes closures 2022-12-28 17:09:20 +01:00
Naïm Favier 81c3f99b36
Release shared lock before acquiring exclusive lock
In principle, this should avoid deadlocks where two instances of Nix are
holding a shared lock on big-lock and are both waiting to get an
exclusive lock.

However, it seems like `flock(2)` is supposed to do this automatically,
so it's not clear whether this is actually where the problem comes from.
2022-12-27 15:58:14 +01:00
Robert Hensing 336908cf4c Optimize intersectAttrs performance
Always traverse the shortest set.
2022-12-24 14:51:05 +01:00
Robert Hensing aba6eb348e libstore: Make sure that initNix has been called
Prevent bugs like https://github.com/cachix/cachix/pull/477
2022-12-24 14:39:30 +01:00
Philipp Otterbein 8af839f48c remove undefined function 2022-12-24 12:19:53 +01:00
Philipp Otterbein a6e9d9cb2f remove function makeImmutableStringWithLen 2022-12-24 12:09:06 +01:00
Eelco Dolstra c164d304f3 nix develop: Set personality
This makes 'nix develop' set the Linux personality in the same way
that the actual build does, allowing a command like 'nix develop
nix#devShells.i686-linux.default' on x86_64-linux to work correctly.
2022-12-23 16:33:55 +01:00
Eelco Dolstra 14f7dae3e4
Merge pull request #7503 from edolstra/fix-dirOf
Fix CanonPath::dirOf() returning a string_view of a temporary
2022-12-23 16:17:48 +01:00
Eelco Dolstra 64c60f7241 Fix CanonPath::dirOf() returning a string_view of a temporary
https://hydra.nixos.org/build/202837872
2022-12-23 15:32:54 +01:00
rski d034ed1891 src/libstore: Print the reason opening the DB failed
Without this, the error is lost, and it makes for a hard to debug
situation. Also remove some of the busyness inside the sqlite_open_v2
args.

The errcode returned is not the extended one. The only way to make open
return an extended code, would be to add SQLITE_OPEN_EXRESCODE to the
flags. In the future it might be worth making this change,
which would also simplify the existing SQLiteError code.
2022-12-23 02:55:51 +02:00
Eelco Dolstra c9eee5a84d
Merge pull request #7493 from mupdt/primops-storeDir-test-non-standard-path
primops `storeDir` test uses `settings.nixStore`
2022-12-22 16:18:48 +01:00
mupdt a33e45b60b primops storeDir test uses settings.nixStore 2022-12-21 07:01:57 -05:00
Valentin Gagarin 7797661a70 link "store derivation" to glossary definition 2022-12-21 11:42:50 +01:00
Valentin Gagarin 3a66d82e1d update description of "store derivation" in installables section
a store derivation is not a store path itself, it has a store path.
2022-12-21 11:42:22 +01:00
mupdt bc8ab21c5a [PDT] TDE-3114: prevent a race-condition when creating the S3 cache 2022-12-21 04:50:40 -05:00
Eelco Dolstra 5c97b5a398 InstallableFlake::toDerivedPaths(): Support paths and store paths
This makes 'nix build' work on paths (which will be copied to the
store) and store paths (returned as is). E.g. the following flake
output attributes can be built using 'nix build .#foo':

  foo = ./src;
  foo = self.outPath;
  foo = builtins.fetchTarball { ... };
  foo = (builtins.fetchTree { .. }).outPath;
  foo = builtins.fetchTree { .. } + "/README.md";
  foo = builtins.storePath /nix/store/...;

Note that this is potentially risky, e.g.

  foo = /.;

will cause Nix to try to copy the entire file system to the store.

What doesn't work yet:

  foo = self;
  foo = builtins.fetchTree { .. };

because we don't handle attrsets with an outPath attribute in it yet,
and

  foo = builtins.storePath /nix/store/.../README.md;

since result symlinks have to point to a store path currently (rather
than a file inside a store path).

Fixes #7417.
2022-12-20 15:11:44 +01:00
Eelco Dolstra bda879170f EvalState::copyPathToStore(): Return a StorePath 2022-12-20 14:58:39 +01:00
Eelco Dolstra 845fc3f605 Merge toDerivations() into toDerivedPaths()
toDerivedPaths() now returns DerivedPathWithInfo, which is DerivedPath
with some attributes needed by 'nix profile' etc.

Preparation for #7417.
2022-12-20 14:24:14 +01:00
Eelco Dolstra 8332ac6a1d
Merge pull request #7451 from edolstra/abstract-pos
Introduce AbstractPos
2022-12-20 12:55:13 +01:00
Théophane Hufschmitt 000dd77d8d
Merge pull request #7473 from hercules-ci/sqlite-error
Improve sqlite error messages
2022-12-20 11:27:30 +01:00
Théophane Hufschmitt c3d522dc51
Merge pull request #7480 from nrdxp/fix-develop-drv
fix(develop): make `nix develop` drv recreatable
2022-12-20 07:41:46 +01:00
Timothy DeHerrera 94cf0da7b2
fix(develop): make nix develop drv recreatable 2022-12-19 13:16:06 -07:00
Domen Kožar f118e661e0
Merge pull request #7462 from rapenne-s/improve_messaging_reusing_trusted_substituter
Inform user instead of warning them when using a trusted substituter
2022-12-19 16:04:01 +00:00
Eelco Dolstra d00bfe4833
Merge pull request #7450 from edolstra/canon-path
Add CanonPath wrapper to represent canonicalized paths
2022-12-19 16:21:11 +01:00
Robert Hensing c965f35de7 Improve sqlite error messages
They did not include the detailed error message, losing essential
information for troubleshooting.

Example message:

    warning: creating statement 'insert or rplace into NARs(cache, hashPart, namePart, url, compression, fileHash, fileSize, narHash, narSize, refs, deriver, sigs, ca, timestamp, present) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1)': at offset 10: SQL logic error, near "rplace": syntax error (in '/tmp/nix-shell.grQ6f7/nix-test/tests/binary-cache/test-home/.cache/nix/binary-cache-v6.sqlite')

It's not the best example; more important information will be in
the message for e.g. a constraint violation.

I don't see why this specific error is printed as a warning, but
that's for another commit.
2022-12-17 14:51:37 +01:00
Solène Rapenne d0660c6c0b
printMsg replacement by printInfo
Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
2022-12-16 09:34:22 +01:00
Taeer Bar-Yam e5eb05c599 getBuildLog: factor out resolving derivations 2022-12-15 15:58:54 -05:00
Eelco Dolstra 0687e16c4a Fix a crash in DerivedPath::Built::toJSON() with impure derivations
The use of 'nullptr' here didn't result in a null JSON value, but in a
nullptr being cast to a string, which aborts.
2022-12-15 16:02:27 +01:00
Solène Rapenne 98e01da0b1 warnings: switch to info level when using a saved substituter 2022-12-14 14:11:21 +01:00
Naïm Favier 1f3c0a3c1d
Allow disabling build users by unsetting build-users-group
Unsetting `build-users-group` (without `auto-allocate-uids` enabled)
gives the following error:

```
src/libstore/lock.cc:25: static std::unique_ptr<nix::UserLock> nix::SimpleUserLock::acquire(): Assertion `settings.buildUsersGroup != ""' failed.
```

Fix the logic in `useBuildUsers` and document the default value
for `build-users-group`.
2022-12-14 00:40:30 +01:00
Eelco Dolstra 46b3c026fc
Merge pull request #7455 from rapenne-s/documentation_fix
Add anchors and links to definition
2022-12-13 17:26:52 +01:00
Eelco Dolstra e2a4e7aecd
Merge pull request #4543 from obsidiansystems/indexed-store-path-outputs
Low level `<drvPath>^<outputName>` installable syntax to match existing `<highLevelInstallable>^<outputNames>` syntax
2022-12-13 17:22:29 +01:00
Eelco Dolstra c9b0a85b08 Restore display of source lines for stdin/string inputs 2022-12-13 16:00:44 +01:00
Eelco Dolstra aea97f07a3 Fix compilation 2022-12-13 15:23:12 +01:00
Eelco Dolstra 1315133b50
Improve cast safety
Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
2022-12-13 12:38:33 +01:00
Solène Rapenne 09860c16ce documentation: use sections instead of list items 2022-12-13 11:47:44 +01:00
Solène Rapenne e43b0f5b12 documentation: link flake URL term to definition 2022-12-13 11:47:38 +01:00
Solène Rapenne ae27181f16 documentation: fix link to definition 2022-12-13 11:47:22 +01:00
Théophane Hufschmitt 6e31d27cba
Merge pull request #6741 from Mindavi/nix-no-gc
support building with --enable-gc=no
2022-12-13 10:36:59 +01:00
Eelco Dolstra b3fdab28a2 Introduce AbstractPos
This makes the position object used in exceptions abstract, with a
method getSource() to get the source code of the file in which the
error originated. This is needed for lazy trees because source files
don't necessarily exist in the filesystem, and we don't want to make
libutil depend on the InputAccessor type in libfetcher.
2022-12-13 00:50:43 +01:00
John Ericson f61d575810 Merge branch 'indexed-store-path-outputs' of github.com:obsidiansystems/nix into indexed-store-path-outputs 2022-12-12 17:43:10 -05:00
John Ericson 5273cf4c97 Merge remote-tracking branch 'upstream/master' into indexed-store-path-outputs 2022-12-12 17:40:49 -05:00
John Ericson 32ae715db1
Fix typos in the docs
Thanks!

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2022-12-12 17:37:45 -05:00
John Ericson dabb03b8d0 Merge remote-tracking branch 'upstream/master' into indexed-store-path-outputs 2022-12-12 17:36:02 -05:00
John Ericson d8c1c24c78 Adjust docs 2022-12-12 17:32:24 -05:00
Rick van Schijndel 672ee88231 support building with --enable-gc=no
Some minor changes fixing the build without boehm.
Fixes NixOS#6250
2022-12-12 23:31:30 +01:00
John Ericson dc075dcdd0
Apply suggestions from code review
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2022-12-12 16:26:10 -05:00
Eelco Dolstra 900b854084 Add CanonPath wrapper to represent canonicalized paths 2022-12-12 19:57:32 +01:00
Florian Friesdorf 8618c6cc75 Simplify loop, feedback from @tfc and @Ericson2314 2022-12-12 18:41:00 +00:00
John Ericson 7b122d43a4 Fix stack context notes to not rely on order
Make everything be in the form "while ..." (most things were already),
and in particular *don't* use other propositions that must go after or
before specific "while ..." clauses to make sense.
2022-12-12 18:41:00 +00:00
Florian Friesdorf d269976be6 Show stack trace above error message
Save developers from scrolling by displaying the error message last,
below the stack trace.
2022-12-12 18:41:00 +00:00
Florian Friesdorf 173dcb0af9 Don't reverse stack trace when showing
When debugging nix expressions the outermost trace tends to be more useful
than the innermost. It is therefore printed last to save developers from
scrolling.
2022-12-12 18:41:00 +00:00
Eelco Dolstra e408af82ab
Merge pull request #7436 from edolstra/enable-lang-tests
Enable some language tests that were accidentally disabled
2022-12-12 17:39:02 +01:00
Eelco Dolstra 17f81d3215 Fix unused variable warning 2022-12-12 16:41:46 +01:00
Benoit de Chezelles a456630a5a Allow to disable global flake-registry with "" 2022-12-12 15:32:02 +01:00
Eelco Dolstra 7a85199f87 Add docs from the lazy-trees branch 2022-12-12 14:06:13 +01:00
Eelco Dolstra fd0ed75118 Support flake references in the old CLI
Fixes #7026.
2022-12-12 14:05:52 +01:00
Eelco Dolstra ae5f62a894 Move isUri() and resolveUri() out of filetransfer.cc
These are purely related to NIX_PATH / -I command line parsing, so put
them in libexpr.
2022-12-12 14:05:35 +01:00
Eelco Dolstra 7396844676
Merge pull request #7421 from edolstra/lazy-trees-trivial-changes
Trivial changes from the lazy-trees branch
2022-12-12 13:52:56 +01:00
John Ericson 1879c7c95e
Merge branch 'master' into indexed-store-path-outputs 2022-12-12 07:33:36 -05:00
Eelco Dolstra e558e089ba -I description: Use -I examples 2022-12-12 12:51:23 +01:00
Eelco Dolstra 877ea1dab8
Use get_ptr()
Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
2022-12-12 12:46:13 +01:00
Eelco Dolstra 037d5c4299
Manual improvements
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2022-12-12 12:43:44 +01:00
Eelco Dolstra 786402365e Cleanup 2022-12-12 12:40:51 +01:00
Eelco Dolstra f3d1e92856
Update URL
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2022-12-12 12:37:55 +01:00
Eelco Dolstra 8272cd9dec
Optimize string concatenation
Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
2022-12-12 12:36:19 +01:00
Andreas Rammhold dbc8547664 Ignore the enforceDeterminism value
We used to set enforceDeterminism to true in the settings (by default)
and thus did send a non-zero value over the wire. The value should
probably be ignored as it should only matter if nrRounds is non-zero
as well.

Having the old code here where the value is expected to be zero only
works with the same version of Nix where we are sending zero. We
should always test this against older Nix versions being client or
server as otherwise upgrade in larger networks might be a pain.

Fixes 8e0946e8df
2022-12-10 17:55:07 +01:00
Théophane Hufschmitt 2affb19c92
Merge pull request #7409 from tweag/fix-6383
check the store for input before failing (hopefully fix #6383)
2022-12-09 06:33:30 +01:00
Taeer Bar-Yam 3b27181ee5 fix missing function after rebase 2022-12-08 16:59:21 -05:00
regnat 04b113f6cb Fix nix log with CA derivations
Fix #6209

When trying to run `nix log <installable>`, try first to resolve the derivation pointed to
by `<installable>` as it is the resolved one that holds the build log.

This has a couple of shortcomings:
1. It’s expensive as it requires re-reading the derivation
2. It’s brittle because if the derivation doesn’t exist anymore or can’t
   be resolved (which is the case if any one of its build inputs is missing),
   then we can’t access the log anymore

However, I don’t think we can do better (at least not right now).
The alternatives I see are:
1. Copy the build log for the un-resolved derivation. But that means a
   lot of duplication
2. Store the results of the resolving in the db. Which might be the best
   long-term solution, but leads to a whole new class of potential
   issues.
2022-12-08 16:03:20 -05:00
Eelco Dolstra 703d863a48 Trivial changes from the lazy-trees branch 2022-12-07 14:06:34 +01:00
Linus Heckemann 8e0946e8df Remove repeat and enforce-determinism options
These only functioned if a very narrow combination of conditions held:

- The result path does not yet exist (--check did not result in
  repeated builds), AND
- The result path is not available from any configured substituters, AND
- No remote builders that can build the path are available.

If any of these do not hold, a derivation would be built 0 or 1 times
regardless of the repeat option. Thus, remove it to avoid confusion.
2022-12-07 11:36:48 +01:00
Taeer Bar-Yam 1c8de7d3d0 improve style 2022-12-06 11:25:38 -05:00
Eelco Dolstra 54906bc93c
Merge pull request #7382 from fricklerhandwerk/doc-automatic-uid
move documentation on `auto-allocate-uids` to options docs
2022-12-06 11:31:34 +01:00
Eelco Dolstra 484578d3f9
Tweak option descriptions 2022-12-06 10:30:36 +01:00
Taeer Bar-Yam 8c7661da09 check the store for input before failing (hopefully fix #6383) 2022-12-05 23:22:38 -05:00
Théophane Hufschmitt bfcf30f0ab
Merge pull request #7390 from Radvendii/fix-6383
check the store for input before failing (hopefully fix #6700)
2022-12-05 18:04:41 +01:00
Taeer Bar-Yam e4f9f3bf24 check the store for input before failing (hopefully fix #6700) 2022-12-05 11:27:47 -05:00
Eelco Dolstra e0ab2069c9
Consistent capitalisation 2022-12-05 16:55:55 +01:00
Jörg Thalheim cccd57c022 getMaxCPU: fix cgroup path
Given this typo I am not sure if it has been tested.
2022-12-04 18:22:12 +01:00
Eelco Dolstra c582150360
Merge pull request #7394 from edolstra/fix-7268
Lower verbosity of exceptions in getMaxCPU()
2022-12-02 17:02:32 +01:00
Eelco Dolstra 3a8341f57e
Merge pull request #7395 from obsidiansystems/evaluating-to-calling
Change "while evaluating <fun>" to "while *calling*" in trace
2022-12-02 15:53:57 +01:00
John Ericson 19c5394971 Change "while evaluating <fun>" to "while *calling*" in trace
The old way was not correct.

Here is an example:
```
 $ nix-instantiate --eval --expr 'let x = a: throw "asdf"; in x 1' --show-trace
error: asdf

       … while evaluating 'x'

       at «string»:1:9:

            1| let x = a: throw "asdf"; in x 1
             |         ^

       … from call site

       at «string»:1:29:

            1| let x = a: throw "asdf"; in x 1
             |                             ^
```
and yet also:
```
 $ nix-instantiate --eval --expr 'let x = a: throw "asdf"; in x' --show-trace
<LAMBDA>
```

Here is the thing: in both cases we are evaluating `x`!

Nix is a higher-order languages, and functions are a sort of value. When
we write `x = a: ...`, `a: ...` is the expression that `x` is being
defined to be, and that is already a value. Therefore, we should *never*
get an trace that says "while evaluating `x`", because evaluating `a:
...` is *trival* and nothing happens during it!

What is actually happening here is we are applying `x` and evaluating
its *body* with arguments substituted for parameters. I think the
simplest way to say is just "while *calling* `x`", and so that is what I
changed it to.
2022-12-02 09:14:12 -05:00
Eelco Dolstra fa99ef6a87 getMaxCPU(): Lower verbosity level for ignored exceptions
Fixes #7268.
2022-12-02 15:03:40 +01:00
Valentin Gagarin 0ce5742bec
Merge pull request #7381 from aakropotkin/doc-ltoa-conflicts
doc: listToAttrs: document repeated keys
2022-12-02 14:19:34 +01:00
Eelco Dolstra 1e6a5d1ff6 Clean up cgroup handling in getMaxCPU()
Also, don't assume in LocalDerivationGoal that cgroups are mounted on
/sys/fs/cgroup.
2022-12-02 12:59:13 +01:00
Eelco Dolstra 1211e59a03 Move cgroup.{cc,hh} to libutil 2022-12-02 12:38:03 +01:00
Alex Ameen ef524013aa doc: listToAttrs: add extra whitespace 2022-12-01 10:32:45 -06:00
Eelco Dolstra f1e1ba9fe0 Really fix 'nix store make-content-addressed --json'
https://hydra.nixos.org/log/mcgypcf9vj4n8vdmw7lj3l05c899v73w-nix-2.12.0pre20221201_16b03f0-x86_64-unknown-linux-musl.drv
2022-12-01 16:29:09 +01:00
Alex Ameen ec18b7d09b doc: listToAttrs: fix line wrapping 2022-11-30 23:21:09 -06:00
Alex Ameen ad46726546 doc: listToAttrs: document repeated keys 2022-11-30 22:53:41 -06:00
Valentin Gagarin 0ea62670ed move documentation on auto-allocate-uids to options docs
this is where it belongs and can be found together with the other
options.
2022-12-01 04:40:02 +01:00
Eelco Dolstra 0b092bd87f nix store make-content-addressed: Fix JSON construction
Fixes

  error: [json.exception.type_error.301] cannot create object from initializer list

in tests/fetchClosure.sh.
2022-11-30 13:46:33 +01:00
Eelco Dolstra fbc53e97ed
Merge pull request #3600 from NixOS/auto-uid-allocation
Automatic UID allocation
2022-11-29 14:01:42 +01:00
Eelco Dolstra 4f762e2b02 Restore ownership of / for non-uid-range builds 2022-11-29 13:10:53 +01:00
Eelco Dolstra af8a32143b
Merge pull request #7358 from ncfavier/repl-exit-newline
repl: print a newline on ctrl-D
2022-11-29 11:31:43 +01:00
Eelco Dolstra 67bcb99700 Add a setting for enabling cgroups 2022-11-28 21:54:02 +01:00
Eelco Dolstra ff12d1c1a1 Check that auto-allocated UIDs don't clash with existing accounts 2022-11-28 20:49:17 +01:00
Eelco Dolstra dbf78a7ada
Merge pull request #7313 from yorickvP/nlohmann-everywhere
Replace src/libutil/json.cc with nlohmann
2022-11-28 15:03:48 +01:00
Naïm Favier 9b35cc716b
use logger->cout
in order to avoid potential problems with the progress bar

Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2022-11-28 14:59:06 +01:00
Naïm Favier 04ec157517
repl: print a newline on ctrl-D 2022-11-28 10:38:23 +01:00
Eelco Dolstra 5b798f6cae Fix random client failures during GC server shutdown
We need to close the GC server socket before shutting down the active
GC client connections, otherwise a client may (re)connect and get
ECONNRESET. But also handle ECONNRESET for resilience.

Fixes random failures like

  GC socket disconnected
  connecting to '/tmp/nix-shell.y07M0H/nix-test/default/var/nix/gc-socket/socket'
  sending GC root '/tmp/nix-shell.y07M0H/nix-test/default/store/kb5yzija0f1x5xkqkgclrdzldxj6nnc6-non-blocking'
  reading GC root from client: error: unexpected EOF reading a line
  1 store paths deleted, 0.00 MiB freed
  error: reading from file: Connection reset by peer

in gc-non-blocking.sh.
2022-11-27 12:57:18 +01:00
Eelco Dolstra 0b4c4d7434 Don't use GC_STRNDUP
It calls strlen() on the input (rather than simply copying at most
`size` bytes), which can fail if the input is not zero-terminated and
is inefficient in any case.

Fixes #7347.
2022-11-25 22:30:56 +01:00
John Ericson 26534f141c
Merge branch 'master' into indexed-store-path-outputs 2022-11-25 08:14:32 -05:00
Théophane Hufschmitt bc9692a6b7
Merge pull request #7337 from Radvendii/why-depends-ca
Fix why-depends for CA derivations
2022-11-23 20:16:14 +01:00
Taeer Bar-Yam bd8571a5c3 add explanation and test 2022-11-23 12:06:47 -05:00
Taeer Bar-Yam b13fd4c58e Fix why-depends for CA derivations
why-depends assumed that we knew the output path of the second argument.
For CA derivations, we might not know until it's built. One way to solve
this would be to build the second installable to get the output path.

In this case we don't need to, though. If the first installable (A)
depends on the second (B), then getting the store path of A will
necessitate having the store path B. The contrapositive is, if the store
path of B is not known (i.e. it's a CA derivation which hasn't been
built), then A does not depend on B.
2022-11-23 11:39:50 -05:00
Eelco Dolstra 6292d5616e Merge remote-tracking branch 'origin/master' into auto-uid-allocation 2022-11-23 11:16:09 +01:00
Eelco Dolstra 05d0892443
Merge pull request #7328 from edolstra/nix-build-stats
nix build --json: Include build statistics
2022-11-22 14:41:15 +01:00
Eelco Dolstra 3d23b9d032 SimpleUserLock::getSupplementaryGIDs(): Filter out main gid
This avoids having the user's gid in the supplementary group list as
well.
2022-11-22 10:26:17 +01:00
Eelco Dolstra b37c2d84b6 Always call setgroups()
We shouldn't skip this if the supplementary group list is empty,
because then the sandbox won't drop the supplementary groups of the
parent (like "root").
2022-11-22 10:26:17 +01:00
Eelco Dolstra 02c02ee7c3
Merge pull request #6456 from amjoseph-nixpkgs/seccomp-mips
local-derivation-goal.cc: enable seccomp filters for mips{32,64}
2022-11-21 23:03:00 +01:00
Eelco Dolstra c776dfbb35
Use hex for startId
Co-authored-by: Linus Heckemann <git@sphalerite.org>
2022-11-21 18:46:55 +01:00
Eelco Dolstra 9d17ce07e8 AutoUserLock: If sandboxing is disabled, use the build users group
We have to use a gid that has write access to the Nix store.
2022-11-21 12:55:49 +01:00
Eelco Dolstra f0baa5c128 nix build --json: Include build statistics
Example:

  # nix build -L --extra-experimental-features cgroups --impure --expr 'with import <nixpkgs> {}; runCommand "foo" {} "dd if=/dev/urandom bs=1M count=1024 | md5sum; mkdir $out"' --json
  [
    {
      "cpuSystem": 1.911431,
      "cpuUser": 1.214249,
      "drvPath": "/nix/store/xzdqz67xba18hljhycp0hwfigzrs2z69-foo.drv",
      "outputs": {
        "out": "/nix/store/rh9mc9l2gkpq8kn2sgzndr6ll7ffjh6l-foo"
      },
      "startTime": 1669024076,
      "stopTime": 1669024079
    }
  ]
2022-11-21 12:06:01 +01:00
Eelco Dolstra e7a5b76844 Rename derivedPathsWithHintsToJSON -> builtPathsToJSON 2022-11-21 11:56:20 +01:00
Eelco Dolstra 82d5cf2a76 Fix macOS build 2022-11-21 11:45:41 +01:00
Eelco Dolstra 653b32a78f Merge remote-tracking branch 'origin/master' into auto-uid-allocation 2022-11-21 11:33:23 +01:00
Eelco Dolstra ec45f4b82e Fix indentation 2022-11-21 11:12:45 +01:00
Eelco Dolstra 300753d594 nix build --json: Include build statistics
Example:

  # nix build -L --extra-experimental-features cgroups --impure --expr 'with import <nixpkgs> {}; runCommand "foo" {} "dd if=/dev/urandom bs=1M count=1024 | md5sum; mkdir $out"' --json
  [
    {
      "cpuSystem": 1.911431,
      "cpuUser": 1.214249,
      "drvPath": "/nix/store/xzdqz67xba18hljhycp0hwfigzrs2z69-foo.drv",
      "outputs": {
        "out": "/nix/store/rh9mc9l2gkpq8kn2sgzndr6ll7ffjh6l-foo"
      },
      "startTime": 1669024076,
      "stopTime": 1669024079
    }
  ]
2022-11-21 10:49:01 +01:00
Eelco Dolstra f538ee4342 Rename derivedPathsWithHintsToJSON -> builtPathsToJSON 2022-11-21 09:38:08 +01:00
Eelco Dolstra e6b71f84a0 Use cgroup.kill to quickly kill cgroups 2022-11-18 16:59:36 +01:00
Eelco Dolstra fa68eb367e Get CPU stats from the cgroup 2022-11-18 13:40:59 +01:00
Eelco Dolstra 20f66c6889 Indentation 2022-11-18 13:40:48 +01:00
Eelco Dolstra 128910ba23 Separate cgroup support from auto-uid-allocation
The new experimental feature 'cgroups' enables the use of cgroups for
all builds. This allows better containment and enables setting
resource limits and getting some build stats.
2022-11-18 10:39:28 +01:00
Eelco Dolstra f1ab082ac4 createTempDir(): Use std::atomic 2022-11-18 09:37:11 +01:00
Eelco Dolstra f423d4425f Fix segfault in unprivileged mode 2022-11-17 11:56:45 +01:00
Yorick 09f00dd4d0
Replace src/libutil/json.cc with nlohmann json generation 2022-11-16 16:50:50 +01:00
Théophane Hufschmitt 62960f3291
Merge pull request #7134 from yorickvP/disable-dbg-on-complete
Temporarily disable the debugger during completion evaluation
2022-11-16 11:28:40 +01:00
Théophane Hufschmitt 60dea270d0
Swallow the error in a more idiomatic way 2022-11-16 10:34:32 +01:00
Robert Hensing bcd298d39b libstore/derivation-goal: Elaborate a TODO for performance concern 2022-11-15 17:57:40 +01:00
Théophane Hufschmitt 4bf70b74a7
Merge pull request #7294 from tobim/support-aws-sdk-1.10
libstore: link to aws-crt-cpp
2022-11-15 16:51:09 +01:00
Théophane Hufschmitt 3ade5f5d60
Merge pull request #7283 from hercules-ci/issue-6572
Fix #6572 `requires non-existent output`
2022-11-15 16:24:24 +01:00
Théophane Hufschmitt daf1423a4a
Merge pull request #7260 from ncfavier/readFile-scan-references
Restrict `readFile` context to references that appear in the string
2022-11-15 16:22:28 +01:00
Robert Hensing 7e162c69fe derivation-goal: Fix requires non-existing output error
It occurred when a output of the dependency was already available,
so it didn't need rebuilding and didn't get added to the
inputDrvOutputs.
This process-related info wasn't suitable for the purpose of finding
the actual input paths for the builder. It is better to do this in
absolute terms by querying the store.
2022-11-14 17:52:55 +01:00
Théophane Hufschmitt 8b4352d79b Merge remote-tracking branch 'nixos/master' into readFile-scan-references 2022-11-14 15:00:05 +01:00
Et7f3 efadeee8fd
build: use pkg-config for lowdown 2022-11-12 23:04:58 +01:00
Tobias Mayer 07f2cb1e8f
libstore: link to aws-crt-cpp
This change is needed to support aws-sdk-cpp 1.10 and newer.

I opted not to make this dependent on the sdk version because
the crt dependency has been in the interface of the older
sdk as well, and it was only coincidence that libstore didn't
make use of any privately defined symbols directly.
2022-11-12 14:34:23 +01:00
Naïm Favier e7ed9ae0c7
Restrict readFile context to references that appear in the string
When calling `builtins.readFile` on a store path, the references of that
path are currently added to the resulting string's context.

This change makes those references the *possible* context of the string,
but filters them to keep only the references whose hash actually appears
in the string, similarly to what is done for determining the runtime
references of a path.
2022-11-11 13:04:34 +01:00
Théophane Hufschmitt 9550b1d519
Merge pull request #7258 from ncfavier/fix-eval-error-fmt
Fix printing of eval errors with two format placeholders
2022-11-10 18:41:16 +01:00
Eelco Dolstra 6c6eff8ac4 Remove the SystemdCgroup feature 2022-11-10 17:24:12 +01:00
Eelco Dolstra 05d258667d Fix build on macOS 2022-11-08 08:00:29 -08:00
Eelco Dolstra 2fde7e0108 Split auto UID allocation from cgroups
Cgroups are now only used for derivations that require the uid-range
range feature. This allows auto UID allocation even on systems that
don't have cgroups (like macOS).

Also, make things work on modern systems that use cgroups v2 (where
there is a single hierarchy and no "systemd" controller).
2022-11-08 16:03:42 +01:00
Eelco Dolstra b378876894
Merge pull request #7264 from patricksjackson/remote-brackets
build-remote: Add brackets to error message
2022-11-07 16:59:29 +01:00
Eelco Dolstra 995f5f2e41
Merge pull request #7267 from fricklerhandwerk/build-task
manual: build action -> build task
2022-11-07 16:58:47 +01:00
Valentin Gagarin f7ab93b068 manual: build action -> build task
after discussing this with multiple people, I'm convinced that "build
task" is more precise: a derivation is not an action, but inert until it
is built. also it's easier to pronounce.

proposal: use "build task" for the generic concept "description of how
to derive new files from the contents of existing files". then it will
be easier to distinguish what we mean by "derivation" (a specific data
structure and Nix language value type) and "store derivation" (a
serialisation of a derivation into a file in the Nix store).
2022-11-06 13:28:18 +01:00
Patrick Jackson 907f52c337 build-remote: Add brackets to error message 2022-11-04 10:49:44 -07:00
Eelco Dolstra 40911d7dec Remove stray tab 2022-11-04 13:30:35 +01:00
Eelco Dolstra 6259fd7ea6 Fix indentation 2022-11-04 13:29:39 +01:00
Naïm Favier dad859ba0f
Fix printing of eval errors with two format placeholders 2022-11-04 12:41:38 +01:00
Eelco Dolstra b95faccf03 Merge remote-tracking branch 'origin/master' into auto-uid-allocation 2022-11-03 17:43:40 +01:00
Yorick 16f1720fd2
SourceExprCommand: swallow EvalError, add tests for this
Completing things that would error would print an ugly error in
the middle of your command line. Avoid printing this error.
2022-11-03 10:11:28 +01:00
Yorick 444af85552
Temporarily disable the debugger during completion evaluation
readline is not re-entrant, so entering the debugger from the
completioncallback results in an eventual segfault.

The workaround is to temporarily disable the debugger when searching
for possible completions.
2022-11-02 13:02:24 +01:00
Yorick 34ea0e2e7b
tarfile: set directory mode to at least 0500, don't extract fflags
We don't need SGID, or any ACL's. We also want to keep every dir +rx.
2022-11-01 16:01:38 +01:00
Eelco Dolstra 0edba4cc1e
Merge pull request #7231 from jfroche/fix/savedArgv-access
Move savedArgv into libmain
2022-10-31 16:35:08 +01:00
Théophane Hufschmitt 90ed041677
Merge pull request #7039 from Mic92/libfetchers-variant
libfetchers: avoid api.github.com ratelimit if no github token is set
2022-10-31 11:48:51 +01:00