Commit graph

2522 commits

Author SHA1 Message Date
Robert Hensing fba7be80eb Enable -Werror=switch-enum
switch statements must now match all enum values or disable the
warning.

Explicit is good. This has helped us find two bugs, after solving
another one by debugging.

From now on, adding to an enum will raise errors where they are
not explicitly handled, which is good for productivity, and helps
us decide the correct behavior in all usages.

Notably still excluded from this though are the cases where the
warning is disabled by local pragmas.

fromTOML.cc did not build despite a top-level pragma, so I've had
to resort to a makefile solution for that.
2023-04-03 18:45:20 +02:00
Robert Hensing 9470ee877d Allow open switch-enum in 5 places 2023-04-03 18:45:20 +02:00
Robert Hensing 3dac4c7874 Add explicit case statements where -Wswitch-enum would report them 2023-04-03 18:17:32 +02:00
Robert Hensing f3a6de6ba9
Merge pull request #8148 from hercules-ci/fix-issue-8119-printValue-tBlackhole-abort
eval: Fix crash on missing printValue tBlackhole case
2023-04-03 16:05:55 +02:00
Robert Hensing 1c55544a42 eval: Fix crash on missing printValue tBlackhole case
Fixes #8119
2023-04-03 15:32:42 +02:00
John Ericson eeecfacb43 Merge branch 'path-info' into ca-drv-exotic 2023-04-01 16:40:32 -04:00
John Ericson f7f44f7c96 Merge commit 'aa99005004bccc9be506a2a2f162f78bad4bcb41' into ca-drv-exotic 2023-04-01 15:15:32 -04:00
John Ericson f4ab297b31 Ensure all headers have #pragma once and are in API docs
`///@file` makes them show up in the internal API dos. A tiny few were
missing `#pragma once`.
2023-03-31 23:19:44 -04:00
John Ericson aa99005004 Merge remote-tracking branch 'upstream/master' into path-info
Also improve content-address.hh API docs.
2023-03-30 16:28:53 -04:00
Eelco Dolstra 02050bd055
Typo 2023-03-30 10:49:21 +02:00
Joachim Breitner 1b6cfe6fa1 More precise wording 2023-03-30 10:40:04 +02:00
Joachim Breitner 2e6b95dac7
Update src/libexpr/primops.cc
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2023-03-29 13:19:51 +02:00
Joachim Breitner 3ce6d72b2b
Update src/libexpr/primops.cc
Co-authored-by: asymmetric <lorenzo@mailbox.org>
2023-03-28 14:38:39 +02:00
Joachim Breitner 605c8f7789 Docs: Explain why import nixpkgs works in flakes 2023-03-28 09:35:49 +02:00
John Ericson 1d539aa287
Merge pull request #8073 from tweag/fix-root-channels-location
Fix root channels location
2023-03-27 09:37:53 -04:00
John Ericson 570829d67e
Merge pull request #7609 from obsidiansystems/hide-experimental-settings
Hide experimental settings
2023-03-27 09:19:29 -04:00
Théophane Hufschmitt fb67c1a1fb Factor out the generation of the profile/channel directory
Make sure that all the code paths use the same one, and that the
backwards-compatibility measures are probably in place when needed
2023-03-23 10:22:42 +01:00
Eelco Dolstra 16cb9b9f04 Fix rendering of fetchGit documentation
stripIndentation() doesn't support tabs, so the entire markdown ended
up indented and thus rendered as a code block.
2023-03-21 14:48:15 +01:00
John Ericson 296831f641 Move enabled experimental feature to libutil struct
This is needed in subsequent commits to allow the settings and CLI args
infrastructure itself to read this setting.
2023-03-20 11:05:22 -04:00
Linus Heckemann f1c9d83697 Only allow reference lock files when allow-dirty is set 2023-03-19 14:12:49 +01:00
Linus Heckemann 3a1de4c3fe Apply review suggestions
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2023-03-14 12:02:03 +01:00
Linus Heckemann e91596eb69 Allow specifying alternative paths for reading/writing flake locks
This allows having multiple separate lockfiles for a single
project, which can be useful for testing against different versions of
nixpkgs; it also allows tracking custom input overrides for remote
flakes without requiring local clones of these flakes.

For example, if I want to build Nix against my locally pinned nixpkgs,
and have a lock file tracking this override independently of future
updates to said nixpkgs:

nix flake lock --output-lock-file /tmp/nix-flake.lock --override-input nixpkgs flake:nixpkgs
nix build --reference-lock-file /tmp/nix-flake.lock

Co-Authored-By: Will Fancher <elvishjerricco@gmail.com>
2023-03-13 21:08:52 +01:00
Théophane Hufschmitt 39700c5cbe
Revert "Disable GC during coroutine execution + test" 2023-03-08 20:47:52 +01:00
Théophane Hufschmitt 4a6244dcf7
Merge pull request #7725 from yorickvP/check-coro-gc
Disable GC during coroutine execution + test
2023-03-08 09:51:46 +01:00
Valentin Gagarin f69d453c3e remove indentation in fetchGit attribute listing
also reword a confusing sentence and add links to Git terminology
2023-03-05 04:44:11 +01:00
Yorick 2683734936
Add talkative msg for coro gc debug 2023-03-03 11:43:47 +01:00
Eelco Dolstra 29abc8e764 Remove FormatOrString and remaining uses of format() 2023-03-02 15:57:54 +01:00
Yorick 176005749c
Always disable GC in a coroutine unless the patch is applied 2023-03-01 15:07:00 +01:00
Yorick 4c73eab923
DisableGC: replace by CoroutineContext, std::shared_ptr<void> 2023-03-01 13:55:41 +01:00
Yorick 53bb4a5327
tests/coro-gc: refactor and split into 3 tests 2023-03-01 13:55:41 +01:00
Yorick eaeb994d8b
Disable GC inside coroutines on mac OS 2023-03-01 13:55:41 +01:00
Yorick 0fd8f542a8
tests/coro-gc: create test for boehm stack patch
Regression test for #7679
2023-03-01 13:55:37 +01:00
John Ericson 5abd643c6d Merge branch 'path-info' into ca-drv-exotic 2023-02-28 12:46:00 -05:00
John Ericson d381248ec0 No inheritance for TextInfo and FixedOutputInfo 2023-02-28 12:14:11 -05:00
John Ericson 85bb865d20 Revert "Remove some designated initializers"
This reverts commit ee9eb83a84.
2023-02-28 11:57:20 -05:00
John Ericson d12f57c2c0 Merge remote-tracking branch 'upstream/master' into path-info 2023-02-28 11:34:34 -05:00
Eelco Dolstra 3d15dbadc2
Merge pull request #7911 from edolstra/revert-7689
Revert #7689
2023-02-28 08:46:55 +01:00
Théophane Hufschmitt eae89aca1b
Merge pull request #7776 from yorickvP/fix-path-escapes-7707
Properly escape local paths into URLs in fetchTree
2023-02-27 21:10:25 +01:00
Yorick 2c0866fc3f
fetchTree: convert fs path to url via ParsedURL::to_string 2023-02-27 15:30:04 +01:00
Eelco Dolstra dd93c12c6a Revert "getDefaultNixPath: actually respect {restrict,pure}-eval"
This reverts commit 1cba5984a6.
2023-02-27 15:11:36 +01:00
Eelco Dolstra e928c72cf9 Revert "Document default nix-path value"
This reverts commit dba9173a1d.
2023-02-27 14:16:49 +01:00
Robert Hensing 5d834c40d0 flakes: Differentiate self.outPath and self.sourceInfo.outPath
It would be incorrect to say that the `sourceInfo` has an `outPath`
that isn't the root. `sourceInfo` is about the root, whereas only
the flake may not be about the root. Thanks Eelco for pointing that
out.
2023-02-22 03:31:24 +01:00
Robert Hensing 904a107d16 flakes: Ensure that self.outPath == ./.
Users expect `self` to refer to the directory where the `flake.nix`
file resides.
2023-02-22 03:30:47 +01:00
Valentin Gagarin dda83a59c1
Merge pull request #7158 from sternenseemann/foldl-strict-accumulation-value 2023-02-19 23:54:14 +01:00
Et7f3 cec23f5dda ExprOpHasAttr,ExprSelect,stripIndentation,binds,formals: delete losts objects
We are looking for *$ because it indicate that it was constructed with a new but
not release. De-referencing shallow copy so deleting as whole might create
dangling pointer that's why we move it so we delete a empty containers + the
nice perf boost.
2023-02-16 19:53:55 +01:00
Et7f3 fa89d317b7 ExprString: Avoid copy of string 2023-02-12 05:49:45 +01:00
Et7f3 3d16f2a281 parser: use implicit rule 2023-02-12 05:49:45 +01:00
Eelco Dolstra 5978ceb271 Fix building with GCC 9
Nixpkgs on aarch64-linux is currently stuck on GCC 9
(https://github.com/NixOS/nixpkgs/issues/208412) and using gcc11Stdenv
doesn't work either.

So use c++2a instead of c++20 for now. Unfortunately this means we
can't use some C++20 features for now (like std::span).
2023-02-10 18:38:57 +01:00
Théophane Hufschmitt 9ebbe35817
Merge pull request #5588 from tweag/balsoft/xdg
Follow XDG Base Directory standard
2023-02-10 18:05:50 +01:00
Alexander Bantyev 2384d36083
A setting to follow XDG Base Directory standard
XDG Base Directory is a standard for locations for storing various
files. Nix has a few files which seem to fit in the standard, but
currently use a custom location directly in the user's ~, polluting
it:

- ~/.nix-profile
- ~/.nix-defexpr
- ~/.nix-channels

This commit adds a config option (use-xdg-base-directories) to follow
the XDG spec and instead use the following locations:

- $XDG_STATE_HOME/nix/profile
- $XDG_STATE_HOME/nix/defexpr
- $XDG_STATE_HOME/nix/channels

If $XDG_STATE_HOME is not set, it is assumed to be ~/.local/state.

Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
Co-authored-by: Tim Fenney <kodekata@gmail.com>
Co-authored-by: pasqui23 <pasqui23@users.noreply.github.com>
Co-authored-by: Artturin <Artturin@artturin.com>
Co-authored-by: John Ericson <Ericson2314@Yahoo.com>
2023-02-10 20:14:06 +04:00
Joachim Breitner e4a2a5c074
Documentation: builtins.fetchGit when used on a local path (#7706)
* Documentation:  builtins.fetchGit when used on a local path

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-02-08 11:53:28 +00:00
John Ericson 87ca46263d Merge branch 'master' into path-info 2023-02-02 09:55:07 -05:00
Eelco Dolstra e8ca49f6ef Fix clang compilation 2023-02-01 20:34:44 +01:00
John Ericson ee9eb83a84 Remove some designated initializers
With the switch to C++20, the rules became more strict, and we can no
longer initialize base classes. Make them comments instead.

(BTW
https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2287r1.html
this offers some new syntax for this use-case. Hopefully this will be
adopted and we can eventually use it.)
2023-02-01 11:25:56 -05:00
John Ericson 43414738a0 Merge remote-tracking branch 'upstream/master' into path-info 2023-02-01 10:02:30 -05:00
Eelco Dolstra 14b0b9ea5a
Merge pull request #7203 from graham33/feature/cpp20
Proposal: Use C++20
2023-02-01 15:41:04 +01:00
John Ericson b6c98752f6 Merge remote-tracking branch 'upstream/master' into path-info 2023-01-30 18:04:54 -05:00
Robert Hensing c9b9260f34
Merge pull request #7713 from obsidiansystems/more-rapid-check
Add more property tests
2023-01-30 18:54:53 +01:00
John Ericson 560142fec0 Make per-variant Arbitrary impls too
This is a nice idea that @roberth requested. If we could factor our a
generic `std::variant` impl as a follow-up it would be even better!
2023-01-30 10:56:00 -05:00
John Ericson adb3608034 Merge branch 'small-storePath-cleanups' into path-info 2023-01-30 09:46:43 -05:00
John Ericson ecd3e4ebd7 More property tests
Also put proper comparison methods on `DerivedPath` and
`NixStringContextElem`, which is needed for the tests but good in
general.
2023-01-29 17:09:59 -05:00
John Ericson ec0c0efec6 Allow unit test infra to be reused across libs' tests
This allows using Arbitrary "instances" defined in libstore-tests in
libexpr-tests, something we will leverage in a moment.
2023-01-29 13:52:57 -05:00
Naïm Favier dba9173a1d
Document default nix-path value 2023-01-27 15:25:07 +01:00
Naïm Favier 1cba5984a6
getDefaultNixPath: actually respect {restrict,pure}-eval
Previously, getDefaultNixPath was called too early: at initialisation
time, before CLI and config have been processed, when `restrictEval` and
`pureEval` both have their default value `false`. Call it when
initialising the EvalState instead, and use `setDefault`.
2023-01-27 13:28:57 +01:00
John Ericson e68e8e3cee Merge branch 'path-info' into ca-drv-exotic 2023-01-23 16:54:45 -05:00
John Ericson c67e0cc58c Merge remote-tracking branch 'upstream/master' into path-info 2023-01-23 11:47:20 -05:00
Robert Hensing 9b56683398
Merge pull request #7447 from aakropotkin/read-file-type
Read file type
2023-01-23 17:37:22 +01:00
Robert Hensing 0a9acefeb5
Merge pull request #7657 from obsidiansystems/fix-7655
Fix #7655
2023-01-23 15:42:59 +01:00
Alex Ameen 153ee460c5 primop: add readFileType, optimize readDir
Allows checking directory entry type of a single file/directory.

This was added to optimize the use of `builtins.readDir` on some
filesystems and operating systems which cannot detect this information
using POSIX's `readdir`.

Previously `builtins.readDir` would eagerly use system calls to lookup
these filetypes using other interfaces; this change makes these
operations lazy in the attribute values for each file with application
of `builtins.readFileType`.
2023-01-22 13:45:02 -06:00
John Ericson 0afdf4084c Fix #7655
We had some local variables left over from the older (more
complicated) implementation of this function. They should all be unused,
but one wasn't by mistake.

Delete them all, and replace the one that was still in use as intended.
2023-01-21 23:55:06 -05:00
Guillaume Maudoux a0642305ab
Use complete '__toString' attribute name
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-01-20 13:06:00 +01:00
Guillaume Maudoux a9fa2c758b Always display addErrorContext messages in (expanded) traces 2023-01-19 14:14:19 +01:00
Guillaume Maudoux 6228b6b950 Discuss re-entrant errors and design 2023-01-19 14:12:26 +01:00
Guillaume Maudoux ca7c5e08c1 Add tests for error traces, and fixes 2023-01-19 14:10:56 +01:00
Guillaume Maudoux e4726a0c79 Revert "Revert "Merge pull request #6204 from layus/coerce-string""
This reverts commit 9b33ef3879.
2023-01-19 13:23:04 +01:00
Eelco Dolstra 01f268322a Restore support for channel: URLs in fetchTarball
Fixes #7625.
2023-01-18 12:57:03 +01:00
Robert Hensing 9b33ef3879 Revert "Merge pull request #6204 from layus/coerce-string"
This reverts commit a75b7ba30f, reversing
changes made to 9af16c5f74.
2023-01-18 01:34:07 +01:00
John Ericson 7c82213813 Merge branch 'path-info' into ca-drv-exotic 2023-01-14 17:09:58 -05:00
John Ericson b3d91239ae Make ValidPathInfo have plain StorePathSet references like before
This change can wait for another PR.
2023-01-14 16:42:03 -05:00
John Ericson 056cc1c1b9 Merge remote-tracking branch 'upstream/master' into path-info 2023-01-14 14:27:28 -05:00
John Ericson ce2f91d356 Split OutputsSpec and ExtendedOutputsSpec, use the former more
`DerivedPath::Built` and `DerivationGoal` were previously using a
regular set with the convention that the empty set means all outputs.
But it is easy to forget about this rule when processing those sets.
Using `OutputSpec` forces us to get it right.
2023-01-11 18:57:18 -05:00
John Ericson a7c0cff07f Rename OutputPath -> ExtendedOutputPath
Do this prior to making a new more limitted `OutputPath` we will use in
more places.
2023-01-11 18:55:29 -05:00
John Ericson a8f45b5e5a Improve OutputsSpec slightly
A few little changes preparing for the rest.
2023-01-11 18:54:50 -05:00
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 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
John Ericson 81727f85cb Merge branch 'path-info' into ca-drv-exotic 2023-01-06 15:45:34 -05:00
John Ericson 46e942ff9e Do big rename to clean up code
- `PathReferences` -> `References`

- `PathReferences<StorePath>` -> `StoreReference`

- `references` -> `others`

- `hasSelfReference` -> `self`

And get rid of silly subclassing
2023-01-06 15:36:05 -05:00
John Ericson 7e1cfa97c6 Make derivation primop code for fixed output more concise 2023-01-06 12:52:16 -05:00
John Ericson 848b0832b5 Merge branch 'path-info' into ca-drv-exotic 2023-01-06 12:39:14 -05:00
John Ericson 6a168254ce Use named field initialization for references 2023-01-06 12:24:20 -05:00
John Ericson 989b8065b4 Merge branch 'path-info' into ca-drv-exotic 2023-01-06 10:56:22 -05:00
John Ericson e9fc1e4fdb Merge remote-tracking branch 'upstream/master' into path-info 2023-01-06 10:35:20 -05:00
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 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
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
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
mupdt a33e45b60b primops storeDir test uses settings.nixStore 2022-12-21 07:01:57 -05:00
Eelco Dolstra bda879170f EvalState::copyPathToStore(): Return a StorePath 2022-12-20 14:58:39 +01:00
Eelco Dolstra 8332ac6a1d
Merge pull request #7451 from edolstra/abstract-pos
Introduce AbstractPos
2022-12-20 12:55:13 +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
Solène Rapenne 98e01da0b1 warnings: switch to info level when using a saved substituter 2022-12-14 14:11:21 +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
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
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 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
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 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 f3d1e92856
Update URL
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2022-12-12 12:37:55 +01:00
Eelco Dolstra 703d863a48 Trivial changes from the lazy-trees branch 2022-12-07 14:06:34 +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
Alex Ameen ef524013aa doc: listToAttrs: add extra whitespace 2022-12-01 10:32:45 -06:00
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
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
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
Yorick 09f00dd4d0
Replace src/libutil/json.cc with nlohmann json generation 2022-11-16 16:50:50 +01:00
Théophane Hufschmitt 8b4352d79b Merge remote-tracking branch 'nixos/master' into readFile-scan-references 2022-11-14 15:00:05 +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
Naïm Favier dad859ba0f
Fix printing of eval errors with two format placeholders 2022-11-04 12:41:38 +01:00
Eelco Dolstra da2c61637b
Use _type
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2022-10-25 16:48:31 +02:00
Guillaume Maudoux d6f5734c63 Complete genericClosure tests 2022-10-25 01:57:18 +02:00
Guillaume Maudoux e93bf69b44 Rework error throwing, and test it 2022-10-25 01:46:10 +02:00
Shea Levy 334fa81d08
Mark flakes with .type = "flake".
Fixes #7186
2022-10-23 06:54:11 -04:00
Guillaume Maudoux 8bd8583bc7 Try to please clang with convoluted templates 2022-10-23 00:11:44 +02:00
Guillaume Maudoux 8c3afd2d68 Introduce an Error builder to tackle complexity 2022-10-22 23:37:54 +02:00
Graham Bennett c5fd34a14e Build with C++20 2022-10-22 14:24:25 +01:00
Guillaume Maudoux 4a909c142c Rollback unneeded throwFrameErrorWithTrace function 2022-10-20 14:25:11 +02:00
Guillaume Maudoux 31ce52a045 Fix context message being printed twice with forceStringNoCtx 2022-10-20 14:18:35 +02:00
Guillaume Maudoux 512f6be9b5 Reword incomparable types message 2022-10-20 14:17:05 +02:00
Guillaume Maudoux 520404f450 Revert custom position of 'if' blocks 2022-10-20 13:55:15 +02:00
Guillaume Maudoux b945b844a9 Initial frames support 2022-10-17 03:05:02 +02:00
Guillaume Maudoux 3f9f6ae127 Merge remote-tracking branch 'origin/master' into coerce-string 2022-10-16 20:39:19 +02:00
sternenseemann d0f2da214b primops: make nature of foldl' strictness clearer
* Clarify the documentation of foldl': That the arguments are forced
  before application (?) of `op` is necessarily true. What is important
  to stress is that we force every application of `op`, even when the
  value turns out to be unused.

* Move the example before the comment about strictness to make it less
  confusing: It is a general example and doesn't really showcase anything
  about foldl' strictness.

* Add test cases which nail down aspects of foldl' strictness:
  * The initial accumulator value is not forced unconditionally.
  * Applications of op are forced.
  * The list elements are not forced unconditionally.
2022-10-16 14:29:12 +02:00
Eelco Dolstra f3193edd87
Merge pull request #7149 from amjoseph-nixpkgs/pr/intersectAttrs/values
parseDrvName: remove doc/impl discrepancy, add test covering the gap
2022-10-12 10:00:39 +02:00
Adam Joseph 7ef71cd21f src/libexpr/primops.cc: parseDrvName: make documentation follow implementation
The documentation for `parseDrvName` does not agree with the implementation when
the derivation name contains a dash which is followed by something that is
neither a letter nor a digit.  This commit corrects the documentation to agree
with the implementation.
2022-10-08 17:21:34 -07:00
Eelco Dolstra 6806f20157
Merge pull request #7089 from NixOS/mention-accept-flake-config-in-warning
Mention `--accept-flake-config` in the related warning
2022-09-26 11:13:02 +02:00
Adam Joseph dc205c75a2 src/libexpr/primops.cc: correct definition for intersectAttrs
The current definition of `intersectAttrs` is incorrect:

> Return a set consisting of the attributes in the set e2 that also exist in the
> set e1.

Recall that (Nix manual, section 5.1):

> An attribute set is a collection of name-value-pairs (called attributes)

According to the existing description of `intersectAttrs`, the following should
evaluate to the empty set, since no key-value *pair* (i.e. attribute) exists in
both sets:

```
builtins.intersectAttrs { x=3; } {x="foo";}
```

And yet:

```
nix-repl> builtins.intersectAttrs { x=3; } {x="foo";}
{ x = "foo"; }
```

Clearly the intent here was for the *names* of the resulting attribute set to be
the intersection of the *names* of the two arguments, and for the values of the
resulting attribute set to be the values from the second argument.

This commit corrects the definition, making it match the implementation and intent.
2022-09-24 23:51:09 -07:00
Théophane Hufschmitt 371013c08d
Merge pull request #7010 from edolstra/ignore-shell
nix develop: Ignore stdenv's $SHELL
2022-09-24 12:55:53 +02:00
Théophane Hufschmitt 1a5d094be7
Mention --accept-flake-config in the related warning
Make sure that people who run Nix in non-interactive mode (and so don't have the possibility to interactively accept the individual flake configuration settings) are aware of this flag.

Fix #7086
2022-09-24 12:11:26 +02:00
Adam Joseph fb985f855c fetchurl.nix: change other use of __impure 2022-09-16 01:54:24 -07:00
Adam Joseph 673fd21b7c
Update src/libexpr/fetchurl.nix
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2022-09-16 08:51:14 +00:00
Adam Joseph b3550d9179 libexpr/fetchurl.nix: allow __impure fetch
This commit adds an optional `__impure` parameter to fetchurl.nix, which allows
the caller to use `libfetcher`'s fetcher in an impure derivation.  This allows
nixpkgs' patch-normalizing fetcher (fetchpatch) to be rewritten to use nix's
internal fetchurl, thereby eliminating the awkward "you can't use fetchpatch
here" banners scattered all over the place.

See also: https://github.com/NixOS/nixpkgs/pull/188587
2022-09-16 00:48:01 -07:00
Guillaume Maudoux 96f2dd99d3 fix remaining foo stuff 2022-09-11 23:09:36 +02:00
Guillaume Maudoux e412bb6d30 fix remaining fixtures 2022-09-11 22:58:59 +02:00
Guillaume Maudoux c7b901fd33 Cleanup error strings rebase 2022-09-11 01:34:19 +02:00
Guillaume Maudoux eb460a9529 WIP: broken merge but need a git checkpoint 2022-09-07 00:34:03 +02:00
Eelco Dolstra ece12a97d9 lockfile -> lock file for consistency 2022-09-06 19:20:31 +02:00
Eelco Dolstra a8b3d777fb Revert "Merge pull request #6621 from Kha/nested-follows"
This reverts commit c530cda345, reversing
changes made to 4adcdff5c1.
2022-09-01 15:26:19 +02:00
Sebastian Ullrich 6f65c11780 Fix overlapping flake follows 2022-08-28 11:50:25 +02:00
Sebastian Ullrich 2b9d381301 Fix nested flake input overrides 2022-08-28 11:47:25 +02:00
Eelco Dolstra a17ce0a8a9 Fix evaluation cache
98e361ad4c introduced a regression where
previously stored attributes were replaced by placeholders. As a
result, a command like 'nix build nixpkgs#hello' had to be executed at
least twice to get caching.

This code does not seem necessary for suggestions to work.
2022-08-24 21:19:43 +02:00
Naïm Favier 062e4fcdde
JSON: print paths as strings without copying them to the store
Makes `printValueAsJSON` not copy paths to the store for `nix eval
--json`, `nix-instantiate --eval --json` and `nix-env --json`.

Fixes https://github.com/NixOS/nix/issues/5612
2022-08-22 15:01:35 +02:00
Erik Arvstedt 53833dfb40 libexpr/flake: remove FIXME
Line 593 checks that all overrides (i.e. all elements of
`lockFlags.inputOverrides`) are members of `overridesUsed`.
2022-08-04 09:45:29 +02:00
Erik Arvstedt c9f446ede1 flakeref: fix comment 2022-08-04 09:45:28 +02:00
Eelco Dolstra ccbd906c86 Fix NIX_COUNT_CALLS=1
Also, make the JSON writer support std::string_view.

Fixes #6857.
2022-08-03 17:46:51 +02:00
Eelco Dolstra 12df8885cc Simplify the check for overrides on non-existent inputs 2022-07-13 13:40:40 +02:00
Ikko Ashimine 694a9dc282
Fix typo in flake.cc
non-existant -> non-existent
2022-07-13 01:10:32 +09:00
Théophane Hufschmitt 2dbd5ed0b4
Merge pull request #6663 from Ma27/follows-invalid-input
flakes: throw an error if `follows`-declaration for an input is invalid
2022-07-12 16:44:22 +02:00
Eelco Dolstra f6a434c8a4 Fix debug message 2022-07-12 11:53:34 +02:00
Maximilian Bosch 1f771065f1
Move follows-check into its own function 2022-07-12 11:25:33 +02:00
Maximilian Bosch 411111a3bc
Turn error for non-existant follows into a warning 2022-07-12 11:22:35 +02:00
Maximilian Bosch c1c37f3200
flakes: throw an error if follows-declaration for an input is invalid
I recently got fairly confused why the following expression didn't have
any effect

    {
      description = "Foobar";
      inputs.sops-nix = {
        url = github:mic92/sops-nix;
        inputs.nixpkgs_22_05.follows = "nixpkgs";
      };
    }

until I found out that the input was called `nixpkgs-22_05` (please note
the dash vs. underscore).

IMHO it's not a good idea to not throw an error in that case and
probably leave end-users rather confused, so I implemented a small check
for that which basically checks whether `follows`-declaration from
overrides actually have corresponding inputs in the transitive flake.

In fact this was done by accident already in our own test-suite where
the removal of a `follows` was apparently forgotten[1].

Since the key of the `std::map` that holds the `overrides` is a vector
and we have to find the last element of each vector (i.e. the override)
this has to be done with a for loop in O(n) complexity with `n` being
the total amount of overrides (which shouldn't be that large though).

Please note that this doesn't work with nested expressions, i.e.

    inputs.fenix.inputs.nixpkgs.follows = "...";

which is a known problem[2].

For the expression demonstrated above, an error like this will be
thrown:

    error: sops-nix has a `follows'-declaration for a non-existant input nixpkgs_22_05!

[1] 2664a216e5
[2] https://github.com/NixOS/nix/issues/5790
2022-07-12 10:18:38 +02:00
Ben Burdette cdcc349072
Merge branch 'master' into ignore-try 2022-07-11 11:29:22 -06:00
Ben Burdette a3629ab0cc move ignore-try to EvalSettings 2022-07-11 10:47:09 -06:00
Ben Burdette 6ac8200ff5 use util.hh class instead of local 2022-07-11 10:21:40 -06:00
Ben Burdette 69ea265fd2 'tryEval' not 'try clause' 2022-07-11 10:21:12 -06:00
Gytis Ivaskevicius b2703c73a4 builtins.traceVerbose: Post rebase fixes 2022-07-05 19:56:39 +03:00
Gytis Ivaskevicius ba1fe85b65 Add builtins.traceVerbose
Co-Authored-By: Silvan Mosberger <contact@infinisil.com>

Add builtins.traceVerbose tests
2022-07-05 19:44:26 +03:00
Eelco Dolstra 455177cbe0 src/libexpr/tests/primops.cc: Quote Nix expressions
Otherwise they don't survive reformatting, see the failure in
https://github.com/NixOS/nix/pull/6721.
2022-06-29 11:37:25 +02:00
Guillaume Girol e8109cf405 fetchGit: document shallow argument 2022-06-26 12:00:00 +00:00
Théophane Hufschmitt f06b6fa4fa
Merge pull request #6698 from tweag/forbid-tilde-paths-in-pure-mode
Forbid the tilde expansion in pure eval mode
2022-06-24 10:02:40 +02:00
Rick van Schijndel 2beb929753 eval-cache: cast rowId to correct type
Prevents errors when running with UBSan:

/nix/store/j5vhrywqmz1ixwhsmmjjxa85fpwryzh0-gcc-11.3.0/include/c++/11.3.0/bits/stl_pair.h:353:4: runtime error: load of value 229, which is not a valid value for type 'AttrType'
2022-06-23 21:11:08 +02:00
Théophane Hufschmitt 983efdbde4 Forbid the tilde expansion in pure eval mode
Fix #6684
2022-06-21 14:08:18 +02:00
Alexander Bantyev d82a3dc70d
flake.cc: Make non-flake overrides sticky
Overrides for inputs with flake=false were non-sticky, since they
changed the `original` in `flake.lock`. This fixes it, by using the same
locked original for both flake and non-flake inputs.
2022-06-13 20:49:16 +04:00
Ben Burdette 49ff4ef637 remove unused parameter 2022-06-10 12:22:36 -06:00
Eelco Dolstra 81a486c607
Shut up clang warnings 2022-06-02 21:19:54 +02:00
Ben Burdette 8cf6ae8664 use Counter class to count tryEval levels 2022-06-02 12:29:38 -06:00
Ben Burdette bc0d41e9ba print message with exceptions in a try clause 2022-06-02 12:17:28 -06:00
Ben Burdette 9151dbff88 ignore-try flag 2022-06-02 10:26:46 -06:00
Eelco Dolstra 8e8e9d8705
Respect the outputSpecified attribute
E.g. 'nix build nixpkgs#libxml2.dev' will build the 'dev' output.
2022-05-30 11:34:47 +02:00
Eelco Dolstra ec07a70979
Style fix 2022-05-27 11:25:05 +02:00