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2023-10-08StorePath: reject names starting with '.'edef
This has been the behaviour before Nix 2.4. It was dropped in a rewrite in 759947bf72c134592f0ce23d385e48095bd0a301, allowing the creation of store paths that aren't considered valid by older Nix versions or other Nix tooling. Nix 2.4 didn't ship in NixOS until 22.05, and stdenv.mkDerivation in nixpkgs drops leading periods since April 2022, so it's unlikely anyone is relying on the current lax behaviour. Closes #9091. Change-Id: I4a57bd9899e1b0dba56870ae5a1b680918a18ce9 (cherry picked from commit 24bda0c7b381e1a017023c6f7cb9661fae8560bd)
2023-10-02Revert "Adapt scheduler to work with dynamic derivations"John Ericson
This reverts commit 5e3986f59cb58f48186a49dcec7aa317b4787522. This un-implements RFC 92 but fixes the critical bug #9052 which many people are hitting. This is a decent stop-gap until a minimal reproduction of that bug is found and a proper fix can be made. Mostly fixed #9052, but I would like to leave that issue open until we have a regression test, so I can then properly fix the bug (unbreaking RFC 92) later. (cherry picked from commit 8440afbed756254784d9fea3eaab06649dffd390)
2023-10-01pathExists: isDir when endswith /.Robert Hensing
(cherry picked from commit f8a3893e8d77ce4a6e23719a0b2d88464cb84b9c)
2023-09-19Disable rapidcheck tests in the coverage runEelco Dolstra
https://hydra.nixos.org/build/233688539
2023-09-14Merge pull request #7661 from henrik-ch/repl-docThéophane Hufschmitt
improved help command listing.
2023-09-13Merge pull request #8959 from maralorn/print-parentThéophane Hufschmitt
Print parent activity field in json log
2023-09-12docs: make the nix develop --command example unambiguous (#8952)Emil Nikolov
2023-09-10Drop dead codeMatthew Kenigsberg
localPath is unused
2023-09-09Print parent activity field in json logmaralorn
2023-09-07fix: `nix shell` multiple commands example (#8950)thenbe
The `-c` flag belongs to `sh` not `nix shell`. As it stands, the command errors with: ``` $ nix shell nixpkgs#gnumake --command sh --command "cd src && make" sh: --command: invalid option ``` https://github.com/NixOS/nix/pull/8276 was good for readability, but it missed this since that PR used a find/replace script.
2023-09-07Merge pull request #8944 from fricklerhandwerk/fix-anchorRobert Hensing
fix invalid anchor link
2023-09-07Special-case error message to add extra informationJohn Ericson
The Derivation parser and old ATerm unfortunately leaves few ways to get nice errors when an old version of Nix encounters a new version of the format. The most likely scenario for this to occur is with a new client making a derivation that the old daemon it is communicating with cannot understand. The extensions we just created for dynamic derivation deps will add a version field, solving the problem going forward, but there is still the issue of what to do about old versions of Nix up to now. The solution here is to carefully catch the bad error from the daemon that is likely to indicate this problem, and add some extra context to it. There is another "Ugly backwards compatibility hack" in `remote-store.cc` that also works by transforming an error. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-09-07Allow dynamic derivation deps in `inputDrvs`John Ericson
We use the same nested map representation we used for goals, again in order to save space. We might someday want to combine with `inputDrvs`, by doing `V = bool` instead of `V = std::set<OutputName>`, but we are not doing that yet for sake of a smaller diff. The ATerm format for Derivations also needs to be extended, in addition to the in-memory format. To accomodate this, we added a new basic versioning scheme, so old versions of Nix will get nice errors. (And going forward, if the ATerm format changes again the errors will be even better.) `parsedStrings`, an internal function used as part of parsing derivations in A-Term format, used to consume the final `]` but expect the initial `[` to already be consumed. This made for what looked like unbalanced brackets at callsites, which was confusing. Now it consumes both which is hopefully less confusing. As part of testing, we also created a unit test for the A-Term format for regular non-experimental derivations too. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com> Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io> Apply suggestions from code review Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-09-07fix invalid anchor linkValentin Gagarin
2023-09-06Improve derivation parsingJohn Ericson
- Don't assert: Derivation ATerms are not necessarily produced by Nix, and parsers should always throw graceful errors - Improve error message from `static void except(..)`, shows both what we expected and what we actually got. The intention is that we backport it, and then hopefully a few people might get slightly better errors if they try out new experimental drv files (for RFC 92) with an old version of Nix.
2023-09-06Merge pull request #8927 from obsidiansystems/test-derivation-atermJohn Ericson
Test and begin documentation of the ATerm format for derivations
2023-09-06Fix globals.hh typoChristina Sørensen
2023-09-05Test and begin documentation of the ATerm format for derivationsJohn Ericson
Wanted to do this before the last dynamic derivations PR when I introduce a variation, to make sure I wasn't changing the old version by mistake.
2023-09-01Fix warning 'catching polymorphic type by value'Eelco Dolstra
2023-09-01Merge branch 'master' into valid_deriver_2Eelco Dolstra
2023-09-01Merge pull request #8869 from hercules-ci/fix-issue-8838-pathExists-isDirEelco Dolstra
Fix #8838, pathExists: isDir when ends with `/ `
2023-08-29Merge pull request #8859 from edolstra/tarball-last-modifiedEelco Dolstra
Tarball trees: Propagate lastModified
2023-08-28Port the flags of nix-daemon to nix daemon (#8788)Bryan Honof
The new `nix daemon` command didn't accept the same flags that `nix-daemon` did. * docs(daemon): clarify the daemon trust override flags * fix: change declaration order * docs: add examples of nix daemon usage * Apply suggestions from code review --------- Co-authored-by: Eelco Dolstra <edolstra@gmail.com> Co-authored-by: John Ericson <git@JohnEricson.me> Co-authored-by: tomberek <tomberek@users.noreply.github.com>
2023-08-25pathExists: isDir when endswith /Robert Hensing
Fixes https://github.com/NixOS/nix/issues/8838
2023-08-25Merge pull request #8829 from obsidiansystems/build-dynamic-derivationsJohn Ericson
Adapt scheduler to work with dynamic derivations
2023-08-25Merge pull request #8819 from VertexA115/fix/deep-follow-pathstomberek
Fix follow path checking at depths greater than 2
2023-08-25Merge pull request #8814 from hercules-ci/exception-self-checkJohn Ericson
initLibUtil: Add exception handling self-check
2023-08-25Adapt scheduler to work with dynamic derivationsJohn Ericson
To avoid dealing with an optional `drvPath` (because we might not know it yet) everywhere, make an `CreateDerivationAndRealiseGoal`. This goal just builds/substitutes the derivation file, and then kicks of a build for that obtained derivation; in other words it does the chaining of goals when the drv file is missing (as can already be the case) or computed (new case). This also means the `getDerivation` state can be removed from `DerivationGoal`, which makes the `BasicDerivation` / in memory case and `Derivation` / drv file file case closer together. The map type is factored out for clarity, and because we will soon hvae a second use for it (`Derivation` itself). Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-08-25Use `Worker::makeDerivationGoal` lessJohn Ericson
We're about to split up `DerivationGoal` a bit. At that point `makeDerivationGoal` will mean something more specific than it does today. (Perhaps a future rename will make this clearer.) On the other hand, the more public `Worker::makeGoal` function will continue to work exactly as before. So by moving some call sites to use that instead, we preemptively avoid issues in the next step.
2023-08-25Throw `MissingRealisation` not plain `Error` in both `resolveDerivedPath`John Ericson
Now we are consistent with the other `resolveDerivedPath`, and other such functions.
2023-08-25Introduce `OutputName` and `OutputNameView` type aliasesJohn Ericson
Hopefully they make the code easier to understand!
2023-08-24add nix-store --query --valid-derivers commandGuillaume Girol
notably useful when nix-store --query --deriver returns a non-existing path. Co-authored-by: Felix Uhl <iFreilicht@users.noreply.github.com>
2023-08-22Tarball trees: Propagate lastModifiedEelco Dolstra
This makes them behave consistently with GitHub/GitLab flakes.
2023-08-21Merge pull request #8836 from obsidiansystems/rm-addToSearchPathEelco Dolstra
Delete `EvalState::addToSearchPath`
2023-08-19Merge pull request #8812 from tweag/fix-clang-tidyRobert Hensing
Fix some warnings/bugs found by clang-tidy
2023-08-18Delete `EvalState::addToSearchPath`John Ericson
This function is now trivial enough that it doesn't need to exist. `EvalState` can still be initialized with a custom search path, but we don't have a need to mutate the search path after it has been constructed, and I don't see why we would need to in the future. Fixes #8229
2023-08-18Merge pull request #8839 from obsidiansystems/string-context-7479John Ericson
Refactor Raw pattern, part of #7479
2023-08-18Fixing #7479John Ericson
Types converted: - `NixStringContextElem` - `OutputsSpec` - `ExtendedOutputsSpec` - `DerivationOutput` - `DerivationType` Existing ones mostly conforming the pattern cleaned up: - `ContentAddressMethod` - `ContentAddressWithReferences` The `DerivationGoal::derivationType` field had a bogus initialization, now caught, so I made it `std::optional`. I think #8829 can make it non-optional again because it will ensure we always have the derivation when we construct a `DerivationGoal`. See that issue (#7479) for details on the general goal. `git grep 'Raw::Raw'` indicates the two types I didn't yet convert `DerivedPath` and `BuiltPath` (and their `Single` variants) . This is because @roberth and I (can't find issue right now...) plan on reworking them somewhat, so I didn't want to churn them more just yet. Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2023-08-17libutil: fix double-encoding of URLsCole Helbling
If you have a URL that needs to be percent-encoded, such as `http://localhost:8181/test/+3d.tar.gz`, and try to lock that in a Nix flake such as the following: { inputs.test = { url = "http://localhost:8181/test/+3d.tar.gz"; flake = false; }; outputs = { test, ... }: { t = builtins.readFile test; }; } running `nix flake metadata` shows that the input URL has been incorrectly double-encoded (despite the flake.lock being correctly encoded only once): [...snip...] Inputs: └───test: http://localhost:8181/test/%252B3d.tar.gz?narHash=sha256-EFUdrtf6Rn0LWIJufrmg8q99aT3jGfLvd1//zaJEufY%3D (Notice the `%252B`? That's just `%2B` but percent-encoded again) With this patch, the double-encoding is gone; running `nix flake metadata` will show the proper URL: [...snip...] Inputs: └───test: http://localhost:8181/test/%2B3d.tar.gz?narHash=sha256-EFUdrtf6Rn0LWIJufrmg8q99aT3jGfLvd1//zaJEufY%3D --- As far as I can tell, this happens because Nix already percent-encodes the URL and stores this as the value of `inputs.asdf.url`. However, when Nix later tries to read this out of the eval state as a string (via `getStrAttr`), it has to run it through `parseURL` again to get the `ParsedURL` structure. Now, this itself isn't a problem -- the true problem arises when using `ParsedURL::to_string` later, which then _re-escapes the path_. It is at this point that what would have been `%2B` (`+`) becomes `%252B` (`%2B`).
2023-08-17libexpr/tests: test that parseFlakeRef doesn't percent-encode twiceCole Helbling
2023-08-16Merge pull request #8833 from hercules-ci/jobcategory-docEelco Dolstra
Document jobCategory()
2023-08-16Document jobCategory()Robert Hensing
2023-08-14src/libexpr/search-path.cc: avoid out-of-bounds read on string_viewSergei Trofimovich
Without the change build with `-D_GLIBCXX_ASSERTIONS` exposes testsuite assertion: $ gdb src/libexpr/tests/libnixexpr-tests Reading symbols from src/libexpr/tests/libnixexpr-tests... (gdb) break __glibcxx_assert_fail (gdb) run (gdb) bt in std::__glibcxx_assert_fail(char const*, int, char const*, char const*)@plt () from /mnt/archive/big/git/nix/src/libexpr/libnixexpr.so in std::basic_string_view<char, std::char_traits<char> >::operator[] (this=0x7fffffff56c0, __pos=4) at /nix/store/r74fw2j8rx5idb0w8s1s6ynwwgs0qmh9-gcc-14.0.0/include/c++/14.0.0/string_view:258 in nix::SearchPath::Prefix::suffixIfPotentialMatch (this=0x7fffffff5780, path=...) at src/libexpr/search-path.cc:15 in nix::SearchPathElem_suffixIfPotentialMatch_partialPrefix_Test::TestBody (this=0x555555a17540) at src/libexpr/tests/search-path.cc:62 As string sizes are usigned types `(a - b) > 0` effectively means `a != b`. While the intention should be `a > b`. The change fixes test suite pass.
2023-08-14Fix follow path checking at depths greater than 2Alex Zero
We need to recurse into the input tree to handle follows paths that trarverse multiple inputs that may or may not be follow paths themselves.
2023-08-14Create `outputOf` primop.John Ericson
In the Nix language, given a drv path, we should be able to construct another string referencing to one of its output. We can do this today with `(import drvPath).output`, but this only works for derivations we already have. With dynamic derivations, however, that doesn't work well because the `drvPath` isn't yet built: importing it like would need to trigger IFD, when the whole point of this feature is to do "dynamic build graph" without IFD! Instead, what we want to do is create a placeholder value with the right string context to refer to the output of the as-yet unbuilt derivation. A new primop in the language, analogous to `builtins.placeholder` can be used to create one. This will achieve all the right properties. The placeholder machinery also will match out the `outPath` attribute for CA derivations works. In 60b7121d2c6d4322b7c2e8e7acfec7b701b2d3a1 we added that type of placeholder, and the derived path and string holder changes necessary to support it. Then in the previous commit we cleaned up the code (inspiration finally hit me!) to deduplicate the code and expose exactly what we need. Now, we can wire up the primop trivally! Part of RFC 92: dynamic derivations (tracking issue #6316) Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-08-14Rework evaluator `SingleDerivedPath` infraJohn Ericson
`EvalState::mkSingleDerivedPathString` previously contained its own inverse (printing, rather than parsing) in order to validate what was parsed. Now that is pulled out into its own separate function: `EvalState::coerceToSingleDerivedPath`. In additional that pulled out logic is deduplicated with `EvalState::mkOutputString` via `EvalState::mkOutputStringRaw`, which is itself deduplicated (and generalized) with `DownstreamPlaceholder::mkOutputStringRaw`. All these changes make the unit tests simpler. (We would ideally write more unit tests for `mkSingleDerivedPathString` `coerceToSingleDerivedPath` directly, but we cannot yet do that because the IO in reading the store path won't work when the dummy store cannot hold anything. Someday we'll have a proper in-memory store which will work for this.) Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-08-14Rename `optOutputPath` to `optStaticOutputPath`John Ericson
This choice of variable name makes it more clear what is going on. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-08-11Merge pull request #8735 from obsidiansystems/defexprRobert Hensing
Factor out `nix-defexpr` path computation
2023-08-11initLibUtil: Add exception handling self-checkRobert Hensing
2023-08-11Merge pull request #8369 from obsidiansystems/inductive-derived-pathtomberek
Make the Derived Path family of types inductive for dynamic derivations