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2020-03-24findAlongAttrPath(): Throw AttrPathNotFoundEelco Dolstra
(cherry picked from commit 6b0ca8e803710342af70e257935724c5ad84ca04)
2020-03-24EvalState::allocAttr(): Add convenience methodEelco Dolstra
(cherry picked from commit c02da997570ac0d9b595d787bea8cb5a4e3cc1f5)
2020-03-13Add missing `#include <regex>`John Ericson
2020-03-11Move some corepkgs into the nix binaryEelco Dolstra
2020-03-11parseExprFromString(): Use std::string_viewEelco Dolstra
2020-03-04builtins.cache: Cache regular expressionsEelco Dolstra
The evaluator was spending about 1% of its time compiling a small number of regexes over and over again.
2020-02-13Bindings::get(): std::optional<Attr *> -> Attr *Eelco Dolstra
Returning a nullable type in an optional is silly.
2020-01-21Fix derivation computation with __structuredAttrs and multiple outputsEelco Dolstra
Fixes error: derivation '/nix/store/klivma7r7h5lndb99f7xxmlh5whyayvg-zlib-1.2.11.drv' has incorrect output '/nix/store/fv98nnx5ykgbq8sqabilkgkbc4169q05-zlib-1.2.11-dev', should be '/nix/store/adm7pilzlj3z5k249s8b4wv3scprhzi1-zlib-1.2.11-dev'
2020-01-13Tweak error messageEelco Dolstra
2020-01-13Merge branch 'assert-show-expression' of https://github.com/LnL7/nixEelco Dolstra
2020-01-13Fix buildEelco Dolstra
https://hydra.nixos.org/eval/1564374
2020-01-11libexpr: show expression in assertion errorsDaiderd Jordan
Includes the expression of the condition in the assertion message if the assertion failed, making assertions much easier to debug. eg. error: assertion (withPython -> (python2Packages != null)) failed at pkgs/tools/security/nmap/default.nix:11:1
2020-01-09json-to-value: use unique_ptr instead of raw pointersYorick van Pelt
2020-01-09builtins.fromJSON: use nlohmann/json parser instead of custom parserYorick van Pelt
2020-01-07Add support for \u escape in fromJSONNikola Knezevic
As fromTOML supports \u and \U escapes, bring fromJSON on par. As JSON defaults to UTF-8 encoding (every JSON parser must support UTF-8), this change parses the `\u hex hex hex hex` sequence (\u followed by 4 hexadecimal digits) into an UTF-8 representation. Add a test to verify correct parsing, using all escape sequences from json.org.
2020-01-07Remove redundant check in parseJSONStringNikola Knezevic
2020-01-05Hide FunctionCallTrace constructor/destructorEelco Dolstra
This prevents them from being inlined. On gcc 9, this reduces the stack size needed for nix-instantiate '<nixpkgs>' -A texlive.combined.scheme-full --dry-run from 12.9 MiB to 4.8 MiB.
2019-12-16nix-store -r: Handle symlinks to store pathsEelco Dolstra
Fixes #3270.
2019-12-15Tweak error messageEelco Dolstra
2019-12-13bugfix: Adding depth limit to resolveExprPathDima
There is no termination condition for evaluation of cyclical expression paths which can lead to infinite loops. This addresses one spot in the parser in a similar fashion as utils.cc/canonPath does. This issue can be reproduced by something like: ``` ln -s a b ln -s b a nix-instantiate -E 'import ./a' ```
2019-12-10Make the Store API more type-safeEelco Dolstra
Most functions now take a StorePath argument rather than a Path (which is just an alias for std::string). The StorePath constructor ensures that the path is syntactically correct (i.e. it looks like <store-dir>/<base32-hash>-<name>). Similarly, functions like buildPaths() now take a StorePathWithOutputs, rather than abusing Path by adding a '!<outputs>' suffix. Note that the StorePath type is implemented in Rust. This involves some hackery to allow Rust values to be used directly in C++, via a helper type whose destructor calls the Rust type's drop() function. The main issue is the dynamic nature of C++ move semantics: after we have moved a Rust value, we should not call the drop function on the original value. So when we move a value, we set the original value to bitwise zero, and the destructor only calls drop() if the value is not bitwise zero. This should be sufficient for most types. Also lots of minor cleanups to the C++ API to make it more modern (e.g. using std::optional and std::string_view in some places).
2019-12-10EvalState::callFunction(): Make FunctionCallTrace use less stack spaceEelco Dolstra
The FunctionCallTrace object consumes a few hundred bytes of stack space, even when tracing is disabled. This was causing stack overflows: $ nix-instantiate '<nixpkgs> -A texlive.combined.scheme-full --dry-run error: stack overflow (possible infinite recursion) This is with the default stack size of 8 MiB. Putting the object on the heap reduces stack usage to < 5 MiB.
2019-12-05Move #includeEelco Dolstra
(cherry picked from commit 8beedd44861d1fe7208609ee8d231ca1c02dedf6)
2019-12-05Bindings: Add convenience method for requiring an attributeEelco Dolstra
(cherry picked from commit fb692e5f7b34def8cf590298036ab63e40747062)
2019-12-05Bindings::get(): Add convenience methodEelco Dolstra
This allows writing attribute lookups as if (auto name = value.attrs->get(state.sName)) ... (cherry picked from commit f216c76c56cdffb5214d074a7d44812843dd174f)
2019-11-29Merge pull request #2748 from edolstra/rustEelco Dolstra
Make nix/unpack-channel.nix a builtin builder
2019-11-28Remove builtins.valueSizeEelco Dolstra
Fixes #3246.
2019-11-26Drop remaining uses of external "tar"Eelco Dolstra
Also, fetchGit now runs in O(1) memory since we pipe the output of 'git archive' directly into unpackTarball() (rather than first reading it all into memory).
2019-11-26Merge pull request #3238 from puckipedia/attrset-overrides-dynamicEelco Dolstra
Ensure enough space in attrset bindings
2019-11-26Add feature to disable URL literalsEelco Dolstra
E.g. $ nix-build '<nixpkgs>' -A hello --experimental-features no-url-literals error: URL literals are disabled, at /nix/store/vsjamkzh15r3c779q2711az826hqgvzr-nixpkgs-20.03pre194957.bef773ed53f/nixpkgs/pkgs/top-level/all-packages.nix:1236:11 Helps with implementing https://github.com/NixOS/rfcs/pull/45.
2019-11-25Ensure enough space in attrset bindings when using both __overrides and ↵Puck Meerburg
dynamic attributes
2019-11-22Turn NIX_PATH into a config settingEelco Dolstra
This allows it to be set in nix.conf.
2019-11-22Provide a default value for NIX_PATHEelco Dolstra
2019-11-22getEnv(): Return std::optionalEelco Dolstra
This allows distinguishing between an empty value and no value.
2019-11-11Merge pull request #3219 from Ericson2314/semicolonsEelco Dolstra
Fix extra semicolons warnings
2019-11-10Remove unneeded semicolonsJohn Ericson
2019-11-10Fix extra ; warnings involving MakeErrorJohn Ericson
2019-11-10De-duplicate struct PrimOp forward declarationPeter Kolloch
2019-11-05Merge branch 'nix-repl-e' of https://github.com/zimbatm/nixEelco Dolstra
2019-10-31Minor updates to inline commentsBenjamin Hipple
Add missing docstring on InstallableCommand. Also, some of these were wrapped when they're right next to a line longer than the unwrapped line, so we can just unwrap them to save vertical space.
2019-10-28findDerivationFilename: add FIXMEzimbatm
2019-10-28libexpr: findDerivationFilename return Pos instead of tuplezimbatm
2019-10-27Merge branch 'tojson-tostring-fix' of https://github.com/mayflower/nixEelco Dolstra
2019-10-27builtins.toJSON: fix __toString usageRobin Gloster
2019-10-23libexpr: add findDerivationFilenamezimbatm
extract the derivation to filename:lineno heuristic
2019-10-09Fix Bison 2.4 warningEelco Dolstra
2019-10-09OCD performance fix: {find,count}+insert => insertEelco Dolstra
2019-10-01Fix fetchTarball with chroot storesEelco Dolstra
Fixes #2405.
2019-09-22Don't catch exceptions by valueEelco Dolstra
(cherry picked from commit 893be6f5e36abb58bbaa9c49055a5218114dd514)
2019-09-18function-trace: always show the tracezimbatm
If the user invokes nix with --trace-function-calls it means that they want to see the trace.
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