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2020-04-08DownloadError -> DataTransferErrorNikola Knezevic
2020-04-08Rename src/lib/download.* to src/lib/datatransfer.*Nikola Knezevic
2020-04-08Merge pull request #3468 from Infinisil/functionArgsPositionsEelco Dolstra
Make function arguments retain position info
2020-04-07Merge branch 'fetchgit-recursive' of https://github.com/blitz/nixEelco Dolstra
2020-04-07Backport libfetchers from the flakes branchEelco Dolstra
This provides a pluggable mechanism for defining new fetchers. It adds a builtin function 'fetchTree' that generalizes existing fetchers like 'fetchGit', 'fetchMercurial' and 'fetchTarball'. 'fetchTree' takes a set of attributes, e.g. fetchTree { type = "git"; url = "https://example.org/repo.git"; ref = "some-branch"; rev = "abcdef..."; } The existing fetchers are just wrappers around this. Note that the input attributes to fetchTree are the same as flake input specifications and flake lock file entries. All fetchers share a common cache stored in ~/.cache/nix/fetcher-cache-v1.sqlite. This replaces the ad hoc caching mechanisms in fetchGit and download.cc (e.g. ~/.cache/nix/{tarballs,git-revs*}). This also adds support for Git worktrees (c169ea59049f861aaba429f48b828d0820b74d1d).
2020-04-02libexpr: remove unused attrErrorAndreas Rammhold
The attrError variable is no longer used but still allocated on every call to the findAlongAttrPath function.
2020-04-02Make function arguments retain position infoSilvan Mosberger
This allows querying the location of function arguments. E.g. builtins.unsafeGetAttrPos "x" (builtins.functionArgs ({ x }: null)) => { column = 57; file = "/home/infinisil/src/nix/inst/test.nix"; line = 1; }
2020-03-30Remove global -I flagsEelco Dolstra
(cherry picked from commit 2c692a3b144523bca68dd6de618124ba6c9bb332)
2020-03-30fetchGit: don't use std::filesystem to filter git reposJulian Stecklina
Using std::filesystem means also having to link with -lstdc++fs on some platforms and it's hard to discover for what platforms this is needed. As all the functionality is already implemented as utilities, use those instead.
2020-03-29fetchGit: fix submodule corner case by fetching all refs from cacheDirBjørn Forsman
Due to fetchGit not checking if rev is an ancestor of ref (there is even a FIXME comment about it in the code), the cache repo might not have the ref even though it has the rev. This doesn't matter when submodule = false, but the submodule = true code blows up because it tries to fetch the (missing) ref from the cache repo. Fix this in the simplest way possible: fetch all refs from the local cache repo when submodules = true. TODO: Add tests.
2020-03-29fetchGit: fix submodules = true for dirty treesBjørn Forsman
2020-03-29fetchGit: checkout rev instead of latest refBjørn Forsman
Major bugfix for the submodules = true code path. TODO: Add tests.
2020-03-29fetchGit: add submodules attribute to the .link fileBjørn Forsman
The .link file is used as a lock, so I think we should put the "submodule" attribute in there since turning on submodules creates a new .link file path.
2020-03-29fetchGit: fix submodule output attributeBjørn Forsman
Before this change it would be false for all evaluations but the first. Now it follows the input argument (as it should).
2020-03-29fetchGit: fix "fatal: couldn't find remote ref refs/heads/master" issue with ↵Bjørn Forsman
submodules
2020-03-29Link to stdc++fsJulian Stecklina
Some platforms seem to still require linking with stdc++fs to enable STL std::filesystem support.
2020-03-29Rename fetchGit fetchSubmodules to just submodulesJulian Stecklina
2020-03-29Add git submodule fixes from @bjornforJulian Stecklina
This fixes fetching repositories with no submodules and also cleans up .git files in checkouts.
2020-03-29Add fetchSubmodules to builtins.fetchGitJulian Stecklina
There are some downsides to this features: - Submodules are not cached (unlike the root repo), - Full checkouts are created in a temporary directory.
2020-03-24Misc changes from the flakes branchEelco Dolstra
2020-03-24Fix coverage buildEelco Dolstra
https://hydra.nixos.org/build/110757285 (cherry picked from commit b430a81a1fbf6c792ba49e3aefe46256263430e5)
2020-03-24nix edit: Support non-derivation attributesEelco Dolstra
E.g. $ nix edit .#nixosConfigurations.bla now works. (cherry picked from commit d2032edb2f86e955a8a7724a27c0c3225f386500)
2020-03-24findAlongAttrPath(): Return positionEelco Dolstra
(cherry picked from commit 0b013a54dc570395bed887369f8dd622b8ce337b)
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.
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