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851 commits

Author SHA1 Message Date
pennae ad60dfde2a also cache split regexes, not just match regexes
gives about 1% improvement on system eval, a bit less on nix search.

 # before

  nix search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      7.419 s ±  0.045 s    [User: 6.362 s, System: 0.794 s]
    Range (min … max):    7.335 s …  7.517 s    20 runs

  nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
    Time (mean ± σ):      2.921 s ±  0.023 s    [User: 2.626 s, System: 0.210 s]
    Range (min … max):    2.883 s …  2.957 s    20 runs

 # after

  nix search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      7.370 s ±  0.059 s    [User: 6.333 s, System: 0.791 s]
    Range (min … max):    7.286 s …  7.541 s    20 runs

  nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
    Time (mean ± σ):      2.891 s ±  0.033 s    [User: 2.606 s, System: 0.210 s]
    Range (min … max):    2.823 s …  2.958 s    20 runs
2022-01-14 14:04:17 +01:00
pennae c9fc975259 optimize removeAttrs builtin
use a sorted array of symbols to be removed instead of a set. this saves a lot
of memory allocations and slightly speeds up removal.
2022-01-14 14:01:52 +01:00
pennae 34e3bd10e3 avoid copies of parser input data
when given a string yacc will copy the entire input to a newly allocated
location so that it can add a second terminating NUL byte. since the
parser is a very internal thing to EvalState we can ensure that having
two terminating NUL bytes is always possible without copying, and have
the parser itself merely check that the expected NULs are present.

 # before

Benchmark 1: nix search --offline nixpkgs hello
  Time (mean ± σ):     572.4 ms ±   2.3 ms    [User: 563.4 ms, System: 8.6 ms]
  Range (min … max):   566.9 ms … 579.1 ms    50 runs

Benchmark 2: nix eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
  Time (mean ± σ):     381.7 ms ±   1.0 ms    [User: 348.3 ms, System: 33.1 ms]
  Range (min … max):   380.2 ms … 387.7 ms    50 runs

Benchmark 3: nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
  Time (mean ± σ):      2.936 s ±  0.005 s    [User: 2.715 s, System: 0.221 s]
  Range (min … max):    2.923 s …  2.946 s    50 runs

 # after

Benchmark 1: nix search --offline nixpkgs hello
  Time (mean ± σ):     571.7 ms ±   2.4 ms    [User: 563.3 ms, System: 8.0 ms]
  Range (min … max):   566.7 ms … 579.7 ms    50 runs

Benchmark 2: nix eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
  Time (mean ± σ):     376.6 ms ±   1.0 ms    [User: 345.8 ms, System: 30.5 ms]
  Range (min … max):   374.5 ms … 379.1 ms    50 runs

Benchmark 3: nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
  Time (mean ± σ):      2.922 s ±  0.006 s    [User: 2.707 s, System: 0.215 s]
  Range (min … max):    2.906 s …  2.934 s    50 runs
2022-01-13 18:06:15 +01:00
pennae 6401e443a4 move strings in derivationStrict
the temporary will be discarded anyway, so we can move out of it and save many
small allocations and copies.
2022-01-13 14:00:20 +01:00
pennae ef45787aae avoid string copies in attrNames sort comparison
symbols can also be cast to string_view, which compares the same but doesn't
require a copy of both symbol names on every comparison.
2022-01-13 14:00:19 +01:00
pennae 1bebb1095a cache more often-used symbols for primops
there's a few symbols in primops we can create once and pick them out of
EvalState afterwards instead of creating them every time we need them. this
gives almost 1% speedup to an uncached nix search.
2022-01-13 13:58:33 +01:00
Nikolay Amiantov c66865dff1 builtins.readFile: Propagate path context
Co-authored-by: Shea Levy <shea@shealevy.com>
2022-01-09 13:07:00 +03:00
Eelco Dolstra 2b4c944823 Remove EvalState::mkAttrs() 2022-01-04 20:29:17 +01:00
Eelco Dolstra ca5baf2392 Turn mkString(Symbol) into a method 2022-01-04 19:09:40 +01:00
Eelco Dolstra ed93aec3c3 Remove non-method mkPath() 2022-01-04 18:45:16 +01:00
Eelco Dolstra 263a8d293c Remove non-method mk<X> functions 2022-01-04 18:40:39 +01:00
Eelco Dolstra cc08364315 Remove non-method mkString() 2022-01-04 18:24:42 +01:00
Eelco Dolstra 6d9a6d2cc3 Ensure that attrsets are sorted
Previously you had to remember to call value->attrs->sort() after
populating value->attrs. Now there is a BindingsBuilder helper that
wraps Bindings and ensures that sort() is called before you can use
it.
2022-01-04 18:00:33 +01:00
Ben Burdette a47de1ac37 Merge branch 'master' into debug-exploratory-PR 2022-01-03 16:08:28 -07:00
pennae 00c993f48b add zipAttrsWith primop
nixpkgs can save a good bit of eval memory with this primop. zipAttrsWith is
used quite a bit around nixpkgs (eg in the form of recursiveUpdate), but the
most costly application for this primop is in the module system. it improves
the implementation of zipAttrsWith from nixpkgs by not checking an attribute
multiple times if it occurs more than once in the input list, allocates less
values and set elements, and just avoids many a temporary object in general.

nixpkgs has a more generic version of this operation, zipAttrsWithNames, but
this version is only used once so isn't suitable for being the base of a new
primop. if it were to be used more we should add a second primop instead.
2022-01-03 21:05:53 +01:00
Sebastian Ullrich d0c8e9254e Fix IFD with chroot store 2021-12-29 19:00:02 +01:00
regnat dc89dfa7b3 Properly return false on builtins.pathExists /someNonAllowedPath
Follow-up from https://github.com/NixOS/nix/pull/5807 to fix https://github.com/NixOS/nix/pull/5807#issuecomment-1000135394
2021-12-23 10:49:33 +01:00
regnat d90f9d4b99 Fix IFD with CA derivations
Rewrite the string taken by the IFD-like primops to contain the actual
output paths of the derivations rather than the placeholders

Fix #5805
2021-12-21 09:36:50 +01:00
regnat cbbd21ec07 Factor out the path realisation bit of IFD 2021-12-21 09:36:19 +01:00
Silvan Mosberger 90700736c7 Introduce builtins.groupBy primop
This function is very useful in nixpkgs, but its implementation in Nix
itself is rather slow due to it requiring a lot of attribute set and
list appends.
2021-12-02 21:54:51 +01:00
Ben Burdette e82aec4efc fix merge issues 2021-11-30 14:15:02 -07:00
Andreas Rammhold 90d8178009
Don't move the arguments of the primOp
Moving arguments of the primOp into the registration structure makes it
impossible to initialize a second EvalState with the correct primOp
registration. It will end up registering all those "RegisterPrimOp"'s
with an arity of zero on all but the 2nd instance of the EvalState.

Not moving the memory will add a tiny bit of memory overhead during the
eval since we need a copy of all the argument lists of all the primOp's.
The overhead shouldn't be too bad as it is static (based on the amonut
of registered operations) and only occurs once during the interpreter
startup.
2021-11-28 02:06:47 +01:00
Ben Burdette 64c4ba8f66 Merge branch 'master' into debug-merge 2021-11-25 08:53:59 -07:00
Eelco Dolstra b6c8e57056 Support range-based for loop over list values 2021-11-25 16:31:39 +01:00
Eelco Dolstra d58f149140
Merge pull request #5631 from Infinisil/list-compare
Make lists be comparable
2021-11-24 15:48:05 +01:00
Silvan Mosberger 09471d2680 Make lists be comparable
Makes lists comparable using lexicographic comparison.

Increments builtins.langVersion in order for this change to be
detectable
2021-11-24 13:40:46 +01:00
Eelco Dolstra b367f1061c
Merge pull request #5624 from rofrol/typo-single-quote
Typo: change to normal single quote
2021-11-22 21:33:21 +01:00
Roman Frołow 0768c08d99 Typo: change to normal singlequote 2021-11-22 13:37:38 +01:00
Tom Bereknyei 4318ba2ec5 add real path to allowedPaths 2021-11-20 00:25:36 -05:00
Eelco Dolstra 6463eaca14
Merge pull request #5472 from NixOS/async-realisation-substitution
async realisation substitution
2021-11-16 12:54:20 +01:00
Domen Kožar 164179983e
Merge pull request #5428 from kreisys/add-pos-to-json-type-error
toJSON: report error position for fancier output
2021-11-15 07:57:46 -06:00
Kevin Amado d0e9e18489
toXML: display errors position
- This change applies to builtins.toXML and inner workings
- Proof of concept:
  ```nix
  let e = builtins.toXML e; in e
  ```
- Before:
  ```
  $ nix-instantiate --eval poc.nix
  error: infinite recursion encountered
  ```
- After:
  ```
  $ nix-instantiate --eval poc.nix
  error: infinite recursion encountered

       at /data/github/kamadorueda/nix/poc.nix:1:9:

            1| let e = builtins.toXML e; in e
             |
  ```
2021-11-13 20:33:34 -05:00
Eelco Dolstra 67179472df
Merge pull request #5494 from tweag/balsoft/allow-references-in-addPath
Allow references in addPath
2021-11-09 15:57:39 +01:00
Alexander Bantyev 0b005bc9d6
addToStore, addToStoreFromDump: refactor: pass refs by const reference
Co-Authored-By: Eelco Dolstra <edolstra@gmail.com>
2021-11-09 12:24:49 +03:00
Alexander Bantyev 9d4dcff37a
addPath: allow paths with references
Since 4806f2f6b0, we can't have paths with
references passed to builtins.{path,filterSource}. This prevents many cases
of those functions called on IFD outputs from working. Resolve this by
passing the references found in the original path to the added path.
2021-11-05 22:41:30 +03:00
Eelco Dolstra acd6bddec7 Fix derivation primop 2021-11-04 15:04:00 +01:00
Eelco Dolstra cbfbf71e08 Use callFunction() with an array for some calls with arity > 1 2021-11-04 15:03:57 +01:00
Eelco Dolstra ab35cbd675 StaticEnv: Use std::vector instead of std::map 2021-11-04 15:03:34 +01:00
regnat 5b2aa61f1b Don’t require ca-derivations when __contentAddressed = false
If we explicitely opt-out of it, there’s no need to require the
experimental feature
2021-11-03 06:51:32 +01:00
regnat af99941279 Make experimental-features a proper type
Rather than having them plain strings scattered through the whole
codebase, create an enum containing all the known experimental features.

This means that
- Nix can now `warn` when an unkwown experimental feature is passed
  (making it much nicer to spot typos and spot deprecated features)
- It’s now easy to remove a feature altogether (once the feature isn’t
  experimental anymore or is dropped) by just removing the field for the
  enum and letting the compiler point us to all the now invalid usages
  of it.
2021-10-26 07:02:31 +02:00
Shay Bergmann ba81e871b2
toJSON: report error position for fancier output
Given flake:

```nix
{ description = "nix json error provenance";
  inputs = {};
  outputs = { self }: {
    jsonFunction = _: "function";
    json = builtins.toJSON (_: "function");
  };
}

```
- Before:

```console
❯ nix eval --json .#jsonFunction
error: cannot convert a function to JSON
```

- After:

```console
❯ nix eval --json .#jsonFunction
error: cannot convert a function to JSON

       at /nix/store/b7imf1c2j4jnkg3ys7fsfbj02s5j0i4f-source/testflake/flake.nix:4:5:

            3|   outputs = { self }: {
            4|     jsonFunction = _: "function";
             |     ^
            5|     json = builtins.toJSON (_: "function");
```
2021-10-25 21:17:52 +00:00
Ben Burdette e54f17eb46 remove more debug code 2021-10-22 14:27:04 -06:00
Ben Burdette 427fb8d158 comment out debugs 2021-10-11 16:48:10 -06:00
regnat 7466048d39 (partially) Revert "Don't copy in rethrow"
This reverts some parts of commit
8430a8f086 which was trying to rethrow
some exceptions while we weren’t in the context of a `catch` block,
causing some weird “terminate called without an active exception”
errors.

Fix #5368
2021-10-11 10:51:22 +02:00
John Ericson 195daa8299 Merge remote-tracking branch 'upstream/master' into ca-drv-exotic 2021-10-08 23:59:15 +00:00
Eelco Dolstra d39692e6b3 Make builtins.{path,filterSource} work with chroot stores 2021-10-07 14:22:39 +02:00
Eelco Dolstra c4dcf3cf25 Add a trace to all errors in addPath() 2021-10-07 13:47:15 +02:00
Eelco Dolstra 4806f2f6b0 Allow builtins.{path,filterSource} on paths with a context
We now build the context (so this has the side-effect of making
builtins.{path,filterSource} work on derivations outputs, if IFD is
enabled) and then check that the path has no references (which is what
we really care about).
2021-10-07 13:43:17 +02:00
Eelco Dolstra 7c50568788 Remove unnecessary call to queryMissing()
Worker::run() already does this.
2021-10-07 13:15:01 +02:00
Eelco Dolstra cfaad7168e Refactoring: Add allowPath() method 2021-10-07 12:11:00 +02:00
Eelco Dolstra c9ee634f75
Merge pull request #5341 from andir/libexpr-formals
libexpr: remove matchAttrs boolean from ExprLambda
2021-10-07 11:58:56 +02:00
Eelco Dolstra 53e4794289
Merge pull request #5286 from ilkecan/add-a-warning-to-filterSource
Warn about the usage of filterSource with Nix store paths
2021-10-06 21:02:39 +02:00
ilkecan a4a6ef4fb2 Add a warning to filterSource
Warn about the usage of `filterSource` with Nix store paths
2021-10-06 19:25:33 +03:00
Eelco Dolstra 0dc8172458 Remove no-op call to realiseContext() 2021-10-06 18:08:37 +02:00
Eelco Dolstra c497fce011 Merge branch 'flakes_filterSource' of https://github.com/tomberek/nix 2021-10-06 18:08:18 +02:00
Andreas Rammhold cae41eebff libexpr: remove matchAttrs boolean from ExprLambda
The boolean is only used to determine if the formals are set to a
non-null pointer in all our cases. We can get rid of that allocation and
instead just compare the pointer value with NULL. Saving up to
sizeof(bool) + platform specific alignment per ExprLambda instace.
Probably not a lot of memory but perhaps a few kilobyte with nixpkgs?

This also gets rid of a potential issue with dereferencing formals based on
the value of the boolean that didn't have to be aligned with the formals
pointer but was in all our cases.
2021-10-06 17:24:06 +02:00
John Ericson edf67e1508 Merge branch 'path-info' into ca-drv-exotic 2021-10-01 17:25:22 +00:00
John Ericson 13b6b64589 Merge remote-tracking branch 'upstream/master' into path-info 2021-10-01 17:12:54 +00:00
John Ericson 9af9ab4212 Merge branch 'path-info' into ca-drv-exotic 2021-09-30 22:42:15 +00:00
John Ericson f4f3203aa7 Merge remote-tracking branch 'upstream/master' into path-info 2021-09-30 22:41:53 +00:00
John Ericson 242f9bf3dc std::visit by reference
I had started the trend of doing `std::visit` by value (because a type
error once mislead me into thinking that was the only form that
existed). While the optomizer in principle should be able to deal with
extra coppying or extra indirection once the lambdas inlined, sticking
with by reference is the conventional default. I hope this might even
improve performance.
2021-09-30 21:35:09 +00:00
Eelco Dolstra fd01c48d34
Merge pull request #5301 from Ma27/builtins-missing-feature-error
libexpr: throw a more helpful eval-error if a builtin is not available due to a missing feature-flag
2021-09-29 12:53:29 +02:00
Maximilian Bosch 2b02ce0e48
libexpr: throw a more helpful eval-error if a builtin is not available due to a missing feature-flag
I found it somewhat confusing to have an error like

    error: attribute 'getFlake' missing

if the required experimental-feature (`flakes`) is not enabled. Instead,
I'd expect Nix to throw an error just like it's the case when using e.g. `nix
flake` without `flakes` being enabled.

With this change, the error looks like this:

    $ nix-instantiate -E 'builtins.getFlake "nixpkgs"'
    error: Cannot call 'builtins.getFlake' because experimental Nix feature 'flakes' is disabled. You can enable it via '--extra-experimental-features flakes'.

           at «string»:1:1:

                1| builtins.getFlake "nixpkgs"
                 | ^

I didn't use `settings.requireExperimentalFeature` here on purpose
because this doesn't contain a position. Also, it doesn't seem as if we
need to catch the error and check for the missing feature here since
this already happens at evaluation time.
2021-09-29 11:57:15 +02:00
Eelco Dolstra 8430a8f086 Don't copy in rethrow 2021-09-27 14:38:10 +02:00
Ben Burdette c7e3d830c1 more debug stuff 2021-09-22 16:22:53 -06:00
Eelco Dolstra ff28fffce2 Don't cache realiseContext() errors
Errors that depend on the configuration (such as whether
allow-import-from-derivation is set) should not be cached.
2021-09-22 14:00:56 +02:00
Ben Burdette cd8c232b55 add cout debugging 2021-09-15 16:16:53 -06:00
Eelco Dolstra 991cc53386 Revert "Disallow reading flake.lock"
This reverts commit e5596113f7.
2021-09-15 18:30:37 +02:00
Eelco Dolstra e5596113f7 Disallow reading flake.lock
With --no-write-lock-file, it's possible that flake.lock is out of
sync with the actual inputs used by the evaluation. So doing fromJSON
(readFile ./flake.lock) will give wrong results.

Fixes #4639.
2021-09-14 21:09:11 +02:00
Ben Burdette 21071bfdeb shared_ptr for StaticEnv 2021-09-14 10:49:22 -06:00
kvtb c6fa7775de hashFile, hashString: realize context before calculation, and discard afterwards 2021-09-13 22:34:58 +02:00
Eelco Dolstra 323cafcb4e
Merge pull request #5191 from hercules-ci/evalstate-lifetime-hygiene
EvalState lifetime hygiene
2021-08-30 12:23:09 +02:00
Robert Hensing 8656b130ea Fix use after free with vImportedDrvToDerivation 2021-08-29 20:42:57 +02:00
Robert Hensing f10465774f Force all Pos* to be non-null
This fixes a class of crashes and introduces ptr<T> to make the
code robust against this failure mode going forward.

Thanks regnat for the idea of a ref<T> without overhead!

Closes #4895
Closes #4893
Closes #5127
Closes #5113
2021-08-29 18:11:58 +02:00
Tom Bereknyei d90582be33 Allow use of path and filterSource in flakes
As filterSource and path perform work, add paths to allowedPaths.
2021-08-22 18:45:42 -04:00
Eelco Dolstra 8943e3176d
Merge pull request #5111 from Pamplemousse/clean
Minor maintenance cleaning
2021-08-09 20:05:03 +02:00
Pamplemousse 2de7a1fe67 libexpr: Squash similar conditions
Signed-off-by: Pamplemousse <xav.maso@gmail.com>
2021-08-09 10:10:11 -07:00
Niels Egberts ae0ed53b09 toString also coerces a set with an outPath attribute to a string
nix-repl> builtins.toString { outPath = "somestring"; }
"somestring"
2021-07-09 21:50:10 +01:00
Maximilian Bosch bec33858bb
primops: math.h -> cmath
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2021-05-10 16:41:10 +02:00
Maximilian Bosch 7f7f99f350
Implement builtins.floor and builtins.ceil using the C library functions internally
Closes #4782

Note: even though the type is internally called `NixFloat`, it's
actually a `double`.
2021-05-10 12:19:32 +02:00
Domen Kožar e3e78ee2a2
Merge pull request #4751 from Ma27/storepath-pos
primops/storePath: add trace to pure mode error
2021-04-27 19:05:23 +02:00
Maximilian Bosch e6a360a4d9
primops/storePath: add trace to pure mode error
As described in #4745 it's otherwise fairly hard to understand where
this is coming from. Say you have an expression which uses e.g.
`types.package`:

``` nix
{ outputs = { self, nixpkgs }: {
    packages.x86_64-linux.hello = let
      foo = nixpkgs.lib.evalModules {
        modules = [
          {
            options.foo.bar = with nixpkgs.lib; mkOption { type = types.package; };
          }
          {
            foo.bar = ./.;
          }
        ];
      };
    in builtins.trace foo.config.foo.bar.outPath nixpkgs.legacyPackages.x86_64-linux.hello;
    defaultPackage.x86_64-linux = self.packages.x86_64-linux.hello;
  };
}
```

Then you'll get an error trace like this:

```
error: 'builtins.storePath' is not allowed in pure evaluation mode

       at /nix/store/p4h2x6r80njkb0j2rc1xjhhl99yri3zb-source/lib/attrsets.nix:328:15:

          327|     let
          328|       path' = builtins.storePath path;
             |               ^
          329|       res =

       … while evaluating the attribute 'config.foo.bar.outPath'

       at /nix/store/p4h2x6r80njkb0j2rc1xjhhl99yri3zb-source/lib/attrsets.nix:332:11:

          331|           name = sanitizeDerivationName (builtins.substring 33 (-1) (baseNameOf path'));
          332|           outPath = path';
             |           ^
          333|           outputs = [ "out" ];

       … while evaluating the attribute 'packages.x86_64-linux.hello'

       at /nix/store/6c1rfsqzrhjw1235palzjmf5vihcpci7-source/flake.nix:3:5:

            2| { outputs = { self, nixpkgs }: {
            3|     packages.x86_64-linux.hello = let
             |     ^
            4|       foo = nixpkgs.lib.evalModules {
```

Fixes #4745
2021-04-27 17:24:38 +02:00
regnat 31313d1401 Replace the trailing markdown spaces by a backslash
They are equivalent according to
<https://spec.commonmark.org/0.29/#hard-line-breaks>,
and the trailing spaces tend to be a pain (because the make git
complain, editors tend to want to remove them − the `.editorconfig`
actually specifies that − etc..).
2021-04-23 14:37:21 +02:00
Maximilian Bosch 864ef0e93d
libexpr/primops: review 2021-04-13 23:12:39 +02:00
Maximilian Bosch ad7b47dc85
primops/libexpr: use new attr-call extractor everywhere; use function's pos if attr-set pos == noPos 2021-04-13 23:12:38 +02:00
Maximilian Bosch f60473a077
libexpr/primops: Move attr name extraction into its own function
This now takes care of providing positioning for both the faulting value
and the faulting function call in case of an error.
2021-04-13 23:12:38 +02:00
Maximilian Bosch 7c76964daa
libexpr: misc improvements for proper error position
When working on some more complex Nix code, there are sometimes rather
unhelpful or misleading error messages, especially if coerce-errors are
thrown.

This patch is a first steps towards improving that. I'm happy to file
more changes after that, but I'd like to gather some feedback first.

To summarize, this patch does the following things:

* Attrsets (a.k.a. `Bindings` in `libexpr`) now have a `Pos`. This is
  helpful e.g. to identify which attribute-set in `listToAttrs` is
  invalid.

* The `Value`-struct has a new method named `determinePos` which tries
  to guess the position of a value and falls back to a default if that's
  not possible.

  This can be used to provide better messages if a coercion fails.

* The new `determinePos`-API is used by `builtins.concatMap` now. With
  that change, Nix shows the exact position in the error where a wrong
  value was returned by the lambda.

  To make sure it's still obvious that `concatMap` is the problem,
  another stack-frame was added.

* The changes described above can be added to every other `primop`, but
  first I'd like to get some feedback about the overall approach.
2021-04-13 23:12:38 +02:00
Maximilian Bosch 3550a32b25
primops/derivation: use position of currently evaluated attribute
* The position of the `name`-attribute appears in the trace.
* If e.g. `meta` has no `outPath`-attribute, a `cannot coerce set to
  string` error will be thrown where `pos` points to `name =` which is
  highly misleading.
2021-04-13 23:12:38 +02:00
John Ericson d0ed11ca72 Merge commit '1b6cf0d5f56e166a1cbbf38142375b7a92fc88f2' into ca-drv-exotic 2021-04-05 19:06:43 -04:00
John Ericson 386765e3ff Merge commit 'd5cef6c33a051dfc672cb1e5f4739948b167315b' into ca-drv-exotic 2021-04-05 19:06:37 -04:00
John Ericson 1b6cf0d5f5 Merge remote-tracking branch 'upstream/master' into path-info 2021-04-05 18:47:33 -04:00
John Ericson d5cef6c33a Merge commit '9dfb97c987d8b9d6a3d15f016e40f22f91deb764' into path-info 2021-04-05 18:40:30 -04:00
John Ericson 9b805d36ac Rename Buildable 2021-04-05 09:52:25 -04:00
John Ericson 255d145ba7 Use BuildableReq for buildPaths and ensurePath
This avoids an ambiguity where the `StorePathWithOutputs { drvPath, {}
}` could mean "build `brvPath`" or "substitute `drvPath`" depending on
context.

It also brings the internals closer in line to the new CLI, by
generalizing the `Buildable` type is used there and makes that
distinction already.

In doing so, relegate `StorePathWithOutputs` to being a type just for
backwards compatibility (CLI and RPC).
2021-04-05 08:33:00 -04:00
John Ericson 90d76fa399 Merge remote-tracking branch 'obsidian/path-info' into ca-drv-exotic 2021-02-25 21:58:41 +00:00
John Ericson ca0994819d Merge remote-tracking branch 'upstream/master' into path-info 2021-02-25 21:51:05 +00:00
sternenseemann 76d8bdfe35 Include note about type of catched errors in tryEval documentation
Reference #356.
2021-02-03 17:14:40 +01:00
Eelco Dolstra 12de0466fe Add trace to build errors during import-from-derivation
Example:

error: builder for '/nix/store/9ysqfidhipyzfiy54mh77iqn29j6cpsb-failing.drv' failed with exit code 1;
       last 1 log lines:
       > FAIL
       For full logs, run 'nix log /nix/store/9ysqfidhipyzfiy54mh77iqn29j6cpsb-failing.drv'.

       … while importing '/nix/store/pfp4a4bjh642ylxyipncqs03z6kkgfvy-failing'

       at /nix/store/25wgzr2qrqqiqfbdb1chpiry221cjglc-source/flake.nix:58:15:

           57|
           58|         ifd = import self.hydraJobs.broken;
             |               ^
           59|
2021-01-27 14:46:10 +01:00
Eelco Dolstra 8d4268d190 Improve error formatting
Changes:

* The divider lines are gone. These were in practice a bit confusing,
  in particular with --show-trace or --keep-going, since then there
  were multiple lines, suggesting a start/end which wasn't the case.

* Instead, multi-line error messages are now indented to align with
  the prefix (e.g. "error: ").

* The 'description' field is gone since we weren't really using it.

* 'hint' is renamed to 'msg' since it really wasn't a hint.

* The error is now printed *before* the location info.

* The 'name' field is no longer printed since most of the time it
  wasn't very useful since it was just the name of the exception (like
  EvalError). Ideally in the future this would be a unique, easily
  googleable error ID (like rustc).

* "trace:" is now just "…". This assumes error contexts start with
  something like "while doing X".

Example before:

  error: --- AssertionError ---------------------------------------------------------------------------------------- nix
  at: (7:7) in file: /home/eelco/Dev/nixpkgs/pkgs/applications/misc/hello/default.nix

       6|
       7|   x = assert false; 1;
        |       ^
       8|

  assertion 'false' failed
  ----------------------------------------------------- show-trace -----------------------------------------------------
  trace: while evaluating the attribute 'x' of the derivation 'hello-2.10'
  at: (192:11) in file: /home/eelco/Dev/nixpkgs/pkgs/stdenv/generic/make-derivation.nix

     191|         // (lib.optionalAttrs (!(attrs ? name) && attrs ? pname && attrs ? version)) {
     192|           name = "${attrs.pname}-${attrs.version}";
        |           ^
     193|         } // (lib.optionalAttrs (stdenv.hostPlatform != stdenv.buildPlatform && !dontAddHostSuffix && (attrs ? name || (attrs ? pname && attrs ? version)))) {

Example after:

  error: assertion 'false' failed

         at: (7:7) in file: /home/eelco/Dev/nixpkgs/pkgs/applications/misc/hello/default.nix

              6|
              7|   x = assert false; 1;
               |       ^
              8|

         … while evaluating the attribute 'x' of the derivation 'hello-2.10'

         at: (192:11) in file: /home/eelco/Dev/nixpkgs/pkgs/stdenv/generic/make-derivation.nix

            191|         // (lib.optionalAttrs (!(attrs ? name) && attrs ? pname && attrs ? version)) {
            192|           name = "${attrs.pname}-${attrs.version}";
               |           ^
            193|         } // (lib.optionalAttrs (stdenv.hostPlatform != stdenv.buildPlatform && !dontAddHostSuffix && (attrs ? name || (attrs ? pname && attrs ? version)))) {
2021-01-21 11:02:09 +01:00
Eelco Dolstra 75efa42134 Move <nix/fetchurl.nix> into the nix binary
This makes the statically linked nix binary just work, without needing
any additional files.
2020-12-22 14:43:20 +01:00
Eelco Dolstra ec4a5c5b0b
Merge pull request #4355 from Infinisil/private-value-type
Refactoring for private Value type
2020-12-21 12:38:47 +01:00
Silvan Mosberger b70d22baca
Replace Value type setters with mk* functions
Move clearValue inside Value

mkInt instead of setInt

mkBool instead of setBool

mkString instead of setString

mkPath instead of setPath

mkNull instead of setNull

mkAttrs instead of setAttrs

mkList instead of setList*

mkThunk instead of setThunk

mkApp instead of setApp

mkLambda instead of setLambda

mkBlackhole instead of setBlackhole

mkPrimOp instead of setPrimOp

mkPrimOpApp instead of setPrimOpApp

mkExternal instead of setExternal

mkFloat instead of setFloat

Add note that the static mk* function should be removed eventually
2020-12-18 21:48:22 +01:00
Silvan Mosberger 12e65078ef
Rename Value::normalType() -> Value::type() 2020-12-17 14:45:45 +01:00
Eelco Dolstra 3765174691
Merge pull request #4348 from NixOS/ca/use-hashmodulo
Use the hash modulo in the derivation outputs
2020-12-16 12:48:44 +01:00
Maximilian Bosch f890830b33
primops/fromJSON: add error position in case of parse error
This makes it easier to track down where invalid JSON was passed to
`builtins.fromJSON`.
2020-12-13 13:55:32 +01:00
Silvan Mosberger bf98903967
Add ValueType checking functions for types that have the same NormalType 2020-12-12 03:31:50 +01:00
Silvan Mosberger 22ead43a0b
Use Value::normalType on all forced values instead of Value::type 2020-12-12 03:31:48 +01:00
regnat bab1cda0e6 Use the hash modulo in the derivation outputs
Rather than storing the derivation outputs as `drvPath!outputName` internally,
store them as `drvHashModulo!outputName` (or `outputHash!outputName` for
fixed-output derivations).

This makes the storage slightly more opaque, but enables an earlier
cutoff in cases where a fixed-output dependency changes (but keeps the
same output hash) − same as what we already do for input-addressed
derivations.
2020-12-11 21:17:23 +01:00
John Ericson 2113ae2d85 Make drv hash modulo memo table thread-safe
Let's get one step closer to the daemon not needing to fork.
2020-11-19 16:50:06 +00:00
regnat c092fa4702 Allow non-CA derivations to depend on CA derivations 2020-10-27 07:29:23 +01:00
John Ericson a4e5de1b9d Derivations can output "text-hashed" data
In particular, this means that derivations can output derivations. But
that ramification isn't (yet!) useful as we would want, since there is
no way to have a dependent derivation that is itself a dependent
derivation.
2020-10-13 02:15:48 +00:00
John Ericson f8d562c0a7 Use PathReferences more widely 2020-10-07 15:00:10 +00:00
Eelco Dolstra cbb9862cd9
Merge pull request #3626 from W95Psp/master
Make `functionArgs` primitive accept primops (fix #3624)
2020-09-25 15:14:18 +02:00
Eelco Dolstra e8e1d420f3 Don't include <regex> in header files
This reduces compilation time by ~15 seconds (CPU time).

Issue #4045.
2020-09-21 18:22:45 +02:00
Eelco Dolstra 10d1865f5f Remove corepkgs/derivation.nix 2020-09-17 09:41:02 +02:00
Eelco Dolstra 0066ef6c59 Fix doc generation 2020-09-16 16:56:28 +02:00
Eelco Dolstra 2eacc1bc00 builtins.toFile: Fix indentation 2020-09-16 14:18:46 +02:00
John Ericson 3a5cdd737c Rename Derivation::pathOpt to Derivation::path
We no longer need the `*Opt` to disambiguate.
2020-09-15 15:21:39 +00:00
John Ericson 5aed6f9b25 Document mkOutputString 2020-09-04 15:58:42 +00:00
John Ericson ef278d00f9 Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-09-01 18:01:48 +00:00
Eelco Dolstra 84f5cabbea Merge remote-tracking branch 'origin/master' into markdown 2020-08-31 14:24:26 +02:00
John Ericson 8017fe7487 Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-08-28 19:59:14 +00:00
Eelco Dolstra eb75282b8d
Merge pull request #3434 from Ericson2314/derivation-header-include-order
Revise division of labor in deserialization of derivations
2020-08-27 16:39:28 +02:00
Eelco Dolstra 4bf5faf416 Merge remote-tracking branch 'origin/master' into markdown 2020-08-25 19:47:34 +02:00
Eelco Dolstra 7a02865b94
Move import docs 2020-08-25 14:06:01 +02:00
Eelco Dolstra 2a2121d264
Use RegisterPrimOp for some undocumented primops 2020-08-25 11:25:01 +02:00
Eelco Dolstra b8416779e3
Document some primops 2020-08-25 11:16:45 +02:00
Eelco Dolstra a990f063ff
Move primop docs inline
This makes them available to 'nix repl'.
2020-08-24 14:31:10 +02:00
Eelco Dolstra 33b1679d75
Allow primops to have Markdown documentation 2020-08-24 13:16:02 +02:00
John Ericson 35e6288be1 writeDerivation just needs a plain store reference 2020-08-23 15:01:11 +00:00
John Ericson 3a7b330b64 "Downstream placeholders" should not be store paths
Insead they should be opaque `/<hash>` like the placeholders we already
have.
2020-08-21 19:35:35 +00:00
John Ericson 27a3f82c0b Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-08-20 18:28:17 +00:00
John Ericson 45a2f1baab Rename drv output querying functions, like master
- `queryDerivationOutputMapAssumeTotal` -> `queryPartialDerivationOutputMap`
 - `queryDerivationOutputMapAssumeTotal` -> `queryDerivationOutputMap
2020-08-20 18:14:12 +00:00
John Ericson 950ddfdb82 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-08-18 14:36:44 +00:00
Eelco Dolstra 1c8b550e34
Merge pull request #3917 from obsidiansystems/output-env-var-unconditional
Simplify code as output env vars are unconditional
2020-08-18 16:21:17 +02:00
John Ericson 3c8b5b6219 Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-08-14 17:00:13 +00:00
Eelco Dolstra 13e49be660
Merge pull request #3875 from obsidiansystems/new-interface-for-path-pathOpt
Offer a safer interface for path and pathOpt
2020-08-14 17:19:19 +02:00
John Ericson d3fa8c04c6 Simplify code as output env vars are unconditional
Since the jsonObject unique ptr is reset to flush the string to make
`__json`, all these `!jsonObject` conditions will always be true.
2020-08-11 01:13:26 +00:00
John Ericson 1b5c24662b Merge branch 'small-drv-serialize-cleanup' of github.com:obsidiansystems/nix into single-ca-drv-build 2020-08-10 01:57:54 +00:00
John Ericson bcd0629c2e Remove name parameter from writeDerivation
The name is now stored with the derivation itself.
2020-08-10 01:35:59 +00:00
John Ericson e913a2989f Squashed get CA derivations building 2020-08-07 19:51:55 +00:00
Carlo Nucera 1d2e80ddd6 Merge branch 'master' of github.com:NixOS/nix into new-interface-for-path-pathOpt 2020-08-05 15:45:33 -04:00
John Ericson b3e73547a0
Update src/libexpr/primops.cc
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2020-08-05 11:05:46 -04:00
John Ericson 92ad550e96 Merge remote-tracking branch 'obsidian/misc-ca' into derivation-primop-floating-output 2020-08-05 14:51:41 +00:00
John Ericson b9ebe373bb Sed some names to perhaps avoid conflicts 2020-08-05 14:49:25 +00:00
John Ericson e7b0847f2d Make names more consistent 2020-08-05 14:44:39 +00:00
John Ericson 03f4fafc27 Merge remote-tracking branch 'upstream/master' into misc-ca 2020-08-05 14:36:25 +00:00
John Ericson 9357512d73 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-08-01 19:38:35 +00:00
Matthew Bauer cdc2386644 Make expectedHash optional in prim_path
This fixes an error found in builtins.path that looks like:

store path mismatch in (possibly filtered) path added from '/private/tmp/nix-shell.CyXViH/nix-test/filter-source/filterin'

when no hash is specified
2020-07-30 16:40:40 -05:00
Eelco Dolstra 3f6e88a552 unsigned long long -> uint64_t 2020-07-30 13:34:04 +02:00
Carlo Nucera c318d398f3 Merge branch 'misc-ca' of github.com:obsidiansystems/nix into new-interface-for-path-pathOpt 2020-07-28 14:22:24 -04:00
Carlo Nucera 7ef1e3cd14 Use the new interface 2020-07-28 13:59:24 -04:00
John Ericson 951415b568 Require ca-derivations everywhere we create a CA derivation
"create" as in read one in from a serialized form, or build one from
scratch in memory.
2020-07-27 17:56:36 +00:00
John Ericson e32a9e124b Merge branch 'misc-ca' of github.com:obsidiansystems/nix into derivation-primop-floating-output 2020-07-27 17:50:06 +00:00
John Ericson 7cf978440c Merge branch 'ca-derivation-data-types' of github.com:obsidiansystems/nix into misc-ca 2020-07-27 17:47:40 +00:00
John Ericson 43f2bd8dc5 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-27 16:13:57 +00:00
John Ericson 9423f64ee2 Parse CA derivations using new output variants
We no longer need `ParsedDerivation` because everything libstore needs
to know about is in the `BasicDerivation` proper.
2020-07-22 23:59:25 +00:00
Carlo Nucera 5cb840541b Merge branch 'multi-output-hashDerivationModulo' of github.com:Ericson2314/nix into misc-ca 2020-07-17 10:28:33 -04:00
Carlo Nucera 048e916f64 Merge branch 'master' of github.com:NixOS/nix into optional-derivation-output-storepath 2020-07-16 13:32:28 -04:00
John Ericson 5ea817dace Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-16 14:58:53 +00:00
Carlo Nucera 455bdee205 Merge branch 'master' of github.com:NixOS/nix into derivation-header-include-order 2020-07-15 17:58:30 -04:00
Carlo Nucera d090562348 Merge branch 'master' of github.com:NixOS/nix into hash-always-has-type 2020-07-15 17:21:01 -04:00
Eelco Dolstra 832e111494 Merge remote-tracking branch 'origin/master' into flakes 2020-07-14 13:56:18 +02:00
Eelco Dolstra c0dd05131e toStorePath(): Return a StorePath and the suffix 2020-07-13 16:25:48 +02:00
John Ericson 4415765385 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-13 03:01:44 +00:00
John Ericson 503b425690 DerivationOutputExtensional -> DerivationOutputInputAddressed
Thanks @regnat for the great name.
2020-07-12 15:56:20 +00:00
John Ericson 18152406ce String .drv suffix to create derivation name 2020-07-12 15:40:14 +00:00
John Ericson 13ec627e0a Set derivation name in dervationStrict 2020-07-12 03:03:12 +00:00
John Ericson 1c9bec226f Don't improperly assume path is store path 2020-07-12 02:38:03 +00:00
Matthew Bauer a7884970c5 Fix DerivationOutputExtensional name 2020-07-09 11:37:18 -04:00
Matthew Bauer 8e0d0689be Only store hash of fixed derivation output
we don’t need a full storepath for a fixedoutput derivation. So just
putting the ingestion method + the hash is sufficient.
2020-07-08 19:11:39 -04:00
Matthew Bauer af95a7c16b Add name to BasicDerivation
We always have a name for BasicDerivation, since we have a derivation
store path that has a name.
2020-07-08 15:38:01 -04:00
Eelco Dolstra 54712aaf8a Merge remote-tracking branch 'origin/master' into flakes 2020-07-06 16:40:10 +02:00
John Ericson a38ab99d57 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-07-05 21:49:01 +00:00
Ben Burdette 3629b0585a don't include errpos for addErrorContext 2020-07-01 11:49:01 -06:00
Eelco Dolstra 50f13b06fb EvalCache: Store string contexts 2020-06-29 19:08:37 +02:00
Ben Burdette 023912def3 convenience form of addTrace 2020-06-24 13:46:25 -06:00
Ben Burdette 1d43a6e123 use plain errPos instead of nixCode; fix tests 2020-06-23 15:30:13 -06:00
John Ericson 98e5d1af03 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-06-23 17:03:37 +00:00
Ben Burdette abe0552504 Merge remote-tracking branch 'upstream/master' into add-trace 2020-06-23 09:40:28 -06:00
John Ericson 8313f0e939 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-06-21 20:39:10 +00:00
John Ericson fdeabf7160 Merge remote-tracking branch 'upstream/master' into multi-output-hashDerivationModulo 2020-06-21 16:43:17 +00:00
Carlo Nucera e7a14118df WIP bug fixing 2020-06-19 16:50:28 -04:00
Ben Burdette 54e8f550c9 addErrorTrace 2020-06-19 13:44:08 -06:00
John Ericson 68294746ae Merge remote-tracking branch 'upstream/master' into no-hash-type-unknown 2020-06-19 17:53:34 +00:00
John Ericson 2f0e395c99 Merge remote-tracking branch 'me/no-stringly-typed-derivation-output' into validPathInfo-ca-proper-datatype 2020-06-19 15:26:59 +00:00
John Ericson 01dc8b0bab Merge remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output 2020-06-19 14:59:05 +00:00
John Ericson 145d88cb2a Use designated initializers for DerivationOutputHash 2020-06-19 14:58:30 +00:00
John Ericson 237d88c97e FileSystemHash -> DerivationOutputHash 2020-06-19 14:47:10 +00:00
John Ericson 669c3992e8 Merge branch 'no-hash-type-unknown' into validPathInfo-temp 2020-06-18 22:33:07 +00:00
John Ericson 15abb2aa2b Revert the enum struct change
Not a regular git revert as there have been many merges and things.
2020-06-18 22:11:26 +00:00
John Ericson bbbf3602a3 Merge branch 'enum-class' into no-hash-type-unknown 2020-06-18 22:11:19 +00:00
John Ericson 40526fbea5 Merge remote-tracking branch 'upstream/master' into enum-class 2020-06-18 21:38:15 +00:00
Ben Burdette 4d1a4f0217 addTrace 2020-06-18 15:25:26 -06:00
Eelco Dolstra 5771c8bbf2 Don't provide 'getFlake' if the 'flakes' feature is not enabled
(cherry picked from commit 0a1d3c1dd3)
2020-06-18 14:03:00 +02:00
Eelco Dolstra 2a61bbf77f Some backports from the flakes branch 2020-06-18 14:03:00 +02:00
John Ericson 517f5980e2 Merge remote-tracking branch 'upstream/master' into no-stringly-typed-derivation-output 2020-06-17 04:58:43 +00:00
John Ericson 18493fd9c4 Move some Store functions from derivations.cc to store-api.cc
This further continues with the dependency inverstion. Also I just went
ahead and exposed `parseDerivation`: it seems like the more proper
building block, and not a bad thing to expose if we are trying to be
less wedded to drv files on disk anywas.
2020-06-17 04:30:16 +00:00
John Ericson 02928f76fd Merge remote-tracking branch 'upstream/master' into multi-output-hashDerivationModulo 2020-06-17 03:51:02 +00:00
Eelco Dolstra 29542865ce Remove StorePath::clone() and related functions 2020-06-16 22:20:18 +02:00
Eelco Dolstra 1fb762d11f Get rid of explicit ErrorInfo constructors 2020-06-15 14:06:58 +02:00
Eelco Dolstra 7a77762961 Merge branch 'errors-phase-2' of https://github.com/bburdette/nix 2020-06-15 11:46:31 +02:00
Eelco Dolstra 00fa7e2205
Merge pull request #3674 from matthewbauer/allow-empty-hash2
Allow empty hash in derivations
2020-06-12 18:18:12 +02:00
Matthew Bauer b260c9ee03 Add newHashAllowEmpty helper function
This replaces the copy&paste with a helper function in hash.hh.
2020-06-12 10:11:16 -05:00
Eelco Dolstra 9f736dd89d Add Store::readDerivation() convenience function 2020-06-12 13:04:52 +02:00
Eelco Dolstra 045b07200c Remove Store::queryDerivationOutputNames()
This function was used in only one place, where it could easily be
replaced by readDerivation() since it's not
performance-critical. (This function appears to have been modelled
after queryDerivationOutputs(), which exists only to make the garbage
collector faster.)
2020-06-12 12:46:33 +02:00
Matthew Bauer 19aa892f20 Support empty hash in fetchers
fetchTarball, fetchTree, and fetchGit all have *optional* hash attrs.
This means that we need to be careful with what we allow to avoid
accidentally making these defaults. When ‘hash = ""’ we assume the
empty hash is wanted.
2020-06-09 11:10:54 -05:00
Matthew Bauer 762273f1fd Allow empty hash in derivations
follow up of https://github.com/NixOS/nix/pull/3544

This allows hash="" so that it can be used for debugging purposes. For
instance, this gives you an error message like:

  warning: found empty hash, assuming you wanted 'sha256:0000000000000000000000000000000000000000000000000000'
  hash mismatch in fixed-output derivation '/nix/store/asx6qw1r1xk6iak6y6jph4n58h4hdmbm-nix':
    wanted: sha256:0000000000000000000000000000000000000000000000000000
    got:    sha256:0fpfhipl9v1mfzw2ffmxiyyzqwlkvww22bh9wcy4qrfslb4jm429
2020-06-09 01:23:37 -05:00
John Ericson 450dcf2c1b Remove HashType::Unknown
Instead, `Hash` uses `std::optional<HashType>`. In the future, we may
also make `Hash` itself require a known hash type, encoraging people to
use `std::optional<Hash>` instead.
2020-06-02 15:52:13 +00:00
Ben Burdette 734283d636 Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-05-29 09:51:37 -06:00
Carlo Nucera 6dd471ebf6 Fixing the result of merge 2020-05-28 12:14:36 -04:00
Carlo Nucera 4f597fb901 Merge branch 'master' of github.com:NixOS/nix into enum-class 2020-05-28 10:58:22 -04:00
John Ericson 5b4cd84bc2 Merge remote-tracking branch 'me/more-rust-ffi' into no-stringly-typed-derivation-output 2020-05-28 10:35:53 -04:00
Matthew Bauer c66441a646 Rename some variables named “recursive” to “method”
This is much less confusing since recursive is no longer a boolean.
2020-05-27 13:21:26 -05:00
Carlo Nucera d49e65ba9d Merge remote-tracking branch 'john-ericson/enum-FileIngestionMethod' into no-stringly-typed-derivation-output 2020-05-26 12:30:48 -04:00
Carlo Nucera 6d73c10041 Merge remote-tracking branch 'origin/master' into enum-FileIngestionMethod 2020-05-26 11:14:08 -04:00
Lucas Franceschino b2748c6e99 Make functionArgs primitive accept primops 2020-05-25 19:07:38 +02:00
Ben Burdette 4daccb279c formatting 2020-05-14 10:28:17 -06:00
Ben Burdette ef9dd9f9bc formatting and a few minor changes 2020-05-13 15:56:39 -06:00
Ben Burdette b93c1bf3d6 fixes to merged code 2020-05-11 15:52:15 -06:00
Ben Burdette 59b1f5c701 Merge branch 'master' into errors-phase-2 2020-05-11 14:35:30 -06:00
Ben Burdette 55eb717148 add pos to errorinfo, remove from hints 2020-05-08 18:18:28 -06:00
Ben Burdette e4fb9a3849 remove 'format' from Error constructor calls 2020-04-21 17:07:07 -06:00
Domen Kožar 25ed842725
Merge pull request #3502 from NixOS/more-pos
pass Pos to forceValue to improve infinite recursion error
2020-04-18 14:05:21 +02:00
Eelco Dolstra fcd048a526 Use RootValue 2020-04-16 18:02:59 +02:00
Domen Kožar b865b5b40c
pass Pos to forceValue to improve infinite recursion error 2020-04-16 12:32:07 +02:00
Domen Kožar fc144242d5
Merge pull request #3447 from DavHau/improve-tofile-error-msg
improve toFile error message when containing potential drv path
2020-04-11 13:12:11 +02:00
DavHau fc14213d2d improve toFile error message when containing potential drv path 2020-04-11 10:54:26 +00:00
Eelco Dolstra 9ed097db7b
Merge pull request #3468 from Infinisil/functionArgsPositions
Make function arguments retain position info
2020-04-08 15:29:39 +02:00
Eelco Dolstra 462421d345 Backport libfetchers from the flakes branch
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 (c169ea5904).
2020-04-07 09:03:14 +02:00
Silvan Mosberger c34e96f7e0
Make function arguments retain position info
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; }
2020-04-02 05:52:52 +02:00
John Ericson 7e9a2718f0 s/outputHashRecursive/ingestionMethod/c 2020-03-30 22:36:15 +00:00
John Ericson 51afea3af2 Never cast FileIngestionMethod to or from boolean 2020-03-30 22:31:51 +00:00
John Ericson bbbb7c1bc7 Use auto with some FileIngestionMethod local variables 2020-03-30 18:15:55 -04:00
John Ericson 832bd534dc Store parsed hashes in DerivationOutput
It's best to detect invalid data as soon as possible, with data types
that make storing it impossible.
2020-03-30 11:33:35 -04:00
John Ericson 225e62a56a Replace some bool recursive with a new FileIngestionMethod enum 2020-03-29 15:16:20 -04:00
John Ericson 87b32bab05 Use enum struct and drop prefixes
This does a few enums; the rest will be gotten in subsequent commits.
2020-03-29 11:23:15 -04:00
John Ericson f1cf3ab870 hashDerivationModulo: Generalize for multiple fixed ouputs per drv
See documentattion in header and comments in implementation for details.

This is actually done in preparation for floating ca derivations, not
multi-output fixed ca derivations, but the distinction doesn't yet
mattter.

Thanks @cole-h for finding and fixing a bunch of typos.
2020-03-19 10:30:49 -04:00
Eelco Dolstra 9950cdec35 Move some corepkgs into the nix binary 2020-03-11 16:57:48 +01:00
Eelco Dolstra 401b5bc541
builtins.cache: Cache regular expressions
The evaluator was spending about 1% of its time compiling a small
number of regexes over and over again.
2020-03-04 11:44:33 +01:00
Eelco Dolstra aef635da78 Fix derivation computation with __structuredAttrs and multiple outputs
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'
2020-01-21 21:14:13 +01:00
Eelco Dolstra bbe97dff8b Make the Store API more type-safe
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).
2019-12-10 22:06:05 +01:00
Eelco Dolstra 2d6f1ddbb5
Remove builtins.valueSize
Fixes #3246.
2019-11-28 13:52:42 +01:00
Eelco Dolstra ba87b08f85
getEnv(): Return std::optional
This allows distinguishing between an empty value and no value.
2019-11-22 16:18:13 +01:00
Eelco Dolstra 99b73fb507
OCD performance fix: {find,count}+insert => insert 2019-10-09 16:06:29 +02:00
Eelco Dolstra 168a887916
Fix fetchTarball with chroot stores
Fixes #2405.
2019-10-01 07:51:06 +00:00
Bas van Dijk 89865144c3 Allow builtins.pathExists to check the existence of /nix/store paths
This makes it consitent with builtins.readDir.
2019-07-30 11:27:35 +02:00
Eelco Dolstra f8b30338ac
Refactor downloadCached() interface
(cherry picked from commit df3f5a78d5)
2019-06-24 22:12:26 +02:00
Eelco Dolstra dc29e9fb47
downloadCached: Return ETag
(cherry picked from commit 529add316c)
2019-06-24 21:58:33 +02:00
Daniel Schaefer 3f192ac80c Add builtins.hashFile
For text files it is possible to do it like so:
`builtins.hashString "sha256" (builtins.readFile /tmp/a)`
but that doesn't work for binary files.

With builtins.hashFile any kind of file can be conveniently hashed.
2019-05-03 17:23:36 +02:00