Commit graph

7567 commits

Author SHA1 Message Date
Eelco Dolstra
e279fbb16a needsNetworkAccess() -> isSandboxed() 2022-03-31 16:06:40 +02:00
Eelco Dolstra
4e043c2f32 Document isPure() 2022-03-31 16:01:50 +02:00
Eelco Dolstra
d7fc33c842 Fix macOS build 2022-03-31 15:59:14 +02:00
Eelco Dolstra
18935e8b9f Support fixed-output derivations depending on impure derivations 2022-03-31 13:43:20 +02:00
Eelco Dolstra
5cd72598fe Add support for impure derivations
Impure derivations are derivations that can produce a different result
every time they're built. Example:

  stdenv.mkDerivation {
    name = "impure";
    __impure = true; # marks this derivation as impure
    outputHashAlgo = "sha256";
    outputHashMode = "recursive";
    buildCommand = "date > $out";
  };

Some important characteristics:

* This requires the 'impure-derivations' experimental feature.

* Impure derivations are not "cached". Thus, running "nix-build" on
  the example above multiple times will cause a rebuild every time.

* They are implemented similar to CA derivations, i.e. the output is
  moved to a content-addressed path in the store. The difference is
  that we don't register a realisation in the Nix database.

* Pure derivations are not allowed to depend on impure derivations. In
  the future fixed-output derivations will be allowed to depend on
  impure derivations, thus forming an "impurity barrier" in the
  dependency graph.

* When sandboxing is enabled, impure derivations can access the
  network in the same way as fixed-output derivations. In relaxed
  sandboxing mode, they can access the local filesystem.
2022-03-31 13:43:20 +02:00
Eelco Dolstra
0fe8849914
Merge pull request #6337 from danpls/fix-to-json-repl
libexpr: Throw the correct error in toJSON
2022-03-31 11:33:16 +02:00
Eelco Dolstra
28309352d9 replaceEnv(): Pass newEnv by reference 2022-03-31 10:39:53 +02:00
Tom Bereknyei
50f9f335c9 profile!: consistent use of url/uri. create new version 2022-03-30 16:35:26 -04:00
Tom Bereknyei
d77823b502 bundler: update default bundler to support new bundler API 2022-03-30 16:10:42 -04:00
Daniel Pauls
629edd43ba libutil: Change return value of addTrace to void
The return value of BaseError::addTrace(...) is never used and
error-prone as subclasses calling it will return a BaseError instead of
the subclass.
This commit changes its return value to be void.
2022-03-30 18:37:32 +02:00
Daniel Pauls
fa83b865a2 libexpr: Throw the correct error in toJSON
BaseError::addTrace(...) returns a BaseError, but we want to
throw a TypeError instead.

Fixes #6336.
2022-03-30 15:50:13 +02:00
Théophane Hufschmitt
390269ed87 Simplify the handling of the hash modulo
Rather than having four different but very similar types of hashes, make
only one, with a tag indicating whether it corresponds to a regular of
deferred derivation.

This implies a slight logical change: The original Nix+multiple-outputs
model assumed only one hash-modulo per derivation. Adding
multiple-outputs CA derivations changed this as these have one
hash-modulo per output. This change is now treating each derivation as
having one hash modulo per output.
This obviously means that we internally loose the guaranty that
all the outputs of input-addressed derivations have the same hash
modulo. But it turns out that it doesn’t matter because there’s nothing
in the code taking advantage of that fact (and it probably shouldn’t
anyways).

The upside is that it is now much easier to work with these hashes, and
we can get rid of a lot of useless `std::visit{ overloaded`.

Co-authored-by: John Ericson <John.Ericson@Obsidian.Systems>
2022-03-29 18:17:35 +02:00
Théophane Hufschmitt
2d572a250f
Merge pull request #6330 from edolstra/run-remote-store
nix {run,shell}: Print a better error message if the store is not local
2022-03-28 17:57:37 +02:00
Eelco Dolstra
b266fd53dd nix {run,shell}: Print a better error message if the store is not local
Closes #6317
2022-03-28 14:58:38 +02:00
Eelco Dolstra
057f9ee190 nix profile install: Don't use queryDerivationOutputMap()
Instead get the outputs from Installable::build(). This will also
allow 'nix profile install' to support impure derivations.

Fixes #6286.
2022-03-28 14:23:39 +02:00
Erik Arvstedt
16860a0328 nix eval: Add option read-only 2022-03-26 11:32:38 +01:00
Erik Arvstedt
679b3b32c9 Minor comment fix 2022-03-26 11:32:37 +01:00
Eelco Dolstra
1844172dd1
Merge pull request #6314 from edolstra/experimental-primop
Only provide builtins is the corresponding experimental feature is enabled
2022-03-25 16:16:31 +01:00
Eelco Dolstra
16cf1e6089
Merge pull request #6311 from edolstra/return-wanted-paths
Make buildPathsWithResults() only return info on wanted outputs
2022-03-25 15:44:39 +01:00
Eelco Dolstra
fc35b11a7c Fix mismatched tag warning on clang 2022-03-25 15:22:22 +01:00
Eelco Dolstra
8c363eb3eb Document getFlake
Fixes #5523.
2022-03-25 14:19:55 +01:00
Eelco Dolstra
86b05ccd54 Only provide builtin.{getFlake,fetchClosure} is the corresponding experimental feature is enabled
This allows writing fallback code like

  if builtins ? fetchClosure then
    builtins.fetchClose { ... }
  else
    builtins.storePath ...
2022-03-25 14:04:18 +01:00
Eelco Dolstra
55bc524019
Merge pull request #6051 from Ma27/fix-empty-nix-log
`nix log` should also work if the log didn't provide any output
2022-03-25 10:35:10 +01:00
Eelco Dolstra
50c229ad9a
Use wantOutput
Co-authored-by: John Ericson <git@JohnEricson.me>
2022-03-25 08:02:49 +01:00
polykernel
cbcb69a39c nix: allow whitespace characters before command in repl
Before this change, processLine always uses the first character
as the start of the line. This cause whitespaces to matter at the
beginning of the line whereas it does not matter anywhere else.

This commit trims leading white spaces of the string line so that
subsequent operations can be performed on the string without explicitly
tracking starting and ending indices of the string.
2022-03-24 21:33:29 -04:00
Eelco Dolstra
540d7e33d8 Retry substitution after an incomplete closure only once
This avoids an infinite loop in the final test in
tests/binary-cache.sh. I think this was only not triggered previously
by accident (because we were clearing wantedOutputs in between).
2022-03-24 23:25:12 +01:00
Eelco Dolstra
fe5509df9a Only return wanted outputs 2022-03-24 23:24:48 +01:00
Eelco Dolstra
09796c0263 Random cleanup 2022-03-24 23:24:10 +01:00
Eelco Dolstra
175c78591b Random cleanup 2022-03-24 23:09:43 +01:00
Maximilian Bosch
c85467a1b6
Revert "TarArchive: Small refactoring"
This reverts commit 50a35860ee.

With this change Nix fails to open bzip2 logfiles that were created from
builds with no stdout/stderr.
2022-03-24 22:30:46 +01:00
Eelco Dolstra
f902f3c2cb Add experimental feature 'fetch-closure' 2022-03-24 21:33:33 +01:00
Eelco Dolstra
e5f7029ba4 nix store make-content-addressed: Support --from / --to 2022-03-24 21:33:33 +01:00
Eelco Dolstra
98658ae9d2 Document fetchClosure 2022-03-24 21:33:33 +01:00
Eelco Dolstra
28186b7044 Add a test for fetchClosure and 'nix store make-content-addressed' 2022-03-24 21:33:33 +01:00
Eelco Dolstra
4120930ac1 fetchClosure: Only allow some "safe" store types 2022-03-24 21:33:33 +01:00
Eelco Dolstra
7ffda0af6e fetchClosure: Skip makeContentAddressed() if toPath is already valid 2022-03-24 21:33:33 +01:00
Eelco Dolstra
5acaf13d35 Rename 'nix store make-content-addressable' to 'nix store make-content-addressed' 2022-03-24 21:33:33 +01:00
Eelco Dolstra
f18607549c Fix makeContentAddressed() on self-references
LocalStore::addToStore() since
79ae9e4558 expects a regular NAR hash,
rather than a NAR hash modulo self-references. Fixes #6300.

Also, makeContentAddressed() now rewrites the entire closure (so 'nix
store make-content-addressable' no longer needs '-r'). See #6301.
2022-03-24 21:33:33 +01:00
Eelco Dolstra
545c2d0d8c fetchClosure: Allow a path to be rewritten to CA on the fly
The advantage is that the resulting closure doesn't need to be signed,
so you don't need to configure any binary cache keys on the client.
2022-03-24 21:33:33 +01:00
Eelco Dolstra
7f6fe8ca1d Rename 2022-03-24 21:33:33 +01:00
Eelco Dolstra
41659418cf fetchClosure: Require a CA path in pure mode 2022-03-24 21:33:33 +01:00
Eelco Dolstra
f4bafc412f Add builtins.fetchClosure
This allows closures to be imported at evaluation time, without
requiring the user to configure substituters. E.g.

  builtins.fetchClosure {
    storePath = /nix/store/f89g6yi63m1ywfxj96whv5sxsm74w5ka-python3.9-sqlparse-0.4.2;
    from = "https://cache.ngi0.nixos.org";
  }
2022-03-24 21:33:33 +01:00
Eelco Dolstra
d67fe90375
Merge pull request #6305 from flox/genericClosure_doc
docs: genericClosure
2022-03-24 14:02:58 +01:00
Tom Bereknyei
0736f3651d docs: genericClosure 2022-03-24 08:03:59 -04:00
Rok Garbas
4546a007a4
Fix flake profile use of originalUrl vs. originalUri
Fixes #5872
2022-03-24 12:28:38 +01:00
Sergei Trofimovich
9174d884d7 lexer: add error location to lexer errors
Before the change lexter errors did not report the location:

    $ nix build -f. mc
    error: path has a trailing slash
    (use '--show-trace' to show detailed location information)

Note that it's not clear what file generates the error.

After the change location is reported:

    $ src/nix/nix --extra-experimental-features nix-command build -f ~/nm mc
    error: path has a trailing slash

           at .../pkgs/development/libraries/glib/default.nix:54:18:

               53|   };
               54|   src = /tmp/foo/;
                 |                  ^
               55|
    (use '--show-trace' to show detailed location information)

Here we see both problematic file and the string itself.
2022-03-24 08:16:14 +00:00
Hideaki Kawai
3b776cb0a7 nix edit: support kakoune 2022-03-22 23:18:02 +09:00
Eelco Dolstra
a0259a21a4 Don't hide repeated values while generating manifest.nix
Fixes #6243.
2022-03-22 13:18:56 +01:00
Eelco Dolstra
732296ddc0 printValue(): <REPEAT> -> «repeated»
This ensures that it doesn't get parsed as a valid Nix expression.
2022-03-22 13:00:27 +01:00
Eelco Dolstra
0b42afe027 buildProfile(): Ignore manifest.{nix,json}
If a package installs a file named manifest.json, it caused nix-env to
consider the profile a new-style profile created by 'nix
profile'. Fixes #6032.
2022-03-22 10:48:02 +01:00
Eelco Dolstra
e4ff430866
Merge pull request #6237 from obsidiansystems/store-path-string-context
Decode string context straight to using StorePaths
2022-03-22 10:29:46 +01:00
Gabriel Fontes
9720797f69
Don't partial match sourcehut refs 2022-03-19 11:04:04 -03:00
Gabriel Fontes
345a8ee0cb
Fix sourcehut tag ref resolving 2022-03-19 10:56:13 -03:00
John Ericson
4d6a3806d2 Decode string context straight to using StorePaths
I gather decoding happens on demand, so I hope don't think this should
have any perf implications one way or the other.
2022-03-18 15:36:11 +00:00
John Ericson
a544ed7684 Generalize DerivationType in preparation for impure derivations 2022-03-18 14:59:56 +00:00
John Ericson
049fae155a Avoid some pointless copying of drvs 2022-03-18 14:59:56 +00:00
John Ericson
8496be7def Use Deferred when building an input-addressed drv
Easier than using dummy path with input addressed.
2022-03-18 14:59:56 +00:00
John Ericson
197feed51d Clean up DerivationOutput, and headers
1. `DerivationOutput` now as the `std::variant` as a base class. And the
   variants are given hierarchical names under `DerivationOutput`.

   In 8e0d0689be @matthewbauer and I
   didn't know a better idiom, and so we made it a field. But this sort
   of "newtype" is anoying for literals downstream.

   Since then we leaned the base class, inherit the constructors trick,
   e.g. used in `DerivedPath`. Switching to use that makes this more
   ergonomic, and consistent.

2. `store-api.hh` and `derivations.hh` are now independent.

   In bcde5456cc I swapped the dependency,
   but I now know it is better to just keep on using incomplete types as
   much as possible for faster compilation and good separation of
   concerns.
2022-03-17 22:35:53 +00:00
Eelco Dolstra
6afc361798
Merge pull request #6277 from thufschmitt/ca/nix-build-dry-run
Fix `nix build --dry-run` with CA derivations
2022-03-17 22:23:15 +01:00
Eelco Dolstra
d8f69b9a4c Merge branch 'avoid-quadratic-gc' of https://github.com/trofi/nix 2022-03-17 21:35:42 +01:00
Sergei Trofimovich
d58453f72e gc: don't visit implicit referrers on garbage collection
Before the change garbage collector was not considering
`.drv` and outputs as alive even if configuration says otherwise.
As a result `nix store gc --dry-run` could visit (and parse)
`.drv` files multiple times (worst case it's quadratic).

It happens because `alive` set was populating only runtime closure
without regard for actual configuration. The change fixes it.

Benchmark: my system has about 139MB, 40K `.drv` files.

Performance before the change:

    $ time nix store gc --dry-run
    real    4m22,148s

Performance after the change:

    $ time nix store gc --dry-run
    real    0m14,178s
2022-03-17 18:47:29 +00:00
Théophane Hufschmitt
7117053457
Merge pull request #6270 from Artturin/stdineval
nix: allow using --file - to read from stdin
2022-03-17 14:35:01 +01:00
Théophane Hufschmitt
3fc4c612fb Fix nix build --dry-run with CA derivations
Don’t try and assume that we know the output paths when we’ve just built
with `--dry-run`. Instead make `--dry-run` follow a different code path
that won’t assume the knowledge of the output paths at all.

Fix #6275
2022-03-17 11:55:19 +01:00
Théophane Hufschmitt
a0b517de57
Merge pull request #6242 from ncfavier/print-output-names
nix-env: always print output names in JSON and XML
2022-03-17 10:55:22 +01:00
Naïm Favier
8dcecc0738
nix-env: print a final newline after JSON 2022-03-16 21:26:19 +01:00
Naïm Favier
5736661922
nix-env: always print output names in JSON and XML
The current `--out-path` flag has two disadvantages when one is only
concerned with querying the names of outputs:
- it requires evaluating every output's `outPath`, which takes
  significantly more resources and runs into more failures
- it destroys the information of the order of outputs so we can't tell
  which one is the main output

This patch makes the output names always present (replacing paths with
`null` in JSON if `--out-path` isn't given), and adds an `outputName`
field.
2022-03-16 21:26:19 +01:00
Artturin
a5c969db49 nix: allow using --file - to read from stdin 2022-03-16 21:01:51 +02:00
Eelco Dolstra
a53c1dc96d
Merge pull request #6245 from trofi/fix-nix-store-gc-limit-auto-optimise-store
nix store gc: account for auto-optimised store
2022-03-16 09:19:57 +01:00
Théophane Hufschmitt
516a7ac4de
Merge pull request #6229 from obsidiansystems/refactor-hash-modulo
Overhaul derivation hash modulo somewhat
2022-03-15 21:23:44 +01:00
Maximilian Bosch
244baff2c7
libfetchers: remove obsolete filesystem #include 2022-03-15 12:32:11 +01:00
Maximilian Bosch
34e20c164c
libfetchers/path: set lastModified to path's mtime
When importing e.g. a local `nixpkgs` in a flake to test a change like

    {
      inputs.nixpkgs.url = path:/home/ma27/Projects/nixpkgs;
      outputs = /* ... */
    }

then the input is missing a `lastModified`-field that's e.g. used in
`nixpkgs.lib.nixosSystem`. Due to the missing `lastMoified`-field, the
mtime is set to 19700101:

    result -> /nix/store/b7dg1lmmsill2rsgyv2w7b6cnmixkvc1-nixos-system-nixos-22.05.19700101.dirty

With this change, the `path`-fetcher now sets a `lastModified` attribute
to the `mtime` just like it's the case in the `tarball`-fetcher already.
When building NixOS systems with `nixpkgs` being a `path`-input and this
patch, the output-path now looks like this:

    result -> /nix/store/ld2qf9c1s98dxmiwcaq5vn9k5ylzrm1s-nixos-system-nixos-22.05.20220217.dirty
2022-03-15 12:32:11 +01:00
Eelco Dolstra
a61809722f
Merge pull request #6244 from Artturin/nixenvbettermessage
nix-env: Add a suggestion for when there's a name collision in channels
2022-03-14 14:17:50 +01:00
Théophane Hufschmitt
0e86ebf461
Merge pull request #6220 from obsidiansystems/log-store
Factor out a `LogStore` interface
2022-03-14 10:51:01 +01:00
Sergei Trofimovich
6b1872312f nix store gc: account for auto-optimised store
Before the change on a system with `auto-optimise-store = true`:

    $ nix store gc --verbose --max 1

deleted all the paths instead of one path (we requested 1 byte limit).

It happens because every file in `auto-optimise-store = true` has at
least 2 links: file itself and a link in /nix/store/.links/ directory.

The change conservatively assumes that any file that has one (as before)
or two links (assume auto-potimise mode) will free space.

Co-authored-by: Sandro <sandro.jaeckel@gmail.com>
2022-03-13 07:24:48 +00:00
Artturin
cb1a76112e nix-env: Add a suggestion for when there's a name collision in channels
help new users find a solution to their problem

./result/bin/nix-env -qa hello
warning: name collision in input Nix expressions, skipping '/home/artturin/.nix-defexpr/channels_root/master'
suggestion: remove 'master' from either the root channels or the user channels
hello-2.12
hello-2.12
2022-03-13 00:24:46 +02:00
John Ericson
91adfb8894 Create some type aliases for string Contexts 2022-03-11 22:30:10 +00:00
John Ericson
0948b8e94d Reduce variants for derivation hash modulo
This changes was taken from dynamic derivation (#4628). It` somewhat
undoes the refactors I first did for floating CA derivations, as the
benefit of hindsight + requirements of dynamic derivations made me
reconsider some things.

They aren't to consequential, but I figured they might be good to land
first, before the more profound changes @thufschmitt has in the works.
2022-03-11 21:20:37 +00:00
John Ericson
015d2ad507 Desugar StorePathWithOutputs in nix-build implementation
`DerivedPath` has replaced `StorePathWithOutputs` internally, so
shrinking the usage of `StorePathWithOutputs` to just the boundary is
good.
2022-03-11 20:50:52 +00:00
Kevin Amado
2191dab657
nix-fmt: add command 2022-03-11 10:00:19 -05:00
John Ericson
a03b1fd7f6 Deduplicate the Store downcasting with a template 2022-03-11 13:32:33 +00:00
John Ericson
678d1c2aa0 Factor out a LogStore interface
Continue progress on #5729.

Just as I hoped, this uncovered an issue: the daemon protocol is missing
a way to query build logs. This doesn't effect `unix://`, but does
effect `ssh://`. A FIXME is left for this, so we come back to it later.
2022-03-11 13:32:16 +00:00
John Ericson
89effe9d4a GcStore::resolve should print the URI 2022-03-11 13:27:38 +00:00
John Ericson
073e134de6 Rename requireGcStore to GcStore::require
I should have done this to begin with. This will be nicer once more
Store sub-interfaces exist too, to illustrate the pattern.
2022-03-11 13:27:38 +00:00
Eelco Dolstra
aee56e0f89 Merge remote-tracking branch 'origin/eval-suggestions' 2022-03-11 12:02:26 +01:00
Eelco Dolstra
31a392dfe2 Merge pull request #5865 from pennae/memory-friendliness
be more memory friendly
2022-03-11 11:52:39 +01:00
Eelco Dolstra
167766b65c Style 2022-03-11 11:19:21 +01:00
Théophane Hufschmitt
7ebd6f1093
Merge pull request #5758 from mschwaig/fix-git-workspace-dirty-detection
git fetcher: fix detection of dirty git workspaces
2022-03-11 09:35:01 +01:00
Eelco Dolstra
4d98143914 BuildResult: Remove unused drvPath field 2022-03-09 20:31:50 +01:00
Eelco Dolstra
761242afa0 BuildResult: Use DerivedPath 2022-03-09 12:25:35 +01:00
pennae
4d629c4f7a add HAVE_BOEHMGC guards to batched allocation functions 2022-03-09 00:18:50 +01:00
pennae
8e2eaaaf69 make Finally more local
no need for function<> with c++17 deduction. this saves allocations and virtual
calls, but has the same semantics otherwise. not going through function has the
side effect of giving compilers more insight into the cleanup code, so we need a
few local warning disables.
2022-03-09 00:16:50 +01:00
pennae
47baa9d43c make Pos smaller
reduces peak hep memory use on eval of our test system from 264.4MB to 242.3MB,
possibly also a slight performance boost.

theoretically memory use could be cut down by another eight bytes per Pos on
average by turning it into a tuple containing an index into a global base
position table with row and column offsets, but that doesn't seem worth the
effort at this point.
2022-03-08 23:30:18 +01:00
pennae
c96460f352 force-inline a few much-used functions
these functions are called a whole lot, and they're all comparatively small.
always inlining them gives ~0.7% performance boost on eval.

before:

  Benchmark 1: nix flakes search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      6.935 s ±  0.052 s    [User: 5.852 s, System: 0.853 s]
    Range (min … max):    6.808 s …  7.026 s    20 runs

  Benchmark 2: nix flakes eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
    Time (mean ± σ):     329.8 ms ±   2.7 ms    [User: 299.0 ms, System: 30.8 ms]
    Range (min … max):   326.6 ms … 336.5 ms    20 runs

  Benchmark 3: nix flakes eval --raw --impure --file expr.nix
    Time (mean ± σ):      2.655 s ±  0.038 s    [User: 2.364 s, System: 0.220 s]
    Range (min … max):    2.574 s …  2.737 s    20 runs

after:

  Benchmark 1: nix flakes search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      6.912 s ±  0.036 s    [User: 5.823 s, System: 0.856 s]
    Range (min … max):    6.849 s …  6.980 s    20 runs

  Benchmark 2: nix flakes eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
    Time (mean ± σ):     325.1 ms ±   2.5 ms    [User: 293.2 ms, System: 31.8 ms]
    Range (min … max):   322.2 ms … 332.8 ms    20 runs

  Benchmark 3: nix flakes eval --raw --impure --file expr.nix
    Time (mean ± σ):      2.636 s ±  0.024 s    [User: 2.352 s, System: 0.226 s]
    Range (min … max):    2.574 s …  2.681 s    20 runs
2022-03-08 23:30:18 +01:00
pennae
60ed4e908a cache singleton Envs just like Values
vast majority of envs is this size.

before:

  Benchmark 1: nix flakes search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      6.946 s ±  0.041 s    [User: 5.875 s, System: 0.835 s]
    Range (min … max):    6.834 s …  7.005 s    20 runs

  Benchmark 2: nix flakes eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
    Time (mean ± σ):     330.3 ms ±   2.5 ms    [User: 299.2 ms, System: 30.9 ms]
    Range (min … max):   327.5 ms … 337.7 ms    20 runs

  Benchmark 3: nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
    Time (mean ± σ):      2.671 s ±  0.035 s    [User: 2.370 s, System: 0.232 s]
    Range (min … max):    2.597 s …  2.749 s    20 runs

after:

  Benchmark 1: nix flakes search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      6.935 s ±  0.052 s    [User: 5.852 s, System: 0.853 s]
    Range (min … max):    6.808 s …  7.026 s    20 runs

  Benchmark 2: nix flakes eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
    Time (mean ± σ):     329.8 ms ±   2.7 ms    [User: 299.0 ms, System: 30.8 ms]
    Range (min … max):   326.6 ms … 336.5 ms    20 runs

  Benchmark 3: nix flakes eval --raw --impure --file expr.nix
    Time (mean ± σ):      2.655 s ±  0.038 s    [User: 2.364 s, System: 0.220 s]
    Range (min … max):    2.574 s …  2.737 s    20 runs
2022-03-08 23:30:18 +01:00
pennae
4b2b0d3a55 remove GC_PTR_STORE_AND_DIRTY
turns out it's only necessary for MANUAL_VDB, which nix doesn't use. omitting
them gives a slight performance improvement on eval.

before:

  Benchmark 1: nix flakes search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      6.988 s ±  0.061 s    [User: 5.935 s, System: 0.845 s]
    Range (min … max):    6.865 s …  7.075 s    20 runs

  Benchmark 2: nix flakes eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
    Time (mean ± σ):     332.6 ms ±   3.9 ms    [User: 299.6 ms, System: 32.9 ms]
    Range (min … max):   328.1 ms … 339.1 ms    20 runs

  Benchmark 3: nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
    Time (mean ± σ):      2.681 s ±  0.049 s    [User: 2.382 s, System: 0.228 s]
    Range (min … max):    2.607 s …  2.776 s    20 runs

after:

  Benchmark 1: nix flakes search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      6.946 s ±  0.041 s    [User: 5.875 s, System: 0.835 s]
    Range (min … max):    6.834 s …  7.005 s    20 runs

  Benchmark 2: nix flakes eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
    Time (mean ± σ):     330.3 ms ±   2.5 ms    [User: 299.2 ms, System: 30.9 ms]
    Range (min … max):   327.5 ms … 337.7 ms    20 runs

  Benchmark 3: nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
    Time (mean ± σ):      2.671 s ±  0.035 s    [User: 2.370 s, System: 0.232 s]
    Range (min … max):    2.597 s …  2.749 s    20 runs
2022-03-08 23:30:18 +01:00
Eelco Dolstra
a4604f1928 Add Store::buildPathsWithResults()
This function is like buildPaths(), except that it returns a vector of
BuildResults containing the exact statuses and output paths of each
derivation / substitution. This is convenient for functions like
Installable::build(), because they then don't need to do another
series of calls to get the outputs of CA derivations. It's also a
precondition to impure derivations, where we *can't* query the output
of those derivations since they're not stored in the Nix database.

Note that PathSubstitutionGoal can now also return a BuildStatus.
2022-03-08 19:56:34 +01:00
regnat
f6078e474d Also display some suggestions for invalid formal arguments
```console
$ nix eval --expr '({ foo ? 1 }: foo) { fob = 2; }'
error: anonymous function at (string):1:2 called with unexpected argument 'fob'

       at «string»:1:1:

            1| ({ foo ? 1 }: foo) { fob = 2; }
             | ^
       Did you mean foo?
```

Not that because Nix will first check for _missing_ arguments before
checking for extra arguments, `({ foo }: foo) { fob = 1; }` will
complain about the missing `foo` argument (rather than extra `fob`) and
so won’t display a suggestion.
2022-03-08 16:40:22 +01:00
regnat
33b7514035 Try and make the darwin build happy 2022-03-08 16:07:17 +01:00
regnat
0c6e46e349 Add some suggestions to the evaluator
Make the evaluator show some suggestions when trying to access an
invalid field from an attrset.

```console
$ nix eval --expr '{ foo = 1; }.foa'
error: attribute 'foa' missing

       at «string»:1:1:

            1| { foo = 1; }.foa
             | ^
       Did you mean foo?
```
2022-03-08 06:21:45 +01:00
Eelco Dolstra
504e3b2a8f Style 2022-03-07 20:07:43 +01:00
Eelco Dolstra
fa614fac7f Merge branch 'GuillaumeDesforges/issue6192' of https://github.com/GuillaumeDesforges/nix 2022-03-07 19:58:06 +01:00
Eelco Dolstra
30ddd37873 Merge branch 'cli-suggestions' of https://github.com/thufschmitt/nix 2022-03-07 19:47:45 +01:00
Guillaume Desforges
436c6e900f Explicit error in flake init/new when not in store 2022-03-07 17:57:52 +01:00
regnat
dcf4f77fac Merge or-suggestions.hh into suggestions.hh
No real need for keeping a separate header for such a simple class.

This requires changing a bit `OrSuggestions<T>::operator*` to not throw
an `Error` to prevent a cyclic dependency. But since this error is only
thrown on programmer error, we can replace the whole method by a direct
call to `std::get` which will raise its own assertion if needs be.
2022-03-07 17:49:02 +01:00
Robert Hensing
da260f579d dupStringWithLen -> makeImmutableString
Refactor the `size == 0` logic into a new helper function that
replaces dupStringWithLen.
The name had to change, because unlike a `dup`-function, it does
not always allocate a new string.
2022-03-07 16:09:12 +01:00
Robert Hensing
bbf55383e7 Value::mkPath: Avoid potential crash from null string_view 2022-03-07 16:09:12 +01:00
Robert Hensing
1b978596b5 Value::mkString: Avoid crash from null string_view 2022-03-07 16:09:12 +01:00
Naïm Favier
da7d8daa77
Add shell completion for --override-flake
Requires moving the MixEvalArgs class from libexpr to libcmd because
that's where completeFlakeRef is.
2022-03-07 12:01:54 +01:00
Naïm Favier
55c6906701
Perform tilde expansion when completing flake fragments
Allows completing `nix build ~/flake#<Tab>`.
We can implement expansion for `~user` later if needed.
Not using wordexp(3) since that expands way too much.
2022-03-07 12:01:54 +01:00
Naïm Favier
5461ff532d
Make completeDir follow symlinks
Allows completing `nix why-depends /run/cur<Tab>` to /run/current-system
2022-03-07 12:01:54 +01:00
Naïm Favier
a6d7cd4183
Ensure the completion marker is not processed beyond completion
I was surprised to see an error mentioning ___COMPLETE___ when trying to
complete a flag argument that had no completer implemented
2022-03-07 12:01:54 +01:00
Naïm Favier
5f06a91bf7
Fix completion of nested attributes in completeInstallable
Without this, completing `nix eval -f file.nix foo.<Tab>` suggests `bar`
instead of `foo.bar`, which messes up the command
2022-03-07 12:01:54 +01:00
Naïm Favier
7ddcb39206
Add shell completion for --override-input 2022-03-07 12:01:54 +01:00
Naïm Favier
7f5cf87d56
Accept and discard fragments in getFlakeRefForCompletion
Otherwise trying to complete `nix build foo#bar --update-input <Tab>`
fails with "unexpected fragment"
2022-03-07 12:01:54 +01:00
regnat
313bbc07a8 Implement operator<< for Suggestions
That way there’s no need to explicitely convert it to a string when
printing it
2022-03-07 10:09:10 +01:00
regnat
fd45d85b41 Move OrSuggestions to its own header
Prevents a recursive inclusion
2022-03-07 10:09:10 +01:00
regnat
98e361ad4c Also display suggestions for the commands using the eval cache
Make `nix build .#nix-armv8l-linux` work for example
2022-03-07 10:09:10 +01:00
regnat
2405bbbb5e Add some tests for the suggestions 2022-03-07 10:09:10 +01:00
regnat
c0792b1546 Implement a suggestions mechanism
Each `Error` class now includes a set of suggestions, and these are printed by
the top-level handler.
2022-03-07 10:09:09 +01:00
Théophane Hufschmitt
a2ace54fe4
Merge pull request #6029 from Ma27/nix-log-ssh-ng
ssh-ng: also store build logs to make them accessible by `nix log`
2022-03-07 09:51:40 +01:00
Nicholas Sielicki
314852a10e
Point to new github oauth docs url
Previous URL was 404'ing.
2022-03-06 17:01:14 -06:00
John Ericson
6636202356 Factor out a GcStore interface
Starts progress on #5729.

The idea is that we should not have these default methods throwing
"unimplemented". This is a small step in that direction.

I kept `addTempRoot` because it is a no-op, rather than failure. Also,
as a practical matter, it is called all over the place, while doing
other tasks, so the downcasting would be annoying.

Maybe in the future I could move the "real" `addTempRoot` to `GcStore`,
and the existing usecases use a `tryAddTempRoot` wrapper to downcast or
do nothing, but I wasn't sure whether that was a good idea so with a
bias to less churn I didn't do it yet.
2022-03-03 19:01:25 +00:00
Eelco Dolstra
e9c04c3351 Be more aggressive in hiding repeated values
We now memoize on Bindings / list element vectors rather than Values,
so that e.g. two Values that point to the same Bindings will be
printed only once.
2022-03-03 13:33:34 +01:00
Eelco Dolstra
ecff9d969a printValue(): Don't show repeated values
Fixes #6157.
2022-03-03 13:18:23 +01:00
Eelco Dolstra
6097790863 Fix segfault in headerCallback()
https://hydra.nixos.org/build/168594664
2022-03-03 11:11:16 +01:00
Eelco Dolstra
a7c835e9cb
Use C++11-style initializer
Co-authored-by: John Ericson <git@JohnEricson.me>
2022-03-03 10:02:11 +01:00
Eelco Dolstra
b55d79728c Add EvalState::coerceToStorePath() helper
This is useful whenever we want to evaluate something to a store path
(e.g. in get-drvs.cc).

Extracted from the lazy-trees branch (where we can require that a
store path must come from a store source tree accessor).
2022-03-02 23:58:58 +01:00
Eelco Dolstra
161f798aa1 nix profile: Support CA derivations 2022-03-02 20:38:51 +01:00
Eelco Dolstra
54888b92de Move installables-related operations 2022-03-02 19:19:51 +01:00
Eelco Dolstra
b39ef07414 Style 2022-03-02 11:46:15 +01:00
Eelco Dolstra
010ffc31f8 Remove stray debug line 2022-03-02 11:20:32 +01:00
Eelco Dolstra
03df331c3f
Merge pull request #6189 from obsidiansystems/build-result-header
Move `BuildResult` defintion to its own header
2022-03-02 08:47:51 +01:00
Anders Kaseorg
b5cd3e2d5c filterANSIEscapes: Ignore BEL character
GCC is not as good at music as it seems to think it is.  Fixes #4546.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2022-03-01 15:35:42 -08:00
John Ericson
e862833ec6 Move BuildResult defintion to its own header
Just like we did for `ValidPathInfo` in
d92d4f85a5.
2022-03-01 19:43:07 +00:00
Eelco Dolstra
0cb5af5000
Merge pull request #6185 from hercules-ci/fetchTree-reuse-local-paths
fetchTree: Use isValidPath, add comment
2022-03-01 13:15:42 +01:00
Robert Hensing
b6deca7c0d fetchTree: Use isValidPath, add comment 2022-03-01 12:11:10 +01:00
Eelco Dolstra
d974d2ad59 fetch{url,Tarball}: Remove 'narHash' attribute
This was introduced in #6174. However fetch{url,Tarball} are legacy
and we shouldn't have an undocumented attribute that does the same
thing as one that already exists ('sha256').
2022-03-01 11:30:26 +01:00
Eelco Dolstra
9ab81a9d38
Merge pull request #6183 from obsidiansystems/sort-config
Move some stuff from `Settings` to a new `FetchSettings`.
2022-03-01 10:52:55 +01:00
John Ericson
ea71da395f Move some stuff from Settings to a new FetchSettings.
Starting work on #5638

The exact boundary between `FetchSettings` and `EvalSettings` is not
clear to me, but that's fine. First lets clean out `libstore`, and then
worry about what, if anything, should be the separation between those
two.
2022-03-01 01:39:25 +00:00
Robert Hensing
ee019d0afc Add EvalState::allowAndSetStorePathString helper
This switches addPath from `printStorePath` to `toRealPath`.
2022-02-28 21:37:49 +01:00
Robert Hensing
158280d8e9 fetchTree: Do not re-fetch paths already present 2022-02-28 21:37:49 +01:00
Maximilian Bosch
6a8f1b548f
logging.hh: json.hpp -> json_fwd.hpp 2022-02-28 17:27:52 +01:00
Maximilian Bosch
102cb39086
libstore/build: add a few explanatory comments; simplify 2022-02-28 17:27:52 +01:00
Maximilian Bosch
cd92ea5885
libstore/derivation-goal: avoid double-parsing of JSON messages
To avoid that JSON messages are parsed twice in case of
remote builds with `ssh-ng://`, I split up the original
`handleJSONLogMessage` into three parts:

* `parseJSONMessage(const std::string&)` checks if it's a message in the
  form of `@nix {...}` and tries to parse it (and prints an error if the
  parsing fails).
* `handleJSONLogMessage(nlohmann::json&, ...)` reads the fields from the
  message and passes them to the logger.
* `handleJSONLogMessage(const std::string&, ...)` behaves as before, but
  uses the two functions mentioned above as implementation.

In case of `ssh-ng://`-logs the first two methods are invoked manually.
2022-02-28 17:27:52 +01:00
Maximilian Bosch
7a04839ea5
ssh-ng: also store build logs to make them accessible by nix log
Right now when building a derivation remotely via

    $ nix build -j0 -f . hello -L --builders 'ssh://builder'

it's possible later to read through the entire build-log by running
`nix log -f . hello`. This isn't possible however when using `ssh-ng`
rather than `ssh`.

The reason for that is that there are two different ways to transfer
logs in Nix through e.g. an SSH tunnel (that are used by `ssh`/`ssh-ng`
respectively):

* `ssh://` receives its logs from the fd pointing to `builderOut`. This
  is directly passed to the "log-sink" (and to the logger on each `\n`),
  hence `nix log` works here.
* `ssh-ng://` however expects JSON-like messages (i.e. `@nix {log data
  in here}`) and passes it directly to the logger without doing anything
  with the `logSink`. However it's certainly possible to extract
  log-lines from this format as these have their own message-type in the
  JSON payload (i.e. `resBuildLogLine`).

  This is basically what I changed in this patch: if the code-path for
  `builderOut` is not reached and a `logSink` is initialized, the
  message was successfully processed by the JSON logger (i.e. it's in
  the expected format) and the line is of the expected type (i.e.
  `resBuildLogLine`), the line will be written to the log-sink as well.

Closes #5079
2022-02-28 17:27:52 +01:00
Eelco Dolstra
b91500a14e Fix clang warning 2022-02-28 15:48:26 +01:00
Eelco Dolstra
a949673a5b Fix Darwin build
Fixes #6169
2022-02-28 15:48:26 +01:00
Théophane Hufschmitt
c2720797d5
Merge pull request #6072 from Ma27/fix-nix-why-depends-non-precise
nix/why-depends: fix output when not using `--precise`
2022-02-28 11:46:50 +01:00
Eelco Dolstra
df552ff53e Remove std::string alias (for real this time)
Also use std::string_view in a few more places.
2022-02-25 16:13:02 +01:00
Eelco Dolstra
14b38d0887 xml-writer: Remove std aliases 2022-02-25 16:13:02 +01:00
Kevin Amado
b312d4d096
refactor: remove verbose-build from docs
- From what I see it is an implementation detail
  but is no longer configurable from the settings
2022-02-25 09:16:42 -05:00
Eelco Dolstra
9d4697453f ExprAttrs::show(): Show attrs in sorted order
Issue #6160.
2022-02-25 09:21:04 +01:00
Eelco Dolstra
59683733f5
Merge pull request #6089 from edolstra/dot-default
Replace defaultBla.$system with bla.$system.default
2022-02-24 21:16:58 +01:00
Eelco Dolstra
8518cebfce libfetchers: Rename immutable -> locked
This is more consistent with flake terminology.
2022-02-24 18:09:00 +01:00
Théophane Hufschmitt
6524eb4b77
Merge pull request #5342 from Misterio77/add-sourcehut
Add support for sourcehut input scheme
2022-02-24 09:09:21 +01:00
Eelco Dolstra
1a6548ca75 Update docs 2022-02-22 14:32:56 +01:00
Eelco Dolstra
d4428d00ae nix flake check: Warn about deprecated flake outputs 2022-02-22 14:19:39 +01:00
Eelco Dolstra
162fbe31ff Replace defaultBla.$system with bla.$system.default
This also simplifies some InstallableFlake logic and fixes 'nix
bundle' parsing its installable twice.

Fixes #5532.
2022-02-22 11:47:41 +01:00
Eelco Dolstra
caf5172945
Merge pull request #6136 from matthewbauer/profile-upgrade-verbosity
Add verbosity to nix profile upgrade
2022-02-21 22:30:47 +01:00
Eelco Dolstra
8ffb09a08a Fix macOS build 2022-02-21 17:14:22 +01:00
Matthew Bauer
3cd958849b
Apply suggestions from code review
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2022-02-21 10:04:04 -06:00
Eelco Dolstra
36c7b12f33 Remove std::string alias 2022-02-21 16:37:25 +01:00
Eelco Dolstra
1ac2664472 Remove std::vector alias 2022-02-21 16:32:34 +01:00
Eelco Dolstra
fe9afb65bb Remove std::set alias 2022-02-21 16:28:23 +01:00
Eelco Dolstra
afcdc7606c Remove std::list alias 2022-02-21 16:25:12 +01:00
Eelco Dolstra
e2422c4582
Merge pull request #6052 from hercules-ci/issue-3294-fix-interruptCallback-deadlock
Fix deadlocked nix-daemon zombies on darwin #3294
2022-02-21 16:21:45 +01:00
Robert Hensing
ddb6740e7d triggerInterrupt: Refactor to use break 2022-02-21 15:43:43 +01:00
Matthew Bauer
61295b910f Add verbosity to nix profile upgrade
Followup of https://github.com/NixOS/nix/pull/6086. This time adding a
warning if no packages are upgraded.
2022-02-20 23:46:11 -06:00
Martin Schwaighofer
53523c0ab8 git fetcher: set locale for rev-parse 2022-02-19 22:58:23 +01:00
Martin Schwaighofer
9504445cab git fetcher: distinguish errors more precisely 2022-02-19 22:58:23 +01:00
Martin Schwaighofer
c7e527b82b git fetcher: invoke diff instead of diff-index
diff-index operates on the view that git has of the working tree,
which might be outdated. The higher-level diff command does this
automatically. This change also adds handling for submodules.

fixes #4140

Alternative fixes would be invoking update-index before diff-index or
matching more closely what require_clean_work_tree from git-sh-setup.sh
does, but both those options make it more difficult to reason about
correctness.
2022-02-19 22:58:23 +01:00
Martin Schwaighofer
0bfa0cdea1 git fetcher: improve check for valid repository
The .git/refs/heads directory might be empty for a valid
usable git repository. This often happens in CI environments,
which might only fetch commits, not branches.
Therefore instead we let git itself check if HEAD points to
something that looks like a commit.

fixes #5302
2022-02-19 22:58:22 +01:00
Linus Heckemann
dbdc63bc41 path-info: use full store paths when we have them
Fixes #5645
2022-02-19 00:32:05 +01:00
Eelco Dolstra
a768e85e2f
Merge pull request #6103 from Radvendii/welcomeText
add descriptive output when creating templates
2022-02-17 21:06:10 +01:00
Taeer Bar-Yam
f56dd3a36b make flake template welcomeText markdown 2022-02-17 13:59:32 -05:00
Eelco Dolstra
aa5b83d93c InputScheme::fetch(): Return a StorePath instead of a Tree 2022-02-16 11:14:01 +01:00
Eelco Dolstra
2d6d9a28eb addToStoreFromDump(): Take std::string_view 2022-02-16 11:02:35 +01:00
Taeer Bar-Yam
f3a2940e70 add descriptive output when creating templates
this includes a `welcomeText` attribute which can be set in the
template, as well as outputing which files were created.
2022-02-15 11:50:14 -05:00
Gabriel Fontes
72e8f94081
add sourcehut input scheme 2022-02-14 23:53:01 -03:00
Eelco Dolstra
023e459777 InstallableFlake: Default attr paths cleanup
This removes some duplicated logic, and fixes "nix bundle" parsing its
installable twice.
2022-02-14 21:06:11 +01:00
Sebastian Ullrich
c437e1326d Fix using sandbox without user namespaces 2022-02-12 16:28:36 +01:00
Eelco Dolstra
4d67ecbbb2
Merge pull request #6085 from edolstra/fix-flake-defaults
parseInstallables(): Don't try the flake attr path prefixes when no fragment is specified
2022-02-11 18:00:00 +01:00
Tom Bereknyei
270fb5f192 profile: add verbosity
warn if there are no matches and give notice of removing packages as
they are found
2022-02-11 10:44:33 -05:00
Eelco Dolstra
cdc90c2776 parseInstallables(): Don't try the flake attr path prefixes when no fragment is specified
Fixes #5880.
2022-02-11 15:50:12 +01:00
Maximilian Bosch
5b586575ac
nix/why-depends: fix output when not using --precise
On Nix 2.6 the output of `nix why-depends --all` seems to be somewhat
off:

    $ nix why-depends /nix/store/kn47hayxab8gc01jhr98dwyywbx561aq-nixos-system-roflmayr-21.11.20220207.6c202a9.drv /nix/store/srn5jbs1q30jpybdmxqrwskyny659qgc-nix-2.6.drv --derivation  --extra-experimental-features nix-command  --all
    /nix/store/kn47hayxab8gc01jhr98dwyywbx561aq-nixos-system-roflmayr-21.11.20220207.6c202a9.drv
        └───/nix/store/g8bpgfjhh5vxrdq0w6r6s64f9kkm9z6c-etc.drv
        │   └───/nix/store/hm0jmhp8shbf3cl846a685nv4f5cp3fy-nspawn-inst.drv
        | [...]
            └───/nix/store/2d6q3ygiim9ijl5d4h0qqx6vnjgxywyr-system-units.drv
                └───/nix/store/dil014y1b8qyjhhhf5fpaah5fzdf0bzs-unit-systemd-nspawn-hydra.service.drv
                    └───/nix/store/a9r72wwx8qrxyp7hjydyg0gsrwnn26zb-activate.drv
                        └───/nix/store/99hlc7i4gl77wq087lbhag4hkf3kvssj-nixos-system-hydra-21.11pre-git.drv

Please note that `[...]-system-units.drv` is supposed to be a direct
child of `[...]-etc.drv`.

The reason for that is that each new level printed by `printNode` is
four spaces off in comparison to `nix why-depends --precise` because the
recursive `printNode()` only prints the path and not the `tree*`-chars in
the case of `--precise` and in this format the path is four spaces further
indented, i.e. on a newline, but on the same level as the path's children, i.e.

    /nix/store/kn47hayxab8gc01jhr98dwyywbx561aq-nixos-system-roflmayr-21.11.20220207.6c202a9.drv
    └───/: …1-p8.drv",["out"]),("/nix/store/g8bpgfjhh5vxrdq0w6r6s64f9kkm9z6c-etc.drv",["out"]),("/nix/store/…
        → /nix/store/g8bpgfjhh5vxrdq0w6r6s64f9kkm9z6c-etc.drv

As you can see `[...]-etc.drv` is a direct child of the root, but four
spaces indented. This logic was directly applied to the code-path with
`precise=false` which resulted in `tree*` being printed four spaces too
deep.

In case of no `--precise`, `hits[hash]` is empty and the path itself
should be printed rather than hits using the same logic as for `hits[hash]`.

With this fix, the output looks correct now:

    /nix/store/kn47hayxab8gc01jhr98dwyywbx561aq-nixos-system-roflmayr-21.11.20220207.6c202a9.drv
    └───/nix/store/g8bpgfjhh5vxrdq0w6r6s64f9kkm9z6c-etc.drv
        ├───/nix/store/hm0jmhp8shbf3cl846a685nv4f5cp3fy-nspawn-inst.drv
        | [...]
        └───/nix/store/2d6q3ygiim9ijl5d4h0qqx6vnjgxywyr-system-units.drv
            └───/nix/store/dil014y1b8qyjhhhf5fpaah5fzdf0bzs-unit-systemd-nspawn-hydra.service.drv
                └───/nix/store/a9r72wwx8qrxyp7hjydyg0gsrwnn26zb-activate.drv
                    └───/nix/store/99hlc7i4gl77wq087lbhag4hkf3kvssj-nixos-system-hydra-21.11pre-git.drv
2022-02-10 14:26:00 +01:00
Eelco Dolstra
7c64a9dfd4
Merge pull request #6054 from lincolnauster/lf-reporterr
repl/load-flake: throw error if path isn't specified
2022-02-07 20:44:10 +01:00
Sergei Trofimovich
3ec02deb20 Make sure no exceptions leave ignoreException()
I noticed that occasional Ctrl-C leaves *.lock files around.
`nix-daemon`'s journal logs contained crashes like:

    nix-daemon[30416]: terminate called after throwing an instance of 'nix::SysError'
    nix-daemon[30416]:   what():  error: writing to file: Broken pipe

And core dump backtraces pointed at `teriminate()` call from
destructors:

    ...
    _Unwind_Resume ()
    nix::ignoreException() ()
    nix::LocalDerivationGoal::~LocalDerivationGoal()
    ...

    void ignoreException()
    {
        try {
            throw;
        } catch (std::exception & e) {
            printError("error (ignored): %1%", e.what());
        }
    }

The crashes happen when client side closes early and printError() throws
an IO error.

The change wraps `ignoreException()` into blanket `try { ... } catch (...) {}`.

Closes: https://github.com/NixOS/nix/issues/6046
2022-02-07 16:20:56 +00:00
lincoln auster
b1abfcd0c2
fix markup
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2022-02-07 08:35:50 -07:00
Eelco Dolstra
97e02c23bd Fix 'basic_string::_M_construct null not valid' in interrupted download
Fixes #5985.
2022-02-07 10:53:47 +01:00
lincoln auster [they/them]
c23501a3b2 repl/load-flake: throw error if path isn't specified 2022-02-06 16:29:42 -07:00
Robert Hensing
c3b942e0fc Don't hold interruptCallbacks lock during interrupt handling
This changes the representation of the interrupt callback list to
be safe to use during interrupt handling.

Holding a lock while executing arbitrary functions is something to
avoid in general, because of the risk of deadlock.

Such a deadlock occurs in https://github.com/NixOS/nix/issues/3294
where ~CurlDownloader tries to deregister its interrupt callback.

This happens during what seems to be a triggerInterrupt() by the
daemon connection's MonitorFdHup thread. This bit I can not confirm
based on the stack trace though; it's based on reading the code,
so no absolute certainty, but a smoking gun nonetheless.
2022-02-06 13:53:28 +01:00
Eelco Dolstra
4369771870
Merge pull request #6040 from matthewbauer/allow-missing-override-input
Allow missing flake.nix for --override-input target
2022-02-06 13:22:41 +01:00
Eelco Dolstra
3b64569601
Merge pull request #6047 from SuperSandro2000/nix-shell-BASH
nix-shell: set BASH variable to correct shell
2022-02-06 13:19:52 +01:00
Eelco Dolstra
93293fc66b
Merge pull request #6042 from pennae/fix-repl-a
fix nix repl not overriding existing bindings in :a
2022-02-06 13:17:58 +01:00
Sandro Jäckel
45eeb2fd6a
nix-shell: set BASH variable to correct shell 2022-02-05 17:56:51 +01:00
pennae
1daf1babf9 fix nix repl not overriding existing bindings in :a
previously :a would override old bindings of a name with new values if the added
set contained names that were already bound. in nix 2.6 this doesn't happen any
more, which is potentially confusing.

fixes #6041
2022-02-04 15:27:59 +01:00
Matthew Bauer
f222fba4dc Allow missing flake.nix for --override-input target
At this point, we don’t know if the input is a flake or not. So, we
should allow the user to override the input with a directory without a
flake.nix.

Ideally, we could figure whether the input was originally a flake or
not, but that would require instantiating the whole flake. So just
allow it to be missing here, and rely on checks later on to verify the
input for us.
2022-02-03 20:51:47 -06:00
Eelco Dolstra
bd383d1b6f Make most calls to determinePos() lazy 2022-02-04 00:33:21 +01:00
Eelco Dolstra
4c755c3b3f Merge branch 'issue-3505' of https://github.com/kamadorueda/nix 2022-02-04 00:33:13 +01:00
tomberek
12ff354d01
Merge branch 'master' into bundler_drv 2022-02-03 02:39:18 -05:00