Commit graph

1452 commits

Author SHA1 Message Date
Eelco Dolstra 420957e149 Move flakes tests to a subdirectory 2022-07-13 15:06:54 +02:00
Eelco Dolstra e1153069bd
Merge pull request #6797 from edolstra/overrides-check
Simplify the check for overrides on non-existent inputs
2022-07-13 14:45:07 +02:00
Eelco Dolstra 19190c2346 tests/flakes.sh: Make sure flake7 is clean
Cherry-picked from the lazy-trees branch, where we no longer write a
lock file if any of the inputs is dirty.
2022-07-13 13:46:33 +02:00
Eelco Dolstra 12df8885cc Simplify the check for overrides on non-existent inputs 2022-07-13 13:40:40 +02:00
Théophane Hufschmitt b052e7e71d Add some more completion tests
- Test another command than `build`
- Test with two input flakes
2022-07-13 10:31:17 +02:00
Théophane Hufschmitt d34a333e2e Fix the “out of order” completion test
`--override-input` id snarky because it takes two arguments, so it
doesn't play well when completed in the middle of the CLI (since the
argument just after gets interpreted as its second argument). So use
`--update-input` instead
2022-07-13 10:25:28 +02:00
Maximilian Bosch 411111a3bc
Turn error for non-existant follows into a warning 2022-07-12 11:22:35 +02:00
Maximilian Bosch c1c37f3200
flakes: throw an error if follows-declaration for an input is invalid
I recently got fairly confused why the following expression didn't have
any effect

    {
      description = "Foobar";
      inputs.sops-nix = {
        url = github:mic92/sops-nix;
        inputs.nixpkgs_22_05.follows = "nixpkgs";
      };
    }

until I found out that the input was called `nixpkgs-22_05` (please note
the dash vs. underscore).

IMHO it's not a good idea to not throw an error in that case and
probably leave end-users rather confused, so I implemented a small check
for that which basically checks whether `follows`-declaration from
overrides actually have corresponding inputs in the transitive flake.

In fact this was done by accident already in our own test-suite where
the removal of a `follows` was apparently forgotten[1].

Since the key of the `std::map` that holds the `overrides` is a vector
and we have to find the last element of each vector (i.e. the override)
this has to be done with a for loop in O(n) complexity with `n` being
the total amount of overrides (which shouldn't be that large though).

Please note that this doesn't work with nested expressions, i.e.

    inputs.fenix.inputs.nixpkgs.follows = "...";

which is a known problem[2].

For the expression demonstrated above, an error like this will be
thrown:

    error: sops-nix has a `follows'-declaration for a non-existant input nixpkgs_22_05!

[1] 2664a216e5
[2] https://github.com/NixOS/nix/issues/5790
2022-07-12 10:18:38 +02:00
Théophane Hufschmitt 21c443d4fd Test the tilde expansion for the flake completion
Also add a disabled test for when the `--override-input` flag comes
*before* the flake ref
2022-07-12 09:48:25 +02:00
Théophane Hufschmitt 07e14d3ef0 Harden the comparisons in the completion test
- Don't use `printf` for the expected result, but just use bash's `$' '`
  litteral strings
- Quote the `nix` call result
- Invert the order in the comparisons (just because it feels more
  natural)
2022-07-12 09:24:31 +02:00
Théophane Hufschmitt 260fb837de Fix the name of the completions test 2022-07-12 09:24:31 +02:00
Théophane Hufschmitt 32effccb51 Add some tests for the CLI completion 2022-07-12 09:24:31 +02:00
Gytis Ivaskevicius ba1fe85b65 Add builtins.traceVerbose
Co-Authored-By: Silvan Mosberger <contact@infinisil.com>

Add builtins.traceVerbose tests
2022-07-05 19:44:26 +03:00
Théophane Hufschmitt d63cd77549
Merge pull request #6664 from Ma27/innixshell-backwards-compat
nix-shell: restore backwards-compat with old nixpkgs
2022-07-05 15:57:20 +02:00
Théophane Hufschmitt b7eb4ac169
Merge pull request #6699 from tennox/better-flake-new-error-message
flakes: apply templates partially on conflicts
2022-06-29 18:21:07 +02:00
Théophane Hufschmitt 4c8210095e
Merge pull request #6233 from flox/nix-repl-flakes
Nix repl flakes
2022-06-29 17:59:22 +02:00
Théophane Hufschmitt 83f96e61a4 Add some test for nix flake init with conflicts 2022-06-29 17:08:03 +02:00
Eelco Dolstra 49c4a37efc
Merge pull request #6717 from edolstra/move-flake-registry
Fetch flake-registry.json from channels.nixos.org
2022-06-25 21:17:57 +02:00
Tom Bereknyei f801d70ba7 tests: enable ca-derivations for simple.nix in repl tests 2022-06-24 11:17:29 -04:00
Théophane Hufschmitt f06b6fa4fa
Merge pull request #6698 from tweag/forbid-tilde-paths-in-pure-mode
Forbid the tilde expansion in pure eval mode
2022-06-24 10:02:40 +02:00
Eelco Dolstra 4b6cc3da62 Fetch flake-registry.json from channels.nixos.org
Using fastly is slightly faster, provides some resilience due to a
high stale TTL, and allows some usage metrics.
2022-06-23 23:56:26 +02:00
Eelco Dolstra 8bbbb6e737 Enable/fix tests in nix-static
pkgsStatic is apparently considered a cross environment, so checkPhase
and installCheckPhase are disabled even when we ask for them.
2022-06-22 23:33:15 +02:00
Maximilian Bosch e94aa1f647
tests/nix-shell: more meaningful testcase 2022-06-22 22:35:48 +02:00
Théophane Hufschmitt 983efdbde4 Forbid the tilde expansion in pure eval mode
Fix #6684
2022-06-21 14:08:18 +02:00
Fishhh df21173b70
Add another test for --exclude in nix search 2022-06-20 19:21:45 +02:00
Tom Bereknyei 51268ceb79 Merge branch 'master' into nix-repl-flakes 2022-06-15 09:17:03 -04:00
Maximilian Bosch 98946e2d9c
nix-shell: restore backwards-compat with old nixpkgs
Basically an attempt to resume fixing #5543 for a breakage introduced
earlier[1]. Basically, when evaluating an older `nixpkgs` with
`nix-shell` the following error occurs:

    λ ma27 [~] → nix-shell -I nixpkgs=channel:nixos-18.03 -p nix
    error: anonymous function at /nix/store/zakqwc529rb6xcj8pwixjsxscvlx9fbi-source/pkgs/top-level/default.nix:20:1 called with unexpected argument 'inNixShell'

           at /nix/store/zakqwc529rb6xcj8pwixjsxscvlx9fbi-source/pkgs/top-level/impure.nix:82:1:

               81|
               82| import ./. (builtins.removeAttrs args [ "system" "platform" ] // {
                 | ^
               83|   inherit config overlays crossSystem;

This is a problem because one of the main selling points of Nix is that
you can evaluate any old Nix expression and still get the same result
(which also means that it *still evaluates*). In fact we're deprecating,
but not removing a lot of stuff for that reason such as unquoted URLs[2]
or `builtins.toPath`. However this property was essentially thrown away
here.

The change is rather simple: check if `inNixShell` is specified in the
formals of an auto-called function. This means that

    { inNixShell ? false }:
    builtins.trace inNixShell
      (with import <nixpkgs> { }; makeShell { name = "foo"; })

will show `trace: true` while

    args@{ ... }:
    builtins.trace args.inNixShell
      (with import <nixpkgs> { }; makeShell { name = "foo"; })

will throw the following error:

    error: attribute 'inNixShell' missing

This is explicitly needed because the function in
`pkgs/top-level/impure.nix` of e.g. NixOS 18.03 has an ellipsis[3], but
passes the attribute-set on to another lambda with formals that doesn't
have an ellipsis anymore (hence the error from above). This was perhaps
a mistake, but we can't fix it anymore. This also means that there's
AFAICS no proper way to check if the attr-set that's passed to the Nix
code via `EvalState::autoCallFunction` is eventually passed to a lambda
with formals where `inNixShell` is missing.

However, this fix comes with a certain price. Essentially every
`shell.nix` that assumes `inNixShell` to be passed to the formals even
without explicitly specifying it would break with this[4]. However I think
that this is ugly, but preferable:

* Nix 2.3 was declared stable by NixOS up until recently (well, it still
  is as long as 21.11 is alive), so most people might not have even
  noticed that feature.

* We're talking about a way shorter time-span with this change being
  in the wild, so the fallout should be smaller IMHO.

[1] 9d612c393a
[2] https://github.com/NixOS/rfcs/pull/45#issuecomment-488232537
[3] https://github.com/NixOS/nixpkgs/blob/release-18.03/pkgs/top-level/impure.nix#L75
[4] See e.g. the second expression in this commit-message or the changes
    for `tests/ca/nix-shell.sh`.
2022-06-13 23:29:28 +02:00
Eelco Dolstra 798efdf10b
Merge pull request #6027 from Ma27/pure-repl
repl: `--option pure-eval true` actually enables pure eval mode
2022-06-13 16:11:46 +02:00
Gabriel Fontes 9f6b4639c2
fix sourcehut brach/tag resolving regression
nixos/nix#6290 introduced a regex pattern to account for tags when
resolving sourcehut refs. nixos/nix#4638 reafactored the code,
accidentally treating the pattern as a regular string, causing all
non-HEAD ref resolving to break.

This fixes the regression and adds more test cases to avoid future
breakage.
2022-06-11 16:52:20 -03:00
Eelco Dolstra b2dea231cf
Merge pull request #6618 from afishhh/search-exclude
Add `-e`/`--exclude` flag to `nix search`
2022-06-07 19:01:36 +02:00
Fishhh 9ae22b1fde
Use grep -c instead of grep|wc -l in some nix search tests 2022-06-07 18:25:59 +02:00
Fishhh 0338cf5539
Add tests for --exclude flag in nix search 2022-06-07 18:25:52 +02:00
Eelco Dolstra 8977cdee6a
Merge pull request #6598 from cole-h/update-flake-for-real
flake: update to 22.05
2022-06-07 15:13:16 +02:00
Eelco Dolstra 0f8754cd30
Fix 22.05 eval warnings 2022-06-07 14:27:10 +02:00
Tom Bereknyei ffd41d1757 Merge branch 'master' into nix-repl-flakes 2022-06-02 16:58:35 -04:00
Eelco Dolstra 24b3a500a7
Typo 2022-06-02 21:21:10 +02:00
Eelco Dolstra 2868acb4a5
tests/flakes.sh: Fix some ignored breakage 2022-06-02 21:19:16 +02:00
Maximilian Bosch 159b5815b5
repl: --option pure-eval true actually enables pure eval mode
To quote Eelco in #5867:

> Unfortunately we can't do
>
>     evalSettings.pureEval.setDefault(false);
>
> because then we have to do the same in main.cc (where
> pureEval is set to true), and that would allow pure-eval
> to be disabled globally from nix.conf.

Instead, a command should specify that it should be impure by
default. Then, `evalSettings.pureEval` will be set to `false;` unless
it's overridden by e.g. a CLI flag.

In that case it's IMHO OK to be (theoretically) able to override
`pure-eval` via `nix.conf` because it doesn't have an effect on commands
where `forceImpureByDefault` returns `false` (i.e. everything where pure
eval actually matters).

Closes #5867
2022-05-31 22:20:11 +02:00
Cole Helbling dbf0d3a150 tests/nss-preload: move nix-fetch binding 2022-05-31 12:14:34 -07:00
Eelco Dolstra 27ebb97d0a
Handle EOFs in string literals correctly
We can't return a STR token without setting a valid StringToken,
otherwise the parser will crash.

Fixes #6562.
2022-05-25 17:58:13 +02:00
tomberek 8c3939af14
Apply suggestions from code review
Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
2022-05-20 12:09:41 -04:00
Tom Bereknyei 7a04fb1c56 repl: add repl-flake experimental feature for gating 2022-05-20 08:20:00 -04:00
Tom Bereknyei 0053dab43f repl: fix tests to run on any testing store 2022-05-20 08:03:41 -04:00
Théophane Hufschmitt 938150472d Add some tests for the new REPL cli
- Test that without the XP feature things work as before
- Test that with or without the XP feature `--file file` works
- Test that with XP feature passing a flakeref works
- Test `:reload` with a flake
2022-05-20 07:42:06 -04:00
Tony Olagbaiye 5b8c1deb18 fetchTree: Allow fetching plain files
Add a new `file` fetcher type, which will fetch a plain file over
http(s), or from the local file.

Because plain `http(s)://` or `file://` urls can already correspond to
`tarball` inputs (if the path ends-up with a know archive extension),
the URL parsing logic is a bit convuluted in that:

- {http,https,file}:// urls will be interpreted as either a tarball or a
  file input, depending on the extensions of the path part (so
  `https://foo.com/bar` will be a `file` input and
  `https://foo.com/bar.tar.gz` as a `tarball` input)
- `file+{something}://` urls will be interpreted as `file` urls (with
  the `file+` part removed)
- `tarball+{something}://` urls will be interpreted as `tarball` urls (with
  the `tarball+` part removed)

Fix #3785

Co-Authored-By: Tony Olagbaiye <me@fron.io>
2022-05-19 18:24:49 +02:00
Théophane Hufschmitt 78dc64ec1e
Merge pull request #6544 from ncfavier/getFlake-no-write-lock-file
Do not attempt to write a lock file in builtins.getFlake
2022-05-18 16:41:13 +02:00
Naïm Favier 169384abb2
Do not attempt to write a lock file in builtins.getFlake
Fixes https://github.com/NixOS/nix/issues/6541
2022-05-18 15:45:06 +02:00
Eli Kogan-Wang be2b19041e Integrate review changes 2022-05-13 22:02:28 +02:00
Eli Kogan-Wang aefc6c4f41 Add priority for nix profile install 2022-05-11 12:16:35 +02:00
Eelco Dolstra f4102de84b
Merge pull request #6489 from alexshpilkin/fix-6488
nix: Add forgotten null check in AttrCursor::getListOfStrings()
2022-05-05 16:16:56 +02:00
Théophane Hufschmitt 4c5aa8520c Make sure that nix build works in --impure mode
Regression test for <https://github.com/NixOS/nix/issues/6488>
2022-05-05 14:53:59 +02:00
thkoch2001 7388cd55bf Change json example to be original
Closes: #3391
2022-05-05 12:39:23 +03:00
Eelco Dolstra a3c6c5b1c7 nix profile: Support overriding outputs 2022-05-03 15:00:34 +02:00
Eelco Dolstra 4a79cba511 Allow selecting derivation outputs using 'installable!outputs'
E.g. 'nixpkgs#glibc^dev,static' or 'nixpkgs#glibc^*'.
2022-05-03 13:43:52 +02:00
Eelco Dolstra 404c222444
Merge pull request #6426 from edolstra/respect-outputs-to-install
nix: Respect meta.outputsToInstall, and use all outputs by default
2022-05-03 13:43:22 +02:00
Théophane Hufschmitt cae7473884
Merge pull request #6465 from layus/fix-test-crashes
tests: Distinguish crashes from expected failures
2022-05-03 11:11:37 +02:00
Guillaume Maudoux 275f8561eb tests/lang: Distinguish crashes from expected failures 2022-05-02 15:12:50 +02:00
Guillaume Maudoux 4845886bed Revert "tests: Distinguish crashes from expected failures"
This reverts commit 143b73f52d.
2022-05-02 14:22:00 +02:00
Eelco Dolstra a26be9f3b8
Merge pull request #4638 from orbekk/read_head
Resolve reference for remote git repositories (makes fetchGit work with non-'master' branch)
2022-05-02 13:31:30 +02:00
Eelco Dolstra dde71899dd tests: Don't create tests/result
https://hydra.nixos.org/log/lns780srkka4dv7r69mn4zfy6fdij4yr-nix-2.9.0pre20220428_4bb111c.drv
2022-05-02 09:38:51 +02:00
Kjetil Orbekk 05a3fbac5a Test fetchGit with non-'master' remote repo 2022-04-29 18:42:31 -04:00
Kjetil Orbekk 401e60f289 Resolve reference for remote repository
Resolves the HEAD reference from the remote repository instead
of assuming "master".
2022-04-29 18:42:28 -04:00
Guillaume Maudoux 143b73f52d tests: Distinguish crashes from expected failures 2022-04-29 11:14:08 +02:00
Eelco Dolstra 4a9623b129 Fix passing $OUT_PATHS to the post-build hook
Fixes #6446.
2022-04-28 13:36:01 +02:00
Eelco Dolstra 6e0a2b971b Add a test for outputsToInstall 2022-04-26 17:17:27 +02:00
Eelco Dolstra 1ddabe1a01 nix: Respect meta.outputsToInstall, and use all outputs by default
'nix profile install' will now install all outputs listed in the
package's meta.outputsToInstall attribute, or all outputs if that
attribute doesn't exist. This makes it behave consistently with
nix-env. Fixes #6385.

Furthermore, for consistency, all other 'nix' commands do this as
well. E.g. 'nix build' will build and symlink the outputs in
meta.outputsToInstall, defaulting to all outputs. Previously, it only
built/symlinked the first output. Note that this means that selecting
a specific output using attrpath selection (e.g. 'nix build
nixpkgs#libxml2.dev') no longer works. A subsequent PR will add a way
to specify the desired outputs explicitly.
2022-04-26 17:17:27 +02:00
Théophane Hufschmitt be28603dca Merge remote-tracking branch 'origin/master' into nixbuildaddprintstorepaths 2022-04-22 11:11:01 +02:00
Théophane Hufschmitt c4ffc8e2f8
Merge pull request #6218 from pennae/pos-symbol-tables
reduce the size of Attr from 3 pointers to 2 on 64 bit machines
2022-04-22 10:28:06 +02:00
Théophane Hufschmitt 35ca5fdf91
Merge pull request #6436 from flox/tofile_allow
fix: builtins.toFile adds path to allowedPaths
2022-04-22 08:50:54 +02:00
Tom Bereknyei f25112d383 fix: builtins.toFile adds path to allowedPaths
The produced path is then allowed be imported or utilized elsewhere:
```
assert (43 == import (builtins.toFile "source" "43")); "good"
```

This will still fail on write-only stores.
2022-04-21 16:41:37 -04:00
pennae 6526d1676b replace most Pos objects/ptrs with indexes into a position table
Pos objects are somewhat wasteful as they duplicate the origin file name and
input type for each object. on files that produce more than one Pos when parsed
this a sizeable waste of memory (one pointer per Pos). the same goes for
ptr<Pos> on 64 bit machines: parsing enough source to require 8 bytes to locate
a position would need at least 8GB of input and 64GB of expression memory. it's
not likely that we'll hit that any time soon, so we can use a uint32_t index to
locate positions instead.
2022-04-21 21:46:06 +02:00
Sergei Trofimovich b6e59d7137 tests: remove 'ca-references' feature
The feature was ctabilized in d589a6aa8a.
2022-04-21 10:06:39 +02:00
regnat 74d6782a6a Disable the selfref-gc test when the daemon is too old 2022-04-21 10:06:39 +02:00
Sergei Trofimovich 6ada496311 nix: add (failing) selfreference test for multiple realizations
The test illustrates failure in issue #5320. Here derivation and
it's built input have identical CA sotre path. As a result we generate
extraneout reference to build input:

    $ make installcheck
    ...
    ran test tests/selfref-gc.sh... [PASS]
    ran test tests/ca/selfref-gc.sh... [FAIL]
    ...
        deleting '/tmp/.../tests/ca/selfref-gc/store/iqciq1mpg5hc7p6a52fp2bjxbyc9av0v-selfref-gc'
        deleting '/tmp/...tests/ca/selfref-gc/store/zh0kwpnirw3qbv6dl1ckr1y0kd5aw6ax-selfref-gc.drv'
        error: executing SQLite statement
          'delete from ValidPaths where path = '/tmp/.../tests/ca/selfref-gc/store/fsjq0k146r85lsh01l0icl30rnhv7z72-selfref-gc';':
            constraint failed (in '/tmp/.../tests/ca/selfref-gc/var/nix/db/db.sqlite')
2022-04-21 10:06:39 +02:00
Artturin 51cfea8bb0 nix build: add --print-out-paths flag
has the same functionality as default nix-build

$ nix-build . -A "bash" -A "bash.dev" -A "tinycc"
/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12
/nix/store/c49i1ggnr5cc8gxmk9xm0cn961z104dn-bash-5.1-p12-dev
/nix/store/dbapb08862ajgaax3621fz8hly9fdah3-tcc-0.9.27+date=2022-01-11

$ nix-build . -A "bash"
/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12

$ $HOME/nixgits/nix/result/bin/nix build "nixpkgs#bash" "nixpkgs#bash.dev" "nixpkgs#tinycc" --print-out-paths
/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12
/nix/store/c49i1ggnr5cc8gxmk9xm0cn961z104dn-bash-5.1-p12-dev
/nix/store/dbapb08862ajgaax3621fz8hly9fdah3-tcc-0.9.27+date=2022-01-11

$ $HOME/nixgits/nix/result/bin/nix build "nixpkgs#bash" --print-out-paths
/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12
2022-04-20 19:35:46 +03:00
mei (ckie) 0e2b01b14e
nix repl: make symlinks with the :bl command
Requested by ppepino on the Matrix:
https://matrix.to/#/!KqkRjyTEzAGRiZFBYT:nixos.org/$Tb32BS3rVE2BSULAX4sPm0h6CDewX2hClOTGzTC7gwM?via=nixos.org&via=matrix.org&via=nixos.dev

This adds a new command, :bl, which works like :b but also creates
a GC root symlink to the various derivation outputs.

ckie@cookiemonster ~/git/nix -> ./outputs/out/bin/nix repl
Welcome to Nix 2.6.0. Type :? for help.

nix-repl> :l <nixpkgs>
Added 16118 variables.

nix-repl> :b runCommand "hello" {} "echo hi > $out"

This derivation produced the following outputs:
  ./repl-result-out -> /nix/store/kidqq2acdpi05c4a9mlbg2baikmzik44-hello
[1 built, 0.0 MiB DL]
ckie@cookiemonster ~/git/nix -> cat ./repl-result-out
hi
2022-04-20 00:20:29 +03:00
Eelco Dolstra a3c843e635 Fix 'nix fmt' test 2022-04-19 21:47:13 +02:00
Eelco Dolstra c9e58aa5ff Require formatters to be packages
Because of 9b41239d8f, a formatter can
no longer be a package *or* an app. So let's require it to be a
package for now.
2022-04-19 20:48:13 +02:00
Eelco Dolstra 48a467f2b9 Merge branch 'issue-6075' of https://github.com/kamadorueda/nix 2022-04-19 20:21:32 +02:00
Eelco Dolstra 2016b7142a Fix compilation, style fixes 2022-04-19 13:41:32 +02:00
Eelco Dolstra b529a41814 Merge branch 'make-flake-show-more-lenient-on-apps' of https://github.com/flox/nix 2022-04-19 13:41:24 +02:00
Tom Bereknyei 9b41239d8f fix: ensure apps are apps and packages are packages 2022-04-14 23:57:52 -04:00
Daniel Pauls 38125a47ab Test fetchMercurial with path containing a . segment 2022-04-09 23:39:00 +02:00
Théophane Hufschmitt 305d3a0ec3 Test fetchgit with path containing a . segment 2022-04-07 17:31:12 +02:00
Eelco Dolstra 589f6f267b fetchClosure: Don't allow URL query parameters
Allowing this is a potential security hole, since it allows the user
to specify parameters like 'local-nar-cache'.
2022-04-06 11:52:51 +02:00
Théophane Hufschmitt 5abe3f4aa6 Allow welcomeText when checking a flake template
Fix https://github.com/NixOS/nix/issues/6321
2022-04-05 11:03:43 +02:00
Eelco Dolstra fdfe737867 Fix handling of outputHash when outputHashAlgo is not specified
https://hydra.nixos.org/build/171351131
2022-04-01 12:40:49 +02:00
Eelco Dolstra 6377442c98 tests/impure-derivations.sh: Ensure that inputAddressed build fails 2022-03-31 17:38:15 +02:00
Eelco Dolstra 7537097284 Provide default values for outputHashAlgo and outputHashMode 2022-03-31 16:56:44 +02:00
Eelco Dolstra 162beb2595 Fix test 2022-03-31 13:43:20 +02:00
Eelco Dolstra b2ae922747 tests/impure-derivations.sh: Restart daemon 2022-03-31 13:43:20 +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
Théophane Hufschmitt 8dee15cd31 Don’t create a file in the worktree in the fetchPath test 2022-03-30 11:42:47 +02:00
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 187dc080a2 tests/build.sh: Test that 'nix build' only prints wanted outputs 2022-03-24 23:36:14 +01:00
Maximilian Bosch d02e34ef06
Implement regression test for empty logs loaded via nix log 2022-03-24 22:31:52 +01:00
Eelco Dolstra f902f3c2cb Add experimental feature 'fetch-closure' 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 a0259a21a4 Don't hide repeated values while generating manifest.nix
Fixes #6243.
2022-03-22 13:18:56 +01:00