Commit Graph

669 Commits

Author SHA1 Message Date
Silvan Mosberger
ed892915b8 tests.nixpkgs-check-by-name: LineIndex functionality, semantics, tests
- `fromlinecolumn` is added to be almost the reverse of `line`.
  This is needed in the future to get from `builtins.unsafeGetAttrPos`
  locations to the index for rnix
- Previously the semantics for newline indices were not really defined,
  now they are, and make more sense.
- Now there's a unit test for these functions
2024-01-30 21:19:05 +01:00
annalee
9e5b7b2ceb
treewide: drop LLVM10 2024-01-30 06:30:28 +00:00
a-n-n-a-l-e-e
425588f207
Merge pull request #283551 from a-n-n-a-l-e-e/llvmPackages_8-drop
treewide: drop LLVM8
2024-01-29 22:25:38 -08:00
github-actions[bot]
b0233d387c
Merge master into haskell-updates 2024-01-30 00:12:10 +00:00
Silvan Mosberger
142922295d check-by-name: Don't use -I in shebang
Original commit from https://github.com/NixOS/nixpkgs/pull/282226,
message:

Running CI locally is broken becauses the `-I` argument:

- Clobbers $NIX_PATH
- Is wrong for two reasons:
  - Has too many `..` elements, relative to the script's location
  - Isn't relative to the script's location (as with *.nix files),
    since shell scripts and POSIX in general interpret paths
    relative to the current working directory, not the canonical
    path of argv[0]
- Is inconsistent, since this script has symlinks pointing at it
  from different depths in the repository

There is no way to set this flag statically in a way that will work
everywhere.  The caller needs to use $NIX_PATH, or the script needs
to take the `-I` value as an argument.

This commit deletes the static `-I` flag.
2024-01-29 13:39:26 +01:00
Silvan Mosberger
9c149d289e check-by-name: Update pinned tooling
Includes https://github.com/NixOS/nixpkgs/pull/283017
2024-01-29 13:38:55 +01:00
github-actions[bot]
bc838f6bd7
Merge master into haskell-updates 2024-01-28 00:13:47 +00:00
Vincenzo Mantova
253025b370 texlive: 2022-final -> 2023.20240114
Co-authored-by: apfelkuchen06 <apfelkuchen@hrnz.li>
2024-01-27 09:32:22 +00:00
apfelkuchen06
2e2b6d13e2 tests/texlive: add a context test
Since context now uses the luametatex engine, which is not distributed with
texlive, the probability of breaking it when updating increases. Let's add a
simple test just in case.

Co-authored-by: Vincenzo Mantova <1962985+xworld21@users.noreply.github.com>
2024-01-27 09:32:20 +00:00
github-actions[bot]
acd0181532
Merge master into haskell-updates 2024-01-26 00:12:48 +00:00
annalee
7a0dc7c7e8
treewide: drop LLVM8 2024-01-25 12:24:51 +00:00
Sergei Trofimovich
9b5c93da36 tests.cross.sanity: fix eval by fixing qt5.qutebrowser reference
Without the change the eval fails as:

    $ nix build --no-link -f. tests.cross.sanity

       error: attribute 'qutebrowser' missing

       at pkgs/test/cross/default.nix:157:5:

          156|     # Two web browsers -- exercises almost the entire packageset
          157|     pkgs.pkgsCross.aarch64-multiplatform.qt5.qutebrowser
             |     ^
          158|     pkgs.pkgsCross.aarch64-multiplatform.firefox
2024-01-25 10:51:29 +00:00
github-actions[bot]
395b0f9a10
Merge master into haskell-updates 2024-01-25 00:13:22 +00:00
Weijia Wang
cdb02f1ec6
Merge pull request #283598 from Artturin/fixerr1
tests.cc-wrapper: fix error
2024-01-25 00:19:51 +01:00
Artturin
1d1d938bf0 tests.cc-wrapper: fix error
`error: llvmPackages_{6,7} has been removed from nixpkgs`
2024-01-24 22:50:16 +02:00
Silvan Mosberger
553b1ab654 tests.nixpkgs-check-by-name: Don't enforce for fixed evals
Stops enforcing that packages whose evaluation gets fixed have to be
moved to `pkgs/by-name`.

This didn't really cause problems before, but I don't think it's great
behavior, and now that NonApplicable is a thing, we can easily make this
work, whereas before it would've been a larger change.
2024-01-22 23:16:46 +01:00
Silvan Mosberger
4245e618e7 tests.nixpkgs-check-by-name: Introduce a non-applicable ratchet state
Introduces NonApplicable as a state of a ratchet, to be used when the
ratchet doesn't make sense to have.

This fixes an odd problem where before, changing an attribute to use
e.g. `callPackage` suddenly requires moving it to `pkgs/by-name`, when that
shouldn't have been required.
2024-01-22 23:13:58 +01:00
Silvan Mosberger
5e173ab0f4 tests.nixpkgs-check-by-name: Minorly more minimal test files 2024-01-22 22:58:33 +01:00
Silvan Mosberger
a48038d309 tests.nixpkgs-check-by-name: Minor code improvements
- Renames EmptyNonAutoCalled to ManualDefinition and add some docs to
  better explain what it's for
- Don't conflate the Ratchet type with the Context type, keep them
  apart, making the code a bit cleaner, but also allows adding
  additional context for a Tight ratchet in the future
- Change the signature of to_nixpkgs_problem to align with the other
  ratchet function signatures
2024-01-22 22:56:21 +01:00
github-actions[bot]
fc9b80e7a3
Merge master into haskell-updates 2024-01-20 00:12:49 +00:00
Silvan Mosberger
bfe48c9a44 check-by-name: Update pinned tooling
Includes https://github.com/NixOS/nixpkgs/pull/275539
2024-01-18 18:42:03 +01:00
Silvan Mosberger
0259a8b94d nixpkgs-check-by-name/scripts: Use local Nixpkgs for dependencies
Especially needed because NIX_PATH is set to something custom in the
nix-shell of nixpkgs-check-by-name
2024-01-18 18:41:27 +01:00
github-actions[bot]
393ca0ec36
Merge master into haskell-updates 2024-01-18 00:13:11 +00:00
Silvan Mosberger
a64d9bf4fd
Merge pull request #278687 from keanuk/check-by-name-multiple-failures
nixpkgs-check-by-name test that fails multiple validity checks
2024-01-17 21:39:37 +01:00
Silvan Mosberger
800a6d3031
Merge pull request #281399 from tweag/by-name-minor-improvements
tests.nixpkgs-check-by-name: Minor improvements
2024-01-17 21:36:27 +01:00
Silvan Mosberger
1516b35afa check-by-name: Remove legacy CI script
See the removed comment for why it can be removed now
2024-01-17 21:26:39 +01:00
Silvan Mosberger
8cf3cd91b2 check-by-name: Update contributor docs
Now that the tooling is pinned instead of being fetched indirectly from
the channel, the docs need some updating
2024-01-17 21:26:39 +01:00
Silvan Mosberger
9997190a61
Merge pull request #281407 from tweag/by-name-local-run-platforms
check-by-name/run-local.sh: Make it usable for non-CI platforms
2024-01-17 21:21:12 +01:00
Silvan Mosberger
30af0cdab6 tests.nixpkgs-check-by-name: Test non-Nix invalid symlinks instead
Nix symlinks that are invalid don't pass the new CI check from
https://github.com/NixOS/nixpkgs/pull/279892, so let's instead use
non-Nix symlinks.
2024-01-17 15:50:24 +01:00
Silvan Mosberger
cf90aa9a86 tests.nixpkgs-check-by-name: Don't test invalid Nix files
Since https://github.com/NixOS/nixpkgs/pull/279892, there's a separate
check that makes sure all changed Nix files evaluate. To not trigger
that, we need to remove all invalid Nix expressions from the tests.
2024-01-17 15:50:21 +01:00
Silvan Mosberger
aba7e02e1c tests.nixpkgs-check-by-name: Minor README.md update 2024-01-17 11:10:54 +01:00
Keanu Kerr
28c4666e8b tests.nixpkgs-check-by-name: added test that fails multiple validity checks 2024-01-17 11:10:28 +01:00
Silvan Mosberger
9da57b5bd3 check-by-name/run-local.sh: Make it usable for non-CI platforms
Since https://github.com/NixOS/nixpkgs/pull/281374, the
nixpkgs-check-by-name tooling is pinned to a specific /nix/store path to
avoid having to evaluate Nixpkgs in CI.

The same path is used for local runs, but that doesn't actually work
when you're trying to run it on a platform different from CI.

This commit makes it work by being clearer about platforms and making
local runs check out the correct Nixpkgs to evaluate the tool from.
2024-01-17 10:45:23 +01:00
Silvan Mosberger
2dd7f0e8b9 tests.nixpkgs-check-by-name: Use NIX_PATH for extra test files
This avoids the need for a bunch of Rust code, but also enables us to
fairly easily make all the Nixpkgs tests evaluatable within the
nix-shell
2024-01-17 10:43:12 +01:00
Silvan Mosberger
64ad8b6836 tests.nixpkgs-check-by-name: Limit source files
To prevent more rebuilds than necessary
2024-01-17 10:40:03 +01:00
Silvan Mosberger
a48d8eafc6
Merge pull request #281390 from tweag/by-name-alias-fix
tests.nixpkgs-check-by-name: Fix for aliases to packages in `pkgs/by-name` and better testing
2024-01-17 10:37:42 +01:00
github-actions[bot]
a197d50282
Merge master into haskell-updates 2024-01-17 00:13:05 +00:00
Silvan Mosberger
6d5f575fd0 check-by-name: Remove legacy script
fetch-tool.sh was decommissioned in
https://github.com/NixOS/nixpkgs/pull/281374, see the removed comment
for why it can only be removed now
2024-01-16 21:50:34 +01:00
Silvan Mosberger
0f27917d9a tests.nixpkgs-check-by-name: Don't error for pkgs/by-name aliases
This was an oversight in https://github.com/NixOS/nixpkgs/pull/275539
not accounted for, which would've failed in CI
2024-01-16 21:18:37 +01:00
Silvan Mosberger
3ebd239cd5 tests.nixpkgs-check-by-name: Test on the current Nixpkgs
This test actually fails right now
2024-01-16 21:15:42 +01:00
Silvan Mosberger
91b754edff tests.nixpkgs-check-by-name: Minor Nix build refactor 2024-01-16 21:15:40 +01:00
Silvan Mosberger
cc422e321e workflows/check-by-name: Pin nixpkgs-check-by-name tool
Before this, the tool for CI would update when nixos-unstable updated,
which is kind of terrible because you don't know when it happens, and it
might break master.

In fact, the tooling _right now_ has a serious bug and shouldn't be used!

This PR addresses this by _pinning_ the tooling in Nixpkgs itself.

Updating the tooling now requires two PRs:
- The first PR to update the tooling source
- (wait for Hydra to build and publish it in nixos-unstable)
- The second PR to update the pinned tooling

In turn you know exactly when the changes are going to take effect.

This change however has additional benefits:
- It makes CI more reproducible, because it doesn't depend on the state
  of nixos-unstable anymore
- Updates to the tooling can be tested with the workflow itself,
  because PRs that update the pinned tool will be tested on the updated
  version
- CI gets a sizable speed boost, because there's no need to download and
  evaluate a channel anymore
- It makes it more realistic to move the source of the tool into a
  separate repository
- It removes the brittle branch-specific logic that was previously
  needed to ensure that release branches use their own version of the
  tooling.
2024-01-16 19:58:19 +01:00
Doron Behar
3b6e224d12 tests.buildFHSEnv.libtinfo: fix by using overriden ncurses 2024-01-16 10:19:46 +02:00
github-actions[bot]
e0c9a6db2a
Merge master into haskell-updates 2024-01-16 00:13:07 +00:00
Silvan Mosberger
f61d02708f
Merge pull request #275539 from tweag/by-name-enforce
[RFC 140 2a] `pkgs/by-name`: Enforce for new packages
2024-01-15 23:10:18 +01:00
Silvan Mosberger
aa7dd0b596 tests.nixpkgs-check-by-name: Improve lib path handling in tests
nix-build failed because the tests assume to run in a CWD equal to the
project root, which is not the case in the derivation build.

This commit fixes it by not using hacky `..` references to paths,
and instead uses NIX_PATH for all implicit Nix testing path
dependencies.

Also the root of the `lib` path gets passed in from the `default.nix`
file, so all the relative path handling is done by Nix during evaluation
already, and in the Nix store when possible.
2024-01-15 18:34:16 +01:00
Dennis Gosnell
9cc4b19ee6
tests.haskell.shellFor: change from using linear to cereal
The current version of linear (1.22) has incorrect constraints in its
cabal file (which has been corrected in a revision), so it is causing
this test to fail.

This commit just switches to another arbitrary package (cereal) for the
tests.
2024-01-15 18:25:53 +09:00
Someone Serge
875e43dfd7
cudaPackages.cuda{,-library}-samples: move to cuda-modules/
cudaPackages are part of the package set and should not depend on pkgs/test
2024-01-12 20:24:50 +00:00
Someone Serge
27b277b63c
tests.cuda: inherit the ready cudaPackages_XX.cuda-samples
...fixing the broken eval
2024-01-12 20:24:50 +00:00
K900
e7b611e59d Merge remote-tracking branch 'origin/master' into staging-next 2024-01-12 13:59:54 +03:00
K900
8ef54ae956 pkgs/release: don't interpolate store paths unnecessarily
Avoids Nix 2.19 screaming about a path named ".version", also avoids creating
store paths of random subsets of nixpkgs.
2024-01-12 10:27:19 +03:00
Weijia Wang
2f9e98ccf3 Merge branch 'master' into staging-next 2024-01-10 23:12:44 +01:00
Weijia Wang
0373b68de5
Merge pull request #279581 from trofi/clang6Stdenv-and-co-removal
clang6Stdenv, clang-tools_6, clang_6, lld_6, lldb_6, llvm_6: remove
2024-01-10 23:11:42 +01:00
Silvan Mosberger
be26d74840 tests.nixpkgs-check-by-name: Add test for alternate callPackage's
Tests that alternate callPackage's don't give an error, so pkgs/by-name
is only required for pkgs.callPackage itself
2024-01-10 19:55:24 +01:00
Silvan Mosberger
d659d5f8ac tests.nixpkgs-check-by-name: Use real lib for tests
This way we can also detect regressions caused by lib
2024-01-10 19:43:17 +01:00
Silvan Mosberger
cbff02834f tests.nixpkgs-check-by-name: Sort the eval validation results
Not that important, but nice.
Also adds a nice test case show-casing the two current ratchet checks at
once.
2024-01-10 19:29:27 +01:00
Silvan Mosberger
57afdc545b tests.nixpkgs-check-by-name: Enforce pkgs/by-name for new packages 2024-01-10 19:29:26 +01:00
Silvan Mosberger
69fc71a82c tests.nixpkgs-check-by-name: Basic info for non-by-name attributes
In a future commit this will be extended
2024-01-10 19:28:19 +01:00
Doron Behar
92a0043ecf tests.buildFHSEnv.libtinfo: init 2024-01-10 08:17:07 +02:00
Doron Behar
d3332be38c tests.buildFHSEnv.liblzma: init
Do so in a generalized manner.
2024-01-10 08:17:07 +02:00
github-actions[bot]
122355be99
Merge master into staging-next 2024-01-10 00:02:18 +00:00
Silvan Mosberger
da3e72b915
Merge pull request #278805 from tweag/by-name-enforce-preparation
check-by-name: Refactor to prepare for enforcing `pkgs/by-name`, make `--base` required
2024-01-09 22:58:53 +01:00
Weijia Wang
927f9393c1 llvmPackages_6: remove
Remove as the last two users are gone.
2024-01-09 22:38:47 +01:00
Robert Hensing
098ffee102
Merge pull request #279487 from bryango/checkpoint-build-polish
checkpointBuildTools: mkCheckpointedBuild -> mkCheckpointBuild
2024-01-09 22:30:22 +01:00
Silvan Mosberger
a1db0cdf9b tests.nixpkgs-check-by-name: .context -> .with_context
Avoids allocation in the non-error case
2024-01-09 19:39:50 +01:00
Silvan Mosberger
4cd2e64db3 tests.nixpkgs-check-by-name: Minor improvements from feedback
- Typo
- Rename AttributeRatchet to ToNixpkgsProblem
- Make the compare trait method into a RatchetState method

Co-Authored-By: Philip Taron <philip.taron@gmail.com>
2024-01-09 19:35:11 +01:00
K900
bff9ee8862 Merge remote-tracking branch 'origin/master' into staging-next 2024-01-09 13:03:34 +03:00
Silvan Mosberger
d79d3de85f cudaPackages.cuda-library-samples: Only enable on Linux, fix channel
This very weirdly broke the channel evaluation: https://hydra.nixos.org/build/245871962/nixlog/1

It appears that this attribute is only evaluated by Hydra, _not_ by
ofborg. So this wouldn't have been detected by CI anyways in the PR that
introduced the problem: https://github.com/NixOS/nixpkgs/pull/276800.

However, due to https://github.com/NixOS/nixpkgs/pull/271123#discussion_r1442134594,
the channel only broke once that was fixed with https://github.com/NixOS/nixpkgs/pull/278777

Whether the fix is good, I don't know, but the failing-on-darwin attribute
doesn't exist anymore with this commit, making the tarball build succeed
again:

    nix-build pkgs/top-level/release.nix -A tarball
2024-01-08 22:03:40 +01:00
Bryan Lai
df62c3c87f checkpointBuildTools: mkCheckpointedBuild -> mkCheckpointBuild
All other functions are in the form of `*{c,C}heckpointBuild*`, so we
deprecate the `mkCheckpointedBuild` function in favor of `mkCheckpointBuild`.

Also address some inconsistencies in the docs: some `buildOutput` should
actually be `incrementalBuildArtifacts`.
2024-01-08 19:42:16 +08:00
github-actions[bot]
a86f721682
Merge master into staging-next 2024-01-08 06:00:59 +00:00
Silvan Mosberger
6946071175 tests.checkpoint-build: Fix evaluation with allowAliases false
Was broken since introduced, but not caught due to
https://github.com/NixOS/nixpkgs/pull/271123#discussion_r1442134594
2024-01-07 23:25:41 +01:00
Silvan Mosberger
54b05324f4 tests.nixpkgs-check-by-name: Internal strip nixpkgs prefix
Strips the Nixpkgs prefix from the callPackage paths,
makes future error messages using this path be deterministic.
2024-01-05 02:01:55 +01:00
Silvan Mosberger
27c873af99 tests.nixpkgs-check-by-name: Deterministic ordering
Makes errors for attributes deterministic so it's easier to test (also,
reproducibility is always nice)
2024-01-05 02:01:55 +01:00
Silvan Mosberger
2a8f469348 tests.nixpkgs-check-by-name: Re-usable ratchet logic
This makes the attribute ratchet check logic more re-usable, which will
be used in a future commit.

It also renames the ratchet states to something more intuitive
2024-01-05 02:01:50 +01:00
Silvan Mosberger
ba6faf428f tests.nixpkgs-check-by-name: Make --base required
CI now passes the flag, so it doesn't have to be optional anymore
2024-01-05 01:05:50 +01:00
Silvan Mosberger
66f29590c0 tests.nixpkgs-check-by-name: Set evaluation system to x86_64-linux
This was previously a checking impurity that could produce different
results when run on different systems.
2024-01-05 01:05:44 +01:00
Silvan Mosberger
5b7ae79ef0 tests.nixpkgs-check-by-name: Refactor eval code and improve comments
Does a bunch of cleanups to the eval.{rs,nix} code to make future
changes easier, no functionality is changed.
2024-01-03 19:56:54 +01:00
K900
887e96e875 Merge remote-tracking branch 'origin/master' into staging-next 2024-01-02 10:55:23 +03:00
maralorn
5518af0a55 haskellPackages: Fix eval errors 2024-01-01 19:16:21 +01:00
maralorn
7b4156edda haskellPackages: Fix eval errors 2024-01-01 18:28:31 +01:00
Connor Baker
dd4723bad7
Merge pull request #272752 from ConnorBaker/feat/autoPatchelf-support-structuredAttrs
auto-patchelf: add support for __structuredAttrs
2023-12-21 19:09:56 -05:00
Silvan Mosberger
02b3c06b1c
Merge pull request #274591 from tweag/by-name-reproducible
`pkgs/by-name`: Enable gradual migration checks and add `run-local.sh`
2023-12-22 00:17:37 +01:00
Silvan Mosberger
e130ee33a1 pkgs/test/nixpkgs-check-by-name/scripts: Various improvements
- trace function, avoids littering `echo >&2` all throughout
- Avoid `eval`, remove unneeded shellcheck

Co-Authored-By: Victor Engmark <victor@engmark.name>
2023-12-22 00:04:16 +01:00
Yann Hamdaoui
00d0418804
Test __structuredAttrs support in autoPatchelf
This commit adds a test for the newly added support for
__structuredAttrs in autoPatchelf(hook). It copied a reasonably
small-closure binary derivation that makes use of autoPatchelf, stripped
it down for the purpose of the test, and check that autoPatchelf
correctly set the interpreter and runpath whether __structuredAttrs is
set to true or not.
2023-12-21 15:42:20 +01:00
Silvan Mosberger
1968beeabd check-by-name: Pass --base in CI and local running script
This enables the ratchet checks for pkgs/by-name, allowing gradual
migrations!
2023-12-20 17:38:06 +01:00
Silvan Mosberger
9e03178865 tests.nixpkgs-check-by-name: Add documentation for scripts 2023-12-20 17:38:05 +01:00
Silvan Mosberger
92238ac52d tests.nixpkgs-check-by-name: Create script to run locally
Due to the check soon depending on the base branch (see `--base`),
the CI check can't reasonably share all code with a local check.
We can still make a script to run it locally, just not sharing all code.
2023-12-20 17:38:03 +01:00
Silvan Mosberger
3869ba4127 workflows/check-by-name: Move tool fetching into script
This part of the CI can also be reproduced locally
2023-12-19 23:15:01 +01:00
Janne Heß
5eed5416ff
Merge pull request #167670 from messemar/incremental-builds
incremental builds: add derivation override functions
2023-12-19 11:37:15 +01:00
Silvan Mosberger
2a107bc64b
Merge pull request #272395 from tweag/by-name-migrate-empty-arg
tests.nixpkgs-check-by-name: Implement gradual empty arg check migration
2023-12-15 19:08:11 +01:00
Silvan Mosberger
fc2d26939d tests.nixpkgs-check-by-name: Improve check clarity 2023-12-15 17:27:26 +01:00
Adam Joseph
2d036511f6 pkgs/test/release/default.nix: init
This derivation verifies that all jobset attributes can be evaluated
under tryEval without producing any non-catchable errors or causing
infinite recursion.
2023-12-15 05:13:50 -08:00
Adam Joseph
80472e3754 treewide: add __attrsFailEvaluation and __recurseIntoDerivationForReleaseJobs 2023-12-15 05:13:46 -08:00
Silvan Mosberger
74e8b38dbe tests.nixpkgs-check-by-name: Move interface description into code
This would be duplicated otherwise
2023-12-15 02:28:55 +01:00
Silvan Mosberger
79618ff8cb tests.nixpkgs-check-by-name: Improve docs, introduce "ratchet" term 2023-12-15 02:14:48 +01:00
Silvan Mosberger
413dd9c03e tests.nixpkgs-check-by-name: Minor improvements from review 2023-12-15 01:02:49 +01:00
Silvan Mosberger
53b43ce0e3 tests.nixpkgs-check-by-name: Fix and document behavior without --base
Previously, not passing `--base` would enforce the most strict checks.
While there's currently no actual violation of these stricter checks,
this does not match the previous behavior.

This won't matter once CI passes `--base`, the code handling the
optionality can be removed then.
2023-12-15 01:01:14 +01:00
Silvan Mosberger
bb08bfc2d3 tests.nixpkgs-check-by-name: Test for gradual transition
This implements the ability to test gradual transitions in check
strictness, and adds one such test for the empty non-auto-called
arguments check.
2023-12-14 04:05:03 +01:00
Silvan Mosberger
d487a975cc tests.nixpkgs-check-by-name: Gradual migration from base Nixpkgs
This implements the option for a gradual migration to stricter checks.
For now this is only done for the check against empty non-auto-called
callPackage arguments, but in the future this can be used to ensure all
new packages make use of `pkgs/by-name`.

This is implemented by adding a `--base <BASE_NIXPKGS>` flag, which then
compares the base nixpkgs against the main nixpkgs version, making sure
that there are no regressions.

The `--version` flag is removed. While it was implemented, it was never
used in CI, so this is fine.
2023-12-14 03:51:10 +01:00
Silvan Mosberger
a6ba4cae31 tests.nixpkgs-check-by-name: Intermediate refactor
This prepares the code base for the removal of the `--version` flag, to
be replaced with a flag that can specify a base version to compare the
main Nixpkgs against, in order to have gradual transitions to stricter
checks.

This refactoring does:
- Introduce the `version` module that can house the logic to increase
  strictness, with a `version::Nixpkgs` struct that contains the
  strictness conformity of a single Nixpkgs version
- Make the check return `version::Nixpkgs`
- Handle the behavior of the still-existing `--version` flag with `version::Nixpkgs`
- Introduce an intermediate `process` function to handle the top-level
  logic, especially useful in the next commit
2023-12-14 03:40:49 +01:00