Commit graph

224 commits

Author SHA1 Message Date
Alexander Bantyev 07bffe7998
Flakes: refetch the input when a follows disappears
When an input follows disappears, we can't just reuse the old lock
file entries since we may be missing some required ones. Refetch the
input when this happens.

Closes https://github.com/NixOS/nix/issues/5289
2021-11-11 12:05:18 +03:00
regnat 1f3c3a3785 Make the flake options work when using the daemon
When setting flake-local options (with the `nixConfig` field), forward
these options to the daemon in case we’re using one.

This is necessary in particular for options like `binary-caches` or
`post-build-hook` to make sense.

Fix <343239fc8a (r44356843)>
2021-11-05 16:19:16 +01:00
regnat af99941279 Make experimental-features a proper type
Rather than having them plain strings scattered through the whole
codebase, create an enum containing all the known experimental features.

This means that
- Nix can now `warn` when an unkwown experimental feature is passed
  (making it much nicer to spot typos and spot deprecated features)
- It’s now easy to remove a feature altogether (once the feature isn’t
  experimental anymore or is dropped) by just removing the field for the
  enum and letting the compiler point us to all the now invalid usages
  of it.
2021-10-26 07:02:31 +02:00
Eelco Dolstra d39692e6b3 Make builtins.{path,filterSource} work with chroot stores 2021-10-07 14:22:39 +02:00
Eelco Dolstra cfaad7168e Refactoring: Add allowPath() method 2021-10-07 12:11:00 +02:00
Andreas Rammhold cae41eebff libexpr: remove matchAttrs boolean from ExprLambda
The boolean is only used to determine if the formals are set to a
non-null pointer in all our cases. We can get rid of that allocation and
instead just compare the pointer value with NULL. Saving up to
sizeof(bool) + platform specific alignment per ExprLambda instace.
Probably not a lot of memory but perhaps a few kilobyte with nixpkgs?

This also gets rid of a potential issue with dereferencing formals based on
the value of the boolean that didn't have to be aligned with the formals
pointer but was in all our cases.
2021-10-06 17:24:06 +02:00
Maximilian Bosch 2b02ce0e48
libexpr: throw a more helpful eval-error if a builtin is not available due to a missing feature-flag
I found it somewhat confusing to have an error like

    error: attribute 'getFlake' missing

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

With this change, the error looks like this:

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

           at «string»:1:1:

                1| builtins.getFlake "nixpkgs"
                 | ^

I didn't use `settings.requireExperimentalFeature` here on purpose
because this doesn't contain a position. Also, it doesn't seem as if we
need to catch the error and check for the missing feature here since
this already happens at evaluation time.
2021-09-29 11:57:15 +02:00
Eelco Dolstra 60cc975d22 Set input parent at construction time 2021-09-21 14:07:16 +02:00
Geoff Reedy cbe9ddfd1a Include subpath in flake fingerprint
Without this, flakes within the same tree and same lock data will have
the same fingerprint and the eval cache for one flake will be
incorrectly used for another.
2021-09-16 15:58:21 -06:00
Eelco Dolstra 027344ce7e If we can't write a lock file, pretend the top-level flake is dirty
Alternative to #4639. You can still read flake.lock, but at least in
reproducible workflows like NixOS configurations where you require a
non-dirty tree, evaluation will fail because there is no rev.
2021-09-15 18:31:42 +02:00
Naïm Favier b0d4190f19
Fix use-registries logic in builtins.getFlake 2021-09-05 15:28:44 +02:00
Robert Hensing 8bc76acc7c Move vCallFlake into EvalState
This fixes a use-after-free bug:

1. s = new EvalState();
2. callFlake()
3. static vCallFlake now references s
4. delete s;
5. s2 = new EvalState();
6. callFlake()
7. static vCallFlake still references s
8. crash

Nix 2.3 did not have a problem with recreating EvalState.
2021-08-29 20:42:49 +02:00
Eelco Dolstra af94b54db3 Coding style 2021-08-23 13:05:42 +02:00
Alex Zero b3c424f5a6
Fix follows paths in subordinate lockfiles 2021-08-17 15:25:42 +01:00
Eelco Dolstra 6b8069b823 In flake lock file diffs, show the last-modified date of inputs if available
This is a bit more informative than just the hash.

Also, format the diffs a bit nicer.
2021-08-11 19:35:28 +02:00
Alexander Bantyev 54c580b71f
Whitelist nixConfig.flake-registry
flake-registry should be safe to set to an aribtrary value, since it
is identical to just setting `inputs`.
2021-08-07 14:42:59 +03:00
Alexander Bantyev 3e57e3480b
Add use-registries config option (and deprecate --no-registries flag)
Some people want to avoid using registries at all on their system; Instead
of having to add --no-registries to every command, this commit allows to
set use-registries = false in the config. --no-registries is still allowed
everywhere it was allowed previously, but is now deprecated.

Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2021-07-16 23:26:04 +03:00
Alexander Bantyev e756a59c72
fixup! flake.nixConfig: fix flake-registry config settings 2021-07-01 17:54:22 +03:00
Alexander Bantyev ef1e7ab840
flake.nixConfig: fix flake-registry config settings
Before this commit, nixConfig.flake-registry didn't have any real effect
on the evaluation, since config was applied after inputs were evaluated.
Change this behavior: apply the config in the beginning of flake::lockFile.
2021-07-01 00:23:47 +03:00
regnat 4cff8188a5 Keep the isFlake attribute for overriden inputs
When overriding an input that isn’t a flake, mark the override as also not
being a flake.

Fix #3774
2021-06-29 13:56:48 +02:00
Matthew Bauer 2f63cc02de Create parent trusted list path before writing
This makes sure that $HOME/.local/share/nix exists before we try to
write to it.
2021-05-08 21:31:28 -05:00
Eelco Dolstra 4638bcfb2c Fix some typos
Fixes #4671.
2021-03-26 16:14:38 +01:00
Eelco Dolstra c03f41055d Add traces to errors while updating flake lock file
Example:

$ nix build --show-trace
error: unable to download 'https://api.github.com/repos/NixOS/nixpkgs/commits/no-such-branch': HTTP error 422 ('')

       response body:

       {
         "message": "No commit found for SHA: no-such-branch",
         "documentation_url": "https://docs.github.com/rest/reference/repos#get-a-commit"
       }

       … while fetching the input 'github:NixOS/nixpkgs/no-such-branch'

       … while updating the flake input 'nixpkgs'

       … while updating the lock file of flake 'git+file:///home/eelco/Dev/nix'
2021-01-27 14:02:54 +01:00
Jonathan Ringer 86a2ceeb98 Fix gcc10 build 2021-01-15 10:41:35 +01:00
Danila 1db3f84bac
Upcase "Boolean" in Flake attribute type error
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2021-01-08 16:12:21 -08:00
Danila Fedorin ba0f841a07 Use switch statement instead of sequence of ifs 2021-01-08 03:13:42 +00:00
Danila Fedorin 93f1678ec6 Allow Flake inputs to accept boolean and integer attributes
I believe that this makes it possible to do things like
Git inputs with submodules, but it also likely applies
to other input types from libfetchers.
2021-01-08 01:53:57 +00:00
Silvan Mosberger 12e65078ef
Rename Value::normalType() -> Value::type() 2020-12-17 14:45:45 +01:00
Silvan Mosberger d67e02919c
Rename ValueType -> InternalType, NormalType -> ValueType
And Value::type to Value::internalType, such that type() can be used in
the next commit to get the new ValueType
2020-12-17 14:45:22 +01:00
Silvan Mosberger bf98903967
Add ValueType checking functions for types that have the same NormalType 2020-12-12 03:31:50 +01:00
Silvan Mosberger 22ead43a0b
Use Value::normalType on all forced values instead of Value::type 2020-12-12 03:31:48 +01:00
Silvan Mosberger fa307875e9
Introduce NormalType for the normal type of a Value
This will be useful to abstract over the ValueType implementation
details

Make use of it already to replace the showType(ValueType) function
2020-12-12 03:31:46 +01:00
Eelco Dolstra 8252a44e96 Move to separate file 2020-11-26 13:16:36 +01:00
Eelco Dolstra 9a586e34ac Record trusted/untrusted settings in ~/.local/share/nix 2020-11-26 13:11:07 +01:00
Eelco Dolstra 0287f83057 Ask for confirmation before allowing flake Nix configuration settings 2020-11-26 12:37:23 +01:00
Eelco Dolstra 0327580e54 Fix assertion failure in LockFile::LockFile()
Fixes #4241.
2020-11-19 20:31:30 +01:00
Eelco Dolstra 4dbd05e933
Merge pull request #4189 from edolstra/flake-config
Allow nix.conf options to be set in flake.nix
2020-11-17 15:39:14 +01:00
Matthew Kenigsberg 6a4bf535d8 Capitalize JSON for consistency 2020-10-28 17:54:28 -05:00
Eelco Dolstra 343239fc8a Allow nix.conf options to be set in flake.nix
This makes it possible to have per-project configuration in flake.nix,
e.g. binary caches and other stuff:

  nixConfig.bash-prompt-suffix = "ngi# ";
  nixConfig.substituters = [ "https://cache.ngi0.nixos.org/" ];
2020-10-26 20:45:39 +01:00
Eelco Dolstra b875b8f45c Remove edition field 2020-10-26 17:59:36 +01:00
Eelco Dolstra 9d5e9ef0da Move Explicit 2020-10-26 17:01:20 +01:00
Eelco Dolstra 9635fb77bd
Merge pull request #4080 from kquick/kwq/flake-int-doc
Add some internal documentation for flake support objects.
2020-10-19 11:29:12 +02:00
Eelco Dolstra 636455c471 Remove 'using namespace fetchers' 2020-10-06 11:16:32 +02:00
Eelco Dolstra 76f000712e Merge branch 'kwq/path-dir-query' of https://github.com/kquick/nix 2020-09-29 23:42:43 +02:00
Eelco Dolstra 64e9b3c83b nix registry list: Show 'dir' attribute
Issue #4050.
2020-09-29 23:33:16 +02:00
Kevin Quick 887be7b6f2
Switch comment format from '// ...' to '/* ... */' for consistency. 2020-09-28 09:37:26 -07:00
Kevin Quick 128c98ab09
Clarification in the description of the FlakeInput. 2020-09-28 09:34:23 -07:00
Kevin Quick 5ae164b7cf
Update description of FlakeRef, incorporating suggestion. 2020-09-28 09:23:05 -07:00
Kevin Quick 5885b0cfd8
Miscellaneous spelling fixes in comments. (#4071) 2020-09-27 20:04:06 +00:00
Kevin Quick bd5328814f
Add some internal documentation for flake support objects. 2020-09-26 14:32:58 -07:00
Kevin Quick cb186f1e75
Use "?dir=..." portion of "registry add" local path specification.
The registry targets generally follow a URL formatting schema with
support for a query parameter of "?dir=subpath" to specify a sub-path
location below the URL root.

Alternatively, an absolute path can be specified.  This specification
mode accepts the query parameter but ignores/drops it.  It would
probably be better to either (a) disallow the query parameter for the
path form, or (b) recognize the query parameter and add to the path.

This patch implements (b) for consistency, and to make it easier for
tooling that might switch between a remote git reference and a local
path reference.

See also issue #4050.
2020-09-25 09:36:18 -07:00
Paul Opiyo 4d863a9fcb Remove redundant value checks
std::optional had redundant checks for whether it had a value.
An object is emplaced either way so it can be dereferenced
without repeating a value check
2020-09-24 18:32:03 -05:00
Eelco Dolstra 8a2e10827f Remove unused Flake::vOutputs field 2020-09-23 14:08:52 +02:00
Domen Kožar dac8a1a5e1
Merge pull request #4052 from ujjwaljainnn/fix-typo
fixed typo
2020-09-23 09:58:30 +02:00
ujjwal a2f5c921d4 fixed typo 2020-09-22 23:37:06 +05:30
Eelco Dolstra e8e1d420f3 Don't include <regex> in header files
This reduces compilation time by ~15 seconds (CPU time).

Issue #4045.
2020-09-21 18:22:45 +02:00
regnat 7d5bdf8b56 Make the store plugins more introspectable
Directly register the store classes rather than a function to build an
instance of them.
This gives the possibility to introspect static members of the class or
choose different ways of instantiating them.
2020-09-16 13:53:08 +02:00
Maximilian Bosch e4940e90f3
Restore backwards-compat for current builtins.fetchGit
If a repo is dirty, it used to return a `rev` object with an "empty"
sha1 (0000000000000000000000000000000000000000). Please note that this
only applies for `builtins.fetchGit` and *not* for `builtins.fetchTree{
type = "git"; }`.
2020-07-28 22:46:39 +02:00
Eelco Dolstra 17f75f9cc4 parseFlakeRef(): Only search for the top-level directory for CLI flakerefs 2020-07-17 14:54:21 +02:00
Eelco Dolstra da3aea291d EvalCache: Ignore SQLite errors
Fixes #3794.
2020-07-14 15:17:38 +02:00
Eelco Dolstra 54712aaf8a Merge remote-tracking branch 'origin/master' into flakes 2020-07-06 16:40:10 +02:00
Eelco Dolstra 7d554f295c Support building flakes from a shallow Git repo
Fixes #3756.
2020-07-01 14:57:59 +02:00
Eelco Dolstra ad66fb0a37 getFlake -> builtins.getFlake 2020-06-17 17:05:08 +02:00
Eelco Dolstra 0a1d3c1dd3 Don't provide 'getFlake' if the 'flakes' feature is not enabled 2020-06-17 16:54:32 +02:00
Eelco Dolstra 7db879e65e Check 'follows' inputs 2020-06-12 00:52:56 +02:00
Eelco Dolstra d15c20efd5 diffLockFiles(): Show 'follows' changes 2020-06-11 22:00:58 +02:00
Eelco Dolstra 0c62b4ad0f Represent 'follows' inputs explicitly in the lock file
This fixes an issue where lockfile generation was not idempotent:
after updating a lockfile, a "follows" node would end up pointing to a
new copy of the node, rather than to the original node.
2020-06-11 14:40:21 +02:00
Eelco Dolstra 195ed43b60 Preserve 'isFlake' when not updating a lock file entry 2020-06-10 16:24:05 +02:00
Eelco Dolstra 2226e97ec2 Combine lock file update messages 2020-06-10 15:22:12 +02:00
Eelco Dolstra fc6c7af424 Add helper function printInputPath() 2020-06-10 15:20:00 +02:00
Eelco Dolstra 6cfc2db494 Fix applyOverride() for github 2020-06-09 13:45:07 +02:00
Eelco Dolstra 6470450ab4 Add completion for --update-input 2020-06-08 16:20:00 +02:00
Eelco Dolstra 9ef6048d78 diffLockFiles(): Fix assertion failure
There are some cases where this inequality didn't hold, in particular
due to the Input / TreeInfo merge, where we're not always showing
narHash.
2020-06-05 20:52:23 +02:00
Matthew Kenigsberg ff1320b850 fetchOrSubstituteTree improvements
Caches tree in addition to lockedRef, and explicitly writes out the logic for different combinations of cached/uncached flakes and indirect/resolved/locked flakes. This eliminates uneccessary calls to lookupInFlakeCache, fetchTree, maybeLookupFlake, and flakeCache.push_back
2020-06-01 02:57:22 -06:00
Eelco Dolstra 89e0b3e2d6 Move substitution into Input::fetch()
Closes #3520.
2020-05-30 01:16:53 +02:00
Eelco Dolstra 950b46821f Remove TreeInfo
The attributes previously stored in TreeInfo (narHash, revCount,
lastModified) are now stored in Input. This makes it less arbitrary
what attributes are stored where.

As a result, the lock file format has changed. An entry like

    "info": {
      "lastModified": 1585405475,
      "narHash": "sha256-bESW0n4KgPmZ0luxvwJ+UyATrC6iIltVCsGdLiphVeE="
    },
    "locked": {
      "owner": "NixOS",
      "repo": "nixpkgs",
      "rev": "b88ff468e9850410070d4e0ccd68c7011f15b2be",
      "type": "github"
    },

is now stored as

    "locked": {
      "owner": "NixOS",
      "repo": "nixpkgs",
      "rev": "b88ff468e9850410070d4e0ccd68c7011f15b2be",
      "type": "github",
      "lastModified": 1585405475,
      "narHash": "sha256-bESW0n4KgPmZ0luxvwJ+UyATrC6iIltVCsGdLiphVeE="
    },

The 'Input' class is now a dumb set of attributes. All the fetcher
implementations subclass InputScheme, not Input. This simplifies the
API.

Also, fix substitution of flake inputs. This was broken since lazy
flake fetching started using fetchTree internally.
2020-05-30 00:44:11 +02:00
Eelco Dolstra 1ad71bc62c Remove support for old lockfiles and the epoch/uri attributes 2020-05-06 17:48:18 +02:00
Eelco Dolstra 6521c92ce8 Improve path:// handling
In particular, doing 'nix build /path/to/dir' now works if
/path/to/dir is not a Git tree (it only has to contain a flake.nix
file).

Also, 'nix flake init' no longer requires a Git tree (but it will do a
'git add flake.nix' if it's a Git tree)
2020-04-27 22:53:11 +02:00
Eelco Dolstra 8c75621da6 Fix typo 2020-04-20 15:28:56 +02:00
Eelco Dolstra 42a12f9232 Move eval-cache.{cc,hh} 2020-04-20 13:14:59 +02:00
Eelco Dolstra 539a9c1c5f Get rid of the old eval cache 2020-04-20 13:13:52 +02:00
Eelco Dolstra c277231b7d Use RootValue 2020-04-16 18:33:34 +02:00
Eelco Dolstra e5ea01c1a8
Remove flake 'edition' field
Future editions of flakes or the Nix language can be supported by
renaming flake.nix (e.g. flake-v2.nix). This avoids a bootstrap
problem where we don't know which grammar to use to parse
flake*.nix. It also allows a project to support multiple flake
editions, in theory.
2020-04-10 10:24:09 +02:00
Eelco Dolstra 68b43e01dd
nix flake info: Show resolved URL
This is useful for finding out what a registry lookup resolves to, e.g

  $ nix flake info patchelf
  Resolved URL:  github:NixOS/patchelf
  Locked URL:    github:NixOS/patchelf/cd7955af31698c571c30b7a0f78e59fd624d0229
2020-04-06 14:56:13 +02:00
Eelco Dolstra 6e7f252ea6 Make --override-input sticky
When we do something like 'nix flake update --override-input nixpkgs
...', the override is now kept on subsequent calls. (If you don't want
this behaviour, you can use --no-write-lock-file.)
2020-04-03 14:06:29 +02:00
Eelco Dolstra 9c78f7f196 getFlake: In pure mode, check that the argument is an immutable flakeref 2020-04-03 13:07:05 +02:00
Eelco Dolstra a6ff66b658 Respect the narHash attribute in more input types
call-flake.nix now passes node.info.narHash to fetchTree. This ensures
that dirty Git trees work even in pure mode.
2020-04-02 19:04:33 +02:00
Eelco Dolstra 6d6467d376 Move parseTreeInfo() 2020-04-02 18:26:39 +02:00
Eelco Dolstra ed13457dbf nix flake info --json: Show TreeInfo 2020-04-02 11:51:34 +02:00
Eelco Dolstra e0a0ae0467 Move fetchers from libstore to libfetchers 2020-03-30 14:04:53 +02:00
Eelco Dolstra 2fccef0c59 Warn about --override-input / --update-input flags that don't match an input 2020-03-28 19:09:36 +01:00
Eelco Dolstra 2287e2f279 nix flake info: Show flake subdirectory 2020-03-28 18:05:50 +01:00
Eelco Dolstra 015f8f1c13 Improve lock file generation
This is now done in a single pass. Also fixes some issues when
updating flakes with circular dependencies. Finally, when using
'--recreate-lock-file --commit-lock-file', the commit message now
correctly shows the differences.
2020-03-27 21:08:41 +01:00
Eelco Dolstra 3fa1e7dace Fix diffLockFiles() 2020-03-27 16:15:50 +01:00
Eelco Dolstra 2a4e4f6a6e
Unified fetcher caching system 2020-03-17 22:35:29 +01:00
Eelco Dolstra ae9119167e Change the lock file to a graph
This enables support for cycles between flakes.
2020-03-12 22:06:57 +01:00
Eelco Dolstra e188fe7c6d Move call-flake.nix into libexpr 2020-03-11 17:04:51 +01:00
Eelco Dolstra cfc38257cf Fix flake subdirectory handling 2020-03-10 19:21:47 +01:00
Eelco Dolstra 73769b28e3 Move calling flakes into a Nix helper function (call-flake.nix) 2020-03-09 15:28:41 +01:00
Eelco Dolstra 5a1514adb8 Add 'flake' attribute to lock files to denote non-flakes 2020-03-09 15:27:49 +01:00