Commit graph

173 commits

Author SHA1 Message Date
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
b69323f8c9 Revive 'nix search'
It uses the evaluation cache now rather than the ad hoc JSON cache.
2020-04-20 15:27:09 +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
0725ab2fd7 Store more stuff in the evaluation cache
In particular, we store whether an attribute failed to evaluate (threw
an exception) or was an unsupported type. This is to ensure that a
repeated 'nix flake show' never has to evaluate anything, so it can
execute without fetching the flake.

With this, 'nix flake show nixpkgs/nixos-20.03 --legacy' executes in
0.6s (was 3.4s).
2020-04-19 23:07:06 +02:00
Eelco Dolstra
3738bcb05e Eval cache: Don't replace real attributes with placeholders 2020-04-18 15:12:31 +02:00
Eelco Dolstra
69cb9f7eee Wrap eval cache creation in a giant transaction
This speeds up the creation of the cache for the nixpkgs flake from
21.2s to 10.2s. Oddly, it also speeds up querying the cache
(i.e. running 'nix flake show nixpkgs/nixos-20.03 --legacy') from 4.2s
to 3.4s.

(For comparison, running with --no-eval-cache takes 9.5s, so the
overhead of building the SQLite cache is only 0.7s.)
2020-04-17 23:17:21 +02:00
Eelco Dolstra
aaa109565e Use a more space/time-efficient representation for the eval cache 2020-04-17 23:04:21 +02:00
Eelco Dolstra
bdb3226607 Add flag to disable the eval cache 2020-04-17 14:30:04 +02:00
Eelco Dolstra
aa34c0ef51 nix flake show: Speed up eval cache bigly
In the fully cached case for the 'nixpkgs' flake, it went from 101s to
4.6s. Populating the cache went from 132s to 17.4s (which could
probably be improved further by combining INSERTs).
2020-04-17 13:57:02 +02:00
Eelco Dolstra
9ea4f93f88 nix flake show: Support apps 2020-04-17 01:21:24 +02:00
Eelco Dolstra
12b7eefbc5 nix flake show: Use evaluation cache 2020-04-17 01:02:29 +02:00
Eelco Dolstra
3b489e8843 Add 'nix flake show' command 2020-04-16 19:52:39 +02:00
Eelco Dolstra
29043e7e9e Fix 2020-04-16 19:01:49 +02:00
Eelco Dolstra
8f41847394 Use Logger::stdout() 2020-04-16 13:47:59 +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
ce3173edc1
nix flake info --json: Don't evaluate
This makes its behaviour consistent with the non-json
variant. Querying the outputs should be done by another command
(e.g. 'nix search')
2020-04-06 14:39:47 +02:00
Eelco Dolstra
ed13457dbf nix flake info --json: Show TreeInfo 2020-04-02 11:51:34 +02:00
Eelco Dolstra
bd10a07d17 Registry: Use a struct instead of a tuple for entries 2020-04-01 23:03:27 +02:00
Eelco Dolstra
77ffaea4fa Add a system-wide flake registry /etc/nix/registry.json
One application for this is pinning the 'nixpkgs' flake to the exact
revision used to build the NixOS system, e.g.

  {
      "flakes": [
          {
              "from": {
                  "id": "nixpkgs",
                  "type": "indirect"
              },
              "to": {
                  "owner": "NixOS",
                  "repo": "nixpkgs",
                  "type": "github",
                  "rev": "b0c285807d6a9f1b7562ec417c24fa1a30ecc31a"
              }
          }
      ],
      "version": 2
  }
2020-04-01 22:56:50 +02:00
Eelco Dolstra
e0a0ae0467 Move fetchers from libstore to libfetchers 2020-03-30 14:04:53 +02:00
Eelco Dolstra
4989c04dd2 nix flake info --json: Dump attr-style flakeref 2020-03-28 22:59:38 +01:00
Eelco Dolstra
2287e2f279 nix flake info: Show flake subdirectory 2020-03-28 18:05:50 +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
73c9840569 Restore subdir -> dir
Got this mixed up somewhere.
2020-02-20 23:44:06 +01:00
Eelco Dolstra
d068f9ffff Restore subdir support in registries
Hacky...
2020-02-20 22:14:44 +01:00
Eelco Dolstra
46a284263f Fix build 2020-02-14 22:45:33 +01:00
Eelco Dolstra
0b013a54dc findAlongAttrPath(): Return position 2020-02-07 14:08:24 +01:00
Eelco Dolstra
b270869466
Renamed ref / resolvedRef -> lockedRef 2020-02-02 00:06:59 +01:00
Eelco Dolstra
887730aab3
Remove superfluous TreeInfo::rev field 2020-02-01 23:54:20 +01:00
Eelco Dolstra
8451298b35
Factor out TreeInfo 2020-02-01 22:06:55 +01:00
Eelco Dolstra
5d70b454be
nix flake update: Imply --refresh 2020-02-01 12:30:49 +01:00
Eelco Dolstra
678301072f nix flake list-inputs: Pretty-print the tree 2020-01-31 14:09:27 +01:00
Eelco Dolstra
a6e2b6b360 nix flake deps -> nix flake list-inputs
Also add a --json flag.
2020-01-31 13:00:50 +01:00
Eelco Dolstra
ebfbfe9515 Use std::nullopt 2020-01-30 01:10:26 +01:00
Eelco Dolstra
3c54e9ba01 Add 'nix flake archive' command
This copies a flake and all its inputs recursively to a store (e.g. a
binary cache). This is intended to enable long-term reproducibility
for flakes. However this will also require #3253.

Example:

  $ nix flake archive --json --to file:///tmp/my-cache nixops
  {"path":"/nix/store/272igzkgl1gdzmabsjvb2kb2zqbphb3p-source","inputs":{"nixops-aws":{"path":"/nix/store/ybcykw13gr7iq1pzg18iyibbcv8k9q1v-source","inputs":{}},"nixops-hetzner":{"path":"/nix/store/6yn0205x3nz55w8ms3335p2841javz2d-source","inputs":{}},"nixpkgs":{"path":"/nix/store/li3lkr2ajrzphqqz3jj2avndnyd3i5lc-source","inputs":{}}}}

  $ ll /tmp/my-cache
  total 16
  -rw-r--r-- 1 eelco users 403 Jan 30 01:01 272igzkgl1gdzmabsjvb2kb2zqbphb3p.narinfo
  -rw-r--r-- 1 eelco users 403 Jan 30 01:01 6yn0205x3nz55w8ms3335p2841javz2d.narinfo
  -rw-r--r-- 1 eelco users 408 Jan 30 01:01 li3lkr2ajrzphqqz3jj2avndnyd3i5lc.narinfo
  drwxr-xr-x 2 eelco users   6 Jan 30 01:01 nar
  -rw-r--r-- 1 eelco users  21 Jan 30 01:01 nix-cache-info
  -rw-r--r-- 1 eelco users 404 Jan 30 01:01 ybcykw13gr7iq1pzg18iyibbcv8k9q1v.narinfo

Fixes #3336.
2020-01-30 01:00:34 +01:00
Eelco Dolstra
26f895a26d Clean up the lock file handling flags
Added a flag --no-update-lock-file to barf if the lock file needs any
changes. This is useful for CI systems if you're building a
checkout. Fixes #2947.

Renamed --no-save-lock-file to --no-write-lock-file. It is now a fatal
error if the lock file needs changes but --no-write-lock-file is not
given.
2020-01-29 21:04:28 +01:00
Eelco Dolstra
f68bed7f67 Add flag --override-input to override specific lock file entries
E.g.

  $ nix flake update ~/Misc/eelco-configurations/hagbard \
    --override-input 'dwarffs/nixpkgs' ../my-nixpkgs

overrides the 'nixpkgs' input of the 'dwarffs' input of the top-level
flake.

Fixes #2837.
2020-01-29 18:41:25 +01:00
Eelco Dolstra
872a22fa23 resolveFlake -> lockFlake
"resolve" is ambiguous (also used for registry resolution).
2020-01-22 20:59:59 +01:00
Eelco Dolstra
90d55ed275 Fix 'nix flake update' 2020-01-22 19:28:27 +01:00
Eelco Dolstra
32f31a8c63 nix flake info: Don't show empty descriptions 2020-01-22 17:20:21 +01:00
Eelco Dolstra
9f4d8c6170 Pluggable fetchers
Flakes are now fetched using an extensible mechanism. Also lots of
other flake cleanups.
2020-01-21 22:56:04 +01:00
Eelco Dolstra
ecb3a1afa2 Merge remote-tracking branch 'origin/master' into flakes 2019-12-11 14:53:30 +01:00
Eelco Dolstra
ce27920936 Add start of 'nix profile' command 2019-10-22 00:22:15 +02:00
Eelco Dolstra
7d38060a0d Support non-x86_64-linux system types in flakes
A command like

  $ nix run nixpkgs#hello

will now build the attribute 'packages.${system}.hello' rather than
'packages.hello'. Note that this does mean that the flake needs to
export an attribute for every system type it supports, and you can't
build on unsupported systems. So 'packages' typically looks like this:

  packages = nixpkgs.lib.genAttrs ["x86_64-linux" "i686-linux"] (system: {
    hello = ...;
  });

The 'checks', 'defaultPackage', 'devShell', 'apps' and 'defaultApp'
outputs similarly are now attrsets that map system types to
derivations/apps. 'nix flake check' checks that the derivations for
all platforms evaluate correctly, but only builds the derivations in
'checks.${system}'.

Fixes #2861. (That issue also talks about access to ~/.config/nixpkgs
and --arg, but I think it's reasonable to say that flakes shouldn't
support those.)

The alternative to attribute selection is to pass the system type as
an argument to the flake's 'outputs' function, e.g. 'outputs = { self,
nixpkgs, system }: ...'. However, that approach would be at odds with
hermetic evaluation and make it impossible to enumerate the packages
provided by a flake.
2019-10-15 18:16:29 +02:00
Eelco Dolstra
a0bd088d84
Move addRegistrOverrides 2019-10-08 17:00:55 +02:00
Eelco Dolstra
21304c11f9
uri -> url for consistency 2019-10-08 17:00:55 +02:00
Eelco Dolstra
382aa05ff7 nix flake info --json: Get rid of duplicate getFlake() call
Also fix some gcc warnings.
2019-09-22 21:53:01 +02:00
Eelco Dolstra
5573365dff
nix flake check: Validate nixosConfigurations outputs 2019-09-19 20:15:42 +02:00
Eelco Dolstra
c67407172d
Record original flakerefs in the lock file again
If 'input.<name>.uri' changes, then the entry in the lockfile for
input <name> should be considered stale.

Also print some messages when lock file entries are added/updated.
2019-09-18 21:57:57 +02:00
Eelco Dolstra
55e55b34e6
nix flake check: Check hydraJobs 2019-09-10 17:39:55 +02:00
Eelco Dolstra
4b9dee6bcc
nix flake check: Do some basic checks on NixOS modules
Also show more position info.
2019-09-10 15:25:32 +02:00
Eelco Dolstra
dc3f52a144
nix flake check: Check overlays 2019-09-10 14:52:22 +02:00
Eelco Dolstra
80c36d4562 Remove 'name' attribute from flakes
This is no longer needed since flakes are given an identity in the
'inputs' attribute.
2019-08-30 16:38:27 +02:00
Eelco Dolstra
ad42a78469
Rename 'epoch' -> 'edition' 2019-07-11 13:54:53 +02:00
Eelco Dolstra
d4fe9daed6
Simplify getFlake() / fetchFlake() logic 2019-06-21 19:04:58 +02:00
Eelco Dolstra
a0de58f471
Make subcommand construction in MultiCommand lazy 2019-06-18 16:25:31 +02:00
Eelco Dolstra
eb18aedccb
Merge pull request #2951 from NixOS/app-improvements
App / check improvements
2019-06-18 16:15:40 +02:00
Eelco Dolstra
d4a48b12fa
Merge pull request #2917 from CSVdB/docs
Updated flake documentation
2019-06-18 16:05:55 +02:00
Eelco Dolstra
8a6704d826 Updated documentation 2019-06-18 11:08:04 +02:00
Eelco Dolstra
556f33422d
nix flake check: Ignore legacyPackages 2019-06-18 09:45:14 +02:00
Eelco Dolstra
f2fcc163fa
nix flake check: Warn about unknown flake outputs 2019-06-17 18:05:32 +02:00
Eelco Dolstra
9d1207c02c
nix flake check: Check apps 2019-06-17 17:59:57 +02:00
Eelco Dolstra
3b2ebd029c
nix flake info --json: Revive enumerating the outputs 2019-06-17 17:31:34 +02:00
Eelco Dolstra
54aff8430c
Move flake-related stuff to src/libexpr/flake 2019-06-05 16:51:54 +02:00
Eelco Dolstra
1e53a07712
Make non-flake inputs lazy
Also add a proper test for non-flake inputs.
2019-06-04 20:56:42 +02:00
Eelco Dolstra
6dbd5c26e6
Make flake input fetching lazy
As long as the flake input is locked, it is now only fetched when it
is evaluated (e.g. "nixpkgs" is fetched when
"inputs.nixpkgs.<something>" is evaluated).

This required adding an "id" attribute to the members of "inputs" in
lockfiles, e.g.

  "inputs": {
    "nixpkgs/release-19.03": {
      "id": "nixpkgs",
      "inputs": {},
      "narHash": "sha256-eYtxncIMFVmOHaHBtTdPGcs/AnJqKqA6tHCm0UmPYQU=",
      "nonFlakeInputs": {},
      "uri": "github:edolstra/nixpkgs/e9d5882bb861dc48f8d46960e7c820efdbe8f9c1"
    }
  }

because the flake ID needs to be known beforehand to construct the
"inputs" attrset.

Fixes #2913.
2019-06-04 19:17:03 +02:00
Eelco Dolstra
094539ef4a
Rename requires -> inputs, provides -> outputs
Issue #2828.
2019-05-31 09:59:48 +02:00
Eelco Dolstra
49436bdbb7
nix flake info --json: List the "provides"
It also lists the contents of "checks" and "packages".

For example:

  $ nix flake info --json | jq
  {
    "branch": "HEAD",
    "description": "The purely functional package manager",
    "epoch": 2019,
    "id": "nix",
    "lastModified": 1559161142,
    "path": "/nix/store/2w2qla8735dbxah8gai8r1nsbf5x4f5d-source",
    "provides": {
      "checks": {
        "binaryTarball": {},
        "nix-copy-closure": {},
        "perlBindings": {},
        "remoteBuilds": {},
        "setuid": {}
      },
      "defaultPackage": {},
      "devShell": {},
      "hydraJobs": {},
      "packages": {
        "nix": {},
        "nix-perl-bindings": {}
      }
    },
    "revCount": 6955,
    "revision": "8cb24e04e8b6cc60e2504733afe78e0eadafcd98",
    "uri": "/home/eelco/Dev/nix"
  }

Fixes #2820.
2019-05-29 22:22:28 +02:00
Eelco Dolstra
a9d3524e1f
nix flake check: Use read-only mode if we're not building 2019-05-29 21:00:44 +02:00
Eelco Dolstra
0e32b32fa3
nix flake check: Check defaultPackage, devShell and packages 2019-05-29 20:57:08 +02:00
Eelco Dolstra
e0aaf05f4f
Add 'nix flake check' command
This evaluates all the 'provides' of a flake and builds the 'check'
attributes.
2019-05-29 17:25:41 +02:00
Eelco Dolstra
6e4a8c47f4
Put flake-related stuff in its own namespace 2019-05-29 15:31:07 +02:00
Eelco Dolstra
0f840483c7
Add date of last commit to SourceInfo
This is primarily useful for version string generation, where we need
a monotonically increasing number. The revcount is the preferred thing
to use, but isn't available for GitHub flakes (since it requires
fetching the entire history). The last commit timestamp OTOH can be
extracted from GitHub tarballs.
2019-05-29 10:10:36 +02:00
Eelco Dolstra
444786e6d3
nix flake info: Add missing newline 2019-05-28 14:11:19 +02:00
Eelco Dolstra
46294d60cd
printFlakeInfo: Separate JSON output 2019-05-28 14:01:57 +02:00
Eelco Dolstra
e7e7a03baf
nix flake deps: Remove --json flag for now
It doesn't produce valid JSON at the moment (but a concatenation of
JSON objects). Anyway we probably should merge this command info 'nix
flake info'.
2019-05-28 13:22:11 +02:00
Eelco Dolstra
fdf06ce72f
printFlakeInfo/printNonFlakeInfo: Factor out commonality 2019-05-28 13:21:06 +02:00
Eelco Dolstra
25e497bf9c
nix flake info/deps: Stop progress bar before printing output 2019-05-28 13:14:27 +02:00
Eelco Dolstra
dda4f7167b
Remove redundant resolvedRef fields since they're already in SourceInfo 2019-05-28 13:12:43 +02:00
Eelco Dolstra
6d7efcfaeb
Store SourceInfo in Flake and NonFlake
This deduplicates some shared fields. Factoring out the commonality is
useful in places like makeFlakeValue().
2019-05-28 13:06:43 +02:00
Eelco Dolstra
66f1d7ee95 Fetch the flake registry from the NixOS/flake-registry repo 2019-05-22 22:56:46 +02:00
Eelco Dolstra
e414bde6f9 Check the flake epoch
Closes #2883.
2019-05-22 14:31:40 +02:00
Eelco Dolstra
3e8ef9eb22 nix flake deps: Print flake dependencies 2019-05-22 14:04:18 +02:00
Eelco Dolstra
70136a9bf4 Move flake-related flags into a separate class
Also, rename --dont-save-lock-file to --no-save-lock-file and change
noRegistries to useRegistries.
2019-05-22 14:04:18 +02:00
Eelco Dolstra
2468672e30 Improve FlakeCommand
It now handles commonality like calling getFlake() and resolving
relative local flake refs.

Fixes #2822.
2019-05-22 14:03:28 +02:00
Nick Van den Broeck
ef6ae61503 Lockfile handling in resolveFlake is fixed 2019-05-17 14:50:10 +02:00
Nick Van den Broeck
98f20dee41 Give errors in resolveFlake
If DontUpdate but the lockfile isn't correct
2019-05-16 15:02:25 +02:00
Nick Van den Broeck
d9ad3723d5 Fixed issue 65
lockfile updating
2019-05-16 15:02:05 +02:00
Nick Van den Broeck
201f92e02c Fixed Flake data type and flake fetching 2019-05-07 05:57:08 +02:00
Eelco Dolstra
4588a6ff3c Merge remote-tracking branch 'tweag/flakeFlags' into flakes 2019-04-30 12:46:54 +02:00
Nick Van den Broeck
24b35bf9e7 Fixed issue #13 2019-04-30 11:26:45 +02:00
Nick Van den Broeck
35d1c95f7f Fix flag registry order 2019-04-30 11:04:31 +02:00
Nick Van den Broeck
d867e1804a Fix printing FlakeList 2019-04-25 11:43:16 +02:00
Eelco Dolstra
21d5abfc14 Merge remote-tracking branch 'tweag/flake-clone' into flakes 2019-04-24 12:47:35 +02:00
Eelco Dolstra
4fb594a375 Merge remote-tracking branch 'tweag/resolvedFlake' into flakes 2019-04-19 15:56:17 +02:00
Nick Van den Broeck
e51abb6631 Changed some names 2019-04-19 14:23:35 +02:00
Eelco Dolstra
50ec2bed9e nix flake info: Show revcount 2019-04-19 14:19:46 +02:00