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Author SHA1 Message Date
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 1c5067b9a7
Check hash 2019-06-04 20:35:35 +02:00
Eelco Dolstra 5fe7be2409
Rename dep -> input 
Also use nlohmann::json range-based for.
 2019-06-04 20:08:13 +02:00
Eelco Dolstra 9e99b5205c
Move LockFile and related types to a separate file 2019-06-04 20:01:21 +02:00
Eelco Dolstra 278114d559
Fix GC closure generation 2019-06-04 19:45:16 +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 653c4e439b
Fix clang compilation error 
https://hydra.nixos.org/build/94332344

https://stackoverflow.com/questions/46114214/lambda-implicit-capture-fails-with-variable-declared-from-structured-binding
 2019-06-03 21:51:06 +02:00
Nick Van den Broeck d9a6a75ed2 Made epochs more fine-grained 
Fixes #2894
 2019-06-03 14:47:47 +02:00
Eelco Dolstra 8abb8647a3
Automatically determine subdir for path flakes 
This means that in a flake in a subdirectory of a Git repo, you can
now do

  $ nix build

rather than the inconvenient

  $ nix build ../..?dir=foo/bar
 2019-05-31 21:52:02 +02:00
Eelco Dolstra ccb1bad612
Allow bare flakerefs as installables 
So now

  $ nix build blender-bin

works and builds the default package from that flake. You don't need
to add a colon at the end anymore.
 2019-05-31 21:42:23 +02:00
Eelco Dolstra 7adb10d29b
Fix reading the lockfile of a flake in a subdirectory 2019-05-31 20:12:59 +02:00
Eelco Dolstra 9169046e64
Add operator << for LockFile 
Useful for debugging.
 2019-05-31 20:10:56 +02:00
Eelco Dolstra b971e406de
Support 'dir' and other parameters in path flakerefs 2019-05-31 19:01:11 +02:00
Eelco Dolstra 094539ef4a
Rename requires -> inputs, provides -> outputs 
Issue #2828.
 2019-05-31 09:59:48 +02:00
Eelco Dolstra 6ae4437acb
Remove makeFlakeValue() 2019-05-29 15:44:48 +02:00
Eelco Dolstra 6e4a8c47f4
Put flake-related stuff in its own namespace 2019-05-29 15:31:07 +02:00
Eelco Dolstra c356d034f3
Make unsupported flake attributes a fatal error 2019-05-29 15:12:22 +02:00
Eelco Dolstra ae7b56cd9a
Get last commit time of github flakes 2019-05-29 10:10:40 +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 ecee759b80
callFlake(): Emit source info attributes for non-flake dependencies 2019-05-28 14:01:08 +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 4846304541
Rename contentHash -> narHash for consistency 2019-05-28 13:08:40 +02:00
Eelco Dolstra 894e007445
Move hash into SourceInfo and rename to narHash to avoid ambiguity 2019-05-28 13:07:15 +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 de36cf3db9
Merge branch 'nonFlakeRequiresTest' of https://github.com/CSVdB/nix into flakes 2019-05-28 12:05:11 +02:00
Nick Van den Broeck 4d030a8d96 Added nonFlakeRequires test 
Fixes #2888
 2019-05-28 10:51:45 +02:00
Nick Van den Broeck 6fb7545fa1 Fixed relative path parsing 
Fixed #2821
 2019-05-28 10:17:28 +02:00
Eelco Dolstra 90fe1dfd2f Register flake source trees as GC roots 
This ensures that flakes don't get garbage-collected, which is
important to get nix-channel-like behaviour.

For example, running

  $ nix build hydra:

will create a GC root

  ~/.cache/nix/flake-closures/hydra -> /nix/store/xarfiqcwa4w8r4qpz1a769xxs8c3phgn-flake-closure

where the contents/references of the linked file in the store are the
flake source trees used by the 'hydra' flake:

  /nix/store/n6d5f5lkpfjbmkyby0nlg8y1wbkmbc7i-source
  /nix/store/vbkg4zy1qd29fnhflsv9k2j9jnbqd5m2-source
  /nix/store/z46xni7d47s5wk694359mq9ay353ar94-source

Note that this in itself is not enough to allow offline use; the
fetcher for the flakeref (e.g. fetchGit or downloadCached) must not
fail if it cannot fetch the latest version of the file, so long as it
knows a cached version.

Issue #2868.
 2019-05-23 23:53:25 +02:00
Eelco Dolstra 6b77bfc28d FlakeRef::to_string(): Check round trip 2019-05-23 23:39:58 +02:00
Eelco Dolstra 6e984431dd fetchGit: Don't barf if we can't update our Git clone 
Instead print a warning that we're continuing with the most recently
fetched version.
 2019-05-23 23:38:40 +02:00
Eelco Dolstra f0d6d67af9 Prevent the global registry from being GC'ed 
Issue #2868.
 2019-05-22 23:43:58 +02:00
Eelco Dolstra df3f5a78d5 Refactor downloadCached() interface 2019-05-22 23:36:29 +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 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
Eelco Dolstra 5990b86391 Use warn(), tweak messages 2019-05-21 15:03:54 +02:00
Eelco Dolstra 20a1a65d37 Only rewrite the lockfile if it changed 
This removes spurious warnings about failure to write the lockfile.
 2019-05-21 14:55:43 +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
Eelco Dolstra 5c34d66538 Make flakes work with 'nix build --store ...' 
It was getting confused between logical and real store paths.

Also, make fetchGit and fetchMercurial update allowedPaths properly.

(Maybe the evaluator, rather than the caller of the evaluator, should
apply toRealPath(), but that's a bigger change.)
 2019-05-15 15:38:24 +02:00
Nick Van den Broeck 4c9ebd20d7 One FIXME was already fixed 2019-05-15 08:10:46 +02:00
Nick Van den Broeck d209bdcd08 Fixed issue #47 
Content hashes
 2019-05-09 14:27:55 +02:00
Eelco Dolstra 8fc1c3f413
Fix assertion failure in FlakeRef::to_string() 
Fixes

  $ nix build
  nix: src/libexpr/primops/flakeref.cc:169: std::__cxx11::string nix::FlakeRef::to_string() const: Assertion `!rev' failed.
  Aborted

e.g. when flake.nix doesn't exist.

Also use gitRev().
 2019-05-08 22:09:18 +02:00
Eelco Dolstra 455aa8d9ea
Add newline at end of lockfile 
Suggested by @grahamc.
 2019-05-08 18:28:01 +02:00
Eelco Dolstra 54e54db2e2
Merge remote-tracking branch 'tweag/flake-test' into flakes 2019-05-08 13:55:55 +02:00
Eelco Dolstra 77e1f9010c
Export missing rev/shortRev attributes 2019-05-08 13:38:32 +02:00
Eelco Dolstra 9d07c3717b
updateLockFile: Do "git add" in a slightly nicer way 
"--intent-to-add" ensures the change shows up in "git diff".
 2019-05-08 13:26:20 +02:00
Eelco Dolstra ddd42b7e94 Fix immutable flakeref construction 
We were appending ref/revs incorrectly for the IsGit case (by
appending /<ref>/<rev> rather than ?ref=<ref>&rev=<rev).
 2019-05-07 23:32:09 +02:00