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Author SHA1 Message Date
Eelco Dolstra 415fc233e3 For nixpkgs.<attr>, use legacyPackages 
This makes commands like 'nix run nixpkgs.chromium' work again.
 2019-06-13 14:07:25 +02:00
Eelco Dolstra 06010eaf19 Fix fetchTarball with chroot stores 
Fixes #2405.
 2019-06-12 10:34:13 +02:00
Eelco DolstraandGitHub 506b6263ef Merge pull request #2939 from NixOS/github-test 
Add tests for GitHub flakes
 2019-06-12 09:42:22 +02:00
Eelco Dolstra e2d7569685 Add a test for GitHub flakes 
Fixes #2889.
 2019-06-11 21:46:46 +02:00
Eelco Dolstra 69b047f4ce writeRegistry(): Write correct version 2019-06-11 21:32:57 +02:00
Eelco DolstraandGitHub c4d740115e Merge pull request #2930 from NixOS/eval-cache 
Flake evaluation cache
 2019-06-11 12:12:59 +02:00
Eelco Dolstra c47d2dac6c Disable EvalCache in impure mode 2019-06-07 22:38:39 +02:00
Eelco Dolstra 6644b6099b Add flake evaluation cache 
This exploits the hermetic nature of flake evaluation to speed up
repeated evaluations of a flake output attribute.

For example (doing 'nix build' on an already present package):

  $ time nix build nixpkgs:firefox

  real    0m1.497s
  user    0m1.160s
  sys     0m0.139s

  $ time nix build nixpkgs:firefox

  real    0m0.052s
  user    0m0.038s
  sys     0m0.007s

The cache is ~/.cache/nix/eval-cache-v1.sqlite, which has entries like

  INSERT INTO Attributes VALUES(
    X'92a907d4efe933af2a46959b082cdff176aa5bfeb47a98fabd234809a67ab195',
    'packages.firefox',
    1,
    '/nix/store/pbalzf8x19hckr8cwdv62rd6g0lqgc38-firefox-67.0.drv /nix/store/g6q0gx0v6xvdnizp8lrcw7c4gdkzana0-firefox-67.0 out');

where the hash 92a9... is a fingerprint over the flake store path and
the contents of the lockfile. Because flakes are evaluated in pure
mode, this uniquely identifies the evaluation result.
 2019-06-07 22:25:48 +02:00
Eelco DolstraandGitHub 671f16aee0 Merge pull request #2920 from NixOS/lazy-flakes 
Lazy flake input fetching
 2019-06-06 12:28:20 +02:00
Eelco Dolstra 54aff8430c Move flake-related stuff to src/libexpr/flake 2019-06-05 16:51:54 +02:00
Eelco Dolstra 1b05792988 Shorter syntax for referencing flake outputs 
Fixes #2819.
 2019-06-04 22:35:43 +02:00
Eelco Dolstra ce225615c3 Eliminate duplicate fetching of the top-level flake 2019-06-04 21:10:53 +02:00
Eelco Dolstra 087530dec4 Add comments 2019-06-04 21:07:55 +02:00
Eelco Dolstra 4d31cf83f2 Update flake.lock 2019-06-04 20:57:18 +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 1c5067b9a7 Check hash 2019-06-04 20:35:35 +02:00
Eelco Dolstra 45b5c606ac Don't register invalid paths as GC roots 
Unfortunately this doesn't work. Maybe we should keep separate roots
for each path.
 2019-06-04 20:34:08 +02:00
Eelco Dolstra 4ec1a9ab40 Fix test 2019-06-04 20:33:49 +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 c7c562416c shell.nix: Use clang by default 
Clang compiles faster (121s vs 156s for GCC 7) so it's a bit nicer for
development.
 2019-06-04 13:44:12 +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
Eelco DolstraandGitHub 412684f9dc Merge pull request #2914 from CSVdB/finegrainedEpochs 
Made epochs more fine-grained
 2019-06-03 15:36:43 +02:00
Nick Van den Broeck d9a6a75ed2 Made epochs more fine-grained 
Fixes #2894
 2019-06-03 14:47:47 +02:00
Eelco DolstraandGitHub 507c150034 Merge pull request #2909 from NixOS/flake-apps 
Add 'nix app' command
 2019-06-03 09:34:36 +02:00
Eelco Dolstra 5fbd9fee0b Add 'nix app' command 
This is like 'nix run', except that the command to execute is defined
in a flake output, e.g.

  defaultApp = {
    type = "app";
    program = "${packages.blender_2_80}/bin/blender";
  };

Thus you can do

  $ nix app blender-bin

to start Blender from the 'blender-bin' flake.

In the future, we can extend this with sandboxing. (For example we
would want to be able to specify that Blender should not have network
access by default and should only have access to certain paths in the
user's home directory.)
 2019-06-03 09:27:03 +02:00
Eelco Dolstra fb692e5f7b Bindings: Add convenience method for requiring an attribute 2019-06-03 09:27:03 +02:00
Eelco Dolstra a2f86ac647 Merge remote-tracking branch 'origin/master' into flakes 2019-06-03 09:22:19 +02:00
Eelco DolstraandGitHub 95bdfaa8bd Merge pull request #2907 from NixOS/subdir 
Subdirectory improvements
 2019-06-03 09:21:31 +02:00
Eelco Dolstra aec545c20b Fix segfault in builtin fetchurl with hashed mirrors + SRI hashes 2019-06-01 15:27:43 +02:00
Eelco DolstraandGitHub 5450af5d0d Merge pull request #2910 from worldofpeace/funding 
Add .github/FUNDING.yml
 2019-06-01 09:56:48 +02:00
worldofpeace 2d34028b1e Add .github/FUNDING.yml 2019-05-31 22:19:46 -04:00
Eelco Dolstra 15f241775a Doh 2019-05-31 23:21:53 +02:00
Eelco Dolstra 8cb3bbd504 Fix handling of bare flakerefs containing a colon 2019-05-31 22:17:39 +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 63c5c91cc0 Show hash mismatch warnings in SRI format 2019-05-31 18:48:28 +02:00
Eelco DolstraandGitHub 134942f56a Merge pull request #2904 from NixOS/flake-terminology 
Rename requires -> inputs, provides -> outputs
 2019-05-31 10:00:51 +02:00
Eelco Dolstra 094539ef4a Rename requires -> inputs, provides -> outputs 
Issue #2828.
 2019-05-31 09:59:48 +02:00
Eelco DolstraandGitHub 65e88694c2 Merge pull request #2903 from NixOS/check-flake 
Add "nix flake check"
 2019-05-31 09:57:04 +02:00
Eelco DolstraandGitHub 2b62928905 Merge pull request #2905 from ln-nl/patch-1 
release-common: fix build with `config.allowAliases = false`
 2019-05-31 09:56:47 +02:00
ln-nlandGitHub 3b1cc8b0cb release-common: fix build with config.allowAliases = false 
```sh
> nix build -f release.nix build.x86_64-linux
error: undefined variable 'docbook5_xsl' at /vcs/nix/release-common.nix:45:7
```
 2019-05-30 18:08:33 +03:00
Eelco DolstraandGitHub d8abee9bc6 Merge pull request #2892 from johannes-climacus/master 
Replace `type` with `command -v` in install script
 2019-05-30 14:15:23 +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 3488fa7c6c Hack: Use legacyPackages from Nixpkgs 
Nixpkgs doesn't provide a clean "packages" set yet, so until that's
the case, look for packages in "legacyPackages" as well.
 2019-05-29 22:22:28 +02:00