Commit graph

633 commits

Author SHA1 Message Date
Matthew Kenigsberg 5d8504b978 rename nix run to nix shell and nix app to nix run 2020-04-29 15:45:10 -06:00
Eelco Dolstra 9570036146 nix copy: Build derivations
Fixes

  $ nix copy .#hydraJobs.vendoredCrates --to /tmp/nix
  error: path '/nix/store/...' is not valid
2020-04-29 15:51:45 +02:00
Eelco Dolstra 9c4e05766b nix copy: Move --from / --to check
This means you now get an error message *before* stuff gets built:

  $ nix copy .#hydraJobs.vendoredCrates
  error: you must pass '--from' and/or '--to'
  Try 'nix --help' for more information.
2020-04-29 15:50:59 +02:00
Eelco Dolstra 70bcd6a55c Evaluation cache: Don't barf in read-only mode
Fixes

  $ nix copy
  warning: Git tree '/home/eelco/Dev/nix-flake' is dirty
  nix: src/nix/installables.cc:348: std::tuple<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nix::FlakeRef, nix::InstallableValue::DerivationInfo> nix::InstallableFlake::toDerivation(): Assertion `state->store->isValidPath(drvPath)' failed.
  Aborted (core dumped)
2020-04-29 15:42:53 +02:00
Eelco Dolstra 5ada0831cf Merge remote-tracking branch 'origin/master' into flakes 2020-04-29 13:32:27 +02:00
Matthew Kenigsberg 6d40fe573c rename to NIX_GCROOT 2020-04-28 11:18:54 -06:00
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 829dcb35d5 flake-template.nix: Add defaultPackage 2020-04-27 22:52:49 +02:00
Matthew Kenigsberg 9e95b95a5d comment 2020-04-27 13:18:26 -06:00
Matthew Kenigsberg a3bc695e7d Set GCROOT to store path to prevent garbage collection 2020-04-27 11:22:20 -06:00
Eelco Dolstra b51dff431c Improve error message when an argument is not a flake 2020-04-27 18:55:20 +02:00
Eelco Dolstra b4e23dcd9e nix search: Search legacyPackages recursively 2020-04-27 16:29:26 +02:00
Eelco Dolstra 0469795978 nix search: Show version 2020-04-24 14:42:17 +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 a6c4fd044c Hide progress bar on exit 2020-04-17 01:13:13 +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 c277231b7d Use RootValue 2020-04-16 18:33:34 +02:00
Eelco Dolstra f89349f07e Merge remote-tracking branch 'origin/master' into flakes 2020-04-16 18:33:10 +02:00
Eelco Dolstra 0858738355 Merge remote-tracking branch 'origin/master' into flakes 2020-04-16 18:27:37 +02:00
Eelco Dolstra efaffaa9d1 Use Logger::stdout()
(cherry picked from commit 8f41847394)
2020-04-16 18:14:01 +02:00
Eelco Dolstra 67a5941472 Logger: Add method for writing to stdout
Usually this just writes to stdout, but for ProgressBar, we need to
clear the current line, write the line to stdout, and then redraw the
progress bar.

(cherry picked from commit 696c026006)
2020-04-16 18:03:38 +02:00
Eelco Dolstra fcd048a526 Use RootValue 2020-04-16 18:02:59 +02:00
Eelco Dolstra 8f41847394 Use Logger::stdout() 2020-04-16 13:47:59 +02:00
Eelco Dolstra 696c026006 Logger: Add method for writing to stdout
Usually this just writes to stdout, but for ProgressBar, we need to
clear the current line, write the line to stdout, and then redraw the
progress bar.
2020-04-16 13:47:59 +02:00
Andreas Rammhold d2c371927e SourceExprCommand: allocate the vSourceExpr via uncollectable memory
Previously the memory would occasionally be collected during eval since
the GC doesn't consider the member variable as alive / doesn't scan the
region of memory where the pointer lives.

By using the traceable_allocator<T> allocator provided by Boehm GC we
can ensure the memory isn't collected. It should be properly freed when
SourceExprCommand goes out of scope.
2020-04-13 21:23:54 +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 d103c79144
Merge remote-tracking branch 'origin/master' into flakes 2020-04-09 15:54:21 +02:00
Nikola Knezevic f5095594e7 datatransfer.{cc,hh} -> filetransfer.{cc,hh} 2020-04-08 22:26:57 +02:00
Nikola Knezevic c330109bfa DataTransfer -> FileTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic a0c5931208 actDownload -> actDataTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic cd391206e6 {get,make,new}Downloader -> DataTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic e5cc53beec DownloadSettings -> DataTransferSettings 2020-04-08 22:26:57 +02:00
Nikola Knezevic 741e9012d3 Rename src/lib/download.* to src/lib/datatransfer.* 2020-04-08 22:26:57 +02:00
Nikola Knezevic 65ef57e0cb DownloadRequest -> DataTransferRequest 2020-04-08 22:26:57 +02:00
Eelco Dolstra 5449ff7d8a
Merge pull request #3477 from Ninlives/nix-run-using-env
`nix run` using $SHELL as default command
2020-04-08 19:35:39 +02:00
mlatus 9d04b5da17 nix run using $SHELL as default command 2020-04-07 20:29:40 +08:00
Eelco Dolstra 462421d345 Backport libfetchers from the flakes branch
This provides a pluggable mechanism for defining new fetchers. It adds
a builtin function 'fetchTree' that generalizes existing fetchers like
'fetchGit', 'fetchMercurial' and 'fetchTarball'. 'fetchTree' takes a
set of attributes, e.g.

  fetchTree {
    type = "git";
    url = "https://example.org/repo.git";
    ref = "some-branch";
    rev = "abcdef...";
  }

The existing fetchers are just wrappers around this. Note that the
input attributes to fetchTree are the same as flake input
specifications and flake lock file entries.

All fetchers share a common cache stored in
~/.cache/nix/fetcher-cache-v1.sqlite. This replaces the ad hoc caching
mechanisms in fetchGit and download.cc (e.g. ~/.cache/nix/{tarballs,git-revs*}).

This also adds support for Git worktrees (c169ea5904).
2020-04-07 09:03:14 +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