Commit graph

561 commits

Author SHA1 Message Date
Eelco Dolstra ce27920936 Add start of 'nix profile' command 2019-10-22 00:22:15 +02:00
Eelco Dolstra 91a88f3acb Fix "nixpkgs." compatibility 2019-10-21 23:38:07 +02:00
Eelco Dolstra cb1a79a96a Fix build 2019-10-21 18:58:38 +02:00
Eelco Dolstra 9a18f544ac Merge remote-tracking branch 'origin/master' into flakes 2019-10-21 18:48:21 +02:00
Eelco Dolstra 629b9b0049 Mark content-addressable paths with references as experimental 2019-10-21 18:05:31 +02:00
Eelco Dolstra e68736936a nix make-content-addressable: Add examples 2019-10-21 17:58:17 +02:00
Eelco Dolstra d77970fde7 Fix build 2019-10-21 17:49:16 +02:00
Eelco Dolstra 0abb3ad537 Allow content-addressable paths to have references
This adds a command 'nix make-content-addressable' that rewrites the
specified store paths into content-addressable paths. The advantage of
such paths is that 1) they can be imported without signatures; 2) they
can enable deduplication in cases where derivation changes do not
cause output changes (apart from store path hashes).

For example,

  $ nix make-content-addressable -r nixpkgs.cowsay
  rewrote '/nix/store/g1g31ah55xdia1jdqabv1imf6mcw0nb1-glibc-2.25-49' to '/nix/store/48jfj7bg78a8n4f2nhg269rgw1936vj4-glibc-2.25-49'
  ...
  rewrote '/nix/store/qbi6rzpk0bxjw8lw6azn2mc7ynnn455q-cowsay-3.03+dfsg1-16' to '/nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16'

We can then copy the resulting closure to another store without
signatures:

  $ nix copy --trusted-public-keys '' ---to ~/my-nix /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16

In order to support self-references in content-addressable paths,
these paths are hashed "modulo" self-references, meaning that
self-references are zeroed out during hashing. Somewhat annoyingly,
this means that the NAR hash stored in the Nix database is no longer
necessarily equal to the output of "nix hash-path"; for
content-addressable paths, you need to pass the --modulo flag:

  $ nix path-info --json /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16  | jq -r .[].narHash
  sha256:0ri611gdilz2c9rsibqhsipbfs9vwcqvs811a52i2bnkhv7w9mgw

  $ nix hash-path --type sha256 --base32 /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16
  1ggznh07khq0hz6id09pqws3a8q9pn03ya3c03nwck1kwq8rclzs

  $ nix hash-path --type sha256 --base32 /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16 --modulo iq6g2x4q62xp7y7493bibx0qn5w7xz67
  0ri611gdilz2c9rsibqhsipbfs9vwcqvs811a52i2bnkhv7w9mgw
2019-10-21 17:47:24 +02:00
Eelco Dolstra aabf5c86c9
Add experimental-features setting
Experimental features are now opt-in. There is currently one
experimental feature: "nix-command" (which enables the "nix"
command. This will allow us to merge experimental features more
quickly, without committing to supporting them indefinitely.

Typical usage:

$ nix build --experimental-features 'nix-command flakes' nixpkgs#hello

(cherry picked from commit 8e478c2341,
without the "flakes" feature)
2019-10-21 13:34:44 +02:00
Eelco Dolstra 389a2cebed
SourceExprCommand::getSourceExpr(): Allocate more space
Fixes #3140.
2019-10-21 13:14:39 +02:00
Eelco Dolstra 8426d99b0e Fix InstallableFlake::what() 2019-10-20 16:43:00 +02:00
Eelco Dolstra 8e478c2341
Add experimental-features setting
Experimental features are now opt-in. There are currently two
experimental features: "nix-command" (which enables the "nix"
command), and "flakes" (which enables support for flakes). This will
allow us to merge experimental features more quickly, without
committing to supporting them indefinitely.

Typical usage:

$ nix build --experimental-features 'nix-command flakes' nixpkgs#hello
2019-10-16 17:49:01 +02:00
Eelco Dolstra 14a89aa8cd Fix 'nix flake init' 2019-10-15 19:53:29 +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 0bc8f1669d Move code around 2019-10-14 14:40:16 +02:00
Eelco Dolstra 5446eae949
Merge remote-tracking branch 'origin/master' into flakes 2019-10-10 15:07:59 +02:00
Eelco Dolstra 95cf23ee7c
nix verify: Fix uninitialized variable 2019-10-10 15:03:01 +02:00
Eelco Dolstra e99bb91217
Merge remote-tracking branch 'origin/master' into flakes 2019-10-10 12:54:37 +02:00
Eelco Dolstra 4331eeb13d
Filter ANSI escape sequences in -L output
Otherwise, builds like NixOS VM tests may leave the terminal in a
weird state and do resets.
2019-10-09 23:25:06 +02:00
Eelco Dolstra 99b73fb507
OCD performance fix: {find,count}+insert => insert 2019-10-09 16:06:29 +02:00
Eelco Dolstra e6e61f0a54
getSourceExpr(): Handle channels
Fixes #1892.
Fixes #1865.
Fixes #3119.
2019-10-09 15:36:51 +02:00
Eelco Dolstra 7c74f075f4
nix search: Don't quietly ignore errors 2019-10-09 14:46:58 +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
Emilio Karakey d24bfe29a1 deleted comment 2019-10-07 18:28:10 -05:00
Sam Doshi 6f6cb5e388 nix search: remove verbose example 2019-10-07 11:40:42 +01:00
Benjamin Hipple c5bd564c69 nix doctor: add more logging output to checks
When running nix doctor on a healthy system, it just prints the store URI and
nothing else. This makes it unclear whether the system is in a good state and
what check(s) it actually ran, since some of the checks are optional depending
on the store type.

This commit updates nix doctor to print an colored log message for every check
that it does, and explicitly state whether that check was a PASS or FAIL to make
it clear to the user whether the system passed its checkup with the doctor.

Fixes #3084
2019-10-06 16:57:57 -04:00
Eelco Dolstra 780c1a8f27
nix dev-shell: Ignore $NIX_LOG_FD 2019-10-02 10:52:56 +02:00
Eelco Dolstra 9b9de3a5e3
nix dev-shell: Improve environment handling
Only variables that were marked as exported are exported in the dev
shell. Also, we no longer try to parse the function section of the env
file, fixing

  $ nix dev-shell
  error: shell environment '/nix/store/h7ama3kahb8lypf4nvjx34z06g9ncw4h-nixops-1.7pre20190926.4c7acbb-env' has unexpected line '/^[a-z]?"""/ {'
2019-09-27 17:01:25 +02:00
Eelco Dolstra bd79c1f6f6 Don't catch exceptions by value
(cherry picked from commit 893be6f5e3)
2019-09-22 21:56:56 +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 893be6f5e3 Don't catch exceptions by value 2019-09-22 21:29:33 +02:00
Eelco Dolstra 14d3f45009 Simplify 2019-09-20 16:06:49 +02:00
Eelco Dolstra 5a0e98d1e5 Use '#' instead of ':' to separate flakeref and attrpath
This is less ambiguous.
2019-09-20 16:01:40 +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 2dbd69dbf4 nix repl: Run in impure mode 2019-09-02 23:04:27 +02:00
Eelco Dolstra c693f80b81
Shut up some clang warnings 2019-09-02 17:43:27 +02:00
Eelco Dolstra 61fdb16aac
Improve error message when a directory is not a flake
So you now get

  $ nix build
  error: path '.' is not a flake (because it does not reference a Git repository)

rather than

  $ nix build
  error: unsupported argument '.'
2019-09-02 17:35:35 +02:00
Eelco Dolstra 5ec2a1ed82
nix dev-shell --profile: Support relative path 2019-09-02 15:59:19 +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 30ccf4e52d Turn flake inputs into an attrset
Instead of a list, inputs are now an attrset like

  inputs = {
    nixpkgs.uri = github:NixOS/nixpkgs;
  };

If 'uri' is omitted, than the flake is a lookup in the flake registry, e.g.

  inputs = {
    nixpkgs = {};
  };

but in that case, you can also just omit the input altogether and
specify it as an argument to the 'outputs' function, as in

  outputs = { self, nixpkgs }: ...

This also gets rid of 'nonFlakeInputs', which are now just a special
kind of input that have a 'flake = false' attribute, e.g.

  inputs = {
    someRepo = {
      uri = github:example/repo;
      flake = false;
    };
  };
2019-08-30 16:27:51 +02:00
Eelco Dolstra ebc4dae517 Merge remote-tracking branch 'origin/master' into flakes 2019-08-29 16:11:38 +02:00
Eelco Dolstra e5b397b2c7 Merge branch 'test-sandboxing' of https://github.com/matthewbauer/nix 2019-08-27 20:58:47 +02:00
Eelco Dolstra 662db921e2
nix dev-shell: Set dontAddDisableDepTrack 2019-08-09 18:51:52 +02:00
Eelco Dolstra 1d750e0587
Merge remote-tracking branch 'origin/master' into flakes 2019-08-08 15:49:13 +02:00
regnat 7c5596734f
Add a post-build-hook
Passing `--post-build-hook /foo/bar` to a nix-* command will cause
`/foo/bar` to be executed after each build with the following
environment variables set:

    DRV_PATH=/nix/store/drv-that-has-been-built.drv
    OUT_PATHS=/nix/store/...build /nix/store/...build-bin /nix/store/...build-dev

This can be useful in particular to upload all the builded artifacts to
the cache (including the ones that don't appear in the runtime closure
of the final derivation or are built because of IFD).

This new feature prints the stderr/stdout output to the `nix-build`
and `nix build` client, and the output is printed in a Nix 2
compatible format:

    [nix]$ ./inst/bin/nix-build ./test.nix
    these derivations will be built:
      /nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv
    building '/nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv'...
    hello!
    bye!
    running post-build-hook '/home/grahamc/projects/github.com/NixOS/nix/post-hook.sh'...
    post-build-hook: + sleep 1
    post-build-hook: + echo 'Signing paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: Signing paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: + sleep 1
    post-build-hook: + echo 'Uploading paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: Uploading paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: + sleep 1
    post-build-hook: + printf 'very important stuff'
    /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation

    [nix-shell:~/projects/github.com/NixOS/nix]$ ./inst/bin/nix build -L -f ./test.nix
    my-example-derivation> hello!
    my-example-derivation> bye!
    my-example-derivation (post)> + sleep 1
    my-example-derivation (post)> + echo 'Signing paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> Signing paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> + sleep 1
    my-example-derivation (post)> + echo 'Uploading paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> Uploading paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> + sleep 1
    my-example-derivation (post)> + printf 'very important stuff'
    [1 built, 0.0 MiB DL]

Co-authored-by: Graham Christensen <graham@grahamc.com>
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2019-08-02 10:48:15 -04:00
Eelco Dolstra 336afe4d5f
nix dev-shell: Set IN_NIX_SHELL in the derivation
This ensures that stdenv / setup hooks take $IN_NIX_SHELL into
account. For example, stdenv only sets
NIX_SSL_CERT_FILE=/no-cert-file.crt if we're not in a shell.
2019-07-26 20:09:44 +02:00
Matthew Bauer d171090530 Disable CLONE_NEWUSER when it’s unavailable
Some kernels disable "unpriveleged user namespaces". This is
unfortunate, but we can still use mount namespaces. Anyway, since each
builder has its own nixbld user, we already have most of the benefits
of user namespaces.
2019-07-25 14:42:25 -04:00
Eelco Dolstra aa82f8b2d2
nix dev-shell: Make it possible to enter a profile
For example:

  $ nix dev-shell --profile /tmp/my-shell dwarffs
  (later)
  $ nix dev-shell /tmp/my-shell
2019-07-12 16:36:34 +02:00
Eelco Dolstra 731bc65ec0
Refactor a bit 2019-07-12 16:16:27 +02:00
Eelco Dolstra 7ba928116e
nix dev-shell: Add --profile flag
This is useful to prevent the shell environment from being
garbage-collected.
2019-07-12 16:10:58 +02:00
Eelco Dolstra 990b5b2dcf
nix build: Add '--profile' flag
This replaces 'nix-env --set'. For example:

  $ nix build --profile /nix/var/nix/profiles/system \
      ~/Misc/eelco-configurations:nixosConfigurations.vyr.config.system.build.toplevel

updates the NixOS system profile from a flake.

This could have been a separate command (e.g. 'nix set-profile') but
1) '--profile' is pretty similar to '--out-link'; and 2) '--profile'
could be useful for other command (like 'nix dev-shell').
2019-07-12 15:32:17 +02:00
Eelco Dolstra ad42a78469
Rename 'epoch' -> 'edition' 2019-07-11 13:54:53 +02:00
Eelco Dolstra 4205234f26
Merge remote-tracking branch 'origin/master' into flakes 2019-07-11 13:13:19 +02:00
Eelco Dolstra aa739e7839
nix copy: Rename --substitute to --substitute-on-destination
'--substitute' was being shadowed by the regular '--substitute' (the
short-hand for '--option substitute true').

Fixes #2983.
2019-07-10 11:28:37 +02:00
Eelco Dolstra cc218b15ba Merge remote-tracking branch 'origin/master' into flakes 2019-07-06 21:06:22 +02:00
Niklas Hambüchen a96006d97f Get BOOST_LDFLAGS from autoconf, fix Ubuntu 16.04 build.
Our use of boost::coroutine2 depends on -lboost_context,
which in turn depends on `-lboost_thread`, which in turn depends
on `-lboost_system`.

I suspect that this builds on nix only because of low-level hacks
like NIX_LDFLAGS.

This commit passes the proper linker flags, thus fixing bootstrap
builds on non-nix distributions like Ubuntu 16.04.

With these changes, I can build Nix on Ubuntu 16.04 using:

    ./bootstrap.sh
    ./configure --prefix=$HOME/editline-prefix \
      --disable-doc-gen \
      CXX=g++-7 \
      --with-boost=$HOME/boost-prefix \
      EDITLINE_CFLAGS=-I$HOME/editline-prefix/include \
      EDITLINE_LIBS=-leditline \
      LDFLAGS=-L$HOME/editline-prefix/lib
    make

where

* g++-7 comes from gcc-7 from
  https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test,
* editline 1.14 from https://github.com/troglobit/editline/releases/tag/1.14.0
	was installed into `$HOME/editline-prefix`
  (because Ubuntu 16.04's `editline` is too old to have the function nix uses),
* boost 1.66 from
	https://www.boost.org/doc/libs/1_66_0/more/getting_started/unix-variants.html
	was installed into $HOME/boost-prefix (because Ubuntu 16.04 only has 1.58)
2019-07-03 04:32:25 +02:00
Niklas Hambüchen d203c554fa Fix C++ compatibility with older editline versions.
For example, Ubuntu 16.04 and many similar long-term-support distros
have older versions.
2019-07-03 04:32:25 +02:00
Eelco Dolstra 6847c92788
Fix macOS build failure
Issue #2976.
2019-06-28 15:38:23 +02:00
Eelco Dolstra e5f881a7e4
Merge remote-tracking branch 'origin/master' into flakes 2019-06-26 10:19:28 +02:00
Eelco Dolstra 324a5dc92f
ProgressBar: Fix updating
'updateCV.notify_one()' does nothing if the update thread is not
waiting for updateCV (in particular this happens when it is sleeping
on quitCV). So also set a variable to ensure that the update isn't
lost.
2019-06-25 21:59:20 +02:00
Eelco Dolstra 09dde33c19
Automatically use --no-net if there are no network interfaces
(cherry picked from commit 04a5976996)
2019-06-25 12:45:59 +02:00
Eelco Dolstra 5600b070a7
Add "warning" verbosity level
This ensures that "nix" shows warnings. Previously these were hidden
because they were at "info" level.

(cherry picked from commit 615a9d031d)
2019-06-25 12:44:17 +02:00
Eelco Dolstra 96c6b08ed7 nix doctor: Fix typo 2019-06-23 22:19:14 +02:00
Eelco Dolstra d4fe9daed6
Simplify getFlake() / fetchFlake() logic 2019-06-21 19:04:58 +02:00
Eelco Dolstra d132d057a8
Handle store symlinks in flake directories
E.g. 'nix path-info ./result' inside a flake directory now works
again.
2019-06-21 15:29:05 +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 3871131308
Merge pull request #2949 from NixOS/no-net
Add --no-net flag
2019-06-18 15:59:42 +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 0d69f7f3f0
nix app: Accept arguments
Example:

  $ nix app blender-bin -- --version
  Blender 2.80 (sub 74)
2019-06-17 17:05:37 +02:00
Eelco Dolstra 2467c98375
nix app: Search for installable in the 'apps' output
I.e. you can write

  $ nix app blender-bin:blender_2_80

which is equivalent to

  $ nix app blender-bin:apps.blender_2_80
2019-06-17 16:58:59 +02:00
Eelco Dolstra d6c4fe55db
Merge remote-tracking branch 'origin/master' into flakes 2019-06-17 14:45:12 +02:00
Eelco Dolstra 04a5976996
Automatically use --no-net if there are no network interfaces 2019-06-17 10:14:27 +02:00
Eelco Dolstra 615a9d031d
Add "warning" verbosity level
This ensures that "nix" shows warnings. Previously these were hidden
because they were at "info" level.
2019-06-17 09:12:03 +02:00
Eelco Dolstra 26bc876ae6
nix: Add -L alias for --print-build-logs 2019-06-15 16:45:00 +02:00
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 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 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 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 5fe7be2409
Rename dep -> input
Also use nlohmann::json range-based for.
2019-06-04 20:08:13 +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
Nick Van den Broeck d9a6a75ed2 Made epochs more fine-grained
Fixes #2894
2019-06-03 14:47:47 +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 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 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 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 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
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 6636808e90
Merge remote-tracking branch 'origin/master' into flakes 2019-05-29 12:36:44 +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 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 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
Eelco Dolstra 4d829916e7
Merge pull request #2800 from flokli/progress-bar-hide-unknown-expected
progress-bar: hide expected if expected is 0 (unknown)
2019-05-21 13:29:28 +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
Eelco Dolstra 0f5032c5a4 Merge remote-tracking branch 'origin/master' into flakes 2019-05-15 20:51:29 +02:00
Eelco Dolstra 8f6c72faee
Merge pull request #2810 from NixOS/print-build-logs
nix: Add --print-build-logs flag
2019-05-15 20:38:38 +02:00
Eelco Dolstra 66b8a62101 nix: Add --print-build-logs flag
This causes 'nix' to print build log output to stderr rather than
showing the last log line in the progress bar. Log lines are prefixed
by the name of the derivation (minus the version string), e.g.

  binutils> make[1]: Leaving directory '/build/binutils-2.31.1'
  binutils-wrapper> unpacking sources
  binutils-wrapper> patching sources
  ...
  binutils-wrapper> Using dynamic linker: '/nix/store/kr51dlsj9v5cr4n8700jliyz8v5b2q7q-bootstrap-stage0-glibc/lib/ld-linux-x86-64.so.2'
  bootstrap-stage2-gcc-wrapper> unpacking sources
  ...
  linux-headers> unpacking sources
  linux-headers> unpacking source archive /nix/store/8javli69jhj3bkql2c35gsj5vl91p382-linux-4.19.16.tar.xz
2019-05-15 17:33:56 +02:00
Florian Klink 6ade7ec022 progress-bar: hide expected if expected is 0 (unknown)
Sometimes, "expected" can be "0", but in fact means "unknown".

This is for example the case when downloading a file while the http
server doesn't send the `Content-Length` header, like when running `nix
build` pointing to a nixpkgs checkout streamed from GitHub:

⇒  nix build -f https://github.com/NixOS/nixpkgs/archive/master.tar.gz hello
[1.8/0.0 MiB DL] downloading 'https://github.com/NixOS/nixpkgs/archive/master.tar.gz'

In that case, don't show that weird progress bar, but only the (slowly
increasing) downloaded size ("done").

⇒  nix build -f https://github.com/NixOS/nixpkgs/archive/master.tar.gz hello
[1.8 MiB DL] downloading 'https://github.com/NixOS/nixpkgs/archive/master.tar.gz'

This commit also updates fmt calls with three numbers (when something is
currently 'running' too) - I'm not sure if this can be provoked, but
showing "0" as expected doesn't make any sense, as we're obviously doing
more than nothing.
2019-05-11 12:34:39 +02:00
Eelco Dolstra 156e3a9daa
nix dev-shell: Ignore SSL_CERT_FILE 2019-05-11 01:50:28 +02:00
Eelco Dolstra cb5ebc5c11
nix dev-shell: Keep $TERM 2019-05-08 17:07:35 +02:00
Eelco Dolstra 2bc55aba1e
Merge remote-tracking branch 'origin/master' into flakes 2019-05-08 14:30:27 +02:00
Eelco Dolstra 2fc8a29a9c
Merge remote-tracking branch 'tweag/nix-shell' into flakes 2019-05-08 13:46:44 +02:00
Nick Van den Broeck 201f92e02c Fixed Flake data type and flake fetching 2019-05-07 05:57:08 +02:00
Eelco Dolstra 7ba0f98e64 nix dev-shell: Less purity 2019-05-02 21:28:52 +02:00
Eelco Dolstra 8ec77614f6 Move createTempFile to libutil 2019-05-02 21:28:41 +02:00
Eelco Dolstra dea18ff999 nix dev-shell: Execute shellHook 2019-05-02 21:13:19 +02:00
Eelco Dolstra 2919c496ea nix dev-shell: Use 'provides.devShell' by default
Thus

  $ nix dev-shell

will now build the 'provides.devShell' attribute from the flake in the
current directory. If it doesn't exist, it falls back to
'provides.defaultPackage'.
2019-05-02 21:10:13 +02:00
Eelco Dolstra 2b8c63f303 Add 'nix dev-shell' and 'nix print-dev-env' command
'nix dev-shell' is intended to replace nix-shell. It supports flakes,
e.g.

  $ nix dev-shell nixpkgs:hello

starts a bash shell providing an environment for building 'hello'.

Like Lorri (and unlike nix-shell), it computes the build environment
by building a modified top-level derivation that writes the
environment after running $stdenv/setup to $out and exits. This
provides some caching, so it's faster than nix-shell in some cases
(especially for packages with lots of dependencies, where the setup
script takes a long time).

There also is a command 'nix print-dev-env' that prints out shell code
for setting up the build environment in an existing shell, e.g.

  $ . <(nix print-dev-env nixpkgs:hello)

https://github.com/tweag/nix/issues/21
2019-05-02 20:22:14 +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 cc51e37ad0 Use "." as the default installable
This makes e.g. "nix build" do something more or less reasonable
(namely, build the default package of the flake in the current
directory).
2019-04-19 16:16:04 +02:00
Eelco Dolstra 4fb594a375 Merge remote-tracking branch 'tweag/resolvedFlake' into flakes 2019-04-19 15:56:17 +02:00
Eelco Dolstra 3392f1b778 Shut up clang warning 2019-04-19 14:41:06 +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
Eelco Dolstra 160ce18a0e Improve missing flake.nix error message 2019-04-19 11:43:56 +02:00
Nick Van den Broeck b42ba08fc8 Add command flake clone 2019-04-17 13:31:09 +02:00