Commit graph

4268 commits

Author SHA1 Message Date
Eelco Dolstra dc3f52a144
nix flake check: Check overlays 2019-09-10 14:52:22 +02:00
Eelco Dolstra f97d3753a1
Require flake.nix to be an attrset (not a non-trivial thunk) 2019-09-09 17:34:38 +02:00
Eelco Dolstra c87840ae14
Don't allow arbitrary computations in flake attributes
E.g. you can write 'edition = 201909' but not 'edition = 201909 + 0'.

Fixes #3075.
2019-09-09 16:34:44 +02:00
Eelco Dolstra 2fa7f2a56a
Use git+ prefix in flake URI schemes
Fixes #3045.
2019-09-05 17:15:09 +02:00
Eelco Dolstra 6f88fed819
Disable OpenSSL lock callback on OpenSSL >= 1.1.1 2019-09-04 14:14:03 +02:00
Eelco Dolstra 4caeefaf00
Revert "Remove obsolete OpenSSL locking code"
This reverts commit aeb695c007.
2019-09-04 14:06:52 +02:00
Eelco Dolstra e302ba0e65
Merge remote-tracking branch 'origin/master' into flakes 2019-09-04 13:30:11 +02:00
Eelco Dolstra e07ec8d27e
Support allowSubstitutes attribute in structured attribute derivations
Hopefully fixes #3081 (didn't test).
2019-09-03 16:03:49 +02:00
Eelco Dolstra f186000367
Add some noexcepts
This is to assert that callback functions should never throw (since
the context in which they're called may not be able to handle the
exception).
2019-09-03 13:45:35 +02:00
Eelco Dolstra 7348653ff4
Ensure that Callback is called only once
Also, make Callback movable but uncopyable.
2019-09-03 13:45:35 +02:00
Eelco Dolstra 8c4ea7a451
Downloader: Remove a possible double call to Callback 2019-09-03 13:45:32 +02:00
Eelco Dolstra 2dbd69dbf4 nix repl: Run in impure mode 2019-09-02 23:04:27 +02:00
Eelco Dolstra aeb695c007
Remove obsolete OpenSSL locking code
OpenSSL 1.1.1 no longer needs this (2e52e7df51).

This shuts up a clang warning about opensslLockCallback being unused.
2019-09-02 17:50:44 +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 a49b6761a5 Fix sourceInfo 2019-08-30 17:27:51 +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 2341f30ec6 Clean up the 'outputs' interface 2019-08-30 13:06:23 +02:00
Eelco Dolstra 89468410d5 Extract flake dependencies from the 'outputs' arguments
That is, instead of

  inputs = [ "nixpkgs" ];

  outputs = inputs: ... inputs.nixpkgs ...;

you can write

  outputs = { nixpkgs }: ... inputs.nixpkgs ...;
2019-08-30 11:22:34 +02:00
Eelco Dolstra ebc4dae517 Merge remote-tracking branch 'origin/master' into flakes 2019-08-29 16:11:38 +02:00
Eelco Dolstra 84de821004
Merge pull request #3069 from matthewbauer/max-name
Set maximum name length in Nix
2019-08-29 15:22:36 +02:00
Eelco Dolstra a2c4fcd5e9 Don't rely on st_blocks
It doesn't seem very reliable on ZFS.
2019-08-29 14:49:58 +02:00
Eelco Dolstra f27e53f77e Cleanup 2019-08-29 12:09:58 +02:00
Eelco Dolstra 7ef2645f45
Merge pull request #2921 from matthewbauer/handle-sigwinch
Handle SIGWINCH in main thread
2019-08-28 21:48:14 +02:00
Matthew Bauer 693e68e09c Set maximum name length in Nix
Previously we allowed any length of name for Nix derivations. This is
bad because different file systems have different max lengths. To make
things predictable, I have picked a max. This was done by trying to
build this derivation:

  derivation {
    name = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
    builder = "/no-such-path";
    system = "x86_64-linux";
  }

Take off one a and it will not lead to file name too long. That ends
up being 212 a’s. An even smaller max could be picked if we want to
support more file systems.

Working backwards, this is why:

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-${name}.drv.chroot

> 255 - 32 - 1 - 4 - 7 = 211
2019-08-28 12:32:54 -04:00
Eelco Dolstra 7298a38a07
Don't send certain setting overrides to the daemon
These are already handled separately. This fixes warnings like

  warning: ignoring the user-specified setting 'max-jobs', because it is a restricted setting and you are not a trusted user

when using the -j flag.
2019-08-28 16:29:44 +02:00
Eelco Dolstra e5b397b2c7 Merge branch 'test-sandboxing' of https://github.com/matthewbauer/nix 2019-08-27 20:58:47 +02:00
Matthew Bauer 5c06a8d328 Reset tmpDirInSandbox for unsandboxed 2019-08-23 20:24:39 -04:00
Jonas Chevalier b226b5cd97
nix-store: fix out of sync protocol
If a NAR is already in the store, addToStore doesn't read the source
which makes the protocol go out of sync. This happens for example when
two client try to nix-copy-closure the same derivation at the same time.
2019-08-16 15:05:45 +02:00
Jonas Chevalier 91b00b145f
libutil: add SizedSource
Introduce the SizeSource which allows to bound how much data is being
read from a source. It also contains a drainAll() function to discard
the rest of the source, useful to keep the nix protocol in sync.
2019-08-16 15:05:40 +02:00
Eelco Dolstra 477f82e5a7
Merge pull request #2782 from grahamc/flames
Track function start and end
2019-08-15 14:20:42 +02:00
Graham Christensen ee9c988a1b
Track function start and ends for flame graphs
With this patch, and this file I called `log.py`:

    #!/usr/bin/env nix-shell
    #!nix-shell -i python3 -p python3 --pure

    import sys
    from pprint import pprint

    stack = []
    timestack = []

    for line in open(sys.argv[1]):
        components = line.strip().split(" ", 2)
        if components[0] != "function-trace":
            continue

        direction = components[1]
        components = components[2].rsplit(" ", 2)

        loc = components[0]
        _at = components[1]
        time = int(components[2])

        if direction == "entered":
            stack.append(loc)
            timestack.append(time)
        elif direction == "exited":
            dur = time - timestack.pop()
            vst = ";".join(stack)
            print(f"{vst} {dur}")
            stack.pop()

and:

    nix-instantiate --trace-function-calls -vvvv ../nixpkgs/pkgs/top-level/release.nix -A unstable > log.matthewbauer 2>&1
    ./log.py ./log.matthewbauer > log.matthewbauer.folded
    flamegraph.pl --title matthewbauer-post-pr log.matthewbauer.folded > log.matthewbauer.folded.svg

I can make flame graphs like: http://gsc.io/log.matthewbauer.folded.svg

---

Includes test cases around function call failures and tryEval. Uses
RAII so the finish is always called at the end of the function.
2019-08-14 16:09:35 -04:00
Eelco Dolstra 662db921e2
nix dev-shell: Set dontAddDisableDepTrack 2019-08-09 18:51:52 +02:00
Eelco Dolstra 35ebae198f
Merge pull request #3031 from grahamc/low-speed-limit
conf: stalled-download-timeout: make tunable
2019-08-08 22:06:26 +02:00
Graham Christensen a02457db71
conf: stalled-download-timeout: make tunable
Make curl's low speed limit configurable via stalled-download-timeout.
Before, this limit was five minutes without receiving a single byte.
This is much too long as if the remote end may not have even
acknowledged the HTTP request.
2019-08-08 10:22:13 -04:00
Eelco Dolstra 1d750e0587
Merge remote-tracking branch 'origin/master' into flakes 2019-08-08 15:49:13 +02:00
Eelco Dolstra f9021c4c6c
Merge pull request #3030 from dtzWill/fix/missing-include-ocloexec
pathlocks: add include to fcntl.h for O_CLOEXEC
2019-08-07 22:03:09 +02:00
Eelco Dolstra 56df30cd3f
Merge pull request #2995 from tweag/post-build-hook
Add a post build hook
2019-08-07 15:02:29 +02:00
Will Dietz c3fefd1a6e
pathlocks: add include to fcntl.h for O_CLOEXEC 2019-08-07 07:41:22 -05:00
Eelco Dolstra 399b6f3c46
nix-store --verify: Don't repair while holding the GC lock 2019-08-02 18:48:26 +02:00
Eelco Dolstra a2597d5f27
Simplify
With BSD locks we don't have to guard against reading our own
temproots.
2019-08-02 18:39:16 +02:00
Eelco Dolstra e349f2c0a3
Use BSD instead of POSIX file locks
POSIX file locks are essentially incompatible with multithreading. BSD
locks have much saner semantics. We need this now that there can be
multiple concurrent LocalStore::buildPaths() invocations.
2019-08-02 18:39:16 +02:00
Eelco Dolstra ec415d7166
Add a test for auto-GC
This currently fails because we're using POSIX file locks. So when the
garbage collector opens and closes its own temproots file, it causes
the lock to be released and then deleted by another GC instance.
2019-08-02 18:39:16 +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
Matthew Bauer 9a0855bbb6 Don’t rely on EPERM
startProcess does not appear to send the exit code to the helper
correctly. Not sure why this is, but it is probably safe to just
fallback on all sandbox errors.
2019-07-30 17:53:37 -04:00
Eelco Dolstra 41d010fff6
Merge pull request #3009 from codedownio/add-pname-and-version-to-json
Add pname and version to nix-env -q --json
2019-07-30 11:43:45 +02:00
Eelco Dolstra 219d645987
Merge pull request #3013 from basvandijk/disable-lsof-for-darwin-tests
Disable findRuntimeRoots on darwin when running tests because lsof is slow
2019-07-30 11:34:18 +02:00
Bas van Dijk ee1e3132ca Disable findRuntimeRoots on darwin when running tests because lsof is slow
See: https://github.com/NixOS/nix/issues/3011
2019-07-30 11:29:03 +02:00