Commit graph

771 commits

Author SHA1 Message Date
Eelco Dolstra c55bf085eb printMsg(lvlError, ...) -> printError(...) etc. 2016-09-21 16:54:53 +02:00
Eelco Dolstra 90ad02bf62 Enable HTTP/2 support
The binary cache store can now use HTTP/2 to do lookups. This is much
more efficient than HTTP/1.1 due to multiplexing: we can issue many
requests in parallel over a single TCP connection. Thus it's no longer
necessary to use a bunch of concurrent TCP connections (25 by
default).

For example, downloading 802 .narinfo files from
https://cache.nixos.org/, using a single TCP connection, takes 11.8s
with HTTP/1.1, but only 0.61s with HTTP/2.

This did require a fairly substantial rewrite of the Downloader class
to use the curl multi interface, because otherwise curl wouldn't be
able to do multiplexing for us. As a bonus, we get connection reuse
even with HTTP/1.1. All downloads are now handled by a single worker
thread. Clients call Downloader::enqueueDownload() to tell the worker
thread to start the download, getting a std::future to the result.
2016-09-14 16:36:02 +02:00
Eelco Dolstra 92d917b71a Fix GC build 2016-08-30 13:12:12 +02:00
Eelco Dolstra c42d1acfeb forceBool(): Show position info 2016-08-29 19:37:19 +02:00
Eelco Dolstra 26d92017d3 Add builtin function "partition"
The implementation of "partition" in Nixpkgs is O(n^2) (because of the
use of ++), and for some reason was causing stack overflows in
multi-threaded evaluation (not sure why).

This reduces "nix-env -qa --drv-path" runtime by 0.197s and memory
usage by 298 MiB (in non-Boehm mode).
2016-08-29 19:36:54 +02:00
Eelco Dolstra c0a7b84748 nix path-info: Add --json flag
Also, factor out JSON generation from value-to-json.{cc,hh}, and
support producing indented JSON.
2016-08-29 17:29:24 +02:00
Shea Levy 9fa21765e7 callFunction: Copy functors to the heap
Normally it's impossible to take a reference to the function passed to
callFunction, so some callers (e.g. ExprApp::eval) allocate that value
on the stack. For functors, a reference to the functor itself may be
kept, so we need to have it on the heap.

Fixes #1045
2016-08-29 07:36:28 -04:00
Eelco Dolstra d74236d1f2 nix build: Use Nix search path
That is, unless --file is specified, the Nix search path is
synthesized into an attribute set. Thus you can say

  $ nix build nixpkgs.hello

assuming $NIX_PATH contains an entry of the form "nixpkgs=...". This
is more verbose than

  $ nix build hello

but is less ambiguous.
2016-08-23 17:11:19 +02:00
Eelco Dolstra 22d6e31fc6 Add a mechanism for derivation attributes to reference the derivation's outputs
For example, you can now say:

  configureFlags = "--prefix=${placeholder "out"} --includedir=${placeholder "dev"}";

The strings returned by the ‘placeholder’ builtin are replaced at
build time by the actual store paths corresponding to the specified
outputs.

Previously, you had to work around the inability to self-reference by doing stuff like:

  preConfigure = ''
    configureFlags+=" --prefix $out --includedir=$dev"
  '';

or rely on ad-hoc variable interpolation semantics in Autoconf or Make
(e.g. --prefix=\$(out)), which doesn't always work.
2016-08-17 17:19:32 +02:00
Eelco Dolstra ac841a4679 Merge pull request #1031 from abbradar/replacestrings-context
Allow contexted strings in replaceStrings
2016-08-16 12:47:20 +02:00
Nikolay Amiantov f1b8dd43be Allow contexted strings in replaceStrings 2016-08-16 13:20:56 +03:00
Shea Levy d52d391164 builtins.fetch{url,tarball}: Allow name attribute 2016-08-15 07:37:11 -04:00
Eelco Dolstra ee22a91ab8 makeFixedOutputPath(): Drop superfluous HashType argument 2016-07-26 21:25:52 +02:00
Eelco Dolstra 06bbfb6004 builtins.{fetchurl,fetchTarball}: Support a sha256 attribute
Also, allow builtins.{fetchurl,fetchTarball} in restricted mode if a
hash is specified.
2016-07-26 21:16:52 +02:00
Eelco Dolstra 7850d3d279 Make the store directory a member variable of Store 2016-06-01 16:24:17 +02:00
Eelco Dolstra 6c75cf69c3 Cleanup: Remove singleton() 2016-05-04 16:16:53 +02:00
Eelco Dolstra d8bf0d4859 Support Git repos in the Nix path
E.g.

  $ nix-build -I nixpkgs=git://github.com/NixOS/nixpkgs '<nixpkgs>' -A hello

This is not extremely useful yet because you can't specify a
branch/revision.
2016-04-29 21:07:47 +02:00
Eelco Dolstra 38539b943a Add fetchgit builtin
The function builtins.fetchgit fetches Git repositories at evaluation
time, similar to builtins.fetchTarball. (Perhaps the name should be
changed, being confusing with respect to Nixpkgs's fetchgit function,
with works at build time.)

Example:

  (import (builtins.fetchgit git://github.com/NixOS/nixpkgs) {}).hello

or

  (import (builtins.fetchgit {
    url = git://github.com/NixOS/nixpkgs-channels;
    rev = "nixos-16.03";
  }) {}).hello

Note that the result does not contain a .git directory.
2016-04-29 20:47:36 +02:00
Eelco Dolstra 41633f9f73 Improved logging abstraction
This also gets rid of --log-type, since the nested log type isn't
useful in a multi-threaded situation, and nobody cares about the
"pretty" log type.
2016-04-25 19:18:45 +02:00
Eelco Dolstra 31a1a8ed3c Merge pull request #815 from vcunat/p/outputsToInstall
nix-env: respect meta.outputsToInstall
2016-04-14 20:55:41 +02:00
Eelco Dolstra 5169a6da98 Make $NIX_PATH parsing more robust 2016-04-14 17:29:08 +02:00
Eelco Dolstra 363f37d084 Make the search path lazier with non-fatal errors
Thus, -I / $NIX_PATH entries are now downloaded only when they are
needed for evaluation. An error to download an entry is a non-fatal
warning (just like non-existant paths).

This does change the semantics of builtins.nixPath, which now returns
the original, rather than resulting path. E.g., before we had

  [ { path = "/nix/store/hgm3yxf1lrrwa3z14zpqaj5p9vs0qklk-nixexprs.tar.xz"; prefix = "nixpkgs"; } ... ]

but now

  [ { path = "https://nixos.org/channels/nixos-16.03/nixexprs.tar.xz"; prefix = "nixpkgs"; } ... ]

Fixes #792.
2016-04-14 15:32:24 +02:00
Eelco Dolstra 12b257f045 Make primop registration pluggable
This way we don't have to put all primops in one giant file.
2016-04-14 12:50:01 +02:00
Nikolay Amiantov f7f0116dd7 Propagate path context via builtins.readFile 2016-03-04 14:04:51 +03:00
Eelco Dolstra e9c50064b5 Add an HTTP binary cache store
Allowing stuff like

  NIX_REMOTE=https://cache.nixos.org nix-store -qR /nix/store/x1p1gl3a4kkz5ci0nfbayjqlqmczp1kq-geeqie-1.1

or

  NIX_REMOTE=https://cache.nixos.org nix-store --export /nix/store/x1p1gl3a4kkz5ci0nfbayjqlqmczp1kq-geeqie-1.1 | nix-store --import
2016-02-29 18:15:20 +01:00
Scott Olson 6498adb002 Throw a specific error for incomplete parse errors.
`nix-repl` will use this for deciding whether to keep waiting for input or
error out right away.
2016-02-24 04:32:21 -06:00
Vladimír Čunát 03cbb9ad59 nix-env: respect meta.outputsToInstall
Discussed on https://github.com/NixOS/nixpkgs/pull/12653#discussion_r51601849
2016-02-23 14:19:14 +01:00
Eelco Dolstra 7a173a7be1 JSONObject: Support floats and booleans 2016-02-19 14:24:04 +01:00
Eelco Dolstra e03d6e0998 Fix broken number parsing in fromJSON
The call to tmp_number.append had its arguments mixed up. Also, JSON
does not allow a trailing "," after array/object members.
2016-02-15 15:01:26 +01:00
Eelco Dolstra b3e8d72770 Merge pull request #762 from ctheune/ctheune-floats
Implement floats
2016-02-12 12:49:59 +01:00
Eelco Dolstra fa7cd5369b StoreAPI -> Store
Calling a class an API is a bit redundant...
2016-02-04 14:48:42 +01:00
Eelco Dolstra c10c61449f Eliminate the "store" global variable
Also, move a few free-standing functions into StoreAPI and Derivation.

Also, introduce a non-nullable smart pointer, ref<T>, which is just a
wrapper around std::shared_ptr ensuring that the pointer is never
null. (For reference-counted values, this is better than passing a
"T&", because the latter doesn't maintain the refcount. Usually, the
caller will have a shared_ptr keeping the value alive, but that's not
always the case, e.g., when passing a reference to a std::thread via
std::bind.)
2016-02-04 14:28:26 +01:00
Eelco Dolstra 5d8b7eb3e1 Revert "Revert "next try for "don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751"""
This reverts commit b669d3d2e8.
2016-01-20 16:34:42 +01:00
Eelco Dolstra b669d3d2e8 Revert "next try for "don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751""
This reverts commit ed23c8568e. Let's
merge this *after* the 1.11.1 release.
2016-01-20 00:05:28 +01:00
Fabian Schmitthenner ed23c8568e next try for "don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751"
This reverts commit 8120b6fb8a and fixes the regression introduced in
8d22b26448.
2016-01-19 20:35:35 +00:00
Eelco Dolstra 8120b6fb8a Revert "don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751"
This reverts commit 8d22b26448. It
breaks Nixpkgs:

$ nix-env -qa
error: syntax error, unexpected IND_STR, expecting '}', at /home/eelco/Dev/nixpkgs-stable/pkgs/top-level/python-packages.nix:7605:8
2016-01-19 20:33:32 +01:00
Fabian Schmitthenner 8d22b26448 don't abort when given unmatched '}' with 'start-condition stack underflow'. This fixes #751 2016-01-12 20:40:41 +00:00
Eelco Dolstra 9aac1861f7 Fix some signedness warnings 2016-01-07 14:37:39 +01:00
Christian Theune 934642155c @eelco's feedback: downgrade to regular float for size, remove unused function. 2016-01-06 08:25:58 +01:00
Fabian Schmitthenner 39d1da7b51 Better error message
Also show types when nix cannot compare values of different types.
This is also more consistent since types are already shown when comparing values of the same not comparable type.
2016-01-05 14:13:54 +01:00
Shea Levy 14080f3e4b Use __toString when coercing sets to strings.
For example, "${{ foo = "bar"; __toString = x: x.foo; }}" evaluates
to "bar".

With this, we can delay calling functions like mkDerivation,
buildPythonPackage, etc. until we actually need a derivation, enabling
overrides and other modifications to happen by simple attribute set
update.
2016-01-05 13:55:06 +01:00
Vladimír Čunát 29c0199d5c manual: document builtins.functionArgs
The text is just a conversion of comment from src/libexpr/primops.cc
2016-01-05 13:29:17 +01:00
Christian Theune a12a43046b Edge condition: parser did not pick up floats starting exactly with 0. 2016-01-05 09:54:49 +01:00
Christian Theune f872262e08 Fix up float parsing. 2016-01-05 09:46:37 +01:00
Christian Theune 494fc5acbb Try a simplified version of float lexing that didn't work.
The last one I tried was botchered anyway ...
2016-01-05 00:53:22 +01:00
Christian Theune 14ebde5289 First hit at providing support for floats in the language. 2016-01-05 00:40:40 +01:00
Eelco Dolstra a9faa7bbce showId: Handle empty attribute names
We should probably disallow these, but until then, we shouldn't barf
with an assertion failure.

Fixes #738.
2015-12-17 15:15:28 +01:00
Shea Levy f327970129 Merge branch 'auto-call-functor'
autoCallFunction now auto-calls functors
2015-11-25 11:57:31 -05:00
Shea Levy 9533532ce2 autoCallFunction: Auto-call functors 2015-11-25 11:56:14 -05:00
Eelco Dolstra cad40adce5 Merge pull request #704 from ysangkok/freebsd-support
FreeBSD support with knowledge about Linux emulation
2015-11-24 19:24:21 +01:00