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2016-10-26Fix SIGFPE from integer overflow during divisionTuomas Tynkkynen
On some architectures (like x86_64 or i686, but not ARM for example) overflow during integer division causes a crash due to SIGFPE. Reproduces on a 64-bit system with: nix-instantiate --eval -E '(-9223372036854775807 - 1) / -1' The only way this can happen is when the smallest possible integer is divided by -1, so just special-case that.
2016-10-19fixup! replace own regex class with std::regexAlexander Ried
2016-10-18replace own regex class with std::regexAlexander Ried
2016-09-21printMsg(lvlError, ...) -> printError(...) etc.Eelco Dolstra
2016-09-14Enable HTTP/2 supportEelco Dolstra
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.
2016-08-30Fix GC buildEelco Dolstra
2016-08-29forceBool(): Show position infoEelco Dolstra
2016-08-29Add builtin function "partition"Eelco Dolstra
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).
2016-08-29nix path-info: Add --json flagEelco Dolstra
Also, factor out JSON generation from value-to-json.{cc,hh}, and support producing indented JSON.
2016-08-29callFunction: Copy functors to the heapShea Levy
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
2016-08-23nix build: Use Nix search pathEelco Dolstra
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.
2016-08-17Add a mechanism for derivation attributes to reference the derivation's outputsEelco Dolstra
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.
2016-08-16Merge pull request #1031 from abbradar/replacestrings-contextEelco Dolstra
Allow contexted strings in replaceStrings
2016-08-16Allow contexted strings in replaceStringsNikolay Amiantov
2016-08-15builtins.fetch{url,tarball}: Allow name attributeShea Levy
2016-07-26makeFixedOutputPath(): Drop superfluous HashType argumentEelco Dolstra
2016-07-26builtins.{fetchurl,fetchTarball}: Support a sha256 attributeEelco Dolstra
Also, allow builtins.{fetchurl,fetchTarball} in restricted mode if a hash is specified.
2016-06-01Make the store directory a member variable of StoreEelco Dolstra
2016-05-04Cleanup: Remove singleton()Eelco Dolstra
2016-04-29Support Git repos in the Nix pathEelco Dolstra
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.
2016-04-29Add fetchgit builtinEelco Dolstra
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.
2016-04-25Improved logging abstractionEelco Dolstra
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.
2016-04-14Merge pull request #815 from vcunat/p/outputsToInstallEelco Dolstra
nix-env: respect meta.outputsToInstall
2016-04-14Make $NIX_PATH parsing more robustEelco Dolstra
2016-04-14Make the search path lazier with non-fatal errorsEelco Dolstra
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.
2016-04-14Make primop registration pluggableEelco Dolstra
This way we don't have to put all primops in one giant file.
2016-03-04Propagate path context via builtins.readFileNikolay Amiantov
2016-02-29Add an HTTP binary cache storeEelco Dolstra
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
2016-02-24Throw a specific error for incomplete parse errors.Scott Olson
`nix-repl` will use this for deciding whether to keep waiting for input or error out right away.
2016-02-23nix-env: respect meta.outputsToInstallVladimír Čunát
Discussed on https://github.com/NixOS/nixpkgs/pull/12653#discussion_r51601849
2016-02-19JSONObject: Support floats and booleansEelco Dolstra
2016-02-15Fix broken number parsing in fromJSONEelco Dolstra
The call to tmp_number.append had its arguments mixed up. Also, JSON does not allow a trailing "," after array/object members.
2016-02-12Merge pull request #762 from ctheune/ctheune-floatsEelco Dolstra
Implement floats
2016-02-04StoreAPI -> StoreEelco Dolstra
Calling a class an API is a bit redundant...
2016-02-04Eliminate the "store" global variableEelco Dolstra
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.)
2016-01-20Revert "Revert "next try for "don't abort when given unmatched '}' with ↵Eelco Dolstra
'start-condition stack underflow'. This fixes #751""" This reverts commit b669d3d2e83d3c50238751b57cff3ed0ca39bc8a.
2016-01-20Revert "next try for "don't abort when given unmatched '}' with ↵Eelco Dolstra
'start-condition stack underflow'. This fixes #751"" This reverts commit ed23c8568e10d15196bb4ff2b79fc14191d28109. Let's merge this *after* the 1.11.1 release.
2016-01-19next try for "don't abort when given unmatched '}' with 'start-condition ↵Fabian Schmitthenner
stack underflow'. This fixes #751" This reverts commit 8120b6fb8a4924f8ae717bba9bbda4a2f89e2141 and fixes the regression introduced in 8d22b26448a091c76ab972c0b0603daac5e255e4.
2016-01-19Revert "don't abort when given unmatched '}' with 'start-condition stack ↵Eelco Dolstra
underflow'. This fixes #751" This reverts commit 8d22b26448a091c76ab972c0b0603daac5e255e4. 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
2016-01-12don't abort when given unmatched '}' with 'start-condition stack underflow'. ↵Fabian Schmitthenner
This fixes #751
2016-01-07Fix some signedness warningsEelco Dolstra
2016-01-06@eelco's feedback: downgrade to regular float for size, remove unused function.Christian Theune
2016-01-05Better error messageFabian Schmitthenner
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.
2016-01-05Use __toString when coercing sets to strings.Shea Levy
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.
2016-01-05manual: document builtins.functionArgsVladimír Čunát
The text is just a conversion of comment from src/libexpr/primops.cc
2016-01-05Edge condition: parser did not pick up floats starting exactly with 0.Christian Theune
2016-01-05Fix up float parsing.Christian Theune
2016-01-05Try a simplified version of float lexing that didn't work.Christian Theune
The last one I tried was botchered anyway ...
2016-01-05First hit at providing support for floats in the language.Christian Theune
2015-12-17showId: Handle empty attribute namesEelco Dolstra
We should probably disallow these, but until then, we shouldn't barf with an assertion failure. Fixes #738.
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