A modern, delicious implementation of the Nix package manager, focused on correctness, usability, and growth — and committed to doing right by its community

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Jake Waksbaum 01db455733 Fix deadlock in nix-store when max-connections=1 This fixes a bug I encountered where `nix-store -qR` will deadlock when the `--include-outputs` flag is passed and `max-connections=1`. The deadlock occurs because `RemoteStore::queryDerivationOutputs` takes the only connection from the connection pool and uses it to check the daemon version. If the version is new enough, it calls `Store::queryDerivationOutputs`, which eventually calls `RemoteStore::queryPartialDerivationOutputMap`, where we take another connection from the connection pool to check the version again. Because we still haven't released the connection from the caller, this waits for a connection to be available, causing a deadlock. This diff solves the issue by using `getProtocol` to check the protocol version in the caller `RemoteStore::queryDerivationOutputs`, which immediately frees the connection back to the pool before returning the protocol version. That way we've already freed the connection by the time we call `RemoteStore::queryPartialDerivationOutputMap`.		2020-11-16 02:35:50 -05:00
.github	Bump cachix/install-nix-action from v11 to v12 (#4237 )	2020-11-09 23:21:55 +00:00
config
contrib
corepkgs
doc/manual	docs: consistent console prompt (#4213 )	2020-11-02 16:32:05 +01:00
m4
maintainers
misc	Add some missing clean-files	2020-10-18 20:32:59 +02:00
mk
nix-rust
perl
scripts	enable Darwin.arm64 to install x86_64 binary	2020-11-10 08:48:49 -06:00
src	Fix deadlock in nix-store when max-connections=1	2020-11-16 02:35:50 -05:00
tests	Add test case for incidentally fixed #4228	2020-11-09 22:43:14 +01:00
.dir-locals.el
.editorconfig
.gitignore
.version	Revert "Bump version to 3.0"	2020-10-26 11:30:18 +01:00
bootstrap.sh
configure.ac
COPYING
default.nix
flake.lock	flake.lock: Update	2020-10-18 21:20:35 +02:00
flake.nix	No x86_32 static nix jobs for now	2020-10-28 05:13:18 +00:00
local.mk
Makefile
Makefile.config.in
precompiled-headers.h
README.md
shell.nix

README.md

Nix

Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible. Please refer to the Nix manual for more details.

Installation

On Linux and macOS the easiest way to install Nix is to run the following shell command (as a user other than root):

$ curl -L https://nixos.org/nix/install | sh

Information on additional installation methods is available on the Nix download page.

Building And Developing

See our Hacking guide in our manual for instruction on how to build nix from source with nix-build or how to get a development environment.

Additional Resources

License

Nix is released under the LGPL v2.1.