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Nix, the purely functional package manager
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Théophane Hufschmitt 2d651ad2d0 Always throw the right exception in connect 
When `nix::connect` is called with a socket path that's too long, it
forks a process that will `chdir` to the directory of the socket path
and call `::connect` with the relative path (which is hopefully
short-enough).

That works fairly well, except that an exception raised in this
subprocess won't be forwarded to the parent process. Instead the logic
will just notice that the subprocess exited with a non-zero error code,
and throw a generic `Error`. In particular, any failure in the
`::connect` call should throw a `SysError` with the correct error code,
but that's not the case.

Some places try to catch this `SysError` and look at its error code (to
potentially restart for example). But this doesn't work since the
actual error that gets thrown isn't a `SysError`.

Fix that by forwarding the `errno` in case something gets wrong (by
setting the subprocess exit code to it), and throwing a `SysError` with
the right error code in the parent process.
2022-06-15 18:07:13 +02:00
.github Use the nix command (and flakes) in the CI 2022-01-26 16:41:37 +01:00
config Run autoupdate 2021-06-01 11:42:38 +02:00
contrib function-trace: always show the trace 2019-09-18 23:23:21 +02:00
doc/manual rl-2.7.md: Fix title 2022-04-05 14:14:28 +02:00
m4 autoconf: Fix C++17 detection not working on Ubuntu 16.04. 2019-07-03 04:32:25 +02:00
maintainers Integrate push-docker.sh into the release script 2022-02-18 13:58:01 +01:00
misc completions: pipe stderr to /dev/null 2022-02-04 22:43:16 +01:00
mk mk/run_test.sh: Add missing backslash 2022-03-02 21:36:46 +01:00
perl Remove std::string alias (for real this time) 2022-02-25 16:13:02 +01:00
scripts installer: allow overriding nix user GID and UIDs 2022-03-01 19:17:41 +01:00
src Always throw the right exception in connect 2022-06-15 18:07:13 +02:00
tests tests: Make clearStore more resilient 2022-04-13 10:25:20 +02:00
.dir-locals.el .dir-locals.el: Set c-block-comment-prefix 2020-07-10 11:21:06 +02:00
.editorconfig Add .editorconfig 2017-06-05 22:57:28 +01:00
.gitignore Added result and .vscode to gitignore 2022-01-15 19:17:40 -08:00
.version Bump version 2022-01-25 00:14:59 +01:00
boehmgc-coroutine-sp-fallback.diff Fix leaking pthread_attr_t 2021-11-03 22:54:16 +01:00
bootstrap.sh bootstrap: Simplify & make more robust. 2011-09-06 12:11:05 +00:00
configure.ac Remove the -all_load flag on darwin 2022-04-13 10:24:53 +02:00
COPYING * Change this to LGPL to keep the government happy. 2006-04-25 16:41:06 +00:00
default.nix Remove url literals 2022-01-24 13:28:21 +01:00
docker.nix docker: var/tmp make add -p option to mkdir to also create parent dirs 2022-01-15 14:11:37 +01:00
flake.lock Add regression / performance tests against a fixed revision of Nixpkgs 2022-01-25 00:07:30 +01:00
flake.nix Split the root finding in a separate library 2022-04-13 10:24:53 +02:00
local.mk Remove 'dist' target 2020-12-03 16:17:58 +01:00
Makefile Rename the find-roots library 2022-04-13 10:24:53 +02:00
Makefile.config.in use LOWDOWN_LIBS variable 2022-01-30 20:59:58 +02:00
precompiled-headers.h Config: Use nlohmann/json 2020-08-20 11:02:16 +02:00
README.md throw freenode down the memory hole 2021-05-27 21:48:39 +02:00
shell.nix Remove url literals 2022-01-24 13:28:21 +01:00

README.md

Nix

Open Collective supporters Test

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.