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Jörg Thalheim f10b935f84
breakpointHook: add for debugging failing builds
Usuage: Add breakpointHook to your `buildInputs` like this:

  stdenv.mkDerivation rec {
    # ...
    buildInputs = [ breakpointHook ];
  });

When the build fails as show in this example:

  pkgs.hello.overrideAttrs (old: {
    buildInputs = [ breakpointHook ];
    postPatch = ''
      false
    '';
  });

It will halt execution printing the following message:

build failed in patchPhase with exit code 1
To attach to this build run the following command as root:

   cntr attach -t command cntr-/nix/store/ynyb4n82x2r7sldd58pbb405jdqh5f00-hello-2.10

Installing cntr and running the command will provide shell access to the
build sandbox of failed build:

sudo cntr attach -t command cntr-/nix/store/ynyb4n82x2r7sldd58pbb405jdqh5f00-hello-2.10
WARNING: bad ownership on /nix/var/nix/profiles/per-user/root, should be 1000
[nixbld@localhost:/var/lib/cntr]$

At /var/lib/cntr the sandbox filesystem is mounted. All commands and
files of the system are still accessible within the shell.
To execute commands from the sandbox use the `cntr exec` subcommand.
2018-10-25 10:19:41 +01:00
.github CONTRIBUTING.md: Clarify clarification on periods 2018-10-10 21:06:12 +00:00
doc coqPackages: update documentation to mention coq.ocamlPackages attribute 2018-10-19 10:29:49 +02:00
lib Merge pull request #48680 from markuskowa/licenses-22 2018-10-18 23:40:02 +02:00
maintainers ocamlPackages.zmq: init at 20180726 2018-10-22 06:51:17 +00:00
nixos Merge pull request #48834 from dhess/dovenull-group-fix 2018-10-22 22:46:17 +01:00
pkgs breakpointHook: add for debugging failing builds 2018-10-25 10:19:41 +01:00
.editorconfig Revert ".version: remove final newline" 2018-04-28 14:23:13 +02:00
.gitattributes gitattributes: disable merge=union in all-packages 2018-03-27 11:03:03 -05:00
.gitignore kde5: consolidate packages into desktops/kde-5 2016-03-01 10:36:00 -06:00
.version 18.09 -> 19.03 2018-09-02 16:45:00 -04:00
COPYING COPYING: move notice to README.md 2018-10-13 13:22:18 +00:00
default.nix Fix local path to release notes in error message 2018-10-08 05:43:15 -05:00
README.md COPYING: move notice to README.md 2018-10-13 13:22:18 +00:00

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Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the Hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:

% git remote add channels https://github.com/NixOS/nixpkgs-channels.git

For stability and maximum binary package support, it is recommended to maintain custom changes on top of one of the channels, e.g. nixos-18.09 for the latest release and nixos-unstable for the latest successful build of master:

% git remote update channels
% git rebase channels/nixos-18.09

For pull-requests, please rebase onto nixpkgs master.

NixOS Linux distribution source code is located inside nixos/ folder.

Communication:

Note: MIT license does not apply to the packages built by Nixpkgs, merely to the package descriptions (Nix expressions, build scripts, and so on). It also might not apply to patches included in Nixpkgs, which may be derivative works of the packages to which they apply. The aforementioned artifacts are all covered by the licenses of the respective packages.