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This commit is contained in:
John Ericson
2019-03-24 22:12:15 -04:00
parent 3b27113a7c
commit ceb27efde0
3 changed files with 25 additions and 26 deletions
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doc/stdenv.xml
+14 -15
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@@ -2633,21 +2633,20 @@ addEnvHooks "$hostOffset" myBashFunction
happens. It prevents nix from cleaning up the build environment
immediately and allows the user to attach to a build environment using
the <command>cntr</command> command. Upon build error it will print
instructions on how to use <command>cntr</command>, which can be used
to enter the environment for debugging. Installing cntr and
running the command will provide shell access to the build sandbox of
failed build. At <filename>/var/lib/cntr</filename> the sandboxed
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. Note that <command>cntr</command> also needs
to be executed on the machine that is doing the build, which might not
be the case when remote builders are enabled. <command>cntr</command> is
only supported on Linux-based platforms. To use it first add
<literal>cntr</literal> to your
<literal>environment.systemPackages</literal> on NixOS or alternatively
to the root user on non-NixOS systems. Then in the package that is
supposed to be inspected, add <literal>breakpointHook</literal> to
<literal>nativeBuildInputs</literal>.
instructions on how to use <command>cntr</command>, which can be used to
enter the environment for debugging. Installing cntr and running the
command will provide shell access to the build sandbox of failed build.
At <filename>/var/lib/cntr</filename> the sandboxed 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. Note that <command>cntr</command> also needs to be executed
on the machine that is doing the build, which might not be the case when
remote builders are enabled. <command>cntr</command> is only supported
on Linux-based platforms. To use it first add <literal>cntr</literal> to
your <literal>environment.systemPackages</literal> on NixOS or
alternatively to the root user on non-NixOS systems. Then in the package
that is supposed to be inspected, add <literal>breakpointHook</literal>
to <literal>nativeBuildInputs</literal>.
<programlisting>
nativeBuildInputs = [ breakpointHook ];
</programlisting>