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nix-build --run-env: Source $stdenv/setup in the interactive shell

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This ensures that not just environment variables are set, but also
shell functions such as unpackPhase, configurePhase and so on.
This commit is contained in:
Eelco Dolstra 2013-07-11 14:32:22 +02:00
parent 212e96f39c
commit 656390062a
2 changed files with 26 additions and 16 deletions
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17
doc/manual/nix-build.xml
View file

@ -79,8 +79,9 @@ or renamed. So don’t rename the symlink.</para></warning>
the dependencies of the derivation, but not the derivation itself. It
will then start an interactive shell in which all environment
variables defined by the derivation have been set to their
corresponding values. This is useful for reproducing the environment
of a derivation for development.</para>
corresponding values, and the script <literal>$stdenv/setup</literal>
has been sourced. This is useful for reproducing the environment of a
derivation for development.</para>
</refsection>
@ -144,9 +145,9 @@ also <xref linkend="sec-common-options" />.</phrase></para>
<varlistentry><term><option>--command</option> <replaceable>cmd</replaceable></term>
<listitem><para>In the environment of the derivation, executeq the
command <replaceable>cmd</replaceable> instead of the default
interactive shell.</para></listitem>
<listitem><para>In the environment of the derivation, run the
shell command <replaceable>cmd</replaceable> instead of starting
an interactive shell.</para></listitem>
</varlistentry>
@ -181,10 +182,10 @@ interactive shell in which to build it:
<screen>
$ nix-build '&lt;nixpkgs>' --run-env -A pan
$ tar xf $src
$ unpackPhase
$ cd pan-*
$ ./configure
$ make
$ configurePhase
$ buildPhase
$ ./pan/gui/pan
</screen>

25
scripts/nix-build.in
View file

@ -3,6 +3,7 @@
use strict;
use Nix::Config;
use Nix::Store;
use Nix::Utils;
use File::Temp qw(tempdir);
@ -15,7 +16,7 @@ my @buildArgs = ();
my @exprs = ();
my $shell = $ENV{SHELL} || "/bin/sh";
my $envCommand = "p=\$PATH; source \$stdenv/setup; PATH=\$PATH:\$p; exec $shell";
my $envCommand = ""; # interactive shell
my @envExclude = ();
@ -124,7 +125,7 @@ for (my $n = 0; $n < scalar @ARGV; $n++) {
elsif ($arg eq "--command") {
$n++;
die "$0: `$arg' requires an argument\n" unless $n < scalar @ARGV;
$envCommand = $ARGV[$n];
$envCommand = "$ARGV[$n]\nexit $!";
}
elsif ($arg eq "--exclude") {
@ -169,15 +170,23 @@ foreach my $expr (@exprs) {
# Set the environment.
$ENV{'NIX_BUILD_TOP'} = $ENV{'TMPDIR'} || "/tmp";
foreach (keys %{$drv->{env}}) {
$ENV{$_} = $drv->{env}->{$_};
}
$ENV{$_} = $drv->{env}->{$_} foreach keys %{$drv->{env}};
# Run a shell using the derivation's environment. For
# convenience, source $stdenv/setup to setup additional
# environment variables. Also don't lose the current $PATH
# directories.
exec($ENV{SHELL}, "-c", $envCommand);
# environment variables and shell functions. Also don't lose
# the current $PATH directories.
my $rcfile = "$tmpDir/rc";
writeFile(
$rcfile,
'[ -e ~/.bashrc ] && source ~/.bashrc; ' .
'p=$PATH; ' .
'[ -e $stdenv/setup ] && source $stdenv/setup; ' .
'PATH=$PATH:$p; ' .
'set +e; ' .
'PS1="\n\[\033[1;32m\][nix-build:\w]$\[\033[0m\] "; ' .
$envCommand);
exec($ENV{SHELL}, "--rcfile", $rcfile);
die;
}