propagate NIX_BUILD_SHELL also in pure builds document NIX_BUILD_SHELL in the nix-shell command documentation
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@ -176,6 +176,22 @@ also <xref linkend="sec-common-options" />.</phrase></para>
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</refsection>
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</refsection>
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<refsection><title>Environment variables</title>
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<variablelist>
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<varlistentry><term><envar>NIX_BUILD_SHELL</envar></term>
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<listitem><para>Shell used to start the interactive environment.
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Defaults to the <command>bash</command> found in <envar>PATH</envar>.</para></listitem>
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</varlistentry>
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</variablelist>
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</refsection>
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<refsection><title>Examples</title>
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<refsection><title>Examples</title>
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<para>To build the dependencies of the package Pan, and start an
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<para>To build the dependencies of the package Pan, and start an
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@ -270,7 +270,7 @@ foreach my $expr (@exprs) {
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my $tmp = $ENV{"TMPDIR"} // $ENV{"XDG_RUNTIME_DIR"} // "/tmp";
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my $tmp = $ENV{"TMPDIR"} // $ENV{"XDG_RUNTIME_DIR"} // "/tmp";
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if ($pure) {
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if ($pure) {
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foreach my $name (keys %ENV) {
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foreach my $name (keys %ENV) {
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next if grep { $_ eq $name } ("HOME", "USER", "LOGNAME", "DISPLAY", "PATH", "TERM", "IN_NIX_SHELL", "TZ", "PAGER");
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next if grep { $_ eq $name } ("HOME", "USER", "LOGNAME", "DISPLAY", "PATH", "TERM", "IN_NIX_SHELL", "TZ", "PAGER", "NIX_BUILD_SHELL");
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delete $ENV{$name};
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delete $ENV{$name};
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}
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}
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# NixOS hack: prevent /etc/bashrc from sourcing /etc/profile.
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# NixOS hack: prevent /etc/bashrc from sourcing /etc/profile.
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