f2780fdc62
for building parts of the system. E.g. $ nix-build /etc/nixos/nixos -A upstartJobs.xserver to build the Upstart job for the X server, or $ nix-build /etc/nixos/nixos -A kernel to build the NixOS kernel. * /etc/profile.sh: if ~/.nix-defexpr doesn't exist yet, create it as a directory and add links to root's channels, /etc/nixos/nixos and /etc/nixos/install-source.nix (as "nixpkgs_sys"). * boot.useKernel -> boot.kernel. svn path=/nixos/trunk/; revision=9334
71 lines
2.1 KiB
Bash
71 lines
2.1 KiB
Bash
#! @shell@ -e
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# What are we supposed to do?
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action="$1"
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showSyntax() {
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# !!! more or less cut&paste from
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# system/switch-to-configuration.sh (which we call, of course).
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cat <<EOF
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Usage: $0 [switch|boot|test|build]
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switch: make the configuration the boot default and activate now
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boot: make the configuration the boot default
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test: activate the configuration, but don't make it the boot default
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build: build the configuration, but don't make it the default or
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activate it
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EOF
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exit 1
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}
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if test -z "$action"; then showSyntax; fi
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# Allow the location of NixOS sources and the system configuration
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# file to be overridden.
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if test -z "$NIXOS"; then NIXOS=/etc/nixos/nixos; fi
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if test -z "$NIXOS_CONFIG"; then NIXOS_CONFIG=/etc/nixos/configuration.nix; fi
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# Pull the manifests defined in the configuration (the "manifests"
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# attribute). Wonderfully hacky.
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if test -z "$NIXOS_NO_PULL"; then
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manifests=$(nix-instantiate --eval-only --xml --strict $NIXOS -A manifests \
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| grep '<string' | sed 's^.*"\(.*\)".*^\1^g')
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for i in $manifests; do
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NIX_DOWNLOAD_CACHE=/nix/var/nix/channel-cache nix-pull $i || true
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done
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fi
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# Either upgrade the configuration in the system profile (for "switch"
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# or "boot"), or just build it and create a symlink "result" in the
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# current directory (for "build" and "test").
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if test "$action" = "switch" -o "$action" = "boot"; then
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nix-env -p /nix/var/nix/profiles/system -f $NIXOS --set -A system
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pathToConfig=/nix/var/nix/profiles/system
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elif test "$action" = "test" -o "$action" = "build"; then
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nix-build $NIXOS -A system -K -k
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pathToConfig=./result
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else
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showSyntax
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fi
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# If we're not just building, then make the new configuration the boot
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# default and/or activate it now.
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if test "$action" = "switch" -o "$action" = "boot" -o "$action" = "test"; then
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$pathToConfig/bin/switch-to-configuration "$action"
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fi
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if test "$action" = "test"; then
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cat >&2 <<EOF
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Warning: if you remove or overwrite the symlink \`$pathToConfig', the
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active system configuration may be garbage collected! This may render
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the system inoperable (though a reboot will fix things).
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EOF
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fi
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